A terminal structure and an audio source plug-in assembly
By designing a vertical support plate structure and limiting grooves, the problems of tilted solder feet and space occupation in the audio source plug-in assembly were solved, achieving stable assembly and miniaturized design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINGATRON ELECTRONICS CHINA
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-03
Smart Images

Figure CN224458668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of terminal processing technology, and in particular to a terminal structure and an audio source plug-in assembly. Background Technology
[0002] Audio source connector assemblies are widely used and mainly include male audio source connectors and sockets. The male audio source connector on the headphone plug or microphone needs to be plugged into the socket. The socket is usually equipped with a 3.5mm headphone or microphone jack. The connector is equipped with metal terminals. One end of the metal terminal contacts the male connector, and the other end is connected to other parts through terminal solder pins.
[0003] In the above installation process, the socket is composed of a rubber shell, with terminals installed on one side of the rubber. The terminals are bent in a U-shape, forming parallel support plates. One set of support plates is placed inside the 3.5mm socket of the rubber shell, while the other set of support plates is suspended on the upper side of the rubber shell and has terminal solder feet formed by bending. Ear plates that insert into the surface of the rubber shell are formed on both sides of this support plate. The connecting plate between the two sets of support plates passes through the rubber shell. The support plates on the upper side of the rubber shell occupy space on the upper side of the rubber shell, resulting in a large overall space occupied by the audio source plug-in assembly. In addition, since most of the support plates on the rubber shell are suspended, the terminal solder feet may tilt to the left or right during automated assembly, causing the terminal solder feet to be unable to mate with subsequent installation parts. Utility Model Content
[0004] The purpose of this utility model is to provide a terminal structure and audio source plug-in assembly to solve the problems of the terminal solder joint position being tilted left and right in the prior art, and the support plate on one side taking up a lot of space.
[0005] To achieve this objective, the present invention adopts the following technical solution: The present invention provides a terminal structure, including a first support plate and a second support plate, the first support plate and the second support plate being connected in a bent shape, the first support plate abutting against a male connector, the insertion direction of the male connector being set as the X-axis, the length direction of the second support plate being the Y-axis, the second support plate being provided with a welding foot, the length direction of the welding foot being the Z-axis, the X-axis, the Y-axis and the Z-axis being perpendicular to each other, the second support plate being provided with a bottom surface, the bottom surface being perpendicular to the Z-axis.
[0006] Preferably, the root of the welding foot is provided with a first positioning groove, which can mate with a first protrusion on the audio source plug assembly.
[0007] Preferably, the bottom of the first support plate is connected to a U-shaped plate, an elastic arm is connected to the U-shaped plate, and a contact protrusion is installed on the elastic arm, the contact protrusion abutting against the male end.
[0008] Preferably, the elastic arm is provided with an inclined surface, the inclined surface is inclined to the side away from the first support plate, and the contact protrusion is provided on the inclined surface.
[0009] Preferably, the first support plate is provided with second positioning grooves on both sides, and the second positioning grooves can mate with the second protrusion on the audio source plug-in assembly.
[0010] Preferably, the second positioning groove is symmetrically arranged on both sides of the first support plate.
[0011] Preferably, the first support plate, the second support plate, the U-shaped plate, the elastic arm, the inclined surface, and the contact protrusion are integrally formed.
[0012] Preferably, the first support plate and the second support plate are perpendicular to each other.
[0013] Preferably, the terminal structure is made of metal.
[0014] An audio source plug-in assembly includes the terminal structure described above, and also includes a plug socket. The plug socket is provided with a plug hole, and the male connector is inserted into the plug hole. A first groove is provided on one side of the plug hole, and a second groove is provided on the upper side of the plug hole. A first support plate is inserted into the first groove, and a second support plate is inserted into the second groove. A contact surface is provided at the bottom of the second groove, and the contact surface is in contact with and parallel to the bottom surface.
[0015] Beneficial effects: Since the bottom surface and the contact surface are in contact with each other, and the second support plate is inserted into the second groove, the terminal structure can be limited, keeping the terminal structure stable. Furthermore, since the bottom surface and the contact surface are in contact and parallel, and both the bottom surface and the contact surface are perpendicular to the Z-axis, the second support plate will remain perpendicular to the Z-axis. The welding feet at its upper end will always remain perpendicular to the bottom surface and the contact surface, ensuring that the installation position of the welding feet is consistent and there will be no offset or tilting problem, allowing the subsequent parts installed on the welding feet to be installed smoothly. Attached Figure Description
[0016] Figure 1 This is a main diagram of the terminal structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the main body of the audio source plug-in component of this utility model.
[0018] In the figure: 1. First support plate; 11. Second positioning groove; 2. Second support plate; 21. Bottom surface; 3. Welding foot; 31. First positioning groove; 4. U-shaped plate; 5. Elastic arm; 6. Inclined surface; 7. Contact protrusion; 8. Male head; 9. Plug-in socket; 91. First groove; 92. Second groove. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0022] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0023] In the current technology, the support plate on one side of the U-shaped terminal is in a suspended state. If the support plate bends during the installation process, it will cause the position of the terminal solder feet to shift. When other parts are subsequently assembled on the terminal solder feet, the tilted terminal solder feet will prevent the subsequent parts from being assembled in place.
[0024] To solve the above problems, such as Figures 1 to 2 As shown, this utility model provides a terminal structure, including a first support plate 1 and a second support plate 2. The first support plate 1 and the second support plate 2 are connected in a bent shape. The first support plate 1 abuts against a male connector 8. The insertion direction of the male connector 8 is set as the X-axis, and the length direction of the second support plate 2 is set as the Y-axis. A welding foot 3 is provided on the second support plate 2, and the length direction of the welding foot 3 is set as the Z-axis. The X-axis, Y-axis and Z-axis are perpendicular to each other. The second support plate 2 is provided with a bottom surface 21, which is perpendicular to the Z-axis. The terminal structure is usually made of a conductive metal material, usually copper.
[0025] The audio source plug-in assembly includes not only a terminal structure but also a plug socket 9. The plug socket 9 is provided with a plug hole, and the male connector 8 is inserted into the plug hole. A first groove 91 is provided on one side of the plug hole, and a second groove 92 is provided on the upper side of the plug hole. A first support plate 1 is inserted into the first groove 91, and a second support plate 2 is inserted into the second groove 92. A contact surface is provided at the bottom of the second groove 92, and the contact surface is in contact with and parallel to the bottom surface 21.
[0026] During the insertion process, the first support plate 1 and the second support plate 2 are inserted into the corresponding first groove 91 and second groove 92. The contact surface of the second groove 92 and the bottom surface 21 of the second support plate 2 are in contact with each other, and at this time, the bottom surface 21 and the contact surface are both perpendicular to the Z-axis. This can limit the welding foot 3. When the bottom surface 21 and the contact surface are released from contact, the welding foot 3 can maintain a state parallel to the Z-axis. At the same time, the second groove 92 limits the second support plate 2 in the Y-axis direction and the X-axis direction, so that the installation position of the welding foot 3 can be kept consistent, improving the assembly accuracy of the welding foot 3 and reducing the probability of subsequent part assembly failure.
[0027] The first support plate 1 is inserted into the first groove 91. The first insertion plate and the second insertion plate are usually bent at 90°. By limiting the first support plate 1 through the first groove 91, the welding foot 3 can be prevented from tilting in the X-axis direction, that is, the welding foot 3 is prevented from rotating around the Y-axis. The position of the welding foot 3 is further restricted to prevent the welding foot 3 from leaving the installation area, improve the convenience of subsequent automatic assembly, and avoid interference problems.
[0028] The root of the welding foot 3 is provided with a first positioning groove 31, which can mate with the first protrusion on the audio source plug-in assembly. The inner wall of the second groove 92 is provided with a first protrusion. This makes it easy to determine whether the terminal structure is plugged in during the plug-in process, and also prevents the terminal structure from coming out. It can fix the terminal structure along its own plugging direction to prevent the terminal structure from coming out.
[0029] The first support plate 1 and the second support plate 2 are both located on the side of the male connector 8, which can save the space occupied by the audio source plug-in assembly. Most of the terminal structure is located inside the plug socket 9, which can reduce the size of the plug socket 9 and make it easier for the audio source plug-in assembly to be adapted to smaller playback devices.
[0030] A U-shaped plate 4 is connected to the bottom of the first support plate 1. An elastic arm 5 is connected to the U-shaped plate 4, and a contact protrusion 7 is installed on the elastic arm 5. The contact protrusion 7 abuts against the male connector 8. By installing the elastic arm 5 on the U-shaped plate 4, the first support plate 1, the U-shaped plate 4, and the contact protrusion 7 are all located inside the connector 9, which facilitates a reduction in size and allows for adaptation to smaller playback devices.
[0031] The elastic arm 5 is provided with an inclined surface 6, which is inclined away from the first support plate 1. The inclined surface 6 is provided with a contact protrusion 7. The inclined surface 6 allows the male head 8 to make full contact with the contact protrusion 7, so that the male head 8 can make full contact after being inserted into the insertion hole.
[0032] The first support plate 1 has second positioning grooves 11 on both sides. The second positioning grooves 11 are symmetrically arranged to facilitate positioning and snapping by the connector operator, thereby improving the stability of the terminal structure. The second positioning grooves 11 can mate with the second protrusions on the audio source connector assembly. The first groove 91 has second protrusions on both sides. The two sets of second protrusions can limit and fix the first support plate 1, making it easier to determine the installation position of the first support plate 1 during installation and improving the accuracy of installation.
[0033] The first support plate 1, the second support plate 2, the U-shaped plate 4, the elastic arm 5, the inclined surface 6, and the contact protrusion 7 of this utility model are integrally formed, which facilitates subsequent bending processing and avoids the problem of breakage during bending.
[0034] The first support plate 1 and the second support plate 2 are perpendicular to each other, which facilitates subsequent processing and bending, and can unify the bending angle.
[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A terminal structure characterized by comprising: It includes a first support plate (1) and a second support plate (2), the first support plate (1) and the second support plate (2) are connected in a bent shape, the first support plate (1) abuts against the male connector (8), the insertion direction of the male connector (8) is set as the X-axis, the length direction of the second support plate (2) is set as the Y-axis, the second support plate (2) is provided with a welding foot (3), the length direction of the welding foot (3) is set as the Z-axis, the X-axis, the Y-axis and the Z-axis are perpendicular to each other, the second support plate (2) is provided with a bottom surface (21), the bottom surface (21) is perpendicular to the Z-axis.
2. The terminal structure according to claim 1, characterized in that The root of the welding foot (3) is provided with a first positioning groove (31), which can dock with the first protrusion on the audio source plug assembly.
3. The terminal structure according to claim 2, characterized in that The bottom of the first support plate (1) is connected to a U-shaped plate (4), and an elastic arm (5) is connected to the U-shaped plate (4). A contact protrusion (7) is installed on the elastic arm (5), and the contact protrusion (7) abuts against the male head (8).
4. The terminal structure according to claim 3, characterized in that The elastic arm (5) is provided with an inclined surface (6), which is inclined to the side away from the first support plate (1), and the inclined surface (6) is provided with the contact protrusion (7).
5. The terminal structure according to claim 1, characterized by The first support plate (1) has a second positioning groove (11) on both sides, and the second positioning groove (11) can dock with the second protrusion on the sound source plug-in assembly.
6. The terminal structure according to claim 5, characterized in that The second positioning groove (11) is symmetrically arranged on both sides of the first support plate (1).
7. The terminal structure according to claim 4, characterized by The first support plate (1), the second support plate (2), the U-shaped plate (4), the elastic arm (5), the inclined surface (6) and the contact convex bulge (7) are integrally formed.
8. The terminal structure according to claim 1, characterized by The first support plate (1) and the second support plate (2) are perpendicular to each other.
9. The terminal structure according to claim 1, characterized by The terminal structure is made of metal.
10. A sound source plug-in assembly characterized by comprising: The terminal structure according to claim 1 further includes a plug-in socket (9), on which a plug-in hole is provided, and the male connector (8) is inserted into the plug-in hole. A first groove (91) is provided on one side of the plug-in hole, and a second groove (92) is provided on the upper side of the plug-in hole. A first support plate (1) is inserted into the first groove (91), and a second support plate (2) is inserted into the second groove (92). A contact surface is provided at the bottom of the second groove (92), and the contact surface is in contact with and parallel to the bottom surface (21).