Splicing type cannon seat

Abstract

The utility model provides a splicing type cannon seat, and belongs to the technical field of cannon seats. Comprising a base and a terminal assembly. A left mounting step and a right mounting step are arranged on the left and right diagonal lines of the base; an adaptive groove is formed in the right side wall of the base opposite to the left mounting step; the left outer wall and the right outer wall of the base are each provided with at least two convex steps at intervals, and the convex steps on the two sides can be embedded. Mounting holes are formed in the left and right mounting steps. According to the utility model, through double embedding of the step-groove and the convex step and fixation of the mounting holes, accurate splicing of multiple cannon seats is realized, assembly deviation is avoided, and uniform spacing and stable butt joint with a plug are guaranteed; integral assembly can be performed after pre-splicing, so that the dense typesetting and assembling efficiency is greatly improved; the splicing structure is integrated on the side wall of the base, the appearance of the base is not changed, the layout of a circuit board does not need to be adjusted, and application cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of card seat, especially to a spliced card seat. BACKGROUND

[0002] As a commonly used audio connection interface component, the card seat is widely used in the assembly of circuit boards in various fields such as audio equipment, communication equipment, industrial control equipment, etc., to realize stable transmission of signals, with the advantages of stable connection and reliable contact. With the rapid development of electronic devices towards miniaturization and integration, the integration of circuit boards is continuously improved, and in many application scenarios, the host factory needs to densely arrange multiple card seats on a circuit board to meet the use demand of multi-channel signal transmission.

[0003] However, the existing card seat products on the market are mostly designed independently, and no special splicing and positioning structure is provided between the bases. When densely arranging and assembling, the operator needs to position and fix each card seat one by one, which not only increases the complexity of the assembly process and reduces the assembly efficiency, but more importantly, due to the lack of effective splicing and limiting, the positions of multiple card seats are prone to shift during assembly, resulting in uneven spacing between adjacent card seats. This positional deviation may on the one hand cause poor alignment with the card seat plug, affecting the stability of signal transmission, and on the other hand, if the assembly layout on the circuit board is adjusted to compensate for the positional deviation, it will disrupt the pre-designed circuit board layout scheme of the host factory, increasing the cost and cycle of design changes.

[0004] In addition, the existing card seat generally only has basic signal transmission function and does not integrate plug insertion state detection mechanism. In actual application, the system often cannot judge whether the card seat plug has been correctly inserted in real time, resulting in problems such as false start of the device in the disconnected state, abnormal audio channel or logical error of the control system.

[0005] In view of the above assembly pain points in the densely arranged scenario, the industry urgently needs a technical solution that can realize stable splicing between multiple card seats, has built-in plug detection capability, and does not change the original base shape of the card seat and affect the pre-set layout of the circuit board. There is no card seat structure in the prior art that can balance splicing stability and layout compatibility, therefore, it is of great practical significance to develop a card seat that can be spliced and adapted to the existing layout to improve the efficiency of dense assembly, ensure assembly precision and reduce the application cost of the host factory. Therefore, the present application provides a spliced card seat to meet the demand. UTILITY MODEL CONTENTS

[0006] The utility model wants to solve the technical problem to provide a spliced card seat to solve the existing system often cannot judge whether card plug has been inserted correctly in real time, causes equipment to start mistakenly under the condition of no connection, audio channel is unusual or control system logic error and other problems.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A spliced card seat, including base and terminal assembly setting on base, the left and right sides of base are provided with left installation step and right installation step, the left installation step and right installation step are provided in diagonal line, the right side wall of base opposite left installation step is provided with recess groove mutually embedded with left installation step, the left side outer wall and right side outer wall of base are provided with at least two convex steps, the convex step of left side outer wall and the convex step of right side outer wall can mutually embed, the left installation step and right installation step are provided with mounting hole.

[0009] Optionally, the terminal assembly includes ground terminal, first signal terminal and second signal terminal, the ground terminal includes ground terminal block and ground pin, the ground terminal block, first signal terminal and second signal terminal are arranged in the slot on the base.

[0010] Optionally, the base upper side is provided with force increasing groove, the sidewall of force increasing groove is provided with T type clamping groove.

[0011] Optionally, the T type clamping groove is connected with U type force increasing spring.

[0012] Optionally, the terminal assembly includes ground terminal, first signal terminal and second signal terminal, the ground terminal includes ground terminal block and ground pin.

[0013] Optionally, the ground terminal block, first signal terminal and second signal terminal are arranged in the slot on the base.

[0014] Optionally, one end of ground terminal block is provided with V type connecting groove, one end of ground pin is provided with T type connecting head connected with V type connecting groove, and the other end is connected with the lead-out groove on the sidewall of the mounting hole of left installation step.

[0015] Optionally, the terminal assembly further includes spring and static sheet arranged at the corner.

[0016] Optionally, the spring and static sheet are connected with the base through the insertion piece on both sides.

[0017] Optionally, the bottom of static sheet has U type connecting part abutting against spring.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] In the scheme, the left mounting step and the groove, the left and right outer wall boss step embedded fitting mounting hole are fixed, the multi-card seat precise splicing is realized, the assembly deviation is avoided, the adjacent interval uniformity is guaranteed, and the plug butt joint stability is improved.

[0020] The whole assembly is assembled after pre-splicing, the positioning and fixing process is saved, and the assembly efficiency of the intensive layout scene is greatly optimized.

[0021] The splicing structure is integrated in the side wall of the base, the base appearance size is not changed, the main machine factory does not need to adjust the layout of the circuit board, and the application cost is reduced.

[0022] The built-in mechanical detection switch composed of the elastic sheet and the static sheet can realize real-time judgment of whether the plug is inserted or not without additional sensors, is suitable for scenes such as intelligent audio system and automatic control equipment which need state feedback, and improves the system intelligent level and operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated herein and forming part of the specification show the embodiments of the utility model, and together with the specification, further serve to explain the principles of the utility model, and enable the related skilled in the art to implement and use the utility model.

[0024] Figure 1 It is a structure schematic view of the splicing type card seat.

[0025] Figure 2 It is an explosion schematic view of the splicing type card seat.

[0026] Figure 3 It is a base structure schematic view of the splicing type card seat.

[0027] Figure 4 It is a ground terminal structure schematic view of the splicing type card seat.

[0028] Figure 5 It is an elastic sheet and static sheet structure schematic view of the splicing type card seat.

[0029] Figure 6 It is a splicing type card seat after splicing schematic view.

[0030] Reference signs:

[0031] 1. Base; 2. Left mounting step; 3. Right mounting step; 4. Groove; 5. Raised step; 6. Mounting hole; 7. Force-boosting groove; 8. "T" shaped slot; 9. "U" shaped force-boosting spring; 10. Grounding terminal; 11. First signal terminal; 12. Second signal terminal; 13. Grounding pin; 14. "V" shaped connecting groove; 15. "T" shaped connector; 16. Lead-out groove; 17. Spring; 18. Stationary piece; 19. "I" shaped slot; 20. "U" shaped connecting part; 21. Grounding plug.

[0032] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0033] The following is a detailed description of a splicing XLR connector provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0034] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0035] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0036] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0037] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0038] like Figures 1 to 6 As shown, this modular XLR connector includes a base 1 and terminal assemblies mounted on the base 1. The base 1 has a left mounting step 2 and a right mounting step 3 protruding from its left and right sides, arranged diagonally. A groove 4, which engages with the left mounting step, is provided on the right side wall of the base opposite to the left mounting step. At least two raised steps 5 are spaced apart on both the left and right outer walls of the base, and these steps can engage with each other. Mounting holes 6 are provided on the left and right mounting steps, which are diagonally distributed, allowing adjacent bases to be positioned by the left mounting step of one base engaging with the corresponding groove of another. The at least two raised steps on the left and right outer walls of the base adapt and engage with each other, achieving multiple positioning. The mounting holes on the left and right mounting steps are used to fix the connector to the circuit board after assembly, and all assembly structures are integrated into the side walls of the base, without altering the overall shape of the base. The double-interlocking structure forms a three-dimensional limit, avoiding horizontal / vertical offset during assembly and ensuring uniform spacing between adjacent XLR connectors when densely arranged.

[0039] Specifically, a force-enhancing groove 7 is provided on the upper side of the base, and a "T"-shaped slot 8 is provided on the side wall of the force-enhancing groove 7. A "U"-shaped force-enhancing spring 9 is connected to the "T"-shaped slot.

[0040] In this embodiment, a force-enhancing groove is provided on the upper side of the base, and the shape constraint of the "T"-shaped slot in the groove wall is used to achieve the stable assembly of the "U"-shaped force-enhancing spring. The elastic deformation characteristics of the "U"-shaped spring generate continuous pressure when the XLR plug is inserted or removed, thereby enhancing the insertion and removal pressure between the plug and the terminal.

[0041] Specifically, the terminal assembly includes a grounding terminal 10, a first signal terminal 11, and a second signal terminal 12. The grounding terminal includes a grounding plug 21 and a grounding pin 13. The grounding plug, the first signal terminal, and the second signal terminal are spaced apart in slots on the base. One end of the grounding plug is provided with a "V"-shaped connecting groove 14, and one end of the grounding pin is provided with a "T"-shaped connector 15 that connects to the "V"-shaped connecting groove 14. The other end connects to the lead-out groove 16 on the side wall of the mounting hole of the left mounting step. The grounding terminal, the first signal terminal, and the second signal terminal are spaced apart through the base slots to achieve signal isolation. The grounding terminal is divided into a grounding plug and a grounding pin, which are adapted to be connected through the "V"-shaped connecting groove and the "T"-shaped connector. The other end of the grounding pin is connected to the lead-out groove on the side wall of the mounting hole of the left mounting step to facilitate the grounding path lead-out connection.

[0042] Specifically, the terminal assembly also includes a spring 17 and a stationary piece 18 disposed at the corner. The inserts on both sides of the spring and the stationary piece are connected to the "I"-shaped slot 19 on the base. The bottom of the stationary piece has a "U"-shaped connecting part 20 that abuts against the spring.

[0043] The working principle of the technical solution provided by this utility model is as follows:

[0044] Precise positioning and installation of the two components are achieved through a "I"-shaped slot on the base; the "U"-shaped connection at the bottom of the stationary plate utilizes elastic deformation to maintain constant force contact with the spring plate, forming an elastic conductive pair, while the "I"-shaped slot restricts the relative displacement of the two components. The elastic contact of the "U"-shaped structure ensures reliable contact even under vibration, preventing circuit failure.

[0045] When the plug is not inserted, the spring 17 and the stationary plate 18 form a stable electrical connection through the "U"-shaped connector 20, constituting a normally closed detection switch that can be connected to the detection circuit of the control system and output a "not inserted" signal. When the XLR plug is inserted into the base, the plug shell or internal structure will push the spring 17, causing it to deflect away from the stationary plate, resulting in the spring 17 separating from the "U"-shaped connector 20, the detection circuit is broken, and the system recognizes it as "inserted".

[0046] The detection structure is fully integrated inside the base (e.g. Figure 1 Located in the lower right corner, it does not affect the overall shape of the XLR connector or the arrangement of other internal terminals. It eliminates the need for additional microswitches or photoelectric sensors, simplifying the overall structure and avoiding the reliability degradation and assembly complexity caused by external detection components.

[0047] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A modular XLR connector, comprising a base and a terminal assembly disposed on the base, characterized in that: The base has a left mounting step and a right mounting step protruding from its left and right sides. The left mounting step and the right mounting step are arranged diagonally. A groove is provided on the right side wall of the base opposite to the left mounting step to fit into the left mounting step. At least two raised steps are provided at intervals on both the left and right outer walls of the base, and the raised steps on the left outer wall and the raised steps on the right outer wall can fit into each other. The left and right mounting steps are provided with mounting holes.

2. The modular XLR connector according to claim 1, characterized in that: The terminal assembly includes a ground terminal, a first signal terminal, and a second signal terminal. The ground terminal includes a grounding plug and a grounding pin. The grounding plug, the first signal terminal, and the second signal terminal are spaced apart in slots on the base.

3. The modular XLR connector according to claim 1, characterized in that: The base has a force-enhancing groove on its upper side, and a "T"-shaped slot is provided on the side wall of the force-enhancing groove.

4. The modular XLR connector according to claim 3, characterized in that: A U-shaped force-increasing spring is connected to the "T"-shaped slot.

5. The modular XLR connector according to claim 1, characterized in that: The terminal assembly includes a ground terminal, a first signal terminal, and a second signal terminal. The ground terminal includes a grounding connector and a grounding pin.

6. The modular XLR connector according to claim 5, characterized in that: The grounding plug, the first signal terminal, and the second signal terminal are spaced apart in slots on the base.

7. The modular XLR connector according to claim 6, characterized in that: One end of the grounding socket is provided with a "V"-shaped connection groove, and one end of the grounding pin is provided with a "T"-shaped connector that connects to the "V"-shaped connection groove. The other end is connected to the lead-out groove on the side wall of the mounting hole of the left mounting step.

8. The modular XLR connector according to claim 1, characterized in that: The terminal assembly also includes spring contacts and stationary contacts located at the corners.

9. The modular XLR connector according to claim 8, characterized in that: The inserts on both sides of the spring and stationary plate are connected to the "I"-shaped slots on the base.

10. The modular XLR connector according to claim 9, characterized in that: The bottom of the stationary piece has a "U"-shaped connecting part that abuts against the spring piece.

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