A small-pitch miniaturized rectangular electrical connector

Abstract

The utility model relates to a kind of small-pitch miniaturization rectangular electric connector, including insulating shell, the insulating shell top is completely open, the insulating shell bottom left and right two ends symmetrically are provided with integrally-formed cylindrical protrusion, the axis of the cylindrical protrusion is set vertically, integrally-formed rectangular protrusion is provided in the insulating shell, the axis of the rectangular protrusion is collinear with the axis of insulating shell, there is gap between the rectangular protrusion and insulating shell, the front end surface of the insulating shell is provided with triangular groove, the axis of the triangular groove is left and right, the front end surface and bottom end surface of the triangular groove are completely open, the design of insulating shell top completely open facilitates the processing forming of internal rectangular protrusion and relevant structure and subsequent assembly operation, the gap design between integrally-formed rectangular protrusion in the insulating shell and shell, can play better heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a small-pitch miniaturized rectangular electrical connector. Background Technology

[0002] Small-pitch miniaturized rectangular electrical connectors refer to wire-to-board, board-to-board, or board-to-FPC interfaces with a terminal pitch typically ≤0.5 mm and a low stack-up height. They are widely used in smartphones, wearables / earphones, drones and camera modules, laptop / tablet daughterboards, medical portable devices, and IoT terminals. Their typical structure consists of a high-temperature resistant / low-absorption engineering plastic insulator, tiny elastic contacts, a metal shielding shell or grounding frame, guiding / limiting structures, and locking components. Termination methods are mostly reflow soldering SMT, miniature crimping, or FPC snap-fit ​​termination.

[0003] The aforementioned existing technical solutions have the following drawbacks: Increasing the current density within the same size of traditional micro-parts leads to contact resistance heating; dust / sweat / flux residue and salt spray accelerate contact oxidation and fretting wear; and the terminal plating is thin and susceptible to sulfidation / corrosion. Utility Model Content

[0004] The purpose of this invention is to provide a small-pitch miniaturized rectangular electrical connector to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A small-pitch miniaturized rectangular electrical connector includes an insulating shell with a completely open top. Symmetrically arranged integrally formed cylindrical protrusions are located at the left and right ends of the bottom of the insulating shell, with the axes of the cylindrical protrusions arranged vertically. An integrally formed rectangular protrusion is located inside the insulating shell, with the axis of the rectangular protrusion collinear with the axis of the insulating shell. A gap exists between the rectangular protrusion and the insulating shell. A triangular groove is provided on the front end face of the insulating shell, with the axis of the triangular groove arranged horizontally. The front and bottom ends of the triangular groove are completely open.

[0006] By adopting the above technical solution, the fully open top design of the insulating shell facilitates the processing and forming of the internal rectangular protrusions and related structures, as well as the assembly of subsequent components. The gap design between the integrally formed rectangular protrusions inside the insulating shell and the shell can achieve the effect of heat dissipation.

[0007] In a further embodiment, a first rectangular groove is provided at the top left end of the rectangular protrusion, the axis of the first rectangular groove is vertically arranged, the top and bottom of the first rectangular groove are completely open, and the left end face of the first rectangular groove is completely open. A second rectangular groove is provided at the top right end of the rectangular protrusion, the axis of the second rectangular groove is vertically arranged, the top and bottom of the second rectangular groove are completely open, and the right end face of the second rectangular groove is completely open. A third rectangular groove is provided at the top left end of the rectangular protrusion, the axis of the third rectangular groove is vertically arranged, and the third rectangular groove communicates with the first rectangular groove. A fourth rectangular groove is provided at the top right end of the rectangular protrusion, the axis of the fourth rectangular groove is vertically arranged, and the fourth rectangular groove communicates with the second rectangular groove.

[0008] By adopting the above technical solutions, the first rectangular groove, the second rectangular groove, the third rectangular groove and the fourth rectangular groove can play a role in preventing mistakes, making installation faster and more convenient.

[0009] In a further embodiment, a plurality of fifth rectangular grooves are symmetrically arranged at the front and rear ends of the rectangular protrusion. The axis of the fifth rectangular groove is vertically arranged, and the top and bottom of the fifth rectangular groove are completely open. A battery cell is fixedly installed inside the fifth rectangular groove.

[0010] By adopting the above technical solution, the fifth rectangular slot can provide a precise positioning frame for the battery cell, effectively limiting the horizontal displacement of the battery cell and ensuring that multiple battery cells maintain a neat arrangement after installation. This avoids structural instability caused by positional deviations, while simplifying the installation process and improving assembly efficiency and consistency. Since the top and bottom of the fifth rectangular slot are completely open, the heat generated by the battery cell during operation can be quickly dissipated to the external environment through these two open surfaces, reducing heat accumulation around the battery cell.

[0011] In a further embodiment, the battery cell is integrally formed from a first straight edge, a first arcuate portion, a second straight edge, a base, a third straight edge, and a fourth straight edge. The base is fixedly installed with a fifth rectangular groove. The bottom end face of the base is coplanar with the bottom end face of the rectangular protrusion. The top of the base is the first straight edge, the top of the first straight edge is the first arcuate portion, the bottom of the first arcuate portion is the second straight edge, the bottom of the base is the third straight edge, and the bottom of the third straight edge is the fourth straight edge.

[0012] By adopting the above technical solution, the base serves as the mounting foundation for the battery cell and is fixedly installed with the fifth rectangular groove. The bottom surface of the base is coplanar with the bottom surface of the rectangular protrusion to ensure the stability of the installation and the consistency of the structure. The one-piece molded structure ensures the integrity and stability of the battery cell structure.

[0013] In a further embodiment, the bottom end of the second straight edge is provided with a folded edge that extends into the groove, and the other end of the fourth straight edge extends to the outside of the insulating shell.

[0014] By adopting the above technical solution, the folded edge at the bottom of the second straight edge, which extends into the groove, can form a more stable lateral limit for the component inserted into the groove, effectively preventing the component from lateral displacement or shaking in the groove, and enhancing the connection reliability of the overall structure. The design of the fourth straight edge extending to the outside of the insulating shell provides a convenient operating interface and connection point for the connection between the external circuit or other components and the structure, making it easier to connect with external systems, improving the convenience of assembly and the practicality of the overall device.

[0015] In a further embodiment, the left and right ends of the rear end of the insulating shell are symmetrically provided with integrally formed triangular protrusions, the axis of the triangular protrusions is vertically arranged, the left end of the rear end face of the insulating shell is provided with a mounting groove, the axis of the mounting groove is vertically arranged, and the top and bottom of the mounting groove are completely open.

[0016] By adopting the above technical solution, the symmetrically arranged integrally formed triangular protrusions at both ends of the rear end of the insulating shell can effectively enhance the structural strength and stability of the rear end of the shell, prevent deformation of the rear end of the shell, and ensure the accuracy of installation. At the same time, the specific position setting of the mounting groove can form a precise fit with other components, ensuring the compactness and functionality of the overall device.

[0017] In summary, this utility model has the following beneficial effects: 1. The use of triangular and rectangular protrusions enables rapid positioning and installation. 2. The design of the first rectangular groove and the triangular protrusion can prevent incorrect installation. 3. The design of the insulating shell, rectangular protrusions, and fifth rectangular groove enables rapid heat dissipation and prevents dust from contacting the battery cell. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model, used to illustrate the connection relationship between the insulating shell and the rectangular protrusion; Figure 2 This is a cross-sectional view used in this utility model to illustrate the connection between the battery cell and the fifth rectangular groove structure.

[0019] In the figure, 1 is the insulating shell; 2 is the cylindrical protrusion; 3 is the rectangular protrusion; 4 is the first rectangular groove; 5 is the second rectangular groove; 6 is the third rectangular groove; 7 is the fourth rectangular groove; 8 is the fifth rectangular groove; 9 is the first straight edge; 10 is the first arc part; 11 is the second straight edge; 12 is the base; 13 is the third straight edge; 14 is the fourth straight edge; and 15 is the mounting groove. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0022] Example 1: like Figures 1-2 As shown, a small-pitch miniaturized rectangular electrical connector includes an insulating shell 1. The top of the insulating shell 1 is completely open. The bottom of the insulating shell 1 has symmetrically arranged integrally formed cylindrical protrusions 2 at both ends. The axis of the cylindrical protrusions 2 is arranged vertically. An integrally formed rectangular protrusion 3 is arranged inside the insulating shell 1. The axis of the rectangular protrusion 3 is collinear with the axis of the insulating shell 1. There is a gap between the rectangular protrusion 3 and the insulating shell 1. A triangular groove is provided on the front end face of the insulating shell 1. The axis of the triangular groove is arranged left and right. The front end face and the bottom end face of the triangular groove are completely open.

[0023] A first rectangular groove 4 is provided at the top left end of the rectangular protrusion 3. The axis of the first rectangular groove 4 is vertically set, and the top and bottom of the first rectangular groove 4 are completely open, as is the left end face of the first rectangular groove 4. A second rectangular groove 5 is provided at the top right end of the rectangular protrusion 3. The axis of the second rectangular groove 5 is vertically set, and the top and bottom of the second rectangular groove 5 are completely open, as is the right end face of the second rectangular groove 5. A third rectangular groove 6 is provided at the top left end of the rectangular protrusion 3. The axis of the third rectangular groove 6 is vertically set, and the third rectangular groove 6 is connected to the first rectangular groove 4. A fourth rectangular groove 7 is provided at the top right end of the rectangular protrusion 3. The axis of the fourth rectangular groove 7 is vertically set, and the fourth rectangular groove 7 is connected to the second rectangular groove 5.

[0024] Multiple fifth rectangular grooves 8 are symmetrically arranged at the front and rear ends of the rectangular protrusion 3. The axis of the fifth rectangular groove 8 is vertically arranged. The top and bottom of the fifth rectangular groove 8 are completely open. A battery cell is fixedly installed inside the fifth rectangular groove 8.

[0025] The battery cell is integrally formed from a first straight edge 9, a first arc portion 10, a second straight edge 11, a base 12, a third straight edge 13, and a fourth straight edge 14. The base 12 is fixedly installed with the fifth rectangular groove 8. The bottom end face of the base 12 is coplanar with the bottom end face of the rectangular protrusion 3. The top of the base 12 is the first straight edge 9, the top of the first straight edge 9 is the first arc portion 10, the bottom of the first arc portion 10 is the second straight edge 11, the bottom of the base 12 is the third straight edge 13, and the bottom of the third straight edge 13 is the fourth straight edge 14.

[0026] The bottom end of the second straight edge 11 is provided with a folded edge that extends into the groove, and the other end of the fourth straight edge 14 extends to the outside of the insulating shell 1.

[0027] The insulating housing 1 has integrally formed triangular protrusions symmetrically arranged on the left and right ends of the rear end. The axis of the triangular protrusions is vertically arranged. The left end of the rear end face of the insulating housing 1 has a mounting groove 15. The axis of the mounting groove 15 is vertically arranged. The top and bottom of the mounting groove 15 are completely open.

[0028] Specific implementation process: The battery cell is fixedly installed in the fifth rectangular slot 8, and the device is installed with its corresponding connector terminal. Since the triangular protrusion plays a foolproof role, it should be inserted carefully and slowly during installation to avoid impact that could damage the battery cell.

[0029] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A small-pitch miniaturized rectangular electrical connector, characterized in that: The device includes an insulating shell (1), the top of which is completely open. The bottom of the insulating shell (1) has symmetrically arranged integral cylindrical protrusions (2) at both ends. The axis of the cylindrical protrusions (2) is vertically arranged. The insulating shell (1) has an integrally formed rectangular protrusion (3) inside. The axis of the rectangular protrusion (3) is collinear with the axis of the insulating shell (1). There is a gap between the rectangular protrusion (3) and the insulating shell (1). The front end face of the insulating shell (1) is provided with a triangular groove. The axis of the triangular groove is arranged left and right. The front end face and the bottom end face of the triangular groove are completely open.

2. The small-pitch miniaturized rectangular electrical connector according to claim 1, characterized in that: The rectangular protrusion (3) has a first rectangular groove (4) at the top left end. The axis of the first rectangular groove (4) is vertical. The top and bottom of the first rectangular groove (4) are completely open. The left end face of the first rectangular groove (4) is completely open. The rectangular protrusion (3) has a second rectangular groove (5) at the top right end. The axis of the second rectangular groove (5) is vertical. The top and bottom of the second rectangular groove (5) are completely open. The right end face of the second rectangular groove (5) is completely open. The rectangular protrusion (3) has a third rectangular groove (6) at the top left end. The axis of the third rectangular groove (6) is vertical. The third rectangular groove (6) is connected to the first rectangular groove (4). The rectangular protrusion (3) has a fourth rectangular groove (7) at the top right end. The axis of the fourth rectangular groove (7) is vertical. The fourth rectangular groove (7) is connected to the second rectangular groove (5).

3. The small-pitch miniaturized rectangular electrical connector according to claim 1, characterized in that: The rectangular protrusion (3) has multiple fifth rectangular grooves (8) symmetrically arranged at its front and rear ends. The axis of the fifth rectangular groove (8) is vertically arranged. The top and bottom of the fifth rectangular groove (8) are completely open. A battery cell is fixedly installed inside the fifth rectangular groove (8).

4. A small-pitch miniaturized rectangular electrical connector according to claim 3, characterized in that: The battery cell is integrally formed from a first straight edge (9), a first arc part (10), a second straight edge (11), a base (12), a third straight edge (13), and a fourth straight edge (14). The base (12) is fixedly installed with the fifth rectangular groove (8). The bottom end face of the base (12) is coplanar with the bottom end face of the rectangular protrusion (3). The top of the base (12) is the first straight edge (9), the top of the first straight edge (9) is the first arc part (10), the bottom of the first arc part (10) is the second straight edge (11), the bottom of the base (12) is the third straight edge (13), and the bottom of the third straight edge (13) is the fourth straight edge (14).

5. A small-pitch miniaturized rectangular electrical connector according to claim 4, characterized in that: The bottom end of the second straight edge (11) is provided with a folded edge that extends into the groove, and the other end of the fourth straight edge (14) extends to the outside of the insulating shell (1).

6. A small-pitch miniaturized rectangular electrical connector according to claim 1, characterized in that: The insulating shell (1) has symmetrically arranged integrally formed triangular protrusions at the left and right ends of the rear end. The axis of the triangular protrusions is vertically arranged. The left end of the rear end face of the insulating shell (1) is provided with an installation groove (15). The axis of the installation groove (15) is vertically arranged. The top and bottom of the installation groove (15) are completely open.

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