A non-enclosed fisheye structure connector

Abstract

The present application relates to a non-enclosed fisheye structure connector, which relates to the technical field of connectors, and comprises a crimping shoulder and a fisheye insertion structure, wherein the fisheye insertion structure comprises a first fisheye insertion portion and an abutment strip, wherein two ends of the first fisheye insertion portion are respectively fixedly connected to one side of the crimping shoulder and one end of the abutment strip, wherein the abutment strip is bent in a direction close to the crimping shoulder, and an abutment portion is fixedly arranged at the end of the abutment strip away from the first fisheye insertion portion; a fixed notch is provided on the crimping shoulder for the abutment portion to be inserted and swung, and an open gap exists between the abutment portion and the first fisheye insertion portion; when the abutment portion rotates in a direction close to the abutment strip, the open gap is reduced until one side of the abutment portion can abut against the inner wall of the fixed notch; the present application forms an ideal state of low insertion force and high holding force through the open arrangement of the connector, which is easy to install and has better reliability.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a non-enclosed fisheye structure connector. Background Art

[0002] Pressfit technology, as an innovative mechanical connection solution, has shown significant advantages in the field of electronic component assembly. Its core lies in providing a direct installation method without soldering, effectively avoiding the limitations of traditional soldering or pin connection methods. This technology cleverly uses the precise fit between the fisheye plug-in and the PCB board hole to achieve a high-strength clamping effect by applying slight pressure. In this process, the fisheye plug-in undergoes elastic deformation with its unique arc design, which not only ensures low contact resistance, but also greatly improves the stability and reliability of the connection.

[0003] In the related art, refer to Figure 1 and Figure 2 A closed fisheye type connector comprises a crimping shoulder 3 and a fisheye elastic insertion part 4 fixed on the crimping shoulder 3, wherein the outer side surface of the fisheye elastic insertion part 4 is an arc surface, and a fisheye inner hole 41 with a fisheye-shaped cross section is opened on the fisheye elastic insertion part 4; when the fisheye elastic insertion part 4 is inserted into the hole on the PCB board, the outer side surface of the fisheye elastic insertion part 4 is compressed to produce elastic deformation, so that the cross-sectional size of the fisheye inner hole 41 is reduced.

[0004] However, in the actual process of pressing into the hole of the PCB board, the force mode of the plug-in is close to the simply supported beam model, which directly leads to the need to increase the retention force to ensure the high reliability of the connection. The increase in retention force is often accompanied by a significant increase in insertion force. Excessive insertion force not only increases the difficulty of operation, but also easily causes unfavorable phenomena such as inadequate pressing and damage to the edge of the plug-in (such as broken feet), thereby affecting the quality and efficiency of the overall connection. There is room for improvement. Summary of the invention

[0005] The purpose of the present application is to provide a non-enclosed fisheye structure connector to solve the problem in the above-mentioned related art that in order to have a larger holding force, the fisheye type connector may not be pressed into place and the edge may be damaged during the insertion process.

[0006] The non-enclosed fisheye structure connector provided in this application adopts the following technical solution:

[0007] A non-closed fisheye structure connector, including a crimping shoulder and a fisheye insertion structure, the fisheye insertion structure including a fisheye first insertion part and an abutment strip, the two ends of the fisheye first insertion part are respectively fixedly connected to one side of the crimping shoulder and one end of the abutment strip, the abutment strip is bent in a direction close to the crimping shoulder, and an abutment portion is fixedly arranged at the end of the abutment strip away from the fisheye first insertion part; a fixed notch is provided on the crimping shoulder for the abutment portion to be inserted and swung, and an open gap exists between the abutment portion and the fisheye first insertion part; when the abutment portion rotates in a direction close to the abutment strip, the open gap is reduced until one side of the abutment portion can abut against the inner wall of the fixed notch.

[0008] By adopting the above technical solution, due to the matching arrangement of the abutment portion and the fixed notch, when the connector is used, the first fisheye insertion portion and the abutment strip are first preliminarily inserted into the corresponding insertion hole, and the outer side surfaces of the abutment strip and the first fisheye insertion portion are compressed and contracted inward until one side of the abutment portion abuts against the inner wall of one side of the fixed notch; when the connector continues to be inserted until it is fully inserted, the outer side surfaces of the abutment strip and the first fisheye insertion portion continue to be compressed, so that the abutment portion is tightly pressed against the inner wall of the fixed notch; through the open arrangement of the connector, an ideal state of low insertion force and high holding force is formed, which is easy to install and has better reliability.

[0009] Optionally, a locking protrusion is fixedly provided on the side of the abutment strip away from the first insertion portion of the fisheye.

[0010] By adopting the above technical solution, when the fisheye insertion structure is fully inserted into the corresponding plug-in hole, the locking protrusion can be used to further increase the clamping force between the abutment strip and the inner wall of the hole; and a sudden sense of frustration can be generated when the connector is inserted, which can be used to determine whether the connector is plugged in place.

[0011] Optionally, a clearance notch is provided on the side of the first fisheye insertion portion away from the abutment strip, and the clearance notch is arranged at the connecting corner between the first fisheye insertion portion and the crimping shoulder.

[0012] By adopting the above technical solution, the cross-sectional size of the connection between the first insertion part of the fisheye and the crimping shoulder can be reduced, thereby making way for the fisheye insertion structure when it is fully inserted into the corresponding plug-in hole, reducing the possibility that the fisheye insertion structure cannot be fully inserted into the corresponding plug-in hole, thereby improving its performance.

[0013] Optionally, an abutment protrusion is fixedly provided on the side of the abutment strip facing the first insertion portion of the fisheye, and the abutment protrusion can be tightly abutted against the side of the first insertion portion of the fisheye facing the abutment strip.

[0014] By adopting the above technical solution, during the process of inserting the connector into the corresponding plug-in hole, the abutment portion first abuts against the inner wall of the fixed notch, and then when the connector continues to be inserted into the hole, one side of the abutment protrusion abuts against one side of the first insertion portion of the fisheye. The abutment protrusion is used to tension the abutment strip and the first insertion portion of the fisheye, so that the outer side surfaces of the abutment strip and the first insertion portion of the fisheye maintain sufficient abutment force against the inner wall of the corresponding plug-in hole, thereby reducing the possibility of the connector being loosened again after the plug-in is completed.

[0015] Optionally, the inner wall of one side of the fixed notch is flush with the side of the fisheye first insertion portion facing the abutment strip, and the abutment portion is a first abutment clip fixed at the end of the abutment strip and bent toward the fisheye first insertion portion.

[0016] By adopting the above technical solution, due to the bending setting of the first abutment strip, when the fisheye insertion structure is inserted into the corresponding plug-in hole, the end of the first abutment strip can be pre-tightened against the inner wall of the fixed notch, so that the outer side surfaces of the abutment strip and the first insertion part of the fisheye are kept sufficient against the inner wall of the corresponding plug-in hole, thereby reducing the looseness of the connector after the plug-in is completed.

[0017] Optionally, a first extending protrusion is fixedly provided on the end edge of the first abutting clamping strip away from the abutting strip, and the first extending protrusion is bent toward the side of the crimping shoulder and extends into the fixing notch.

[0018] By adopting the above technical solution, due to the setting of the first extending protrusion, the rotational travel of the abutment strip during the application process is limited. When the connector is inserted into the inner wall of the plug-in hole, one side of the first extending protrusion can simultaneously abut against the inner wall of the fixed notch, thereby increasing the corresponding abutment area and improving the stability in the abutment state.

[0019] Optionally, the abutment portion is a second abutment strip extending into the fixed notch, one side of the second abutment strip is flush with the side of the abutment strip facing the first insertion portion of the fisheye, and the end of the second abutment strip can abut against the bottom side of the fixed notch.

[0020] By adopting the above technical solution, due to the setting of the second abutment strip, when the fisheye insertion structure is fully inserted into the corresponding plug-in hole, one side of the second abutment strip is pressed against the inner wall of the fixed notch, and at the same time, the end of the second abutment strip can be pressed against the bottom side of the fixed notch, thereby improving the abutment stability of the abutment portion when the connector is in a fully inserted state.

[0021] Optionally, a second extending protrusion is fixedly provided on the end edge of the second abutting clamping strip away from the abutting strip, the second extending protrusion is bent in a direction away from the first insertion portion of the fisheye, and one side of the second extending protrusion can abut against the inner wall of the fixed notch.

[0022] By adopting the above technical solution, when the fisheye insertion structure is fully inserted into the corresponding plug-in hole, due to the setting of the second extension protrusion, one side of the second extension protrusion can abut against the inner wall of the fixed notch, thereby further improving the abutment stability of the abutment portion when the connector is in a fully inserted state.

[0023] Optionally, a second fisheye insertion portion is fixedly provided on the side of the first fisheye insertion portion facing the abutment strip, and the second fisheye insertion portion is located at the connecting corner of the first fisheye insertion portion and the crimping shoulder.

[0024] By adopting the above technical solution, due to the setting of the second fisheye insertion part, the second fisheye insertion part can be used to strengthen the connection strength between the first fisheye insertion part and the crimping shoulder, reducing the possibility of cracks or damage at the connection between the first fisheye insertion part and the crimping shoulder.

[0025] Optionally, a pre-insertion guide portion is provided on the side of the connection between the first insertion portion of the fisheye and the abutment strip away from the crimping shoulder, and the outer side surface of the pre-insertion guide portion is an arc surface.

[0026] By adopting the above technical solution, the pre-insertion guide portion can not only play a guiding role in the process of inserting into the plug hole, but also strengthen the structural strength of the connection between the first fisheye insertion portion and the abutment strip.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The opening setting of the connector creates an ideal state of low insertion force and high retention force, which is easy to install and has better reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the structure of a closed fisheye type connector fixed on a PBC board in the background art;

[0031] Figure 2 It is a schematic diagram of the overall structure of a closed fisheye type connector in the background technology;

[0032] Figure 3 This is a schematic diagram of the structure of the embodiment 1 of the present application, which embodies the installation and cooperation of the crimping shoulder and the fisheye insertion structure;

[0033] Figure 4 This is a schematic diagram of the structure of the embodiment 1 of the present application when the plug-in component is initially inserted into the corresponding plug-in hole;

[0034] Figure 5 This is a schematic diagram of the structure of the embodiment 1 of the present application when the plug-in component is fully inserted into the corresponding plug-in hole;

[0035] Figure 6 This is a simulated force analysis diagram of Example 1 of the present application when the connector is initially inserted into the corresponding plug hole;

[0036] Figure 7 This is a simulated force analysis diagram of Example 1 of the present application when the connector is fully inserted into the corresponding plug hole;

[0037] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present application, which embodies the installation and cooperation of the crimping shoulder and the fisheye insertion structure;

[0038] Fig. 9 This is a schematic diagram of the structure of the embodiment 2 of the present application when the plug-in component is initially inserted into the corresponding plug-in hole;

[0039] Fig.10 This is a schematic diagram of the structure of Example 2 of the present application when the connector is fully inserted into the corresponding connector hole.

[0040] In the figure, 1. crimping shoulder; 11. fixing notch; 2. fisheye insertion structure; 21. first fisheye insertion part; 211. clearance notch; 212. second fisheye insertion part; 22. abutment strip; 221. locking protrusion; 222. abutment bump; 23. abutment part; 231. first abutment clamping strip; 232. first extension bump; 233. second abutment clamping strip; 234. second extension bump; 24. pre-insertion guide; 3. crimping shoulder; 4. fisheye elastic insertion part; 41. fisheye inner hole. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with all the accompanying drawings. Example

[0042] Reference Figure 3 A non-enclosed fisheye structure connector, comprising a crimping shoulder 1 and a fisheye insertion structure 2, wherein the fisheye insertion structure 2 comprises a fisheye first insertion portion 21 and an abutment strip 22, the two ends of the fisheye first insertion portion 21 are respectively integrally formed with one side of the crimping shoulder 1 and one end of the abutment strip 22, the abutment strip 22 is bent toward the crimping shoulder 1, and the fisheye first insertion portion 21 and the abutment strip 22 have elastic deformation properties as a whole, and an abutment portion 23 is fixedly arranged at the end of the abutment strip 22 away from the fisheye first insertion portion 21;

[0043] A fixed notch 11 is provided on the crimping shoulder 1 for the abutment portion 23 to be inserted and swung, and there is an open gap between the abutment portion 23 and the first fisheye insertion portion 21; when the abutment portion 23 rotates toward the abutment strip 22, the open gap is reduced, and one side of the abutment portion 23 can abut against the inner wall of the fixed notch 11.

[0044] When the connector is in use, the first insertion portion 21 of the fisheye and the abutment strip 22 are inserted into the corresponding insertion holes, and the two are compressed and move in a direction close to each other. At the same time, the abutment portion 23 swings in the fixed notch 11, and the opening gap is reduced at this time until one side of the abutment portion 23 is tightly pressed against the inner wall of one side of the fixed notch 11, and then the outer side surfaces of the abutment strip 22 and the first insertion portion 21 of the fisheye continue to be stressed and compressed inward, and finally the connector is installed.

[0045] Reference Figure 4 and Figure 5 The inner wall of one side of the fixed notch 11 is flush with the side of the first fisheye insertion portion 21 facing the abutment strip 22, wherein the abutment portion 23 is a first abutment clip 231 fixed at the end of the abutment strip 22 and bent toward the first fisheye insertion portion 21, and a first extension protrusion 232 is fixed on the end edge of the first abutment clip 231 away from the abutment strip 22, and the first extension protrusion 232 is bent toward the side of the crimping shoulder 1 and extends into the fixed notch 11; wherein the abutment strip 22, the first abutment clip 231 and the first extension protrusion 232 are bent and formed as a whole.

[0046] Reference Figure 4 and Figure 5 A locking protrusion 221 is integrally formed on the side of the abutment strip 22 away from the first fisheye insertion part 21. When the fisheye insertion structure 2 is fully inserted into the corresponding plug-in hole, the abutment force between the abutment strip 22 and the inner wall of the hole can be further increased by setting the locking protrusion; at the same time, during the plug-in process, due to the setting of the locking protrusion 221, a sudden sense of frustration can be generated, which can be used to judge whether the connector is plugged in place.

[0047] Reference Figure 4 and Figure 5 A clearance notch 211 is provided on the side of the first fisheye insertion portion 21 away from the abutment strip 22, and the clearance notch 211 is arranged at the connecting corner between the first fisheye insertion portion 21 and the crimping shoulder 1; due to the setting of the clearance notch 211, the cross-sectional size of the connection between the first fisheye insertion portion 21 and the crimping shoulder 1 is reduced, thereby reducing the possibility that the fisheye insertion structure 2 cannot be fully inserted into the corresponding plug-in hole, thereby improving its performance.

[0048] Reference Figure 4 and Figure 5An abutment protrusion 222 is integrally formed on the side of the abutment strip 22 facing the first fisheye insertion part 21, wherein the abutment protrusion 222 can be pressed against the side of the first fisheye insertion part 21 facing the abutment strip 22; during the process of inserting the connector into the corresponding plug-in hole, the abutment part 23 first presses against the inner wall of the fixed notch 11, and then when the connector continues to be inserted into the hole, one side of the abutment protrusion 222 presses against one side of the first fisheye insertion part 21, which is used to tension the abutment strip 22 and the first fisheye insertion part 21, so that the outer side surfaces of the abutment strip 22 and the first fisheye insertion part 21 maintain sufficient pressing force against the inner wall of the corresponding plug-in hole.

[0049] Reference Figure 4 and Figure 5 A pre-insertion guide portion 24 is integrally formed on the side of the connection between the first insertion portion 21 of the fisheye and the abutment strip 22 away from the crimping shoulder 1, and the outer side surface of the pre-insertion guide portion 24 is an arc surface; the pre-insertion guide portion 24 can not only play a guiding role during the insertion process of the plug-in hole, but also strengthen the structural strength of the connection between the first insertion portion 21 of the fisheye and the abutment strip 22.

[0050] Reference Figure 6 and Figure 7 When the connector is inserted into the corresponding connector hole, the simulated force analysis diagram during the insertion process is shown in the corresponding figure.

[0051] The implementation principle of the embodiment of the present application is:

[0052] When the connector is used, the first fisheye insertion portion 21 and the abutment strip 22 are initially inserted into the corresponding insertion hole, and the outer side surfaces of the abutment strip 22 and the first fisheye insertion portion 21 are compressed and contracted inward until one side of the first abutment strip 231 is tightly abutted against the inner wall of one side of the fixing notch 11;

[0053] Continue to apply force to insert the fisheye insertion structure 2 into the corresponding plug-in hole, and the outer side surfaces of the abutment strip 22 and the first fisheye insertion portion 21 continue to be pressurized, so that one side of the abutment protrusion 222 is pressed against one side of the first fisheye insertion portion 21, and at the same time, one side of the first extension protrusion 232 is pressed against the inner wall of the fixed notch 11, so that the first extension protrusion 232 moves toward the bottom side of the fixed notch 11. Example

[0054] Reference Figure 8 , Fig. 9 and Fig.10The difference between the embodiment of the present application and the embodiment 1 is that the abutting portion 23 is a second abutting clip 233 extending to the inside of the fixed notch 11, and one side of the second abutting clip 233 is flush with the side of the abutting strip 22 facing the first fisheye insertion portion 21; the second abutting clip 233 is fixedly provided with a second extending protrusion 234 at the end edge away from the abutting strip 22, and the second extending protrusion 234 is bent in a direction away from the first fisheye insertion portion 21;

[0055] After the fisheye insertion structure 2 is fully inserted into the corresponding plug-in hole, the end of the second abutment strip 233 can abut against the bottom side of the fixed notch 11, and one side of the second extension protrusion 234 can abut against the inner wall of the fixed notch 11; the abutment strip 22, the second abutment strip 233 and the second extension protrusion 234 are integrally processed and formed.

[0056] Reference Figure 8 and Fig. 9 A fisheye second insertion portion 212 is integrally formed on the side of the fisheye first insertion portion 21 facing the abutment strip 22, wherein the fisheye second insertion portion 212 is located at the connecting corner of the fisheye first insertion portion 21 and the crimping shoulder 1, and is used to strengthen the connection strength between the fisheye first insertion portion 21 and the crimping shoulder 1, and reduce the possibility of cracks or damage at the connection between the fisheye first insertion portion 21 and the crimping shoulder 1.

[0057] The implementation principle of the embodiment of the present application is:

[0058] When the connector is fully inserted into the corresponding plug-in hole, one side of the abutting protrusion 222 is pressed against one side of the first fisheye insertion portion 21, one side of the second abutting clamping strip 233 is pressed against the inner wall of the fixed notch 11, and one side of the second extending protrusion 234 is pressed against the bottom side of the fixed notch 11; and through the setting of the second fisheye insertion portion 212, the connection strength between the first fisheye insertion portion 21 and the crimping shoulder 1 is enhanced.

[0059] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0060] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A non-enclosed fisheye structure connector, characterized in that: The fisheye insertion structure (2) comprises a crimping shoulder (1) and a fisheye insertion structure (2), wherein the fisheye insertion structure (2) comprises a first fisheye insertion portion (21) and an abutment strip (22), wherein two ends of the first fisheye insertion portion (21) are respectively fixedly connected to one side of the crimping shoulder (1) and one end of the abutment strip (22), wherein the abutment strip (22) is bent in a direction close to the crimping shoulder (1), and an abutment portion (23) is fixedly provided at the end of the abutment strip (22) away from the first fisheye insertion portion (21); The crimping shoulder (1) is provided with a fixed notch (11) for the abutting portion (23) to be inserted and swung, and an opening gap exists between the abutting portion (23) and the first fisheye insertion portion (21); when the abutting portion (23) rotates in a direction close to the abutting strip (22), the opening gap is reduced until one side of the abutting portion (23) is able to abut against the inner wall of the fixed notch (11); The abutment portion (23) is a second abutment clip (233) extending into the interior of the fixed notch (11), one side of the second abutment clip (233) is flush with the side of the abutment strip (22) facing the first fisheye insertion portion (21), and the end of the second abutment clip (233) can abut against the bottom side of the fixed notch (11); A second extending protrusion (234) is fixedly provided on the end edge of the second abutting clamping strip (233) away from the abutting strip (22); the second extending protrusion (234) is bent in a direction away from the first fisheye insertion portion (21); and one side of the second extending protrusion (234) is capable of abutting against the inner wall of the fixed notch (11).

2. A non-enclosed fisheye structure connector according to claim 1, characterized in that: A locking protrusion (221) is fixedly provided on the side of the abutment strip (22) away from the first fisheye insertion portion (21).

3. The non-enclosed fisheye structure connector according to claim 1, characterized in that: A clearance notch (211) is provided on the side of the first fisheye insertion portion (21) away from the abutment strip (22), and the clearance notch (211) is arranged at the connecting corner between the first fisheye insertion portion (21) and the crimping shoulder (1).

4. The non-enclosed fisheye structure connector according to claim 1, characterized in that: An abutment protrusion (222) is fixedly provided on the side of the abutment strip (22) facing the first fisheye insertion part (21), and the abutment protrusion (222) can be tightly abutted against the side of the first fisheye insertion part (21) facing the abutment strip (22).

5. The non-enclosed fisheye structure connector according to claim 1, characterized in that: A fisheye second insertion portion (212) is fixedly provided on the side of the fisheye first insertion portion (21) facing the abutment strip (22), and the fisheye second insertion portion (212) is located at the connecting corner between the fisheye first insertion portion (21) and the crimping shoulder (1).

6. The non-enclosed fisheye structure connector according to claim 1, characterized in that: A pre-insertion guide portion (24) is provided on the side of the connection between the first fisheye insertion portion (21) and the abutment strip (22) away from the crimping shoulder portion (1), and the outer side surface of the pre-insertion guide portion (24) is an arc surface.

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