A fisheye terminal and connector

Abstract

The application belongs to the field of electrical component manufacturing, and specifically relates to a fisheye terminal and a connector. The fisheye terminal comprises a terminal body and a plug-in part. The plug-in part is a plate-shaped structure with elasticity and an oval shape. The terminal body is fixedly connected to one end of the long axis of the oval plug-in part. The plug-in part is provided with a notch penetrating through two end faces of the oval plate-shaped structure. The geometric center of the notch coincides with the geometric center of the oval. The lower end of the end face of the plug-in part is provided with an inclined surface A. The top end of the inclined surface is between the upper and lower ends of the notch. The distance from the upper end of the inclined surface A to the central axis of the plug-in part is greater than the distance from the lower end of the inclined surface A to the central axis of the plug-in part. The connector is provided with a plug-in groove matched with the fisheye terminal. The application solves the problems of inconvenient assembly and low assembly efficiency caused by the need for welding and fixing during the assembly of the fisheye terminal and the connector.

Description

Technical Field

[0001] This application belongs to the field of electrical component manufacturing, specifically a fisheye terminal and connector. Background Technology

[0002] Existing fisheye terminals, after being inserted into the connector, still require soldering to connect the fisheye terminals and the connector. This ensures a firm connection between the fisheye terminals and the connector and prevents poor contact. However, this method is inconvenient and inefficient during the assembly process of the fisheye terminals and the connector. Summary of the Invention

[0003] The purpose of this application is primarily to address the shortcomings of existing technologies by designing a fisheye terminal with a flexible, elliptical insertion portion. This design enables quick-connect fixation, solving the problems of inconvenient and inefficient assembly caused by the need for soldering during the assembly of the fisheye terminal and connector. Furthermore, this application designs a connector that mates with the fisheye terminal, resulting in a more secure insertion of the fisheye terminal into the connector.

[0004] To achieve the above objectives, the technical solution adopted in this application is: A fisheye terminal includes a terminal body and a plug portion. The plug portion is a flexible, elliptical plate-like structure. The terminal body is fixedly connected to one end of the major axis of the ellipse of the plug portion. The plug portion has a slot penetrating both end faces of the elliptical plate-like structure. The geometric center of the slot coincides with the geometric center of the ellipse. The lower end of the end face of the plug portion has an inclined surface A. The top end of the inclined surface A is between the upper and lower ends of the slot. The distance from the upper end of the inclined surface A to the central axis of the plug portion is greater than the distance from the lower end of the inclined surface A to the central axis of the plug portion.

[0005] Preferably, the length line of the groove is parallel to the major axis of the ellipse.

[0006] Preferably, the distance between the two sidewalls of the terminal body that are perpendicular to the end face of the ellipse is greater than or equal to the length of the minor axis of the ellipse.

[0007] A connector having a slot that mates with the aforementioned insertion portion.

[0008] Preferably, the shape and size of the slot are the same as the external structure of the plug-in part; the shape and size of the upper section of the slot are the same as the shape and size of the lower end of the terminal body; the shape and size of the lower section of the slot are the same as the shape and size of the plug-in part; and the top of the slot is open. When the plug-in part is squeezed in the width direction of the slot, the projection of the plug-in part on the plane perpendicular to the end face of the elliptical structure is A, and the shape and size of the opening of the slot is larger than the shape and size of A. When the plug-in part is not squeezed and is in its normal state, the projection on the plane perpendicular to the end face of the elliptical structure is B, and the shape and size of the opening of the slot is smaller than the shape and size of B.

[0009] Preferably, the slot is further provided with a width expander that mates with the slot opening. When the slot opening contacts the width expander, the width expander causes the minor axis of the ellipse of the insertion part to lengthen.

[0010] Preferably, the width expander includes a rotating shaft, an auxiliary cavity, a support block, and a torsion spring. The auxiliary cavity communicates with the slot, and the length line of the slot's cross-section is L. The opening of the auxiliary cavity communicating with the slot is on the side wall of the slot parallel to L. The lower edge of the opening of the auxiliary cavity communicating with the slot is on the bottom wall of the slot. One end of the support block is rotatably disposed within the auxiliary cavity. The rotating shaft of the support block is parallel to L. The torsion spring is sleeved on the rotating shaft. The two connecting arms of the torsion spring are respectively fixed to the auxiliary cavity and the support block. The other end of the support block extends into the slot through the opening of the auxiliary cavity communicating with the slot. The support block has a vertical through hole and a horizontal through hole in the slot. The two ends of the vertical through hole communicate with the two ends of the horizontal through hole. The axis of the horizontal through hole is parallel to the rotating shaft. A top block is slidably disposed on each side of the vertical through hole in the horizontal through hole. The two opposing sides of the top blocks are... The support block has a slider that is axially slidably connected to the vertical through hole. The lower end of the slider has an inclined surface B, and the distance from the upper end of the inclined surface B to the end of the top block facing away from the vertical through hole is less than the distance from the lower end of the inclined surface B to the end of the top block facing away from the vertical through hole. The support block has an inclined surface C that mates with the two inclined surfaces B. The length of the slider is greater than the length of the vertical through hole. When the insertion part is inserted into the slot and the lower end of the insertion part just touches the upper surface of the support block, there is a gap between the top end of the slider and the inclined surface A. When the insertion part is inserted into the slot and the lower end of the insertion part touches the inner bottom wall of the slot, the distance from the upper end of the slider to the upper end of the inclined surface C is greater than the distance from the lower surface of the support block to the inner top wall of the slot, and the length of the slider is less than the length of the slot. When the upper end of the inclined surface C on the slider penetrates the support block, the distance between the mutually distant sides of the two top blocks is greater than the width of the slot.

[0011] Preferably, the slider has a first groove axially provided on its side wall, the vertical through hole has a first limiting pin with one end inserted into the first groove on its inner side wall, the length of the first groove is greater than the length of the vertical through hole, the top block has a second groove axially provided on its side wall, and the transverse through hole has a second limiting pin with one end inserted into the second groove on its inner side wall.

[0012] Preferably, each of the two top blocks has a raised ridge on its opposite side, and the raised ridge is parallel to the inner bottom wall of the slot.

[0013] Compared with the prior art, this application has the following beneficial effects: 1. This application employs a fisheye terminal with a flexible, elliptical insertion portion, designing a fisheye terminal capable of quick-connect fixation. This solves the problem of inconvenient and inefficient assembly caused by the need for soldering during the assembly of the fisheye terminal and connector. Furthermore, this application designs a connector that mates with the fisheye terminal, making the insertion of the fisheye terminal into the connector more secure.

[0014] 2. In this application, the length line of the slot is parallel to the major axis of the ellipse, so that when the insertion part is squeezed by the slot of the slot, the insertion part is more likely to be squeezed and become thinner, thus making it easier to enter the slot.

[0015] 3. The design of the first sliding groove and the first limiting pin in this application prevents the slider from falling out of the vertical through hole, and the design of the second sliding groove and the second limiting pin prevents the top block from falling out of the horizontal through hole. Meanwhile, as... Figure 4 As shown, the cross-sections of the first limiting pin and the second limiting pin are both rectangular, and the axes of the first limiting pin and the second limiting pin are both parallel to the axis of the support block. This can prevent the slider and the top block from swinging during the sliding process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fisheye terminal in this application; Figure 2 This is a schematic diagram of the structure of the elliptical end face of the insertion part as seen from the front in this application; Figure 3 This is a schematic diagram showing the lower end of the terminal body and the fisheye terminal inserted into the slot of the connector after removing one of the outer shells of the connector in this application; Figure 4 This is a structural schematic diagram showing the rotating shaft, support block, torsion spring, slider, and top block in this application; Figure 5 for Figure 4 The structural diagram on the left; Figure 6 This is a schematic diagram showing the lower end of the terminal body and the fisheye terminal inserted into the connector after removing one of the outer shells of the connector in this application.

[0017] The components are as follows: 1. Terminal body; 2. Insertion part; 3. Connector; 4. Short shaft; 5. Long shaft; 6. Groove; 7. Inclined surface A; 8. Slot; 9. Rotating shaft; 10. Auxiliary cavity; 11. Protrusion; 12. Support block; 13. Torsion spring; 14. Second limiting pin; 15. Inclined surface B; 16. Inclined surface C; 17. Top block; 18. Slider; 19. Vertical through hole; 20. Horizontal through hole; 21. First slide groove; 22. First limiting pin; 23. Second slide groove. Detailed Implementation

[0018] like Figure 1-6 As shown, a fisheye terminal includes a terminal body 1 and a plug-in portion 2. The plug-in portion 2 is a flexible, elliptical plate-like structure. The terminal body 1 is fixedly connected to one end of the major axis 5 of the ellipse of the plug-in portion 2. The plug-in portion 2 has a slot 6 that penetrates the two end faces of the elliptical plate-like structure. The geometric center of the slot 6 coincides with the geometric center of the ellipse. The lower end of the end face of the plug-in portion 2 has an inclined surface A7. The top end of the inclined surface A7 is between the upper and lower ends of the slot 6. The distance from the upper end of the inclined surface A7 to the central axis of the plug-in portion 2 is greater than the distance from the lower end of the inclined surface A7 to the central axis of the plug-in portion 2.

[0019] In this application, the plug part 2 is an elliptical plate-like structure. When the plug part 2 is inserted into the opening of the slot 8 on the connector 3, since the opening of the slot 8 is smaller than the cross-section of the middle section of the ellipse of the plug part 2, the opening of the slot 8 will squeeze and cause the elliptical plate-like structure on the plug part 2 to shrink. Then, the shape and size inside the slot 8 are designed to be consistent with the external shape and size of the plug part 2, so that after the plug part 2 enters into the slot 8, the plug part 2 returns to its normal state from being squeezed by the opening of the slot 8 and fills the interior of the slot 8. In this way, the fisheye terminal is fixed together with the connector. In this embodiment, the slope 7 is designed so that the lower end of the plug part 2 is smaller than the opening of the slot 8, so that the lower end of the plug part 2 can be inserted into the slot 8 first. The slot 6 is designed so that the plug part 2 can shrink when squeezed by the opening of the slot 8. The purpose of aligning the geometric center of the slot 6 with the geometric center of the ellipse is to ensure that the insertion part 2 is subjected to balanced force when compressed, thereby avoiding local breakage due to uneven force.

[0020] As a preferred embodiment, the length line of the slot 6 is parallel to the major axis 5 of the ellipse. This design makes it easier for the insertion part 2 to be squeezed and become thinner when pressed by the slot 8, thus facilitating its insertion into the slot 8.

[0021] As a preferred embodiment, the distance between the two sidewalls of the terminal body 1 perpendicular to the end face of the ellipse is greater than or equal to the length of the minor axis 4 of the ellipse. This design allows the terminal body 1 to have a larger surface area, facilitating the connection of other electrical components. Furthermore, this design serves as a limiting function, preventing damage to the connector 2 caused by the user mistakenly believing it is properly inserted, and also preventing damage to the connector 2 caused by the user continuously applying force when inserting it into the slot 8 if the user mistakenly believes it is not properly inserted.

[0022] A connector 3 has a slot 8 that mates with the aforementioned insertion portion 2. This design allows the connector 3 to be adapted to the aforementioned fisheye terminal.

[0023] As a preferred embodiment, the shape and size of the slot 8 are the same as the external structure of the plug-in part 2. The shape and size of the upper section of the slot 8 are the same as the lower end of the terminal body 1, and the shape and size of the lower section of the slot 8 are the same as the shape and size of the plug-in part 2. The top of the slot 8 is open, so that the plug-in part 2 can better fit with the slot 8 after being inserted into it, thus fixing the fisheye terminal and the connector 8 together. When the plug-in part 2 is pressed in the width direction of the slot 6, the plug-in part 2 is perpendicular to the ellipse. The projection of the end face of the structure onto the plane is A, and the shape and size of the opening of the slot 8 are larger than the shape and size of A. When the insertion part 2 is not compressed and is in its normal state, the projection on the plane perpendicular to the end face of the elliptical structure is B, and the shape and size of the opening of the slot 8 are smaller than the shape and size of B. This design allows the insertion part 2 to return to its normal state after passing through the opening of the slot 8 and entering the slot 8 during the insertion process, thus locking it in the slot 8 and fixing the fisheye terminal to the connector 3. This design provides double fixation, eliminating the need for soldering.

[0024] As a preferred embodiment, the slot 8 is further provided with a width expander that mates with the opening 6. When the opening 6 contacts the width expander, the width expander lengthens the minor axis 4 of the ellipse of the insertion part 2. With this design, the width expander ensures that the arc surface of the elliptical structure of the insertion part 2 is in close contact with the inner arc surface of the slot 8, thereby making the connection between the insertion part 2 and the slot 8 more secure.

[0025] In a preferred embodiment, the width expander includes a rotating shaft 9, an auxiliary cavity 10, a support block 12, and a torsion spring 13. The auxiliary cavity 10 communicates with the slot 8, the length line of the cross-section of the slot 8 is L, the opening of the auxiliary cavity 10 communicating with the slot 8 is on the side wall of the slot 8 parallel to L, and the lower edge of the opening of the auxiliary cavity 10 communicating with the slot 8 is on the bottom wall of the slot 8. One end of the support block 12 is rotatably disposed within the auxiliary cavity 10, the rotating shaft 9 of the support block 12 is parallel to L, and the torsion spring is sleeved on the rotating shaft 9. 13. The two connecting arms of the torsion spring 13 are respectively fixed to the auxiliary cavity 10 and the support block 12. The other end of the support block 12 extends into the slot 8 through the opening of the auxiliary cavity 10 communicating with the slot 8. The support block 12 is provided with a vertical through hole 19 and a horizontal through hole 20 in the slot 8. The two ends of the vertical through hole 19 are connected to the two ends of the horizontal through hole 20. The axis of the horizontal through hole 20 is parallel to the rotation shaft 9. A top block 17 is slidably provided on each side of the vertical through hole 19 in the horizontal through hole 20. The two top blocks 17... 7. Both facing sides are inclined surfaces B15. The distance from the upper end of the inclined surface B15 to the end of the top block 17 facing away from the vertical through hole 19 is less than the distance from the lower end of the inclined surface B15 to the end of the top block 17 facing away from the vertical through hole 19. The support block 12 is provided with a slider 18 that is axially slidably connected to the vertical through hole 19. The lower end of the slider 18 is provided with an inclined surface C16 that cooperates with the two inclined surfaces B5. The length of the slider 18 is greater than the length of the vertical through hole 19. When the insertion part 2 is inserted into the slot 8 and the lower end of the insertion part just touches the slot 8, the insertion part 18 is considered to be in contact with the vertical through hole 19. When the upper surface of the support block is exposed, there is a gap between the top of the slider 18 and the inclined surface A7; when the plug 2 is inserted into the slot 8 and the lower end of the plug contacts the inner bottom wall of the slot 8, the distance from the upper end of the slider 18 to the upper end of the inclined surface C16 is greater than the distance from the lower surface of the support block 12 to the inner top wall of the slot 6, and the length of the slider 18 is less than the length of the slot 6; when the upper end of the inclined surface C16 on the slider 18 penetrates into the support block 12, the distance between the mutually distant sides of the two top blocks 17 is greater than the width of the slot 6.

[0026] With this design, the inclined surface 7 on the insertion part 2 serves to avoid the slider 18. That is, when the insertion part 2 is inserted into the slot 8 and the lower end of the insertion part just touches the upper surface of the support block, the insertion part 2 only contacts the end of the support block 12 facing away from the rotating shaft 9, and does not touch the slider 18 (due to the presence of the inclined surface 7, such as...). Figure 3As shown), when the user continues to apply force to insert the connector 2 into the slot 8, the support block 12 rotates. The rotation of the support block 12 causes the top of the slider 18 to enter the slot 6 first. At the same time, when the user quickly inserts the connector 2 into the slot 8 and the lower end of the connector 2 contacts the inner bottom wall of the slot 8, the support block 12 quickly returns to its original state under the elastic action of the torsion spring 13. At this time, the top of the slot 6 hits the top of the slider 18. Because the distance from the upper end of the slider 18 to the upper end of the inclined surface C16 is greater than the distance from the lower surface of the support block 12 to the inner top wall of the slot 6, the slider 18 presses against the two top blocks 17, causing the two top blocks 17 to move towards the width direction of the slot 6. This allows the elliptical arc surface of the connector 2 to fully contact the inner side wall of the slot 8, thereby making the connection between the connector 2 and the slot 8 more secure.

[0027] As a preferred method, such as Figure 4 and Figure 5 As shown, the slider 18 has a first groove 21 axially arranged on its side wall, and the vertical through hole 19 has a first limiting pin 22 with one end inserted into the first groove 21 on its inner side wall. The length of the first groove 21 is greater than the length of the vertical through hole 19. The top block 17 has a second groove 23 axially arranged on its side wall, and the transverse through hole 20 has a second limiting pin 14 with one end inserted into the second groove 23 on its inner side wall. The design of the first groove 21 and the first limiting pin 22 is to prevent the slider 18 from falling out of the vertical through hole 19, and the design of the second groove 23 and the second limiting pin 14 is to prevent the top block 17 from falling out of the transverse through hole 20. Meanwhile, as... Figure 4 As shown, the cross-sections of the first limiting pin 22 and the second limiting pin 14 are both rectangular, and the axes of the first limiting pin 22 and the second limiting pin 14 are both parallel to the axis of the support block 12. This can prevent the slider 18 and the top block 17 from swinging during the sliding process.

[0028] As a preferred embodiment, each of the two top blocks 17 has a protruding rib 11 on its opposite side, the protruding rib 11 being parallel to the inner bottom wall of the slot 8. The protruding rib 11 is designed to increase the friction between the top blocks 17 and the inner wall of the slot 6.

Claims

1. A fisheye terminal, characterized in that, The device includes a terminal body (1) and a plug-in part (2). The plug-in part (2) is a plate-like structure with elasticity and an elliptical shape. The terminal body (1) is fixedly connected to one end of the major axis (5) of the ellipse of the plug-in part (2). The plug-in part (2) is provided with a slot (6) that penetrates the two end faces of the elliptical plate-like structure. The geometric center of the slot (6) coincides with the geometric center of the ellipse. The lower end of the end face of the plug-in part (2) is provided with an inclined surface A (7). The top end of the inclined surface A (7) is between the upper and lower ends of the slot (6). The distance from the upper end of the inclined surface A (7) to the central axis of the plug-in part (2) is greater than the distance from the lower end of the inclined surface A (7) to the central axis of the plug-in part (2). The distance between the two sidewalls of the terminal body (1) that are perpendicular to the end face of the ellipse is greater than or equal to the length of the minor axis (4) of the ellipse.

2. A fisheye terminal according to claim 1, characterized in that, The length line of the slot (6) is parallel to the major axis (5) of the ellipse.

3. A connector, characterized in that, The connector (3) is provided with a slot (8) that mates with the plug-in portion (2) in claim 1; The shape and size of the slot (8) are the same as the external structure of the plug (2). The shape and size of the upper part of the slot (8) are the same as the shape and size of the lower end of the terminal body (1). The shape and size of the lower part of the slot (8) are the same as the shape and size of the plug (2). The top of the slot (8) is open. When the plug (2) is squeezed in the width direction of the slot (6), the projection of the plug (2) on the plane perpendicular to the end face of the elliptical structure is A. The shape and size of the opening of the slot (8) is larger than the shape and size of A. When the plug (2) is not squeezed and is in a normal state, the projection on the plane perpendicular to the end face of the elliptical structure is B. The shape and size of the opening of the slot (8) is smaller than the shape and size of B.

4. A connector according to claim 3, characterized in that, The slot (8) is also provided with a width expander that cooperates with the slot (6). When the slot (6) contacts the width expander, the width expander makes the short axis (4) of the ellipse of the first insertion part (2) longer.

5. A connector according to claim 4, characterized in that, The width expander includes a rotating shaft (9), an auxiliary cavity (10), a support block (12), and a torsion spring (13). The auxiliary cavity (10) communicates with the slot (8). The length line of the cross-section of the slot (8) is L. The opening of the auxiliary cavity (10) communicating with the slot (8) is on the side wall of the slot (8) parallel to L. The lower edge of the opening of the auxiliary cavity (10) communicating with the slot (8) is on the bottom wall of the slot (8). One end of the support block (12) is rotatably disposed in the auxiliary cavity (10). The rotating shaft (9) of the support block (12) is parallel to L. The torsion spring (13) is sleeved on the rotating shaft (9). The two connecting arms of the torsion spring (13) are respectively fixed to the auxiliary cavity (10) and the support block (12). The other end of the support block (12) extends into the slot (8) through the opening of the auxiliary cavity (10) communicating with the slot (8). The support block (12) is provided with a vertical through hole (19) and a horizontal through hole (20) in the slot (8). The two ends of the vertical through hole (19) are connected to the two ends of the horizontal through hole (20). The axis of the horizontal through hole (20) is parallel to the rotating shaft (9). A top block (17) is slidably provided on each side of the vertical through hole (19) in the horizontal through hole (20). The two top blocks (17) are... The opposing sides are both inclined surfaces B (15). The distance from the upper end of the inclined surface B (15) to the end of the top block (17) facing away from the vertical through hole (19) is less than the distance from the lower end of the inclined surface B (15) to the end of the top block (17) facing away from the vertical through hole (19). The support block (12) is provided with a slider (18) that is axially slidably connected to the vertical through hole (19). The lower end of the slider (18) is provided with an inclined surface C (16) that cooperates with the two inclined surfaces B (5). The length of the slider (18) is greater than the length of the vertical through hole (19). When the insertion part (2) is inserted into the slot (8) and the lower end of the insertion part just touches the slot, the insertion part is considered to be in contact with the slot. When the upper surface of the support block is described, there is a gap between the top of the slider (18) and the inclined surface A (7); when the plug (2) is inserted into the slot (8) and the lower end of the plug contacts the inner bottom wall of the slot (8), the distance from the upper end of the slider (18) to the upper end of the inclined surface C (16) is greater than the distance from the lower surface of the support block (12) to the inner top wall of the slot (6), and the length of the slider (18) is less than the length of the slot (6); when the upper end of the inclined surface C (16) on the slider (18) penetrates into the support block (12), the distance between the mutually distant sides of the two top blocks (17) is greater than the width of the slot (6).

6. A connector according to claim 5, characterized in that, The slider (18) has a first groove (21) axially arranged on its side wall. The vertical through hole (19) has a first limiting pin (22) with one end inserted into the first groove (21) on its inner side wall. The length of the first groove (21) is greater than the length of the vertical through hole (19). The top block (17) has a second groove (23) axially arranged on its side wall. The transverse through hole (20) has a second limiting pin (14) with one end inserted into the second groove (23) on its inner side wall.

7. A connector according to claim 5, characterized in that, Both of the top blocks (17) have protrusions (11) on their opposite sides, and the protrusions (11) are parallel to the inner bottom wall of the slot (8).

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