Female terminal and connector
By designing a female terminal including the inner core and the shell, using the method of clamping and increasing friction, the signal interruption caused by loosening and falling of the pin is solved, and a more stable electrical connection is achieved.
Patent Information
- Application Number
- CN202421828061.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In existing connectors, the pins inserted into the female terminal are prone to loosening and falling off, resulting in signal interruption.
A female terminal is designed, including an inner core and an outer shell, which consists of a body, a first shrapnel and a second shrapnel. After insertion, the pin can be clamped between the first shrapnel and the second shrapnel, and the friction between the shell and the inner core is increased to prevent the pin from loosening and falling off.
It effectively prevents the pin from loosening and falling off, improves the signal stability of the connector, and avoids the problem of signal interruption.
Smart Images
Figure CN222851689U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of terminal structures, in particular to a female terminal and a connector. Background Art
[0002] Connectors are accessories that achieve electrical connection. With the increasing degree of industrial automation and the increasingly stringent and precise requirements for industrial control, the use of connectors has gradually increased. Connectors generally include male terminals and female terminals, where the pins of the male terminals can be inserted into the female terminals to achieve electrical connection.
[0003] However, in the prior art, the pins inserted into the female terminals are prone to loosening and falling off, which may cause signal interruption in the connector. Utility Model Content
[0004] The utility model aims to provide a female terminal and a connector to solve the problem that a pin inserted into the female terminal is prone to loosening and falling off, thereby causing the connector to be prone to signal interruption.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a female terminal, comprising:
[0007] The inner core comprises a body, a first spring sheet and a second spring sheet, wherein a first opening is arranged on one side of the body, the first spring sheet and the second spring sheet are arranged on a side of the body away from the first opening, and the first spring sheet and the second spring sheet are arranged opposite to each other, and a channel for inserting a pin of a male terminal is formed between the first spring sheet and the second spring sheet, and the channel is connected with the first opening; and
[0008] The shell is sleeved on the outer circumference of the body, the side of the first spring sheet away from the second spring sheet and the side of the second spring sheet away from the first spring sheet are both in contact with the shell, and the pin can apply pressure to the first spring sheet and the second spring sheet.
[0009] Preferably, the middle part of the first spring sheet is bent toward the second spring sheet to form a first contact, one end of the first spring sheet away from the body abuts against the shell, the middle part of the second spring sheet is bent toward the first spring sheet to form a second contact, one end of the second spring sheet away from the body abuts against the shell, and the pin can contact the first contact and the second contact.
[0010] Preferably, one end of the first spring sheet away from the main body is bent toward a side away from the second spring sheet to form a first protrusion, and the first spring sheet abuts against the shell through the first protrusion, and one end of the second spring sheet away from the main body is bent toward a side away from the first spring sheet to form a second protrusion, and the second spring sheet abuts against the shell through the second protrusion.
[0011] Preferably, the female terminal further comprises a clamping structure, and the clamping structure is configured to clamp the inner core into the outer shell.
[0012] Preferably, the snap-fit structure includes a first snap buckle and a snap hole, one of the first snap buckle and the snap hole is arranged on the shell, the other of the first snap buckle and the snap hole is arranged on the body, and the first snap buckle is accommodated in the snap hole.
[0013] Preferably, a second opening is provided on the shell, and the second opening is provided on the same side as the first opening. The snap-fit structure includes a first slot and a second buckle. The first slot is provided on the body and is located on a side of the body close to the first opening, and the first slot extends along an extension direction of the first opening to be connected with the first opening. The second buckle is provided on the shell and is located at an end of the shell close to the second opening, and the second buckle is accommodated in the first slot.
[0014] Preferably, a second card slot is provided on the housing, the second card slot is located on a side of the second buckle away from the second opening, and a portion of the body is accommodated in the second card slot.
[0015] Preferably, the main body is provided with more than two first card slots, the shell is provided with more than two second buckles, and the more than two second buckles are accommodated in the more than two first card slots one by one.
[0016] Preferably, the main body is provided with a break along one side of a direction perpendicular to both the first direction and the second direction, the first direction is the arrangement direction of the first spring sheet and the second spring sheet, the second direction is the opening direction of the first opening, and the break penetrates the main body along the second direction and a direction perpendicular to both the first direction and the second direction.
[0017] On the other hand, the utility model further provides a connector, comprising a male terminal and the female terminal as described above, wherein the pin of the male terminal can be inserted into the female terminal through the first opening.
[0018] Beneficial effects of the utility model:
[0019] In the utility model, when the pin of the male terminal is inserted into the female terminal, the pin can expand outward to support the first spring sheet and the second spring sheet. On the one hand, the pin can be clamped between the first spring sheet and the second spring sheet, and the first spring sheet and the second spring sheet can prevent the pin from loosening and falling off. On the other hand, the friction between the outer shell and the inner core is increased, thereby further preventing the pin from loosening and falling off from the inside of the female terminal, thereby preventing the connector from being easily interrupted by signals. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of a connector in an embodiment of the utility model;
[0021] Figure 2 yes Figure 1 A partial enlarged view of the middle A;
[0022] Figure 3 It is a structural schematic diagram of the inner core in the embodiment of the utility model;
[0023] Figure 4 It is a schematic diagram of the structure of the housing in the embodiment of the utility model;
[0024] Figure 5 is a top view of the connector in the embodiment of the utility model;
[0025] Figure 6 is along Figure 5 Sectional view along the midline BB;
[0026] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle.
[0027] In the figure:
[0028] 1. Inner core; 11. Main body; 111. First opening; 112. Accommodating hole; 113. Fracture; 12. First spring piece; 121. First contact; 122. First protrusion; 13. Second spring piece; 131. Second contact; 132. Second protrusion; 14. Channel; 2. Shell; 21. Second opening; 22. Second slot; 31. First buckle; 32. Buckle hole; 33. First slot; 34. Second buckle. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0032] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0033] This embodiment provides a connector, which includes a male terminal and a female terminal. The pin of the male terminal can be inserted into the female terminal to achieve electrical connection.
[0034] See also Figures 1 to 7 In the present embodiment, the female terminal comprises an inner core 1 and an outer shell 2, wherein the inner core 1 comprises a body 11, a first spring sheet 12 and a second spring sheet 13, a first opening 111 is arranged on one side of the body 11, the first spring sheet 12 and the second spring sheet 13 are both arranged on a side of the body 11 away from the first opening 111, and the first spring sheet 12 and the second spring sheet 13 are arranged opposite to each other, a channel 14 for inserting a pin of the male terminal is formed between the first spring sheet 12 and the second spring sheet 13, the channel 14 is connected to the first opening 111, and the outer shell 2 is sleeved on the outer periphery of the body 11, and a side of the first spring sheet 12 facing away from the second spring sheet 13 and a side of the second spring sheet 13 facing away from the first spring sheet 12 are both in contact with the outer shell 2.
[0035] It can be understood that the housing 2 is provided with a second opening 21, which is located at the end of the housing 2, and is provided on the same side as the first opening 111, so that the first opening 111 is exposed, and the pin of the male terminal can be inserted into the inner core 1 through the first opening 111, and the end of the male terminal away from the female terminal and the end of the housing 2 away from the second opening 21 are respectively used to electrically connect with the power supply and related functional modules, or the end of the male terminal away from the female terminal and the end of the housing 2 away from the second opening 21 are respectively used to electrically connect with different functional modules. The pin can apply pressure to the first spring sheet 12 and the second spring sheet 13, that is, the pin can apply pressure to the first spring sheet 12 in a direction away from the second spring sheet 13, and can apply pressure to the second spring sheet 13 in a direction away from the first spring sheet 12, so that the first spring sheet 12 and the second spring sheet 13 are buckled on the housing 2.
[0036] Based on the above, in the present embodiment, after the pin of the male terminal is inserted into the female terminal, the pin can expand outwardly to support the first spring piece 12 and the second spring piece 13. On the one hand, the pin can be clamped between the first spring piece 12 and the second spring piece 13. The first spring piece 12 and the second spring piece 13 can prevent the pin from loosening and falling off. On the other hand, the friction between the outer shell 2 and the inner core 1 is increased, thereby further preventing the pin from loosening and falling off from the inside of the female terminal, thereby preventing the connector from being prone to signal interruption.
[0037] Furthermore, the middle part of the first spring piece 12 is bent toward the second spring piece 13 to form a first contact 121, and the end of the first spring piece 12 away from the body 11 abuts against the shell 2, and the middle part of the second spring piece 13 is bent toward the first spring piece 12 to form a second contact 131, and the end of the second spring piece 13 away from the body 11 abuts against the shell 2, and the pin can contact the first contact 121 and the second contact 131, that is, in this embodiment, the first spring piece 12 and the second spring piece 13 are both arc-shaped, thereby ensuring that the first spring piece 12 and the second spring piece 13 can clamp the pin more effectively, and can ensure that when the pin is inserted into the female terminal, the first spring piece 12 and the second spring piece 13 can have better contact with the shell 2, thereby ensuring that the electrical connection between the female terminal and the male terminal is more reliable.
[0038] In addition, the end of the first spring piece 12 away from the body 11 is bent toward the side away from the second spring piece 13, and a first protrusion 122 is formed. The first spring piece 12 is in contact with the shell 2 through the first protrusion 122, and the end of the second spring piece 13 away from the body 11 is bent toward the side away from the first spring piece 12, and a second protrusion 132 is formed. The second spring piece 13 is in contact with the shell 2 through the second protrusion 132. That is, in this embodiment, the end of the first spring piece 12 away from the body 11 and the end of the second spring piece 13 away from the body 11 are also arc-shaped, which can further ensure that when the pin is inserted into the female terminal, the first spring piece 12 and the second spring piece 13 can have better contact with the shell 2, thereby further ensuring that the electrical connection between the female terminal and the male terminal is more reliable.
[0039] Furthermore, in this embodiment, the female terminal also includes a snap-in structure, which is configured to snap the inner core 1 into the outer shell 2, thereby preventing the inner core 1 from loosening and falling off from the inside of the outer shell 2, thereby preventing the connector from experiencing signal interruption due to unreliable contact between the inner core 1 and the outer shell 2.
[0040] Based on the above, in this embodiment, the snap-fit structure includes a first snap 31 and a snap hole 32, wherein the snap hole 32 is arranged on the outer shell 2, and correspondingly, the first snap 31 is arranged on the main body 11, and the first snap 31 is accommodated in the snap hole 32, so that the inner core 1 is clamped in the outer shell 2, thereby preventing the inner core 1 from loosening and falling off from the inside of the outer shell 2.
[0041] Specifically, the inner core 1 can be inserted into the outer shell 2 through the second opening 21, and a accommodating hole 112 is provided on the main body 11. The accommodating hole 112 extends along the arrangement direction of the first spring sheet 12 and the second spring sheet 13 and penetrates the main body 11. The first buckle 31 is integrally formed on the hole wall of the accommodating hole 112 on the side away from the first opening 111 along the opening direction of the first opening 111. The first buckle 31 is inclined toward the outside of the main body 11 on the side close to the first opening 111 along the opening direction of the first opening 111. When the inner core 1 is inserted into the outer shell 2 through the second opening 21, the end wall of the outer shell 2 can press the first buckle 31, so that the first buckle 31 swings toward the inside of the main body 11 around the part where it is connected with the hole wall of the accommodating hole 112. When the first buckle 31 is aligned with the buckle hole 32, the first buckle 31 resumes its deformation and resets, so that the first buckle 31 is accommodated in the buckle hole 32.
[0042] It is worth noting that in this embodiment, the inner core 1 is provided with first clips 31 on both sides of the arrangement direction of the first spring piece 12 and the second spring piece 13. Correspondingly, two clip holes 32 are provided on the outer shell 2. When the inner core 1 is inserted into the outer shell 2, the two first clips 31 are respectively accommodated in the two clip holes 32, so that the inner core 1 can be more firmly clamped in the outer shell 2.
[0043] Of course, in other optional embodiments, the card hole 32 can also be provided on the main body 11, and correspondingly, the first buckle 31 is provided on the housing 2, which is not specifically limited in the present embodiment.
[0044] Furthermore, in the present embodiment, the snap-fit structure also includes a first snap-fit groove 33 and a second snap-fit buckle 34. The first snap-fit groove 33 is arranged on the main body 11 and is located on a side of the main body 11 close to the first opening 111, and the first snap-fit groove 33 extends along the extension direction of the first opening 111 to be connected with the first opening 111. The second snap-fit buckle 34 is arranged on the outer shell 2 and is located at an end of the outer shell 2 close to the second opening 21. The second snap-fit buckle 34 is accommodated in the first snap-fit groove 33. When the inner core 1 is inserted into the outer shell 2, the second snap-fit buckle 34 abuts against a side of the main body 11 away from the first spring sheet 12 and the second spring sheet 13, thereby more firmly clamping the inner core 1 in the outer shell 2, thereby further preventing the inner core 1 from loosening and falling off from the inside of the outer shell 2.
[0045] It can be understood that, based on the content mentioned above, the inner core 1 can be inserted into the outer shell 2 through the second opening 21. During the process of inserting the inner core 1 into the outer shell 2, the staff can expand the second buckle 34 toward the side away from the second buckle 34, so that the main body 11 can enter the outer shell 2. After the main body 11 enters the outer shell 2, the second buckle 34 resumes its deformation and is accommodated in the first slot 33.
[0046] It is worth noting that more than two first card slots 33 are provided on the main body 11, and more than two second card buckles 34 are provided on the outer shell 2. The more than two second card buckles 34 are accommodated in the more than two first card slots 33 one by one, so that the inner core 1 is more firmly clamped in the outer shell 2.
[0047] Illustratively, in this embodiment, the four edges of the body 11 are each provided with a first card slot 33 , and correspondingly, the housing 2 is provided with four second card buckles 34 , which are arranged in one-to-one correspondence with the four first card slots 33 .
[0048] In addition, a second card slot 22 is provided on the shell 2, and the second card slot 22 is located on the side of the second buckle 34 away from the second opening 21. Part of the body 11 is accommodated in the second card slot 22, so that the inner core 1 is more firmly clamped in the shell 2 after the body 11 enters the shell 2.
[0049] Furthermore, a break 113 is provided on one side of the main body 11 along a direction perpendicular to both the first direction and the second direction. The first direction is the arrangement direction of the first spring piece 12 and the second spring piece 13, and the second direction is the opening direction of the first opening 111. The break 113 penetrates the main body 11 along the second direction and a direction perpendicular to both the first direction and the second direction to facilitate the deformation of the main body 11 toward the side close to its inner cavity, thereby facilitating the subsequent removal of the inner core 1 from the main body 11, and further facilitating the subsequent maintenance of the connector.
[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. Female terminal, characterized in that: include: An inner core (1) comprises a body (11), a first spring sheet (12) and a second spring sheet (13); a first opening (111) is arranged on one side of the body (11); the first spring sheet (12) and the second spring sheet (13) are both arranged on a side of the body (11) away from the first opening (111); the first spring sheet (12) and the second spring sheet (13) are arranged opposite to each other; a channel (14) for inserting a pin of a male terminal is formed between the first spring sheet (12) and the second spring sheet (13); the channel (14) is communicated with the first opening (111); and The shell (2) is sleeved on the outer periphery of the body (11); a side of the first spring sheet (12) facing away from the second spring sheet (13) and a side of the second spring sheet (13) facing away from the first spring sheet (12) are both in contact with the shell (2); and the insertion pin can apply pressure to the first spring sheet (12) and the second spring sheet (13).
2. The female terminal according to claim 1, characterized in that: The middle part of the first spring sheet (12) is bent toward the second spring sheet (13) to form a first contact point (121); one end of the first spring sheet (12) away from the body (11) abuts against the shell (2); the middle part of the second spring sheet (13) is bent toward the first spring sheet (12) to form a second contact point (131); one end of the second spring sheet (13) away from the body (11) abuts against the shell (2); and the pin can contact the first contact point (121) and the second contact point (131).
3. The female terminal according to claim 2, characterized in that: One end of the first spring sheet (12) away from the body (11) is bent toward a side away from the second spring sheet (13) to form a first convex point (122), and the first spring sheet (12) is in contact with the housing (2) via the first convex point (122); one end of the second spring sheet (13) away from the body (11) is bent toward a side away from the first spring sheet (12) to form a second convex point (132), and the second spring sheet (13) is in contact with the housing (2) via the second convex point (132).
4. The female terminal according to claim 1, characterized in that: The female terminal further comprises a clamping structure, wherein the clamping structure is configured to clamp the inner core (1) into the outer shell (2).
5. The female terminal according to claim 4, characterized in that: The snap-fit structure comprises a first snap (31) and a snap hole (32); one of the first snap (31) and the snap hole (32) is arranged on the housing (2); the other of the first snap (31) and the snap hole (32) is arranged on the body (11); and the first snap (31) is accommodated in the snap hole (32).
6. The female terminal according to claim 4, characterized in that: The shell (2) is provided with a second opening (21), and the second opening (21) is provided on the same side as the first opening (111). The snap-fit structure comprises a first snap-fit groove (33) and a second snap-fit buckle (34). The first snap-fit groove (33) is provided on the body (11) and is located on a side of the body (11) close to the first opening (111), and the first snap-fit groove (33) extends along an extension direction of the first opening (111) to communicate with the first opening (111). The second snap-fit buckle (34) is provided on the shell (2) and is located at an end of the shell (2) close to the second opening (21), and the second snap-fit buckle (34) is accommodated in the first snap-fit groove (33).
7. The female terminal according to claim 6, characterized in that: The housing (2) is provided with a second slot (22), the second slot (22) being located on a side of the second buckle (34) away from the second opening (21), and part of the body (11) is accommodated in the second slot (22).
8. The female terminal according to claim 6, characterized in that: The body (11) is provided with more than two first card slots (33), the housing (2) is provided with more than two second card buckles (34), and the more than two second card buckles (34) are accommodated in the more than two first card slots (33) one by one.
9. The female terminal according to claim 1, characterized in that: The body (11) is provided with a break (113) along one side of a direction perpendicular to both a first direction and a second direction, the first direction being the arrangement direction of the first spring sheet (12) and the second spring sheet (13), the second direction being the opening direction of the first opening (111), and the break (113) passes through the body (11) along the second direction and a direction perpendicular to both the first direction and the second direction.
10. A connector, characterized in that It comprises a male terminal and a female terminal as claimed in any one of claims 1 to 9, wherein the pin of the male terminal can be inserted into the female terminal through the first opening (111).