Female end connector with clamping force strengthening function

Abstract

The utility model relates to a female end connector with a clamping force strengthening function. The female end connector comprises a carrier and a clamping terminal, the carrier is provided with two conductive plates; the clamping terminal is arranged between the two conductive plates and comprises a base body and two terminal sets. Each terminal group comprises a plurality of elastic arms, each elastic arm is provided with a first arm, a second arm and a bending part connected between the first arm and the second arm, an included angle is formed between the first arm and the second arm, each first arm is connected with the base body, and all the second arms are positioned between the first arms of the two terminal groups; the first arm and the second arm of each elastic arm are respectively provided with a first arched part and a second arched part which are arched in opposite directions; when the plugging terminal is inserted into the clamping terminal, the first arched parts of the two terminal groups are respectively abutted against the conductive plates, and the second arched parts of the two terminal groups are respectively abutted against two opposite surfaces of the plugging terminal. Therefore, the effect of shortening the length of each elastic arm in the insertion direction can be achieved, and the clamping force for clamping the terminal is effectively improved.

Description

Technical Field

[0001] The present application relates to a connector, and in particular to a female connector with a function of enhancing clamping force. Background Art

[0002] Regarding the female socket connection device (such as a terminal block) for corresponding plug-in of the male connection device, multiple female connectors are provided, and two terminal groups are respectively provided on the inner walls of the two conductive clamps of the female connector. Each terminal group includes multiple elastic terminals, and the plug-in terminals of the male connection device are inserted between the two terminal groups along an insertion direction and are elastically clamped by the two terminal groups.

[0003] In order to achieve the elastic clamping function, each elastic terminal is bent at approximately the middle to form an L-shape with an angle much greater than 90 degrees, and the bending directions of the two terminal groups are opposite to each other.

[0004] Although the terminal assembly designed in this way has the ability to elastically clamp the plug-in terminals, these existing elastic terminals are designed to produce the elastic clamping function, which makes them too long in the insertion direction, resulting in a small clamping force and difficulty in clamping the plug-in terminals, which has long been criticized.

[0005] Therefore, how to overcome the above-mentioned shortcomings of the prior art has become a major issue that the inventors of this application are eager to solve. Utility Model Content

[0006] The purpose of this application is to provide a female connector with a function of enhancing clamping force.

[0007] In order to achieve the above-mentioned purpose, the present application provides a female connector with a function of enhancing clamping force, for plugging in a plug-in terminal and comprising: a carrier having two conductive plates; and a clamping terminal, arranged between the two conductive plates and comprising: a base having two outer sides opposite to each other; and two terminal groups, symmetrically connected to the two outer sides respectively, each of the terminal groups comprising a plurality of elastic arms arranged side by side with each other, each of the elastic arms having a first arm, a second arm and a bent portion, one end of the first arm being connected to the outer side, and the bent portion being connected between the other end of the first arm and one end of the second arm. There is an included angle between the first arm and the second arm, and all the second arms of the two terminal groups are located between all the first arms of one of the terminal groups and all the first arms of the other terminal group, and the first arm and the second arm of each elastic arm respectively have a first arched portion and a second arched portion that arch in opposite directions; wherein the plug-in terminal is inserted into the clamping terminal and is elastically clamped between the two terminal groups, the first arched portions of the two terminal groups respectively abut against each of the conductive plates, and the second arched portions of the two terminal groups respectively abut against two opposite surfaces of the plug-in terminal.

[0008] Compared with the previous technology, the present application has the following effects: it can shorten the length of each elastic arm in the insertion direction, thereby effectively improving the clamping force of the clamping terminal, thereby ensuring that the plug-in terminal can be elastically clamped, and also has the effect of reducing the contact impedance value, improving the transmission current stability and being able to transmit large current. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional schematic diagram of the female connector of this application when applied to a terminal block.

[0010] Figure 2 This is a three-dimensional diagram of the clamping terminal in the first embodiment of the female connector of this application.

[0011] Figure 3 This is a perspective exploded view of the first embodiment of the female connector of the present application.

[0012] Figure 4 This is a three-dimensional assembly diagram of the first embodiment of the female connector of this application.

[0013] Figure 5 This is a cross-sectional view of the first embodiment of the female connector of the present application before the plug-in terminal is inserted.

[0014] Figure 6 This is a cross-sectional view of the first embodiment of the female connector of the present application after the plug terminal is inserted.

[0015] Figure 7 This is a three-dimensional diagram of the clamping terminal in the second embodiment of the female connector of the present application.

[0016] Figure 8 This is a perspective exploded view of the second embodiment of the female connector of the present application.

[0017] Figure 9 This is a three-dimensional assembly diagram of the second embodiment of the female connector of the present application.

[0018] Figure 10 This is a cross-sectional view of the second embodiment of the female connector of the present application before the plug-in terminal is inserted.

[0019] Figure 11 This is a cross-sectional view of the second embodiment of the female connector of the present application after the plug terminal is inserted.

[0020] Wherein, the reference numerals:

[0021] 100: Female connector

[0022] 1: Carrier

[0023] 11,12: Conductive plate

[0024] 111,121: limiting ribs

[0025] 3a, 3b: Clamping terminals

[0026] 31,32: Terminal group

[0027] 33,34: Limiting arm

[0028] 35,36: Limiting lugs

[0029] 37: Matrix

[0030] 371: Opening

[0031] 38,39: convex body group

[0032] 900: Plug terminals

[0033] A: Elastic Arm

[0034] A1: First Arm

[0035] A2: Second Arm

[0036] A3: Bending part

[0037] B: convex body

[0038] D1: first arch

[0039] D2: Second arch

[0040] D3: The third arch

[0041] G: Groove

[0042] I: Insertion direction

[0043] T:Terminal block

[0044] T1: jack

[0045] W: width direction DETAILED DESCRIPTION

[0046] The detailed description and technical contents of this application are described below in conjunction with the accompanying drawings. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit this application.

[0047] The present application provides a female connector with a function of enhancing clamping force, which is used in an electrical connection device (for example, Figure 1 The terminal block T shown in FIG. 1 is not limited to the terminal block T. The following description will take the terminal block T as an example). Figures 1 to 6 The first embodiment is shown. Figures 7 to 11 The second embodiment is shown.

[0048] like Figures 2 to 5As shown, the first embodiment of the female connector (referred to as: female connector) 100 with a clamping force enhancement function of the present application is used for inserting a plug terminal 900 so as to elastically clamp the plug terminal 900 and enable the plug terminal 900 and the female connector 100 to be electrically connected to each other. It should be noted that, if Figure 1 A plurality of female connectors 100 are arranged in the terminal block T. The female connector 100 of the present application comprises: a carrier 1 and a clamping terminal 3a.

[0049] The carrier 1 has two conductive plates 11 and 12 spaced apart and arranged side by side. Each conductive plate 11 and 12 has a width and can be configured as follows: Figure 3 A width direction W is defined as shown.

[0050] The clamping terminal 3a is disposed between the two conductive plates 11 and 12. The clamping terminal 3a defines an insertion direction I for the plug-in terminal 900 to be inserted and comprises a base 37 and two terminal groups 31 and 32 symmetrical to each other.

[0051] The base 37 has two opposing outer sides (not labeled), and the two terminal groups 31 and 32 are connected to the two outer sides. Specifically, the two terminal groups 31 and 32 are bent in the same direction relative to the base 37, and the two terminal groups 31 and 32 are arranged side by side across the base 37.

[0052] Each terminal assembly 31, 32 includes multiple elastic arms A spaced apart and arranged side by side in the aforementioned width direction W. Each elastic arm A comprises a first arm A1, a second arm A2, and a bent portion A3. One end of the first arm A1 is connected to the aforementioned outer edge of the base 37, and the bent portion A3 is connected between the other end of the first arm A1 and one end of the second arm A2. The second arm A2 is folded into a V-shape relative to the first arm A1 via the bent portion A3, creating an angle between the folded first and second arms A1 and spaced apart and arranged side by side. Furthermore, between the two terminal assemblies 31, 32, the two second arms A2 in each horizontal row (in a direction parallel to the thickness of the conductive plates 11, 12) are located between the two first arms A1. In addition, the first arm A1 and the second arm A2 of each elastic arm A respectively have a first arched portion D1 and a second arched portion D2 that arch in opposite directions, so that each elastic arm A has two contacts for electrical connection (i.e., contacts that are contacted by the first arched portion D1 and the second arched portion D2).

[0053] It should be noted that if Figure 5 As shown, in the first embodiment of the female connector 100 of the present application, the clamping terminals 3a are sequentially located along the insertion direction I: first, all the bent portions A3 , then the other ends of all the second arms A2 , and finally the base 37 .

[0054] In this way, if Figure 5 and Figure 6 As shown, when the plug terminal 900 is inserted into the clamping terminal 3a of the female connector 100, the plug terminal 900 will be elastically clamped between the two terminal groups 31 and 32. In addition to the first arched portions D1 of the two terminal groups 31 and 32 already elastically abutting against the inner sides of the two conductive plates 11 and 12 to form a first contact point, the second arched portions D2 of the two terminal groups 31 and 32 can also elastically abut against two opposing surfaces of the plug terminal 900 to form a second contact point. The first arched portion D1 and the second arched portion D2 of each elastic arm A are relatively far apart.

[0055] Thus, while each spring arm A still has the basic two contact points, the second arm A2 is bent relative to the first arm A1 by the bend portion A3, shortening the length of each spring arm A in the insertion direction I. This, in turn, increases the clamping force of the clamping terminal 3a, thereby ensuring that the plug terminal 900 can be elastically clamped. This also has the effect of reducing contact impedance, improving transmission current stability, and enabling high current transmission. Furthermore, shortening the length of each spring arm A in the insertion direction I also shortens the size of the female connector 100 in the insertion direction I, thereby reducing the space occupied.

[0056] like Figure 1 As shown, the terminal block T is further provided with a plurality of insertion holes T1 corresponding to each female connector 100 , so that the plug-in terminals 900 can be plugged into the female connector 100 through the insertion holes T1 .

[0057] like Figures 2 to 5 As shown, the clamping terminal 3a further includes a limiting structure (component symbol not shown). The limiting structure includes a plurality of limiting arms 33, 34, each of which has a groove G. Each conductive plate 11, 12 has a side (or "stop edge") facing the insertion direction I. Each limiting arm 33, 34 engages with the aforementioned stop edge of the conductive plate 11, 12 with its groove G to provide a certain fixing effect. Moreover, each limiting arm 33, 34 can also be stopped by the stop edge with its groove G in the insertion direction I, thereby preventing the clamping terminal 3a from shifting in the insertion direction I.

[0058] Specifically, a portion of the limiting arms 33 among the multiple limiting arms 33 and 34 is connected to one of the outer sides of the base 37, and another portion of the limiting arms 34 among the multiple limiting arms 33 and 34 is connected to another outer side of the base 37; moreover, the terminal group 31 is located between a portion of the limiting arms 33 (each limiting arm 33 is side by side with the terminal group 31 in the width direction W), and the terminal group 32 is located between another portion of the limiting arms 34 (each limiting arm 34 is side by side with the terminal group 32 in the width direction W).

[0059] In addition, if Figures 3 to 5 As shown, to limit the position of the clamping terminal 3a, each conductive plate 11, 12 may further have two opposing sides (not labeled) that face each other in the width direction W. One conductive plate 11 has a limiting rib 111 on each of the two opposing sides, while the other conductive plate 12 also has a limiting rib 121 protruding from each of the two opposing sides. The limiting ribs 111, 121 on the two conductive plates 11, 12 protrude toward each other (along the aforementioned thickness direction of the conductive plates 11, 12). In this way, the clamping terminal 3a can be limited in the width direction W by the limiting arms 33, 34 being limited by the limiting ribs 111, 121, thereby preventing the clamping terminal 3a from shifting in the width direction W.

[0060] like Figures 7 to 11 1 is a second embodiment of the female connector 100 of the present application. The second embodiment is substantially the same as the first embodiment, with the difference being that the clamping terminal 3 b is different from that of the first embodiment.

[0061] In the second embodiment, the clamping terminal 3 b also includes a base 37 , two symmetrical terminal groups 31 and 32 , and a limiting structure (not labeled).

[0062] The base 37 defines an opening 371. Two protrusion groups 38 and 39 extend from the base 37 in a direction opposite to the protrusion of the terminal groups 31 and 32, corresponding to the opening 371. Specifically, the base 37 has two opposing inner sides corresponding to the opening 371. The two protrusion groups 38 and 39 are symmetrically connected to the two inner sides. Each protrusion group 38 and 39 includes a plurality of protrusions B spaced apart and arranged side by side. Each protrusion B is bent to form a third arched portion D3 that elastically abuts against the plug terminal 900.

[0063] Therefore, if Figure 10 As shown, in the second embodiment of the female connector 100 of the present application, the clamping terminals 3b are arranged in the following order along the insertion direction I: first, all protrusions B, then the base 37, then the other ends of all second arms A2, and finally, all bent portions A3. In other words, each elastic arm A of the second embodiment is folded into an inverted V shape.

[0064] In this way, if Figure 10 and Figure 11As shown, when the plug terminal 900 is inserted into the female connector 100, the plug terminal 900 will be elastically clamped between the two terminal groups 31, 32 and between the two protrusion groups 38, 39. At this time, in addition to the first arched portions D1 of the two terminal groups 31, 32 originally elastically abutting against the inner sides of the two conductive plates 11, 12 to form the first contact point, the second arched portions D2 of the two terminal groups 31, 32 can also elastically abut against the two opposite surfaces of the plug terminal 900 to form the second contact point, and the third arched portions D3 of the two protrusion groups 38, 39 can also elastically abut against the aforementioned two opposite surfaces of the plug terminal 900 to form the third contact point.

[0065] Thus, the second embodiment not only has all the advantages of the first embodiment, but also improves the contact stability between the clamping terminal 3b and the plug terminal 900 by adding a third contact point, which also facilitates current transmission. In addition, the addition of the third contact point further increases the clamping force of the clamping terminal 3b.

[0066] The aforementioned limiting structure of the clamping terminal 3b includes a plurality of limiting lugs 35 and 36. Specifically, a portion of the limiting lugs 35 and 36 is connected to one outer side of the base 37, and another portion of the limiting lugs 35 and 36 is connected to another outer side of the base 37; moreover, the terminal group 31 is located between a portion of the limiting lugs 35 (each limiting lug 35 is aligned with the terminal group 31 in the width direction W), and the terminal group 32 is located between another portion of the limiting lugs 36 (each limiting lug 36 is aligned with the terminal group 32 in the width direction W).

[0067] As a result, the limiting lugs 35 of the clamping terminal 3b are stopped by the limiting ribs 111 in the insertion direction I, while the limiting lugs 36 are stopped by the limiting ribs 121 in the insertion direction I, thereby preventing the clamping terminal 3b from shifting in the insertion direction I. In addition, the clamping terminal 3b is also restricted in the width direction W by the limiting ribs 111 and 121 for all terminal groups 31 and 32, thereby preventing the clamping terminal 3b from shifting in the width direction W.

[0068] In summary, the female connector with enhanced clamping force function of the present application can indeed achieve the expected purpose and effect, and can solve the shortcomings of the previous technology, so a patent application is filed.

[0069] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the description and drawings of the present application are also included in the scope of the rights of the present application and are hereby stated.

Claims

1. A female connector with enhanced clamping force, used for plugging terminals, characterized in that: include: a carrier having two conductive plates; as well as A clamping terminal is disposed between the two conductive plates and comprises: a base having two outer sides opposite to each other; and Two terminal groups are symmetrically connected to the two outer sides, each terminal group includes a plurality of elastic arms arranged side by side, each elastic arm has a first arm, a second arm and a bent portion, one end of the first arm is connected to the outer side, the bent portion is connected between the other end of the first arm and one end of the second arm, an angle is formed between the first arm and the second arm, and all the second arms of the two terminal groups are located between all the first arms of one terminal group and all the first arms of the other terminal group, and the first arm and the second arm of each elastic arm respectively have a first arched portion and a second arched portion that arch in opposite directions; The plug-in terminal is inserted into the clamping terminal and elastically clamped between the two terminal groups. The first arched portions of the two terminal groups respectively abut against the conductive plates, and the second arched portions of the two terminal groups respectively abut against two opposite surfaces of the plug-in terminal.

2. The female connector with enhanced clamping force according to claim 1, wherein: The clamping terminal defines an insertion direction, and the clamping terminal has all the bending portions and the base in sequence along the insertion direction.

3. The female connector with enhanced clamping force according to claim 2, wherein: The clamping terminal also includes a limiting structure, which includes multiple limiting arms, each of the limiting arms has a groove, each of the conductive plates has a side facing the insertion direction, the side of the conductive plate is accommodated in the groove, and each of the limiting arms is blocked by the side in the groove in the insertion direction.

4. The female connector with enhanced clamping force according to claim 3, wherein: A portion and another portion of the plurality of limit arms are respectively connected to the two outer edges, and the two terminal groups are respectively located between the portion of the plurality of limit arms and side by side with each other and between the another portion of the plurality of limit arms and side by side with each other.

5. The female connector with enhanced clamping force according to claim 3, wherein: The conductive plate is defined in a width direction, and each of the conductive plates also has two opposite sides opposite to each other in the width direction. Each of the conductive plates has a limiting rib on the two opposite sides respectively, and the limiting ribs on the two conductive plates protrude relative to each other. The clamping terminal is limited by each limiting rib in the width direction with each limiting arm.

6. The female connector with enhanced clamping force according to claim 1, wherein: The clamping terminal defines an insertion direction, the base is provided with an opening, and the clamping terminal has the base and all the bending portions in sequence along the insertion direction.

7. The female connector with enhanced clamping force according to claim 6, wherein: The base has two protrusion groups protruding therefrom. The base has two inner sides opposite to each other corresponding to the opening. The two protrusion groups are symmetrically connected to the two inner sides respectively. Each protrusion group includes a plurality of protrusions arranged side by side with each other. Each protrusion has a third arched portion for abutting against the plug-in terminal. The clamping terminal has all the protrusions, the base and all the bent portions in sequence along the insertion direction.

8. The female connector with enhanced clamping force according to claim 6 or 7, characterized in that: The clamping terminal also includes a limiting structure, which includes a plurality of limiting lugs. The conductive plate is defined in a width direction, and each of the conductive plates has two opposite sides opposite to each other in the width direction. Each of the conductive plates has a limiting rib on each of the two opposite sides, and each of the limiting lugs is blocked by the limiting ribs in the insertion direction.

9. The female connector with enhanced clamping force according to claim 8, wherein: The two terminal groups are respectively located between a portion of the plurality of limiting lugs and are arranged side by side with each other, and are located between another portion of the plurality of limiting lugs and are arranged side by side with each other.

10. The female connector with enhanced clamping force according to claim 8, wherein: The limiting ribs on the two conductive plates protrude relative to each other, and the clamping terminals are limited by the limiting ribs in the width direction with all the terminal groups.

11. The female connector with enhanced clamping force according to claim 1, wherein: The first arched portion and the second arched portion of each elastic arm are relatively far away from each other.

12. The female connector with enhanced clamping force according to claim 1, wherein: The two terminal groups are both bent toward the same direction relative to the base and arranged side by side.

13. The female connector with enhanced clamping force according to claim 1, wherein: The second arm of each elastic arm is folded in half relative to the first arm via the bending portion at intervals.

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