Wiring terminal female joint

Abstract

The utility model provides a wiring terminal female head, which comprises a wiring section and a plugging section connected with the wiring section, two sides of the wiring section are respectively provided with an insulating holding sheet and a conductor holding sheet in sequence towards the plugging section, the plugging section comprises a first bottom wall and first side walls which are formed by bending two sides of the first bottom wall upwards, the first top walls are positioned at the tops of the first side walls, are bent towards each other and are close to each other, so that the section of the inserting section is square; one end, far away from the wiring section, of the first bottom wall of the plugging section is provided with a contact piece which is bent upwards and then obliquely extends towards the inner cavity of the plugging section, and the tail end of the contact piece and the first top wall of the plugging section are arranged at a gap; the shaping hoop sleeve comprises a second bottom wall, a second side wall which is positioned on one side of the second bottom wall and is bent upwards, a third side wall which is positioned on the other side of the second bottom wall and is bent upwards, and a second top wall which is positioned on the top of the third side wall, is bent towards the direction of the second side wall and is close to the second side wall; and the section of the shaping hoop sleeve is square, and the shaping hoop sleeve is sleeved outside the insertion section. The utility model has the advantages of not only ensuring the electrical contact performance, but also ensuring the overall strength and stability.

Description

Technical Field

[0001] The utility model relates to the field of terminal blocks, and particularly to a female terminal block. Background Art

[0002] Female terminal blocks are often formed by punching and bending metal sheets. When designing, the elastic force of the elastic member needs to be considered, and at the same time, problems such as the overall strength, the effective elastic range of the elastic member, and assembly anti-disengagement also need to be considered. Therefore, it will greatly affect the design difficulty, use reliability and service life of the female terminal block. Content of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide a female terminal block that can not only ensure the electrical contact performance but also ensure the overall strength and stability.

[0004] In view of the above problems, the following technical solution is provided: A female terminal block includes a wiring section and a plugging section connected to the wiring section. On both sides of the wiring section, an insulating holding piece and a conductor holding piece are sequentially arranged in the direction of the plugging section. The plugging section includes a first bottom wall, first side walls bent upward on both sides of the first bottom wall, and first top walls bent toward each other and approaching at the top of the first side walls, so that the cross-section of the plugging section is in a square shape; at one end of the first bottom wall of the plugging section away from the wiring section, there is a contact piece that is bent upward and extends obliquely toward the inner cavity of the plugging section, and the end of the contact piece is arranged at a gap with the first top wall of the plugging section; it further includes a shaping hoop. The shaping hoop includes a second bottom wall, a second side wall bent upward on one side of the second bottom wall, a third side wall bent upward on the other side of the second bottom wall, and a second top wall bent toward the second side wall and approaching at the top of the third side wall. The cross-section of the shaping hoop is in a square shape and is sleeved outside the plugging section.

[0005] In the above structure, the insulating holding piece is used to hold the insulating layer of the wire during wiring; the conductor holding piece is used to hold the conductor of the wire during wiring; the contact piece is used as an elastic member to match with the male head; since the plugging section is integrally formed by bending, when matching with the male head, it will deform under the elastic force of the contact piece and the overall shows a tendency to expand. Therefore, a shaping hoop made of stainless steel by stamping and bending is sleeved outside to improve the constraint effect on the overall shape of the plugging section.

[0006] The utility model is further arranged such that a first elastic groove is opened in the direction of the wiring section at one end of the first bottom wall away from the wiring section, and the first elastic groove divides the contact piece into two at the central position of the contact piece; a second elastic groove is opened in the direction of the wiring section at one end of the first side wall away from the wiring section.

[0007] In the above structure, the contact piece is split into two pieces through the first elastic groove to improve the reliability and stability of electrical contact. At the same time, the first elastic groove can weaken the strength of the first bottom wall, so that when the contact piece and the male plug are compressed and deformed, a certain amount of elastic deformation can occur between the contact piece and the first bottom wall, making the strength transition between the contact piece and the first bottom wall smoother and avoiding stress concentration. The opening of the second elastic groove can cause a certain degree of expansion between the first bottom wall and the first top wall when the contact piece and the male plug are compressed and deformed, improving the accommodation degree of the male plug between the contact piece and the first top wall.

[0008] The present utility model is further configured such that a third elastic groove is provided at the joint of the first bottom wall and the first side wall; a fourth elastic groove is provided at the joint of the first side wall and the first top wall.

[0009] In the above structure, the third elastic groove and the fourth elastic groove can reduce the rigidity at the bending part, making the elastic yielding of the contact piece more linear and reducing the possibility of plastic deformation of the contact piece exceeding its yield strength during use.

[0010] The present utility model is further configured such that the end of the first top wall far from the wiring section is provided with an outwardly turned guiding edge.

[0011] In the above structure, the guiding edge is used to guide the insertion of the male plug.

[0012] The present utility model is further configured such that the first top wall is provided with a yielding and replenishing surface that is pressed closer to the first bottom wall by stamping, so as to form an elastic gap between it and the second top wall.

[0013] In the above structure, when the male plug is inserted, the yielding and replenishing surface and the contact piece jointly contact the male plug, and the yielding and replenishing surface can assist in increasing the elastic compensation distance between the yielding and replenishing surface and the contact piece through elastic yielding.

[0014] The present utility model is further configured such that the second top wall is provided with an anti - detachment elastic piece whose one end is upturned towards the wiring section by stamping.

[0015] In the above structure, the female head of the terminal needs to be installed in the plug housing and fixed by the anti - detachment elastic piece; the anti - detachment elastic piece is separately provided on the shaping hoop sleeve to separate it from the traditional integrated setting, effectively avoiding the influence of setting the anti - detachment elastic piece on the strength, elasticity or electrical performance of the plugging section or the wiring section.

[0016] The present utility model is further configured such that the height of the second side wall is higher than that of the third side wall, and the joint of the second top wall and the second side wall is butt - joined by laser spot welding.

[0017] In the above structure, the height of the second side wall is higher than that of the third side wall, which is convenient for positioning and welding.

[0018] The present utility model is further configured such that the second bottom wall, the second side wall, the third side wall, and the second top wall are provided with an inwardly turned anti - detachment edge; one end of the insertion section away from the wiring section is located inside the anti - detachment edge.

[0019] In the above structure, the anti - detachment edge is used to block and position the insertion section, preventing the insertion section from coming out of the shaping ferrule sleeve when the male connector is inserted or removed.

[0020] The present utility model is further configured such that one side of the second bottom wall facing the wiring section is provided with a support surface that is pressed towards the second top wall by stamping so as to be in contact with the first bottom wall.

[0021] In the above structure, a gap is formed between the second bottom wall and the first bottom wall through the support surface in contact with the first bottom wall, providing space for the expansion of the second elastic groove.

[0022] The present utility model is further configured such that the first bottom wall and the first side wall of the insertion section are bridged with the wiring section; the second bottom wall, the second side wall, and the third side wall of the shaping ferrule sleeve extend towards the wiring section, and inwardly - turned covering ears that cover the upper side edge of the first side wall are provided at the top positions of the second side wall and the third side wall.

[0023] In the above structure, the covering ears are bent to cover the upper side edge of the first side wall, realizing the fixation of the shaping ferrule sleeve.

[0024] The beneficial effects of the present utility model: The insulating clip is used to hold the insulating layer of the wire during wiring; the conductor clip is used to hold the conductor of the wire during wiring; the contact piece, as an elastic member, is used to match with the male connector; since the insertion section is integrally formed by bending, when matching with the male connector, it will deform under the elastic force of the contact piece and show an overall unfolding trend. Therefore, a shaping ferrule sleeve made of stainless steel by stamping and bending is sleeved outside, thereby enhancing the constraint effect on the overall shape of the insertion section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic three - dimensional structure diagram of the whole of the present utility model.

[0026] Figure 2 It is a schematic three - dimensional structure diagram of the whole of the present utility model in full - section.

[0027] Figure 3 It is a schematic three - dimensional structure diagram of the first - perspective explosion of the present utility model.

[0028] Figure 4 It is a schematic three - dimensional structure diagram of the first - perspective explosion in full - section of the present utility model.

[0029] Figure 5 It is a schematic three - dimensional structure diagram of the second - perspective explosion of the present utility model.

[0030] Figure 6 It is a schematic diagram of the fully cutaway three-dimensional structure of the utility model from the second perspective of explosion.

[0031] Meaning of the numbers in the figure: 10-wiring section; 11-insulating sheet; 12-conductor sheet; 20-plug-in section; 21-first bottom wall; 211-contact sheet; 212-first elastic groove; 22-first side wall; 221-second elastic groove; 222-third elastic groove; 223-fourth elastic groove; 23-first top wall; 231-guiding edge; 232-supply surface; 30-shaping hoop; 31-second bottom wall; 311-supporting surface; 32-second side wall; 33-third side wall; 34-second top wall; 341-anti-slip spring sheet; 35-laser spot welding; 36-anti-slip edge; 37-covering ear. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] refer to Figures 1 to 6 ,like Figures 1 to 6 The female connector of the wiring terminal shown in the figure comprises a wiring section 10 and a plug section 20 connected to the wiring section 10, wherein both sides of the wiring section 10 are provided with insulating sheets 11 and conductor sheets 12 in sequence in the direction of the plug section 20, and the plug section 20 comprises a first bottom wall 21, first side walls 22 formed by bending upwards on both sides of the first bottom wall 21, and a first top wall 23 bent toward each other and close to each other at the top of the first side wall 22, so that the cross section of the plug section 20 is in the shape of a square; the first bottom wall 21 of the plug section 20 is provided with a bent back end at one end away from the wiring section 10 A contact piece 211 extends obliquely toward the inner cavity of the plug-in section 20, and the end of the contact piece 211 is set with a gap between it and the first top wall 23 of the plug-in section 20; it also includes a shaping hoop 30, the shaping hoop 30 includes a second bottom wall 31, a second side wall 32 bent upward on one side of the second bottom wall 31, a third side wall 33 bent upward on the other side of the second bottom wall 31, and a second top wall 34 bent toward and close to the second side wall 32 at the top of the third side wall 33. The shaping hoop 30 has a U-shaped cross-section and is sleeved outside the plug-in section 20.

[0034] In the above structure, the insulating clamp 11 is used to clamp the insulating layer of the wire during wiring; the conductor clamp 12 is used to clamp the conductor of the wire during wiring; the contact 211 is used as an elastic member to adapt to the male head; since the plug-in section 20 is formed by bending as a whole, it will be deformed under the elastic force of the contact 211 when adapting to the male head, resulting in an overall expansion trend, so a shaping clamp 30 formed by stamping and bending of stainless steel is sleeved on the outside to enhance the restraining effect on the overall shape of the plug-in section 20.

[0035] In this embodiment, the end of the first bottom wall 21 away from the wiring segment 10 is provided with a first elastic groove 212 opened in the direction of the wiring segment 10, and the first elastic groove 212 divides the contact piece 211 into two at the center position; the end of the first side wall 22 away from the wiring segment 10 is provided with a second elastic groove 221 opened in the direction of the wiring segment 10.

[0036] In the above structure, the contact piece 211 is divided into two pieces by the first elastic groove 212 to improve the reliability and stability of the electrical contact; at the same time, the first elastic groove 212 can weaken the strength of the first bottom wall 21, so that when the contact piece 211 and the male plug are deformed by pressure, a certain amount of elastic deformation can be generated with the first bottom wall 21, so that the strength transition between the contact piece 211 and the first bottom wall 21 is smoother, avoiding stress concentration; the opening of the second elastic groove 221 can cause a certain degree of expansion between the first bottom wall 21 and the first top wall 23 when the contact piece 211 and the male plug are deformed by pressure, thereby improving the accommodation degree of the male plug between the contact piece 211 and the first top wall 23.

[0037] In this embodiment, a third elastic groove 222 is defined at a joint between the first bottom wall 21 and the first side wall 22 ; a fourth elastic groove 223 is defined at a joint between the first side wall 22 and the first top wall 23 .

[0038] In the above structure, the third elastic groove 222 and the fourth elastic groove 223 can reduce the rigidity of the bending part, making the elastic concession of the contact piece 211 more linear, and reducing the possibility of the contact piece 211 exceeding its own yield strength and causing plastic deformation during use.

[0039] In this embodiment, an end of the first top wall 23 away from the connecting section 10 is provided with an outwardly turned guiding edge 231 .

[0040] In the above structure, the guide edge 231 is used to guide the male plug to be inserted.

[0041] In this embodiment, the first top wall 23 is provided with a yield supply surface 232 which is pressed toward the first bottom wall 21 to form an elastic gap between the first top wall 23 and the second top wall 34 .

[0042] In the above structure, when the male plug is inserted, the retreat supply surface 232 and the contact piece 211 contact the male plug together, and the retreat supply surface 232 can assist in increasing the elastic compensation distance between the retreat supply surface 232 and the contact piece 211 by elastic retreat.

[0043] In this embodiment, the second top wall 34 is provided with an anti-dropping elastic piece 341 , one end of which is bent toward the connecting segment 10 by stamping.

[0044] In the above structure, the female terminal head needs to be installed inside the plug housing and fixed by the anti - detachment elastic piece 341; the anti - detachment elastic piece 341 is separately arranged on the shaping hoop 30 to separate it from the traditional integrated setting, effectively avoiding the influence of the anti - detachment elastic piece 341 on the strength, elasticity or electrical performance of the insertion section 20 or the wiring section 10.

[0045] In this embodiment, the height of the second side wall 32 is higher than that of the third side wall 33, and the intersection of the second top wall 34 and the second side wall 32 is butt - jointed by laser spot welding 35.

[0046] In the above structure, the height of the second side wall 32 is higher than that of the third side wall 33, which is convenient for positioning and welding.

[0047] In this embodiment, the second bottom wall 31, the second side wall 32, the third side wall 33, and the second top wall 34 are provided with an in - turned anti - detachment edge 36; one end of the insertion section 20 far from the wiring section 10 is located inside the anti - detachment edge 36.

[0048] In the above structure, the anti - detachment edge 36 is used to block and provide positioning for the insertion section 20, avoiding the insertion section 20 from slipping out of the shaping hoop 30 when the male head is inserted and pulled out.

[0049] In this embodiment, on the side of the second bottom wall 31 facing the wiring section 10, there is a support surface 311 that is pressed towards the second top wall 34 by stamping so as to be in contact with the first bottom wall 21.

[0050] In the above structure, through the support surface 311 in contact with the first bottom wall 21, a gap is formed between the second bottom wall 31 and the first bottom wall 21, providing space for the expansion of the second elastic groove 221.

[0051] In this embodiment, the first bottom wall 21 and the first side wall 22 of the insertion section 20 are bridged with the wiring section 10; the second bottom wall 31, the second side wall 32, and the third side wall 33 of the shaping hoop 30 extend towards the wiring section 10, and at the top positions of the second side wall 32 and the third side wall 33, there are in - turned covering ears 37 that cover the upper side edge of the first side wall 22.

[0052] In the above structure, the covering ear 37 covers the upper side edge of the first side wall 22 by bending, realizing the fixation of the shaping hoop 30.

[0053] Advantages of the present utility model: The insulating clamping piece 11 is used to clamp the insulating layer of the wire during wiring; the conductor clamping piece 12 is used to clamp the conductor of the wire during wiring; the contact piece 211 is used as an elastic part to match with the male head; since the whole insertion section 20 is formed by bending, it will deform under the elastic force of the contact piece 211 when matching with the male head, resulting in an overall unfolding trend. Therefore, a shaping hoop 30 made of stainless steel by stamping and bending is sleeved outside to improve the constraint effect on the overall shape of the insertion section 20.

[0054] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of the present technology, without departing from the technical principle of the present utility model, several improvements and modifications can be made. These improvements and modifications made under the above assumptions should also be regarded as the protection scope of the present utility model.

Claims

1. A female terminal, comprising a wiring section (10) and a plug section (20) connected to the wiring section (10), wherein both sides of the wiring section (10) are provided with insulating wrapping pieces (11) and conductor wrapping pieces (12) in sequence in a direction toward the plug section (20), characterized in that: The plug-in section (20) comprises a first bottom wall (21), first side walls (22) formed by bending upwards on both sides of the first bottom wall (21), and a first top wall (23) bent toward each other and brought close to each other on the top of the first side wall (22), so that the cross section of the plug-in section (20) is in the shape of a square. An end of the first bottom wall (21) of the plug-in section (20) away from the wiring section (10) is provided with a contact piece (211) that bends upwards and extends obliquely toward the inner cavity of the plug-in section (20), and the end of the contact piece (211) is connected to the plug-in section (2 0) is provided with a gap; and further comprises a shaping hoop (30), the shaping hoop (30) comprising a second bottom wall (31), a second side wall (32) formed by bending upwards on one side of the second bottom wall (31), a third side wall (33) formed by bending upwards on the other side of the second bottom wall (31), and a second top wall (34) formed by bending toward and approaching the second side wall (32) at the top of the third side wall (33); the shaping hoop (30) has a U-shaped cross section and is sleeved outside the plug-in section (20).

2. A female terminal according to claim 1, characterized in that: An end of the first bottom wall (21) away from the wiring section (10) is provided with a first elastic groove (212) opened in the direction of the wiring section (10), and the first elastic groove (212) divides the contact piece (211) into two at the center of the contact piece (211); and an end of the first side wall (22) away from the wiring section (10) is provided with a second elastic groove (221) opened in the direction of the wiring section (10).

3. The female terminal block according to claim 1, characterized in that: A third elastic groove (222) is provided at the joint between the first bottom wall (21) and the first side wall (22); and a fourth elastic groove (223) is provided at the joint between the first side wall (22) and the first top wall (23).

4. The female terminal block according to claim 1, characterized in that: An end of the first top wall (23) away from the wiring section (10) is provided with an outwardly turned guiding edge (231).

5. The female terminal block according to claim 1, characterized in that: The first top wall (23) is provided with a yield supply surface (232) which is moved toward the first bottom wall (21) by stamping so as to form an elastic gap between the first top wall (23) and the second top wall (34).

6. A female terminal according to claim 1 or 5, characterized in that: The second top wall (34) is provided with an anti-dropping spring sheet (341) whose one end is tilted toward the connecting section (10) by stamping.

7. The female terminal block according to claim 1, characterized in that: The second side wall (32) is higher than the third side wall (33), and the second top wall (34) and the second side wall (32) are butt-jointed at their junction by laser spot welding (35).

8. The female terminal block according to claim 1, characterized in that: The second bottom wall (31), the second side wall (32), the third side wall (33) and the second top wall (34) are provided with an inwardly turned anti-slip edge (36); an end of the plug-in section (20) away from the wiring section (10) is located inside the anti-slip edge (36).

9. The female terminal block according to claim 2, characterized in that: A support surface (311) is provided on a side of the second bottom wall (31) facing the connecting section (10), which is moved toward the second top wall (34) by stamping so as to be in contact with the first bottom wall (21).

10. The female terminal block according to claim 1, characterized in that: The first bottom wall (21) and the first side wall (22) of the plug-in section (20) are bridged with the wiring section (10); the second bottom wall (31), the second side wall (32) and the third side wall (33) of the shaping hoop (30) extend toward the wiring section (10), and a covering ear (37) is provided at the top of the second side wall (32) and the third side wall (33) to cover the upper side of the first side wall (22).

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