CN212587723U - Wiring terminal - Google Patents

Abstract

The utility model relates to a wiring terminal, including the terminal groove with be located the terminal inslot shell fragment, the terminal groove is formed with and supplies wire male wire access channel, the shell fragment has the stiff end, removes the end and links up the stiff end respectively and remove the buckle segment of end, the removal end of shell fragment is located the inboard in terminal groove and can remove its characterized in that along the inboard in terminal groove of the external force direction that receives under the state of exerting pressure at the external force, the stiff end of shell fragment is in the same place with the inside wall reciprocal anchorage in terminal groove. The fixing end of the elastic sheet and the inner side wall of the terminal groove are fixed together, so that the elastic sheet can be firmly fixed in the terminal groove, and the clamping effect of the elastic sheet on a lead connected into the terminal groove is further enhanced.

Description

Wiring terminal

Technical Field

The utility model relates to an electric field especially relates to a binding post.

Background

The terminal has been widely used as a common device in the electrical field. A spring plate type terminal using a spring plate to clamp a wire is a common terminal.

Conventional blade terminals typically utilize an insulating material to secure the electrical conductor (or terminal slot) and the clamping device, while individual blade terminals do not have the insulating material to secure the electrical conductor and the clamping device. Due to the structural limitation of the traditional spring plate type wiring terminal, the wire diameter of the wire accessed into the wiring terminal is too small, and the wire access operation of the user aiming at the wire accessed into the terminal is inconvenient, so that the wiring and wire access requirements of most users are difficult to meet.

In addition, due to the uncertainty of the installation position and the installation angle of the spring piece type wiring terminal, the traditional spring piece type wiring terminal is difficult to meet the requirement of connecting wires into the wiring terminal from different directions, and the practical application scene of the wiring terminal is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a shell fragment convenient to press from both sides tight wire is at binding post internal fixation's binding post is provided to above-mentioned prior art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a wire terminal, comprising:

a terminal groove formed with a wire insertion passage into which a wire is inserted;

the elastic sheet is positioned in the terminal groove and is provided with a fixed end, a movable end and a bending section which is respectively connected with the fixed end and the movable end, and the movable end of the elastic sheet is positioned at the inner side of the terminal groove and can move towards the inner side of the terminal groove along the direction of the external force applied under the state of external force pressure;

the elastic piece is characterized in that the fixed end of the elastic piece is fixed with the inner side wall of the terminal groove.

Specifically to this utility model's among the binding post, the stiff end of shell fragment can be for following vertical direction extension, the removal end of shell fragment sets up for the stiff end slope of this shell fragment, and is formed with the contained angle between the removal end of this shell fragment and the bending segment. Wherein, the inside wall of the terminal groove mutually fixed with the fixed end of the elastic sheet also extends along the vertical direction.

As an implementation manner in which the fixed end of the elastic piece and the inner side wall of the terminal groove are fixed to each other, at least one first engaging portion for engaging the fixed end of the elastic piece may be formed on the inner side wall of the terminal groove. Specifically, the first clamping portion clamps the elastic sheet on one side edge of the fixed end of the elastic sheet. As the preferred structure setting form to avoid the stiff end of shell fragment to produce the horizontal hunting, in this utility model's binding post, be formed with two foretell first block portions on the inside wall of terminal groove, these two first block portions block two relative sides of the stiff end of shell fragment respectively, and then strengthen the fastness of shell fragment when the terminal groove is fixed. The side edge of the fixed end of the elastic sheet is clamped by the at least one first clamping part, so that the fixed end of the elastic sheet can be fixed on the inner side wall of the terminal groove.

In order to further enhance the fixing effect of the fixed end of the elastic sheet on the inner side wall of the terminal groove, the fixed end of the elastic sheet and the inner side wall of the terminal groove can be fixed together through the mutually matched buckle structures. For example, a first fastening hole may be formed at the fixing end of the elastic sheet, and a second fastening portion adapted to be fastened into the fastening hole may be formed on the inner side wall of the terminal groove. The second clamping portion may include a first extending portion and a second extending portion extending in different directions to form an included angle, and the first extending portion and the second extending portion respectively penetrate into the first clamping hole and clamp the first clamping hole. Specifically, the fixed end of the elastic sheet can be tightly attached to the inner side wall of the terminal groove (for example, the fixed end of the elastic sheet and the inner side wall of the terminal groove are in the same direction and are in the vertical direction), and the first extending portion and the second extending portion are arranged along the arrangement direction of the fixed end of the elastic sheet in the terminal groove so as to be clamped in the first clamping fixing hole, so that the elastic sheet is prevented from moving in the terminal groove in the up-and-down direction. Through doing this kind of structure setting to the second block portion on the terminal groove inner wall, can make the terminal groove go the first card hole of chucking on the shell fragment stiff end through two extension portions to make the fastening effect between shell fragment stiff end and the terminal inslot wall more firm.

Certainly, the second engaging portion may also form a protruding portion toward the inner side of the terminal groove, and the protruding portion can be inserted into the second engaging portion to be fixed to the first fastening hole.

It should be noted that, the first engaging portion and the second engaging portion can be simultaneously disposed in the connecting terminal of the present invention, so as to prevent the elastic sheet from swinging left and right and moving up and down in the terminal groove, and further enhance the fixing effect of the elastic sheet in the terminal groove.

Of course, as another implementation manner, according to actual needs, a second fastening hole may be formed on the inner side wall of the terminal groove, and a third fastening portion adapted to be fastened into the fastening hole is formed at the fixing end of the elastic sheet. Correspondingly, the third engaging portion may have two extending portions (i.e. a first extending portion and a second extending portion with an included angle) identical to the second engaging portion.

In addition, when the movable end of the elastic sheet is pressed down by using a wire taking tool such as a screwdriver, in order to avoid the screwdriver from crushing the elastic sheet in the terminal, as an improvement, a matching structure for matching the bent section of the elastic sheet to be clamped in can be formed on the terminal groove, and the bent section is positioned on the inner side of the matching structure. Therefore, the bending section of the elastic sheet can be protected by the matching structure of the terminal groove, and the elastic sheet is prevented from being crushed by the screwdriver.

Of course, in order to limit the displacement distance of the elastic sheet in the terminal groove when the elastic sheet is pressed by an external force, an abutting surface for limiting the stroke of the moving end of the elastic sheet moving downwards in the terminal groove can be formed on the inner side wall of the terminal groove. In order to limit the displacement of the movable end of the elastic sheet when the movable end of the elastic sheet is pressed down by force in the terminal groove so as to avoid the influence of the excessive displacement of the elastic sheet on the clamping effect of the connected lead, the improvement is that a limiting boss for limiting the maximum stroke of the movable end of the elastic sheet moving down in the terminal groove is formed on the inner side wall of the terminal groove. Namely, the displacement of the moving end of the elastic sheet is limited by the limiting boss, so that the elastic sheet is prevented from generating excessive displacement.

In addition, can also carry out spacing actual need according to the motion to the tool of getting the line the utility model discloses an among the binding post, the order is located just be on the at least one lateral wall in terminal groove and be on a parallel with shell fragment width direction's position and be formed with the spacing opening of definite tool of getting the line displacement.

In order to facilitate the wire-fetching tool to apply pressure to the elastic sheet so as to fetch the wire connected into the terminal groove, a notch which is positioned on the same side as the limit opening is formed on at least one side edge of the elastic sheet and is close to the moving end.

Further, the utility model discloses an among the binding post, be located just be close to spacing open-ended position on the inside wall in terminal groove and be formed with the bending segment of buckling and extending towards the incision direction of shell fragment, the removal end of shell fragment is located the space that bending segment and wire access passage were injectd.

In another improvement, at least one pair of solder feet are formed on the terminal groove, the pair of solder feet are respectively located on two opposite side walls of the terminal groove, and the pair of solder feet are not symmetrical to each other.

Compared with the prior art, the utility model has the advantages of:

firstly, the fixing end of the elastic sheet and the inner side wall of the terminal groove are mutually fixed together by the connecting terminal of the utility model, so as to ensure that the elastic sheet can be firmly fixed in the terminal groove, and further enhance the clamping effect of the elastic sheet on the wire connected into the terminal groove;

secondly, the first clamping part and the second clamping part of two different structures on the terminal groove are respectively matched and buckled with the elastic sheet, so that the elastic sheet cannot swing left and right and move up and down, the fixed end of the elastic sheet can be firmly fixed on the inner side wall of the terminal groove, the structure for fixing the elastic sheet is simplified, and the fixing effect of the elastic sheet in the terminal groove can be ensured;

moreover, the matching structure of the bending section for protecting the elastic sheet is formed on the terminal groove, so that the elastic sheet in the wiring terminal can be prevented from being crushed by a screwdriver; by forming the limiting opening on the side wall of the terminal groove, the actual requirement for limiting the movement of the wire taking tool can be met.

Drawings

Fig. 1 is a schematic structural view of a connection terminal in the present embodiment;

fig. 2 is a top view of the terminal shown in fig. 1;

FIG. 3 is a schematic view of the terminal slot structure of FIG. 1;

fig. 4 is a sectional view of the terminal when the resilient plate is not pressed by an external force;

fig. 5 is a sectional view of the terminal when the resilient plate is pressed to a maximum stroke by an external force;

fig. 6 is a schematic view of the connecting terminal shown in fig. 1 in a state of being connected to a wire;

FIG. 7 is a cross-sectional view of the structure shown in FIG. 6;

FIG. 8 is a schematic diagram illustrating a wire retrieving tool performing a wire retrieving operation on the conductive wire of FIG. 6;

FIG. 9 is a cross-sectional view of the wire retrieving tool pressing down on the terminal spring;

fig. 10 is a sectional view of the terminal spring plate pressed down to the maximum stroke by the wire-drawing tool.

Wherein the numbers in the figures are as follows:

1-terminal groove, 10-wire access channel, 11-first clamping part, 12-second clamping part, 121-first extension part, 122-second extension part, 13-matching structure, 141-abutting surface, 142-limiting boss, 15-limiting opening, 16-bending edge, 17-welding foot, 18-oblique edge, 2-elastic sheet, 20-notch, 21-fixed end, 210-first clamping hole, 22-movable end and 23-bending section.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the present embodiment provides a connection terminal including:

a terminal groove 1, which is provided with a lead access channel 10 for inserting the lead 3, and a first clamping part 11 for clamping a fixed end 21 of the elastic sheet 2 is formed on the inner side wall of the terminal groove 1; the terminal slot 1 is made of conductive material;

the elastic sheet 2 is located in the terminal groove 1, the elastic sheet 2 has a fixed end 21, a movable end 22 and a bending section 23 respectively connecting the fixed end and the movable end, the movable end 22 of the elastic sheet 2 is located at the inner side of the terminal groove 1 and can move towards the inner side of the terminal groove 1 along the direction of the external force applied under the external force pressing state. Specifically, the fixed end 21 of the elastic sheet 2 may extend in the vertical direction, the moving end 22 of the elastic sheet 2 is disposed in an inclined manner with respect to the fixed end of the elastic sheet, and an included angle is formed between the moving end 22 of the elastic sheet and the bending section 23. The inner side wall of the terminal groove mutually fixed with the fixed end of the elastic sheet also extends along the vertical direction. Wherein, two first clamping parts 11 which respectively clamp the side edges of the fixed end 21 of the elastic sheet 2 are formed on the inner side wall of the terminal groove 1, and the two first clamping parts 11 respectively clamp the two opposite side edges of the fixed end of the elastic sheet. Two opposite side edges of the fixed end of the elastic sheet are respectively clamped by the two first clamping parts 11 of the terminal groove 1, so that the fixed end of the elastic sheet can be prevented from swinging left and right, and further the firmness of the elastic sheet when the elastic sheet is fixed in the terminal groove is enhanced. The bending section 23 and the moving end 22 are transited by an inclined slope section. The first engaging portion 11 of this embodiment is a block-shaped structure formed on the side wall of the terminal groove and extending toward the inside of the terminal groove so as to be able to closely contact the fixed end 21 of the spring piece.

Specifically, as shown in fig. 7, the fixed end 21 of the elastic sheet 2 is formed with a first fastening hole 210, and the inner side wall of the terminal groove 1 is formed with a second fastening portion 12 adapted to be fastened into the first fastening hole 210. The second engaging portion 12 includes a first extending portion 121 and a second extending portion 122 extending in different directions to form an included angle, and the first extending portion 121 and the second extending portion 122 respectively penetrate into the first engaging hole 210 and engage with the first engaging hole 210. Specifically, the fixed end 21 of the elastic sheet 2 may be disposed closely to the inner side wall of the terminal groove 1, and the first extending portion 121 and the second extending portion 122 are disposed along the direction of the fixed end of the elastic sheet in the terminal groove to be clamped in the first clamping hole 210, so as to prevent the elastic sheet from moving in the up-down direction of the terminal groove. The first extension 121 and the second extension 122 may each be an inner convex boss.

The second clamping part on the inner wall of the terminal groove is structurally arranged, so that the terminal groove can clamp the first clamping hole on the elastic sheet fixed end through the two extending parts, and the fastening effect between the elastic sheet fixed end and the inner wall of the terminal groove is firmer.

Certainly, the second engaging portion may also form a protruding portion toward the inner side of the terminal groove, which can be inserted into the first engaging hole to be fixed, that is, by configuring the second engaging portion on the inner side wall of the terminal groove, the terminal groove and the elastic piece fixing end can be matched with the protruding portion and the first engaging hole to achieve a firmer fastening effect.

The wiring terminal of the embodiment is internally provided with the first clamping part 11 and the second clamping part 12 at the same time, so that the elastic sheet is prevented from swinging left and right and moving up and down in the terminal groove, and the fixing effect of the elastic sheet in the terminal groove is further enhanced.

Of course, as another implementation manner, according to actual needs, a second fastening hole (not shown in the figure) may be formed on the inner side wall of the terminal groove 1, and a third fastening portion (not shown in the figure) adapted to be fastened into the fastening hole is formed at the fixed end of the elastic piece. Correspondingly, the third engaging portion may have two extending portions (i.e. a first extending portion and a second extending portion having an included angle) with the same structure as the second engaging portion.

In order to prevent the screwdriver from crushing the spring plate in the terminal when the movable end of the spring plate is pressed down by the wire taking tool 4 such as the screwdriver, referring to fig. 1, 2 and 4 to 6, in the terminal of the embodiment, the terminal groove 1 is formed with the matching structure 13 into which the bent section 23 of the matching spring plate 2 is clamped, and the bent section 23 is positioned at the inner side of the matching structure 13. In this way, the bent section 23 of the elastic sheet 2 can prevent the screwdriver from crushing the elastic sheet under the protection of the matching structure 13 of the terminal slot 1. The extension direction of the mating structure 13 preferably corresponds to the extension direction of the bending section 23.

In order to clamp the conductive wire with the elastic sheet, an abutting surface 141 abutting against the moving end 22 of the elastic sheet to form an included angle may be formed on the inner side wall of the terminal slot 1, and the abutting surface 141 is configured as shown in fig. 3 to 5.

In order to limit the displacement of the moving end of the elastic sheet when the moving end is pressed down by the force in the terminal groove, so as to avoid the influence of the excessive displacement of the elastic sheet on the clamping effect of the connected lead, a limit boss 142 for limiting the maximum stroke of the moving end of the elastic sheet moving down in the terminal groove is formed on the inner side wall of the terminal groove 1. That is, the displacement of the moving end of the elastic sheet is limited by the limiting boss 142, so that the elastic sheet is prevented from generating excessive displacement. The structural arrangement of the limiting boss 142 is shown in fig. 3-5 and fig. 7.

In addition, as shown in fig. 1, 2, 3, 6, 8 and 9, a limit opening 15 for limiting the moving distance of the wire taking tool 4 is formed on the side wall of the terminal groove 1.

In the terminal of this embodiment, notches 20 are formed on each side of the spring plate 2 near the moving end 22. And, the position that is located on the inside wall of the terminal slot 1 and is close to the limit opening 15 is formed with the bending edge 16 that bends and extends towards the notch 20 of the elastic sheet, the bending edge 16 and the notch 20 avoid each other, the moving end 22 of the elastic sheet 2 is located in the space defined by the bending section 16 and the wire access channel 10.

Referring to fig. 1 and 3, in the terminal according to this embodiment, at least one pair of solder fillets 17 are formed on the terminal groove 1, the solder fillets 17 are respectively located on two opposite side walls of the terminal groove 1, and the solder fillets 17 are not symmetrical to each other. By arranging the two solder tails on the two side walls of the terminal groove, the whole connecting terminal can be firmly welded on the PCB by welding, and by arranging the two solder tails in an asymmetrical manner, the connecting terminal can be prevented from being reversely inserted into the PCB.

In addition, a beveled edge 18 is provided between the retainer opening 15 in the side wall of the terminal slot and the mating structure 13. The sloping edge 18 slopes downwardly from the level of the cooperating structure 13 towards the level of the restriction opening 15.

It should be noted that, in the terminal of this embodiment, the first engaging portion 11 and the second engaging portion 12 of two different structures on the terminal groove 1 are respectively engaged with the elastic sheet, so that the elastic sheet cannot swing left and right and move up and down, and the elastic sheet fixing end can be firmly fixed on the inner side wall of the terminal groove, thereby not only simplifying the structure for fixing the elastic sheet, but also ensuring the fixing effect of the elastic sheet in the terminal groove.

Of course, as another embodiment that the elastic sheet 2 is fixed in the terminal groove 1, the elastic sheet 2 may also be fixed in the terminal groove 1 by welding or riveting.

Claims (10)

1. A wire terminal, comprising:

a terminal groove (1) in which a wire insertion passage (10) into which a wire is inserted is formed;

the elastic sheet (2) is positioned in the terminal groove (1), the elastic sheet (2) is provided with a fixed end (21), a movable end (22) and a bending section (23) which is respectively connected with the fixed end and the movable end, and the movable end (22) of the elastic sheet (2) is positioned on the inner side of the terminal groove (1) and can move towards the inner side of the terminal groove (1) along the direction of the external force applied under the external force pressing state;

the terminal is characterized in that the fixed end (21) of the elastic sheet (2) is fixed with the inner side wall of the terminal groove (1).

2. A terminal according to claim 1, wherein a first engaging portion (11) for engaging with a fixed end (21) of the resilient piece (2) is formed on an inner side wall of the terminal groove (1).

3. A terminal according to claim 1 or 2, wherein the fixed end (21) of the spring plate (2) is fixed with the inner side wall of the terminal groove (1) through a mutually matched buckling structure.

4. A terminal according to claim 3, wherein the fixed end (21) of the resilient plate (2) is formed with a first engaging hole (210), and the inner side wall of the terminal groove (1) is formed with a second engaging portion (12) adapted to be engaged into the first engaging hole (210).

5. The connection terminal according to claim 4, wherein the second engaging portion (12) includes a first extending portion (121) and a second extending portion (122) extending in different directions to form an included angle, and the first extending portion (121) and the second extending portion (122) respectively penetrate into the first engaging hole (210) and engage with the first engaging hole (210).

6. A terminal according to claim 1, characterized in that the terminal groove (1) is formed with a fitting structure (13) into which the bent section (23) of the spring (2) is fitted, and the bent section (23) is located inside the fitting structure (13).

7. A terminal according to claim 1, wherein an abutment surface (141) for limiting the stroke of the moving end (22) of the resilient tab (2) moving downward inside the terminal slot is formed on the inner side wall of the terminal slot (1).

8. A terminal according to claim 1 or 2 or 6 or 7, characterised in that a limit opening (15) is formed in at least one side wall of the terminal groove (1) to define the distance of movement of the wire take-up tool.

9. A terminal according to claim 8, characterised in that a notch (20) is formed in at least one side of the blade (2) adjacent to the moving end (22).

10. A terminal according to claim 1, wherein the terminal slot (1) is formed with at least one pair of solder tails (17), the pair of solder tails (17) being located on opposite side walls of the terminal slot (1) and the pair of solder tails (17) being asymmetric with respect to each other.

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