TWM485557U - Connecting terminal bench - Google Patents

Description

Terminal block

The present invention relates to a terminal block, and more particularly to a terminal block that can be damaged by excessive pressing or external force impact.

Referring to FIG. 1 , a conventional terminal block is suitable for connecting two wires 18 , the terminal block includes two inlets 11 for inserting the wires 18 , and two pressing tongue portions respectively having a pressing portion 121 . 12.

Since the pressing tongue portion 12 is structurally weak, it is easily broken by the user due to excessive pressing or unintended external impact, and since the general terminal block is welded to the circuit board 19 when applied, once damaged, Replacement is very inconvenient.

Furthermore, the conventional pressing portion 121 has only a circular recess in the middle, and it is required to be pressed with a specific needle (not shown), which is not convenient to use.

Accordingly, it is an object of the present invention to provide a terminal block that solves the above problems.

Therefore, the novel terminal block is adapted to connect a wire having a conductive end, and the terminal block comprises a lead frame and an insulating case.

The lead frame includes a substrate, and two clamping elastics disposed on the substrate, the clamping elastics respectively having a clamping portion adapted to clamp the conductive end of the wire and a distal portion extending away from the clamping portion The pressure department.

The insulating housing is sleeved on the lead frame, and includes an inlet for inserting the wire, a pressing tongue portion for pressing by the user and having a fixed end and a free end, and a pair of tongue portions to be pressed The free end limit block corresponds to the pressing portion for limiting the free end of the free end when pressed.

The free end of the pressing tongue portion presses the pressing portion of the clamp elastic piece inward when being pressed, and the free end of the pressing end is pressed against the limiting block when pressed, and the The pressing portions are separated from each other by the pressing of the free ends, and the clamping portions are moved away from each other to relax the clamping force of the conductive ends of the wires.

The function of the present invention is that, by the position of the design corresponding to the free end of the pressing tongue portion, the moving distance of the free end when pressed can be restricted, and the pressing tongue portion can be prevented from being damaged due to excessive pressing. It can extend the service life of the product and increase the convenience of use.

2‧‧‧ lead frame

21‧‧‧Substrate

211‧‧‧Flange

22‧‧‧Pliers shrapnel

221‧‧‧Pliers

222‧‧‧Resistance Department

223‧‧‧ card hook

3‧‧‧Insulated casing

31‧‧‧Import

311‧‧‧Circular

312‧‧‧Section

32‧‧‧Press the tongue

321‧‧‧ fixed end

322‧‧‧Free end

323‧‧‧ inner flange

324‧‧‧ Force Department

325‧‧‧ Groove

33‧‧‧Limited blocks

34‧‧‧First Identification Board

35‧‧‧Second Identification Board

351‧‧‧ID space

352‧‧‧ Identification Platform Department

36‧‧‧Clock Department

37‧‧‧Mate

4‧‧‧ Identification block

7‧‧‧Wire

71‧‧‧Electrical end

8‧‧‧ boards

9‧‧‧Lights

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of one of the conventional terminal blocks; FIG. 2 is a preferred embodiment of the present type of terminal block. Schematic diagram of a three-dimensional explosion; 3 is a schematic sectional view of a preferred embodiment; FIG. 4 is a schematic cross-sectional view of a preferred embodiment; FIG. 5 is a schematic view showing a preferred embodiment of the clamp wire; FIG. 6 is a schematic cross-sectional view A pressing tongue portion of the preferred embodiment is pressed against a limiting block; FIG. 7 is a schematic view showing that the two clamping elastic pieces of the preferred embodiment are separated by pressing; FIG. 8 is a 3 is a perspective view showing a third embodiment of the preferred embodiment; and FIG. 10 is a perspective view showing a fourth embodiment of the preferred embodiment.

Referring to Figures 2, 3 and 4, a preferred embodiment of the present type of terminal block is adapted to connect a wire 7 having an electrically conductive end 71 that is insulated, the terminal block comprising a lead frame 2, an insulative housing 3 And an identification block 4, wherein the lead frame 2 is made of metal, and the insulating case 3 is made of plastic.

The lead frame 2 includes a substrate 21 and two clamping elastic pieces 22 disposed on the substrate 21. The substrate 21 has two flanges 211 for fitting to the insulating housing 3. The clamping elastic pieces 22 respectively have a The clamping portion 221 of the conductive end 71 of the wire 7 and a pressing portion 222 extending away from the clamping portion 221 , the clamping portion 221 having two clamping holes for the insulating housing 3 Hook 223.

It is worth mentioning that the flanges 211 can also be other non-straight The type in which the wire can be fitted to the insulating case 3 is not limited thereto.

The insulative housing 3 is sleeved on the lead frame 2, and includes an inlet 31 for inserting the wire 7, a pressing tongue portion 32 for pressing by the user, and an inner limiting block 33 (see FIG. 3). a first identification plate portion 34 adjacent to the introduction port 31 and substantially horizontal, a second identification plate portion 35 adjacent to the introduction port 31 and substantially perpendicular, and an engagement portion 36 corresponding to the hook 223 And the fitting portion 37 of the flange 211 of the corresponding substrate 21, wherein, for the sake of clarity of the drawing, in FIG. 3, the engaging portion 36 and the fitting portion 37 are only one of them. .

The introduction port 31 has a circular portion 311 and two square portions 312 located on opposite sides of the circular portion 311.

The pressing tongue portion 32 has a fixed end 321 adjacent to the lead frame 2 and a free end 322 extending from the fixed end 321 along the axis of the wire 7. The free end 322 is corresponding to the pressing portion 222. The inner flange 323 is disposed on the inner portion and corresponding to the pressing portion 222, and an external force applying portion 324 is recessed in the center and has a laterally extending groove 325. For cross or slotted screwdrivers.

The position of the stop block 33 corresponds to the free end 322 of the tongue portion 32 and serves to limit the free end 322 to a safe limit position when pressed.

The first identification plate portion 34 and the second identification plate portion 35 cooperate to define a recognition space 351 for the identification block 4 to be detachably disposed.

In this embodiment, the limiting portion 33 is formed at the end of the first identification plate portion 34 extending inwardly, but the limiting block 33 may be disposed at the free end 322 of the tongue portion 32 and provided. Any place of the safety limit function is not limited to this.

In the present embodiment, the insulative housing 3 includes the first identification plate portion 34 and the second identification plate portion 35, and the first identification plate portion 34 and the second identification plate portion 35 cooperate to define the The space 351 is identified, but the insulative housing 3 may be recessed inwardly adjacent to the inlet port 31 to form the identification space 351, or an identification platform for the identification block 4 may be formed directly adjacent to the inlet port 31. The portion 352 is not limited to this.

It is worth mentioning that the identification block 4 is used for the user to recognize whether the inserted wire 7 is correct, and the identification block 4 having the same color as the predetermined insertion wire 7 can be used, for example, the red identification block 4 is used for the fire line. The grounding line uses the green identification block 4, or directly uses the sticker or laser engraving on the first identification plate portion 34 to indicate the wire 7 to be inserted, and the identification block 4 is omitted, and is not limited thereto.

Referring to FIG. 4 and FIG. 5, in general use, the wire 7 is inserted into the inlet 31 of the insulating casing 3 and clamped by the clamps 22, as shown in FIG. 6 and FIG. 7, when the user needs to withdraw the wire. At 7 o'clock, the free end 322 of the pressing tongue portion 32 can be moved inwardly by using a screwdriver (not shown) against the depression pressing the center of the urging portion 324, and the inner flange 323 is pressed against The pressing portions 222 of the clamps 22 are biased away from each other by the inner flange 323, and the clamping portions 221 are moved away from each other to relax the conductive ends of the wires 7. 71 clamp In this way, the wire 7 can be withdrawn, and since the inward movement of the free end 322 is restricted by the limiting block 33 and maintained within the safe limit position, damage due to excessive pressing can be avoided.

Referring to FIG. 3, in one application of the present embodiment, the lead frame 2 is directly soldered to a circuit board 8 to provide the wire 7 electrically connected to the plurality of illuminants 9.

Referring to FIG. 8 , FIG. 9 and FIG. 10 , the embodiment may be sold and used in a single form as described above, or may be used in combination as shown in FIG. 8 or as a plurality of integrally formed as shown in FIG. 9 and FIG. 10 . The style is for sale and use and is not limited to this.

Through the above description, the advantages of this embodiment can be summarized as follows:

1. The position of the inner end of the insulating housing 3 corresponding to the free end 322 of the pressing tongue portion 32 can limit the moving distance of the free end 322 when pressed, so that the distance can be avoided. The pressing tongue portion 32 is broken by the user due to excessive pressing by the user or an unexpected external force impact, which can prolong the service life and use efficiency of the product, and reduce the frequency of damage replacement and increase the convenience in use.

2. By designing the urging portion 324 as a central recess and having a laterally extending groove 325, it can be used with a standardized cross and a slotted screwdriver, without the need to additionally match a specific one as in the prior art. The needle can increase the convenience of use.

3. The identification space 351 is formed on the insulating housing 3 for the identification block 4 or directly on the first identification plate portion 34. Stickers or laser engravings are used to indicate the conductors 7 to be inserted, which can provide identification, and can immediately determine whether the pairing is correct or not, prevent patching errors, and improve the convenience and safety of use.

4. By designing the shape of the introduction port 31 to have a circular portion 311 and two square portions 312 located on opposite sides of the circular portion 311, not only the current circular wire 7 can be provided, but also can be provided. In the future, other types of wires 7 will be set aside to improve the potential marketability of the products.

5. By designing the flanges 211 on the substrate 21 and designing the corresponding fitting portions 37 on the insulating housing 3, the horizontal fixing between the insulating housing 3 and the lead frame 2 can be provided. Since the hooks 223 are disposed on the clamps 22 and the corresponding engaging portions 36 are formed on the insulating housing 3, the fixing of the insulating housing 3 and the lead frame 2 in the vertical direction can be provided. The insulating housing 3 can be fixedly disposed on the lead frame 2 without arbitrarily moving, thereby increasing the stability of the product.

In summary, the present embodiment can not only extend the service life and use efficiency of the product, increase the convenience of use, but also improve the potential marketability of the product and increase the stability of the product, so that the purpose of the present invention can be achieved. .

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

2‧‧‧ lead frame

21‧‧‧Substrate

211‧‧‧Flange

22‧‧‧Pliers shrapnel

221‧‧‧Pliers

222‧‧‧Resistance Department

223‧‧‧ card hook

3‧‧‧Insulated casing

31‧‧‧Import

311‧‧‧Circular

312‧‧‧Section

32‧‧‧Press the tongue

34‧‧‧First Identification Board

35‧‧‧Second Identification Board

351‧‧‧ID space

352‧‧‧ Identification Platform Department

4‧‧‧ Identification block

Claims (10)

A terminal block for connecting a wire having a conductive end, the terminal block comprising: a lead frame comprising a substrate, and two clamping elastic pieces disposed on the substrate, wherein the clamping pieces have a suitable one a clamping portion for clamping the conductive end of the wire and a pressing portion extending away from the clamping portion; and an insulating housing sleeved on the lead frame, including an inlet for inserting the wire a pressing tongue portion for pressing by the user and having a fixed end and a free end, and a pair of limiting blocks that should press the free end of the tongue portion, the free end position corresponding to the pressing portion, the limit The block is configured to limit the free end of the free end when pressed; the free end of the pressing tongue portion presses the pressing portion of the clamp elastic piece inward when pressed, and the free end is pressed The safety limit position is abutting against the limiting block, the pressing portions are separated from each other by the pressing of the free end, and the clamping portions are moved away from each other to relax the clamping force of the conductive end of the wire. . The terminal block of claim 1, wherein the insulative housing further comprises an identification platform portion formed adjacent to the inlet. The terminal block according to claim 2, further comprising an identification block detachably disposed on the identification platform portion. The terminal block of claim 1, further comprising an identification block detachably disposed on the insulating housing, and the insulating housing is recessed inward adjacent to the inlet to form a recognition space for the identification block . The terminal block of claim 4, wherein the insulative housing further includes a substantially horizontal first identification plate portion adjacent to the introduction port and a substantially vertical second identification plate portion, the first identification plate The portion and the second identification plate portion cooperate to define the identification space. The terminal block according to claim 5, wherein the inwardly extending end of the first identification plate portion forms the limiting block. The terminal block according to claim 1, wherein the free end of the pressing tongue portion has a biasing portion disposed on the outside, the biasing portion is centrally recessed and has a laterally extending groove, the pressing tongue portion The extending direction is substantially parallel to the axis of the wire, and the free end of the pressing tongue portion has an inner flange disposed inside and corresponding to the pressing portions. The terminal block according to claim 1, wherein the inlet port has a circular portion and two square portions on opposite sides of the circular portion. The terminal block of claim 1, wherein the clamping portion has at least one hook for being locked to the insulating housing, and the insulating housing includes a corresponding engaging portion. The terminal block of claim 1, wherein the substrate has at least one flange for fitting to the insulative housing, and the insulative housing includes a corresponding fitting portion.