Welding-free signal lamp

Abstract

The utility model provides a welding-free signal lamp, which comprises a shell, a lamp group is arranged in the shell, a wiring terminal is arranged at the bottom of the shell, the wiring terminal comprises a main body part and a connecting part used for being connected with pins of the lamp group, and the welding-free signal lamp is characterized in that the connecting part comprises an upper pressing sheet and a lower pressing sheet which are adjacent to each other; the horizontal height of the upper pressing piece is larger than that of the lower pressing piece, and the upper pressing piece can be bent towards the direction of the lower pressing piece under the action of external force so that the pins can be pressed on the lower pressing piece and fixed. The signal lamp is convenient to assemble, stable, reliable and suitable for automatic production.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal lamps, and particularly relates to a welding-free signal lamp. Background Art

[0002] Signal lights are mainly used as indicator devices in electrical equipment such as electrical cabinets and distribution boxes. Existing miniature signal lights include a housing, a circuit board, protective components, a conductive sheet, and a terminal block. One end of the conductive sheet is connected and fixed to the terminal block, and the other end of the conductive sheet is provided with an elastic clamping groove. Pins are provided on both ends of the protective component. The pin at one end is welded and fixed to the circuit board, and the pin at the other end is inserted into the elastic clamping groove and electrically connected to the conductive sheet. However, in the actual operation process, there are two problems with welding. First, welding requires a high level of operation from the workers, and ordinary workers need to be trained to achieve stable welding operations; second, welding will produce cold solder joints, affecting the quality of the product.

[0003] For this purpose, someone has designed a signal light [application number CN202220721059.X; announcement number CN216813848U], which includes a shell, a lamp group arranged inside the shell, and a terminal block arranged at the bottom of the shell, wherein the terminal block has a main body suitable for assembly with screws, and a riveted portion suitable for riveting with the pin of the lamp group. The riveted portion has an open groove suitable for inserting the pin, and a first riveted sheet and a second riveted sheet respectively arranged on both sides of the open groove and suitable for clamping the pin. Or the riveted portion is a closed structure, which is formed with a first jack for the pin to pass through. The above scheme has achieved the goal of eliminating welding of the pin and the terminal block to a certain extent, but it was found in practice that since the metal itself has a certain resilience, this leads to the inadequate riveting between the two riveted sheets and the pin, resulting in looseness, making the connection between the pin and the riveted portion unstable, thereby affecting the use of the signal light. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a welding-free signal lamp, which has the advantages of easy assembly, no welding and firm connection without looseness.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a welding-free signal light, comprising a shell, a lamp group is arranged inside the shell, a wiring terminal is arranged at the bottom of the shell, the wiring terminal comprises a main body and a connecting portion for connecting to the pin of the lamp group, characterized in that the connecting portion comprises adjacent upper pressing plates and lower pressing plates, the horizontal height of the upper pressing plates is higher than that of the lower pressing plates, and the upper pressing plates can be bent toward the direction of the lower pressing plates under the action of external force so that the pins are pressed on the lower pressing plates and fixed.

[0006] The utility model designs the connecting sheet into the structure of an upper pressing sheet and a lower pressing sheet, so that the pin can pass between the upper pressing sheet and the lower pressing sheet, and then uses an external tool to squeeze the upper pressing sheet in the direction of the lower pressing sheet to deform it and press it on top of the lower pressing sheet, thereby pressing the pin against the upper surface of the lower pressing sheet, forming a clamping and squeezing effect, thereby ensuring a firm connection between the pin and the upper pressing sheet and the lower pressing sheet, thereby avoiding the problem of loose clamping due to the metal's own resilience.

[0007] Preferably, a clearance groove for the pin to pass through is provided on the edge of the lower pressing plate close to the upper pressing plate.

[0008] Preferably, the lower pressing plate is provided with a first plug hole for the pin to pass through.

[0009] Preferably, a baffle is provided on the outer periphery of the bottom of the shell, and a second insertion hole or slot for an external punching tool to pass through is opened on the baffle.

[0010] Preferably, the height difference between the upper pressing plate and the lower pressing plate is 3-8 mm smaller than the diameter of the pin.

[0011] Compared with the prior art, the welding-free signal light has the following advantages: the upper and lower pressing plates are clamped and squeezed in a scissor-like manner, so that the pins can be stably connected and fixed to the connecting part of the terminal block, and there will be no loose clamping caused by metal rebound, and the reliability is extremely high; it is suitable for automated production, which is conducive to improving production efficiency, and the product yield is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of a signal lamp of the present utility model.

[0013] Figure 2 It is a three-dimensional diagram of the signal lamp in the embodiment with the bottom cover removed.

[0014] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0015] Figure 4 It is a stereogram of a first implementation manner of the connection terminal in the embodiment.

[0016] Figure 5 It is a stereogram of a second implementation manner of the connection terminal in the embodiment.

[0017] Figure 6 It is a schematic diagram of the structure after the connection terminals and pins in the embodiment are matched.

[0018] In the figure, 1, shell; 11, enclosure; 12, second jack; 2, terminal; 21, main body; 21a, mounting hole; 22, connecting part; 22a, upper pressing plate; 22b, lower pressing plate; 3, screw; 4, clearance groove; 5, first jack; 6, pin. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1-3 The figure shows the overall structure of the welding-free signal lamp provided by the utility model, which comprises a housing 1, a lamp group arranged inside the housing 1, and a terminal 2 arranged at the bottom of the housing 1. A fence 11 is arranged around the bottom of the housing 1, and the terminal 2 is enclosed by the fence 11 at the bottom of the housing 1. A through hole for the pin 6 of the lamp group to pass through is provided at the bottom of the housing 1, and a second plug hole 12 on the fence 11 corresponding to the position of the connection part 22 of the terminal 2 can facilitate the external punching tool to pass through and apply force to the terminal 2 through the second plug hole 12.

[0021] like Figure 4 As shown, in this embodiment, the terminal block 2 includes a main body 21 and a connecting portion 22. In this embodiment, the main body 21 and the connecting portion 22 are integrally bent into a Z shape. The main body 21 is fixed to the bottom of the housing 1 by screws 3, and the main body 21 is provided with a mounting hole 21a threadedly connected to the screw 3; the connecting portion 22 includes an upper pressing plate 22a and a lower pressing plate 22b, which are arranged adjacent to each other, the upper pressing plate 22a is close to the enclosure 11, and the horizontal height of the upper pressing plate 22a is higher than that of the lower pressing plate 22b, and the height difference between the two matches the diameter of the pin 6. In general, the height difference is slightly smaller than the diameter of the pin 6 by 3-8 wires, which is conducive to the upper pressing plate 22a pressing the pin 6 onto the lower pressing plate 22b after deformation. The edge of the lower pressing plate 22b close to the upper pressing plate 22a is provided with a clearance groove 4 for the pin 6 to pass through. The setting of the clearance groove 4 facilitates the limiting of the pin 6, so as to prevent the pin 6 from being displaced due to force during the bending process of the upper pressing plate 22a, thereby ensuring the connection and fixation between the pin 6 and the upper pressing plate 22a and the lower pressing plate 22b.

[0022] As a convertible implementation method, Figure 5 As shown, the lower pressing plate 22b is provided with a first insertion hole 5 for the pin 6 to pass through.

[0023] like Figure 6As shown, after the connection rod is fixed by applying force to the connection terminal 2 and the pin 6 of the utility model through an external tool, the upper pressing piece 22a of the connection terminal 2 is bent and the pin 6 is pressed against the lower pressing piece 22b. Due to the height difference between the upper pressing piece 22a and the lower pressing piece 22b, the upper pressing piece 22a can tightly squeeze the pin 6 on the upper surface of the lower pressing piece 22b, thus forming a dual effect of squeezing and clamping. Even if the upper pressing piece 22a rebounds slightly, it will not cause the pin 6 to loosen. Thereby, the stability and firmness of the connection of the pin 6 are well guaranteed, and compared with the existing technology, not only the production efficiency is guaranteed, but also the product yield is guaranteed.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A welding-free signal lamp, comprising a housing (1), a lamp group being arranged inside the housing (1), a wiring terminal (2) being arranged at the bottom of the housing (1), the wiring terminal (2) comprising a main body (21) and a connecting portion (22) for connecting to a pin of the lamp group, characterized in that: The connecting portion (22) comprises an adjacent upper pressing plate (22a) and a lower pressing plate (22b); the upper pressing plate (22a) is higher than the lower pressing plate (22b); and the upper pressing plate (22a) can be bent towards the lower pressing plate (22b) under the action of an external force so that the pin is pressed onto the lower pressing plate (22b) and fixed.

2. A welding-free signal lamp according to claim 1, characterized in that: An edge of the lower pressing plate (22b) close to one side of the upper pressing plate (22a) is provided with a clearance groove (4) for the pin to pass through.

3. A welding-free signal lamp according to claim 1, characterized in that: The lower pressing plate (22b) is provided with a first insertion hole (5) for the pin to pass through.

4. A welding-free signal lamp according to claim 1, 2 or 3, characterized in that: A baffle (11) is provided on the outer periphery of the bottom of the shell (1), and a second insertion hole (12) or a slot for an external punching tool to pass through is opened on the baffle (11).

5. A welding-free signal lamp according to claim 1, 2 or 3, characterized in that: The height difference between the upper pressing plate (22a) and the lower pressing plate (22b) is 3-8 mm smaller than the diameter of the pin.

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