Indicating lamp

Abstract

The utility model discloses an indicating lamp which comprises a housing, a circuit board, a base and two pins, an accommodating space is formed between the base and the housing, the circuit board is arranged in the accommodating space, the board surface of the circuit board is perpendicular to the axial direction of the base, a light-emitting unit is arranged on the upper surface of the circuit board, the pins are fixed in the base and extend into the accommodating space, and clamping parts are formed on the pins. The circuit board is provided with a power connection hole for clamping and fixing the clamping part, so that the indicator lamp is clamped into the power connection hole in the circuit board through the clamping part on the pin to be fixed, fixed connection and electrical connection of the indicator lamp and the circuit board are completed, the connection and fixation are reliable, a traditional mode of welding by adopting a soft wire is abandoned, and the problem that when the traditional mode is adopted, the power connection is difficult is avoided. The problem that the welding part is loosened due to vibration is solved, and the use performance is more stable.

Description

Technical Field

[0001] This utility model belongs to the field of electrical engineering, and specifically relates to an indicator light. Background Technology

[0002] In modern electronic devices, instruments, and household appliances, indicator lights are a crucial component of human-machine interaction, widely used to display device operating status, fault information, or provide operational instructions. Traditional indicator light designs typically include the following key components: LED chips, flexible wires, pins, and a housing. The LED chips are electrically connected to the pins via soldering with flexible wires, resulting in a simple overall structure and low cost. However, with the increasing complexity of electrical equipment and the diversification of application environments, traditional indicator light designs have gradually revealed some significant shortcomings in practical applications, particularly regarding mechanical reliability. Due to the characteristics of flexible wire connections, the LED chips have some room to move within the housing. While this design provides flexibility during assembly, during equipment operation, especially under external vibration, mechanical shock, or frequent operation, the spot solder joints between the LED chips and pins are prone to loosening. This loosening not only leads to unstable electrical connections but may also cause open circuits or poor contact, thus affecting the normal operation of the equipment. For example, in industrial equipment or automotive electronics, devices often face high-intensity vibration and shock; traditional indicator lights are prone to failure under such conditions, reducing system reliability. Therefore, there is still room for improvement in the existing indicator light structure. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide an indicator light with more stable performance.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides an indicator light, including a housing with an indicator cap, a circuit board with a light-emitting unit, a base fixed to the lower end of the housing, and two pins for power connection. An internal space is formed between the base and the housing. The circuit board is disposed within the internal space with its surface perpendicular to the axial direction of the base. The light-emitting unit is disposed on the upper surface of the circuit board. The pins are fixed inside the base and extend into the internal space. An upwardly protruding snap-fit ​​portion is formed on the pin. The circuit board has a power connection hole adapted to the snap-fit ​​portion. The snap-fit ​​portion snaps into the power connection hole and is fixed. The light-emitting unit is preferably a surface-mount LED.

[0006] Preferably, the pin includes an inner extension end extending into the internal space, an outer extension end extending outward from the base, and a pin fixing part disposed between the inner extension end and the outer extension end. The base has a snap-fit ​​hole for the pin fixing part to be snapped into and limited. The pin is limited on the base by the snap-fit ​​hole of the pin fixing part; the inner extension end of the pin serves as the snap-fit ​​part.

[0007] Preferably, the snap-fit ​​part is spot-welded after being snapped into the power connection hole to form a fixed connection and electrical connection between the circuit board and the pin; or / and, the snap-fit ​​part and the power connection hole are interference fit to form a fixed connection and electrical connection between the circuit board and the pin.

[0008] Preferably, an insulating partition is formed on the base between the outer extension ends of the two pins, and the insulating partition is used for electrical isolation between the two pins.

[0009] The indicator light according to the claim is characterized in that: the width of the inner extension end of the pin, the pin fixing part and the outer extension end of the pin are stepped in a progressively increasing manner.

[0010] Preferably, the pin fixing part further includes locking anti-disengagement teeth distributed on both sides of the pin fixing part, and locking positioning stop parts distributed at the junction of the pin extension end and the pin fixing part. During the pin-base mating stage, the pin fixing part is inserted into the locking hole, and the locking anti-disengagement teeth form an interference fit with the side wall of the locking hole, and the locking positioning stop parts abut against the base to form a stop limit when the pin is installed in place on the base.

[0011] Preferably, at least one of the pins has its outer extension end inclined relative to the base axis, so that the distance between the outer extension ends of the two pins gradually increases from top to bottom; the outer extension end of the pin is provided with a wiring hole with a gradually changing width.

[0012] Preferably, the indicator caps are distributed on the cover and located at the end away from the base, and the outer diameter of the indicator caps is larger than the outer diameter of the upper outer edge of the cover. An elastic buckle for mounting the indicator light is formed on the outer wall of the cover. The outer circumferential surface of the base and the inner circumferential surface of the lower port of the cover are matching circumferential surfaces. The outer circumferential surface of the base is provided with a locking platform and an annular retaining edge, as well as a slot on the annular retaining edge. The lower end of the cover is sleeved onto the outer circumference of the base, and a locking hole and a locking block are provided at the lower end of the cover. When the base is installed in place within the lower port of the cover, the edge of the lower port of the cover abuts against the upper part of the annular retaining edge, the locking hole engages with the locking platform, and the locking block is inserted into the slot.

[0013] Preferably, the inner extension end of the pin is provided with a stop surface that forms a blocking and limiting surface against the circuit board. When the circuit board is installed on the pin, the stop surface abuts against the bottom surface of the circuit board.

[0014] The advantages of this invention are as follows: By designing a snap-fit ​​part on the pin of the indicator light and providing a matching power connection hole on the circuit board, the snap-fit ​​part is inserted into the power connection hole for fixation, thus completing the fixed connection and electrical connection between the circuit board and the pin. At the same time, the connection is reliable. This connection method abandons the traditional method of using soft wires for soldering, avoiding the loosening problem caused by vibration at the solder joint when using the traditional method. At the same time, it can significantly improve the reliability of the electrical connection compared to the traditional method. In addition, the circuit board is set perpendicular to the axial direction of the base, which helps to optimize the space utilization of the indicator light. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art are briefly introduced below. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a three-dimensional schematic diagram of the indicator light in this utility model after the cover has been removed;

[0017] Figure 2 This is an exploded view of the indicator light after the cover has been removed in this utility model;

[0018] Figure 3 This is a top view of the indicator light in this utility model after the cover has been removed;

[0019] Figure 4 for Figure 3 AA sectional view;

[0020] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0021] Figure 6 for Figure 3 BB cross-sectional diagram;

[0022] Figure 7 This is a three-dimensional schematic diagram of the pins in this utility model;

[0023] Figure 8 for Figure 7 A magnified view of a portion of the image;

[0024] Figure 9 This is a three-dimensional schematic diagram of the cover in this utility model.

[0025] The reference numerals in the figure are as follows: 1. Circuit board; 10. Light-emitting unit; 11. Power connection hole; 2. Base; 21. Insulating partition; 22. Snap-fit ​​hole; 23. Snap-fit ​​platform; 24. Annular retaining edge; 241. Slot; 3. Pin; 31. Inner extension end of pin; 311. Stop surface; 32. Pin fixing part; 321. Snap-fit ​​anti-dislodgement tooth; 33. Outer extension end of pin; 331. Wiring hole; 34. Snap-fit ​​positioning stop part; 4. Cover; 41. Indicator cap; 42. Elastic buckle; 43. Snap-fit ​​hole; 44. Snap-fit ​​block; 45. Outer wall. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0027] The indicator light of this utility model embodiment has the following structure: Figure 1-9 As shown, the device includes a housing 4 with an indicator cap 41, a circuit board 1 with a light-emitting unit 10, a base 2 fixed to the lower end of the housing 4, and two pins 3 for power connection. An internal space is formed between the base 2 and the housing 4. The circuit board 1 is disposed in the internal space with its surface perpendicular to the axial direction of the base 2. The light-emitting unit 10 is disposed on the upper surface of the circuit board 1. The pins 3 are fixed inside the base 2 and extend into the internal space. An upwardly protruding snap-fit ​​portion is formed on the pins 3. The circuit board 1 has a power connection hole 11 that matches the snap-fit ​​portion. The snap-fit ​​portion snaps into the power connection hole 11 and is fixed. The light-emitting unit 10 is preferably a surface-mount LED, which is electrically connected to the circuit inside the circuit board. In this embodiment, a snap-fit ​​part is designed on the pin 3 of the indicator light, and a matching power connection hole 11 is provided on the circuit board 1. The snap-fit ​​part is fixed into the power connection hole 11, thereby completing the fixed connection and electrical connection between the circuit board 1 and the pin 3. At the same time, the connection is fixed and reliable. This connection method abandons the traditional method of using soft wires for soldering, avoiding the problem of loosening of the solder joint due to vibration when using the traditional method. At the same time, it can significantly improve the reliability of electrical connection compared with the traditional method. In addition, the circuit board 1 is set perpendicular to the axis of the base 2, which can optimize the space utilization of the indicator light.

[0028] like Figure 1-8As shown, the pin 3 includes an inner extension end 31 extending into the internal space, an outer extension end 33 extending outward from the base 2, and a pin fixing part 32 disposed between the inner extension end 31 and the outer extension end 33. The base 2 is provided with a snap-fit ​​hole 22 for the pin fixing part 32 to be snapped in and limited. By the snap-fit ​​of the pin fixing part 32 in the snap-fit ​​hole 22, the pin 3 is limited on the base 2. The inner extension end 31 is designed as the snap-fit ​​part, which can reliably fix the pin 3 on the base 2.

[0029] like Figure 1-2 As shown in Figures 4-6, in one specific embodiment, the snap-fit ​​part is snapped into the power connection hole 11 and then spot-welded to form a fixed connection and electrical connection between the circuit board 1 and the pin 3; as an extension of the above embodiment or as another embodiment, the snap-fit ​​part and the power connection hole 11 are interference fit to form a fixed connection and electrical connection between the circuit board 1 and the pin 3, so as to ensure that the circuit board 1 and the pin 3 are fixedly connected.

[0030] like Figure 1-2 As shown in Figure 6, an insulating partition 21 is formed on the base 2 between the pin extension ends 33 of the two pins 3. The insulating partition 21 is used to form effective electrical isolation between the pin extension ends 33 of the two pins 3, thereby enhancing the electrical insulation performance.

[0031] like Figure 2 , 4 As shown in -5 and 7-8, the widths of the inner extension end 31, the pin fixing part 32, and the outer extension end 33 of the pin are designed in a stepped shape with progressively increasing widths. The stepped design makes the width of the pin gradually increase in different areas. The inner extension end is narrower, which is suitable for insertion into the power connection hole of the circuit board; the pin fixing part is wider, which can be better fixed in the base; the outer extension end is the widest, providing a larger contact surface and enhancing the connection strength with the external circuit; moreover, the steps formed by the stepped structure design can also be used as a stop and limit when assembled into place.

[0032] At least one pin 3 has its pin extension end 33 inclined relative to the axial direction of the base 2, so that the distance between the pin extension ends 33 of the two pins 3 gradually increases from top to bottom. This design can provide more operating space for external wiring, reduce interference during wiring, and facilitate wiring. Preferably, the first ends of the two pins are inclined, so that the second ends of the two pins are arranged in a figure-eight shape.

[0033] Furthermore, to ensure reliable wiring of pin 3, a wiring hole 331 with a gradually changing width is provided on the corresponding pin extension end 33 of pin 3. This wiring hole 331 can better accommodate wires of different diameters and has a good limiting effect on the wires. In actual wiring, the wire is inserted into the wiring hole 331 and spot welded to fix it.

[0034] like Figure 2 , 4 As shown in -5 and 7-8, the pin fixing part 32 also includes locking anti-disengagement teeth 321 distributed on both sides of the pin fixing part 32, and locking positioning stop parts 34 distributed at the junction of the pin extension end 33 and the pin fixing part 32. During the mating stage of the pin 3 and the base 2, the pin fixing part 32 is inserted into the locking hole 22, and the locking anti-disengagement teeth 321 form an interference fit with the side wall of the locking hole 22. The locking positioning stop parts 34 abut against the base 2, forming a stop limit design when the pin 3 is installed on the base 2. This design can further ensure that the pin 3 is reliably positioned on the base 2 and form a reliable limit.

[0035] like Figure 1-2 As shown in Figure 9, the indicator caps 41 are distributed on the housing 4 and located at the end away from the base 2, and the outer diameter of the indicator caps 41 is larger than the outer diameter of the upper outer edge of the housing 4, thereby forming a stop step between the indicator caps and the housing. An elastic buckle 42 for mounting the indicator light is formed on the outer wall 45 of the housing 4. During installation, the indicator light can be quickly installed through the cooperation of the stop step and the elastic buckle 42, improving installation efficiency. The outer circumferential surface of the base 2 and the inner circumferential surface of the lower port of the housing 4 are matching circles. The base 2 has a locking platform 23 and an annular retaining edge 24 on its outer peripheral surface, and a slot 241 on the annular retaining edge 24. The lower end of the cover 4 is sleeved on the outer periphery of the base 2, and a locking hole 43 and a locking block 44 are provided at the lower end of the cover 4. When the base 2 is installed in the lower port of the cover 4, the edge of the lower port of the cover 4 abuts against the upper part of the annular retaining edge 24. The locking hole 43 engages with the locking platform 23, and the locking block 44 is inserted into the slot 241. This design enables a reliable assembly connection between the base 2 and the cover 4.

[0036] like Figure 4 and Figure 5 As shown, the inner extension end 31 of the pin is provided with a stop surface 311 that forms a blocking and limiting position on the circuit board 1. When the circuit board 1 is installed on the pin 3, the stop surface 311 abuts against the bottom surface of the circuit board 1, so that the circuit board 1 can be reliably locked at the position of the pin 3, thereby further ensuring the reliability of the cooperation between the circuit board 1 and the pin 3 in the indicator light.

[0037] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this invention still fall within the protection scope of this utility model.

Claims

1. An indicator light characterized by: The indicator lamp comprises a cover (4) with an indicating cap (41), a circuit board (1) provided with a light-emitting unit (10), a base (2) fixed to the lower end of the cover (4), and two pins (3) for electrical connection, the base (2) and the cover (4) form an inner space, the circuit board (1) is arranged in the inner space and the board surface is perpendicular to the axial direction of the base (2), the light-emitting unit (10) is arranged on the upper surface of the circuit board (1), the pins (3) are fixed in the base (2) and extend into the inner space, and the pins (3) are provided with an upwardly protruding clamping portion, the circuit board (1) is provided with an electrical connection hole (11) matched with the clamping portion, and the clamping portion is clamped into the electrical connection hole (11) and fixed.

2. The indicator light of claim 1, wherein: The pin (3) comprises a pin inner extension end (31) extending into the inner space, a pin outer extension end (33) extending outwardly from the base, and a pin fixing portion (32) arranged between the pin inner extension end (31) and the pin outer extension end (33), the base (2) is provided with a clamping hole (22) for clamping and limiting the pin fixing portion (32), and the pin fixing portion (32) is clamped in the clamping hole (22) to limit the position of the pin (3) on the base (2); the pin inner extension end (31) serves as the clamping portion.

3. The indicator light of claim 1, wherein: The clamping portion is spot-welded after being clamped into the electrical connection hole (11) to form a fixed connection and an electrical connection between the circuit board (1) and the pin (3); or / and, the clamping portion and the electrical connection hole (11) are interference-fitted to form a fixed connection and an electrical connection between the circuit board (1) and the pin (3).

4. The indicator light of claim 2, wherein: An insulating partition (21) is formed between the pin outer extension ends (33) of the two pins (3) on the base, and the insulating partition (21) is used for electrical isolation between the two pins (3).

5. The indicator light of claim 2, wherein: The widths of the pin inner extension end (31), the pin fixing portion (32), and the pin outer extension end (33) are gradually increased in a stepped manner.

6. The indicator light of claim 2, wherein: The pin fixing portion (32) further comprises clamping anti-disengagement teeth (321) distributed on both sides of the pin fixing portion (32), and a clamping-in-place stop portion (34) distributed at the junction of the pin outer extension end (33) and the pin fixing portion (32), during the cooperation of the pin (3) and the base (2), the pin fixing portion (32) is inserted into the clamping hole (22), the clamping anti-disengagement teeth (321) are interference-fitted with the side wall of the clamping hole (22), and the clamping-in-place stop portion (34) abuts against the base (2) to form a stop limit when the pin (3) is installed in place on the base (2).

7. The indicator light of claim 2, wherein: The pin outer extension end (33) of at least one of the pins (3) is arranged in an inclined manner relative to the axial direction of the base (2) to gradually increase the distance between the pin outer extension ends (33) of the two pins in the direction from top to bottom; the pin outer extension end (33) is provided with a width-gradually-changing wiring hole (331).

8. The indicator light of claim 1, wherein: The indicating cap (41) is distributed on the cover (4) and located at the end away from the base (2), and the outer diameter of the indicating cap (41) is greater than that of the upper end of the cover (4), an elastic buckle (42) for installing the indicating lamp is formed on the outer side wall (45) of the cover (4); the outer circumferential surface of the base (2) is matched with the inner circumferential surface of the lower end of the cover (4); the outer circumferential surface of the base (2) is provided with a clamping table (23) and an annular stopper (24), and a slot (241) is arranged on the annular stopper (24), the lower end of the cover (4) is sleeved on the outer circumferential surface of the base (2), and a clamping hole (43) and a clamping block (44) are arranged at the lower end of the cover (4), when the base (2) is installed in place in the lower end of the cover (4), the edge of the lower end of the cover (4) abuts against the upper part of the annular stopper (24), the clamping hole (43) is clamped with the clamping table (23), and the clamping block (44) is inserted into the slot (241).

9. The indicator light of claim 2, wherein: A stop surface (311) is arranged on the inner extension end (31) of the pin, and the stop surface (311) abuts against the bottom surface of the circuit board (1) when the circuit board (1) is installed in place on the pin.

10. The indicator light of claim 1, wherein: The light-emitting unit (10) is a patch LED lamp bead.

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