LED switching power supply of broken contact protection assembly

Abstract

The utility model relates to the technical field of electric appliance accessories, in particular to an LED switching power supply of a broken contact protection assembly, which comprises a blocking main body, a broken contact assembly, a driving assembly, an induction assembly and a heat dissipation assembly, the front end of the blocking main body is connected with a switching power supply main body, the upper end of the blocking main body is provided with two grooves, and the heat dissipation assembly is arranged in the grooves. The heat dissipation assembly comprises a fixing frame, a first motor and fan blades, a plurality of threading channels are formed in the blocking body, openings are formed in the threading channels, the broken contact assemblies are arranged on the left side and the right side in the openings, and each broken contact assembly comprises a first clamping rod, a second clamping rod and an insulating sheet; the induction assembly comprises an induction strip and a plurality of wires. According to the utility model, the LED lamp bead can be protected from being damaged by over-current and over-voltage through the broken contact assembly, the maintenance cost is reduced, the work can be automatically recovered once an abnormal condition is removed, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical component technology, and in particular to an LED switching power supply with a contact failure protection component. Background Technology

[0002] With the development of LED lighting technology, LEDs, as a high-efficiency and environmentally friendly light source, are widely used in lighting, display and other fields. As a core component of LED lighting systems, LED switching power supplies play an important role, as the quality of LEDs and the way they are used determine their lifespan.

[0003] However, most existing traditional LED switching power supplies lack effective protection measures. In particular, when a fault such as triggering a short circuit or overload occurs, the power supply may not be able to cut off the current autonomously and in a timely manner, resulting in damage to the power supply or the LED light source, which can cause certain damage to the power supply itself, the LED beads, and even the entire lighting system.

[0004] Therefore, most existing traditional LED switching power supplies lack effective protection measures. In particular, when a short circuit or overload fault occurs, the power supply may not be able to automatically and timely cut off the current, leading to damage to the power supply or LED light source, causing certain damage to the power supply itself, LED beads, and even the entire lighting system. An LED switching power supply with a disconnect protection component can be designed. When the sensing strip and multiple wires in the isolation body detect that the LED power supply output exceeds the rated current, the current is cut off to the wires. The range of motion of the clamps is based on the space of the opening to clamp the wires passing through the wiring channel to achieve isolation. The heat dissipation component can dissipate heat from the switching power supply body during use, ensuring that the system does not suffer from performance degradation or damage due to overheating during long-term operation. Utility Model Content

[0005] To overcome the problem that most existing traditional LED switching power supplies lack effective protection measures, especially when a short circuit or overload fault occurs, the power supply may not be able to cut off the current autonomously and in a timely manner, resulting in damage to the power supply or LED light source, which may cause certain damage to the power supply itself, LED chips, or even the entire lighting system.

[0006] The technical solution of this utility model is as follows: an LED switching power supply with a contact break protection component, including a contact break component, a driving component, a sensing component, and a heat dissipation component. The front end of the blocking body is connected to the switching power supply body. Two grooves are opened at the upper end of the blocking body. The heat dissipation component is installed in the grooves. The heat dissipation component includes a fixed frame, a motor and a fan. Multiple wire passages are provided inside the blocking body. Each wire passage has an opening. Contact break components are arranged on the left and right sides of the opening. The contact break component includes a clamping rod, a clamping rod, and an insulating sheet. A driving component is arranged in front of the contact break component. The driving component includes a driving bar, a connecting rod, a trapezoidal top block, a connecting rod, and a straight rod. The connecting rod is located in front of the contact break component. The sensing component includes a sensing bar and multiple wires. A sensing bar is arranged above the multiple wire passages.

[0007] Preferably, when the clamp rods 1 and 2 in the disconnection assembly sense that the LED power supply output exceeds the rated current through the sensing strip and multiple wires in the blocking body, the current is cut off to the wire. The range of motion of clamp rods 1 and 2 is based on the space of the opening to clamp the wire passing through the wire channel to achieve isolation. The heat dissipation component can dissipate heat for the switching power supply body during use, ensuring that the system will not degrade or be damaged due to overheating during long-term operation.

[0008] Preferably, there are two fan blades, both of which are installed at the front end of the fixed frame, and the two fan blades are connected to the motor through the fixed frame.

[0009] Preferably, the barrier body is equipped with a control module, the sensing components are located above multiple wire channels, the sensing strip is electrically connected to the control module, and the lower ends of multiple wires pass through multiple wire channels respectively.

[0010] Preferably, several connecting rods are provided, each fixed to the front surface of the drive bar, and several trapezoidal top blocks are provided, each connected to a corresponding connecting rod.

[0011] Preferably, the second connecting rod is fixed to the front surface of the drive bar, the lower end of the straight rod is connected to the second connecting rod, the second connecting rod is threaded with a lead screw, and one end of the lead screw is connected to the second motor.

[0012] Preferably, a fixing strip is provided below the opening, and a connecting rod three is connected to the front end of each fixing strip. A connecting block is provided at both the front and rear ends of the fixing strip, and the two connecting blocks are symmetrically arranged. Clamping rod one and clamping rod two are movably connected to the connecting blocks respectively.

[0013] Preferably, insulating sheets are respectively disposed on the inner surfaces of clamp rod one and clamp rod two, and the lower ends of clamp rod one and clamp rod two are provided with arc-shaped strips, and the trapezoidal top blocks are located between the two arc-shaped strips.

[0014] The beneficial effects of this utility model are:

[0015] 1. The LED switching power supply with a disconnect protection component uses clamp rod 1, clamp rod 2 and insulating sheet in the disconnect component to block the current of the wire. The movement of clamp rod 1 and clamp rod 2 is based on the trapezoidal top block in the drive component. According to the current, it pushes forward between the lower arc strips of clamp rod 1 and clamp rod 2 and changes the distance between the arc strips. This changes the angle between the upper parts of clamp rod 1 and clamp rod 2. A larger angle allows the wire to transmit power normally, while a smaller angle blocks the transmission of power. This can effectively prevent power supply damage caused by overload, short circuit and other faults, and improve the service life and stability of the LED switching power supply. If a short circuit occurs at the power output terminal, the short circuit protection circuit will cut off the current in a short time through the sensing component to prevent the power supply or LED beads from being damaged by excessive current.

[0016] 2. The LED switching power supply with the contact failure protection component uses the fan blades in the heat dissipation component to dissipate heat from the main body of the switching power supply during normal use, ensuring that the system will not suffer performance degradation or damage due to overheating during long-term operation. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the LED switching power supply of the contact failure protection component of this utility model.

[0018] Figure 2 The diagram shown is an exploded view of the LED switching power supply of the contact failure protection component of this utility model.

[0019] Figure 3 The diagram shows the positional relationship between the contact break component and the trapezoidal top block of the LED switching power supply of the contact break protection component of this utility model.

[0020] Figure 4 The diagram shown is a schematic of the straight rod structure of the LED switching power supply of the contact failure protection component of this utility model.

[0021] Figure 5 The diagram shown is a top view of the relative positions of the drive assembly and the contact break assembly in the LED switching power supply of the contact break protection component of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Main body of the switching power supply; 2. Main body of the barrier; 201. Groove; 202. Wiring channel; 203. Opening; 31. Fixing frame; 32. Motor 1; 33. Fan blade; 41. Sensing strip; 42. Wire; 51. Drive strip; 52. Connecting rod 1; 53. Trapezoidal top block; 54. Connecting rod 2; 55. Straight rod; 6. Lead screw; 7. Motor 2; 8. Fixing strip; 801. Connecting rod 3; 802. Connecting block; 91. Clamping rod 1; 92. Clamping rod 2; 93. Insulating sheet. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-5 This utility model provides an embodiment of an LED switching power supply with a contact break protection component, including a contact break component, a driving component, a sensing component, and a heat dissipation component. A blocking body 2 is connected to a switching power supply body 1 at its front end. Two grooves 201 are formed at the upper end of the blocking body 2, and the heat dissipation component is installed within the grooves 201. The heat dissipation component includes a fixing frame 31, a motor 32, and a fan blade 33. Multiple wiring channels 202 are provided inside the blocking body 2, each with an opening 203. Contact break components are arranged on the left and right sides of each opening 203. Each contact break component includes a clamping rod 91, a clamping rod 92, and an insulating sheet 93. A driving component is located in front of the contact break component. The driving component includes a driving bar 51, a connecting rod 52, a trapezoidal top block 53, a connecting rod 54, and a straight rod 55. The connecting rod 52 is located in front of the contact break component. The sensing component includes a sensing element. The device includes a strip 41 and multiple wires 42. A sensing strip 41 is positioned above multiple wire channels 202. Current is blocked from the wires via clamps 91 and 92 and an insulating sheet 93 in the contact-breaking assembly. The movement of clamps 91 and 92 is based on the trapezoidal top block 53 in the drive assembly. Depending on the current, the clamps are pushed forward between the lower arc-shaped strips of clamps 91 and 92, changing the distance between them. This alters the angle between the upper parts of clamps 91 and 92. A larger angle allows normal power transmission, while a smaller angle blocks power transmission. This effectively prevents power supply damage due to overload, short circuits, or other faults, improving the lifespan and stability of the LED switching power supply. If a short circuit occurs at the power output, the short-circuit protection circuit will cut off the current through the sensing assembly in a short time to prevent damage to the power supply or LED beads due to excessive current.

[0025] Please see Figure 1 , Figure 2 and Figure 4In this embodiment, two fan blades 33 are provided, and both fan blades 33 are installed at the front end of the fixed frame 31. The two fan blades 33 are connected to the motor 32 through the fixed frame 31, which can dissipate heat during normal operation. A control module is provided inside the barrier body 2. The sensing component is located above multiple wire channels 202. The sensing strip 41 is electrically connected to the control module. The lower ends of multiple wires 42 pass through multiple wire channels 202 respectively to detect whether the internal wire current is abnormal. If an abnormality is found, the control module can drive the drive component to disconnect the contact. Several connecting rods 52 are provided. The drive bar 51 is fixed to the front surface. Several trapezoidal top blocks 53 are provided, each connected to a corresponding connecting rod 52. The width of the trapezoidal top blocks 53 changes the angle between the clamping rods 91 and 92. Connecting rod 54 is fixed to the front surface of the drive bar 51. The lower end of the straight rod 55 is connected to connecting rod 54. Connecting rod 54 is threaded with a lead screw 6. One end of the lead screw 6 is connected to a motor 7. Motor 7 drives the lead screw 6 to rotate, causing the straight rod 55 to move forward or backward. The straight rod 55 then drives connecting rod 54 and the drive bar 51 to move forward or backward. Figure 5 It is known that when the connecting rod 2 54 and the driving bar 51 move forward, the trapezoidal top block 53 is pushed into the space between the clamping rod 1 91 and the clamping rod 2 92. When they move backward, the trapezoidal top block 53 can be moved out of the space between the clamping rod 1 91 and the clamping rod 2 92.

[0026] Please see Figure 3 and Figure 5 Each opening 203 has a fixing strip 8 below it, which provides a fixing and limiting structure for the contactless component. Each fixing strip 8 has a connecting rod 801 connected to its front end, which serves to fix the fixing strip 8 in place. Figure 3 As shown, connecting blocks 802 are provided at both ends of the fixing strip 8, and the two connecting blocks 802 are symmetrically arranged. Clamping rod 1 91 and clamping rod 2 92 are movably connected to the connecting blocks 802 respectively. Insulating sheets 93 are respectively provided on the inner surfaces of clamping rod 1 91 and clamping rod 2 92. Arc-shaped strips are provided at the lower ends of clamping rod 1 91 and clamping rod 2 92. Trapezoidal top blocks 53 are located between the two arc-shaped strips. Figure 5 As shown, the shapes of clamp rod 91 and clamp rod 92 are different in the upper and lower positions, thereby changing the included angle and serving to disconnect the power supply of the contact wire.

[0027] During operation, the heat dissipation assembly continuously cools the main body 1 of the switching power supply, reducing the possibility of overload. During operation, the current of the main body 1 is monitored by the isolation body 2. Wires pass through the wiring channel 202 of the isolation body 2, and the wires 42 detect abnormal current in each wire. If an overload or abnormality occurs, the control module activates the drive assembly, causing the second motor 7 to sequentially drive the lead screw 6, straight rod 55, connecting rod 54, and drive bar 51 forward. This causes the trapezoidal top block 53 to push forward between clamping rod 91 and clamping rod 92, combining... Figure 5 When the angle between the lower parts of clamp rod 91 and clamp rod 92 increases, the angle between the upper parts decreases. The current in the power supply can be blocked by the insulating sheet 93. Once the abnormal situation is resolved, the trapezoidal top block 53 will return to its original position to loosen the tightened wire, and the power supply will automatically resume operation.

[0028] In the above steps, when the clamps 91 and 92 in the disconnection assembly sense that the LED power supply output exceeds the rated current through the sensing strip 41 and multiple wires 42 in the blocking body 2, the current is cut off to the wires. The range of motion of the clamps 91 and 92 is based on the space of the opening 203 to clamp the wires passing through the wire passage 202 to achieve isolation. The heat dissipation component can dissipate heat for the switching power supply body 1 during use, ensuring that the system will not degrade or be damaged due to overheating during long-term operation. This solves the problem that most existing traditional LED switching power supplies lack effective protection measures, especially when a short circuit or overload fault occurs, the power supply may not be able to cut off the current autonomously and in time, resulting in damage to the power supply or LED light source, which may cause certain damage to the power supply itself, LED beads, or even the entire lighting system.

Claims

1. An LED switching power supply with a disconnection protection component, comprising an isolation body (2); characterized in that: It also includes a disconnection component, a drive component, a sensing component, and a heat dissipation component. The front end of the barrier body (2) is connected to the switching power supply body (1). Two grooves (201) are opened at the upper end of the barrier body (2). The heat dissipation component is installed in the groove (201). The heat dissipation component includes a fixed frame (31), a motor (32), and a fan blade (33). Multiple wire passages (202) are provided inside the barrier body (2). Each wire passage (202) has an opening (203). The left side of the opening (203) is... The right sides are provided with contact break components, which include clamp rod one (91), clamp rod two (92) and insulating sheet (93). The front of the contact break components is provided with a drive component, which includes a drive bar (51), a connecting rod one (52), a trapezoidal top block (53), a connecting rod two (54) and a straight rod (55). The connecting rod one (52) is located in front of the contact break components. The sensing component includes a sensing bar (41) and multiple wires (42). The sensing bar (41) is provided above the multiple wire channels (202).

2. The LED switching power supply with the contact failure protection component according to claim 1, characterized in that: There are two fan blades (33), and both fan blades (33) are installed at the front end of the fixed frame (31). The two fan blades (33) are connected to the motor (32) through the fixed frame (31).

3. The LED switching power supply with the contact failure protection component according to claim 1, characterized in that: The barrier body (2) is equipped with a control module. The sensing component is located above multiple wire channels (202). The sensing strip (41) is electrically connected to the control module. The lower ends of multiple wires (42) pass through multiple wire channels (202).

4. The LED switching power supply with the contact failure protection component according to claim 1, characterized in that: Several connecting rods (52) are provided, and each connecting rod (52) is fixed to the front surface of the drive bar (51). Several trapezoidal top blocks (53) are provided, and each trapezoidal top block (53) is connected to the corresponding connecting rod (52).

5. The LED switching power supply with the contact failure protection component according to claim 1, characterized in that: Connecting rod 2 (54) is fixed to the front surface of drive bar (51). The lower end of straight rod (55) is connected to connecting rod 2 (54). Connecting rod 2 (54) is threaded with screw rod (6). One end of screw rod (6) is connected to motor 2 (7).

6. The LED switching power supply with the contact failure protection component according to claim 1, characterized in that: A fixing strip (8) is provided below the opening (203). A connecting rod three (801) is connected to the front end of the fixing strip (8). A connecting block (802) is provided at both the front and rear ends of the fixing strip (8). The two connecting blocks (802) are symmetrically arranged. The clamping rod one (91) and the clamping rod two (92) are movably connected to the connecting block (802) respectively.

7. The LED switching power supply with the contact failure protection component according to claim 4, characterized in that: Insulating sheets (93) are respectively disposed on the inner surfaces of clamp rod one (91) and clamp rod two (92). The lower ends of clamp rod one (91) and clamp rod two (92) are provided with arc-shaped strips, and trapezoidal top blocks (53) are located between the two arc-shaped strips.

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