Timing tripper reliable in tripping

Abstract

The utility model discloses a timing tripper with reliable tripping, relates to the technical field of circuit breaker accessories, and solves the problems of unreasonable design, small tripping force and the like. Comprising an integrated tripping piece, the integrated tripping piece is in a T shape and comprises a hinge end, a tripping end and an input section, the hinge end and the tripping end are located on the two sides of the input section, and the hinge end is rotationally connected to the right shell; the trip coil is fixed in the right shell along the height direction of the shell, the output position of the trip coil is provided with a telescopic ejector rod, and the ejector rod is in pressing contact with the input section so as to eject the input section through the ejector rod; the tripping end extends out of the right shell to form a tripping rod, and the tripping rod is connected with a corresponding circuit breaker. According to the circuit breaker tripping device, tripping is carried out by utilizing the jacking force of the ejector rod of the tripping coil, and a greater lever effect can be generated when the ejector rod extends out, so that the ejector rod can transmit the force to the tripping rod more effectively, the tripping force is enhanced, and the circuit breaker can be quickly and completely disconnected when the circuit breaker needs to be tripped.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker accessories, in particular to a timing release with reliable tripping. Background Art

[0002] Nowadays, with the development of electrical equipment and technology, circuit protection has become one of the key factors to ensure the safe operation of equipment. In the power system, when faults such as overload or short circuit occur in the circuit, timely cutting off the power supply is a necessary measure to prevent the further expansion of accidents. For this reason, various types of release devices are widely used in homes, industries, and commercial buildings. Among them, the timing release is a relatively rare type of release device, which uses a timing module to control the action of the release coil. The release coil drives the driving mechanism to act, causing the release rod inserted into the circuit breaker to be toggled upward, thereby tripping the circuit breaker.

[0003] However, due to unreasonable or overly complex designs, traditional timing release devices cannot provide sufficient breaking capacity (i.e., tripping force), resulting in incomplete or delayed tripping, which in turn affects the stability and safety of the entire system. Summary of the Invention

[0004] Objective of the utility model: In order to overcome the defects of the prior art, the utility model provides a timing release with reliable tripping, which solves problems such as unreasonable design and small tripping force.

[0005] Technical solution of the utility model: It includes a release coil, a display screen, a control circuit board, and a left housing and a right housing that are snap-fitted with each other. The control circuit board is electrically connected to the release coil and the display screen respectively. It also includes an integrated release part, which is in the shape of a "T". It includes a hinged end, a release end, and an input section. The hinged end and the release end are located on both sides of the input section, and the hinged end is rotatably connected to the right housing; the release coil is fixed in the right housing along the height direction of the housing, and a telescopic ejector rod is provided at the output position of the release coil. The ejector rod is in top-pressure contact with the input section to lift the input section through the ejector rod; the release end extends out of the right housing to form a release rod, and the release rod is connected to the corresponding circuit breaker.

[0006] By adopting the above technical solution, by vertically installing the release coil and using the ejector rod to lift the input section, the integrated release part rotates as a whole around the hinged end, thereby driving the release rod to be toggled upward, so as to realize the timing tripping of the circuit breaker; it uses the lifting force of the ejector rod of the release coil for tripping, which can generate a greater leverage effect when the ejector rod extends, enabling the ejector rod to more effectively transmit the force to the release rod, thereby enhancing the tripping force and ensuring that the circuit breaker can be quickly and completely disconnected when tripping is required. At the same time, the increase in the tripping force makes the tripping action smoother and reduces the risk of tripping failure caused by mechanical jamming.

[0007] In a possible design, an inner part of the left housing is convexly provided with an orbital block, and the integrated release fastener is provided with a contact rod. The contact rod extends towards the left housing, and its top end contacts the top surface of the orbital block to form relative sliding.

[0008] With the above design, through the cooperation between the orbital block and the contact rod, the integrated release fastener is prevented from deviating towards the left housing, the stability of the integrated release fastener during movement is increased, and the deviation of the release fastener from the correct path caused by mechanical vibration or external impact is avoided, thereby ensuring that each release action can be accurately executed.

[0009] In a possible design, the right housing is provided with a plurality of snap blocks, and the snap blocks are snap-connected to the corresponding circuit breaker.

[0010] With the above design, the right housing is snap-assembled with the circuit breaker, so that the timing release is assembled at the left position of the circuit breaker, avoiding occupying the right space originally reserved for the leakage protector, neither affecting the installation position of the leakage protector nor fully utilizing the space resources beside the circuit breaker, and realizing the maximization of space utilization.

[0011] In a possible design, a rotation hole is provided at the hinge end, and a rotating shaft is arranged inside the right housing. The rotating shaft is inserted into the rotation hole to form a rotational fit.

[0012] With the above design, during assembly, only by aligning the rotating shaft with the rotation hole and inserting it can the connection be completed, without complex alignment steps, simplifying the assembly and facilitating the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the external structure of a specific embodiment of the present invention;

[0014] Figure 2 is a schematic diagram of the structure of the present invention with the left housing omitted;

[0015] Figure 3 is an exploded view of the present invention with the left housing omitted;

[0016] Figure 4 is a schematic diagram of the structure of the integrated release fastener of the present invention;

[0017] Figure 5 is a schematic diagram of the structure of the left housing of the present invention;

[0018] Among them, 1. Integrated release fastener; 11. Hinge end; 111. Rotation hole; 12. Release end; 121. Release rod; 13. Input section; 14. Contact rod; 2. Release coil; 21. Thumb latch; 3. Display screen; 4. Control circuit board; 5. Left housing; 51. Orbital block; 6. Right housing; 61. Snap block; 62. Rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] like Figures 1-5 A reliable timed release shown in the figure comprises an integrated release part 1, a release coil 2, a display screen 3, a control circuit board 4, and a left shell 5 and a right shell 6 that are engaged with each other, and the control circuit board 4 is electrically connected to the release coil 2 and the display screen 3. The integrated release part 1 is in a "T" shape, and comprises a hinged end 11, a release end 12, and an input section 13. The hinged end 11 and the release end 12 are located on both sides of the input section 13, and the hinged end 11 and the release end 12 are on a straight line, and the input section 13 is located at a branch position of the straight line, and the input section 13 is approximately perpendicular to the straight line. The hinged end 11 is rotatably connected to the right housing 6; the tripping coil 2 is fixed in the right housing 6 along the height direction of the housing, and the output position of the tripping coil 2 has a retractable push rod 21, which is pressed and contacted with the input section 13 to lift the input section 13 through the push rod 21; the tripping end 12 extends out of the right housing 6 to form a tripping rod 121, and the tripping rod 121 is connected to the corresponding circuit breaker. The height direction of the housing is the direction from the display screen 3 to the bottom of the housing and the guide plate, and the telescopic direction of the push rod 21 of the tripping coil 2 is consistent with the height direction. When the time reaches the set time, the control circuit board 4 sends an electrical signal to push the push rod 21 of the tripping coil 2 upward, and the integrated tripping part 1 rotates a certain angle around the hinged end 11 as a whole, driving the tripping end 12 to shift, and the tripping rod 121 inserted into the circuit breaker tripping position is forced to move upward, thereby driving the circuit breaker to trip. During tripping, the tripping is mainly carried out by utilizing the lifting force of the top rod 21 of the tripping coil 2, and a greater lever effect is generated when the top rod 21 is extended, thereby obtaining a more effective tripping force. The enhanced tripping force makes the tripping action smoother, ensuring that the circuit breaker can be quickly and completely disconnected when tripping is required, thereby improving the overall performance of the tripper and ensuring the reliability and efficiency of circuit protection.

[0020] A track block 51 is protruding from the interior of the left housing 5. The track block 51 has a top surface. The integrated release component 1 has a contact rod 14. The contact rod 14 extends toward the left housing 5 and its top end contacts the top surface of the track block 51 to form relative sliding. During the operation of the integrated release component 1, the contact rod 14 contacts the track block 51 and slides relatively. Due to the limitation of the track block 51, the integrated release component 1 can be prevented from deviating toward the left housing 5, reducing the possible deflection or shaking of the integrated release component 1 during movement. At the same time, after the left housing 5 and the right housing 6 are assembled, the contact rod 14 of the integrated release component 1 automatically aligns with the track block 51, without the need for complicated alignment steps, thereby reducing the cost of production and maintenance.

[0021] The right housing 6 is provided with a number of snap blocks 61, and the snap blocks 61 are snap-connected to the corresponding circuit breaker. In practical applications, a space is usually reserved on the right side of the circuit breaker for installing a leakage protector or other additional components. Installing the timing tripper on the left not only reserves the space on the right side, but also makes the configuration of the entire system more flexible and variable, effectively avoiding occupying the space originally reserved for the leakage protector, increasing the installation frequency of the timing tripper, and enhancing its practicability.

[0022] The hinge end 11 is provided with a rotating hole 111, and a rotating shaft 62 is arranged in the right housing 6. The rotating shaft 62 is inserted into the rotating hole 111 to form a rotational fit. During assembly, only by aligning the rotating shaft 62 with the rotating hole 111 and inserting it can the connection be completed, without complex alignment steps, reducing the production and maintenance costs. If adjustment or maintenance is required, the rotating shaft 62 can be conveniently disassembled to inspect or replace the integrated tripping part 1.

Claims

1. A timed release with reliable tripping, comprising a tripping coil (2), a display screen (3), a control circuit board (4), and a left shell (5) and a right shell (6) that engage with each other, wherein the control circuit board (4) is electrically connected to the tripping coil (2) and the display screen (3), respectively, and characterized in that: The invention also comprises an integrated tripping component (1), the integrated tripping component (1) being in a "T" shape, comprising a hinged end (11), a tripping end (12) and an input section (13), the hinged end (11) and the tripping end (12) being located on both sides of the input section (13), the hinged end (11) being rotatably connected to the right housing (6); the tripping coil (2) being fixed in the right housing (6) along the height direction of the housing, the output position of the tripping coil (2) being provided with a retractable push rod (21), the push rod (21) being in pressing contact with the input section (13) so as to lift the input section (13) through the push rod (21); the tripping end (12) extending out of the right housing (6) to form a tripping rod (121), the tripping rod (121) being connected to a corresponding circuit breaker.

2. The reliable tripping timing release according to claim 1 is characterized in that: A track block (51) is protrudingly provided inside the left housing (5), and a contact rod (14) is provided on the integrated release member (1). The contact rod (14) extends toward the left housing (5) and a top end thereof contacts a top surface of the track block (51) to form relative sliding movement.

3. The reliable tripping timing release according to claim 1 or 2, characterized in that: The right housing (6) is provided with a plurality of buckle blocks (61), and the buckle blocks (61) are buckled and connected to corresponding circuit breakers.

4. The reliable tripping timing release according to claim 1 or 2, characterized in that: The hinged end (11) is provided with a rotating hole (111), and a rotating shaft (62) is provided in the right housing (6), and the rotating shaft (62) is inserted into the rotating hole (111) to form a rotating fit.

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