Alternating current release time-delay relay without control end

Abstract

The invention discloses an AC release time-delay relay without a control end, and the relay comprises a seat plate assembly, four rows of pins are uniformly distributed on a seat plate, one end of each pin extends out of the upper end surface of the seat plate, the tops of the pins at the two ends are respectively provided with a first static contact and a second static contact, and the lower ends of the pins extend out of the bottom of the seat plate; a coil support and a reset coil are arranged in the driving assembly, the coil support and the reset coil are installed at the two ends of the coil support respectively, magnetic poles are installed at the two tail ends of the coil support respectively, an armature is installed below the magnetic poles through a rotating shaft, and the rotating shaft is further provided with a contact installation base. The bottom of the contact mounting seat is provided with a plurality of mutually parallel arched reeds; two ends of the arched reeds are respectively provided with a movable contact and a second static contact; the top of the outer cover is further provided with a control module, the control module is connected with one row of pins in the middle of the seat plate through a wire, the electromagnetic driving part is of a double-magnetic-steel differential type magnetic system structure, and the structure has the advantages of being small in permanent magnet flux air gap closed path, high in environment index, reliable in switching, large in switching capacity, small in heat productivity and the like. And the reliability of the product is ensured by a time-delay circuit independently installed in the relay.

Description

Technical Field

[0001] The present invention relates to the field of relays, and in particular to an AC release delay relay without a control terminal. Background Art

[0002] With the development of the large aircraft industry chain, COMAC has developed domestic suppliers of relays and contactors. However, existing relays require additional control circuits such as delay circuits outside the relay. For example, the relay delay shutdown circuit and relay control method disclosed in CN119626839A discloses a delay module that receives a first safety signal, a second safety signal, and a control group signal, and outputs a first enable signal, a second enable signal, and a safety status signal. When the microcontroller chip is reset, the first enable signal delays the shutdown action of the relay driver module until a preset time is exceeded, and the preset time is greater than the reset time of the microcontroller chip. The power control chip and microcontroller chip output the first safety signal and the second safety signal based on their respective safety status, thereby improving the safety of the relay delay shutdown circuit through dual safety status determination. However, this circuit requires the placement of this circuit outside the relay, making its safety performance dependent on external control circuitry. Summary of the Invention

[0003] The purpose of the present invention is to address the problem that existing relays require an external control module for control, which poses a safety hazard.

[0004] The technical solution of the present invention: An AC release delay relay without a control terminal includes a base plate assembly, which includes a base plate; four rows of pins are evenly distributed on the base plate, one end of the pins extends out of the upper end surface of the base plate, and the tops of the pins at both ends are respectively installed with a first static contact and a second static contact, and the lower ends of the pins extend out of the bottom of the base plate; a drive assembly, wherein a coil bracket and a reset coil are provided in the drive assembly, and the coil bracket and the reset coil are respectively installed at the two ends of the coil bracket, and the two ends of the coil bracket are also respectively installed with magnetic poles, and an armature is installed below the magnetic pole through a rotating shaft, and the rotating shaft is also installed There is a contact mounting seat, and a plurality of mutually parallel bow-shaped springs are installed at the bottom of the contact mounting seat, and a moving contact and a second static contact are respectively installed at both ends of the bow-shaped spring; the seat plate is fixed at the opening at the bottom of the outer cover, and the drive assembly is installed in the middle of the control module, and the moving contact and the second static contact are respectively opposite to the first static contact and the second static contact; the top of the outer cover is also installed with a control module, and the control module is connected to one row of pins in the middle of the seat plate through a wire, and the middle of the bow-shaped spring is connected to the other row of pins in the middle of the seat plate through a bow-shaped connecting piece.

[0005] The magnetic pole includes a first additional pole, a second magnetic pole, a first magnetic pole, and a second additional pole. The second magnetic pole and the first magnetic pole are respectively fixed to the two ends of the coil bracket, and the first additional pole and the second additional pole are respectively fixed to the second magnetic pole and the first magnetic pole through magnetic steel.

[0006] The first additional pole, the second magnetic pole, the first magnetic pole, and the second additional pole are all arranged vertically. The second magnetic pole and the first magnetic pole have the same length and the lower ends are respectively processed with relatively vertical bends. The bottoms of the first additional pole and the second additional pole are both lower than the second magnetic pole or the second additional pole, and are processed with relative and downward-inclined bends.

[0007] The bent sides of the bottom of the second magnetic pole and the second additional pole are respectively connected to the top of a bearing frame, and the rotating shaft is hinged to the bottom of the bearing frame.

[0008] The two ends of the armature are respectively placed above the first additional pole and the second additional pole.

[0009] The middle part of the contact mounting seat is fixed on the rotating shaft, and the contact mounting seat is made of insulating material. Beneficial effects of the present invention: The electromagnetic drive utilizes a dual-magnet differential magnetic system structure, which offers advantages such as a closed permanent magnet flux path with a small air gap, high environmental performance, reliable switching, high switching capacity, and low heat generation. A delay circuit independently installed within the relay ensures product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of a time delay relay.

[0011] Figure 2 This is a schematic diagram of the relay drive component structure.

[0012] Figure 3 This is a schematic diagram of the base plate assembly structure of the time delay relay.

[0013] Figure 4 This is a schematic diagram of the working principle of the time delay relay.

[0014] Figure 5 This is a schematic diagram of the delay circuit structure of the delay relay.

[0015] Figure markings: 1-outer cover, 2-control module, 3-drive assembly, 301-first additional pole, 302-magnet, 303-second magnetic pole, 304-coil bracket, 305-self-holding coil, 306-reset coil, 307-first magnetic pole, 308-second additional pole, 309-rotating shaft, 310-bearing frame, 311-armature, 4-base plate assembly, 401-base plate, 402-first moving contact, 403-contact mounting seat, 404-second moving contact, 405-second static contact, 407-outer lead rod, 408-first static contact, 5-insulating gasket, 6-steel ball. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0017] like Figure 3 As shown, the seat plate assembly 4 includes a seat plate 401, characterized in that: four rows of pins 407 are evenly distributed on the seat plate 401, one end of the pin 407 extends out of the upper end surface of the seat plate 401, and the tops of the pins 407 at both ends are respectively installed with a first static contact 408 and a second static contact 405, and the lower ends of the pins 407 extend out of the bottom of the seat plate 401; like Figure 2 As shown, the drive assembly 3 includes a coil holder 304 and a reset coil 306, which are respectively mounted at both ends of the coil holder 304. Magnetic poles are also mounted at both ends of the coil holder 304. An armature 311 is mounted below the magnetic pole via a rotating shaft 309. A contact mounting seat 403 is also mounted on the rotating shaft 309. A plurality of mutually parallel bow-shaped springs 404 are mounted at the bottom of the contact mounting seat 403. A moving contact 402 and a second static contact 405 are respectively mounted at both ends of the bow-shaped spring 404. The base plate 401 is fixed to the opening at the bottom of the outer cover 1, the drive assembly 3 is installed in the middle of the control module 2, the moving contact 402 and the second static contact 405 are opposite to the first static contact 408 and the second static contact 405 respectively, and the control module 2 is also installed on the top of the outer cover 1. The control module 2 is connected to one row of pins 407 in the middle of the base plate 401 through a wire, and the middle of the bow-shaped spring piece 404 is connected to the other row of pins 407 in the middle of the base plate 401 through a bow-shaped connecting piece 406.

[0018] The magnetic poles include a first additional pole 301, a second magnetic pole 303, a first magnetic pole 307, and a second additional pole 308. The second magnetic pole 303 and the first magnetic pole 307 are respectively fixed to the two ends of the coil bracket 304, and the first additional pole 301 and the second additional pole 308 are respectively fixed to the second magnetic pole 303 and the first magnetic pole 307 through the magnetic steel 302.

[0019] The first additional pole 301, the second magnetic pole 303, the first magnetic pole 307, and the second additional pole 308 are all arranged vertically. The second magnetic pole 303 and the first magnetic pole 307 have the same length and are respectively processed with relatively vertical bends at the lower ends. The bottoms of the first additional pole 301 and the second additional pole 308 are both lower than the second magnetic pole 303 or the second additional pole 308, and are processed with relative and downward-inclined bends.

[0020] The bent sides of the bottom of the second magnetic pole 303 and the second additional pole 308 are respectively connected to the top of a bearing frame 310 , and the rotating shaft 309 is hinged to the bottom of the bearing frame 310 .

[0021] Two ends of the armature 311 are respectively placed above the first additional pole 301 and the second additional pole 308 .

[0022] The middle part of the contact mounting seat 403 is fixed on the rotating shaft 309, and the contact mounting seat 403 is made of insulating material. Figure 1 The top of the housing is sealed by spot welding of steel balls 6.

[0023] like Figure 3 As shown, the delay circuit of the present invention combines the structural characteristics of the product to step down and stabilize the input AC power supply before outputting it to the product coil. When the circuit is powered on normally, the product delay circuit first steps down and stabilizes the power supply and distributes it to the self-holding coil. The product is activated, the normally closed contact opens, and the normally open contact closes. After the product is activated, the product delay circuit energy storage unit is charged, and the power supply after stepping down and stabilization no longer flows through the product coil to reduce product heating. When the external input power supply is less than the threshold voltage, the first energy storage unit starts to supply power to the control unit, and the timing starts. When the given delay time is reached, the second energy storage unit starts to discharge and supplies power to the reset coil, causing the normally open contact to open and the normally closed contact to close. If the input voltage returns to the operating voltage during the relay entering the delayed release process, the relay delay is canceled and the product remains connected.

[0024] Small size and light weight. Since the product lacks a control terminal for delay control, it relies entirely on the energy storage unit to drive the relay. This time-delay relay integrates multiple electronic components into the PCB, significantly reducing the product's size and weight. It offers high load capacity and reliability. It utilizes a 10A four-way switching latching relay with a balanced force structure, featuring a permanent magnetic flux, small air gap closed path, high environmental performance, reliable switching, large switching capacity, and low heat generation.

[0025] The sealing element is sealed using laser welding and steel ball spot welding, and is filled with nitrogen, ensuring excellent sealing and arc interruption capabilities. The electromagnetic drive utilizes a dual-magnet differential magnetic system structure, which offers advantages such as a closed permanent magnet flux path with a small air gap, high environmental performance, reliable switching, high switching capacity, and low heat generation. The contact system, consisting of a base plate assembly and other components, provides an external output interface. The product's delay function is primarily implemented by a delay circuit. This circuit does not utilize a microprocessor or software, ensuring product reliability. Insulating gaskets are used in the delay circuit to prevent the risk of internal short circuits.

Claims

1. An AC release delay relay without a control terminal, characterized in that: include: A seat plate assembly (4), the seat plate assembly (4) includes a seat plate (401), characterized in that: four rows of pins (407) are evenly distributed on the seat plate (401), one end of the pin (407) extends out of the upper end surface of the seat plate (401), and the tops of the pins (407) at both ends are respectively installed with a first static contact (408) and a second static contact (405), and the lower ends of the pins (407) extend out of the bottom of the seat plate (401); A drive assembly (3), wherein a coil support (304) and a reset coil (306) are provided in the drive assembly (3), the coil support (304) and the reset coil (306) are respectively mounted at two ends of the coil support (304), magnetic poles are respectively mounted at the two ends of the coil support (304), an armature (311) is mounted below the magnetic pole via a rotating shaft (309), the rotating shaft (309) is further mounted with a contact mounting seat (403), a plurality of mutually parallel bow-shaped springs (404) are mounted at the bottom of the contact mounting seat (403), and a moving contact (402) and a second static contact (405) are respectively mounted at two ends of the bow-shaped spring (404); The seat plate (401) is fixed to the opening at the bottom of the outer cover (1), the drive assembly (3) is installed in the middle of the control module (2), the moving contact (402) and the second static contact (405) are respectively opposite to the first static contact (408) and the second static contact (405), and the control module (2) is also installed on the top of the outer cover (1). The control module (2) is connected to one row of pins (407) in the middle of the seat plate (401) through a wire, and the middle of the bow-shaped spring (404) is connected to another row of pins (407) in the middle of the seat plate (401) through a bow-shaped connecting piece (406).

2. The AC release delay relay without a control terminal according to claim 1, characterized in that: The magnetic poles include a first additional pole (301), a second magnetic pole (303), a first magnetic pole (307), and a second additional pole (308); the second magnetic pole (303) and the first magnetic pole (307) are respectively fixed to two ends of a coil support (304); and the first additional pole (301) and the second additional pole (308) are respectively fixed to the second magnetic pole (303) and the first magnetic pole (307) via magnetic steel (302).

3. The AC release delay relay without a control terminal according to claim 1, characterized in that: The first additional pole (301), the second magnetic pole (303), the first magnetic pole (307), and the second additional pole (308) are all arranged vertically. The second magnetic pole (303) and the first magnetic pole (307) have the same length and are processed with relatively vertical bends at their lower ends. The bottoms of the first additional pole (301) and the second additional pole (308) are lower than the second magnetic pole (303) or the second additional pole (308), and are processed with relatively downwardly inclined bends.

4. The AC release delay relay without a control terminal according to claim 3, characterized in that: The bent sides of the bottom of the second magnetic pole (303) and the second additional pole (308) are respectively connected to the top of a bearing frame (310), and the rotating shaft (309) is hinged to the bottom of the bearing frame (310).

5. The AC release delay relay without control terminal according to claim 1, characterized in that: The two ends of the armature (311) are respectively placed above the first additional pole (301) and the second additional pole (308).

6. The AC release delay relay without control terminal according to claim 1, characterized in that: The middle portion of the contact mounting seat (403) is fixed on the rotating shaft (309), and the contact mounting seat (403) is made of insulating material.

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