Surge protection device with backup voltage limiting protection

Abstract

The utility model discloses a surge protection device with backup voltage-limiting protection. A left side backup protection area is connected with a right side surge discharge area B connection point. A static contact of a backup switch of the left backup protection area is electrically connected with a wire inlet end of the surge protection device, a moving contact of the backup switch of the left backup protection area is electrically connected with the one-way gap, and two terminals of the one-way gap of the left backup protection area, the gas discharge tube and the electromagnetic coil are connected in parallel and are electrically connected with a connection point B of the left backup protection area; the B connection point is electrically connected with a T2 voltage-limiting piezoresistor, the T2 piezoresistor is electrically connected with a low-temperature disconnecting connection sheet, the low-temperature disconnecting connection sheet is electrically connected with a C connection point of the right surge discharge area, and the C connection point is electrically connected with the grounding end of the left backup protector area; and the backup switch trips and resets to drive the remote signaling switch to output a prompt signal in a remote signaling manner. The use safety protection performance is improved, and the phenomenon of damage to a protected circuit or product is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a surge protector, especially a surge protector with backup voltage limiting protection. BACKGROUND

[0002] The surge protector is also called a lightning protection device, which is an electronic device for providing safety protection for various electronic devices, instruments, communication lines, etc. When a sharp peak current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt in a very short time, thereby avoiding damage to other devices in the circuit caused by the surge. The surge protector is usually used in an AC 50 / 60 Hz, rated voltage 220V / 380V power supply system to protect against indirect lightning and direct lightning or other transient overvoltage surges. It is widely used in residential homes, the tertiary industry, and industrial fields that require surge protection.

[0003] The authorized patent number ZL202220940751.1, published on October 21, 2022, discloses a lightning protection engineering surge protector, which includes a sliding rail body, an electrical surge protector body longitudinally connected to the surface of the sliding rail body, a moving rod transversely connected to the inside of the sliding rail body through a limiting groove and a limiting rod, an active slot opened at the top and bottom of the moving rod, and a connecting rod connected to the inside of the active slot through a pin shaft. The utility model solves the problem of improving the stability of the existing surge protector by setting the sliding rail body, the electrical surge protector body, the moving rod, the active slot, the connecting rod, the plug rod, the round block, the support plate, the spring, the clamping groove, the fixed plate, the outlet, and the push rod. The electrical surge protector is generally fixed and used by sliding on the surface of the sliding rail during use. The sliding rail can only limit the electrical surge protector, but cannot effectively ensure that the electrical surge protector is stably placed on the surface of the sliding rail, thereby reducing the stability of the electrical surge protector. This scheme also does not have backup voltage limiting protection, which may cause damage to the protected lines or products during the safety protection process. SUMMARY

[0004] The utility model provides a surge protector with backup voltage limiting protection to solve the problem of the existing surge protector not having backup voltage limiting protection, which may cause damage to the protected lines or products during the safety protection process. The surge protector can provide backup voltage limiting protection for electronic devices, instruments, communication lines, etc., greatly improve the safety protection, and effectively avoid damage to the protected lines or products.

[0005] The utility model discloses a specific technical scheme that solves the above technical problem is: a kind of surge protector with backup voltage limiting protection, including left side backup protection area, right side surge discharge area, right side surge discharge area is accompanied by fault telesignalling output switch, the B connecting point of left side backup protection area and the B connecting point of right side surge discharge area are electrically connected;The KG-1 end fixed contact of the backup switch of left side backup protection area is electrically connected with the incoming line end of surge protector, the KG-2 end movable contact of the backup switch of left side backup protection area is electrically connected with the JX-1 end of one-way gap, the JX-1 terminal of the one-way gap of left side backup protection area, the FDG-1 terminal of gas discharge tube and the DCX-1 terminal of electromagnetic coil are parallelly connected and are electrically connected with the A connecting point of left side backup protection area;The JX-2 terminal of the one-way gap of left side backup protection area, the FDG-2 terminal of gas discharge tube and the DCX-2 terminal of electromagnetic coil are parallelly connected and are electrically connected with the B connecting point of left side backup protection area;The B connecting point of right side surge discharge area is electrically connected with the MOV-1 terminal of T2 voltage limiting type pressure-sensitive resistor, the MOV-2 terminal of T2 voltage limiting type pressure-sensitive resistor is electrically connected with the WD-1 terminal of low-temperature separation connecting piece, the WD-2 terminal of low-temperature separation connecting piece is electrically connected with the C connecting point of right side surge discharge area, and the C connecting point of right side surge discharge area is electrically connected with the ground terminal of left side backup protection area;The backup switch of left side backup protection area and the T2 voltage limiting type pressure-sensitive resistor of right side surge discharge area, low-temperature separation connecting piece are electrically connected with telesignalling switch protection, and telesignalling switch remote telesignalling output prompt signal is provided with backup switch voltage limiting protection function for electronic equipment, instrument, communication line by the above combination protection and telesignalling delivery prompt of left side backup protection area, right side surge discharge area and fault telesignalling output switch, more greatly improves use safety protection, and more effectively avoids the damage phenomenon to the protected line or product occurs.

[0006] Preferably, the C connecting point of the right side surge discharge area is electrically connected with the C connecting point of the left side backup protection area. The combination protection effectiveness of the right side surge discharge area and the left side backup protection area is improved.

[0007] Preferably, the electromagnetic coil DCX, the gas discharge tube FDG and the one-way gap JX together form a step-up through-flow backup protector. The corresponding protection gradient safety reliability effectiveness is improved under the condition of gradually increasing lightning surge.

[0008] The utility model discloses an advantageous effect is: through left side reserve protection area, right side electric surge release area and the above-mentioned combination protection and remote transmission of the output switch of fault telecommunication, can provide reserve switch voltage limiting protection effect for electronic equipment, instrument, communication circuit, more greatly improve the use safety protection nature, more effectively avoid the damage phenomenon to the protected circuit or product to take place. Provide corresponding step-by-step protection gradient safety reliable effectiveness under the condition of lightning surge gradually increasing. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model makes further detailed explanation in combination with the drawings and specific embodiment.

[0010] Figure 1 It is the electrical principle structure schematic diagram of the utility model discloses a surge protection device with reserve voltage limiting protection.

[0011] Figure 2 It is the structure schematic diagram of left side reserve protection area in the utility model discloses a surge protection device with reserve voltage limiting protection.

[0012] Figure 3 It is the structure schematic diagram of right side electric surge release area in the utility model discloses a surge protection device with reserve voltage limiting protection.

[0013] Figure 4 It is the structure schematic diagram of the utility model discloses a surge protection device with reserve voltage limiting protection. SPECIFIC EMBODIMENT

[0014] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4In the embodiment shown, a surge protector with backup voltage limiting protection includes a left backup protection zone 10, a right surge discharge zone 20, a right surge discharge zone with a fault remote signaling output switch YX, and the B connection point of the left backup protection zone 10 and the B connection point of the right surge discharge zone 20 are electrically connected; the KG-1 static contact of the backup switch KG of the left backup protection zone 10 is electrically connected with the incoming line end of the surge protector, the KG-2 moving contact of the backup switch KG of the left backup protection zone 10 is electrically connected with the JX-1 end of the one-way gap JX, the JX-1 terminal of the one-way gap JX of the left backup protection zone 10, the FDG-1 terminal of the gas discharge tube FDG, and the DCX-1 terminal of the electromagnetic coil DCX are electrically connected in parallel and are electrically connected with the A connection point of the left backup protection zone 10; the JX-2 terminal of the one-way gap JX of the left backup protection zone, the FDG-2 terminal of the gas discharge tube FDG, and the DCX-2 terminal of the electromagnetic coil DCX are electrically connected in parallel and are electrically connected with the B connection point of the left backup protection zone 10; the B connection point of the right surge discharge zone 20 is electrically connected with the MOV-1 terminal of the T2 voltage limiting type pressure sensitive resistor MOV, the MOV-2 terminal of the T2 voltage limiting type pressure sensitive resistor MOV is electrically connected with the WD-1 terminal of the low-temperature disconnection tab WD, the WD-2 terminal of the low-temperature disconnection tab WD is electrically connected with the CR connection point of the right surge discharge zone 20, and the CR connection point of the right surge discharge zone 20 is electrically connected with the ground terminal of the left backup protection zone 10; the backup switch trip reset drives the remote signaling switch remote signaling output to prompt the signal.

[0015] The C connection point of the right surge discharge zone 10 is electrically connected with the C connection point of the left backup protection zone 20.

[0016] The electromagnetic coil DCX, the gas discharge tube FDG, and the one-way gap JX together form a step-by-step increasing through-flow backup protector.

[0017] In use, the T2 voltage limiting type surge protector is connected in the following manner:

[0018] First, the KG-1 static contact is introduced from the left backup protector zone incoming line end, then the KG-2 moving contact is connected to the A point, the two ends of the DCX, FDG, and JX components are connected to the A point and the B point in parallel, then the B point is connected to the B point of the right surge discharge zone, the MOV-2 of the MOV component and the WD-1 of the WD component are connected in the right surge discharge zone, the MOV-1 of the MOV component is connected to the B point, the WD-2 of the WD component is connected to the CR point, and the CR point is connected to the ground terminal of the left backup protector zone.

[0019] The working principle of the T2 voltage limiting type surge protector is as follows:

[0020] The KG-1 static contact is introduced through the left backup protector area incoming line end, the KG backup switch is closed, and then the KG-2 movable contact is connected to point A,

[0021] To improve the stability of the backup protector, the application adopts DCX, FDG and JX components to form a step-by-step increasing through-flow design, and the Un voltage is transmitted from DCX to point B under no lightning surge state, when the lightning surge energy reaches a certain degree, the FDG is first started to conduct to point B, and with the increase of the lightning surge, the JX component is started to conduct to point B, and when the MOV component in the right surge discharge area detects that point B is in a high voltage and large current state under lightning surge, the MOV component is started to conduct to the ground to maintain a voltage limiting type linear discharge of lightning surge until the discharge is completed.

[0022] T2 voltage limiting type surge protector fault protection and remote signaling output working principle:

[0023] Power frequency continuous flow protection: when the MOV component in the right surge discharge area is short-circuited due to failure, causing power frequency continuous flow and affecting the main line work, in order not to affect the normal work of the main line, the surge protector needs to be disconnected from the main line, and the DCX component in the left backup protection area is started to conduct to the ground to cause the KG component to act and disconnect the MOV component in the right surge discharge area, and drive the YX (remote signaling switch) to act and send a remote signaling output prompt signal

[0024] 2. MOV component over-temperature protection: when the MOV component in the right surge discharge area is over-temperature, the WD component low-temperature solder is melted, and the WD (low-temperature disconnection piece) is disconnected under the action of the compression spring, and the indication piece is separated, the right surge discharge area window displays red, and the linkage spring 2 is driven in turn, and the self-locking mechanism is driven to cause the KG component to act and drive the YX (remote signaling switch) to act and send a remote signaling output prompt signal.

[0025] In the positional relationship description of the utility model, the terms such as "inner", "outer", "upper", "lower", "left", "right" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0026] The above content and structure describe the basic principle, main features and advantages of the utility model, which should be understood by the skilled in the art. The above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model. These changes and improvements are all within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A surge protector with backup voltage limiting protection, characterized by: The B connecting point of the left backup protection area and the B connecting point of the right surge discharge area are electrically connected; the KG-1 static contact of the backup switch of the left backup protection area is electrically connected with the incoming line end of the surge protector, the KG-2 moving contact of the backup switch of the left backup protection area is electrically connected with the JX-1 end of the one-way gap, the JX-1 terminal of the one-way gap, the FDG-1 terminal of the gas discharge tube and the DCX-1 terminal of the electromagnetic coil are electrically connected in parallel and are electrically connected with the A connecting point of the left backup protection area; the JX-2 terminal of the one-way gap, the FDG-2 terminal of the gas discharge tube and the DCX-2 terminal of the electromagnetic coil are electrically connected in parallel and are electrically connected with the B connecting point of the left backup protection area; the B connecting point of the right surge discharge area is electrically connected with the MOV-1 terminal of the T2 voltage limiting type pressure sensitive resistor, the MOV-2 terminal of the T2 pressure sensitive resistor is electrically connected with the WD-1 terminal of the low-temperature disconnection piece, the WD-2 terminal of the low-temperature disconnection piece is electrically connected with the CR connecting point of the right surge discharge area, the CR connecting point of the right surge discharge area is electrically connected with the ground end of the left backup protection area; the backup switch tripping reset drives the remote signaling switch to remotely signal output the prompt signal.

2. The surge protector with backup voltage limiting protection according to claim 1, wherein: The CR connecting point of the right surge discharge area is electrically connected with the CR connecting point of the left backup protection area.

3. The surge protector with backup voltage limiting protection of claim 1, wherein: The electromagnetic coil DCX, the gas discharge tube FDG and the one-way gap JX together form a step-by-step increasing through-flow backup protector.

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