Special protection integrated surge protection device

Abstract

The utility model relates to a special protection integrated surge protection device, comprising a housing used for placing an operation mechanism, a contact mechanism, a discharge mechanism, a thermal tripping mechanism and an indication mechanism; the operating mechanism is used for realizing opening and closing; the contact mechanism comprises a moving contact and a static contact, the moving contact is matched and linked with the operating mechanism, and the static contact is connected with the discharging mechanism and is arranged close to the moving contact; the discharging mechanism is used for overvoltage protection; according to the thermal tripping mechanism, when abnormal transient overvoltage impact or lightning current impact occurs in a power supply, power frequency current is increased, and a surge chip welding point is thermally disengaged from a thermal tripping piece; and the indicating mechanism is linked with the thermal tripping mechanism and is used for indicating the thermal separation state. According to the utility model, the surge protector and the backup protector are combined together to be embodied in the form of the surge protector, and the surge protector and the backup protector can accommodate a shell with the width of 18mm and the length of 90mm, so that the requirements of small installation space occupation, low residual voltage, large through-current resistance and complete specification are met.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection equipment, in particular to a special protection integrated surge protector. Background Art

[0002] Lightning disasters are one of the most serious natural disasters. Every year, countless casualties and property losses are caused by lightning disasters around the world. With the extensive application of electronic and microelectronic integrated equipment, the damage caused by lightning overvoltage and lightning electromagnetic pulses to systems and equipment is increasing. Using surge protectors to suppress surges and transient overvoltages on the line and discharge overcurrents on the line has become one of the important links in modern lightning protection technology.

[0003] Special protection protectors are suitable for places where surge protectors and other lightning protection equipment have been installed (such as industrial and civil buildings, electrical power stations, communication bases, transportation roads, petrochemical plants, etc.). They can eliminate fire hazards caused by surge protector deterioration, short circuit failure, and power grid failure, and solve the problem of surge protector failure caused by lightning.

[0004] Existing surge protectors must be used in conjunction with backup protectors when in use, and the current combination of the two is as follows: the two are independent structures when in use and are used through conductive connections, which results in a larger overall installation space, a corresponding increase in width and length, incomplete specifications, and limited applications. Summary of the invention

[0005] The purpose of the utility model is to provide a special protection integrated surge protector to solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A special protection integrated surge protector, characterized by comprising:

[0008] Shell, thermal trip mechanism and indication mechanism; thermal trip mechanism, when the power supply has abnormal transient overvoltage shock or lightning current shock, the power frequency current increases, and the surge chip welding point and the thermal trip part are thermally disconnected; the indication mechanism is linked with the thermal trip mechanism to indicate the thermal disconnection state; wherein:

[0009] The thermal release mechanism is located in the placement cavity formed by the shield, and the thermal release mechanism includes a thermal release member, a rotating shaft, and a torsion spring. One end of the rotating shaft is inserted in the placement cavity, and the torsion spring is sleeved on the rotating shaft. The thermal release member is connected to the rotating shaft and maintains an energy storage state under the action of the torsion spring. A connecting end is formed at one end of the thermal release member. The indication mechanism includes an indicating piece, a clamping color block, and a compression spring for clamping the clamping color block. The indicating piece is close to the indicating window side of the shell, and a sleeve hole is formed at one end of the indicating piece. The sleeve hole is connected to the connecting end. The end of the thermal release member with the connecting end is formed with a plug hole. The plug hole is plugged with one end of the surge chip and then welded. When an abnormal transient overvoltage shock or lightning current shock occurs in the power supply, the power frequency current increases, and the welding part melts, so that the thermal release member rotates around the rotating shaft under the action of the torsion spring, and drives the indicating piece to deviate. The indicating piece extends to the bottom of the indicating window opened on the shell, and the indicating piece deviates to one side of the indicating window, exposing the clamping color block to indicate the thermal release state.

[0010] The utility model is further arranged that the discharge mechanism includes an air discharge tube assembly, a surge chip and a shield, the shield is fixed in the shell, the surge chip is located in the shield, the air discharge tube assembly includes a connecting piece, an air discharge tube and a conductive piece, the static contact is provided with one end of the connecting piece, the connecting piece is connected to the conductive piece through the air discharge tube, one end of the conductive piece is plugged into the shell, the connecting piece and the air discharge tube are arranged at the first end of the shield, the connecting piece extends to a side away from the moving contact and is connected to the air discharge tube, and the conductive piece extends from the air discharge tube to the first side of the surge chip to one side of the indicating mechanism.

[0011] The utility model is further arranged that the indicating mechanism also includes a signal indicating component, the signal indicating component includes a micro switch, a swing arm and a torsion spring for driving the swing arm to reset, the micro switch is arranged in the shell and close to the moving contact, the swing arm is sleeved on the shell and located below the micro switch, the swing arm has a first acting arm and a second acting arm, the first acting arm is arranged close to the thermal release component, the second acting arm is arranged close to the micro switch and is linked with the micro switch, when the thermal release component rotates, the first acting arm is driven to rotate in the first direction around the rotation center of the swing arm, the second acting arm is driven to rotate in the first direction around the rotation center of the swing arm, and the micro switch sends a status signal during the rotation process.

[0012] The utility model further arranges that conductive terminals are arranged at both ends of the shell, and the conductive terminals include an inlet conductive terminal and an outlet conductive terminal, the inlet conductive terminal is connected to one end of the surge chip, and the outlet conductive terminal is softly connected to the moving contact.

[0013] The utility model is further arranged that the bottom of the shell is formed with air outlet holes, and the air outlet holes are distributed in the length direction of the surge chip.

[0014] The utility model is further arranged that the shield comprises a shield bottom and a shield cover, the shield cover is formed with hollow holes, and air flow channels are formed between the hollow holes.

[0015] The utility model is further arranged that the indicator piece is formed with an indicator end in the indicator window portion, and the indicator end is used to indicate a non-thermal detachment state. When the thermal release fastener is detached, the snap-on color block is exposed to display the thermal detachment state. A guide shaft is also arranged on the shell, and the guide shaft is arranged on one side of the indicator piece setting path.

[0016] The beneficial effects of the utility model: the utility model combines the surge protector and the backup protector together in the form of a surge protector. The combined structure can be accommodated in a shell with a width of 18mm and a length of 90mm. It occupies a small installation space, has low residual pressure, is able to withstand large current, and meets the requirements of full specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0019] Figure 2 The internal structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0020] Figure 3 The internal structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0021] Figure 4 The internal structure of the embodiment of the utility model is shown in FIG. Figure 3 .

[0022] Figure 5 The internal structure of the embodiment of the utility model is shown in FIG. Figure 4 .

[0023] Reference numerals:

[0024] 10. Shell; 101. Indicator window; 103. Snap-on color block; 104. Air outlet; 20. Operating mechanism; 30. Contact mechanism; 301. Moving contact; 302. Static contact; 40. Discharge mechanism; 401. Air discharge pipe assembly; 4011. Connecting piece; 4012. Air discharge pipe; 4013. Conductive sheet; 402. Surge chip; 403. Shield; 4031. Shield cover; 40311. Hollow hole; 4032. Shield bottom; 4033. Placement cavity; 50, thermal release mechanism; 501, thermal release member; 5011, connection end; 5012, plug hole; 503, rotation axis; 504, torsion spring; 60, inlet conductive terminal; 70, outlet conductive terminal; 80, indication mechanism; 801, indication sheet; 8011, socket hole; 8012, indication end; 802, micro switch; 803, swing arm; 8031, first action arm; 8032, second action arm; 90, compression spring; 100, guide shaft; DETAILED DESCRIPTION

[0025] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] refer to Figures 1 to 5 The utility model provides a special protection integrated surge protector, comprising:

[0027] The housing 10 is used to place the operating mechanism 20, the contact mechanism 30, the discharge mechanism 40, the thermal trip mechanism 50 and the indication mechanism 80; wherein the housing 10 is provided with conductive terminals at both ends for line connection, and the conductive terminals include an inlet conductive terminal 60 and an outlet conductive terminal 70, the inlet conductive terminal 60 is connected to one end of the surge chip 402, and the outlet conductive terminal 70 is softly connected to the moving contact 301. In this embodiment, the bottom of the housing 10 is formed with air outlet holes 104, and the air outlet holes 104 are distributed in the length direction of the surge chip 402.

[0028] The operating mechanism 20 is used to realize opening and closing and drive the moving contact 301 and the static contact 302 in the contact 301 mechanism 30 to close or open;

[0029] The contact mechanism 30 includes a moving contact 301 and a stationary contact 302. The moving contact 301 cooperates with the operating mechanism 20, and the stationary contact 302 is connected to the discharge mechanism 40 and is arranged close to the moving contact 301.

[0030] A discharge mechanism 40, for overvoltage protection;

[0031] Thermal release mechanism 50, when the power supply has an abnormal transient overvoltage shock or lightning current shock, the power frequency current increases, and the welding point of the surge chip 402 is thermally disconnected under the drive of the thermal release member 501;

[0032] The indicating mechanism 80 is linked with the thermal tripping mechanism 50 to indicate the thermal tripping state.

[0033] The discharge mechanism 40 includes an air discharge tube assembly 401, a surge chip 402 and a shield 403. The shield 403 is fixed in the shell 10. In this embodiment, the shield 403 includes a shield bottom 4032 and a shield cover 4031. The shield cover 4031 is formed with hollow holes 40311, and air flow channels are formed between the hollow holes 40311.

[0034] The surge chip 402 is located in the protective cover 403, and the air discharge pipe assembly 401 includes a connecting piece 4011, an air discharge pipe 4012 and a conductive piece 4013. The static contact 302 is provided with one end of the connecting piece 4011, and the connecting piece 4011 is connected to the conductive piece 4013 through the air discharge pipe 4012. One end of the conductive piece 4013 is plugged into the shell 10. The connecting piece 4011 and the air discharge pipe 4012 are provided at the first end of the protective cover 403. The connecting piece 4011 extends to a side away from the moving contact 301 and is connected to the air discharge pipe 4012. The conductive piece 4013 extends from the air discharge pipe 4012 to the first side of the surge chip 402 to the side of the indicating mechanism 80.

[0035] The thermal trip mechanism 50 scheme adopted in this embodiment is as follows:

[0036] The thermal release mechanism 50 is located in the placement cavity 4033 formed by the shield 403. The thermal release mechanism 50 includes a thermal release member 501, a rotating shaft 503, and a torsion spring 504. One end of the rotating shaft 503 is inserted into the placement cavity 4033. The torsion spring 504 is sleeved on the rotating shaft 503. The thermal release member 501 is connected to the rotating shaft 503 and maintains an energy storage state under the action of the torsion spring 504. A connecting end 5011 is formed at one end of the thermal release member 501. The indicating mechanism 80 includes an indicating sheet 801, a clamping color block 103, and a compression spring 90 for clamping the clamping color block 103. The indicating sheet 801 is close to the indicating window 101 of the housing 10. A sleeve hole 8011 is formed at one end of the indicating sheet 801. , the socket hole 8011 is connected to the connection end 5011, the thermal release part 501 has a connection end 5011 at one end thereof formed with a plug hole 5012, the plug hole 5012 is plugged with one end of the surge chip 402 and then welded, and when an abnormal transient overvoltage shock or lightning current shock occurs in the power supply, the power frequency current increases, the welding part melts, so that the thermal release part 501 rotates around the rotating shaft 503 under the action of the torsion spring 504, and drives the indicator piece 801 to deviate, the indicator piece 801 extends to the bottom of the indicator window 101 opened on the shell 10, and the indicator piece 801 deviates to one side of the indicator window 101, exposing the snap-in color block 103, and the color coated by the snap-in color block 103 indicates the thermal release state.

[0037] The indicating mechanism 80 in this embodiment also includes a signal indicating component, which includes a micro switch 802, a swing arm 803 and a torsion spring 1 for driving the swing arm 803 to reset. The micro switch 802 is arranged in the housing 10 and is arranged close to the moving contact 301. The swing arm 803 is sleeved on the housing 10 and is located below the micro switch 802. The swing arm 803 has a first action arm 8031 ​​and a second action arm 8032. The first action arm 8031 ​​is arranged close to the thermal release component 501, and the second action arm 8032 is arranged close to the micro switch 802 and is linked with the micro switch 802. When the thermal release component 501 rotates, the first action arm 8031 ​​is driven to rotate in the first direction around the rotation center of the swing arm 803, and the second action arm 8032 is driven to rotate in the first direction around the rotation center of the swing arm 803, and the micro switch 802 sends a status signal during the rotation process. The first direction is consistent with the direction when the thermal release component 501 rotates.

[0038] The indicator sheet 801 is located in the indicator window 101 and has an indicator end 8012 formed therein. The indicator end 8012 is used to indicate a non-thermal detachment state. When the thermal detachment fastener 501 is detached, the snap-on color block 103 is exposed to display the thermal detachment state. A guide shaft 100 is also provided on the housing 10. The guide shaft 100 is provided on one side of the path where the indicator sheet 801 is provided. The indicator sheet 801 contacts the circumferential side surface of the guide shaft 100 during the offset process.

[0039] The utility model combines a surge protector and a backup protector together in the form of a surge protector. The combined structure can be accommodated in a housing 10 with a width of 18 mm and a length of 90 mm, and has small installation space occupation, low residual pressure, large current resistance and full specifications.

[0040] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0041] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0042] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention and creation of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A dedicated integrated surge protector, characterized in that: include: Housing, thermal trip mechanism and indicating mechanism; Thermal tripping mechanism: when the power supply has an abnormal transient overvoltage shock or lightning current shock, the power frequency current increases, and the surge chip welding point and the thermal tripping component are thermally disconnected; the indicating mechanism is linked with the thermal tripping mechanism to indicate the thermal disconnection state; wherein: The thermal release mechanism is located in the placement cavity formed by the shield, and the thermal release mechanism includes a thermal release member, a rotating shaft, and a torsion spring. One end of the rotating shaft is inserted in the placement cavity, and the torsion spring is sleeved on the rotating shaft. The thermal release member is connected to the rotating shaft and maintains an energy storage state under the action of the torsion spring. A connecting end is formed at one end of the thermal release member. The indication mechanism includes an indicating piece, a clamping color block, and a compression spring for clamping the clamping color block. The indicating piece is close to the indicating window side of the shell, and a sleeve hole is formed at one end of the indicating piece. The sleeve hole is connected to the connecting end. The end of the thermal release member with the connecting end is formed with a plug hole. The plug hole is plugged with one end of the surge chip and then welded. When an abnormal transient overvoltage shock or lightning current shock occurs in the power supply, the power frequency current increases, and the welding part melts, so that the thermal release member rotates around the rotating shaft under the action of the torsion spring, and drives the indicating piece to deviate. The indicating piece extends to the bottom of the indicating window opened on the shell, and the indicating piece deviates to one side of the indicating window, exposing the clamping color block to indicate the thermal release state.

2. A dedicated protection integrated surge protector as claimed in claim 1, characterized in that: It also includes a discharge mechanism, which includes an air discharge pipe assembly, a surge chip and a shield, the shield is fixed in the shell, the surge chip is located in the shield, the air discharge pipe assembly includes a connecting piece, an air discharge pipe and a conductive piece, the static contact is provided with one end of the connecting piece, the connecting piece is connected to the conductive piece through the air discharge pipe, one end of the conductive piece is plugged into the shell, the connecting piece and the air discharge pipe are provided at the first end of the shield, the connecting piece extends to a side away from the moving contact and is connected to the air discharge pipe, and the conductive piece extends from the air discharge pipe to the first side of the surge chip to the side of the indicating mechanism.

3. A dedicated protection integrated surge protector as claimed in claim 1 or 2, characterized in that: The indicating mechanism also includes a signal indicating component, which includes a micro switch, a swing arm and a torsion spring for driving the swing arm to reset. The micro switch is arranged in the housing and close to the moving contact. The swing arm is sleeved on the housing and located below the micro switch. The swing arm has a first acting arm and a second acting arm. The first acting arm is arranged close to the thermal release component, and the second acting arm is arranged close to the micro switch and is linked with the micro switch. When the thermal release component rotates, the first acting arm is driven to rotate in a first direction around the rotation center of the swing arm, and the second acting arm is driven to rotate in the first direction around the rotation center of the swing arm, and the micro switch sends a status signal during the rotation process.

4. A dedicated protection integrated surge protector as claimed in claim 1, characterized in that: Conductive terminals are arranged at both ends of the housing, and the conductive terminals include an inlet conductive terminal and an outlet conductive terminal. The inlet conductive terminal is connected to one end of the surge chip, and the outlet conductive terminal is softly connected to the moving contact.

5. A dedicated protection integrated surge protector as claimed in claim 1, characterized in that: The bottom of the shell is formed with air outlet holes, and the air outlet holes are distributed in the length direction of the surge chip.

6. A dedicated protection integrated surge protector as claimed in claim 1, characterized in that: The shield comprises a shield bottom and a shield cover. Hollow holes are formed on the shield cover, and air flow channels are formed between the hollow holes.

7. A dedicated protection integrated surge protector as claimed in claim 1, characterized in that: The indicator piece is formed with an indicator end in the indicator window portion, and the indicator end is used to indicate a non-thermal detachment state. When the thermal release buckle is detached, the snap-on color block is exposed to display the thermal detachment state. A guide shaft is also provided on the shell, and the guide shaft is provided on one side of the indicator piece setting path.

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