Separation mechanism for surge protection device

Abstract

The utility model discloses a disengaging mechanism for a surge protection device. A pivot fulcrum A, a pivot fulcrum B, a guide groove A and a guide groove B are arranged on an insertion core of the disengaging mechanism. The separation indicating piece is provided with a first protruding point, a second protruding point and a guide hole, the separation indicating piece can be rotationally connected around a pivoting fulcrum A on the insertion core, and one end of the separation indicating piece abuts against the tension spring to keep a rotating reset trend; the surge protector element is provided with a pin A and a pin B which are respectively inserted into the guide groove A and the guide groove B through pins; the disengagement indicating member is respectively abutted against the surge protector element and the tripping mechanism for driving. According to the scheme, the rotation radius of the second protruding point on the disengagement indicating piece is larger than that of the first protruding point, the second protruding point abuts against the tripping rod, so that the safety distance between the tripping rod and a pin B on the surge protection device element capable of bearing surge energy is increased, and the situation that electric arcs exist between the pin B and the tripping rod can be avoided by increasing the distance; therefore, the cutting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a disengagement mechanism for a surge protector. Background Art

[0002] A surge protector is a type of protector used to protect electronic products from overvoltage and lightning current shocks. Usually, electronic surge protection components such as varistors and gas discharge tubes are housed in an insulating housing, and one of the connection terminals of the varistor is directly led to the outside of the insulating housing and set as one of the electrical connection contact parts of the surge protector, while the other electrical connection contact part led to the outside of the insulating housing needs to be connected to the second connection terminal of the varistor and a mechanical detachment mechanism that can operate after the temperature melts the solder, so that when a high voltage or current flows through the varistor and melts the solder, the second connection terminal can be effectively isolated by the mechanical detachment mechanism, so that the arc is effectively disconnected and the electrical gap is increased, thereby protecting electronic products from damage caused by overvoltage and lightning current shocks.

[0003] As electronic equipment becomes increasingly miniaturized, the entire equipment expects smaller and smaller components. The original wide-body structure surge protector is less and less suitable for the requirements of increasingly miniaturized equipment due to its large space occupation. However, the narrower structure surge protector is limited by space, and the electrical gap formed after thermal separation is generally small (for example: about 3mm). With the increase of the voltage of the transmission grid, according to the relevant provisions of GB / T18802.11-2020: Under some voltage levels, the electrical gap should be 5.5mm or even larger. Only a larger electrical gap can have a better arc isolation effect and ensure the safety of equipment power use.

[0004] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a disengagement mechanism for a surge protector, which is used to solve the problem that as electronic equipment becomes increasingly miniaturized, the various components of the entire equipment are expected to become smaller and smaller, and the original wide-body structure surge protector occupies a large space and is increasingly unable to meet the requirements of increasingly miniaturized equipment.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a disengagement mechanism for a surge protector, comprising a plug core, a disengagement indicator, a pin, a tension spring, a surge protector element and a tripping mechanism, wherein the plug core is provided with a pivot fulcrum A, a pivot fulcrum B, a guide groove A and a guide groove B; the disengagement indicator is provided with a first protrusion point, a second protrusion point and a guide hole, the disengagement indicator can be rotated and connected around the pivot fulcrum A on the plug core, and one end of the disengagement indicator abuts against the tension spring to maintain a rotational reset trend; the surge protector element is provided with a pin A and a pin B, which are respectively inserted into the guide groove A and the guide groove B through the pin; the disengagement indicator abuts against the surge protector element and the tripping mechanism for driving.

[0007] In order to improve the ease of use of the disengagement mechanism for the surge protector, the solution adopted by the utility model is: the first protrusion point and the second protrusion point arranged on the disengagement indicator are on the right side of the disengagement indicator and are consistent with the rotation direction of the pivot point A, and their protrusion surfaces are arranged in close proximity.

[0008] In order to improve the use convenience of the disengagement mechanism for the surge protector, the solution adopted by the utility model is that the rotation radius of the first protrusion point is greater than that of the second protrusion point.

[0009] In order to improve the ease of use of a disengagement mechanism for a surge protector, the utility model adopts a solution as follows: a disengagement rod is provided on the tripping mechanism, and a buckle is also provided on the tripping mechanism, and the buckle is connected to a disengagement guide, and the disengagement rod is connected to a pin B on a surge protector element capable of carrying surge energy by welding material to form a thermal tripping point having the function of melting under temperature to produce a thermal tripping effect.

[0010] In order to improve the ease of use of the disengagement mechanism for the surge protector, the utility model adopts a solution that the disengagement guide provided on the tripping mechanism is inserted into the pivot point B provided on the plug core, and the rotation direction of the disengagement guide rotates synchronously with the disengagement indicator and the direction is consistent.

[0011] In order to further improve the ease of use of the disengagement mechanism for the surge protector, the present invention adopts a solution in which the first protruding point and the second protruding point are set to have the same model parameters.

[0012] In order to further improve the convenience of use of the disengagement mechanism for the surge protector, the solution adopted by the utility model is that the pin A and the pin B are set to have the same model parameters.

[0013] In order to further improve the use convenience of the disengagement mechanism for the surge protector, the present invention adopts a solution that: the pivot point A and the pivot point B are set to have the same model parameters.

[0014] In order to further improve the convenience of use of the disengagement mechanism for the surge protector, the solution adopted by the utility model is that the guide groove A and the guide groove B are set to have the same model parameters.

[0015] The beneficial effects of the utility model are as follows: the rotation radius of the second protrusion point on the disengagement indicator of the disengagement mechanism of the surge protector is greater than that of the first protrusion point, and the abutment of the second protrusion point with the trip rod increases the safety distance between the trip rod and the pin B on the surge protector element that can carry surge energy, and the increased distance can avoid the situation where an arc exists between the pin B and the trip rod, thereby improving the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model when the varistor electrode is connected to the tripping electrode;

[0017] Figure 2 It is a schematic diagram of the structure of an embodiment of the utility model when the low-temperature welding point is melted;

[0018] Figure 3 It is an exploded view of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model before improvement;

[0020] Figure 5 It is a schematic diagram of the improved structure of the utility model.

[0021] In the figure: 1 plug core, 11 pivot fulcrum A, 12 pivot fulcrum B, 13 guide groove A, 14 guide groove B, 2 disengagement indicator, 21 first protrusion point, 22 second protrusion point, 23 guide hole, 3 pins, 4 tension spring, 5 surge protector element, 51 pin A, 52 pin B, 6 tripping mechanism, 61 disengagement lever, 62 buckle ring, 7 thermal tripping point. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3The utility model discloses a disengagement mechanism for a surge protector, comprising a plug core 1, a disengagement indicator 2, a pin 3, a tension spring 4, a surge protector element 5 and a tripping mechanism 6, wherein the plug core 1 is provided with a pivot fulcrum A11, a pivot fulcrum B12, a guide groove A13 and a guide groove B14; the disengagement indicator 2 is provided with a first protrusion point 21, a second protrusion point 22 and a guide hole 23, the disengagement indicator 2 can be rotated and connected around the pivot fulcrum A11 on the plug core 1, and one end of the disengagement indicator 2 abuts against the tension spring 4 to maintain a rotational reset trend; the surge protector element 5 is provided with a pin A51 and a pin B52, which are respectively inserted into the guide groove A14 and the guide groove B13 through the pin 3; the disengagement indicator 2 abuts against the surge protector element 5 and the tripping mechanism 6 for driving.

[0024] Furthermore, the first protruding point 21 and the second protruding point 22 provided on the detachment indicator 2 are located on the right side of the detachment indicator 2 and are in the same rotation direction as the pivot point A11, and the protruding surfaces thereof are arranged at nearly 90 degrees.

[0025] Furthermore, the rotation radius of the first protruding point 21 is greater than that of the second protruding point 22 .

[0026] Furthermore, the tripping mechanism 6 is provided with a disengagement rod 61, and the tripping mechanism 6 is also provided with a buckle 62, and the buckle 62 is connected to the disengagement guide 61, and the disengagement rod 61 is connected to the pin B52 on the surge protector element 5 that can carry surge energy through welding material to form a thermal tripping point 7 with the function of melting under temperature to produce a thermal tripping effect.

[0027] Furthermore, the disengagement guide 61 provided on the release mechanism 6 is inserted into the pivot point B12 provided on the insert 1 , and the rotation direction of the disengagement guide 61 is synchronously rotated with the disengagement indicator 2 and the direction is consistent.

[0028] Furthermore, the first protruding point 21 and the second protruding point 22 are set to have the same model parameters.

[0029] Furthermore, the pin A51 and the pin B52 are set to the same model parameters.

[0030] Furthermore, the pivot point A11 and the pivot point B12 are set to have the same model parameters.

[0031] Furthermore, the guide groove A13 and the guide groove B14 are set to have the same model parameters.

[0032] See also Figure 4-5The working principle of the utility model is: when the product is in a normal state, the first protruding point 21 on the disengagement indicator 2 abuts against the disengagement rod 61 on the tripping mechanism 6; when the product is thermally disengaged, under the spring force of the tension spring 4, the pin B52 and the disengagement rod 61 will be separated, and at the same time, the first protruding point 21 on the disengagement indicator 2 abuts against the disengagement rod 61 on the tripping mechanism 6 when the product is in a normal state, and then transitions to the second protruding point 22 abutting against the disengagement rod 61 on the tripping mechanism 6. In this process, after the second protruding point 22 abuts against the disengagement rod 61, the distance between the disengagement rod 61 and the pin B52 is significantly greater than the distance between the first protruding point 21 and the disengagement rod 61 on the tripping mechanism 6 and the pin B52 after the first protruding point 21 abuts against the disengagement rod 61 on the tripping mechanism 6.

[0033] The rotation radius of the second protrusion point on the disengagement indicator of the utility model is greater than that of the first protrusion point. The abutment of the second protrusion point with the trip rod increases the safety distance between the trip rod and the pin B on the surge protector element that can carry surge energy. The increased distance can avoid the situation where an arc exists between the pin B and the trip rod, thereby improving the cutting effect.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A disengagement mechanism for a surge protector, comprising a plug core (1), a disengagement indicator (2), a plug pin (3), a tension spring (4), a surge protector element (5) and a tripping mechanism (6), characterized in that: The insert (1) is provided with a pivot point A (11), a pivot point B (12), a guide groove A (13) and a guide groove B (14); The disengagement indicator (2) is provided with a first protruding point (21), a second protruding point (22) and a guide hole (23); the disengagement indicator (2) can be rotated around a pivot point A (11) on the plug core (1), and one end of the disengagement indicator (2) abuts against a tension spring (4) to maintain a rotational reset tendency; The surge protector element (5) is provided with a pin A (51) and a pin B (52), which are respectively inserted into the guide groove A (14) and the guide groove B (13) through the plug pin (3); The disengagement indicator (2) is respectively abutted against the surge protector element (5) and the tripping mechanism (6) for driving.

2. A disengagement mechanism for a surge protector according to claim 1, characterized in that: The pivot point A (11) and the pivot point B (12) are set to have the same model parameters.

3. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The guide groove A (13) and the guide groove B (14) are set to have the same model parameters.

4. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The first protruding point (21) and the second protruding point (22) provided on the detachment indicator (2) are located on the right side of the detachment indicator (2) and are in the same rotation direction as the pivot point A (11), and their protruding surfaces are arranged at nearly 90 degrees.

5. A disengagement mechanism for a surge protector according to claim 4, characterized in that: The first protruding point (21) has a rotation radius greater than that of the second protruding point (22).

6. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The release rod (61) on the release mechanism (6) is connected to the pin B (52) on the surge protector element (5) capable of carrying surge energy by welding material to form a thermal release point (7) having the function of melting under temperature to produce a thermal release effect.

7. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The disengagement guide (61) provided on the release mechanism (6) is inserted into a pivot point B (12) provided on the plug core (1), and the rotation direction of the disengagement guide (61) is synchronously rotated with the disengagement indicator (2) and the direction is consistent.

8. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The first protruding point (21) and the second protruding point (22) are set to have the same model parameters.

9. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The pin A (51) and the pin B (52) are set to the same model parameters.

10. The disengagement mechanism for a surge protector according to claim 1, characterized in that: The release mechanism (6) is also provided with a buckle ring (62), and the buckle ring (62) is connected to the release guide (61).

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