Surge protector welding fixture

Abstract

The utility model discloses a welding jig for a surge protector, and relates to the field of electronic components. The utility model solves the problems of great difficulty, low efficiency and easy impact on lightning protection effect when welding the surge protector configured at the boundary of the existing LPZ0 and LPZ1. The utility model comprises: a base, which is used to respectively set a locking assembly and a surge protector through a support block fixing station and a surge protector limiting station; a locking assembly, which is connected to a guide block close to one end of the surge protector, and a plurality of sliding holes are set on the guide block, and a sliding sleeve is embedded in the sliding hole, and a clamping rod and a compression spring are coaxially arranged in the sliding sleeve; the sliding hole is projected in the vertical direction on the center line of the separation end and the welding end of the surge protector, and the clamping rod is close to one end of the surge protector so that the separation end and the welding end are in contact with each other.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, and more specifically to a welding jig for a surge protector. Background Art

[0002] Lightning is an important cause of damage to electronic equipment. It threatens the safe and stable operation of electronic information systems in various fields such as construction, railways, civil aviation, communications, industrial control, and military. Installing surge protectors on metal lines such as power lines, signal lines, and control lines connected to electronic equipment is one of the important measures for lightning protection. At present, surge protectors used to suppress surges on lines and discharge overcurrents on lines have been widely used in various fields. As for surge protectors configured at the boundary of LPZ0 and LPZ1, most companies use pure manual or semi-manual methods to weld thermal separation and current separation devices. Welding is difficult, time-consuming, labor-intensive, and inefficient. It is easy to deviate or the pad is not cooled properly, causing tearing, loosening, etc., causing the surge protector to trip and turn red prematurely, directly affecting its lightning protection effect, thereby posing a hidden danger to the safety of the protected equipment. Utility Model Content

[0003] The embodiment of the utility model provides a surge protector welding fixture to solve the problems of difficulty, low efficiency and easy impact on lightning protection effect when welding the existing surge protector as a boundary configuration between LPZ0 and LPZ1.

[0004] The present invention provides a surge protector welding jig, comprising:

[0005] A base, which is used to respectively set a locking assembly and a surge protector through a support block fixing position and a surge protector limiting position;

[0006] A locking assembly, which is connected to a guide block at one end close to the surge protector, wherein a plurality of sliding holes are arranged on the guide block, wherein a sliding sleeve is embedded in the sliding hole, and a pressing rod and a compression spring are coaxially arranged in the sliding sleeve;

[0007] The slide hole is projected in the vertical direction on the center line of the separation end and the welding end of the surge protector, and the clamping rod is close to one end of the surge protector so that the separation end and the welding end are in contact with each other.

[0008] Preferably, a nut is provided at one end of the clamping rod away from the surge protector;

[0009] The compression spring is fixed to the compression rod through a bottom boss at one end of the compression rod close to the surge protector, and the outer diameter of the bottom boss is greater than the outer diameter of the compression spring.

[0010] Preferably, it further comprises a lower boss, which is arranged at the bottom of the sliding sleeve, and the outer diameter of the lower boss is larger than the diameter of the sliding hole.

[0011] Preferably, it further comprises a handle, wherein the handle is arranged on a side of the locking assembly away from the guide block.

[0012] Preferably, the support block fixing station is fixed to the base by bolts;

[0013] The surge protector limit position is fixed to the base by bolts.

[0014] Preferably, three sliding holes are arranged on the guide block.

[0015] Preferably, the support block includes four fixing stations; and the surge protector includes four limiting stations.

[0016] The utility model provides a surge protector welding jig, comprising: a base, which is used to respectively set a locking assembly and a surge protector through a support block fixing station and a surge protector limiting station; a locking assembly, which is connected to a guide block near one end of the surge protector, and a plurality of sliding holes are set on the guide block, a sliding sleeve is embedded in the sliding hole, and a clamping rod and a compression spring are coaxially arranged in the sliding sleeve; the sliding hole is projected in the vertical direction on the center line of the separation end and the welding end of the surge protector, and the clamping rod is close to one end of the surge protector so that the separation end and the welding end are in contact with each other. This embodiment provides that the locking assembly and the surge protector are respectively arranged on the support block fixing position and the surge protector limiting position. Through the adjustment design of the clamping rod, sliding sleeve, compression spring and sliding hole position included in the locking assembly, the separation end and the welding end can be attached to each other; further, multiple support block fixing positions and surge protector limiting positions are arranged on the base, which can ensure that the welding pad on the surge protector is completely cooled and solidified, that is, reliable welding, and prevent the welding pad from being torn or loosened due to insufficient cooling, causing the surge protector to accidentally trip and jump red, affecting its lightning protection effect, and posing a hidden danger to the safety of the protected equipment, thereby solving the problems of difficulty and low efficiency in welding the surge protector configured at the boundary of the existing LPZ0 and LPZ1 and easy impact on the lightning protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1A schematic diagram of a welding jig structure of a surge protector provided in an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the locking assembly structure provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of the structure in which the separation end and the welding end are in contact with each other when the locking assembly provided by the embodiment of the utility model is working;

[0021] Figure 4 A schematic diagram of the structure of the separation end and the welding end provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the structure of a compression rod, a compression spring and a sliding sleeve provided in an embodiment of the utility model;

[0023] Among them, there are locking assembly 1, support block fixing station 2, base 3, guide block 4, top nut 51, clamping rod 61, sliding sleeve 71, compression spring 81, surge protector limit station 9, welding pad 10, separation end 11, welding end 12, surge chip 13, lower boss 14, and bottom boss 15. DETAILED DESCRIPTION

[0024] 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.

[0025] Figure 1 A schematic diagram of a welding jig structure of a surge protector provided in an embodiment of the utility model; Figure 2 A schematic diagram of the locking assembly structure provided by an embodiment of the utility model; Figure 3 A schematic diagram of the structure in which the separation end and the welding end are in contact with each other when the locking assembly provided by the embodiment of the utility model is working; Figure 4 A schematic diagram of the structure of the separation end and the welding end provided in an embodiment of the utility model; Figure 5 The schematic diagram of the structure of the compression rod, compression spring and sliding sleeve provided by the embodiment of the utility model; Figure 1 to Figure 5 Taking the example, the welding jig of the surge protector provided by the embodiment of the utility model is introduced in detail.

[0026] The surge protector welding jig provided in the embodiment of the utility model mainly comprises: a base 3, a support block fixing station 2, a surge protector limiting station 9, a locking assembly 1 and a surge protector.

[0027] Specifically, the base 3 is respectively provided with a locking assembly 1 and a surge protector through the support block fixing station 2 and the surge protector limiting station 9. In actual applications, the support block fixing station 2 and the base 3 are fixed by screwing bolts into corresponding holes, and the upper part of the support block fixing station 2 is provided with fixing holes at four corners, and the locking assembly 1 is fixedly set through the fixing holes; correspondingly, the surge protector limiting station 9 and the base 3 are fixed by screwing bolts into corresponding holes, and the upper part of the surge protector limiting station 9 is provided with fixing holes at four corners, and the surge protector is fixedly set through the fixing holes.

[0028] In an embodiment of the utility model, the number of surge protector limiting stations and support block fixing stations can include multiple, the number of surge protector limiting stations and support block fixing stations can be adjusted according to the welding efficiency, and welding starts from the first station to the Nth station. As time increases, the pad on the surge protector at the first station is completely cooled and solidified, that is, reliable welding is achieved, and the pad is prevented from being torn or loosened due to insufficient cooling, which may cause the surge protector to trip accidentally and turn red, thereby affecting its lightning protection effect and posing a hidden danger to the safety of the protected equipment.

[0029] Preferably, the surge protector limiting station and the support block fixing station 2 include four respectively.

[0030] Furthermore, the locking assembly 1 is connected to the guide block 4 at one end close to the surge protector. The guide block 4 is provided with a plurality of sliding holes. The sliding holes are embedded with a sliding sleeve 71 . The clamping rod 61 and the compression spring 81 are coaxially arranged in the sliding sleeve 71 . In actual application, the front end of the locking assembly 1 is connected to the guide block 4, and a plurality of sliding holes are distributed at intervals along the front edge line of the guide block 4, each sliding hole is embedded with a sliding sleeve 71, and the clamping rod 61 and the compression spring 81 are coaxially installed in the sliding sleeve 71. A top nut 51 is provided at the end of the clamping rod 61 away from the surge protector, and the top end of the clamping rod 61 can be locked by the top nut 51; a bottom boss 15 is provided at the end of the clamping rod 61 close to the surge protector, and the bottom boss 15 fixes the compression spring 81 on the clamping rod 61, and the outer diameter of the bottom boss 15 is larger than the outer diameter of the compression spring 81; a lower boss 14 is also provided at the bottom of the sliding sleeve 71, and the outer diameter of the lower boss 14 is larger than the diameter of the sliding hole, and is also larger than the outer diameter of the compression spring 81. By providing the lower boss 14 at the bottom of the sliding sleeve 71, the compression spring 81 can be fixed between the lower boss 14 and the bottom boss 15. Furthermore, the center of the sliding hole is located on the center line of the separation end 11 and the welding end 12 of the surge protector. It can also be said that the projection of the sliding hole in the vertical direction is located on the center line of the separation end 11 and the welding end 12 of the surge protector, which prevents the separation end 11 and the welding end 12 from being subjected to uneven force when they are pressed together, causing the force point of the pad 10 to be offset, affecting the life of the pad 10, and causing the surge protector to trip accidentally.

[0031] In this embodiment, the sliding hole, the sliding sleeve 71, the clamping rod 61 and the compression spring 81 form a self-adjusting clamping assembly. The end of the clamping rod 61 close to the surge protector fixes the compression spring 81 on the clamping rod 61 through the bottom boss 15, and the outer diameter of the bottom boss 15 is larger than the outer diameter of the compression spring 81; the sliding sleeve 71 can prevent the sliding sleeve 71 from being completely embedded in the sliding hole of the guide block 4 through the lower boss 14 set at the bottom of the sliding sleeve 71, resulting in the compression spring 81 being unable to be limited and the self-adjusting clamping function being lost.

[0032] Specifically, a top nut 51 is provided at one end of the clamping rod 61, and a bottom boss 15 is provided at the other end. The outer diameter of the bottom boss 15 is larger than the outer diameter of the compression spring 81. The arrangement of the bottom boss 15 can prevent the compression spring 81 from falling off the clamping rod 61, increase the crimping area, and prevent the separation end 11 of the surge protector from being compressed and deformed, thereby affecting the elastic force during separation. On the other hand, the bottom boss 15 can be combined with the nut of the sliding sleeve 71 to form a coaxial motion range of the compression spring 81, thereby realizing a self-adjusting clamping function.

[0033] In practical applications, the base 3, the welding end 12 and the separation end 11 led out of the surge chip 13 constitute a surge protector. When the handle of the locking assembly 1 is pressed down, the clamping rod 61 moves upward coaxially through the sliding sleeve 71 under the action of the compression spring 81, and the bottom boss 15 of the clamping rod 61 realizes the pressing effect of pressing the separation end 11 and the welding end 12 of the surge protector against each other. When the height of the welding end 12 in the surge protector is inconsistent, the position of the bottom boss 15, the top nut 51 and the lower boss 14 on the sliding sleeve 71 set on the clamping rod 61 can be adjusted to control the movement of the compression spring 81 within a predetermined range. Under the combined action of the above structures, the separation end 11 and the welding end 12 can be automatically adjusted to be in contact with each other, and then the pad 10 is formed by low-temperature alloy welding to achieve a reliable connection effect.

[0034] In this embodiment, the design of the self-adjusting clamping assembly can effectively convert the arc motion of the locking assembly 1 when pressed down into linear motion, thereby improving the pressing effect on the separation end 11 of the surge protector and the welding end 12. On the other hand, when the height of the welding end 12 in the surge protector is inconsistent, the clamping assembly can be self-adjusted to make the separation end 11 and the welding end 12 close to each other, so that the overlapping area of ​​the two reaches the maximum, and the effect of reliable contact is achieved.

[0035] The jig provided in this embodiment has a delicate appearance, a compact and simple structure, can be made in multiple stations, has low cost and high welding efficiency, and the pad 10 is reliable, round and consistent after welding.

[0036] In summary, the embodiment of the utility model provides a surge protector welding jig, and the locking assembly and the surge protector are respectively arranged on the support block fixing position and the surge protector limiting position. Through the adjustment design of the clamping rod, sliding sleeve, compression spring and sliding hole position included in the locking assembly, the separation end and the welding end can be attached to each other; further, multiple support block fixing positions and surge protector limiting positions are arranged on the base, which can ensure that the pads on the surge protector are completely cooled and solidified, that is, reliable welding, and prevent the pads from being torn or loosened due to insufficient cooling, causing the surge protector to trip and turn red by mistake, affecting its lightning protection effect, and bringing hidden dangers to the safety of the protected equipment. The problem that the existing surge protector is difficult and inefficient to weld as a boundary configuration and is easy to affect the lightning protection effect is solved.

[0037] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A surge protector welding fixture, characterized in that: include: A base, which is used to respectively set a locking assembly and a surge protector through a support block fixing station and a surge protector limiting station; A locking assembly, which is connected to a guide block at one end close to the surge protector, wherein a plurality of sliding holes are arranged on the guide block, wherein a sliding sleeve is embedded in the sliding hole, and a pressing rod and a compression spring are coaxially arranged in the sliding sleeve; The slide hole is projected in the vertical direction on the center line of the separation end and the welding end of the surge protector, and the clamping rod is close to one end of the surge protector so that the separation end and the welding end are in contact with each other.

2. The surge protector welding jig according to claim 1, characterized in that: A nut is provided at one end of the clamping rod away from the surge protector; The compression spring is fixed to the compression rod through a bottom boss at one end of the compression rod close to the surge protector, and the outer diameter of the bottom boss is greater than the outer diameter of the compression spring.

3. The surge protector welding jig according to claim 1, characterized in that: It also includes a lower boss, which is arranged at the bottom of the sliding sleeve, and the outer diameter of the lower boss is larger than the diameter of the sliding hole.

4. The surge protector welding jig according to claim 1, characterized in that: It also includes a handle, which is arranged on a side of the locking assembly away from the guide block.

5. The surge protector welding jig according to claim 1, characterized in that: The support block fixing station is fixed to the base by bolts; The surge protector limit position is fixed to the base by bolts.

6. The surge protector welding jig according to claim 1, characterized in that: Three sliding holes are arranged on the guide block.

7. The surge protector welding jig according to claim 1, characterized in that: The support block fixing stations include four; The surge protector includes four limit positions.

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