CN218351215U - High-protection absorption resistor - Google Patents

Abstract

The utility model discloses a high protection absorption resistor, the on-line screen storage device comprises a base, set up the protection outer container on the base, the inside aluminum hull resistor that sets up of protection outer container, connect through series connection or parallelly connected mode between the aluminum hull resistor, select one of them aluminum hull resistor to connect positive binding post, select another aluminum hull resistor to connect negative binding post, just, negative binding post fixes respectively on two insulators, the insulator sets up in the junction box, set up two cable fixing heads on the junction box, the power cord passes the cable fixing head and fixes respectively on the insulator through the crimping terminal, set up the wiring case lid on the junction box, all set up the status of connecing on junction box and the wiring case lid. The high-protection absorption resistor meets the requirement of absorbing different pulse impact energy by adjusting the number of the aluminum shell resistors and the number of the internal resistance cards, and also has the advantages of low processing and assembling difficulty, low cost, small volume, no maintenance, easy replacement, long service life, safety and reliability.

Description

High-protection absorption resistor

Technical Field

The utility model belongs to the technical field of electronic components, concretely relates to high protection absorption resistor.

Background

The snubber resistor is a high voltage resistor and is an essential component of the power supply circuit, and the reliability of the snubber resistor directly determines the safety of the power supply circuit and the power supply equipment. At present, most of commonly adopted absorption resistors are of open structures, are large in size, and are limited in application occasions due to low protection level and large occupied space; if the absorption resistor is used for a long time or placed in a place with high pollution level, the insulation withstand voltage value is easy to reduce, so that the danger such as electric shock of personnel is caused, safety accidents are caused, and the defects exist in the existing absorption resistors of various types. How to provide a high protection absorption resistor which has small volume, safety, reliability, low cost, easy replacement and no maintenance is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the utility model provides a high protection absorption resistor. This high protection absorption resistor includes the base, set up the protection outer container on the base, the inside at least two sets of aluminium shell resistor that sets up of protection outer container, connect through series connection or parallelly connected mode between the aluminium shell resistor, select one of them aluminium shell resistor to connect positive binding post, select another aluminium shell resistor to connect negative binding post, just, negative binding post fixes respectively on two insulators, the insulator sets up in the junction box, set up two cable fixing head on the junction box, the power cord passes the cable fixing head and fixes respectively on the insulator through the crimping terminal, set up the wiring case lid on the junction box, all set up the status of connecing on junction box and the wiring case lid.

As the utility model discloses further improve, aluminum hull resistor is including series connection welded multiunit resistance card, and the resistance card is wrapped up by the mica tape to by encapsulating in aluminum hull, fill the sealing compound in the gap between resistance card, mica tape and the aluminum hull, the one end of resistance card sets up the wire, sets up porcelain end cap at aluminum hull's both ends and encapsulates, and the wire passes porcelain end cap, and the outside at aluminum hull both ends still sets up the recess. The aluminum case resistor is fixed on the base through the combination of the groove and the bolt.

Compared with the prior art, the utility model provides a pair of high protection absorption resistor has following advantage:

1. the requirement of resistance value of the resistor can be met, and meanwhile, the occupied space is further saved through the serial arrangement of a plurality of groups of resistor discs, so that the high-protection absorption resistor has the advantages of small volume and low cost;

2. through the arrangement of the wiring box cover and the protective outer box, the high-protection absorption resistor has the advantages of being free from environmental pollution, improving the protection grade and being free from maintenance;

3. through the arrangement of the groove and the bolt, the high-protection absorption resistor has the advantage of easy replacement;

4. the high-protection absorption resistor has the advantages of safety and reliability by arranging the connection positions on the junction box and the junction box cover.

Drawings

Fig. 1 is a schematic top view of a high-protection absorption resistor according to an embodiment of the present invention;

fig. 2 is a schematic top view of the high protection absorption resistor of the present invention with the wiring box cover and the protection outer box removed according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of an aluminum-shell resistor in a high-protection absorption resistor according to an embodiment of the present invention; .

In the figure:

1: resistance cards; 2: an aluminum housing; 3: mica tapes; 4: sealing materials; 5: a porcelain plug; 6: an aluminum case resistor; 7: a junction box; 8: an insulator; 9: protecting the outer box; 10: a wiring box cover; 11: a base; 12: connecting a ground position; 13: a cable fixing head; 14: a groove; 15: and (4) conducting wires.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "through" and "inner" are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1, the present invention provides a high protection absorption resistor, which includes a base 11, and a support is provided through the base 11. The base 11 is provided with a protective outer case 9, and as shown in fig. 2, five groups of aluminum shell resistors 6 are arranged in the protective outer case 9. As shown in fig. 3, the aluminum case resistor 6 includes a plurality of sets of resistance cards 1 welded in series, the resistance cards 1 are wrapped by mica tapes 3 and encapsulated in the aluminum case 2, sealing materials 4 are filled in gaps among the resistance cards 1, the mica tapes 3 and the aluminum case 2, a wire 15 is arranged at one end of each series resistance card 1, ceramic plugs 5 are arranged at two ends of the aluminum case 2 for encapsulation, and the wire 15 penetrates through the ceramic plugs 5. The resistor sheets 1 are connected in series, so that the requirement on the resistance value of the resistor can be met, the occupied space is further saved, the size of the high-protection absorption resistor is reduced, and the cost is reduced. The outermost sides of the two ends of the aluminum housing 2 are also provided with grooves 14, and the aluminum housing resistor 6 is fixed on the base 11 through the combination of the grooves 14 and conventional bolts. The high-protection absorption resistor is relatively easy to replace by the arrangement of the groove 14 and the bolt. The aluminum shell resistors 6 are connected in series or in parallel, one of the aluminum shell resistors 6 is selected to be connected with a positive terminal through a wire 15, the other aluminum shell resistor 6 is selected to be connected with a negative terminal through a wire 15, and the positive terminal and the negative terminal are respectively fixed on the two insulators 8. As shown in fig. 2, the insulator 8 is disposed in the junction box 7, two cable fixing heads 13 are disposed on the junction box 7, the power line passes through the cable fixing heads 13 and is respectively fixed on the insulator 8 through the crimping terminals, a junction box cover 10 is disposed on the junction box 7, and a ground 12 is disposed on both the junction box 7 and the junction box cover 10. Through the arrangement of the wiring box cover 10 and the protective outer box 9, the high-protection absorption resistor can be prevented from environmental pollution and maintenance, and the protection grade can be improved. The safety of the power supply circuit and the high protection absorption resistor can be ensured by arranging the ground 12 on the junction box 7 and the junction box cover 10.

Working principle of the high-protection absorption resistor:

in order to keep the voltage at the two ends of the capacitor in the circuit not to change suddenly, the utility model provides a pair of high protection absorption resistor carries out the absorption of energy for absorb high voltage in the twinkling of an eye. The high-protection absorption resistor can effectively inhibit voltage oscillation and impact current generated in the moment of high-voltage operation, absorbs impact energy, quickly attenuates high-frequency vibration impact current, reduces impact influence on load equipment, and is very effective in false action of high-voltage protection caused by impact. The high-protection absorption resistor can reduce the operation overvoltage generated by a high-voltage loop, can also prevent electrical equipment from being damaged due to insulation caused by the operation overvoltage, and ensures the safe operation of the electrical equipment. When the high-protection absorption resistor is withdrawn or checked after use, the high-protection absorption resistor must be fully discharged and cooled until the discharge is finished, otherwise, the personal safety is endangered.

And (4) conclusion:

the utility model provides a pair of high protection absorption resistor satisfies different pulse impact energy's requirement through adjusting inside aluminum hull resistor quantity and inside resistance card quantity, and the processing is low with the assembly degree of difficulty, and this high protection absorption resistor is with low costs, small, non-maintaining, easy change, long service life, and this high protection absorption resistor is equipped with the status of connecing simultaneously, has guaranteed supply circuit and power supply unit's safety, safe and reliable.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The utility model provides a high protection absorption resistor, includes the base, its characterized in that, set up the protection outer container on the base, the inside at least two sets of aluminium shell resistor that sets up of protection outer container, connect through series connection or parallelly connected mode between the aluminium shell resistor, select one of them positive binding post is connected to the aluminium shell resistor, selects another negative binding post is connected to the aluminium shell resistor, positive, negative binding post fixes respectively on two insulators, the insulator sets up in the junction box, set up two cable fixing heads on the junction box, the power cord passes the cable fixing head is fixed respectively through the crimping terminal on the insulator, set up the junction box lid on the junction box, all set up the status of connecing on junction box and the junction box lid.

2. The high-protection absorption resistor according to claim 1, wherein the aluminum shell resistor comprises a plurality of groups of resistance sheets welded in series, the resistance sheets are wrapped by mica tapes and are packaged in an aluminum shell, sealing materials are filled in gaps among the resistance sheets, the mica tapes and the aluminum shell, one end of each resistance sheet is provided with a wire, ceramic plugs are arranged at two ends of the aluminum shell for packaging, the wire penetrates through the ceramic plugs, and the outermost side of the two ends of the aluminum shell is further provided with a groove.

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