CN211879147U - Flame-retardant explosion-proof resistor - Google Patents

Abstract

The utility model belongs to the technical field of resistors, and particularly discloses a flame-retardant and explosion-proof resistor, which comprises a resistor body, an explosion-proof flame-retardant shell and a ceramic ring; the outer layer of the resistor body is provided with a plurality of ceramic rings which are uniformly spaced, and an insulating explosion-proof filling layer is arranged between the ceramic rings; the ceramic ring can not only enhance the stability of the resistor body, but also assist in fixing the insulating explosion-proof filling layer, thereby improving the explosion-proof performance of the resistor, and meanwhile, the heat absorption filling layer is arranged to prevent the outer layer of the resistor body from being damaged due to heating; first pin and second pin are used for connecting other electronic components, and explosion-proof fire-retardant casing prevents that the piece from bursting apart when the resistor body takes place to explode and splits, connects the joint and makes explosion-proof fire-retardant casing have stronger impact resistance and explosion-proof performance, gives an impact breaking point for explosion-proof fire-retardant casing, and explosion-proof fire-retardant casing breaks apart from connecting the joint, still keeps the wholeness through the elasticity inoxidizing coating, reduces the damage.

Description

Flame-retardant explosion-proof resistor

Technical Field

The utility model relates to a resistor technical field specifically is a fire-retardant explosion-proof formula resistor.

Background

Two-terminal electronic components made of resistive materials and having a certain structural form that can act to limit the passage of current in an electrical circuit are called resistors. The resistance value that cannot be changed is called a fixed resistor. Variable resistance is called a potentiometer or a variable resistor. Ideally the resistor is linear, i.e. the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Some special resistors, such as thermistors, piezoresistors, and sensitive elements, have a non-linear voltage versus current relationship. Resistors are the most used elements in electronic circuits, and are usually formed into different series according to power and resistance values for circuit designers to choose. With the rapid development of technologies such as electronic and electric products, the use requirement of people on the resistor is improved, if abnormal actions exceed the basic load of the resistor, the resistor is finally exploded and burnt, unpredictable damage exists on the electronic products, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant explosion-proof formula resistor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flame-retardant and explosion-proof resistor comprises a resistor body, an explosion-proof and flame-retardant shell and a ceramic ring; one end of the resistor body is connected with a first pin, and the other end of the resistor body is connected with a second pin; the outer layer of the resistor body is provided with a plurality of ceramic rings which are uniformly spaced, and an insulating explosion-proof filling layer is arranged between the ceramic rings; support rings are arranged on the outer sides of the ceramic rings, and heat absorption filling layers are arranged between the support rings; an explosion-proof flame-retardant shell is arranged on the outer side of the heat absorption filling layer, a connecting joint is arranged on the explosion-proof flame-retardant shell, and an elastic protective layer is arranged on the outer layer of the connecting joint; the explosion-proof flame-retardant shell is characterized in that two ends of the explosion-proof flame-retardant shell are provided with through holes corresponding to the first pins and the second pins, the tail ends of the first pins and the second pins extend out of the through holes, and sealing glue layers are arranged at the edges of the through holes.

Preferably, the ends of the first pin and the second pin are made of metal conductive materials.

Preferably, ceramic rings are respectively fixed on the outer sides of two tail ends of the resistor body, and the distance between every two adjacent ceramic rings is 2-3 cm.

Preferably, the support ring is a sheet-packed ring structure, the inner side end of the support ring is connected with the outer side of the ceramic ring, and the outer side end of the support ring is connected with the inner side end of the explosion-proof flame-retardant shell.

Preferably, the connecting seam is arranged at the center of the explosion-proof flame-retardant shell, and the connecting seam is provided with a discontinuous connecting section.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure, high safety performance and good explosion-proof performance; the outer layer of the resistor body is provided with a plurality of ceramic rings which are uniformly spaced, and an insulating explosion-proof filling layer is arranged between the ceramic rings; the ceramic ring can not only enhance the stability of the resistor body, but also assist in fixing the insulating explosion-proof filling layer, thereby improving the explosion-proof performance of the resistor, and meanwhile, the heat absorption filling layer is arranged to prevent the outer layer of the resistor body from being damaged due to heating; first pin and second pin are used for connecting other electronic components, and explosion-proof fire-retardant casing prevents that the piece from bursting apart when the resistor body takes place to explode and splits, connects the joint and makes explosion-proof fire-retardant casing have stronger impact resistance and explosion-proof performance, gives an impact breaking point for explosion-proof fire-retardant casing, and explosion-proof fire-retardant casing breaks apart from connecting the joint, still keeps the wholeness through the elasticity inoxidizing coating, reduces the damage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall cross-sectional structure of the present invention.

In the figure: 1. a resistor body; 2. a first pin; 3. a second pin; 4. a ceramic ring; 5. an insulating explosion-proof filling layer; 6. a support ring; 7. a heat-absorbing filling layer; 8. an explosion-proof flame-retardant housing; 9. connecting the clamping seams; 10. an elastic protective layer; 11. an outlet hole is formed; 12. and (6) sealing the adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a flame-retardant and explosion-proof resistor comprises a resistor body 1, an explosion-proof and flame-retardant shell 8 and a ceramic ring 4; one end of the resistor body 1 is connected with a first pin 2, and the other end of the resistor body 1 is connected with a second pin 3; a plurality of ceramic ring rings 4 are uniformly arranged on the outer layer of the resistor body 1 at intervals, and insulating explosion-proof filling layers 5 are arranged between the ceramic ring rings 4; the outer side of the ceramic ring 4 is provided with support rings 6, and a heat absorption filling layer 7 is arranged between the support rings 6; an explosion-proof flame-retardant shell 8 is arranged on the outer side of the heat-absorbing filling layer 7, a connecting seam 9 is arranged on the explosion-proof flame-retardant shell 8, and an elastic protective layer 10 is arranged on the outer layer of the connecting seam 9; explosion-proof fire-retardant casing 8 both ends are provided with the hole 11 of wearing out corresponding to first pin 2 and second pin 3, and first pin 2 and 3 ends of second pin stretch out and wear out hole 11, and 11 edges of wearing out hole are provided with sealing glue layer 12.

Furthermore, the tail ends of the first pin 2 and the second pin 3 are made of metal conductive materials.

Furthermore, ceramic ring rings 4 are respectively fixed on the outer sides of two tail ends of the resistor body 1, and the distance between adjacent ceramic ring rings 4 is 2-3 cm.

Furthermore, the support ring 6 is of a sheet-packed ring structure, the inner side end of the support ring 6 is connected with the outer side of the ceramic ring 4, and the outer side end of the support ring 6 is connected with the inner side end of the explosion-proof flame-retardant shell 8.

Furthermore, the connecting joint 9 is arranged at the center of the explosion-proof flame-retardant shell 8, and the connecting joint 9 is provided with an intermittent connecting section.

The working principle is as follows: one end of the resistor body 1 is connected with a first pin 2, and the other end of the resistor body 1 is connected with a second pin 3; a plurality of ceramic ring rings 4 are uniformly arranged on the outer layer of the resistor body 1 at intervals, and insulating explosion-proof filling layers 5 are arranged between the ceramic ring rings 4; the outer side of the ceramic ring 4 is provided with support rings 6, and a heat absorption filling layer 7 is arranged between the support rings 6; the ceramic ring 4 can not only enhance the stability of the resistor body 1, but also assist in fixing the insulating explosion-proof filling layer 5, so that the explosion-proof performance of the resistor is improved, and meanwhile, the heat absorption filling layer 7 is arranged to prevent the outer layer of the resistor body 1 from being damaged due to heating;

an explosion-proof flame-retardant shell 8 is arranged on the outer side of the heat-absorbing filling layer 7, a connecting seam 9 is arranged on the explosion-proof flame-retardant shell 8, and an elastic protective layer 10 is arranged on the outer layer of the connecting seam 9; the utility model discloses a resistor, including explosion-proof flame-retardant casing 8, the both ends of explosion-proof flame-retardant casing are provided with the hole 11 of wearing out corresponding to first pin 2 and second pin 3, first pin 2 and 3 ends of second pin stretch out and wear out hole 11, it is provided with sealant layer 12 to wear out hole 11 edge, first pin 2 and second pin 3 are used for connecting other electronic components, explosion-proof flame-retardant casing 8 prevents the piece when resistor body 1 takes place to explode and splits and bursts, connect joint 9 and make explosion-proof flame-retardant casing 8 have stronger shock resistance and explosion-proof ability, give 9 an impact rupture points of explosion-proof flame-retardant casing, explosion-proof flame-retardant casing 9 breaks 8 from connecting the joint and splits, still keep the wholeness through.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A flame-retardant explosion-proof resistor is characterized in that: comprises a resistor body (1), an explosion-proof flame-retardant shell (8) and a ceramic ring (4); one end of the resistor body (1) is connected with a first pin (2), and the other end of the resistor body (1) is connected with a second pin (3); a plurality of ceramic ring rings (4) which are uniformly spaced are arranged on the outer layer of the resistor body (1), and insulating explosion-proof filling layers (5) are arranged between the ceramic ring rings (4); the outer side of the ceramic ring (4) is provided with support rings (6), and a heat absorption filling layer (7) is arranged between the support rings (6); an explosion-proof flame-retardant shell (8) is arranged on the outer side of the heat-absorbing filling layer (7), a connecting seam (9) is arranged on the explosion-proof flame-retardant shell (8), and an elastic protective layer (10) is arranged on the outer layer of the connecting seam (9); explosion-proof fire-retardant casing (8) both ends are provided with and are corresponded to first pin (2) and second pin (3) wear out hole (11), and first pin (2) and second pin (3) end stretch out wear out hole (11), and wear out hole (11) edge is provided with sealant layer (12).

2. A flame retardant and explosion proof resistor according to claim 1, wherein: the tail ends of the first pin (2) and the second pin (3) are made of metal conductive materials.

3. A flame retardant and explosion proof resistor according to claim 1, wherein: the resistor is characterized in that ceramic ring rings (4) are respectively fixed on the outer sides of two tail ends of the resistor body (1), and the distance between every two adjacent ceramic ring rings (4) is 2-3 cm.

4. A flame retardant and explosion proof resistor according to claim 1, wherein: the support ring (6) is of a sheet-packed ring structure, the inner side end of the support ring (6) is connected with the outer side of the ceramic ring (4), and the outer side end of the support ring (6) is connected with the inner side end of the explosion-proof flame-retardant shell (8).

5. A flame retardant and explosion proof resistor according to claim 1, wherein: the connecting joint (9) is arranged at the center of the explosion-proof flame-retardant shell (8), and the connecting joint (9) is provided with an interrupted connecting section.

Images