CN217087655U

CN217087655U - Structure for realizing cavity-separating explosion suppression between explosion-proof product motor and electric

Info

Publication number: CN217087655U
Application number: CN202123363181.9U
Authority: CN
Inventors: 梅涛; 梅志明
Original assignee: JIANGSU JINLING AUTOMATIC CONTROL TECHNOLOGY CO LTD
Current assignee: Jiangsu Jinling Intelligent Control Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-29
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to an apply to structure that realizes dividing chamber flame proof between flame proof product motor and electricity, the wire adopts the flame proof type to wear the wall terminal to be connected between motor and the electric chamber of control, and the casing has terminal sliding guide hole and flame proof face. The utility model discloses increase the flame proof type between the motor in the flame proof electric product and the electric chamber and wear the wall terminal, it adopts epoxy to fill fixedly to wear the wire in the wall terminal, with insulating nature and impact resistance between guaranteeing the wire, the flame proof type is worn and is set up the flame proof faying face according to the standard between wall terminal and the casing, make motor and electric chamber realize keeping apart, and the single flame proof cavity volume of effective control, effectively prevent any arbitrary electrical component of product from blasting, the impact force of production overlaps and damages the product structure. Meanwhile, the installation mode is more operational and more convenient to install in the actual assembly process.

Description

Structure for realizing cavity-separating explosion suppression between explosion-proof product motor and electric

Technical Field

The utility model relates to an electric actuator technical field, concretely relates to apply to flame proof product motor and electric structure of realizing dividing the chamber flame proof within a definite time.

Background

The valve electric actuator is a common explosion-proof valve driving device in an industrial automatic control system, is widely applied to automatic control systems in production processes of industries such as petrochemical industry, natural gas, metallurgical smelting, electric power, papermaking, steel, cement, municipal environmental protection and the like, and meets the increasingly improved automatic control requirement of industrial production. The existing valve electric actuator has the condition that a motor cavity is communicated with two explosion-proof cavities of an electric cavity body and the air flow circulation is small. When the internal circuit detonates, pressure superposition exists in the two cavities, and the pressure impact shell can exceed the bearing strength designed according to the standard, so that the product is likely to lose explosion and accidents are caused. In addition, the motor lead in the original design cannot be accommodated well when being introduced into the electric cavity, and the lead is easy to damage after possibly touching the driving shaft of the motor in the process of driving the worm shaft by the motor shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's defect, provide one kind and apply to the structure that realizes dividing the chamber flame proof between flame proof product motor and electricity.

Realize the utility model discloses the technical scheme of purpose is: the utility model provides a structure that applies to realize dividing chamber flame proof between flame proof product motor and electricity, has the casing, the casing has terminal sliding guide hole and electric chamber, terminal sliding guide hole with the interval is equipped with explosion-proof faying face between the electric chamber, explosion-proof faying face connection cooperation has the flame proof type to wear the wall terminal, the flame proof type is worn the wall terminal and is equipped with a plurality of wire slotted holes, and is a plurality of the wire slotted hole is used for the interval connecting wire.

According to the technical scheme, an epoxy resin partition plate is arranged between the explosion-proof type wall penetrating terminal and the lead slot hole.

According to the technical scheme, epoxy resin pouring layers are arranged on two sides of the epoxy resin partition plate.

The material of the epoxy resin pouring layer in the technical scheme is epoxy resin RX 901.

According to the technical scheme, the shell of the explosion-proof through-wall terminal is matched with the explosion-proof joint surface, and the right end of the explosion-proof through-wall terminal is connected with the check ring.

After the technical scheme is adopted, the utility model discloses following positive effect has:

the utility model discloses increase the flame proof type between motor and the electric chamber in the flame proof electric product and wear the wall terminal, it is fixed that the wire adopts epoxy to fill among the wall terminal, with insulating nature and impact resistance between guaranteeing the wire, the flame proof type sets up the flame proof faying face according to the standard between wall terminal and the casing, make motor and electric chamber realize keeping apart, and single flame proof cavity volume of effective control, effectively prevent any arbitrary end electric component of product from exploding, the impact force of production overlaps and damages the product structure. Meanwhile, the installation mode is more operational and more convenient to install in the actual assembly process.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

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

FIG. 2 is an enlarged schematic view of A in FIG. 1;

fig. 3 is a schematic structural diagram of the flameproof wall-through terminal.

In the figure: the explosion-proof wall-penetrating terminal comprises a shell 1, a terminal sliding guide hole 11, an electric cavity 12, an explosion-proof joint surface 3, an explosion-proof wall-penetrating terminal 4, a wire groove hole 41, a wire 100, an epoxy resin partition plate 42, an epoxy resin pouring layer 43, a retainer ring 5, a motor 200 and a motor cavity 201.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

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 in specific cases to those skilled in the art.

See fig. 1 and fig. 2, the utility model provides an apply to the structure that realizes dividing the chamber flame proof between flame proof product motor and electricity, casing 1 has terminal sliding guide hole 11 and electric chamber 12, the interval is equipped with explosion-proof faying face 3 between terminal sliding guide hole 11 and the electric chamber 12, explosion-proof faying face 3 is connected the cooperation and is had flame proof type wall terminal 4 of wearing, flame proof type wall terminal 4 of wearing is equipped with a plurality of wire slotted holes 41, a plurality of wire slotted holes 41 are for interval connection wire 100. The shell 1 is a shell of a motor of an explosion-proof product, namely, a shell of an electric actuator, the shell 1 is further connected with a motor 200, and corresponding components such as a worm gear (not marked in the figure) and the like are regarded as the prior art, and are not described in detail herein, so that the understanding of the technical personnel in the field is not affected. The flameproof wall-penetrating terminal 4 is a copper sleeve for threading the conducting wire 100, the flameproof wall-penetrating terminal is subjected to flameproof by using an encapsulation technology, and the conducting wire slot 41 is formed by encapsulating the conducting wire 100. The terminal sliding guide hole 11 is formed by separating an explosion-proof joint surface 3, the motor 200 is provided with a motor cavity 201 correspondingly, the terminal sliding guide hole 11 is bridged between the motor cavity 201 and an electric cavity 12, the explosion-proof joint surface 3 forming the terminal sliding guide hole 11 is additionally provided with an explosion-proof wall-penetrating terminal 4, and the explosion loss caused by the pressure overlapping phenomenon between the motor cavity 201 and the electric cavity 12 is prevented.

Specifically, an epoxy resin partition plate 42 is arranged between the explosion-proof type wall-through terminal 4 and the wire slot hole 41. The wire slot 41 also corresponds to the epoxy resin partition plate 42, and the epoxy resin partition plate 42 is pre-perforated before being placed inside the flameproof wall-through terminal 4. The pre-perforated epoxy spacer plates 42 are used to space the various conductors 100. The conductor slot 41 has 5 large, two small, and the conductor 100 has 5 flexible wires in total, wherein 3 flexible wires are 2.5mm ² The other two specifications are 0.5mm ² And each incoming and outgoing line is sleeved with a corresponding line number.

Epoxy resin pouring layers 43 are arranged on two sides of the epoxy resin partition plate 42, and the epoxy resin pouring layers 43 are poured.

The epoxy resin molding layer 43 is made of epoxy resin RX 901.

The epoxy resin RX901 used by the epoxy resin pouring layer 43 is a two-component black flame-retardant heat-conducting epoxy pouring sealant which is low in viscosity, good in fluidity and easy to permeate into gaps of products; can be cured at normal temperature or medium temperature, and has moderate curing speed; no bubble, smooth surface, luster and high hardness after curing; the cured product has good acid and alkali resistance, good moisture, water, oil and dust resistance, and good moisture, heat and atmospheric aging resistance; has good electrical and physical properties such as insulation, compression resistance, high bonding strength and the like.

The shell of the explosion-proof through-wall terminal 4 is clamped on the explosion-proof junction surface 3 in a matching mode, and the right end of the explosion-proof through-wall terminal 4 is connected with a check ring 5. During installation, the explosion-proof through-wall terminal 4 is clamped on the explosion-proof joint surface 3 by the end surface protruding from the left side of the explosion-proof through-wall terminal from left to right, and the right side of the explosion-proof through-wall terminal 4 is fixed by the retainer ring 5. The retainer ring 5 may be, but is not limited to, an E-type snap ring retainer ring.

The utility model discloses a theory of operation does: before installation, a lead wire 100 is led out from a motor, an insulating outer layer with the length of 10mm is stripped on the lead wire 100, a copper core stripped from the lead wire is firmly adhered into a whole by using soldering tin, a bare copper part with the length of 10mm is placed in the middle of an epoxy resin partition plate 42 and corresponds to an opening position of a lead slot 41, two ends of the epoxy resin partition plate 42 are sealed by epoxy resin RX901, the thickness of the sealed parts at the two ends is not less than 5mm, the axial sealing length is at least 20mm, and at least 20% of the cross section area of each point on the sealed end with the length of 20mm is filled. And inserting the cast explosion-proof through-wall terminal 4 into the explosion-proof junction surface 3, and locking by using the check ring 5. In the whole process, the lead 100 (i.e. the part on the left side of the flameproof through-wall terminal 4 in fig. 1 and 2) led out from the motor and positioned in the terminal sliding guide hole 11 can be shortened as much as possible without being preserved for a long time.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a structure that applies to realize dividing chamber flame proof between flame proof product motor and electricity which characterized in that: casing (1) has, casing (1) has terminal slip guiding hole (11) and electric chamber (12), terminal slip guiding hole (11) with be equipped with explosion-proof faying face (3) between electric chamber (12), explosion-proof faying face (3) cooperation is connected with explosion-proof type wall terminal (4), explosion-proof type wall terminal (4) are equipped with a plurality of wire slotted holes (41), and are a plurality of wire slotted hole (41) are used for interval connection wire (100).

2. The structure for realizing the separated-cavity flame-proof between the flame-proof product motor and the electric appliance according to claim 1, characterized in that: and an epoxy resin partition plate (42) is arranged between the explosion-proof type wall-through terminal (4) and the lead slotted hole (41).

3. The structure for realizing the separated-cavity flame-proof between the flame-proof product motor and the electric appliance according to claim 2 is characterized in that: and epoxy resin pouring layers (43) are arranged on two sides of the epoxy resin partition plate (42).

4. The structure for realizing the separated-cavity flame-proof between the flame-proof product motor and the electric appliance according to claim 3, characterized in that: the epoxy resin pouring layer (43) is made of epoxy resin RX 901.

5. The structure for realizing the separated-cavity flame-proof between the flame-proof product motor and the electric appliance according to claim 4, characterized in that: the shell of the explosion-proof through-wall terminal (4) is matched with the shell to form an explosion-proof joint surface (3), and the right end of the explosion-proof through-wall terminal (4) is connected with a check ring (5).