CN211481136U - Intrinsic safety power supply shell - Google Patents

Abstract

The utility model discloses an this ampere of power shell belongs to shell technical field. This ann power shell includes the shell, the power holding tank has been seted up to the front end of shell, the wire casing has been seted up to the front end of shell, and the wire casing is located the upside of power holding tank, be provided with three input end lines of group in the wire casing, first line hole has been seted up from the left hand right side in proper order to the tank bottom end of wire casing, second line hole and third line hole, three input end lines of group run through first line hole respectively, second line hole and third line hole, and three input end lines of group and first line hole, epoxy glue has all been annotated to the department of running through in second line hole and third line hole, can reach this ampere's experiment and drag the experimental requirement of dragging to the cable, and simple structure.

Description

An intrinsically safe power supply enclosure

technical field

The utility model relates to the technical field of housings, in particular to an intrinsically safe power supply housing.

Background technique

The power source is a device that converts other forms of energy into electrical energy. The power source is based on the principle of "magnetic power generation". , The common power supply is dry battery (DC), household 110V-220V AC power supply, intrinsically safe power supply.

The intrinsically safe power supply is the intrinsically safe power supply, which belongs to the explosion-proof electrical equipment for explosive gas environments. According to the intrinsic safety regulations, a large amount of epoxy resin must be poured into the AC strong current connection part so that the AC input line can be pulled by a large force. It will not cause the AC input line to fall off the power board, thus affecting safety, but pouring epoxy resin will make the switching power supply production process complicated.

Utility model content

The purpose of the utility model is to provide an intrinsically safe power supply casing, which can meet the requirements of the cable pulling test for intrinsically safe experiments, and has a simple structure and strong practicability.

In order to solve the above-mentioned problems, the utility model adopts the following technical scheme:

An intrinsically safe power supply casing includes a casing, a power supply accommodating groove is opened at the front end of the casing, a wire groove is formed at the front end of the casing, and the wire groove is located on the upper side of the power source accommodating groove, and three wire grooves are arranged in the wire groove. A first line hole, a second line hole and a third line hole are opened in the bottom end of the line slot in sequence from left to right, and the three groups of the input end lines pass through the first line hole and the third line hole respectively. The second line hole and the third line hole, and the penetrations of the three groups of the input terminal lines and the first line hole, the second line hole and the third line hole are all filled with epoxy resin glue.

Preferably, the upper and lower ends of the casing are provided with a set of card slots, the two sets of the card slots are symmetrical up and down, and a set of two card slots is provided, and the card slots are "U-shaped".

Preferably, a first partition plate and a second partition plate are fixed in sequence from left to right between the upper and lower inner walls of the wire slot, and the first partition plate and the second partition plate connect the wire slot in order from left to right. Divided into a first groove chamber, a second groove chamber and a third groove chamber, the first wire hole, the second wire hole and the third wire hole are respectively located in the first groove chamber and the second groove chamber and inside the third tank.

Preferably, a first rotating shaft is rotatably connected between the left inner wall of the wire slot and the left end of the first partition plate, and a first reel is fixed on the circumferential surface of the first rotating shaft. The end wire is wound around the circumferential surface of the first reel.

Preferably, a second rotating shaft is rotatably connected between the right end of the first baffle plate and the left end of the second baffle plate, and a second reel is fixed on the circumferential surface of the second rotating shaft. The end wire is wound around the circumferential surface of the second reel.

Preferably, a third rotating shaft is rotatably connected between the right end of the second partition plate and the right inner wall of the wire groove, and a third reel is fixed on the circumferential surface of the third rotating shaft. wound around the circumferential surface of the third reel.

Preferably, the circumferential surfaces of the first winding wheel, the second winding wheel and the third winding wheel are all provided with evenly distributed winding grooves, and the inner walls of the winding grooves are polished smoothly.

Preferably, the left and right inner walls of the power supply accommodating groove are provided with a plurality of evenly distributed heat dissipation holes, and a dust filter screen is fixed in the heat dissipation holes.

Compared with the prior art, the advantages of the present utility model are:

(1) The utility model puts the input terminal wire on the back of the power supply, that is, in the wire slot, and then opens the first wire hole, the second wire hole and the third wire hole respectively at the bottom end of the wire groove, and then injects epoxy resin into it. In this way, it can not only meet the cable pulling test requirements of the intrinsic safety test, but also simplify the production process of the power supply, so as to achieve the purpose of maintaining the power supply;

(2) The utility model enables the input end wire to be well wound by the arrangement of the first winding wheel, the second winding wheel and the second winding wheel, and it is not easy to cause confusion of the input end wire;

(3) This scheme effectively ensures the heat dissipation of the intrinsically safe power supply through the setting of the heat dissipation holes.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Description of the labels in the figure:

1 shell, 2 power supply accommodating slot, 3 heat dissipation hole, 4 card slot, 5 wire slot, 6 first partition plate, 7 second partition plate, 8 first shaft, 9 first winding wheel, 10 first wire hole, 11 The second shaft, 12 The second reel, 13 The second wire hole, 14 The third shaft, 15 The third reel, 16 The third wire hole.

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art can obtain all other The embodiments all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. is based on the drawings shown in the drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limit. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as "Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be two elements Internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example:

Please refer to FIG. 1, an intrinsically safe power supply housing, including a housing 1, a power supply accommodating slot 2 is opened at the front end of the housing 1, and a wiring slot 5 is provided at the front end of the housing 1, and the wiring slot 5 is located on the upper side of the power supply accommodating slot 2, and the wiring slot 5 is located on the upper side of the power supply housing slot 2. Three groups of input terminal lines (not shown in the figure) are arranged in the slot 5. The bottom end of the slot 5 is provided with a first wire hole 10, a second wire hole 13 and a third wire hole 16 in turn from left to right. The three groups of input terminal lines are respectively The first wire hole 10, the second wire hole 13 and the third wire hole 16 are penetrated, and the three groups of input terminal wires and the first wire hole 10, the second wire hole 13 and the third wire hole 16 are all filled with epoxy glue (Fig. not shown).

In this embodiment, the power supply accommodating slot 2 is used to place the intrinsically safe power supply. By placing the input end wire in the wire slot 5, and then opening the first wire hole 10, the second wire hole 13 and the first wire hole 10 at the bottom end of the wire groove 5, respectively. Three-wire hole 16, and then inject epoxy resin into it, which can not only meet the cable pulling test requirements of the intrinsic safety test, but also simplify the production process of the power supply, so as to achieve the purpose of maintaining the power supply.

Specifically, the upper and lower ends of the housing 1 are provided with a set of card slots 4, the two sets of card slots 4 are symmetrical up and down, and a set of two card slots 4 is provided, and the card slots 4 are "U-shaped".

In this embodiment, the setting of the card slot 4 facilitates the rapid positioning and installation of the housing 1 .

Specifically, a first partition 6 and a second partition 7 are fixed between the upper and lower inner walls of the wire slot 5 in order from left to right, and the first partition 6 and the second partition 7 connect the wire slot 5 from left to right Divided into a first slot chamber, a second slot chamber and a third slot chamber, the first wire hole 10, the second wire hole 13 and the third wire hole 16 are located in the first slot chamber, the second slot chamber and the third slot chamber, respectively. A first rotating shaft 8 is rotatably connected between the left inner wall of the groove 5 and the left end of the first partition plate 6, a first winding wheel 9 is fixed on the circumferential surface of the first rotating shaft 8, and a group of input end wires are wound around the first winding wire. On the circumferential surface of the wheel 9, a second rotating shaft 11 is rotatably connected between the right end of the first baffle 6 and the left end of the second baffle 7, and a second winding wheel 12 is fixed on the circumferential surface of the second rotating shaft 11. The end wire is wound on the circumferential surface of the second reel 12, a third rotating shaft 14 is rotatably connected between the right end of the second partition plate 7 and the right inner wall of the wire slot 5, and a third winding wire is fixed on the circumferential surface of the third rotating shaft 14 Wheel 15, a group of input end wires are wound around the circumferential surface of the third winding wheel 15.

In this embodiment, the first reel 9, the second reel 12 and the third reel 15 are all rotatable, and the three groups of input end wires are respectively wound around the first reel 9 and the second reel 12 and the third winding wheel 15, when the cable is pulled, the input end wire can be rotated along with it, and the input end wire can be wound on them at the same time, so that the input end wire can be placed in an orderly manner.

Specifically, the circumferential surfaces of the first winding wheel 9 , the second winding wheel 12 and the third winding wheel 15 are all provided with evenly distributed winding grooves, and the inner walls of the winding grooves are polished smoothly.

In this embodiment, the smooth wire winding groove is polished so that the input end wire can be wound better, and at the same time, the input end wire is not easily damaged by abrasion.

Specifically, the left and right inner walls of the power supply accommodating slot 2 are provided with a plurality of evenly distributed heat dissipation holes 3 , and a dust filter screen is fixed in the heat dissipation holes 3 .

In this embodiment, the heat dissipation holes 3 facilitate the heat dissipation of the intrinsically safe power supply, and the dustproof filter makes it difficult to be infected with dust.

Working principle: By placing the input end wire groove 5, and then opening the first wire hole 10, the second wire hole 13 and the third wire hole 16 at the bottom end of the wire groove 5, and then injecting epoxy resin glue into it, this not only can It can meet the requirements of the cable pulling test in the intrinsic safety test, and can simplify the production process of the power supply to achieve the purpose of maintaining the power supply.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or modification of the new technical solution and its improvement concept shall be included within the protection scope of the present invention.

Claims (8)

1. An intrinsically safe power supply housing, comprising a housing (1), the front end of the housing (1) is provided with a power supply accommodating slot (2), characterized in that: the front end of the housing (1) is provided with a wire slot (5) , and the wire slot (5) is located on the upper side of the power supply accommodating slot (2), the wire slot (5) is provided with three groups of input terminal lines, and the bottom end of the wire slot (5) is sequentially from left to right. A first wire hole (10), a second wire hole (13) and a third wire hole (16) are opened, and the three groups of input end wires respectively penetrate the first wire hole (10) and the second wire hole (13) and the third wire hole (16), and the three groups of the input end wires and the first wire hole (10), the second wire hole (13) and the third wire hole (16) are all injected There is epoxy glue. 2. An intrinsically safe power supply casing according to claim 1, characterized in that: the upper and lower ends of the casing (1) are provided with a set of card slots (4), and the two sets of the card slots (4) are up and down Symmetrical, and a set of two card slots (4) are provided, and the card slots (4) are "U-shaped". 3. An intrinsically safe power supply enclosure according to claim 2, characterized in that a first partition plate (6) and a second partition plate (6) and a second partition plate (6) and a second partition plate (6) are fixed in sequence from left to right between the upper and lower inner walls of the wire groove (5). Plate (7), the first partition (6) and the second partition (7) divide the wire slot (5) into a first slot chamber, a second slot chamber and a third slot sequentially from left to right chamber, the first wire hole (10), the second wire hole (13) and the third wire hole (16) are respectively located in the first groove chamber, the second groove chamber and the third groove indoor. 4. An intrinsically safe power supply enclosure according to claim 3, characterized in that a first rotating shaft is rotatably connected between the left inner wall of the wire groove (5) and the left end of the first partition plate (6). (8), a first winding wheel (9) is fixed on the circumferential surface of the first rotating shaft (8), and a group of the input end wires are wound around the circumferential surface of the first winding wheel (9). 5. An intrinsically safe power supply enclosure according to claim 4, characterized in that a second partition is rotatably connected between the right end of the first partition plate (6) and the left end of the second partition plate (7). A rotating shaft (11), a second winding wheel (12) is fixed on the circumferential surface of the second rotating shaft (11), and a group of the input end wires are wound around the circumferential surface of the second winding wheel (12). 6. An intrinsically safe power supply enclosure according to claim 5, characterized in that a third rotating shaft is rotatably connected between the right end of the second partition plate (7) and the right inner wall of the wire groove (5). (14), a third winding wheel (15) is fixed on the circumferential surface of the third rotating shaft (14), and a group of the input end wires are wound around the circumferential surface of the third winding wheel (15). 7. An intrinsically safe power supply housing according to claim 6, characterized in that: the first winding wheel (9), the second winding wheel (12) and the third winding wheel ( 15) The circumferential surface of each is provided with evenly distributed wire winding grooves, and the inner wall of the wire winding groove is polished smoothly. 8. An intrinsically safe power supply housing according to any one of claims 1-7, characterized in that: the left and right inner walls of the power supply accommodating groove (2) are provided with a plurality of evenly distributed heat dissipation holes (3), And a dust filter screen is fixed in the heat dissipation hole (3).

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