CN214626640U

CN214626640U - High-protection three-phase asynchronous motor

Info

Publication number: CN214626640U
Application number: CN202120302565.0U
Authority: CN
Inventors: 宋世敏; 符曰新; 陈利军
Original assignee: Qiaoli Electric Machinery Co ltd
Current assignee: Qiaoli Electric Machinery Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-05
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a high protection three-phase asynchronous motor relates to the technical field of motor, which comprises a housin, the casing on be equipped with the terminal box, be equipped with the lid on the terminal box, the terminal box on be equipped with the constant head tank, the constant head tank be the T shape, the constant head tank in be equipped with rubber seal, rubber seal including the location pad that is the T shape and the protection pad that is connected with the location pad, the location pad be located the constant head tank, the protection pad contact with the upper surface of terminal box, the lid on be equipped with the hem, the protection pad be located the cavity that the hem formed. The utility model discloses a seal box has the characteristics of high protectiveness.

Description

High-protection three-phase asynchronous motor

Technical Field

The utility model belongs to the technical field of the technique of motor and specifically relates to a high protection three-phase asynchronous machine is related to.

Background

The motor has very extensive application in all fields, and the motor needs to install the terminal box on motor housing in the use, inside the wiring of motor through the terminal box protection.

Referring to fig. 1, the upper surface of a conventional junction box 11 and the lower surface of a box cover 12 are both flat surfaces, and a rubber gasket 13 is disposed between the upper surface of the junction box 11 and the lower surface of the box cover 12, so as to achieve a sealing effect.

The above prior art solutions have the following drawbacks: its at that time in actual installation, lacks the location to the rubber pad, leads to the easy incline of rubber pad, easily causes the terminal box not sealed for the protecting effect is relatively poor, and rubber pad outside limit is naked simultaneously, and is ageing relatively easily when operational environment is relatively poor, influences the protectiveness of terminal box.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a high protection three-phase asynchronous machine, its seal box has high protectiveness.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a high protection three-phase asynchronous motor, includes the casing, the casing on be equipped with the terminal box, be equipped with the lid on the terminal box, the terminal box on be equipped with the constant head tank, the constant head tank be the T shape, the constant head tank in be equipped with rubber seal, rubber seal including the location pad that is the T shape and the protection pad that is connected with the location pad, the location pad be located the constant head tank, the upper surface of protection pad and terminal box contact, the lid on be equipped with the hem, the protection pad be located the cavity that the hem formed.

Through adopting above-mentioned technical scheme, consequently when the installation, the location pad is located the constant head tank, and the protection pad is located the upper surface of terminal box, consequently can effectively avoid the problem of protection pad dislocation to take place, and the protection pad is located the cavity that the hem formed simultaneously, consequently can effectually protect the side of protection pad, and then avoids the problem that the protection pad side is ageing to take place, consequently makes the protectiveness to the terminal box better.

The present invention may be further configured in a preferred embodiment as: the terminal box is provided with a mounting groove, the inner wall of the mounting groove is provided with a rubber layer, and the folded edge is positioned in the mounting groove.

Through adopting above-mentioned technical scheme, consequently after the installation is accomplished, the hem is located the mounting groove, and extrudees the rubber layer, consequently makes further the protective effect to the terminal box of having strengthened, and the existence of mounting groove also makes when being connected the lid with the terminal box simultaneously, and the lid is difficult for the dislocation, and it is more convenient to install.

The present invention may be further configured in a preferred embodiment as: the top of the lateral wall of terminal box be equipped with the mounting panel, mounting panel and terminal box between be equipped with the stiffening rib, constant head tank and mounting groove all be located the mounting panel.

Through adopting above-mentioned technical scheme, consequently the existence of mounting panel can effectively reduce the lateral wall thickness of terminal box, reduces manufacturing cost, and the joint strength between mounting panel and the terminal box has also been strengthened to the existence of stiffening rib simultaneously.

The present invention may be further configured in a preferred embodiment as: the junction box is also provided with a wire inlet hole, a connecting pipe is arranged in the wire inlet hole, the pipe diameter of the connecting pipe is gradually reduced along the direction outside the junction box and towards the inside of the junction box, and the inner wall of the connecting pipe is covered with a variable layer.

Through adopting above-mentioned technical scheme, consequently when using, pass the connecting pipe with outside electric wire to extrusion deformation layer makes deformation layer take place to deform, and then plays good sealed effect, has strengthened the protective effect of terminal box.

The present invention may be further configured in a preferred embodiment as: the connecting pipe is in threaded connection with the wire inlet hole, the connecting pipe comprises a connecting section and a glue injection section, and the deformation layer is located in the connecting section.

Through adopting above-mentioned technical scheme, consequently when outside electric wire passed the connecting pipe, through annotating the glue in to the injecting glue section, glue can flow to the linkage segment in for the joint strength of deformation layer and outside electric wire increases, also makes the protective effect better simultaneously.

The present invention may be further configured in a preferred embodiment as: the connecting pipe is provided with a connecting block, and the connecting block is hexagonal prism-shaped and is in contact with the outer side wall of the junction box.

Through adopting above-mentioned technical scheme, the connecting block that sets up at the terminal box outer wall makes more convenient when dismantling the connecting pipe.

The present invention may be further configured in a preferred embodiment as: and a gasket is arranged on the contact surface of the connecting block and the outer side wall of the junction box, and the gasket is fixedly connected with the connecting block.

Through adopting above-mentioned technical scheme, consequently make when the connecting block contacts with the terminal box, thereby the packing ring can receive the extrusion and take place deformation, plays good sealed effect.

The present invention may be further configured in a preferred embodiment as: the junction box is internally provided with a reinforcing block, the reinforcing block is connected with the inner wall of the junction box, and the wire inlet hole penetrates through the reinforcing block.

Through adopting above-mentioned technical scheme, consequently make the joint strength who has strengthened connecting pipe and connection box greatly.

To sum up, the utility model discloses a following at least one useful technological effect:

when the wiring box is installed, the positioning pad is positioned in the positioning groove, and the protection pad is positioned on the upper surface of the wiring box, so that the problem of dislocation of the protection pad can be effectively avoided;

when the terminal box is used, an external electric wire penetrates through the connecting pipe and extrudes the deformation layer, so that the deformation layer deforms, a good sealing effect is achieved, and the protection effect of the terminal box is enhanced.

Drawings

Fig. 1 is a schematic cross-sectional structure of the prior art.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic cross-sectional view of the junction box and the box cover of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Reference numerals: 1. a housing; 11. a junction box; 111. a reinforcing block; 112. a wire inlet hole; 12. a box cover; 121. folding edges; 13. a rubber pad; 2. a rubber seal; 21. a positioning pad; 22. a protective pad; 3. mounting a plate; 31. reinforcing ribs; 32. mounting grooves; 33. a rubber layer; 34. positioning a groove; 4. a connecting pipe; 41. a glue injection section; 42. a connecting section; 43. a deformation layer; 44. a gasket; 45. and (4) connecting the blocks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 2 and fig. 3, for the utility model discloses a high protection three-phase asynchronous motor, which comprises a housin 1, be equipped with terminal box 11 on the casing 1, be equipped with lid 12 on the terminal box 11, the top fixedly connected with mounting panel 3 of terminal box 11's lateral wall, refer to fig. 4, fixedly connected with stiffening rib 31 between mounting panel 3 and terminal box 11's the lateral wall, mounting panel 3 is equipped with constant head tank 34, constant head tank 34 is the T shape, be equipped with rubber seal 2 in the constant head tank 34, rubber seal 2 including be the location pad 21 of T shape and with location pad 21 fixed connection's protection pad 22, location pad 21 is located constant head tank 34, the lower surface of protection pad 22 contacts with the upper surface of mounting panel 3, the outer fringe fixedly connected with hem 121 of lid 12, protection pad 22 is located the cavity that hem 121 formed.

Consequently when installing box cover 12 on terminal box 11, because location pad 21 is located constant head tank 34, protection pad 22 is connected with location pad 21, consequently can effectively avoid protection pad 22 to take place when the problem of installation dislocation, simultaneously when the back is accomplished in the installation of box cover 12, protection pad 22's upper surface and box cover 12 contact, hem 121 is located the outside of mounting panel 3, consequently can play good protection effect to protection pad 22, avoid the problem emergence of protection pad 22 side ageing, consequently make the protectiveness to terminal box 11 better.

Referring to fig. 4, in order to further enhance the protection of the junction box 11, the mounting plate 3 is provided with a mounting groove 32, a rubber layer 33 is provided on the bottom wall of the mounting groove 32, and the folded edge 121 is located in the mounting groove 32. Therefore, when the box cover 12 is connected with the terminal box 11, the folded edge 121 presses the rubber layer 33 to deform the rubber layer 33, thereby enhancing the protection of the terminal box 11.

Referring to fig. 3, in order to enhance the sealing performance between the external electric wire and the terminal box 11, the terminal box 11 is further provided with a wire inlet hole 112, a connecting pipe 4 is arranged in the wire inlet hole 112, the pipe diameter of the connecting pipe 4 gradually decreases along the direction from the outside of the terminal box 11 to the inside of the terminal box 11, and the inner wall of the connecting pipe 4 is covered with a deformation layer 43. The deformation layer 43 is made of rubber. Therefore, when the external electric wire is inserted into the terminal box 11 through the connection tube 4, the deformation layer 43 is pressed, so that the deformation layer 43 is deformed, thereby achieving a good sealing effect. Because the pipe diameter of connecting pipe 4 reduces gradually and covers on the inner wall of connecting pipe 4 and has the deformation layer 43 along the direction in terminal box 11 outside towards terminal box 11, consequently can be applicable to the electric wire of different sizes for the suitability is better.

Referring to fig. 3, in order to enhance the connection effect between the electric wire and the connection pipe 4, the connection pipe 4 is screwed into the wire inlet 112, the connection pipe 4 comprises a connection section 42 and a glue injection section 41, and the deformation layer 43 is located in the connection section 42. Consequently, after the electric wire passed connecting pipe 4, through injecting glue in to injecting glue section 41, glue can get into in the linkage segment 42 for electric wire and deformation layer 43 bond mutually, and then make electric wire and connecting pipe 4's connected effect better, also can strengthen sealed effect simultaneously.

Referring to fig. 3, in order to further enhance the connection effect between the connection tube 4 and the terminal box 11 and facilitate the detachment thereof, a connection block 45 is disposed on the connection tube 4, and the connection block 45 is hexagonal prism-shaped and contacts with the outer sidewall of the terminal box 11. The face of the connecting block 45, which is in contact with the outer side wall of the junction box 11, is also provided with a gasket 44, the gasket 44 is made of rubber, and the gasket 44 is fixedly connected with the connecting block 45. A reinforcing block 111 is arranged in the junction box 11, the reinforcing block 111 is fixedly connected with the inner wall of the junction box 11, and the wire inlet hole 112 penetrates through the reinforcing block 111. Therefore, when in use, the connecting pipe 4 can be disassembled and assembled through the socket wrench, so that the operation is more convenient. The presence of the washer 44 also makes the connection between the connection tube 4 and the terminal block 11 tighter. Since the wire inlet 112 penetrates through the reinforcing block 111, the connecting pipe 4 extends into the reinforcing block 111, thereby improving the connection effect of the connecting pipe 4.

The implementation principle of the embodiment is as follows: in use, an external electric wire is connected to the circuit in the motor junction box 11 through the connection pipe 4, the box cover 12 is connected to the mounting plate 3 through a bolt, the upper surface of the protection pad 22 is connected to the lower surface of the box cover 12, the lower surface of the protection pad 22 is connected to the upper surface of the mounting plate 3, and the folded edge 121 is positioned in the mounting groove 32 and deforms the rubber layer 33 adhered to the bottom wall of the mounting groove 32. Therefore, the problem of the side edge of the protection pad 22 aging can be effectively avoided, and the protection performance is higher.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high protection three-phase asynchronous motor, includes casing (1), casing (1) on be equipped with terminal box (11), be equipped with lid (12) on terminal box (11), its characterized in that: junction box (11) on be equipped with constant head tank (34), constant head tank (34) be the T shape, constant head tank (34) in be equipped with rubber seal (2), rubber seal (2) including being location pad (21) of T shape and protection pad (22) that are connected with location pad (21), location pad (21) be located constant head tank (34), the upper surface of protection pad (22) and junction box (11) contact, lid (12) on be equipped with hem (121), protection pad (22) be located the cavity that hem (121) formed.

2. The high protection three-phase asynchronous machine according to claim 1, characterized in that: the terminal box (11) is provided with a mounting groove (32), the inner wall of the mounting groove (32) is provided with a rubber layer (33), and the folded edge (121) is positioned in the mounting groove (32).

3. The high protection three-phase asynchronous machine according to claim 2, characterized in that: the top of the side wall of the junction box (11) is provided with a mounting plate (3), a reinforcing rib (31) is arranged between the mounting plate (3) and the junction box (11), and the positioning groove (34) and the mounting groove (32) are both positioned on the mounting plate (3).

4. The high protection three-phase asynchronous machine according to claim 1, characterized in that: junction box (11) on still be equipped with entrance hole (112), entrance hole (112) in be equipped with connecting pipe (4), the pipe diameter of connecting pipe (4) reduce gradually along the direction in junction box (11) of outer orientation of junction box (11), the inner wall of connecting pipe (4) on cover and have deformation layer (43).

5. The high protection three-phase asynchronous machine according to claim 4, characterized in that: the connecting pipe (4) is in threaded connection with the wire inlet hole (112), the connecting pipe (4) comprises a connecting section (42) and a glue injection section (41), and the deformation layer (43) is located in the connecting section (42).

6. The high protection three-phase asynchronous machine according to claim 5, characterized in that: the connecting pipe (4) is provided with a connecting block (45), and the connecting block (45) is hexagonal prism-shaped and is in contact with the outer side wall of the junction box (11).

7. The high protection three-phase asynchronous machine according to claim 6, characterized in that: and a gasket (44) is further arranged on the contact surface of the connecting block (45) and the outer side wall of the junction box (11), and the gasket (44) is fixedly connected with the connecting block (45).

8. The high protection three-phase asynchronous machine according to claim 4, characterized in that: the junction box (11) is internally provided with a reinforcing block (111), the reinforcing block (111) is connected with the inner wall of the junction box (11), and the wire inlet hole (112) penetrates through the reinforcing block (111).