Motor junction box

Abstract

The utility model relates to a motor junction box, which comprises a box body and a sealing gasket, the box body is installed on the outer side of a motor casing through screws, the bottom of the box body is provided with an opening communicated with an inner cavity of the box body, and the bottom of the rear side of the box body is provided with a wire passing groove communicated with the opening and the inner cavity of the box body; the sealing gasket is clamped between the bottom end of the box body and the outer side of the motor shell, the upper portion of the rear side of the sealing gasket is provided with a sealing sleeve for a motor wire to penetrate through, the sealing sleeve and the sealing gasket are integrally manufactured, and the sealing sleeve is clamped in the wire passing groove. The motor junction box has the beneficial effects that the opening and the wire passing groove which are communicated are arranged at the bottom of the box body, and the sealing gasket and the sealing sleeve which are integrally manufactured are arranged, so that sealing processing points of the motor junction box are combined into one position, the sealing processing points are reduced, parts of the motor junction box are reduced, and the motor junction box is convenient to assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor field especially relates to a motor junction box. BACKGROUND

[0002] The motor junction box is installed on the outside of the motor shell and is used for connecting the motor coil and the external power line, and the existing motor junction box generally comprises a box body, a box cover, a sealing ring and the like, the box body is installed on the outside of the motor shell, the box cover is connected with the box body by screws, and the sealing ring is clamped between the box body and the box cover, and a through hole for the motor coil terminal to pass through and a threading hole for the external power line to pass through are additionally formed in the box body, so that the existing motor junction box has at least three sealing points, and the sealing points are many, the parts are many, and the assembly is troublesome. SUMMARY

[0003] The utility model discloses a motor junction box which overcomes the above problems in the prior art.

[0004] To achieve the above technical purposes and effects, the utility model discloses the following technical scheme:

[0005] A motor junction box comprises:

[0006] The box body is installed on the outside of the motor shell by screws, the bottom of the box body is provided with an opening in communication with the internal cavity of the box body, and the rear bottom of the box body is provided with a wire passing groove in communication with the opening and the internal cavity of the box body.

[0007] The sealing gasket is clamped between the bottom end of the box body and the outside of the motor shell, the rear upper portion of the sealing gasket is provided with a sealing sleeve pipe for the motor wire to pass through, the sealing sleeve pipe is integrally formed with the sealing gasket, and the sealing sleeve pipe is clamped in the wire passing groove.

[0008] The bottom end of the box body is provided with a ring-shaped recessed mounting clamping groove, the top end of the sealing gasket is provided with a ring-shaped mounting clamping strip protruding upward, and the mounting clamping strip is clamped in the mounting clamping groove.

[0009] The groove wall of the wire passing groove is provided with a positioning clamping groove in communication with the mounting clamping groove, the outer side of the sealing sleeve pipe is provided with a positioning clamping strip integrally connected with the mounting clamping strip, and the positioning clamping strip is clamped in the positioning clamping groove.

[0010] The box body is a cuboid, and a first countersunk hole penetrating upward and downward is formed at each of the four corners of the box body.

[0011] The inner side of the box body is provided with four screw columns in a rectangular array, and the inner side of the box body and the screw columns are provided with a grid-shaped reinforcing rib.

[0012] The inner surface of the box body is sprayed with insulating paint to form an insulating layer.

[0013] The outer side of the sealing sleeve is provided with two circular wire grooves, one of which is located inside the sealing gasket, and the other is located outside the sealing gasket.

[0014] The beneficial effects of the utility model are that the opening and the wire slot are arranged in communication at the bottom of the box body, the sealing gasket and the sealing sleeve are integrally formed, the sealing treatment points of the motor junction box are combined into one, the sealing treatment points are reduced, the parts of the motor junction box are reduced, and thus the assembly is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the utility model, constitute a part of the application, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0016] Figure 1 It is the structural schematic diagram of the first visual angle of the motor junction box in the utility model;

[0017] Figure 2 It is the structural schematic diagram of the second visual angle of the motor junction box in the utility model;

[0018] Figure 3 It is the structural schematic diagram of the first visual angle of the box body in the utility model;

[0019] Figure 4 It is the structural schematic diagram of the second visual angle of the box body in the utility model;

[0020] Figure 5 It is the structural schematic diagram of the first visual angle of the sealing gasket in the utility model;

[0021] Figure 6 It is the structural schematic diagram of the second visual angle of the sealing gasket in the utility model;

[0022] The box body 1, the opening 11, the wire slot 12, the mounting clamping groove 13, the positioning clamping groove 14, the first countersunk hole 15, the screw column 16, the reinforcing rib 17, the sealing gasket 2, the sealing sleeve 21, the mounting clamping strip 22, the positioning clamping strip 23, the second countersunk hole 24, and the wire groove 25 are indicated in the drawing. DETAILED DESCRIPTION

[0023] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] like Figures 1 to 6 As shown, a motor junction box includes a box body 1 and a sealing gasket 2. The box body 1 is installed on the outside of the motor housing with screws, and the sealing gasket 2 is sandwiched between the bottom end of the box body 1 and the outside of the motor housing.

[0025] The box body 1 is rectangular, and a first countersunk hole 15 is opened at each of the four corners of the box body 1; the sealing gasket 2 is "U" shaped, and a second countersunk hole 24 is opened at each of the four corners of the sealing gasket 2; the screw tails connecting the box body and the motor housing pass through the adjacent and coaxial first countersunk hole 15 and second countersunk hole 24 in sequence.

[0026] The inner side of the housing 1 is provided with four screw posts 16 arranged in a rectangular array to facilitate the installation of circuit boards in the housing 1; a grid-shaped reinforcing rib 17 is provided between the inner side of the housing 1 and the screw posts 16 to improve the strength of the housing 1; the inner surface of the housing 1 is sprayed with insulating paint to form an insulating layer to improve the insulation of the housing 1.

[0027] The bottom of the box 1 is provided with an opening 11 that communicates with the internal cavity of the box 1. The bottom rear side of the box 1 is provided with a wire passage groove 12 that communicates with the opening 11 and the internal cavity of the box 1. The upper rear side of the sealing gasket 2 is provided with a sealing sleeve 21 through which the power supply wire passes. The sealing sleeve 21 is integrally formed with the sealing gasket 2 and is stuck in the wire passage groove 12.

[0028] After the motor coil terminal passes through the motor housing, it enters the box directly through the opening at the bottom of the box. The external power cable enters the box through the cable tray, and the connection between the motor coil terminal and the external power cable is completed inside the box.

[0029] The sealing gasket is sandwiched between the box body and the outside of the motor housing to seal both the opening at the bottom of the box body and the wiring hole of the motor coil on the motor housing.

[0030] The bottom of the box body 1 is provided with a recessed mounting groove 13, and the top of the sealing gasket 2 is provided with an upward protruding mounting strip 22. The mounting strip 22 is engaged in the mounting groove 13, which facilitates the alignment and installation of the sealing gasket 2 and the box body 1, and improves the water-resistant sealing between the box body and the sealing gasket 2.

[0031] The groove wall of the wire passing groove 12 is provided with a positioning clamping groove 14 communicated with the mounting clamping groove 13, the outer side of the sealing sleeve 21 is provided with a positioning clamping strip 23 integrated with the mounting clamping strip 22, the positioning clamping strip 23 is clamped in the positioning clamping groove 14, on one hand, the sealing sleeve is clamped in the wire passing groove, on the other hand, the sealing property between the box body 1 and the sealing sleeve 21 is improved. The outer side of the sealing sleeve 21 is provided with two circular wire winding grooves 25, one of which is located inside the sealing gasket 2, and the other is located outside the sealing gasket 2.

[0032] The opening and the wire passing groove are communicated at the bottom of the box body, the sealing gasket and the sealing sleeve are integrally formed, the sealing processing points of the motor terminal box are combined, the sealing processing points are reduced, the parts of the motor terminal box are reduced, and thus the assembly is facilitated.

[0033] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. An electrical machine terminal box, characterized in that, include: The box body is installed on the outside of the motor housing with screws. The bottom of the box body has an opening that communicates with the internal cavity of the box body. The rear bottom of the box body has a wire passage groove that communicates with the opening and the internal cavity of the box body. A sealing gasket is sandwiched between the bottom of the housing and the outside of the motor housing. A sealing sleeve is provided on the upper rear side of the sealing gasket for the power supply wire to pass through. The sealing sleeve is integrally formed with the sealing gasket and is inserted into the wire groove.

2. The motor junction box of claim 1, wherein: The bottom of the box is provided with a recessed mounting groove, and the top of the sealing gasket is provided with an upwardly protruding mounting strip, which is engaged in the mounting groove.

3. The motor terminal box of claim 2, wherein: The groove wall of the wire guide is provided with a positioning groove that communicates with the mounting groove, and the outer side of the sealing sleeve is provided with a positioning strip that is integrated with the mounting strip, and the positioning strip is engaged in the positioning groove.

4. The motor junction box of claim 1, wherein: The box body is rectangular, and a first countersunk hole is opened at each of the four corners of the box body; the sealing gasket is "U" shaped, and a second countersunk hole is opened at each of the four corners of the sealing gasket.

5. The motor junction box of claim 1, wherein: The inner side of the box is provided with four screw posts arranged in a rectangular array, and a grid-shaped reinforcing rib is provided between the inner side of the box and the screw posts.

6. The motor junction box of claim 1, wherein: The inner surface of the box is coated with insulating paint to form an insulating layer.

7. The motor junction box of claim 1, wherein: The outer side of the sealing sleeve is provided with two annular winding grooves, one of which is located inside the sealing gasket and the other is located outside the sealing gasket.

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