Integrated base and motor

Abstract

The utility model discloses an integrated machine base, and relates to the technical field of motors, a junction box seat is integrally arranged on a machine base body, a junction box cover is used for being assembled with the junction box seat in a matched manner, and a first sealing gasket is pressed between contact surfaces between the junction box cover and the junction box seat; the wiring board is fixed in an inner cavity formed by the junction box seat and the junction box cover; an assembling groove is formed in the side wall of the wiring board, the second sealing gasket is annular, the inner edge of the second sealing gasket is clamped in the assembling groove of the wiring board, and the outer edge of the second sealing gasket makes contact with the inner wall of the junction box base to achieve sealing; as the junction box seat is integrally integrated on the base body, the junction box seat and the base body do not need to be additionally fixed, no seam exists between the junction box seat and the base body, the sealing performance can be improved, the second sealing gasket is arranged around the wiring board, and the second sealing gasket can be in contact fit with the junction box seat only by fixedly installing the wiring board; only the junction box cover needs to be hermetically installed in the whole structure, the installation process can be simplified, and the assembly process is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, further relates to an integrated base and motor. BACKGROUND

[0002] In order to conveniently connect electric wire, the outside of motor base is provided with terminal box, and the terminal box is provided with terminal row or terminal board to realize the electrical connection between external power cable and motor stator winding lead. The traditional terminal box and motor base generally adopt split structure, and the place on the motor base matched with the terminal box seat is called terminal box boss or terminal box base; the terminal box is divided into terminal box seat and terminal box cover, and the terminal box seat and terminal box cover are independently processed, the terminal box seat is installed on the outside of motor through bolt, and the terminal box cover is installed on the terminal box through bolt.

[0003] The split structure needs to set sealing gasket between the motor base and terminal box seat and set sealing gasket between the terminal box seat and terminal box cover, uses two sealing gaskets, is easy to age, and the protection performance risk is big, and installation is troublesome; the overall height of split terminal box is high, and the customer installation environment can not be satisfied. Since the motor vibrates when being used, long-time vibration can make the bolt loose, so that the gap between the terminal box seat and terminal box cover and between the terminal box seat and motor base appears, and the reliability of motor use is reduced.

[0004] At present, the terminal box seat and motor base are also designed in integrated mode, but the terminal board is cancelled, the wire led out by the stator is directly led out of the terminal box, and the auxiliary terminal box is arranged outside the motor base to facilitate star connection or angle connection, so that the structure is complex and inconvenient to install. The configuration of the existing integrated terminal box and base is that the sealing gasket is placed at the bottom of the terminal box, four screws are used to lock the bottom of the terminal box seat and the base, two screws are used to lock the terminal board from the inside of the terminal box seat, and finally four screws are used to lock the terminal box cover and the upper part of the terminal box seat, so that assembly is complicated.

[0005] For those skilled in the art, how to improve the convenience of integrated base assembly is a technical problem to be solved at present. INVENTION CONTENTS

[0006] The core of the utility model is to provide an integrated base, the terminal box seat is integrated in the base body, and the second sealing gasket is clamped on the outer periphery of the terminal board, so that the assembly process is simplified, and the specific scheme is as follows:

[0007] An integrated base comprises a base body, a terminal box cover and a terminal board, the terminal box seat is integrally arranged on the base body, the terminal box cover is used for matched assembly with the terminal box seat and is used for pressing the first sealing gasket;

[0008] The terminal board is fixed in the inner cavity formed by the terminal box seat and the terminal box cover; a side wall of the terminal board is provided with an assembly groove for clamping an inner edge of an annular second sealing gasket, and an outer edge of the second sealing gasket is used for contacting an inner wall of the terminal box seat to realize sealing.

[0009] Optionally, the terminal box seat is provided with a support block for supporting a bottom surface of the terminal board, and the support block is provided with a threaded hole for fixing the terminal board.

[0010] Optionally, the second sealing gasket is provided with a wire passing hole for passing a wire.

[0011] Optionally, a sealant is coated between the outer edge of the second sealing gasket and the inner wall of the terminal box seat.

[0012] Optionally, the terminal box cover is provided with a wire outlet hole for passing a wire outlet tube;

[0013] An inner end portion of the wire outlet tube is provided with a blocking flange, and a side wall is provided with a threaded segment; the outer diameter of the blocking flange is greater than the diameter of the wire outlet hole; the threaded segment is used for threadedly connecting a locking piece to fix the wire outlet tube to the terminal box cover.

[0014] Optionally, the wire outlet tube is provided with a bending segment, and a bending angle ranges from 0 to 90 degrees.

[0015] Optionally, an outer surface of the base body is integrally provided with an eye ring, and the eye ring is arranged directly above the base body; the eye ring is provided with an eye hole for passing a lifting hook or a lifting rope.

[0016] Optionally, the first sealing gasket is provided with a sealing hole, and an outer surface of the wire outlet tube can be in sealing contact with a side wall of the sealing hole.

[0017] Optionally, an upper surface of the terminal board is provided with a boss for improving an electrical clearance of a bolt to a terminal post and a safety creepage distance.

[0018] The utility model also provides a motor which comprises the integrated base as claimed in any one of the preceding claims.

[0019] The utility model provides an integrated machine base, wherein a junction box seat is integrally arranged on the machine base body, and the junction box cover is used for cooperating with the junction box seat for assembly, and a first sealing gasket is pressed between the contact surfaces between the junction box cover and the junction box seat; the junction board is fixed in the inner cavity formed by the junction box seat and the junction box cover; an assembly groove is arranged on the side wall of the junction board, and the second sealing gasket is annular, the inner edge of the second sealing gasket is clamped in the assembly groove of the junction board, and the outer edge of the second sealing gasket contacts the inner wall of the junction box seat to achieve sealing; since the junction box seat is integrally integrated into the machine base body, no additional fixation is required between the two, and no seam exists, which helps to improve the sealing performance, and the second sealing gasket is arranged around the junction board, and only the junction board needs to be fixed and installed to make the second sealing gasket contact and cooperate with the junction box seat; the entire structure only needs to seal the junction box cover, which can simplify the installation process and make the assembly process more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is the axonometric drawing of the integrated machine base of the utility model from the first perspective;

[0022] Figure 2 This is an axonometric drawing of the integrated machine base of the utility model from the second perspective;

[0023] Figure 3 An axonometric view of the connection plate and the second sealing gasket in cooperation with each other;

[0024] Figure 4 This is an axonometric drawing of the terminal block;

[0025] Figure 5 This is the axonometric drawing of the junction box cover;

[0026] Figure 6 is an axonometric view of the first sealing gasket;

[0027] Figure 7 is a front view of the second sealing gasket;

[0028] Figure 8 This is the front view of the outlet pipe;

[0029] Figure 9 This is a front view of the locking piece.

[0030] The diagram includes:

[0031] Base body 1, junction box seat 11, support block 12, threaded hole 121, lifting ring 13, hanging hole 131, junction box cover 2, wire outlet hole 21, terminal block 3, assembly groove 31, boss 32, terminal post 33, copper crimping joint 34, connecting piece 35, heat shrink tube 341, first sealing gasket 4, sealing hole 41, second sealing gasket 5, wire hole 51, wire outlet tube 6, blocking flange 61, threaded section 62, locking piece 7. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the integrated machine base of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0033] Combine Figure 1 、 Figure 2 As shown, the utility model provides an integrated motor base, including a motor base body 1, a junction box cover 2, a junction board 3 and other structures. The motor base body 1 is the main shell structure of the motor, and the rotor and other structures are installed inside the motor base body 1.

[0034] A junction box seat 11 is integrally formed on the base body 1. This seat protrudes from the base body 1, forming a protruding structure on the exterior of the base body 1. The interior of the junction box seat 11 provides space for placement of a terminal block 3 and other components. The junction box seat 11 can be integrally cast with the base body 1 or welded to the base body 1, ensuring that there is no gap between the base body 1 and the junction box seat 11.

[0035] The junction box cover 2 is used to cooperate with the junction box seat 11 for assembly and press-fitting the first sealing gasket 4. The junction box seat 11 is provided with an opening for taking in and placing the terminal board 3 and other structures on the side away from the junction box cover 2. The junction box cover 2 contacts the opening edge of the junction box seat 11. The first sealing gasket 4 is pressed between the junction box cover 2 and the junction box seat 11. The first sealing gasket 4 strengthens the sealing effect of the gap between the junction box cover 2 and the junction box seat 11 to ensure waterproof and dustproof.

[0036] The terminal block 3 is fixed in the inner cavity formed by the junction box seat 11 and the junction box cover 2. The terminal block 3 can be fixed to the inner cavity of the junction box seat 11 by bolts or snap-on assembly. When the junction box cover 2 is installed, the inner cavity formed by the junction box seat 11 and the junction box cover 2 is isolated from the outside world, and the terminal block 3 works in an environment not affected by the outside world.

[0037] Combine Figure 3 、 Figure 4As shown, the terminal block 3 is a plate-like structure with a certain thickness. The side wall of the terminal block 3 is provided with a mounting groove 31. The mounting groove 31 is a concave structure formed on the outside of the side wall. The mounting groove 31 can be a complete circle of concave, or it can be a discontinuous groove formed by several discontinuous concave grooves along the circumference. The mounting groove 31 is used for the inner edge of the annular second sealing gasket 5 to be clamped. Figure 7 As shown, the second sealing gasket 5 is an annular gasket structure with an opening in the middle. The outer edge of the second sealing gasket 5 matches the inner wall shape of the junction box seat 11, and the inner edge of the second sealing gasket 5 matches the shape of the assembly groove 31. The inner edge thickness of the second sealing gasket 5 is less than the width of the assembly groove 31, and the inner edge of the second sealing gasket 5 can be precisely snapped into the assembly groove 31. To facilitate assembly and achieve better sealing performance, the assembly groove 31 preferably adopts a complete annular structure. When the inner edge of the second sealing gasket 5 is snapped into the assembly groove 31, an overlapping area exists between the inner edge of the second sealing gasket 5 and the terminal block 3, which can achieve a better sealing effect. After the terminal block 3 is assembled, the outer edge of the second sealing gasket 5 contacts the inner wall of the junction box seat 11 to achieve a seal. The outer edge of the second sealing gasket 5 contacts the inner wall of the junction box seat 11 to prevent external dust or impurities from entering, for example, providing shielding when the junction box cover 2 is opened. In order to improve the sealing performance of the outer edge of the second sealing gasket 5 , the outer edge of the second sealing gasket 5 may be thickened to increase the contact area with the inner wall of the junction box seat 11 .

[0038] With the integrated base provided by the present invention, the junction box seat 11 is integrally integrated with the base body 1, eliminating the need for additional fixings and creating a seam-free joint, which helps improve sealing. A second sealing gasket 5 is provided around the perimeter of the terminal block 3. Simply attaching the terminal block 3 to the junction box seat 11 allows the second sealing gasket 5 to engage with the junction box seat 11. During assembly, only the terminal block 3 needs to be installed within the junction box seat 11 and the junction box cover 2 sealed. There is no need to consider the assembly and sealing of the junction box seat 11 and the base body 1, simplifying the installation process and making it more convenient.

[0039] On the basis of the above scheme, the junction box seat 11 of the present invention is provided with a support block 12, combined with Figure 2 As shown, the support block 12 is located on the bottom surface of the junction box seat 11. The support block 12 can also be considered as a structure arranged on the outer surface of the base body 1. The support block 12 protrudes from the outer surface of the base body 1. The support block 12 is used to support the bottom surface of the terminal block 3. The support block 12 is provided with a threaded hole 121 for fixing the terminal block 3. During assembly, the bottom surface of the terminal block 3 is first contacted with the support block 12, and then the bolts are installed in the threaded holes 121, thereby realizing a relatively fixed connection between the terminal block 3 and the support block 12. Figure 2The support block 12 is provided with two threaded holes 121, and the terminal block 3 is fixedly assembled by two bolts. The area of ​​the support block 12 is smaller than the bottom area of ​​the terminal block 3, avoiding structures such as wiring harnesses. Figure 2 The support block 12 is long and narrow, contacting and supporting the middle area of ​​the wiring board 3. In addition, the support block 12 can also be set on both sides and support the two side edges of the wiring board 3, which can also ensure a stable support effect.

[0040] The second sealing pad 5 is provided with a wire hole 51 for passing the wire. Figure 7 As shown, the wire holes 51 are arranged near the opposite edges on both sides, and each wire hole 51 corresponds to passing a wire, and the wire hole 51 forms a tight sealing contact relationship with the wire.

[0041] To further improve sealing, after the terminal block 3 is installed, sealant is applied between the outer edge of the second sealing gasket 5 and the inner wall of the junction box seat 11 to ensure better sealing of the outer edge of the second sealing gasket 5 .

[0042] On the basis of any of the above technical solutions and their mutual combination, the utility model provides a wire outlet hole 21 on the junction box cover 2, combined with Figure 5 As shown, the outlet hole 21 is provided in the central area of ​​the junction box cover 2; the position of the outlet hole 21 is not limited to the central area. The outlet hole 21 on the junction box cover 2 is used for the outlet tube 6 to pass through.

[0043] Combine Figure 8 As shown, a blocking flange 61 is provided at the inner end of the outlet pipe 6. The outer diameter of the blocking flange 61 is larger than the radial dimension of the outlet hole 21. The outer end of the outlet pipe 6 can pass through the outlet hole 21. A threaded section 62 is provided on the side wall of the outlet pipe 6. The threaded section 62 is located near the blocking flange 61. Figure 9 As shown, the outer diameter of the locking piece 7 is larger than the diameter of the wire outlet hole 21 , and the inner edge of the locking piece 7 is provided with an internal thread that cooperates with the thread segment 62 . Figure 8 The locking piece 7 is shaped like a plum blossom, but may also have other shapes.

[0044] Since the outer diameter of the blocking flange 61 is larger than the diameter of the wire outlet hole 21, during assembly, the outer end of the wire outlet pipe 6 is passed through the wire outlet hole 21 until the blocking flange 61 contacts the inner surface of the junction box cover 2, so that the outer part of the wire outlet pipe 6 extends out of the junction box cover 2, and the locking piece 7 is inserted from the outer end. The threaded section 62 is threadedly connected with the locking piece 7, and the locking piece 7 is gradually tightened and pressed against the outer surface of the junction box cover 2. The locking piece 7 and the blocking flange 61 are clamped together to fix the wire outlet pipe 6 to the junction box cover 2.

[0045] The outlet pipe 6 is provided with a bending section, and the bending angle ranges from 0 to 90 degrees. Figure 8As shown, the bending section is located at the position of the threaded section 62 closer to the outer end, and the bending angle changes the lead-out direction of the lead wire. Due to the bending angle, the lead wire led out from the terminal block seat 11 can be directed to different directions by adjusting the orientation of the bending angle. When it is necessary to change the lead-out direction of the lead wire, the locking piece 7 is loosened first, the lead-out tube 6 is turned to adjust the orientation, and after the adjustment is completed, the locking piece 7 is tightened again.

[0046] In combination Figure 1 , Figure 2 As shown, the outer surface of the base body 1 is integrally provided with a lifting ring 13, which is integrally cast with the base body 1 or fixed by welding. The lifting ring 13 is provided with a lifting hole 131 for the lifting hook or lifting rope to pass through, which can be used for lifting during transfer. The lifting ring 13 is arranged directly above the base body 1, so that the orientation of the base body 1 can be avoided during lifting.

[0047] In combination Figure 6 As shown, the first sealing gasket 4 is provided with a sealing hole 41, the position of which matches the lead-out hole 21, and the outer surface of the lead-out tube 6 can form a sealing contact with the side wall of the sealing hole 41, so as to improve the sealing performance of the lead-out tube 6. The periphery of the first sealing gasket 4 is provided with a through hole for avoiding the bolt, and the bolt for fixing the terminal block cover 2 can pass through the through hole. The periphery of the first sealing gasket 4 is a relatively thin flat gasket, and the middle region is thicker, so as to form a middle boss, and the middle region of the terminal block cover 2 is provided with a groove, which can be matched with the middle boss of the first sealing gasket 4, so as to play a sealing role. The middle region of the first sealing gasket 4 is thicker, and the sealing hole 41 is arranged in this region, so as to form a larger contact area with the lead-out tube 6. During assembly, the lead-out tube 6 passes through the sealing hole 41 and then passes through the lead-out hole 21, and the blocking flange 61 contacts the back surface of the first sealing gasket 4.

[0048] In combination Figure 3 , Figure 4 As shown, the upper surface of the terminal plate 3 is provided with a boss 32, which is a raised structure protruding from the upper surface of the terminal plate 3, and the boss 32 is used to improve the electrical clearance and the safe creepage distance of the bolt to the terminal post 33.

[0049] In summary, the integrated base integrates the terminal block seat 11 and the base body 1, reduces the installation of the terminal plate 3 and the terminal block seat 11, is simple to install, and reduces material costs. The terminal plate 3 and the second sealing gasket 5 are designed in an embedded integrated manner, which improves the sealing performance of the second sealing gasket 5 and the inner wall of the terminal block seat 11. The lead-out tube 6 and the terminal block seat 11 are locked by the locking piece 7, so that the lead-out direction of the motor is no longer limited by the four lead-out directions of the four side walls of the terminal block, and the lead-out direction can meet the 360-degree lead-out direction; the lifting ring 13 is designed in an integrated manner with the base body 1.

[0050] The utility model also provides a motor, comprising the above-mentioned integrated base, which can achieve the same technical effect.

[0051] The motor integrates the terminal box seat 11 into an integrated design. The terminal board 3 is directly installed into the terminal box seat 11 using two screws. The first sealing gasket 4 is provided with a sealing hole 41, and the terminal box cover 2 is provided with a wire outlet hole 21. During installation, the outer end of the outlet pipe 6 is passed through the sealing hole 41 and the wire outlet hole 21 in sequence, so that a part of the outlet pipe 6 extends outside the terminal box cover 2. Then, the locking piece 7 is inserted into the outlet pipe 6 and cooperates with the threaded section 62 and is locked with the locking piece 7. Finally, the terminal box cover 2 is fixed to the terminal box seat 11 with four screws. The installation is simple and the outlet pipe 6 can be rotated 360 degrees.

[0052] A margin is left during casting at the connection between the integrated junction box seat 11 and the first sealing gasket 4 to facilitate machining and polishing to improve sealing.

[0053] When installing at the junction box, first fit the elastic second sealing gasket 5 into the assembly groove 31 of the terminal block 3; then pass the lead wire of the motor stator through the wire hole 51 of the second sealing gasket 5 and connect it to the heat shrink tube 341 of the copper crimping joint 34 on the terminal post 33 on the terminal block 3, then use the connecting piece 35 to make a star-delta connection on the terminal post 33 on the terminal block 3, and finally fix the terminal block 3 to the support block 12 in the terminal box seat 11 with two bolts.

[0054] The terminal block 3 and boss 32 are integrally injection-molded. The boss 32 increases the electrical clearance and creepage distance between the two bolts and the terminal block 33. Once installed, the second gasket 5 seamlessly fits within the inner wall of the integrated terminal block base 11, preventing small objects like screws and washers from slipping into the base. It also secures the stator leads. Glue can be applied to the joint to improve the seal between the second gasket 5 and the inner wall of the integrated terminal block base 11.

[0055] The outlet tube 6 is made of thin steel, with a blocking flange 61 at its bottom edge and external threads on its outer surface. During installation, the external wire leading from the terminal 33 first passes through the outlet tube 6, then through the center hole of the first sealing gasket 4, and finally through the outlet hole 21 of the junction box cover 2. The locking piece 7 is screwed to the upper portion of the junction box cover 2. When tightening, first fix the direction of the outlet tube 6, then manually tighten it to achieve 360-degree wire outlet. Finally, install the four screws through the holes at the four corners of the junction box cover 2 to the integrated junction box seat 11 on the base body 1.

[0056] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated machine base, characterized in that: It comprises a base body (1), a junction box cover (2), and a junction board (3); the base body (1) is integrally provided with a junction box seat (11); the junction box cover (2) is used for cooperating with the junction box seat (11) and press-fitting a first sealing gasket (4); The terminal block (3) is fixed in an inner cavity formed by the terminal box seat (11) and the terminal box cover (2); a mounting groove (31) is provided on a side wall of the terminal block (3) for clamping the inner edge of the annular second sealing gasket (5); the outer edge of the second sealing gasket (5) is used to contact the inner wall of the terminal box seat (11) to achieve sealing.

2. The integrated machine base according to claim 1, characterized in that: The junction box seat (11) is provided with a support block (12), the support block (12) is used to support the bottom surface of the junction board (3), and the support block (12) is provided with a threaded hole (121) for fixing the junction board (3).

3. The integrated machine base according to claim 1, characterized in that: The second sealing pad (5) is provided with a wire hole (51) for passing a wire.

4. The integrated machine base according to claim 1, characterized in that: Sealant is applied between the outer edge of the second sealing gasket (5) and the inner wall of the junction box seat (11).

5. The integrated machine base according to any one of claims 1 to 4, characterized in that: A wire outlet hole (21) is provided on the junction box cover (2), and the wire outlet hole (21) is used for allowing the wire outlet tube (6) to pass through; A blocking flange (61) is provided at the inner end of the outlet pipe (6), and a threaded section (62) is provided on the side wall. The outer diameter of the blocking flange (61) is larger than the diameter of the outlet hole (21). The threaded section (62) is used to cooperate with the locking piece (7) for threaded connection, so as to fix the outlet pipe (6) to the junction box cover (2).

6. The integrated machine base according to claim 5, characterized in that: The outlet pipe (6) is provided with a bending section, and the bending angle ranges from 0 to 90 degrees.

7. The integrated machine base according to claim 5, characterized in that: A lifting ring (13) is integrally provided on the outer surface of the machine base body (1), and the lifting ring (13) is provided directly above the machine base body (1); a lifting hole (131) is provided on the lifting ring (13), and the lifting hole (131) is used for a lifting hook or a lifting rope to pass through.

8. The integrated machine base according to claim 5, characterized in that: The first sealing gasket (4) is provided with a sealing hole (41), and the outer surface of the outlet tube (6) is capable of forming a sealing contact with the side wall of the sealing hole (41).

9. The integrated machine base according to claim 5, characterized in that: A boss (32) is provided on the upper surface of the terminal block (3), and the boss (32) is used to increase the electrical clearance and safe creepage distance between the bolt and the terminal post (33).

10. A motor, characterized in that: The integrated machine base comprises the one-piece machine base according to any one of claims 1 to 9.

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