Quick connecting device of motor wire

Abstract

The utility model discloses a quick connecting device for motor wires, which comprises a junction box and a box cover, a terminal wire holder is fixed in the junction box, six binding posts are fixed at the top of the terminal wire holder, and the distance between adjacent longitudinal binding posts is equal to the distance between adjacent transverse binding posts. Two first pressing plates and three second pressing plates are arranged at the bottom of the box cover, rubber sheets are fixed to the lower end of each first pressing plate and the lower end of each second pressing plate, the two first pressing plates and the three binding posts on the same side are arranged at intervals, and the three second pressing plates are located among the three binding posts on the two sides and correspond to one another in position; the rubber sheets abut against the tops of the copper sheets connected between the adjacent binding posts, and the box cover is provided with an abutting assembly used for abutting against connecting wires connected with the binding posts. After the box cover is covered, the rubber sheet at the bottom of the first pressing plate or the second pressing plate abuts against the copper sheet so as to ensure the stability of the copper sheet, and the abutting assembly keeps the connection stability of the motor connecting wire.

Description

Technical Field

[0001] This utility model relates to the field of motor wire connection technology, and in particular to a quick connection device for motor wires. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The junction box of the motor, as an electrical accessory of the motor, is used to connect the motor terminals and the connecting wires for conducting electricity.

[0003] Chinese utility model patent CN222423399U discloses a protective component and a motor wiring structure. The protective component includes a motor, a junction box is fixedly installed on the top outer wall of the motor, a cover is bolted to the top outer wall of the junction box, a wiring plate is fixedly installed on the bottom inner wall of the junction box, and multiple fixing screws are threaded on the top outer wall of the wiring plate. A protective mechanism is provided inside the junction box, and a connecting mechanism is provided on the outside of the junction box. The protective mechanism includes a protective part and an adjusting part. The protective part is located inside the junction box, and the adjusting part is located on both sides of the protective part. The connecting mechanism includes a connecting part and a fastening part. The connecting part is located on one side of the junction box, and the fastening part is located on the outside of the connecting part.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When wiring the motor, the copper plates connecting adjacent terminals or the connecting wires connected to the terminals are mainly fixed by tightening the fixing screws. The motor has six terminals, and the fixing screws need to be tightened multiple times to complete the wiring operation. After the wiring is completed, the cover needs to be connected and fixed to the junction box with screws, which is a rather cumbersome operation. Therefore, the relevant technologies need to be improved and designed. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a quick connection device for motor wires.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick connection device for motor wires, including a junction box fixed to the outer shell of the motor body, a cover connected to the top of the junction box by screws, a terminal block fixed inside the junction box, six terminals fixed to the top of the terminal block, the distance between adjacent longitudinal terminals being equal to the distance between adjacent transverse terminals, two first pressure plates and three second pressure plates at the bottom of the cover, a rubber sheet fixed to the lower end of each first pressure plate and the lower end of each second pressure plate, the two first pressure plates being spaced apart from the three terminals on the same side, the three second pressure plates being located between the three sets of terminals on both sides and corresponding to each other, the rubber sheet pressing against the top of the copper sheet connecting adjacent terminals, and a pressing component for pressing against the connecting wires connecting the terminals on the cover.

[0007] By adopting the above technical solution, when the motor wiring uses a star connection, after closing the cover and tightening the screws, the first pressure plate at the bottom of the cover presses the copper plates between adjacent terminals on the same side using a rubber sheet, ensuring the stability of the copper plates during motor use. The clamping component further ensures the tightness of the connecting wires to the connecting terminals, guaranteeing the stability of the motor's connection wires during use. When the motor wiring uses a delta connection, after closing the cover and tightening the screws, the second pressure plate at the bottom of the cover presses the copper plates between adjacent terminals on both sides using a rubber sheet, ensuring the stability of the copper plates. The clamping component continues to maintain the connection stability of the motor's connection wires.

[0008] Furthermore, one end of the connecting wire is provided with a connecting ring that mates with the terminal block, and a color-block is provided through the cover and fixed to the cover. The number of color-blocks is equal to the number of sets of clamping components and their positions correspond one-to-one. The clamping component includes a clamping post that is provided through the color-block and threadedly connected to the color-block. The lower end of the clamping post is provided with a clearance hole for the terminal block to make way for it. The clamping component also includes a circular rubber ring fixed to the lower end of the clamping post, and the bottom of the circular rubber ring abuts against the top of the connecting ring.

[0009] By adopting the above technical solution, after tightening the clamping post, one of the terminal posts enters the clearance hole at the lower end of the clamping post, and the circular rubber ring presses the terminal ring of the connecting wire, ensuring the stability of the motor connecting wire.

[0010] Furthermore, a slot is provided at the upper end of the abutment post.

[0011] By adopting the above technical solution, workers can tighten the retaining column using a flathead screwdriver.

[0012] Furthermore, the color-blocking includes an upper block and a lower block of different colors, and the thickness of the upper block is equal to the thickness of the copper sheet.

[0013] By adopting the above technical solution, when the motor wiring uses a star connection, the operator needs to use a screwdriver to tighten the clamping post so that the upper end of the clamping post is flush with the top of the lower block. At this time, the circular rubber ring precisely abuts against the connector ring of the connecting wire. When the motor wiring uses a delta connection, the operator needs to use a screwdriver to tighten the clamping post so that the upper end of the clamping post is flush with the top of the upper block. At this time, the circular rubber ring precisely abuts against the connector ring of the connecting wire.

[0014] Furthermore, the top of the junction box is snapped into the bottom of the cover, an annular block is fixed to the outer wall of the junction box, a rectangular rubber ring is fixed to the top of the annular block, and the top of the rectangular rubber ring abuts against the bottom of the junction box.

[0015] By adopting the above technical solution, the rectangular rubber ring ensures the seal between the cover and the junction box, which helps to improve the waterproofness of the motor wiring part.

[0016] Furthermore, the bottom of the box lid is integrally formed with an annular rim, and the inner side of the annular rim abuts against the outer side of the annular block.

[0017] By adopting the above technical solution, the setting of the annular edge extends the aging time and service life of the rectangular rubber ring.

[0018] Furthermore, the side wall of the junction box is provided with a through hole for three connecting wires to pass through, and a wire harness sleeve for three connecting wires to pass through is fixed on the outer wall of the junction box near the through hole.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This application only requires closing the box and tightening the screws after connecting the wires, eliminating the cumbersome operation of fixing the wires with screws required by traditional technology, thus improving wiring efficiency;

[0021] 2. In this application, after tightening the clamping post, one of the terminal posts enters the clearance hole at the lower end of the clamping post, and the circular rubber ring presses the terminal ring of the connecting wire, ensuring the stability of the motor connecting wire. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram illustrating the internal structure of the junction box in this embodiment of the utility model;

[0024] Figure 3 This is an exploded view of the junction box when the motor is connected in a star configuration in this embodiment of the present invention.

[0025] Figure 4 , Figure 5 These are all schematic diagrams of the internal structure of the junction box when the motor is connected in a delta configuration in the embodiments of this utility model;

[0026] Figure 6 This is a schematic diagram illustrating the structure of the clamping component in an embodiment of this utility model;

[0027] Figure 7 yes Figure 6 Enlarged diagram of point A in the middle.

[0028] In the diagram: 1. Motor body; 2. Junction box; 3. Box cover; 31. Annular edging; 32. Screw; 4. Terminal block; 41. Terminal post; 5. First pressure plate; 6. Second pressure plate; 7. Rubber sheet; 8. Clamping assembly; 81. Clamping post; 811. Slotted groove; 812. Clearance hole; 82. Circular rubber ring; 9. Connecting wire; 91. Terminal ring; 10. Color block; 101. Upper block; 102. Lower block; 11. Annular block; 111. Rectangular rubber ring; 12. Wire harness sleeve; 13. Copper sheet. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-7 As shown in the embodiment of this application, a quick connection device for motor wires is disclosed, including a junction box 2 fixed to the outer shell of the motor body 1. A cover 3 is connected to the top of the junction box 2 by screws 32. A terminal block 4 is fixed inside the junction box 2. Six terminals 41 are fixed on the top of the terminal block 4. The distance between adjacent longitudinal terminals 41 is equal to the distance between adjacent transverse terminals 41. Two first pressure plates 5 and three second pressure plates 6 are located at the bottom of the cover 3. A rubber sheet 7 is fixed to the lower end of each first pressure plate 5 and the lower end of each second pressure plate 6. The two first pressure plates 5 are spaced apart from the three terminals 41 on the same side. The three second pressure plates 6 are located between the three sets of terminals 41 on both sides and their positions correspond one-to-one. The rubber sheet 7 presses against the top of the copper sheet 13 connecting the adjacent terminals 41. A pressing component 8 is provided on the cover 3 for pressing against the connecting wire 9 connecting the terminals 41.

[0031] When the motor wiring uses a star connection, after closing the cover 3 and tightening the screw 32, the first pressure plate 5 at the bottom of the cover 3 presses the copper sheet 13 between adjacent terminals 41 on the same side through the rubber sheet 7, ensuring the stability of the copper sheet 13 during motor use. The clamping component 8 then clamps the connecting wire 9 of the connecting terminals 41 to ensure the stability of the motor connecting wire 9 during use. When the motor wiring uses a delta connection, after closing the cover 3 and tightening the screw 32, the second pressure plate 6 at the bottom of the cover 3 presses the copper sheet 13 between adjacent terminals 41 on both sides through the rubber sheet 7 to ensure the stability of the copper sheet 13. The clamping component 8 then continues to maintain the connection stability of the motor connecting wire 9.

[0032] To ensure the safety of the motor, a grounding post (not shown in the figure) is also fixed on the terminal block 4 inside the junction box 2. When connecting the motor wiring, the grounding wire should be connected to the grounding post. This part is existing technology and will not be described in detail here.

[0033] One end of the connecting wire 9 is provided with a connecting ring 91 that mates with the terminal 41. A color-block 10 is provided through the cover 3 and fixed to the cover 3. The number of color-blocks 10 is equal to the number of sets of the clamping components 8 and their positions correspond one-to-one. The clamping components 8 include a clamping post 81 (made of insulating material, such as plastic) that is provided through the color-block 10 and threadedly connected to the color-block 10. The upper end of the clamping post 81 is provided with a slot 811. The lower end of the clamping post 81 is provided with a clearance hole 812 for making way for the terminal 41 at the position corresponding to the terminal 41. The clamping components 8 also include a circular rubber ring 82 fixed to the lower end of the clamping post 81. The bottom of the circular rubber ring 82 abuts against the top of the connecting ring 91.

[0034] After tightening the clamping post 81, the terminal post 41 on one side enters the clearance hole 812 at the lower end of the clamping post 81, and the circular rubber ring 82 presses the terminal ring 91 of the connecting wire 9, ensuring the stability of the motor connecting wire 9.

[0035] The color-block 10 includes an upper block 101 and a lower block 102 of different colors. The thickness of the upper block 101 is equal to the thickness of the copper sheet 13. When the motor wiring uses a star connection, the operator needs to use a screwdriver to tighten the clamping post 81 so that the upper end of the clamping post 81 is flush with the top of the lower block 102 (this can be easily determined by the different colors of the upper and lower blocks 101). At this time, the circular rubber ring 82 is precisely pressed against the terminal ring 91 of the connecting wire 9, ensuring that it will not be damaged or loosened. When the motor wiring uses a delta connection, the operator needs to use a screwdriver to tighten the clamping post 81 so that the upper end of the clamping post 81 is flush with the top of the upper block 101. At this time, the circular rubber ring 82 is precisely pressed against the terminal ring 91 of the connecting wire 9.

[0036] The top of junction box 2 is snapped into place with the bottom of cover 3. An annular block 11 is fixed to the outer wall of junction box 2, and a rectangular rubber ring 111 is fixed to the top of the annular block 11. The top of the rectangular rubber ring 111 abuts against the bottom of junction box 2. The rectangular rubber ring 111 ensures a tight seal between cover 3 and junction box 2, which helps improve the waterproofness of the motor wiring section. To enhance the waterproofness around the clamping post 81, waterproof coating can be applied to the intersection between the terminal post 41 and the color-block 10 after tightening the terminal post 41, ensuring the waterproofness of the motor wiring section.

[0037] The bottom of the lid 3 is integrally formed with an annular edging 31, the inner side of which abuts against the outer side of the annular block 11. The annular edging 31 extends the aging time and service life of the rectangular rubber ring 111.

[0038] The side wall of the junction box 2 has a through hole (not shown in the figure) for three connecting wires 9 to pass through. A wire harness sleeve 12 for the three connecting wires 9 to pass through is fixed on the outer wall of the junction box 2 near the through hole. To ensure the waterproofness of the motor wiring part, the part between the wire harness sleeve 12 and the connecting wires 9 can also be filled with waterproof coating.

[0039] The operating principle of the quick connection device for motor wires in this embodiment is as follows: When the motor wiring adopts a star connection, after closing the cover 3 and tightening the screw 32, the first pressure plate 5 at the bottom of the cover 3 presses the copper sheet 13 between adjacent terminals 41 on the same side through the rubber sheet 7, ensuring the stability of the copper sheet 13 during motor use. The clamping component 8 then clamps the connecting wire 9 of the connecting terminals 41 to ensure the stability of the motor connecting wire 9 during use. When the motor wiring adopts a delta connection, after closing the cover 3 and tightening the screw 32, the second pressure plate 6 at the bottom of the cover 3 presses the copper sheet 13 between adjacent terminals 41 on both sides through the rubber sheet 7 to ensure the stability of the copper sheet 13. The clamping component 8 then continues to maintain the connection stability of the motor connecting wire 9.

[0040] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A quick-connect device for motor wires, comprising a junction box (2) fixed to the outer shell of a motor body (1), wherein a cover (3) is connected to the top of the junction box (2) by screws (32), a terminal block (4) is fixed inside the junction box (2), and six terminals (41) are fixed to the top of the terminal block (4), wherein the distance between adjacent longitudinal terminals (41) is equal to the distance between adjacent transverse terminals (41), characterized in that: The bottom of the cover (3) has two first pressure plates (5) and three second pressure plates (6). Each first pressure plate (5) and the lower end of the second pressure plate (6) are fixed with a rubber sheet (7). The two first pressure plates (5) are spaced apart from the three terminals (41) on the same side. The three second pressure plates (6) are located between the three sets of terminals (41) on both sides and their positions correspond one to one. The rubber sheet (7) presses against the top of the copper sheet (13) connecting the adjacent terminals (41). The cover (3) is provided with a pressing component (8) for pressing against the connecting wire (9) connecting the terminals (41).

2. The quick connection device for motor wires according to claim 1, characterized in that: One end of the connecting wire (9) is provided with a connecting ring (91) that cooperates with the terminal block (41). A color block (10) is provided through the cover (3) and fixed to the cover (3). The number of color blocks (10) is equal to the number of sets of the clamping components (8) and their positions correspond one-to-one. The clamping component (8) includes a clamping post (81) that is provided through the color block (10) and threadedly connected to the color block (10). A clearance hole (812) for making way for the terminal block (41) is provided at the lower end of the clamping post (81) at the position corresponding to the terminal block (41). The clamping component (8) also includes a circular rubber ring (82) fixed to the lower end of the clamping post (81). The bottom of the circular rubber ring (82) is abutted against the top of the connecting ring (91).

3. The quick connection device for motor wires according to claim 2, characterized in that: The upper end of the clamping post (81) is provided with a slot (811).

4. The quick connection device for motor wires according to claim 3, characterized in that: The color block (10) includes an upper block (101) and a lower block (102) of different colors, and the thickness of the upper block (101) is equal to the thickness of the copper sheet (13).

5. A quick connection device for motor wires according to claim 4, characterized in that: The top of the junction box (2) is engaged with the bottom of the cover (3). An annular block (11) is fixed on the outer wall of the junction box (2). A rectangular rubber ring (111) is fixed on the top of the annular block (11). The top of the rectangular rubber ring (111) is pressed against the bottom of the junction box (2).

6. A quick-connect device for motor wires according to claim 5, characterized in that: The bottom of the box cover (3) is integrally formed with an annular edging (31), and the inner side of the annular edging (31) abuts against the outer side of the annular block (11).

7. A quick connection device for motor wires according to claim 5, characterized in that: The junction box (2) has a through hole on its side wall for three connecting wires (9) to pass through, and a wire harness sleeve (12) for three connecting wires (9) to pass through is fixed on the outer wall of the junction box (2) near the through hole.

Images