Motor connecting seat

Abstract

The invention relates to the technical field of connectors, in particular to a motor wire holder which is technically characterized in that the motor wire holder comprises a plastic body and further comprises a soft copper bar set, a plastic body fixing plate and a protective shell, the fixing plate is a rectangular plate, the protective shell is located below the fixing plate, and the protective shell is perpendicular to the fixing plate; one side, pointing away from the protective shell, of the fixing plate extends upwards to form a fixing part, a plurality of magnetic rings are arranged in the fixing part, the magnetic rings are used for being arranged on the periphery of the soft copper bar in a sleeving mode, the fixing part is further filled with sealant, and the sealant is filled in an internal gap of the fixing part. And the fixing part is used for fixing the positions of the magnetic ring, the fixing part and the soft copper bar group. By adopting the fluororubber sealing ring with high elasticity and corrosion resistance and filling the sealant with excellent performance, the motor wire holder is ensured to be capable of effectively preventing the invasion of external environments such as moisture, dust and the like in the long-term use process.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a motor connecting socket. Background Art

[0002] In the technical field of motor terminal blocks, there have been a variety of designs that have been continuously improved and innovated to improve wiring efficiency, reduce costs, and enhance structural reliability. With the rapid development of industrial automation, motor terminal blocks are important connecting components between motors and power supplies or control systems. Their performance and quality are directly related to the operating efficiency and stability of the entire motor system. Traditional motor terminal block designs often have problems such as complex wiring, poor sealing, and easy damage. These problems not only increase maintenance costs, but may also pose a potential threat to the normal operation of the motor.

[0003] In order to solve these problems, the industry has continuously introduced new motor terminal block designs. Among them, some designs simplify the wiring process and improve wiring efficiency by optimizing the wiring structure; other designs improve the durability and corrosion resistance of the terminal block by adopting new materials or strengthening the structural strength. However, although these designs have improved the performance of the motor terminal block to a certain extent, they still have certain limitations when facing harsh working conditions such as high pressure, high temperature, and high humidity.

[0004] For example, the three-phase wiring structure of a motor disclosed in the invention of application number 201821550842 4 is designed by integrating the three-phase terminal block with the three-phase copper busbar by injection molding and extending the three-phase terminal block and the three-phase copper busbar, so that the motor terminal block and the three-phase terminal block are directly connected to the three-phase terminal of the motor, making the sealing between the terminal block and the copper busbar more reliable, and the automated assembly easier to operate, reducing material costs and assembly hours, and improving production efficiency. However, some motor terminal blocks are in a high-pressure environment for a long time during use, so good sealing is required, and the above-mentioned three-phase wiring structure of the motor does not require sealing. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is that the motor terminal socket in the prior art does not make specific requirements on the sealing performance.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A motor terminal socket comprises a plastic body and a soft copper busbar group, the plastic body has a fixing plate and a protective shell, the fixing plate is arranged in a rectangular plate shape, the protective shell is located below the fixing plate, and the protective shell is arranged perpendicular to the fixing plate; the fixing plate is provided with a fixing portion extending upwardly away from the protective shell, a plurality of magnetic rings are arranged in the fixing portion, the magnetic rings are used to be sleeved on the outer periphery of the soft copper busbar, the fixing portion is also filled with sealant, the sealant is filled in the internal gap of the fixing portion, and is used to fix the positions of the magnetic rings, the fixing portion and the soft copper busbar group.

[0008] Preferably, both ends of the fixing portion in the length direction are arranged in an arc shape, and the arc openings on both sides are arranged opposite to each other, and both ends of the fixing portion in the width direction are arranged in a long strip shape.

[0009] Preferably, a plurality of threaded holes are provided on both sides of the fixing plate in the length direction, and the threaded holes are used for fixing the fixing plate.

[0010] Preferably, a limiting column is provided on the fixing plate and extends downwardly toward one side of the guard plate.

[0011] Preferably, a card slot is provided below the fixing plate, the card slot is located on the side of the fixing plate pointing to the protective shell, the card slot is arranged around the protective shell, the card slot is arranged in a rounded rectangular shape, and a sealing ring is embedded in the card slot.

[0012] Preferably, the cross section of the sealing ring in the vertical direction is arranged in an "I" shape, and the four corners of the sealing ring are chamfered.

[0013] Preferably, the soft copper busbar group includes four copper busbars, and the copper busbars are arranged to protrude from the fixing portion.

[0014] Preferably, the protruding portion of the copper bar pointing away from the fixing portion remains soft, and the remaining portion is hardened, and the soft portion of the protruding portion of the copper bar is larger than the hardened portion of the protruding portion of the copper bar.

[0015] Preferably, the copper busbar is a T2 soft copper busbar, and a nickel sheet is attached to the surface of the copper busbar.

[0016] Preferably, the motor end connection part is located on the side of the protective shell, the number of the motor end connection parts is consistent with the number of the copper busbars, the motor end connection parts are arranged along the height direction of the protective shell, and each of the motor segment connection parts is provided with an M8 threaded hole, and the effective thread depth of the M8 threaded hole is ≥12mm.

[0017] Compared with the prior art, this application has the following beneficial effects:

[0018] 1. By using highly elastic and corrosion-resistant fluororubber sealing rings and sealants with excellent filling performance, it is ensured that the motor terminal block can effectively prevent the intrusion of external environments such as moisture and dust during long-term use. At the same time, the motor terminal block also has excellent electrical performance and mechanical strength, and can withstand air pressures up to 50KPa, thereby maintaining stable performance output under various harsh working conditions.

[0019] 2. The chamfering treatment on the top of the copper bar is used to distinguish the front and back sides of the shell, which improves the convenience and accuracy of installation.

[0020] 3. The M8 threaded hole set on the motor end connection also ensures a firm connection with the motor or other equipment, further improving the overall reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a motor terminal block in one embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the motor terminal block at another angle in one embodiment of the present invention;

[0023] Figure 3 It is a partial cross-sectional schematic diagram of a motor terminal block in one embodiment of the present invention.

[0024] In the figure, 1. plastic body; 11. fixing plate; 111. threaded hole; 112. limiting column; 113. fixing part; 114. magnetic ring; 115. sealant; 116. slot; 117. sealing ring; 12. protective shell; 121. rubber surface; 2. soft copper busbar group; 21. copper busbar; 3. motor end connection part; 31. M8 threaded hole. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1 and Figure 2 A motor terminal block includes a plastic body 1, a soft copper busbar group 2 and a motor end connection portion 3, wherein the soft copper busbar group 2 is located at one end of the plastic body 1, and the soft copper busbars 21 on the soft copper busbar group 2 are arranged in an array, and the motor end connection portion 3 is fixedly arranged on the plastic body 1.

[0027] See also Figure 1 and Figure 2The plastic body 1 includes a fixing plate 11 and a protective shell 12. The fixing plate 11 is a rectangular plate. The protective shell 12 is located below the fixing plate 11. The protective shell 12 is perpendicular to the fixing plate 11 and extends along the center line of the width direction of the fixing plate 11. The fixing plate 11 and the protective shell 12 are integrally formed. The fixing plate 11 and the protective shell 12 are made of PPA material, and the fire protection grade is UL94-HB.

[0028] See also Figure 2 and Figure 3 A plurality of threaded holes 111 are provided on both sides of the fixing plate 11 in the length direction. The threaded holes 111 are used to fix the fixing plate 11. In one embodiment, a limiting column 112 is provided on the fixing plate 11 and extends downward toward one side of the guard plate. Two limiting columns 112 are provided, and the two limiting columns 112 are respectively located on the length sides of the fixing plate 11.

[0029] The fixing plate 11 is provided with a fixing portion 113 extending upwardly on the side away from the protective shell 12. Both ends of the fixing portion 113 in the length direction are arranged in an arc shape, and the arc openings on both sides are arranged opposite to each other. Both ends of the fixing portion 113 in the width direction are arranged in a long strip shape. A plurality of magnetic rings 114 are arranged in the fixing portion 113. The magnetic rings 114 are used to be sleeved on the outer periphery of the soft copper busbar 21. The fixing portion 113 is also filled with sealant 115. The sealant 115 is filled in the internal gap of the fixing portion 113 to fix the positions of the magnetic rings 114, the fixing portion 113 and the soft copper busbar group 2.

[0030] A card slot 116 is provided below the fixing plate 11. The card slot 116 is located on the side of the fixing plate 11 pointing to the protective shell 12. The card slot 116 surrounds the protective shell 12 and is in a rounded rectangular shape. A sealing ring 117 is embedded in the card slot 116. Figure 1 and Figure 2 The cross section of the sealing ring 117 in the vertical direction is in the shape of an I, and the four corners of the sealing ring 117 are chamfered, so that the sealing ring 117 can be easily embedded in the card slot 116. The sealing ring 117 is made of fluororubber, with a hardness of Shore A70±5 and a tensile strength of ≧10MPa.

[0031] The protective shell 12 is arranged perpendicular to the fixing plate 11 , and both sides of the protective shell 12 in the thickness direction are hollowed-out surfaces 121 , and the hollowed-out shapes of the hollowed-out surfaces 121 are subject to the actual product.

[0032] See also Figure 1 and Figure 2In one embodiment, the soft copper bar group 2 includes four copper bars 21, the copper bars 21 are protruding from the fixing portion 113, the protruding portion of the copper bar 21 points to the side away from the fixing portion 113 and remains soft, and the remaining portion is hardened, and the soft portion of the protruding portion of the copper bar 21 is larger than the hardened portion of the protruding portion of the copper bar 21. Preferably, the length of the portion of the copper bar 21 protruding from the fixing portion 113 is 35.8 mm, and the soft portion of the protruding portion of the copper bar 21 is 25.8 mm. In one embodiment, the copper bar 21 is a T2 soft copper bar 21, and a 0.1 mm nickel sheet is attached to the surface of the copper bar 21.

[0033] In one embodiment, one of the long sides of the top of the copper busbar 21 is chamfered, and the chamfer is used as a fool-proof design to distinguish the front and back sides of the protective shell 12.

[0034] See also Figure 1 and Figure 2 The motor end connection part 3 is located on the side of the protective shell 12. There are four motor end connection parts 3. The four motor end connection parts 3 are arranged along the height direction of the protective shell 12. Each of the motor segment connection parts is provided with an M8 threaded hole 31. The effective thread depth of the M8 threaded hole 31 is ≥12mm.

[0035] The motor terminal block provided in the present application has not only significantly improved its sealing performance, but also enhanced its overall stability and reliability through a series of carefully designed structural improvements. In particular, in the setting of the sealing ring 117 and the sealant 115, by adopting the highly elastic and corrosion-resistant fluororubber sealing ring 117 and the sealant 115 with excellent filling performance, it is ensured that the motor terminal block can effectively prevent the intrusion of external environment such as moisture and dust during long-term use. At the same time, the motor terminal block also has excellent electrical performance and mechanical strength, and can withstand air pressures up to 50KPa, thereby maintaining stable performance output under various harsh working conditions.

[0036] In addition, the motor terminal block also pays attention to the design of details, such as distinguishing the front and back sides of the protective shell 12 by chamfering the top of the copper busbar 21, which improves the convenience and accuracy of installation. At the same time, the M8 threaded hole 31 set on the motor end connection part 3 also ensures a firm connection with the motor or other equipment, further improving the overall reliability and safety.

[0037] To sum up, the motor terminal block provided in this application has the characteristics of compact structure, good sealing, excellent electrical performance, high mechanical strength, and easy installation. It is suitable for various motor wiring scenarios that require high reliability and stability.

Claims

1. A motor terminal block, comprising a plastic body, characterized in that: It also includes a soft copper busbar group, the plastic body fixing plate and a protective shell, the fixing plate is set in a rectangular plate shape, the protective shell is located below the fixing plate, and the protective shell is set perpendicular to the fixing plate; the fixing plate is provided with a fixing portion extending upwardly pointing away from the protective shell, and a plurality of magnetic rings are arranged in the fixing portion, and the magnetic rings are used to be sleeved on the outer periphery of the soft copper busbar. The fixing portion is also filled with sealant, and the sealant is filled in the internal gap of the fixing portion, and is used to fix the positions of the magnetic rings, the fixing portion and the soft copper busbar group.

2. A motor terminal socket according to claim 1, characterized in that: The two ends of the fixing portion in the length direction are arranged in an arc shape, and the arc openings on both sides are arranged opposite to each other. The two ends of the fixing portion in the width direction are arranged in a long strip shape.

3. A motor terminal socket according to claim 2, characterized in that: A plurality of threaded holes are arranged on both sides of the fixing plate in the length direction, and the threaded holes are used for fixing the fixing plate.

4. A motor terminal socket according to claim 3, characterized in that: A limiting column is arranged on the fixing plate and extends downward toward one side of the guard plate.

5. A motor terminal socket according to claim 4, characterized in that: A card slot is arranged below the fixing plate, the card slot is located at the side of the fixing plate pointing to the protective shell, the card slot is arranged around the protective shell, the card slot is arranged in a rounded rectangular shape, and a sealing ring is embedded in the card slot.

6. A motor terminal socket according to claim 5, characterized in that: The cross section of the sealing ring in the vertical direction is arranged in an "I" shape, and the four corners of the sealing ring are chamfered.

7. A motor terminal socket according to claim 6, characterized in that: The soft copper busbar group includes four copper busbars, and the copper busbars are arranged to protrude from the fixing portion.

8. The motor terminal socket according to claim 7, characterized in that: The protruding portion of the copper bar is kept soft toward the side away from the fixing portion, and the remaining portion is hardened, and the soft portion of the protruding portion of the copper bar is larger than the hardened portion of the protruding portion of the copper bar.

9. A motor terminal socket according to claim 8, characterized in that: The copper busbar is a T2 soft copper busbar, and a nickel sheet is attached to the surface of the copper busbar.

10. The motor terminal socket according to claim 9, characterized in that: The motor end connection part is located on the side of the protective shell, the number of the motor end connection parts is consistent with the number of the copper busbars, and the motor end connection parts are arranged along the height direction of the protective shell. Each of the motor segment connection parts is provided with an M8 threaded hole, and the effective thread depth of the M8 threaded hole is ≥12mm.

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