Integrated motor wiring device

By using integrated injection molding and fused inlay to fix metal parts, the problems of loose splicing, weak protection, and easy damage to cables in traditional motor wiring devices are solved, achieving structural stability, improved protection performance, and reduced cost, thus meeting the complex operating conditions of high-power motors.

CN121461671APending Publication Date: 2026-02-03WUXI XINJIE ELECTRICAL
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202512008195.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-02-03

AI Technical Summary

Technical Problem

Traditional motor wiring devices suffer from problems such as loose connections, weak protection, easily damaged cables, messy wiring, poor compatibility, inconvenient disassembly and assembly, and high production costs.

Method used

It adopts an integrated injection molding design, combined with fused embedded fixed metal parts, and features a partitioned terminal block and waist-shaped conductive sheet. It has a multi-layered sealing protection structure, a modular layout, and provides U, V, W, L, N, and PE grounding markings.

Benefits of technology

It improves the structural stability and operational stability of the motor wiring device, enhances its waterproof and dustproof performance, reduces production costs, and increases the convenience and adaptability of wiring to meet the needs of complex working conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121461671A_ABST
    Figure CN121461671A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of motor outlet box structures, in particular to an integrated motor wiring device which comprises an external assembly and an internal assembly, the external assembly comprises an outlet box cover, an outlet box, a waterproof connector and a dustproof plug, and the internal assembly is divided into a wiring part, a wire part and a fixed part. The outlet box is integrally formed by injection molding of a thermosetting material, an internal core structure is synchronously formed, a screw and a copper nut are fixed in a fusion inlaying mode, a wiring part is provided with a Z-shaped step type body wiring table, a double-fan wiring table and a Z-shaped kidney-shaped hole conducting strip, and a body and fans are provided with grounding tables with through holes. The wire part comprises an IL-shaped wire groove and a plate-shaped wire separating wall with reinforcing ribs, the wire outlet box is provided with multiple sealing protection structures, the waterproof connector can be disassembled and switched to support front and back bidirectional wire outlet, the device is stable in structure, excellent in protection performance, wide in adaptability, convenient to assemble and low in cost, related pain points of a traditional device can be effectively solved, and the service life of the device is prolonged. The method is suitable for various motors and complex industrial conditions.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of motor terminal box structure technology, and in particular to an integrated motor wiring device. Background Technology

[0002] In the fields of industrial automation and consumer electronics, the reliability, protection, and ease of assembly of motor wiring devices are crucial for the stable operation of equipment. Traditional motor wiring devices have many significant drawbacks and fail to meet actual usage requirements.

[0003] Traditional motor wiring devices are mostly modular, with the junction box, terminal blocks, and cable sheaths connected or spliced ​​together using screws. This splicing structure not only leads to messy cable distribution but also results in high costs. Furthermore, there is a lack of dedicated wiring devices developed for high-power motors on the market. In terms of protection, traditional devices have weak seals, with waterproof ratings often below IP54. The cable entry holes lack protective structures, making cables highly susceptible to wear and even cuts. The dustproof design at the cable inlet is inadequate, allowing external dust to easily penetrate the device and the motor. Regarding wiring layout, traditional devices have chaotic wiring, mixing strong and weak currents, which not only easily leads to wiring errors but also generates signal crosstalk. The planar wiring also results in numerous cable bends, further exacerbating cable damage. In terms of manufacturing and maintenance, traditional devices require multiple sets of molds to produce parts, resulting in high mold costs, long repair times, and low maintenance efficiency.

[0004] For example, the patent with publication number CN219918590U discloses a motor outlet box. This outlet box is only used as a protective and support component. It requires the installation of multiple parts during use. The internal and external components are spliced ​​multiple times, which can easily lead to cable shaking, loose terminals, and high risk of metal parts falling off due to gaps. Its stability is difficult to guarantee.

[0005] For example, patent CN217904175U discloses a junction box and a motor. Although the overall structure of the device is relatively simple, it does not separate the terminal blocks for the user end and the motor end, making it inconvenient for users to disassemble and install. Furthermore, the wiring hole is not protected by a guard plate, which can easily cause small parts such as screws and cold-pressed terminals to slip into the motor and affect its normal operation. At the same time, it lacks clear markings and convenient maintenance design, which greatly reduces its applicability and performance.

[0006] Therefore, there is an urgent need for a safe, simple, and integrated wiring device to solve the problems of loose splicing, weak protection, messy wiring, poor adaptability, and inconvenient disassembly and assembly of traditional devices, so as to meet the needs of complex motor operating conditions. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated motor wiring device to solve the technical problems of traditional motor wiring devices, such as easy loosening of splices, easy detachment of metal parts, weak protective sealing, easy damage of cables, messy wiring, poor adaptability, inconvenient disassembly and maintenance, and high production costs.

[0008] The above objectives are achieved through the following technical solutions: An integrated motor wiring device includes external and internal components. The external components include a terminal box cover, a terminal box, a waterproof connector, and a dust plug. The internal components include a wiring section, a wire section, and a fixing section. The terminal box is manufactured using an injection molding process, and is formed synchronously with its internal components, including a terminal block, wire groove, wire partition, wire sleeve, wire hole guard, positioning boss, and reinforcing boss. Screws and copper nuts are fixed to corresponding positions on the terminal box by fusion embedding. The wiring section includes a terminal block, conductive plate, fixing stud, grounding screw, and cold-pressed terminal. The conductive plate connects the user terminal to the motor body terminal. The wire section includes a wire partition and a wire groove. The fixing section is connected to the terminal box. The waterproof connector is selectively installed at the inlet positions at both ends of the terminal box. The inlet positions without the waterproof connector are sealed by the dust plug. The terminal box has a sealing and protective structure.

[0009] Furthermore, the cable sleeve is cylindrical and stepped with a double-cylinder hollow structure. The cable sleeve is located at the bottom of the cable outlet box, and an O-ring is fitted on the small round platform at the junction of the large and small cylinders.

[0010] Furthermore, the wire hole guard is an annular boss surrounding the wire hole, and a T-shaped sealing gasket is fitted on the top of the wire hole guard. The sealing gasket is made of rubber and has an extended structure.

[0011] Furthermore, the terminal block includes a main terminal block, a fan terminal block A, and a fan terminal block B. The main terminal block has a stepped "Z" shaped structure. The fixing stud A of the user terminal is located on the upper part of the main terminal block, and the fixing stud B of the motor terminal is located on the lower part of the main terminal block. The conductive sheet has a "Z" shaped structure with waist-shaped holes at both ends, and a gap is left between the conductive sheet and the end of the main terminal block.

[0012] Furthermore, the conductor groove is an overall “IL” shaped structure and is symmetrically arranged on the left and right sides of the wire hole; the wire partition wall includes wire partition wall A and wire partition wall B, the wire partition wall is a plate-shaped structure with reinforcing ribs, and its column end is a widened structure.

[0013] Furthermore, the wiring section also includes a body grounding platform and a fan grounding platform. Both the body grounding platform and the fan grounding platform have through holes. The grounding screw, in conjunction with a flat spring washer, passes through the cold-pressed terminal and is tightened in the threaded hole inside the through hole. The cold-pressed terminal, the outlet box, and the motor body are fixed and electrically connected by the grounding screw.

[0014] Furthermore, the outlet box is provided with a capacitor mounting platform, which has a triangular support structure. A copper nut is embedded in the support structure to form a threaded hole, and a wiring screw is connected in the threaded hole to fix the starting capacitor.

[0015] Furthermore, the waterproof connector is connected to the outlet box via a screw-locking mechanism, and the waterproof connector can be disassembled from one end of the outlet box and reinstalled at the other end.

[0016] Furthermore, the outlet box is made of thermosetting material.

[0017] Furthermore, the outlet box is equipped with U, V, W, L, N, and PE grounding markings; the wiring screws and electrical connection screws B on the outlet platform are fitted with screw dust caps.

[0018] The integrated motor wiring device provided by this invention achieves structural stability through integrated injection molding and fused embedding of metal parts; facilitates assembly and wide adaptability through partitioned wiring platforms and oblong conductive plates; provides waterproof and dustproof protection through a multi-layered sealing structure; and reduces costs and improves maintenance efficiency through modular design and optimized layout. Compared with existing technologies, the specific advantages are as follows: 1. The outlet box of the present invention adopts a thermosetting material injection molding one-piece design, with the internal core structure being formed simultaneously. The metal parts are fixed by fusion embedding, replacing the traditional screw splicing, avoiding problems such as gap loosening and metal parts falling off caused by splicing multiple parts. The overall rigidity and operational stability of the device are greatly improved, and it can adapt to the vibration conditions of high-power motors.

[0019] 2. The main body terminal block adopts a stepped "Z" shaped structure, the conductive sheet is "Z" shaped and has waist-shaped holes at both ends. Combined with the independently set dual fan terminal block, it not only clearly distinguishes the wiring positions of the user end and the motor end, but also allows for installation without distinguishing the positive and negative sides of the conductive sheet. At the same time, it is compatible with the wiring requirements of different voltage levels and two-phase and three-phase electric fans, significantly improving the ease of assembly.

[0020] 3. The sealed protection structure consists of a cable sleeve, O-ring, cable hole guard, T-shaped sealing gasket, etc. The multiple protection designs effectively improve the waterproof and dustproof performance and avoid the risks of cable damage from cable holes and intrusion of debris. The cable barrier adopts a plate-like structure with reinforcing ribs and widened column ends to ensure sufficient electrical safety distance. It can be adapted to complex industrial conditions such as humid and dusty environments, greatly expanding its application range.

[0021] 4. Integrated injection molding reduces the investment in multiple molds, thermosetting materials replace traditional sheet metal and cast aluminum materials, there are fewer moving parts and a modular design, and the groove at the bottom of the junction box ensures uniform wall thickness of plastic parts, reducing the injection molding defect rate, and the overall production cost is significantly lower than that of existing equipment.

[0022] 5. Both the main body and the fan are equipped with independent grounding platforms. Grounding screws are used to fix the cold-pressed terminals, the outlet box and the motor body and ensure conductive connection. The grounding is reliable and solves the problem of poor contact in traditional grounding structures. The waterproof connector can be flexibly disassembled and installed in different positions. It supports bidirectional cable outgoing from the front and rear and adapts to the cable entry requirements of different installation scenarios. Its compatibility is better than existing unidirectional cable entry and fixed structure devices. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the integrated motor wiring device of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the integrated motor wiring device described in this invention; Figure 3 This is a partial enlarged view of the interior of the integrated motor wiring device described in this invention; Figure 4 This is a schematic diagram of the wiring inner cross-section of the integrated motor wiring device of the present invention; Figure 5 This is a schematic diagram of the internal structure of the integrated motor wiring device described in this invention; Figure 6 This is a schematic diagram of the outlet box structure in the integrated motor wiring device of the present invention; Figure 7 This is a schematic diagram of the sealing gasket structure in the integrated motor wiring device of the present invention; Figure 8 This is a schematic diagram of the conductive sheet structure in the integrated motor wiring device of the present invention.

[0024] Illustration markings: 1-Outlet box cover; 2-Outlet box; 201-Body terminal block; 202-Fan terminal block A; 203-Fan terminal block B; 204-Body grounding platform; 205-Fan grounding platform; 206-Capacitor mounting platform; 207-Wire hole; 208-Mounting hole; 209-Wire channel; 210-Wire divider A; 211-Wire divider B; 212-O-ring groove; 213-Wire hole cover; 214-O-ring; 215-Groove; 216-Wire sheath; 3-Waterproof connector; 301-Waterproof connector A; 302-Waterproof Connector B; 4-Socket; 501-Fixing Screw A; 502-Nut A; 601-Fixing Stud A; 602-Fixing Stud B; 7-Conductive Plate; 8-Grounding Screw A; 9-Dust Plug; 901-Dust Plug A; 902-Dust Plug B; 903-Dust Plug C; 904-Dust Plug D; 10-Sealing Gasket; 11-Starting Capacitor; 12-Wiring Screw; 13-Connecting Screw B; 14-Fixing Screw B; 15-Cold Press Terminal; 1601-User Input Terminal; 1602-Motor Body Terminal; 17-Screw Dust Cap. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1-3 As shown, this solution provides an integrated motor wiring device, including external components and internal components. The external components include a terminal box cover 1, a terminal box 2, a waterproof connector 3, and a dust plug 9. The internal components are divided into a wiring part, a wire part, and a fixing part. All parts work together to achieve reliable power supply and safety protection for components such as the motor body, fan, and capacitor.

[0027] The outlet box 2 is the core load-bearing component of the device. It is made of thermosetting material using an injection molding process. Its internal components, including the main body wiring platform 201, fan wiring platform A 202, fan wiring platform B 203, wire channel 209, wire partition wall A 210, wire partition wall B 211, wire sheath 216, wire hole guard 213, positioning boss, and reinforcing boss, are formed simultaneously, eliminating the need for subsequent splicing and assembly, resulting in a compact and rational structure. Simultaneously, screws and copper nuts are fixed to corresponding positions in the outlet box 2 via a fusion-embedding method. For example, the pre-embedded copper nuts in the mounting holes 208 employ a triangular recessed structure to avoid obstruction, effectively reducing the overall size of the device.

[0028] like Figure 4 and Figure 5As shown, the wiring section is a key structure for achieving circuit connection, including a main body wiring platform 201, a fan wiring platform A 202, a fan wiring platform B 203, a conductive plate 7, a fixing stud A 601, a fixing stud B 602, a grounding screw 8, a cold-pressed terminal 15, a main body grounding platform 204, a fan grounding platform 205, a capacitor mounting platform 206, a wiring screw 12, and a power connection screw B 13. The conductive plate 7 connects the user input terminal to the wiring terminal of the motor body, which can adapt to different types of wiring requirements.

[0029] The main body terminal block 201 has a stepped "Z" shaped structure. The user terminal fixing stud A 601 is located on the upper part of the main body terminal block 201, and the motor main body terminal fixing stud B 602 is located on the lower part of the main body terminal block 201. The conductive sheet 7 has a "Z" shaped structure, as shown below. Figure 8 As shown, both ends of the conductive plate 7 are provided with oblong holes. The conductive plate 7 is placed on the step position of the main body terminal block 201. The oblong holes at both ends are aligned with the fixing studs A 601 and B 602 respectively. It can be installed without distinguishing between the positive and negative directions. There is a gap between the conductive plate 7 and the end of the main body terminal block 201. This gap meets the creepage distance requirements of international standards.

[0030] The fan terminal block includes fan terminal block A 202 and fan terminal block B 203, both of which are located on one side of the main terminal block 201. Both fan terminal block A 202 and fan terminal block B 203 are provided with wiring screw mounting holes to accommodate the wiring and fixing requirements of different types of fans.

[0031] Both the main body grounding platform 204 and the fan grounding platform 205 have through holes with threads inside. The grounding screw 8, together with the flat spring washer, passes through the cold-pressed terminal 15 and is tightened in the threaded hole inside the through hole. The cold-pressed terminal 15, the outlet box 2 and the motor body are fixed and electrically connected by the grounding screw 8, forming a "one screw for three uses" grounding structure.

[0032] like Figure 6 As shown, the capacitor mounting platform 206 is provided with a triangular support structure. A copper nut is embedded in the support structure to form a threaded hole. A wiring screw 12 is connected in the threaded hole. The wiring screw 12 is used to fix the starting capacitor 11. The triangular support structure plays a positioning role for the starting capacitor 11.

[0033] like Figure 6As shown, the conductor section is used to achieve orderly cable arrangement, including conductor groove 209, wire divider A210, and wire divider B211. Both the wire divider and conductor groove 209 are integrally formed with the outlet box 2. The conductor groove 209 has an overall "IL" shape structure and is symmetrically arranged on the left and right sides of the cable hole 207. The cable is held by two columns, which can individually limit the movement of low-voltage wires and signal wires. Wire divider A210 and wire divider B211 are plate-shaped structures with reinforcing ribs, which are orderly separated between each pole. The wire divider on the terminal block adopts a "Z" shape structure. The plate-shaped wire divider is designed with thickened reinforcing ribs and enlarged rounded corners at both ends, and the ends of its columns are widened.

[0034] The fixing part is used to ensure that the output device is stably installed on the target equipment. It mainly includes mounting hole 208, fixing screw A501, nut A502 and fixing screw B14. The pre-embedded copper nut in the mounting hole 208 works with the fixing screw to reliably fix the device to the motor or other equipment. The fixing part is connected to the output box 2 as a whole.

[0035] like Figure 2 and Figure 7 As shown, the outlet box 2 is provided with a sealing and protective structure, specifically including: a cable sleeve 216 is cylindrical and stepped with a double-cylinder hollow structure, located at the bottom of the outlet box 2, with an O-ring 214 mounted on the small circular platform at the junction of the large and small cylinders; a wire hole guard 213 is an annular boss surrounding the wire hole 207, with a T-shaped sealing gasket 10 mounted on top of the wire hole guard 213, the sealing gasket 10 being made of rubber and having an extended structure, and being fixed to the annular boss opposite the cable sleeve 216 by a snap-fit ​​method; an O-ring groove 212 is provided on the top of the outlet box 2, with an O-ring 214 mounted inside the O-ring groove 212, and when the outlet box cover 1 is fastened to the outlet box 2 by fixing screws B14, the O-ring 214 is pressed to form a seal.

[0036] The waterproof connector 3 is connected to the outlet box 2 by a screw-locking method. It can be installed at the inlet positions at the front and rear ends of the outlet box 2. The inlet positions without the waterproof connector 3 are sealed by the dust plug 9. The waterproof connector 3 can be removed from one end of the outlet box 2 and reinstalled at the other end to switch the direction of the inlet and outlet.

[0037] The outlet box 2 is equipped with U, V, W, L, N, PE grounding markings inside to indicate different wiring positions; the bottom of the main body wiring platform 201 is provided with a groove 215 to ensure uniform wall thickness of the plastic parts; the outlet box cover 1 is designed as a flat plate structure, and the wiring screws 12 and electrical connection screws B 13 on the outlet platform are equipped with screw dust caps 17.

[0038] like Figures 1 to 8As shown in the figure, as a specific embodiment of this solution, the integrated motor wiring device disclosed in this embodiment includes external components and internal components. The external components include a terminal box cover 1, a terminal box 2, a waterproof connector 3, a dust plug 9, and a socket 4. The internal components include fixing studs A 601 and B 602, a conductive sheet 7, a grounding screw A 8, a sealing gasket 10, a starting capacitor 11, a wiring screw 12, a power connection screw B 13, a fixing screw B14, a cold-pressed terminal 15, and a screw dust cap 17. The waterproof connector 3 includes waterproof connectors A 301 and B 302, which are the inlet positions of the main body and the fan, respectively. The dust plug 9 includes dust plugs A 901, B 902, C 903, and D 904. The user input cable is 1601, and the motor body cable is 1602. The injection-molded integrated terminal box 2 is equipped with a main body wiring platform 201 and a fan wiring platform A. 202. Fan terminal block B; 203. Main body grounding platform; 204. Fan grounding platform; 205. Capacitor mounting platform; 206. Wiring hole; 207. Mounting hole; 208. Wire groove; 209. Wire isolation wall A; 210. Wire isolation wall B; 211. O-ring groove; 212. Wiring hole guard; 213. O-ring; 214. Groove; 215. Wire protection sleeve; 216.

[0039] This device adopts a modular assembly method, and the specific assembly process is as follows: 1. Main Body Forming of the Outlet Box: The outlet box 2 is made of thermosetting material and manufactured through a one-piece injection molding process. Its internal components, including the main body terminal block 201, fan terminal block A 202, fan terminal block B 203, wire channel 209, wire partition wall A 210, wire partition wall B 211, wire sheath 216, wire hole guard 213, positioning boss, and reinforcing boss, are formed simultaneously to ensure structural integrity and connection reliability. Simultaneously, screws and copper nuts are fixed to corresponding positions in the outlet box 2 using a fusion-embedding method. For example, the pre-embedded copper nut in the mounting hole 208 adopts a triangular recessed structure to avoid obstruction, effectively reducing the overall volume. The cable sleeve 216 at the bottom of the cable outlet box 2 is cylindrical and stepped with a double-cylinder hollow structure. An O-ring 214 is pre-installed on the small round platform at the junction of the large and small cylinders. The cable hole guard 213 is an annular boss surrounding the cable hole 207. A T-shaped sealing gasket 10 is installed on top of it. The sealing gasket 10 is made of rubber and has an extended structure. It is fixed to the annular boss opposite the cable sleeve 216 by a snap-fit ​​method, thus completing the assembly of the basic protective structure.

[0040] 2. Grounding Structure Assembly: Clean the through holes at the main body grounding platform 204 and the fan grounding platform 205 to ensure that there are no impurities inside the holes that would affect conductivity and fixation. Insert the grounding screw A8, along with the flat spring washer, through the cold-pressed terminal 15 of the cable and tighten it sequentially into the threaded holes of the main body grounding platform 204 and the fan grounding platform 205. This achieves fixation and conductive connection between the cold-pressed terminal 15, the terminal box 2, and the motor body, completing the "one screw, three uses" grounding assembly and ensuring grounding reliability.

[0041] 3. Start-up capacitor installation: Place the start-up capacitor 11 on the triangular support structure of the capacitor mounting platform 206. The support structure has a copper nut embedded inside and forms a threaded hole. Use a wiring screw 12 to pass through the mounting hole of the start-up capacitor 11 and tighten it into the threaded hole. The triangular structure is used to position and stably support the start-up capacitor 11, preventing the start-up capacitor 11 from loosening or shifting.

[0042] 4. Assembly of conductive sheet and terminal block: Place the "Z"-shaped conductive sheet 7 on the stepped position of the terminal block 201. Align the oblong holes at both ends of the conductive sheet 7 with the upper fixing stud A 601 and the lower fixing stud B 602 of the terminal block 201, respectively. No need to distinguish between the positive and negative directions for installation, improving assembly efficiency. Ensure that there is a gap between the conductive sheet 7 and the end of the terminal block 201 that meets the international standard creepage distance to prevent electric arcing between adjacent conductive sheets 7 and ensure electrical safety.

[0043] 5. Assembly of external protective components: Embed the O-ring 214 into the O-ring groove 212 on the top of the outlet box 2, and fasten the outlet box cover 1 to the outlet box 2 with the fixing screw B14. Press the O-ring 214 to achieve overall sealing protection of the device. According to the actual inlet requirements, select the front or rear end to install waterproof connector A 301 or waterproof connector B 302. The waterproof connector 3 is connected to the outlet box 2 by a screw locking method. Unused inlet ends are blocked by the corresponding dust plugs A 901, B 902, C 903 or D 904 to prevent external impurities from entering. The socket 4 is fixedly installed in the preset external mounting position of the outlet box 2 to complete the assembly of external components.

[0044] 6. Cable Wiring Operation: For the motor body end 1602 cable (e.g., UVW), enter the device through the through hole 207 below the outlet box 2. The cold-pressed terminal 15 at its front end passes sequentially through the fixing stud B 602 at the bottom of the main body terminal block 201. Use nut A502 and a flat spring washer to press the cold-pressed terminal 15 firmly under the conductive sheet 7, ensuring a secure connection. For the user input end 1601 cable (e.g., UVW), enter the device through waterproof connector A 301 or waterproof connector B 302. Its cold-pressed terminal 15 passes sequentially through the fixing stud A 601 at the top of the main body terminal block 201. Use nut A 502 to press it firmly onto the conductive sheet 7, achieving reliable connection between the motor body and the user cable through the conductive sheet 7. For the fan cable, select the wiring position according to the type: When using a two-pole L / N power supply, tighten the cable cold-pressed terminal 15 onto the fan terminal block A 202; when using a three-phase fan, activate the wiring position on the fan terminal block B 203, and connect it through the connecting screw B. 13 Secure the cold-pressed terminal 15. The fan grounding cable is reliably grounded through the fan grounding platform 205. Low-voltage wires, such as fan wires, and signal wires, such as encoder communication wires, are led out through the wire hole 207 and embedded in the “IL”-shaped wire grooves 209 on both sides of the wire hole 207. The wire grooves 209 are used to securely fix the cables. All kinds of cables are separated within an effective safe distance by the partition wall A 210 and the partition wall B 211 to avoid crosstalk.

[0045] 7. Protection of idle ports: When the device is not in operation, the dust cap 17 is installed on the exposed screws such as the wiring screw 12 and the electrical connection screw B 13 on the output platform to prevent external contamination and ensure the cleanliness of the device.

[0046] The direction of the incoming and outgoing lines of this device can be flexibly adjusted. When it is necessary to switch the incoming line direction, remove the dust plug (such as dust plug A 901) from the end where the line is not currently exiting, unscrew the installed waterproof connector (such as waterproof connector A 301) counterclockwise using the screw lock, remove it from one end of the outlet box 2, reinstall it on the other end, and plug the original incoming line end with the corresponding dust plug to complete the direction switch. The operation is convenient. The ends of the columns of the partition wall A 210 and partition wall B 211 are widened to avoid material shortage defects caused by excessively thin walls due to the draft angle. At the same time, the groove 215 at the bottom of the terminal block ensures that the wall thickness of the plastic parts is uniform, and improves the rigidity of the upper fixing studs A 601 and B 602, ensuring the long-term stable operation of the device.

[0047] In this embodiment, the conductive sheet 7 adopts a "Z" shaped structure, the wire groove 209 adopts an "IL" shaped structure, and the partition wall adopts a plate-like structure with reinforcing ribs. These designs are all to adapt to the characteristics of the injection molding process and actual usage requirements. Their specific dimensions can be adjusted according to the motor power specifications, cable type, and number of poles, and all of these are within the protection scope of this invention.

[0048] The above description is merely illustrative of the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated motor wiring device, characterized in that, It includes external components and internal components. The external components include a junction box cover (1), a junction box (2), a waterproof connector (3), and a dust plug (9). The internal components include a wiring part, a wire part, and a fixing part. The outlet box (2) is formed synchronously with its internal wiring platform, wire groove (209), wire partition wall, wire sleeve (216), wire hole guard (213), positioning boss and reinforcing boss; The wiring section includes a terminal block, a conductive sheet (7), a fixing stud, a grounding screw (8), and a cold-pressed terminal (15). The conductive sheet (7) connects the user terminal block to the motor body terminal block. The conductor section includes a wire partition wall and a conductor groove (209); The fixed part is connected to the outlet box (2). The waterproof connector (3) is installed at the inlet positions at the front and rear ends of the outlet box (2). The inlet positions where the waterproof connector (3) is not installed are sealed by the dust plug (9). The outlet box (2) is provided with a sealing and protective structure.

2. The integrated motor wiring device according to claim 1, characterized in that, The cable sleeve (216) is cylindrical and stepped and has a double-cylinder hollow structure. The cable sleeve (216) is located at the bottom of the cable outlet box (2), and an O-ring (214) is installed on the small round platform at the junction of the large and small cylinders.

3. The integrated motor wiring device according to claim 1 or 2, characterized in that, The wire hole guard (213) is an annular boss and is arranged around the wire hole (207). A T-shaped sealing gasket (10) is installed on the top of the wire hole guard (213). The sealing gasket (10) is made of rubber and has an extended structure.

4. The integrated motor wiring device according to claim 1, characterized in that, The terminal block includes a main terminal block (201), a fan terminal block A (202), and a fan terminal block B (203). The main terminal block (201) has a stepped "Z" shaped structure. The fixing stud A (601) of the user terminal is located on the upper part of the main terminal block (201), and the fixing stud B (602) of the motor terminal is located on the lower part of the main terminal block (201). The conductive sheet (7) has a "Z" shaped structure, and both ends of it are provided with waist-shaped holes. There is a gap between the conductive sheet (7) and the end of the main terminal block (201).

5. The integrated motor wiring device according to claim 1, characterized in that, The conductor groove (209) is an "IL" shaped structure and is symmetrically arranged on the left and right sides of the wire hole (207); the wire partition wall includes wire partition wall A (210) and wire partition wall B (211). The wire partition wall is a plate-shaped structure with reinforcing ribs and its column ends are widened.

6. The integrated motor wiring device according to claim 1, characterized in that, The wiring section also includes a body grounding platform (204) and a fan grounding platform (205). Both the body grounding platform (204) and the fan grounding platform (205) have through holes. The grounding screw (8) and the flat spring washer pass through the cold-pressed terminal (15) and are tightened in the threaded hole in the through hole. The cold-pressed terminal (15), the outlet box (2) and the motor body are fixed and electrically connected by the grounding screw (8).

7. The integrated motor wiring device according to claim 1, characterized in that, The outlet box (2) is provided with a capacitor mounting platform (206) inside. The capacitor mounting platform (206) is provided with a triangular support structure. A copper nut is embedded in the support structure and a threaded hole is formed. A wiring screw (12) is connected in the threaded hole. The wiring screw (12) is used to fix the starting capacitor (11).

8. The integrated motor wiring device according to claim 1, characterized in that, The waterproof connector (3) is connected to the outlet box (2) by a screw locking method. The waterproof connector (3) can be disassembled from one end of the outlet box (2) and reinstalled at the other end.

9. The integrated motor wiring device according to claim 1, characterized in that, The outlet box (2) is made of thermosetting material.

10. The integrated motor wiring device according to claim 1, characterized in that, The outlet box (2) is equipped with U, V, W, L, N, PE grounding markings inside.

Citation Information

Patent Citations

  • Junction box and motor

    CN217904175U

  • Motor outlet box

    CN219918590U