A high-voltage motor cable lead-out fixing device

Abstract

The utility model relates to motor manufacturing technical field, and disclose a kind of high-voltage motor cable outgoing line fixing device, the base of integrally arranged on motor shell, it include: the middle part of the base is opened with the wire port that is communicated to motor interior, the cover type setting has outgoing line board on the base at wire port, the base is evenly opened with multiple groups of the connecting hole for installing outgoing line board along wire port brim, outgoing line board is installed on the base by the fastening piece of screw insertion connecting hole, and the base is provided with gasket between outgoing line board. The high-voltage motor cable outgoing line fixing device, outgoing line board is given a fixed part to the cable passing through, effectively ensure the impact resistance of motor stator cable in transportation, debugging, running process, avoid the occurrence of cable abrasion, rub and so on Problem, structural improvement effect is obvious, and quality is reliable.

Description

Technical Field

[0001] This utility model relates to the field of electric motor manufacturing technology, specifically to a high-voltage electric motor cable lead wire fixing device. Background Technology

[0002] Electric motors are a common piece of equipment in industry. During the manufacturing process of electric motors, after the cables are soldered from the inside, they need to be led out to the main junction box or neutral point junction box to facilitate power supply to the motor from the user's side.

[0003] Since the junction box is directly installed on the motor, the internal cables of the motor are usually directly connected to the main junction box when they are led out. This results in the lack of fixation at the cable lead-out point. During the operation of the motor, the motor will inevitably vibrate. Under the influence of vibration, the contact between the cable lead-out point and the motor is not firm, which may cause the cable to shake and collide with the motor output plate. This leads to cable wear, rubbing, and loosening of the connection terminals, affecting electrical safety. In severe cases, it may further cause short circuit faults and damage the motor. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a high-voltage motor cable lead wire fixing device, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a high-voltage motor cable lead-out fixing device, comprising an integrally mounted base on the motor housing, including:

[0006] The base has a wire passage opening in the middle that leads to the inside of the motor. A wire outlet plate is covered on the base at the wire passage opening. Multiple sets of mounting holes for mounting the wire outlet plate are evenly opened on the base along the edge of the wire passage opening. The wire outlet plate is mounted on the base by fasteners that are threaded into the mounting holes. A gasket is provided between the base and the wire outlet plate.

[0007] The main cable is installed inside the cable outlet and connected to the junction box through the cable outlet plate. The contact surface of the main cable through the cable outlet plate is provided with silicone rubber tape.

[0008] Preferably, the mounting hardware includes a bolt that passes through the outlet plate and the gasket and is threaded into the mounting hole. A spring washer and a washer are sequentially fitted on the bolt, and the side of the washer away from the spring washer overlaps the outlet plate.

[0009] Preferably, the end of the main cable that passes through the outlet plate is bent along the inner wall of the junction box.

[0010] Preferably, the length of the silicone rubber strip is ~mm, and the outer diameter of the silicone rubber strip is consistent with the reserved hole diameter on the output plate.

[0011] Preferably, the two ends of the silicone rubber strip protrude from the front and rear sides of the output plate, and the protrusions are of equal length.

[0012] Preferably, the output plate includes a plate body mounted on the base, and three sets of wire holes are distributed in an equilateral triangle shape in the middle of the plate body, and the main cable wrapped with silicone rubber tape passes through the inner wall of the wire holes.

[0013] Preferably, the cable outlet plate includes a plate base mounted on a base, the plate base having a positioning groove laterally formed thereon, an insert being embedded inside the positioning groove, the inner wall of the positioning groove and the edge of the insert being respectively formed with a first arc groove and a second arc groove, and the first arc groove and the second arc groove cooperating to form a circular hole for the main cable to pass through.

[0014] Preferably, the inner wall of the positioning groove has a through groove at the middle of the plate base, and the back of the insert protrudes to form a fitting platform that matches the through groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This high-voltage motor cable lead-out fixing device adds a lead-out plate to the motor base inside the junction box, requiring the cable to pass through the lead-out plate before connecting to the junction box. The lead-out plate provides a fixing point for the passing cable, effectively ensuring the impact resistance of the motor stator cable during transportation, commissioning, and operation, and avoiding problems such as cable wear and rubbing. The structural improvement effect is obvious and the quality is reliable. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention when fixing the cable;

[0018] Figure 2 This is a schematic diagram of the cable bending structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cable outlet plate of this utility model during installation;

[0020] Figure 4 This is a schematic diagram of the installation structure of the firmware of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the cable outlet plate of this utility model in one embodiment;

[0022] Figure 6 This is a schematic diagram of the structure of the output plate of the present invention in Embodiment 2;

[0023] Figure 7 This utility model Figure 6Front view diagram of the middle structure disassembly;

[0024] Figure 8 This utility model Figure 6 Schematic diagram of the disassembled structure.

[0025] In the diagram: 1. Base; 2. Outlet plate; 21. Plate body; 22. Wire hole; 201. Plate base; 202. Insert block; 203. Positioning groove; 204. Wire passage groove; 205. First arc groove; 206. Second arc groove; 207. Mounting platform; 3. Mounting fastener; 31. Bolt; 32. Spring washer; 33. Washer; 4. Main cable; 5. Silicone rubber tape; 6. Gasket; 7. Mounting hole; 8. Wire passage port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-8 A high-voltage motor cable lead wire fixing device, comprising a base 1 integrally mounted on the motor housing, including:

[0028] The base 1 has a wire passage 8 in the middle that leads to the inside of the motor. A wire outlet plate 2 is provided on the base 1 at the wire passage 8. Multiple sets of mounting holes 7 for mounting the wire outlet plate 2 are evenly provided on the base 1 along the edge of the wire passage 8. The wire outlet plate 2 is installed on the base 1 by fasteners 3 that are threaded into the mounting holes 7. A gasket 6 is provided between the base 1 and the wire outlet plate 2.

[0029] The main cable 4, which passes through the cable outlet plate 2 and is connected to the junction box, is installed inside the cable outlet 8. A silicone rubber strip 5 is installed on the contact surface of the main cable 4 that passes through the cable outlet plate 2.

[0030] That is, an additional outlet plate 2 is added at the connection between the motor and the junction box. This not only separates the tangled main cables 4, but also adds a stable part to the main cables 4 on the connection section, preventing the tangled main cables 4 from colliding with each other due to vibration during motor operation, thus improving the service life of the main cables 4.

[0031] The mounting hardware 3 includes a bolt 31 that passes through the outlet plate 2 and the gasket 6 and is threaded into the mounting hole 7. A spring washer 32 and a washer 33 are sequentially fitted on the bolt 31, and the side of the washer 33 away from the spring washer 32 overlaps on the outlet plate 2.

[0032] That is, after the main cable 4 passes through the outlet plate 2 and the connection is confirmed to be secure, the outlet plate 2 is directly installed on the base 1 using the fastener 3. The installation method is simple and quick.

[0033] The main cable 4 extends through the outlet plate 2 and is bent along the inner wall of the junction box. The bending of the main cable 4 provides a certain length margin within the junction box, thereby reducing the impact of vibration on the connection end during motor operation.

[0034] The silicone rubber strip 5 has a length of 20-30 mm, and its outer diameter is consistent with the reserved hole diameter on the outlet plate 2.

[0035] That is, by wrapping with silicone rubber tape 5, it is ensured that the part of the main cable 4 passing through the outlet plate 2 matches its reserved hole diameter, thereby ensuring the firmness of the connection between the outlet plate 2 and the main cable 4.

[0036] The silicone rubber strip 5 has two ends that protrude from the front and rear sides of the outlet plate 2, and the protrusion lengths are equal. After the silicone rubber strip 5 is inserted into the outlet plate 2, a certain amount of slack is left on both sides of the outlet plate 2 so that the vibration of the motor will not cause the silicone rubber strip 5 to shake off the outlet plate 2.

[0037] Example 1, as Figure 5 As shown, the output plate 2 includes a plate body 21 mounted on the base 1. The middle part of the plate body 21 has three sets of wire holes 22 distributed in an equilateral triangle shape, and the main cable 4 wrapped with silicone rubber tape 5 passes through the inner wall of the wire hole 22.

[0038] Based on the design objectives, a basic model embodiment 1 was designed to solve the problem of loose connection at the main cable 4 in most motors, ensuring that the main cable 4 can be fully fixed and evenly spaced when it is led out, thus providing protection for equipment safety and the life safety of maintenance personnel.

[0039] Example 2, as Figure 6 As shown, the cable outlet plate 2 includes a plate base 201 mounted on the base 1. A positioning groove 203 is horizontally opened on the plate base 201. An insert 202 is embedded inside the positioning groove 203. A first arc groove 205 and a second arc groove 206 are respectively opened on the inner wall of the positioning groove 203 and the edge of the insert 202. The first arc groove 205 and the second arc groove 206 cooperate to form a circular hole for the main cable 4 to pass through.

[0040] The inner wall of the positioning groove 203 is provided with a wire-passing groove 204 at the middle position of the plate base 201, and the back of the insert 202 protrudes to form a fitting platform 207 that fits the wire-passing groove 204.

[0041] That is, in response to the situation in Embodiment 1, Embodiment 2 is designed to optimize the situation so that the plate base 201 and the insert 202 cooperate to engage the silicone rubber strip 5 on the main cable 4, eliminating the need for perforation fixation. This reduces the strict requirements on the outer diameter of the silicone rubber strip 5 when it passes through the outlet plate 2. At the same time, the outer diameter thickness of the silicone rubber strip 5 protruding from both sides of the outlet plate 2 can be appropriately increased to further ensure the stability of the connection between the main cable 4 and the outlet plate 2.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage motor cable lead-out fixing device, comprising a base (1) integrally mounted on the motor housing, characterized in that, include: The base (1) has a wire passage (8) in the middle that leads to the inside of the motor. A wire outlet plate (2) is provided on the base (1) at the wire passage (8). Multiple sets of mounting holes (7) for mounting the wire outlet plate (2) are evenly provided on the base (1) along the edge of the wire passage (8). The wire outlet plate (2) is installed on the base (1) by fasteners (3) that are threaded into the mounting holes (7). A gasket (6) is provided between the base (1) and the wire outlet plate (2). The cable outlet (8) is provided with a main cable (4) that passes through the cable outlet plate (2) and is connected to the junction box. The main cable (4) has a silicone rubber strip (5) on the contact surface of the cable outlet plate (2).

2. The high-voltage motor cable lead-out fixing device according to claim 1, characterized in that, The mounting hardware (3) includes a bolt (31) that passes through the outlet plate (2) and the gasket (6) and is threaded into the mounting hole (7). A spring washer (32) and a washer (33) are sequentially fitted on the bolt (31), and the side of the washer (33) away from the spring washer (32) overlaps on the outlet plate (2).

3. The high-voltage motor cable lead fixing device according to claim 1, characterized in that, The main cable (4) passes through one end of the outlet plate (2) and is arranged in a bent shape along the inner wall of the junction box.

4. The high-voltage motor cable lead-out fixing device according to claim 1, characterized in that, The length of the silicone rubber strip (5) is 20-30 mm, and the outer diameter of the silicone rubber strip (5) is consistent with the reserved hole diameter on the output plate (2).

5. A high-voltage motor cable lead-out fixing device according to claim 1, characterized in that, The two ends of the silicone rubber strip (5) protrude from the front and rear sides of the wire plate (2) respectively, and the protrusions are of equal length.

6. A high-voltage motor cable lead fixing device according to claim 1, characterized in that, The cable outlet plate (2) includes a plate body (21) mounted on the base (1). The plate body (21) has three sets of wire holes (22) distributed in an equilateral triangle shape in the middle. The main cable (4) wrapped by the silicone rubber tape (5) passes through the inner wall of the wire hole (22).

7. A high-voltage motor cable lead-out fixing device according to claim 1, characterized in that, The cable outlet plate (2) includes a plate base (201) mounted on the base (1). A positioning groove (203) is provided horizontally on the plate base (201). An insert (202) is embedded inside the positioning groove (203). A first arc groove (205) and a second arc groove (206) are respectively provided on the inner wall of the positioning groove (203) and the edge of the insert (202). The first arc groove (205) and the second arc groove (206) cooperate to form a circular hole for the main cable (4) to pass through.

8. A high-voltage motor cable lead fixing device according to claim 7, characterized in that, The inner wall of the positioning groove (203) is provided with a through groove (204) at the middle position of the plate base (201), and the back of the insert (202) protrudes to form a fitting platform (207) that fits with the through groove (204).

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