Connecting structure of motor grounding wire

Abstract

The utility model discloses a connecting structure of a motor grounding wire, which comprises a shell, a grounding connecting sheet is formed on the shell, a grounding wire assembly is inserted on the grounding connecting sheet, the grounding wire assembly comprises an inserting sheet and a grounding wire connected with the inserting sheet, and a connecting groove for inserting the grounding connecting sheet is formed on the inserting sheet. The shell comprises an open mounting main body and a cover plate covering the mounting main body, and the grounding connecting sheet is integrally formed on the cover plate.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a connection structure for a motor grounding wire. Background Technology

[0002] The core function of the motor grounding wire is safety protection. When the internal insulation of the motor is damaged, causing the metal casing to become electrified, the grounding wire can provide a low-resistance path for the leakage current, allowing it to be quickly conducted to the ground, thus preventing electric shock to the human body. In addition, the huge leakage current will trigger the leakage current protection device or air switch to cut off the power instantly, not only ensuring the safety of personnel, but also preventing further damage to equipment or causing a fire. Grounding can also effectively release static electricity generated during operation and eliminate potential spark risks. The grounding wire is an indispensable lifeline for the motor and a reliable connection must be ensured.

[0003] Existing grounding wires are generally connected by riveting or screws, which makes installation inconvenient. For example, an anti-static motor housing disclosed in CN208638204 U includes a housing body, a front end cover embedded in the left side of the inner cavity of the housing body, a rear end cover embedded in the right side of the inner cavity of the housing body, bearing seats embedded in the inner cavities of the front end cover and the rear end cover, a rotating rod movably connected to the inner cavity of the bearing seat, a stator assembly fixedly connected to the top and bottom of the inner cavity of the housing body, sealing gaskets embedded on both sides of the bearing seat, and a threaded sleeve welded to the bottom of the right side of the housing body.

[0004] However, in existing technologies, grounding wires are generally connected by riveting or screws, which makes installation inconvenient and can lead to poor contact due to loose screws or corrosion over time. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a connection structure for a motor grounding wire.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A connection structure for a motor grounding wire includes a housing, on which a grounding connection piece is formed, and a grounding wire assembly is inserted into the grounding connection piece. The grounding wire assembly includes a plug-in piece and a grounding wire connected to the plug-in piece. The plug-in piece has a connection groove for the grounding connection piece to be inserted.

[0008] The housing includes an open mounting body and a cover plate covering the mounting body, and the grounding connection piece is integrally formed on the cover plate.

[0009] Preferably, the plug-in piece comprises a first connecting part connected to the ground wire, and a second connecting part connected to the ground connecting piece, the second connecting part is provided with an abutting protrusion and a pressing block, the connecting groove is formed between the abutting protrusion and the pressing block, and the abutting protrusion is provided with a positioning protrusion, the ground connecting piece is provided with a positioning hole for the positioning protrusion, through the above improvement, in the process of plugging the ground connecting piece and the plug-in piece, the ground connecting piece will be inserted into the connecting groove along the abutting protrusion, and be fixed between the abutting protrusion and the pressing block, until the positioning protrusion on the abutting protrusion is inserted into the positioning hole, to realize the connection of the ground connecting piece and the plug-in piece.

[0010] Preferably, the thickness of the abutting protrusion gradually increases along the insertion direction, through the above improvement, the reliability of the connection between the ground connecting piece and the plug-in piece is increased.

[0011] Preferably, the second connecting part is provided with a stop protrusion, the stop protrusion abuts against the ground connecting piece to limit the movement of the ground connecting piece, and the stop protrusion is provided with an indicating protrusion, through the above improvement, the insertion stroke of the ground connecting piece is ensured, and the indicating protrusion and the stop protrusion cooperate to form an indicating arrow, which is more convenient for users to operate and use.

[0012] Preferably, the shell is provided with a mounting seat, the mounting seat is provided with a mounting protrusion, the mounting protrusion is inserted with a conductive connecting piece, the conductive connecting piece is provided with a conductive connecting part for connecting the wire, and the mounting protrusion is provided with a limiting cover, and the limiting cover and the mounting protrusion form a connecting cavity therebetween;

[0013] The shell is inserted with a wire assembly, the wire assembly comprises a connecting shell and a wire inserted in the connecting shell, the connecting shell is inserted in the connecting cavity, and the conductive connecting part is inserted in the connecting shell to form an electrical connection with the wire, through the above improvement, the external wire and the internal circuit of the motor are quickly and reliably plugged and connected, the assembly efficiency is greatly improved, and the consistency and stability of the connection are ensured.

[0014] Preferably, the limiting cover is formed with a clamping hook, and the connecting shell is provided with a clamping protrusion on both sides for clamping cooperation with the clamping hook, through the above improvement, the mechanical self-locking of the wire assembly after insertion is realized, and the stability of the installation of the connecting shell is ensured, the precise positioning and rapid assembly between the limiting cover and the mounting protrusion are ensured, and the deviation or misplacement of the limiting cover during installation is effectively prevented.

[0015] Preferably, the limiting cover is provided with a plug-in column, and the mounting protrusion is provided with a plug-in slot for the plug-in column, through the above improvement, the rapid and precise positioning between the limiting cover and the mounting protrusion is realized, and the radial deviation of the limiting cover during fastening is prevented.

[0016] Preferably, the limiting cover is provided with a limiting protrusion, and the mounting protrusion is provided with a limiting groove for the limiting protrusion, through the above improvement, the limiting protrusion and the limiting groove are matched, and the accuracy and stability of the limiting cover installation are further improved.

[0017] Preferably, the mounting protrusion is provided with a mounting groove for the conductive connecting piece, and the conductive connecting piece is provided with an abutting protrusion, the abutting protrusion is in abutment with the groove wall of the mounting groove, through the above improvement, the accurate positioning and gapless fixing of the conductive connecting piece in the mounting groove are realized, and the conductive connecting piece is prevented from shaking in the mounting groove, and the stability of the conductive connecting piece installation is ensured.

[0018] Preferably, the connecting shell is provided with a connecting spring piece, the connecting spring piece is connected with the wire, and the connecting spring piece is provided with an abutting groove for the conductive connecting part, through the above improvement, the electric connection of the wire assembly and the conductive connecting part is realized, and the conductive connecting part is fixed through the abutting groove, so as to ensure the reliability of the electric connection.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] Through setting the grounding connecting piece on the shell, and through the grounding wire assembly and the grounding connecting piece plug-in cooperation constitute ground connection, and the grounding wire assembly includes the plug-in piece, and the grounding wire connected with the plug-in piece, the plug-in piece is provided with the connecting groove for the grounding connecting piece, only need to insert the grounding connecting piece into the connecting groove of the plug-in piece, can complete the ground, compared with the prior art through riveting or screw fixing greatly improves the installation efficiency, and can effectively avoid the problem of poor contact caused by screw loosening or rust. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic view of the utility model;

[0022] Figure 2 It is the structure schematic view of the plug-in piece of the utility model;

[0023] Figure 3 It is the structure schematic view of the shell of the utility model;

[0024] Figure 4 It is the structure schematic view of the bottom of the shell of the utility model;

[0025] Figure 5 It is the structure schematic view of the cover plate of the utility model;

[0026] Figure 6 It is the structure schematic view of the mounting seat and the limiting cover cooperation of the utility model;

[0027] Figure 7 Structure diagram of the mounting convex part of the utility model;

[0028] Figure 8 Structure diagram of the limiting cover of the utility model;

[0029] Figure 9 Structure diagram of the wire assembly of the utility model;

[0030] Figure 10 Structure diagram of the mounting convex part and the conductive connecting piece of the utility model;

[0031] Figure 11 Structure diagram of the conductive connecting piece of the utility model;

[0032] Figure 12 Structure diagram of the mounting seat of the utility model;

[0033] Figure 13 Sectional view of the overall structure of the utility model;

[0034] In the figure: 1, shell; 2, ground connecting piece; 3, ground wire assembly; 1.1, plug-in piece; 1.2, ground wire; 1.3, connecting groove; 1.4, first connecting part; 1.5, second connecting part; 1.6, abutting convex block; 1.7, compression block; 1.8, positioning convex block; 1.9, positioning hole; 1.10, stop convex part; 1.11, indicating convex part; 2.1, mounting main body; 2.2, cover plate; 2.3, mounting seat; 2.4, mounting convex part; 2.5, conductive connecting piece; 2.6, conductive connecting part; 2.7, limiting cover; 2.8, connecting cavity; 3.1, wire assembly; 3.2, connecting shell; 3.3, wire; 3.4, clamping hook; 3.5, clamping convex part; 3.6, plug-in column; 3.7, plug-in groove; 4.1, limiting convex part; 4.2, limiting groove; 4.3, mounting groove; 4.4, abutting convex part; 4.5, connecting spring piece; 4.6, abutting groove; 5.1, insertion groove; 5.2, first limiting block; 5.3, second limiting block; 5.4, sliding channel; DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0036] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0037] like Figures 1-13 As shown, a connection structure for a motor grounding wire includes a housing 1, a grounding connection piece 2 formed on the housing 1, and a grounding wire assembly 3 inserted into the grounding connection piece 2. The grounding wire assembly 3 includes a plug piece 1.1 and a grounding wire 1.2 connected to the plug piece 1.1. The plug piece 1.1 forms a connection groove 1.3 for the grounding connection piece 2 to be inserted.

[0038] The housing 1 includes an open mounting body 2.1 and a cover plate 2.2 covering the mounting body 2.1. The grounding connection piece 2 is integrally formed on the cover plate 2.2. Integrating the grounding connection piece 2 into the cover plate 2.2 improves the structural strength of the grounding connection piece 2 and enables quick plug-in installation of the grounding wire 1.2, greatly improving assembly efficiency and maintenance convenience, and effectively avoiding poor contact problems caused by loose screws or corrosion.

[0039] When connecting the grounding wire 1.2, simply insert the grounding connecting piece 2 into the connecting slot 1.3 of the plug piece 1.1 to complete the grounding. Compared with the existing technology that fixes by riveting or screws, not only is the production efficiency greatly improved, but the problem of poor contact caused by loose screws or corrosion can also be effectively avoided.

[0040] like Figures 1-2 As shown, as a further explanation of the specific structure of the plug-in piece 1.1 in this embodiment, the plug-in piece 1.1 includes a first connecting portion 1.4 for connecting the grounding wire 1.2 and a second connecting portion 1.5 for connecting the grounding connecting piece 2. The second connecting portion 1.5 is provided with an abutting protrusion 1.6 and a pressing block 1.7. A connecting groove 1.3 is provided between the abutting protrusion 1.6 and the pressing block 1.7. A positioning protrusion 1.8 is provided on the abutting protrusion 1.6, and a positioning hole 1.9 is provided on the grounding connecting piece 2 for the positioning protrusion 1.8 to be inserted.

[0041] During the insertion process of the grounding connection piece 2 and the plug-in piece 1.1, the grounding connection piece 2 will be inserted into the connecting groove 1.3 along the abutment protrusion 1.6 and be abutted and fixed between the abutment protrusion 1.6 and the clamping block 1.7 until the positioning protrusion 1.8 on the abutment protrusion 1.6 is inserted into the positioning hole 1.9 to realize the connection between the grounding connection piece 2 and the plug-in piece 1.1.

[0042] Furthermore, the thickness of the abutting protrusion 1.6 gradually increases along the insertion direction, so that the grounding connection piece 2 is gradually pressed and fixed as it is inserted, thereby increasing the reliability of the connection between the grounding connection piece 2 and the plug piece 1.1.

[0043] As preferred, the second connecting part 1.5 is provided with a stop protrusion 1.10, the stop protrusion 1.10 is in abutment with the grounding connecting piece 2 to limit the grounding connecting piece 2 from continuing to move, and the stop protrusion 1.10 is provided with an indication protrusion 1.11, which guarantees the insertion stroke of the grounding connecting piece 2, and the indication protrusion 1.11 cooperates with the stop protrusion 1.10 to form an indication arrow, thereby facilitating the user to operate and use.

[0044] As shown in Figures 5-13 As a further explanation of the connection of the internal circuit of the motor, the housing 1 is provided with a mounting seat 2.3 for mounting the transmission gear set, the mounting seat 2.3 is provided with a mounting protrusion 2.4, the mounting protrusion 2.4 is inserted with a conductive connecting piece 2.5, the conductive connecting piece 2.5 is provided with a conductive connecting part 2.6 for connecting the wire 3.3, and the mounting protrusion 2.4 is provided with a limiting cover 2.7, and the limiting cover 2.7 and the mounting protrusion 2.4 form a connecting cavity 2.8.

[0045] Specifically, the housing 1 is inserted with a wire assembly 3.1, the wire assembly 3.1 includes a connecting housing 3.2 and a wire 3.3 inserted in the connecting housing 3.2, the connecting housing 3.2 is inserted into the connecting cavity 2.8 and forces the conductive connecting part 2.6 to be inserted into the connecting housing 3.2 to form an electrical connection with the wire 3.3, when the circuit connection is performed, only the connecting housing 3.2 needs to be inserted into the connecting cavity 2.8, realizing the quick and reliable plug-in connection of the external wire and the internal circuit of the motor, greatly improving the assembly efficiency and ensuring the consistency and stability of the connection.

[0046] As shown in Figures 5-13 As a further explanation of the connection of the connecting housing 3.2 and the mounting protrusion 2.4, the limiting cover 2.7 is formed with a clamping hook 3.4, and the connecting housing 3.2 is provided with a clamping protrusion 3.5 which cooperates with the clamping hook 3.4 to realize mechanical self-locking after the wire assembly 3.1 is inserted, and to ensure the stability of the installation of the connecting housing 3.2, to ensure the precise positioning and quick assembly between the limiting cover 2.7 and the mounting protrusion 2.4, and to effectively prevent the limiting cover 2.7 from being offset or misaligned during the installation process.

[0047] When the connecting housing 3.2 is inserted into the connecting cavity 2.8 to the predetermined position, the clamping protrusion 3.5 and the clamping hook 3.4 will be automatically buckled, emitting a clear click sound or providing a clear tactile feedback, ensuring that the connector is accurately in place and effectively preventing it from accidentally falling off under vibration or external force.

[0048] Further, the limiting cover 2.7 is provided with an insertion column 3.6, and the mounting protrusion 2.4 is provided with an insertion slot 3.7 for the insertion of the insertion column 3.6, so that the limiting cover 2.7 and the mounting protrusion 2.4 are quickly and accurately positioned, the size and shape accuracy of the connecting cavity 2.8 formed by the two are ensured, and thus the wire assembly 3.1 can be smoothly and accurately guided to the predetermined position each time, and the stable and reliable electrical connection with the conductive connecting piece 2.5 is achieved.

[0049] In addition, the limiting cover 2.7 is provided with a limiting protrusion 4.1, and the mounting protrusion 2.4 is provided with a limiting slot 4.2 for the insertion of the limiting protrusion 4.1, and the limiting protrusion 4.1 and the limiting slot 4.2 are matched to further improve the accuracy and stability of the installation of the limiting cover 2.7, and to ensure the absolute stability of the internal space of the connecting cavity 2.8 formed by the two.

[0050] As preferred, the mounting protrusion 2.4 is provided with a mounting slot 4.3 for the insertion of the conductive connecting piece 2.5, and the conductive connecting piece 2.5 is provided with an abutting protrusion 4.4, and the abutting protrusion 4.4 abuts against the slot wall of the mounting slot 4.3, so that the accurate positioning and gapless fixing of the conductive connecting piece 2.5 in the mounting slot 4.3 are achieved, and the conductive connecting piece 2.5 is prevented from shaking in the mounting slot 4.3, effectively preventing any movement or shaking of the conductive connecting piece 2.5 in the mounting slot 4.3 in any direction, and greatly enhancing the vibration resistance and mechanical impact resistance of the connector.

[0051] As preferred, the bottom of the shell 1 is provided with an insertion slot 5.1 for the insertion of the connecting shell 3.2, and the insertion slot 5.1 is oppositely arranged with the connecting cavity 2.8, so that the connecting shell 3.2 can be inserted into the connecting cavity 2.8 through the insertion slot 5.1, and the insertion slot 5.1 is oppositely arranged with the connecting cavity 2.8 to ensure the convenience of the installation of the connecting shell 3.2.

[0052] As preferred, the mounting protrusion 2.4 is provided with a first limiting block 5.2, and the limiting cover 2.7 is provided with a second limiting block 5.3, and the first limiting block 5.2 and the second limiting block 5.3 abut against the two sides of the connecting shell 3.2 respectively and form a sliding channel 5.4, which provides a high-precision straight guide channel for the plugging process of the connecting shell 3.2, and avoids the deflection, inclination or shaking of the connecting shell 3.2 during the insertion process.

[0053] As Figure 13As shown, for further explanation of the connection of the connecting shell 3.2 and the conductive connecting part 2.6, a connecting spring 4.5 is arranged in the connecting shell 3.2, the connecting spring 4.5 is connected with the wire 3.3, and an abutting groove 4.6 for inserting the conductive connecting part 2.6 is formed on the connecting spring 4.5, when the conductive connecting part 2.6 is inserted into the connecting shell 3.2, the conductive connecting part 2.6 is placed into the abutting groove 4.6, and the conductive connecting part 2.6 is in abutment with the connecting spring 4.5 to form an electrical connection, realizing the electrical connection of the wire assembly 3.1 and the conductive connecting part 2.6, and the conductive connecting part 2.6 is fixed by the abutting groove 4.6 to ensure the reliability of the electrical connection.

[0054] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A connection structure for a motor grounding wire, characterized in that, The utility model provides a grounding wire assembly, including shell (1), the grounding connecting piece (2) is formed on shell (1), and the grounding wire assembly (3) is inserted on the grounding connecting piece (2), the grounding wire assembly (3) includes the insertion piece (1.1), and the grounding wire (1.2) is connected with insertion piece (1.1), and the insertion groove (1.3) for the insertion of grounding connecting piece (2) is formed on insertion piece (1.1). The shell (1) includes the open installation main body (2.1), and the cover plate (2.2) is arranged on the installation main body (2.1), and the grounding connecting piece (2) is integrally formed on the cover plate (2.2).

2. The connection structure of a motor ground wire according to claim 1, characterized in that: The insertion piece (1.1) includes the first connecting portion (1.4) connected with the grounding wire (1.2), and the second connecting portion (1.5) connected with the grounding connecting piece (2), the abutting protrusion (1.6) and the pressing block (1.7) are formed on the second connecting portion (1.5), the insertion groove (1.3) is formed between the abutting protrusion (1.6) and the pressing block (1.7), and the positioning protrusion (1.8) is formed on the abutting protrusion (1.6), and the positioning hole (1.9) for the positioning protrusion (1.8) is formed on the grounding connecting piece (2).

3. The connection structure of a motor ground wire according to claim 2, characterized in that: The thickness of the abutting protrusion (1.6) gradually increases along the insertion direction.

4. The structure of claim 2, wherein: The second connecting portion (1.5) is provided with a stop protrusion (1.10), the stop protrusion (1.10) is in abutment with the grounding connecting piece (2) to limit the grounding connecting piece (2) from moving continuously, and the stop protrusion (1.10) is provided with an indicating protrusion (1.11).

5. The structure of claim 1, wherein: The shell (1) is provided with a mounting seat (2.3), the mounting seat (2.3) is provided with a mounting protrusion (2.4), the mounting protrusion (2.4) is provided with a conductive connecting piece (2.5), the conductive connecting piece (2.5) is provided with a conductive connecting portion (2.6) for connecting a wire (3.3), and the mounting protrusion (2.4) is provided with a limiting cover (2.7), and the limiting cover (2.7) and the mounting protrusion (2.4) form a connecting cavity (2.8). The shell (1) is provided with a wire assembly (3.1), the wire assembly (3.1) includes a connecting shell (3.2), and the wire (3.3) is inserted into the connecting shell (3.2), the connecting shell (3.2) is inserted into the connecting cavity (2.8), and the conductive connecting portion (2.6) is inserted into the connecting shell (3.2) to form an electrical connection with the wire (3.3).

6. The structure of claim 5, wherein: The limiting cover (2.7) is provided with a clamping hook (3.4), and the connecting shell (3.2) is provided with a clamping protrusion (3.5) on both sides to be clamped with the clamping hook (3.4).

7. The structure of claim 5, wherein: The limiting cover (2.7) is provided with an insertion column (3.6), and the mounting protrusion (2.4) is provided with an insertion groove (3.7) for the insertion of the insertion column (3.6).

8. The structure of claim 5, wherein: The limiting cover (2.7) is provided with a limiting protrusion (4.1), and the mounting protrusion (2.4) is provided with a limiting groove (4.2) for the insertion of the limiting protrusion (4.1).

9. The structure of claim 5, wherein: The mounting convex part (2.4) is provided with a mounting groove (4.3) for inserting the conductive connecting piece (2.5), and the conductive connecting piece (2.5) is provided with an abutting convex part (4.4) which abuts against the groove wall of the mounting groove (4.3).

10. The structure of claim 5, wherein: The connecting shell (3.2) is provided with a connecting spring piece (4.5) which is connected with the wire (3.3), and the connecting spring piece (4.5) is provided with an abutting groove (4.6) for inserting the conductive connecting part (2.6).

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