A starting motor wiring terminal anti-falling protection structure

Abstract

The utility model discloses a kind of starting machine wire terminal anti-drop type protection structure, it is related to wire terminal field, including starter housing and wire terminal body, the starter housing outer wall is equipped with protection structure, the protection structure includes the protection shell fixedly installed in the starter housing outer wall, and protection shell end portion is equipped with protective cover, the protection shell inner wall is equipped with extrusion block, the wire terminal body end portion is equipped with fixed seat, and fixed seat outer wall is equipped with guide block, the fixed seat is connected with starter housing by bolt, the protection shell inside is equipped with anti-drop structure. The starting machine wire terminal anti-drop type protection structure can effectively block the entry of external dust, moisture and other impurities, prevent the wire terminal from being eroded, and simultaneously realize the multiple stable limiting of the wire terminal. It effectively prevents the wire terminal from loosening or falling off during the vibration of the starter, significantly improves the connection stability, and ensures the continuous smoothness of the starter circuit.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, specifically to a starter motor terminal block anti-disconnection protective structure. Background Technology

[0002] The starter terminal block is an interface device on the starter used to connect to external circuits. Its function is to transmit power, control signals, etc. to the starter through wires, so as to realize the starter's starting and stopping functions.

[0003] In the prior art, Chinese Patent No. CN221042447U discloses a motor terminal block, including a lead plate and a copper stud. The stud has an axially oriented hole at its lead end, and a stepped nut sleeve made of brass. The lead wire passes through the small end of the nut sleeve and is inserted into and welded into the hole. The large end of the nut sleeve is connected to the lead end via a threaded structure. The small end is pressed together with pliers or pressure pliers, eliminating the need for a connecting piece. The lead wire is directly welded to the copper stud, eliminating the risk of short circuits caused by contact between connecting pieces, and also increasing the internal space at the lead wire location.

[0004] Based on the above materials, since starter motors generate vibrations during operation and operate in a complex environment, existing wiring terminals are prone to loosening and falling off. They may also be corroded by dust, moisture, etc., affecting the normal operation of the starter motor. Therefore, we propose a starter motor wiring terminal anti-dislodgement protective structure. Utility Model Content

[0005] The purpose of this utility model is to provide a protective structure for the terminal block of a starter motor to prevent it from coming loose or falling off, and to solve the problem mentioned in the background art that the terminal block of the prior art is prone to loosening and falling off, and may also be corroded by dust, moisture, etc., affecting the normal operation of the starter motor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a starter terminal block anti-detachment protective structure, comprising a starter housing and a terminal block body, wherein the terminal block body is provided with a wire at its end, and the outer wall of the starter housing is provided with a protective structure for protecting the terminal block body, the protective structure comprising a protective outer shell fixedly installed on the outer wall of the starter housing, and a protective cover at the end of the protective outer shell, a pressing block provided on the inner wall of the protective outer shell, and a guide groove provided on the inner wall of the pressing block, a fixing seat provided at the end of the terminal block body, and a guide block provided on the outer wall of the fixing seat, the fixing seat being connected to the starter housing by bolts, and an anti-detachment structure provided inside the protective outer shell for preventing the terminal block body from falling off.

[0007] Further, the protective housing is a hollow cavity with one end open, and the outer wall of the open end of the protective housing is provided with external threads, and the protective cover is connected to the protective housing through the external threads.

[0008] Further, the cross-section of the extrusion block is designed in an annular shape, and the outer diameter of the extrusion block is the same as the inner diameter of the protective housing, and the length of the extrusion block is less than the length of the protective housing. Two groups of guiding grooves are symmetrically arranged on the inner wall of the extrusion block.

[0009] Further, the fixing seat is located at the end of the wiring terminal body away from the wire, and the corners at the end of the fixing seat are designed with bevel angles, and the outer wall of the fixing seat is fitted with the inner wall of the extrusion block. Two groups of guiding blocks are symmetrically arranged on the outer wall of the fixing seat, and the outer wall of the guiding block is fitted with the inner wall of the guiding groove.

[0010] Further, the cross-section of the protective cover is designed in a "C" shape, and a wire passing hole for the wire to pass through is opened on the outer wall of the protective cover, and a sealing ring is provided on the inner wall of the wire passing hole. Anti-slip grooves are opened on the outer wall of the protective cover and are distributed at equal angles.

[0011] Further, the anti-detachment structure includes elastic clamping blocks fixedly installed on the inner wall of the protective cover, and anti-detachment grooves are opened on the inner wall of the elastic clamping blocks and are distributed at equal intervals.

[0012] Further, the outer wall of the elastic clamping block is designed with an inclined surface, and the outer walls on both sides of the elastic clamping block are designed with arc surfaces, and the length of the elastic clamping block is greater than the distance between the inner wall of the protective cover and the end of the extrusion block. The inner wall of the elastic clamping block is fitted with the outer wall of the wiring terminal body, and the outer wall of the elastic clamping block is in contact with the inner wall of the extrusion block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. For the anti-detachment protection structure of the wiring terminal for the starter, multiple stable limit positions for the wiring terminal are achieved by setting the anti-detachment structure. Under the cooperation of the protective cover and the protective housing, the elastic clamping blocks can closely fit the outer wall of the wiring terminal body, and the anti-detachment grooves on its inner wall further increase the friction force with the wiring terminal, effectively preventing the wiring terminal from loosening or falling off during the vibration of the starter, significantly improving the connection stability, and ensuring the continuous smoothness of the starter circuit.

[0014] 2. The protective housing and the protective cover form a closed protection space, which can effectively block external impurities such as dust and water vapor from entering, avoid the wiring terminal from being eroded, the sealing ring on the inner wall of the wire passing hole further enhances the sealing effect, reduces the damage of environmental factors to the wiring terminal, extends the service life of the wiring terminal, and reduces the maintenance cost of the starter.

[0015] 3. The protective shell and protective cover are connected by external threads, which is simple to operate and easy to quickly disassemble and assemble. The fixing base is connected to the starter housing by bolts, which is stable and easy to disassemble. The cooperation between the guide block and the guide groove not only provides precise guidance for the installation of the terminal block, but also ensures the smoothness of the installation process. At the same time, it can limit the radial movement of the terminal block during use, thus improving the stability of the overall structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the terminal block body, fixing base, and guide block of this utility model; Figure 3 This is a schematic cross-sectional view of the protective shell and protective cover of this utility model; Figure 4 This is a schematic diagram of the internal structure of the protective shell of this utility model; Figure 5 This is a schematic diagram of the protective cover structure of this utility model; Figure 6 This is a schematic diagram of the protective cover, elastic clamping block, and anti-detachment groove structure of this utility model.

[0017] In the diagram: 1. Starter housing; 2. Terminal block body; 201. Wire; 3. Fixing base; 301. Guide block; 4. Protective housing; 401. Guide groove; 402. External thread; 5. Pressing block; 6. Protective cover; 601. Wire hole; 602. Sealing ring; 603. Anti-slip groove; 7. Elastic clamping block; 701. Anti-disengagement groove. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figures 1-6, the present utility model provides the following technical solution: A wire terminal anti - detachment protection structure for a starter, including a starter housing 1 and a wire terminal body 2. A wire 201 is provided at the end of the wire terminal body 2. A protection structure for protecting the wire terminal body 2 is provided on the outer wall of the starter housing 1. The protection structure includes a protection shell 4 fixedly installed on the outer wall of the starter housing 1, and a protection cover 6 is provided at the end of the protection shell 4. An extrusion block 5 is provided on the inner wall of the protection shell 4, and a guide groove 401 is opened on the inner wall of the extrusion block 5. A fixing seat 3 is provided at the end of the wire terminal body 2, and a guide block 301 is provided on the outer wall of the fixing seat 3. The fixing seat 3 is connected to the starter housing 1 by bolts.

[0020] As Figures 1-4 shown, the protection shell 4 is a hollow cavity with one end open, and an external thread 402 is provided on the outer wall of the open end of the protection shell 4. And the protection cover 6 is connected to the protection shell 4 through the external thread 402.

[0021] As Figure 3 and Figure 4 shown, the cross - section of the extrusion block 5 is designed as an annular shape, and the outer diameter of the extrusion block 5 is the same as the inner diameter of the protection shell 4, and the length of the extrusion block 5 is less than the length of the protection shell 4. Two groups of guide grooves 401 are symmetrically arranged on the inner wall of the extrusion block 5.

[0022] As Figure 1 and Figure 6 shown, the fixing seat 3 is located at one end of the wire terminal body 2 away from the wire 201, and the end corners of the fixing seat 3 are designed as beveled corners. And the outer wall of the fixing seat 3 is in contact with the inner wall of the extrusion block 5. Two groups of guide blocks 301 are symmetrically arranged on the outer wall of the fixing seat 3, and the outer wall of the guide block 301 is in contact with the inner wall of the guide groove 401. The cross - section of the protection cover 6 is designed as a "匚" shape, and a wire - passing hole 601 for the wire 201 to pass through is opened on the outer wall of the protection cover 6. And a sealing ring 602 is provided on the inner wall of the wire - passing hole 601. Anti - slip grooves 603 are opened on the outer wall of the protection cover 6 and are distributed at equal angles.

[0023] The protective structure forms a closed protective space through the cooperation of the protective shell 4 and the protective cover 6, achieving all-round protection for the terminal block. The protective shell 4 is fixedly installed on the outer wall of the starter housing 1 and is a hollow cavity with one open end. The external thread 402 on the outer wall of its open end cooperates with the protective cover 6. By rotating the protective cover 6, the two can be tightly connected. When the protective cover 6 is tightened, it and the protective shell 4 form a complete closed cavity, which wraps the terminal block body 2 inside, effectively blocking external dust, moisture and other impurities from entering. At the same time, the wire hole 601 opened in the protective cover 6 allows the wire 201 to pass through. The sealing ring 602 in the hole fits tightly with the outer wall of the wire 201, further enhancing the sealing performance and preventing impurities from entering through the gap of the wire hole 601. The fixing seat 3 is connected to the starter housing 1 by bolts. Its outer wall fits with the inner wall of the extrusion block 5 in the protective shell 4. With the sliding guidance of the guide block 301 and the guide groove 401, the terminal block is ensured to be in a stable position in the protective space, reducing positional displacement caused by vibration, thereby ensuring the continuous effectiveness of the protective structure.

[0024] Example 2: Please refer to Figures 3-6 Based on Embodiment 1, an anti-detachment structure is also disclosed, the specific structure of which is as follows: The protective shell 4 is provided with an anti-detachment structure to prevent the terminal body 2 from falling off. The anti-detachment structure includes an elastic clamping block 7 fixedly installed on the inner wall of the protective cover 6, and the inner wall of the elastic clamping block 7 is provided with anti-detachment slots 701 distributed at equal intervals. The outer wall of the elastic clamping block 7 is designed with a bevel, and both sides of the outer wall of the elastic clamping block 7 are designed with an arc surface. The length of the elastic clamping block 7 is greater than the distance between the inner wall of the protective cover 6 and the end of the pressing block 5. The inner wall of the elastic clamping block 7 is in contact with the outer wall of the terminal body 2, and the outer wall of the elastic clamping block 7 is in contact with the inner wall of the pressing block 5.

[0025] The anti-detachment structure utilizes the cooperation of the elastic clamping block 7 and the compression block 5 to achieve multiple fastening and limiting of the terminal body 2. The elastic clamping block 7 of the anti-detachment structure is fixedly installed on the inner wall of the protective cover 6. Its outer wall is designed with a slope and its length is greater than the distance between the inner wall of the protective cover 6 and the end of the compression block 5. When the protective cover 6 and the protective shell 4 are tightened by the external thread 402, the protective cover 6 drives the elastic clamping block 7 to move towards the compression block 5. The slope of the elastic clamping block 7 contacts the inner wall of the compression block 5 and is compressed, forcing the elastic clamping block 7 to undergo elastic deformation, and its inner wall tightly fits the terminal body 2. The outer wall of the terminal body 2, and the anti-disengagement groove 701 of the inner wall of the elastic clamping block 7 form an interlocking contact with the surface of the terminal, increasing the friction between the two. In addition, the beveled design of the end of the fixing seat 3 facilitates its smooth entry into the squeezing block 5. The cooperation between the guide block 301 and the guide groove 401 restricts the radial rotation of the terminal. Combined with the bolt connection between the fixing seat 3 and the starter housing 1, a complete fixed link is formed from the terminal body 2 to the starter housing 1, effectively offsetting the vibration and impact force when the starter is working, and preventing the terminal from becoming loose or falling off.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A starter motor terminal block anti-disengagement protective structure, comprising a starter motor housing (1) and a terminal block body (2), wherein the terminal block body (2) is provided with a wire (201) at its end, characterized in that: The outer wall of the starter housing (1) is provided with a protection structure for protecting the wiring terminal body (2). The protection structure includes a protection housing (4) fixedly mounted on the outer wall of the starter housing (1), and a protection cover (6) is provided at the end of the protection housing (4). An extrusion block (5) is provided on the inner wall of the protection housing (4), and a guide groove (401) is formed on the inner wall of the extrusion block (5). A fixing seat (3) is provided at the end of the wiring terminal body (2), and a guide block (301) is provided on the outer wall of the fixing seat (3). The fixing seat (3) is connected to the starter housing (1) by bolts. A anti-detachment structure is provided inside the protection housing (4) to prevent the wiring terminal body (2) from falling off.

2. The anti-disconnection protective structure for starter terminals according to claim 1, characterized in that: The protection housing (4) is a hollow cavity with one end open. External threads (402) are provided on the outer wall of the open end of the protection housing (4), and the protection cover (6) is connected to the protection housing (4) through the external threads (402).

3. The anti-disconnection protective structure for starter terminals according to claim 1, characterized in that: The cross-section of the extrusion block (5) is designed to be circular ring-shaped, and the outer diameter of the extrusion block (5) is the same as the inner diameter of the protection housing (4). The length of the extrusion block (5) is less than the length of the protection housing (4). Two groups of guide grooves (401) are symmetrically arranged on the inner wall of the extrusion block (5).

4. The anti-disconnection protective structure for starter terminals according to claim 1, characterized in that: The fixing seat (3) is located at one end of the wiring terminal body (2) away from the wire (201). The end corners of the fixing seat (3) are designed to be beveled. The outer wall of the fixing seat (3) is in contact with the inner wall of the extrusion block (5). Two groups of guide blocks (301) are symmetrically arranged on the outer wall of the fixing seat (3), and the outer wall of the guide block (301) is in contact with the inner wall of the guide groove (401).

5. The anti-disengagement protective structure for starter terminals according to claim 1, characterized in that: The cross-section of the protection cover (6) is designed to be "匚"-shaped. A wire passing hole (601) for the wire (201) to pass through is provided on the outer wall of the protection cover (6), and a sealing ring (602) is provided on the inner wall of the wire passing hole (601). Anti-slip grooves (603) are provided on the outer wall of the protection cover (6) and are equally angularly distributed.

6. The anti-disconnection protective structure for starter terminals according to claim 1, characterized in that: The anti-detachment structure includes an elastic clamping block (7) fixedly mounted on the inner wall of the protection cover (6), and anti-detachment clamping grooves (701) are formed on the inner wall of the elastic clamping block (7) at equal intervals.

7. The anti-disengagement protective structure for starter terminals according to claim 6, characterized in that: The outer wall of the elastic clamping block (7) is designed to be beveled, and the outer walls on both sides of the elastic clamping block (7) are designed to be arc-shaped. The length of the elastic clamping block (7) is greater than the distance between the inner wall of the protection cover (6) and the end of the extrusion block (5). The inner wall of the elastic clamping block (7) is in contact with the outer wall of the wiring terminal body (2), and the outer wall of the elastic clamping block (7) is in contact with the inner wall of the extrusion block (5).

Images