Plastic end cover of electromagnetic switch of starter

Abstract

The utility model relates to a plastic end cover of an electromagnetic switch of a starter, which comprises a cover body and is characterized in that a plurality of binding posts corresponding to the electromagnetic switch are arranged on the cover body, sealing rings are accommodated in the inner rings of the binding posts, and a plurality of spaced water vapor grooves are formed in the end surfaces of the binding posts; an isolation structure elastically connected to the cover body is arranged between the binding posts, and one side, close to the end walls of the binding posts, of the isolation structure is hard; a parallel wire column fixed to the cover body is arranged below the binding post on one side, a conductive electric connection structure is connected between the binding post and the end face of the parallel wire column, the two ends of the electric connection structure are elastically arranged respectively, the electric connection structure comprises a water guide fin inserted into the bottom end of the side wall of the binding post, and the bottom of the water guide fin obliquely extends towards the lower portion of the end away from the parallel wire column. The starter electromagnetic switch end socket has the effect of enhancing isolation of the starter electromagnetic switch end socket.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of part accessories, in particular to a plastic end cover of a starter electromagnetic switch. BACKGROUND

[0002] An automobile starter can convert the electric energy of a storage battery into mechanical energy to drive a flywheel of an engine to rotate and realize the starting of the engine. An electromagnetic switch on the starter needs to be connected with an electromagnet and a driving motor, and the plastic end cover of the electromagnetic switch is used to connect the multiple connection posts on the inner and outer sides.

[0003] Water drops in a running process can splash onto the joint of the electromagnetic switch, and many vehicles currently adopt the automatic start-stop technology. The current electromagnetic switch end cover lacks insulation protection, the electromagnetic switch with water sticks is started multiple times in the running process, and circuit failure can be caused. In view of the related technologies in the above, the applicant proposes an improved plastic end cover which enhances the insulation of the end of the electromagnetic switch of the starter. CONTENT OF THE UTILITY MODEL

[0004] In order to enhance the insulation of the end of the electromagnetic switch of the starter, the application provides a plastic end cover of a starter electromagnetic switch.

[0005] The application provides a plastic end cover of a starter electromagnetic switch, which adopts the following technical scheme:

[0006] The plastic end cover of the starter electromagnetic switch comprises a cover body, characterized in that: a plurality of connection posts corresponding to the electromagnetic switch are arranged on the cover body, a sealing ring is arranged in the inner circle of the connection post, and a plurality of water vapor grooves are arranged on the end face of the connection post; an isolation structure elastically connected to the cover body is arranged between the connection posts, and the isolation structure is hard on the side close to the end wall of the connection post; a parallel connection post fixed to the cover body is arranged below the connection post on one side, an electrically conductive electric connection structure is connected between the end faces of the connection post and the parallel connection post, the electric connection structure is elastically arranged at both ends, and the electric connection structure comprises a water guide fin inserted into the bottom end of the side wall of the connection post, and the water guide fin is inclined and extended downward from the bottom towards the end away from the parallel connection post.

[0007] By adopting the above technical scheme, the sealing ring arranged in the inner circle of the connection post effectively prevents water and dust from entering and protects the internal circuit. The water vapor grooves arranged on the end face of the connection post can guide the accumulated water to be discharged and reduce the accumulation of water vapor. The elastically connected isolation structure and the electric connection structure are designed to facilitate quick installation and disassembly, do not produce additional operation complexity, and improve work efficiency.

[0008] Preferably, the end wall of the sealing ring protrudes from the connection post, and the protruding side of the sealing ring gradually thins from the inside to the outside.

[0009] Preferably, the isolation structure comprises elastic rubber columns and hard isolation plates, the elastic rubber columns extend from the center of the terminal post to between adjacent terminal posts, the elastic rubber columns are fixed to the cover body, and the length of the elastic rubber columns is not longer than the terminal post.

[0010] By using the above technical scheme, the use of the elastic rubber columns increases the elasticity of the connection part of the terminal post, can effectively absorb and relieve external vibration, the combined design of the hard isolation plates and the elastic rubber columns ensures the firmness and stability of the overall structure and does not lose the local elastic adaptability, the elastic rubber columns extend from the center of the terminal post to between adjacent terminal posts and the length is controlled, which ensures the best isolation effect in a limited space and does not hinder the wiring operation.

[0011] Preferably, the lateral end of the elastic rubber column is arc-shaped.

[0012] Preferably, the electric connection structure further comprises elastic contacts and accommodating grooves, the elastic contacts are fixed to the water guide fins and are arranged at the end wall of the terminal post, the elastic contacts extend away from the cover body, and the accommodating grooves are arranged in the end wall of the terminal post, and the elastic contacts can be accommodated in the accommodating grooves.

[0013] Preferably, the electric connection structure further comprises a water-proof connecting piece, one end of the water-proof connecting piece corresponds to the end wall of the terminal post, the other end extends upward and is fixed to the water guide fin, and the water-proof connecting piece is fixed to the uppermost end of the bottom wall of the water guide fin.

[0014] In summary, the present application has at least one of the following beneficial technical effects:

[0015] The sealing ring arranged in the inner circle of the terminal post effectively prevents water and dust from entering and protects the internal circuit, the water vapor groove designed on the end surface of the terminal post can guide the accumulated water to drain and reduce water vapor accumulation, the elastic connection of the isolation structure and the electric connection structure facilitates quick installation and disassembly and does not produce additional operation complexity, and work efficiency is improved;

[0016] The use of the elastic rubber columns increases the elasticity of the connection part of the terminal post, can effectively absorb and relieve external vibration, the combined design of the hard isolation plates and the elastic rubber columns ensures the firmness and stability of the overall structure and does not lose the local elastic adaptability, the elastic rubber columns extend from the center of the terminal post to between adjacent terminal posts and the length is controlled, which ensures the best isolation effect in a limited space and does not hinder the wiring operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structure of the embodiment of the present application;

[0018] Figure 2 is a structure schematic view of the embodiment of the present application;

[0019] Figure 3 is a partial view of the sealing ring according to an embodiment of the present application;

[0020] Reference signs: 1, cover body; 2, terminal post; 3, sealing ring; 4, water vapor groove; 5, isolation structure; 51, elastic rubber column; 52, hard isolation plate; 6, parallel terminal post; 7, electrical connection structure; 71, water guide fin; 72, elastic contact; 73, accommodating groove; 74, water-proof connecting piece. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings.

[0022] The present application discloses a plastic end cover of a starter electromagnetic switch, referring to Figure 1 , comprising a cover body, a plurality of terminal posts corresponding to the electromagnetic switch are arranged on the cover body, the threaded studs of the electromagnetic switch extend to the outside of the cover body through the terminal posts, and are connected to the wiring harness through nuts, a plurality of water vapor grooves are arranged on the end surface of the terminal post, which not only assists the evaporation of water permeating into the nut, but also increases the surface friction to prevent the nut from loosening.

[0023] Referring to Figure 1 , 2 , the inner circle of the terminal post accommodates a sealing ring, the end wall of the sealing ring protrudes from the terminal post, and the protruding side of the sealing ring gradually thins from the inside to the outside, when the sealing ring is pressed from the outside, the protruding part is compressed and expanded horizontally, thereby better sealing effect is generated by the combination of the threaded stud.

[0024] Referring to Figure 1 , 3 , an isolation structure elastically connected to the cover body is arranged between the terminal posts, the isolation structure comprises an elastic rubber column and a hard isolation plate, the elastic rubber column extends from the center of the terminal post to between the adjacent terminal posts, thereby the terminal posts are divided to achieve insulation effect, the elastic rubber column is fixed to the cover body, the lateral end of the elastic rubber column is arc-shaped, so that the elastic rubber column has elasticity, and the arc-shaped connection with the cover body has better vertical stability than the linear connection, preventing the transmission of automobile shaking.

[0025] Referring to Figure 1 , 3 , and the length of the elastic rubber column is not longer than that of the terminal post, thereby preventing the installation tool from contacting the elastic rubber column to generate resistance and hinder installation; the hard isolation plate is fixed to the extension end of the elastic rubber column and extends outward, the friction force of the installation tool on the surface of the hard object is small, and the elastic rubber column at the rear end has elasticity and can be deformed, thereby facilitating installation, and the outward extension of the hard isolation plate makes the upper insulation end extend to the side of the wiring harness, so that the water between the terminal posts cannot form a closed circuit and cannot be conducted.

[0026] Referring to Figure 1 , 3A parallel post is arranged below one side of the terminal post and fixed to the cover and connected in parallel with the corresponding terminal post. An electric connection structure is connected between the end faces of the terminal post and the parallel post. The electric connection structure comprises a water guide fin, an elastic contact, a containing groove and a water-proof connecting piece. The water guide fin is inserted into the bottom end of the side wall of the terminal post for positioning. One end of the water guide fin corresponds to the end face of the terminal post, and the other end extends along the side wall of the terminal post. The bottom of the water guide fin extends obliquely downwards away from the end of the parallel post. One end of the water-proof connecting piece corresponds to the end wall of the parallel post, and the other end extends upwards and is fixed to the water guide fin. The water-proof connecting piece is fixed to the uppermost end of the bottom wall of the water guide fin. When water column is attached to the terminal post, the water column will quickly gather at the end away from the parallel post along the water guide fin and drip down, so as to avoid the water from gathering on the water-proof connecting piece and affecting the stability of the electric connection.

[0027] Referring to Figure 1 , 3 The elastic contact is fixed to the water guide fin and arranged at the end wall of the terminal post corresponding to the terminal post. The elastic contact extends away from the cover. The containing groove is arranged in the end wall of the terminal post. The elastic contact can be contained in the containing groove, so as to enhance the integration of the elastic contact and the terminal post, keep good contact between the elastic contact and the nut, and improve the structural stability.

[0028] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A plastic end cap for an electromagnetic switch of a starter, comprising a cap body (1), characterized in that: The cover (1) is provided with a plurality of terminal posts (2) corresponding to the electromagnetic switch, the inner circle of the terminal post (2) is provided with a sealing ring (3), and the end face of the terminal post (2) is provided with a plurality of spaced water vapor grooves (4); the isolation structure (5) is elastically connected between the terminal posts (2) and the cover (1), the isolation structure (5) is hard near the end wall of the terminal post (2); the lower side of one side of the terminal post (2) is provided with a parallel terminal post (6) fixed to the cover (1), the end face of the terminal post (2) and the parallel terminal post (6) is connected with the electrically conductive electric connection structure (7), the electric connection structure (7) is elastically arranged at both ends, and the electric connection structure (7) includes a water guide fin (71) inserted into the side wall bottom end of the terminal post (2), and the bottom of the water guide fin (71) extends obliquely away from the lower side of the end of the parallel terminal post (6).

2. A plastic end cap for an electromagnetic switch of a starter, according to claim 1, characterized in that: The end wall of the sealing ring (3) protrudes from the terminal post (2), and the protruding side of the sealing ring (3) gradually thins from the inside to the outside.

3. A plastic end cap for an electromagnetic switch of a starter motor as defined in claim 1, characterized in that: The isolation structure (5) includes an elastic rubber column (51) and a hard isolation plate (52), the elastic rubber column (51) extends from the center of the terminal post (2) to the adjacent terminal post (2), the elastic rubber column (51) is fixed to the cover (1), and the length of the elastic rubber column (51) is not longer than the length of the terminal post (2); the hard isolation plate (52) is fixed to the extension end of the elastic rubber column (51) and extends outward.

4. A plastic end cap for an electromagnetic switch of a starter motor according to claim 3, characterized in that: The lateral end of the elastic rubber column (51) is arc-shaped.

5. A plastic end cap for an electromagnetic switch of a starter motor as defined in claim 1, characterized in that: The electric connection structure (7) further includes an elastic contact (72) and a containing groove (73), the elastic contact (72) is fixed to the water guide fin (71) and is arranged corresponding to the end wall of the terminal post (2), and the elastic contact (72) extends away from the cover (1); the containing groove (73) is provided on the end wall of the terminal post (2), and the elastic contact (72) can be contained in the containing groove (73).

6. A plastic end cap for an electromagnetic switch of a starter, according to claim 1, characterized in that: The electric connection structure (7) further includes a water-proof connecting piece (74), one end of the water-proof connecting piece (74) corresponds to the end wall of the parallel terminal post (6), the other end extends upward and is fixed to the water guide fin (71), and the water-proof connecting piece (74) is fixed to the uppermost end of the bottom wall of the water guide fin (71).

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