Commercial vehicle electromagnetic switch with vent plug

Abstract

The utility model discloses an electromagnetic switch with a vent plug for a commercial vehicle, the electromagnetic switch is designed into a scheme with a vent plug, when the electromagnetic switch is used, high-pressure water vapor generated in an inner cavity is discharged out of the cavity through a polymer breathable film on the vent plug, so that an exchange channel is formed between the inner cavity of the electromagnetic switch and external air; and the failure of the electromagnetic switch caused by electric shock icing or corrosion after water vapor is condensed into water drops is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic switch technology, and specifically relates to an electromagnetic switch with a vent plug for commercial vehicles. Background Technology

[0002] As OEMs demand increasingly higher levels of sealing from starters, the sealing performance of electromagnetic switches has been upgraded to IP67. However, moisture generated during use tends to concentrate inside the electromagnetic switch, preventing it from exchanging with external air pressure. This causes water droplets to form after cooling and remain inside the switch, leading to ice formation on the contacts in winter and corrosion and jamming of internal components in summer. Further improvements are needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an electromagnetic switch with a vent plug for commercial vehicles, which can solve the problems existing in the prior art.

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] This utility model embodiment provides an electromagnetic switch for commercial vehicles with a vent plug, including an electromagnetic switch cover component (1), a vent plug (2), a vent membrane (3), a water nozzle (4), and an electromagnetic switch body (5). The electromagnetic switch cover component (1) is installed at the bottom of the electromagnetic switch body (5). A stepped hole is pressed on the electromagnetic switch cover component (1), and the vent plug (2) is assembled in the stepped hole. The inner cavity of the electromagnetic switch body (5) is connected to the vent plug (2). The vent membrane (3) is disposed on the vent plug (2). The water nozzle (4) is installed on the outer end face of the electromagnetic switch cover component (1) and is located directly above the vent plug (2).

[0006] In one optional embodiment of this utility model, the vent plug (2) and the inner hole of the electromagnetic switch cover component (1) are interference-fitted by three rings of ribs on the outer circle of the vent plug to ensure a sealing effect.

[0007] In one optional embodiment of this utility model, the water nozzle (4) is held in place by a barb at the round hole on the end face of the electromagnetic switch cover component (1) to prevent external paint and mud contaminants from clogging the breathable membrane (3).

[0008] In one optional embodiment of this utility model, the breathable membrane (3) is fixed to the end face of the breathable plug (2) by dispensing adhesive.

[0009] Beneficial effects: This utility model embodiment provides an electromagnetic switch with a vent plug for commercial vehicles. The electromagnetic switch is designed with a vent plug. When the high-pressure water vapor generated in the inner cavity of the electromagnetic switch during use, it is discharged out of the cavity through the polymer breathable membrane on the vent plug, so that the inner cavity of the electromagnetic switch forms an exchange channel with the outside air. This avoids the electromagnetic switch from failing due to the water vapor condensing into water droplets and causing the contacts to freeze or rust. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a front structural schematic diagram of an electromagnetic switch with a vent plug for commercial vehicles, provided as an embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the back structure of an electromagnetic switch with a vent plug for a commercial vehicle, provided as an embodiment of this application.

[0013] Figure 3 This is a top view of an electromagnetic switch with a vent plug for a commercial vehicle, provided as an embodiment of this application.

[0014] Figure 4 for Figure 3 A partial cross-sectional view of AA in the image.

[0015] Figure 5 This is a schematic diagram of the cross-sectional structure of the vent plug of an electromagnetic switch with a vent plug for a commercial vehicle, provided as an embodiment of this application.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of a water nozzle with an electromagnetic switch and a vent plug for a commercial vehicle, provided as an embodiment of this application.

[0017] Figure 7 This is a physical image of an electromagnetic switch with a vent plug for a commercial vehicle, provided as an embodiment of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The terms "upper," "lower," "front," "rear," "left," and "right," etc., used when describing the installation position or direction of the structure or components in this embodiment are based on the orientation shown in the accompanying drawings. They are merely for convenience of description and are used to distinguish the relative positions of various components or directions, and do not represent the orientation of the electromagnetic switch when used in this embodiment.

[0019] like Figures 1-7 As shown, this embodiment of the present invention provides an electromagnetic switch for commercial vehicles with a vent plug, including an electromagnetic switch cover component 1, a vent plug 2, a vent membrane 3, a water nozzle 4, and an electromagnetic switch body 5. The electromagnetic switch cover component 1 is installed at the bottom of the electromagnetic switch body 5, and a stepped hole is pressed into the electromagnetic switch cover component 1. The vent plug 2 is fitted into the stepped hole, and the inner cavity of the electromagnetic switch body 5 communicates with the vent plug 2. The vent membrane 3 is disposed on the vent plug 2, and the water nozzle 4 is installed on the outer end face of the electromagnetic switch cover component 1 and located directly above the vent plug 2. Preferably, the vent plug 2 is made of fluororubber, and the vent membrane 3 is fixed to the end face of the vent plug 2 by dispensing adhesive.

[0020] The vent plug 2 and the inner hole of the electromagnetic switch cover component 1 are interference-fitted by three rings of ribs on the outer circle of the vent plug to ensure a sealing effect. The water nozzle 4 is held in place by a barb on the round hole of the end face and is held in place by a large round end face of the inner cavity of the electromagnetic switch cover component 1 to prevent external paint and mud contaminants from clogging the vent membrane 3.

[0021] This invention designs an electromagnetic switch with a vent plug. When the electromagnetic switch is in use, the high-pressure water vapor generated in the inner cavity is discharged out of the cavity through the polymer breathable membrane on the vent plug 2, so that the inner cavity of the electromagnetic switch forms an exchange channel with the outside air, and avoids the electromagnetic switch from failing due to the water vapor condensing into water droplets and causing the contacts to freeze or rust.

[0022] Although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. An electromagnetic switch for commercial vehicles with a vent plug, characterized in that, The device includes an electromagnetic switch cover component (1), a vent plug (2), a vent membrane (3), a water nozzle (4), and an electromagnetic switch body (5). The electromagnetic switch cover component (1) is installed at the bottom of the electromagnetic switch body (5). A stepped hole is pressed on the electromagnetic switch cover component (1). The vent plug (2) is installed in the stepped hole, and the inner cavity of the electromagnetic switch body (5) is connected to the vent plug (2). The vent membrane (3) is disposed on the vent plug (2). The water nozzle (4) is installed on the outer end face of the electromagnetic switch cover component (1) and is located directly above the vent plug (2).

2. The electromagnetic switch for commercial vehicles with a vent plug according to claim 1, characterized in that, The vent plug (2) and the inner hole of the electromagnetic switch cover component (1) are interference-fitted by three rings of ribs on the outer circle of the vent plug to ensure a sealing effect.

3. The electromagnetic switch for commercial vehicles with a vent plug according to claim 1, characterized in that, The water nozzle (4) is held in place by a barb at the round hole on the end face of the electromagnetic switch cover component (1) to protect the breathable membrane (3) from external paint and mud contaminants.

4. The electromagnetic switch for commercial vehicles with a vent plug according to claim 1, characterized in that, The breathable membrane (3) is fixed to the end face of the breathable plug (2) by dispensing adhesive.

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