Charging plug damping ring for trickle charging of vehicles

Abstract

(Main claim): Charging plug damping ring for an airbox of an emergency vehicle with external power supply, characterized in that the charging plug damping ring is ring-shaped, that it can be fitted onto a standard Schuko plug, that it is made of an elastic, chemically resistant and saltwater-resistant material, and that its elasticity is designed to absorb impact energies generated during the automatic ejection of the plug and prevent damage to the vehicle or adjacent objects.

Description

Technical field

[0001] The invention relates to the field of emergency vehicles, in particular those with external power supply, which are supplied via an airbox or a comparable system with a mains connection (Schuko plug). State of the art

[0002] Emergency vehicles with external power supply often use a so-called airbox to connect the vehicle's battery to the mains power supply via a Schuko plug when the vehicle is stationary.

[0003] When the ignition is switched on, this plug is automatically ejected to ensure a safe separation between the vehicle and the mains. The problem underlying the invention

[0004] It is therefore the object of the present invention to provide a simple, cost-effective and reliable means that avoids or at least significantly reduces damage caused by the ejected Schuko plug, without impairing the functionality of the airbox or the power supply. Solution to the task

[0005] This task is solved by a charging plug damping ring that is slid onto the standardized Schuko plug.

[0006] The charging plug damping ring consists of a chemically resistant, rubber-like and saltwater-resistant material with spring properties.

[0007] The elasticity and damping characteristics of the material are chosen so that the kinetic energy generated during ejection is absorbed and a damaging impact is avoided.

[0008] The shape of the damping ring is designed so that it can be fitted securely and securely onto the plug without impairing its electrical or mechanical function. Advantages of the invention

[0009] The charging plug damping ring significantly reduces the risk of damage to the vehicle, airbox, or surrounding objects during the automatic ejection of the plug. Furthermore, the plug itself is protected by the shock-absorbing properties of the material. The invention is easy to retrofit and compatible with standard Schuko plugs. Another advantage is that, due to its chemical and saltwater resistance, the charging plug damping ring is durable and maintenance-free even under harsh operating conditions. Examples of implementation

[0010] In a preferred embodiment, the charging plug damping ring consists of an elastomer with a Shore A hardness between 40 and 70.

[0011] The wall thickness of the material is chosen to achieve an optimal compromise between flexibility and damping effect.

[0012] The damping ring can be formed in one piece and has a central opening for receiving the Schuko plug.

Claims

[1] (Main claim): Charging plug damping ring for an airbox of an emergency vehicle with external power supply, characterized by that the charging plug damping ring is ring-shaped, that it can be fitted onto a standard Schuko plug, that it is made of an elastic, chemically resistant and saltwater-resistant material, and that its elasticity is designed to absorb impact energies generated during the automatic ejection of the plug and prevent damage to the vehicle or adjacent objects. [2] (Subclaim): Charging plug damping ring according to claim 1, characterized by , that the damping ring has a cylindrical basic shape with a central through-opening has an inner diameter that is adapted to the outer diameter of the Schuko plug. [3] (Subclaim): Charging plug damping ring according to one of the preceding claims, characterized by , that the damping ring has an axial height of approximately 22 to 23 mm, an outer diameter of approximately 120 mm and an inner diameter of approximately 60 mm. [4] (Subclaim): Charging plug damping ring according to one of the preceding claims, characterized by that the damping ring is made of an elastomer with a Shore A hardness between 40 and 70. [5] (Subclaim): Charging plug damping ring according to one of the preceding claims, characterized by that the damping ring is manufactured in one piece and has a smooth outer surface for easy cleaning and to prevent dirt from adhering to it.

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