Waterproof breathable film structure for automobile cooling fan controller

Abstract

The utility model relates to a structure of an automobile cooling fan controller. A waterproof and breathable film structure for an automobile cooling fan controller comprises a waterproof and breathable protrusion arranged on a controller cover plate, a coaxial water blocking ring is arranged on the outer ring of the waterproof and breathable protrusion, at least two breathable gaps are formed in the waterproof and breathable protrusion, and a waterproof and breathable film is installed on the bottom face of the waterproof and breathable protrusion. The utility model provides the waterproof breathable film structure for the automobile cooling fan controller, which is convenient to install, can meet the IP6K9K requirement, is compact in size, and ensures the normal operation of the fan motor controller; the technical problems that in the prior art, a waterproof breathable film of a cooling fan controller cannot meet related requirements, installation of the waterproof breathable film is inconvenient, and the number of installation size limitations is large are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of structure of automobile cooling fan controller, in particular to a kind of waterproof and breathable membrane structure for automobile cooling fan controller. BACKGROUND

[0002] Automobile cooling fan is an important component in automobile engine cooling / whole vehicle thermal management system, its role is to discharge hot air after cooling liquid is cooled by radiator, keep engine / motor, battery, electronic control system etc. Temperature in suitable range, avoid the case that engine / motor, battery, electronic control system etc. Damage due to overheating. Automobile fan has important significance for guaranteeing the safety, reliability and stability of vehicle driving.

[0003] Automobile cooling fan motor controller works in harsh environment, high temperature, high humidity, oil dirt, dust, need to be sealed to ensure that internal electronic devices of controller work normally. According to ideal gas equation calculation, the internal air pressure of sealed controller can reach 696mbar when the internal temperature of controller rises from-40℃ to 120℃. Conversely, if the internal temperature of controller reduces from 120℃ to-40℃, the internal air pressure of sealed controller can reach-696mbar, and external water vapor can enter the internal controller. Excessive internal pressure or alternating internal pressure generated by temperature change can cause damage to controller electronic components or sealing failure, resulting in cooling fan cannot work normally. Therefore, fan motor controller needs to install waterproof and breathable membrane or waterproof and breathable valve product to balance internal pressure. For sheet metal controller shell, waterproof and breathable membrane with back adhesive is the reason why most people choose because it is easy to install and cheap. However, in order to meet the IP6K9K requirements of automobile fan motor controller, the protective features of waterproof and breathable membrane on the shell need to be specially designed to prevent high-pressure water flow from directly impacting and damaging the waterproof and breathable membrane. SUMMARY

[0004] The utility model provides a kind of automobile cooling fan controller waterproof and breathable membrane structure of convenient installation, can satisfy IP6K9K requirements, compact size, ensure that fan motor controller works normally;It solves the technical problems that waterproof and breathable membrane of cooling fan controller in prior art cannot meet relevant requirements, waterproof and breathable membrane is inconvenient to install, and installation size is limited more.

[0005] The technical problem of the automobile cooling fan controller waterproof and breathable membrane structure is solved through the following technical scheme: a waterproof and breathable membrane structure for an automobile cooling fan controller, waterproof and breathable protrusions are arranged on a controller cover plate, coaxial water blocking rings are arranged on the outer rings of the waterproof and breathable protrusions, at least two breathable gaps are arranged on the waterproof and breathable protrusions, and waterproof and breathable membranes are arranged on the bottom surfaces of the waterproof and breathable protrusions.

[0006] Preferably, the waterproof and breathable protrusions are three cylinders, the three cylinders are spliced together at one end, and the one end of the three cylinders is provided with the breathable gap.

[0007] Preferably, the waterproof and breathable protrusions are four cylinders, the four cylinders are arranged in a cross shape, and the one end of the four cylinders is provided with the breathable gap.

[0008] Preferably, the height of the water blocking ring is greater than the height of the waterproof and breathable protrusion. The water blocking effect is good, and the stability is high.

[0009] Preferably, the bottom of the waterproof and breathable protrusion is a circular concave surface, a circular waterproof and breathable membrane mounting surface is formed on the outer side of the circular concave surface, and the diameter of the waterproof and breathable membrane is greater than the diameter of the circular concave surface of the waterproof and breathable protrusion. The bottom surface of the waterproof and breathable protrusion is recessed due to the protrusion, the recessed surface is circular, a circular mounting surface for mounting the waterproof and breathable membrane is formed on the outer side of the recessed surface, the circular waterproof and breathable membrane is conveniently mounted, and the position accuracy requirement when the waterproof and breathable membrane is pasted is reduced.

[0010] Therefore, the automobile cooling fan controller waterproof and breathable membrane structure has the following advantages: the waterproof and breathable protrusions are formed by stamping and are provided with waterproof and breathable gaps, air can flow into and out of the controller conveniently; the outer envelope of the inner recess formed by stamping is circular, the size is compact, and the waterproof and breathable membrane is conveniently pasted; the water blocking ring is arranged around the waterproof and breathable protrusion, the outer envelope of the inner recess formed by stamping is circular, and the size is compact. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a perspective view of a waterproof and breathable membrane structure for an automobile cooling fan controller.

[0012] Figure 2 It is Figure 1An enlarged view of the waterproof and breathable protrusion.

[0013] Figure 3 is Figure 2 Another perspective view of the waterproof and breathable protrusion.

[0014] Figure 4 is Figure 3 A perspective view of the waterproof and breathable protrusion without the waterproof and breathable film.

[0015] Figure 5 An enlarged view of the waterproof and breathable protrusion of Example 2. DETAILED DESCRIPTION

[0016] The technical solutions of the utility model will be further specifically explained below by means of examples and in combination with the drawings.

[0017] Example 1:

[0018] As Figure 1 and 2 and 3 and 4, a waterproof and breathable film structure for an automobile cooling fan controller comprises a waterproof and breathable protrusion 1 integrally formed with a sheet metal controller shell 3, the waterproof and breathable protrusion 1 is punched by a cylindrical punch die and comprises three uniformly distributed cylinders, one end of the three cylinders is spliced together, and a breathable gap 4 is formed at one end of the three cylinders. The inner concave surface 6 formed by punching has a circular outer envelope, a coaxial circular waterproof and breathable film mounting surface 7 is formed on the outer circumferential surface of the inner concave surface 6, the waterproof and breathable film 5 is circular, and the waterproof and breathable film 5 is pasted on the waterproof and breathable film mounting surface 7. The diameter of the waterproof and breathable film 5 is greater than the diameter of the circular inner concave surface 6 of the waterproof and breathable protrusion. A water blocking ring 2 is coaxially formed on the periphery of the waterproof and breathable protrusion 1. The height of the water blocking ring 2 is greater than the height of the waterproof and breathable protrusion 1.

[0019] Example 2:

[0020] As Figure 5 different from Example 1, the waterproof and breathable protrusion 1 is four cylinders, the four cylinders are arranged in a "cross" shape, and a breathable gap 4 is formed at one end of the four cylinders.

[0021] The specific embodiments described herein merely exemplify the concept of the present application. Those skilled in the art to which the present application pertains can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A waterproof and breathable membrane structure for an automotive cooling fan controller, characterized by: The waterproof and breathable convex is provided on the controller cover plate, a coaxial water blocking ring is arranged on the outer ring of the waterproof and breathable convex, at least two breathable gaps are arranged on the waterproof and breathable convex, and a waterproof and breathable film is arranged on the bottom surface of the waterproof and breathable convex.

2. A kind of waterproof and breathable membrane structure for automobile cooling fan controller according to claim 1, wherein: The waterproof and breathable convex is composed of three cylinders, and the three cylinders are spliced together at one end.

3. A kind of waterproof and breathable membrane structure for automobile cooling fan controller according to claim 1, wherein: The waterproof and breathable convex is composed of four cylinders, and the four cylinders are arranged in a cross shape.

4. A kind of waterproof and breathable membrane structure for automobile cooling fan controller according to claim 1 or 2 or 3, with the characteristics of: The height of the water blocking ring is greater than the height of the waterproof and breathable convex.

5. A kind of waterproof and breathable membrane structure for automobile cooling fan controller according to claim 1 or 2 or 3, with the characteristics of: The bottom of the waterproof and breathable convex is a circular concave surface, the outer side of the circular concave surface forms a circular waterproof and breathable film mounting surface, and the diameter of the waterproof and breathable film is greater than the diameter of the circular concave surface of the waterproof and breathable convex.

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