An antibacterial and deodorizing component for automotive air conditioning filters

CN224427055UActive Publication Date: 2026-06-30CHANGZHOU LIYANG JIAOYAN AUTOMOBILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU LIYANG JIAOYAN AUTOMOBILE TECHNOLOGY CO LTD
Filing Date
2025-09-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing automotive air conditioning systems, microorganisms proliferate in the alternating hot and cold environment of the evaporator, leading to odors and health risks. Furthermore, existing purification devices are complex in structure, expensive, require external power, and have limited antibacterial effects.

Method used

A triangular prism-shaped shell is designed to be inserted into the gaps between the pleats of the filter element. It contains antibacterial agents and reactants. The antibacterial agent is released through the vent holes. The antibacterial and deodorizing effects are achieved by using chlorine dioxide to generate a reaction. The release rate is controlled by non-woven fabric, and the snap-fit ​​components are easy to install.

Benefits of technology

It achieves a simple installation and continuous antibacterial and deodorizing function, improves the air quality inside the vehicle, inhibits the growth of microorganisms and eliminates odors, and avoids complex structures and high costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an antibacterial and deodorizing component for automotive air conditioning filters, comprising: a triangular prism-shaped shell, wherein a receiving cavity is formed inside the triangular prism-shaped shell, the receiving cavity being suitable for filling with an antibacterial agent, and at least one vent hole is provided on the surface of the triangular prism-shaped shell, the vent hole being covered by a breathable covering layer; wherein, the cross-sectional shape of the triangular prism-shaped shell is adapted to the pleats of the filter element, and the triangular prism-shaped shell is suitable for insertion into the pleats of the filter element. This utility model can effectively inhibit the growth of microorganisms and eliminate odors, and is easy to install and replace.
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Description

Technical Field

[0001] This utility model relates to an antibacterial and deodorizing component for automotive air conditioning filters. Background Technology

[0002] Currently, during the operation of automotive air conditioning systems, the humid environment created by the alternating hot and cold temperatures on the evaporator surface easily becomes a breeding ground for bacteria, fungi, and other microorganisms. The proliferation of these microorganisms not only produces unpleasant odors and affects the air quality inside the vehicle, but may also induce respiratory diseases and allergy symptoms in passengers.

[0003] After searching the existing technology, it was found that Chinese patent CN207607329U discloses an automotive air purification filter, which uses a multi-layer composite filter structure in conjunction with a negative ion generator to purify the air inside the car. Although it can filter particulate matter and generate negative ions, the device has a complex structure, high cost, and requires an external power supply. It also has limited effect on inhibiting microorganisms inside the air conditioning unit. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an antibacterial and deodorizing component for automotive air conditioning filters. It can effectively inhibit the growth of microorganisms and eliminate odors, and is easy to install and replace.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an antibacterial and deodorizing component for automotive air conditioning filters, comprising:

[0006] The triangular prism-shaped shell has an internal cavity that is suitable for filling with an antibacterial agent. The surface of the triangular prism-shaped shell is provided with at least one vent hole, which is covered with a breathable covering layer.

[0007] The cross-sectional shape of the triangular prism shell is adapted to the pleats of the filter element, and the triangular prism shell is suitable for insertion into the pleats of the filter element.

[0008] Furthermore, in order to facilitate the fixing of the triangular prism shell onto the filter element, at least one edge of the triangular prism shell extends outward to form a snap-fit ​​portion. The snap-fit ​​portion includes an elastic clamping arm, which together with the side wall of the triangular prism shell forms a U-shaped groove with an opening facing downward. The U-shaped groove is suitable for clamping the pleated top of the filter element.

[0009] Furthermore, the material type of the breathable covering layer is specified, wherein the breathable covering layer is a non-woven fabric material.

[0010] Furthermore, the location of the vent holes is defined, and the vent holes are located on both ends of the triangular prism shell along its length.

[0011] Furthermore, the specific type of antibacterial agent is specified, and the antibacterial agent is a chlorine dioxide sustained-release preparation.

[0012] Furthermore, the antibacterial and deodorizing component for automotive air conditioning filters also includes a reactant sealing container, which is disposed within the receiving cavity;

[0013] The cavity is filled with a first reactant, and the sealed container for the reactant contains a second reactant. The sealed container is designed to allow the first reactant to come into contact with the second reactant after being broken, thereby generating an antibacterial agent.

[0014] Furthermore, the material structure of the reactant sealing container is specified, wherein the reactant sealing container is a glass sealing tube.

[0015] Furthermore, a long-term storage method for the antibacterial agent is provided. The antibacterial and deodorizing component for automotive air conditioning filters also includes an antibacterial agent sealing tube, which is disposed within the receiving cavity.

[0016] The antibacterial agent is contained inside the sealed tube.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] During operation, the triangular prism-shaped housing, with its cross-sectional shape adapted to the gaps in the filter element's pleats, can be directly inserted into the gaps in the filter element for fixed installation. The antibacterial agent filled in the cavity is released outward through the vent holes on the surface of the triangular prism-shaped housing. The ventilated covering layer controls the release rate of the antibacterial agent, allowing it to diffuse into the interior space of the air conditioning unit at an appropriate concentration. Inside the air conditioning unit, the antibacterial agent decomposes odor molecules and kills bacteria, mold, and other microorganisms, thereby solving the problem of microbial growth and odor generation caused by the alternating hot and cold environment of the evaporator in existing technologies. This achieves continuous antibacterial and deodorizing functions, improving the air quality inside the vehicle.

[0019] In addition, the snap-fit ​​part clamps the filter element at the top of the pleats through the U-shaped slot formed by the elastic clamping arm and the side wall of the triangular prism shell, realizing the quick fixing and disassembly of the component and the filter element; the non-woven fabric material, as a breathable covering layer, has an appropriate porosity, which allows gas molecules to pass through while preventing the antibacterial agent from leaking; the antibacterial agent sealing tube isolates the antibacterial agent from the external environment, ensuring the activity of the antibacterial agent before use.

[0020] In summary, this utility model achieves convenient installation through the cooperation between the triangular prism-shaped shell and the gap of the filter element pleats, achieves controlled release of antibacterial agents through the cooperation of vent holes and ventilated covering layers, and achieves inhibition of microorganisms and elimination of odors in the air conditioning unit through the continuous action of the antibacterial agents contained in the cavity. It provides a simple, easy-to-install, and long-lasting antibacterial and deodorizing solution for automotive air conditioning systems. Attached Figure Description

[0021] Figure 1 This is a schematic diagram showing the structure of the antibacterial and deodorizing component for automotive air conditioning filters in use according to this utility model.

[0022] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0023] Figure 3 This is a three-dimensional structural diagram of the antibacterial and deodorizing component for automotive air conditioning filters according to this utility model. Detailed Implementation

[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0025] Example 1: As Figure 1-3 As shown, an antibacterial and deodorizing component for automotive air conditioning filters includes:

[0026] The triangular prism shell 1 has an internal cavity that is suitable for filling with an antibacterial agent. The surface of the triangular prism shell 1 is provided with at least one vent hole, which is covered with a breathable covering layer 3.

[0027] The triangular prism shell 1 has a cross-sectional shape that matches the pleats of the filter element, and the triangular prism shell 1 is suitable for insertion into the pleats of the filter element.

[0028] In this embodiment, as Figure 1-3 As shown, during operation, the triangular prism-shaped housing 1, with its cross-sectional shape adapted to the gaps in the filter element's pleats, can be directly inserted into the gaps in the filter element for fixed installation. The antibacterial agent filled in the cavity is released outward through the vent holes on the surface of the triangular prism-shaped housing 1. The ventilated covering layer 3 controls the release rate of the antibacterial agent, allowing it to diffuse into the interior space of the air conditioning unit at an appropriate concentration. The antibacterial agent decomposes odor molecules and kills bacteria, mold, and other microorganisms in the air conditioning unit, thereby solving the problem of microbial growth and odor generation caused by the alternating hot and cold environment of the evaporator in the existing technology. It achieves continuous antibacterial and deodorizing functions and improves the air quality inside the vehicle.

[0029] Specifically, such as Figure 1-3As shown, at least one edge of the triangular prism shell 1 extends outward to form a snap-fit ​​portion 2. The snap-fit ​​portion 2 includes an elastic clamping arm. The elastic clamping arm and the side wall of the triangular prism shell 1 together form a U-shaped slot with an opening facing downward. The U-shaped slot is suitable for clamping the pleated top of the filter element.

[0030] In this embodiment, as Figure 1-2 As shown, the elastic clamping arm undergoes elastic deformation during clamping, causing the inner wall of the U-shaped slot to fit against the top of the filter element pleats, thereby fixing the triangular prism shell 1 on the filter element and preventing the triangular prism shell 1 from falling off due to vibration or airflow impact during the operation of the air conditioning system.

[0031] When installation is required, the user aligns the triangular prism housing 1 with the pleats of the filter element, inserts the lower part of the triangular prism housing 1 into the pleats, and simultaneously aligns the U-shaped groove of the locking part 2 with the top of the pleats. By pressing, the elastic clamping arm opens and passes over the top of the pleats before springing back, and the U-shaped groove clamps the top of the pleats to complete the fixation. To disassemble, pull outward to open the elastic clamping arm again, the U-shaped groove disengages from the top of the pleats, and the triangular prism housing 1 can be removed from the filter element.

[0032] Specifically, such as Figure 2 As shown, the breathable covering layer 3 is made of non-woven fabric.

[0033] In this embodiment, as Figure 2 As shown, the nonwoven fabric material covers the surface of the breathable pores. The pores formed by its fiber structure allow gas molecules to pass through while preventing the direct release of antibacterial agent particles, thus controlling the release rate of the antibacterial agent. In other embodiments, the breathable covering layer 3 can also be a microporous film or breathable paper material.

[0034] Specifically, such as Figure 1-3 As shown, the vent holes are located on both ends of the triangular prism shell 1 along its length.

[0035] In this embodiment, as Figure 1-3 As shown, the vent is a triangular opening, which allows the antibacterial agent in the cavity to be released outward from both ends simultaneously. In other embodiments, the vent can also be set on the side of the triangular prism shell 1, or multiple vents with smaller diameters can be set on the end face.

[0036] Specifically, the antibacterial and deodorizing component for automotive air conditioning filters also includes a reactant sealing container, which is disposed within the receiving cavity;

[0037] The container is filled with a first reactant, and a second reactant is sealed inside the reactant container. The reactant container is designed to be broken so that the first reactant and the second reactant come into contact to generate an antibacterial agent.

[0038] Specifically, the reactant is sealed in a glass tube.

[0039] In this embodiment, as Figure 1-3 As shown, the triangular prism shell 1 is made of flexible plastic material, giving it a certain degree of bendability. When an external force is applied, the triangular prism shell 1 can undergo elastic deformation, which is transmitted to the internal reactant sealing container, causing the reactant sealing container to break under stress. The triangular prism shell 1 can return to its original shape after bending, without affecting its fixation within the gaps of the filter element pleats.

[0040] The glass tube wall of the sealed container of the reactant is subjected to bending stress when the triangular prism shell 1 is bent and deformed. When the bending angle reaches a certain degree, the glass tube cracks and breaks at the stress concentration point. The second reactant flows out from the broken point and enters the containment cavity to mix with the first reactant.

[0041] The first reactant can be a sodium chlorite solution, filling the cavity space surrounding the sealed container of the reactant. The second reactant can be a hydrochloric acid solution, encapsulated inside the sealed container of the reactant. In use, the sealed container of the reactant is broken by squeezing or bending the triangular prism shell 1, allowing the second reactant to flow out and come into contact with the first reactant. The two reactants react chemically to generate chlorine dioxide gas, which is continuously released through the vent. In some embodiments, the first reactant can also be sodium chlorite solid particles, and the second reactant can also be a citric acid solution.

[0042] During storage and transportation, a removable sealing patch made of plastic film is installed at the vent to prevent premature release of the antibacterial agent during storage. Before use, the user removes the sealing patch to expose the vent and non-woven fabric material. The triangular prism shell 1 is placed inside a rigid packaging box during packaging to prevent accidental breakage of the reactant container due to compression or deformation during transportation.

[0043] The reaction of sodium chlorite with hydrochloric acid to produce chlorine dioxide is an existing chemical reaction technology used in water treatment, food preservation, and space disinfection. Sodium chlorite exists as a stable solid or solution, while hydrochloric acid provides the acidic environment to trigger the reaction. After mixing, chlorine dioxide is produced, and the reaction byproducts, sodium chloride and water, are harmless to humans.

[0044] In operation, by controlling the volume of the containment chamber, the breathability of the non-woven fabric material, and the size of the vents, the release rate of chlorine dioxide is kept at a low level, posing no harm to the human body. During replacement, at the air conditioning filter location, which is isolated from the passenger compartment by the air conditioning duct and the filter, the user only briefly touches the component housing during installation and removal, without directly contacting the internal antibacterial agent. In the reaction-generative scheme, the byproducts of the reaction between sodium chlorite and hydrochloric acid are mainly sodium chloride and water, both common and harmless substances in daily life, and will not cause environmental pollution.

[0045] Example 2: This example is basically the same as Example 1, except that:

[0046] Specifically, the antibacterial agent is a slow-release formulation of chlorine dioxide.

[0047] Specifically, the antibacterial and deodorizing components used in automotive air conditioning filters also include an antibacterial agent sealing tube, which is disposed within the receiving cavity;

[0048] The antibacterial agent is contained inside the sealed tube.

[0049] In this embodiment, as Figure 2 As shown, the sealed tube can maintain the activity of the antibacterial agent for a long time when it is not opened. After opening, the antibacterial agent is dispersed in the containing cavity, and the release rate is controlled by the vent holes and non-woven fabric material. In this embodiment, the antibacterial agent is chlorine dioxide slow-release granules, and the antibacterial agent sealed tube can be in the form of a fragile glass bottle, which releases the chlorine dioxide slow-release preparation inside by breaking it.

[0050] In some embodiments, the antibacterial seal tube may also be a ruptureable capsule.

[0051] In this embodiment, the chlorine dioxide sustained-release preparation is a commonly used disinfectant and antibacterial material in the prior art. The chlorine dioxide sustained-release preparation includes various forms such as chlorine dioxide sustained-release granules, chlorine dioxide sustained-release tablets, and chlorine dioxide gel. The release period can be adjusted according to the carrier material and the formula, ranging from several days to several months.

[0052] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bacteriostatic and deodorizing assembly for an automobile air conditioner filter element, characterized by, include: A triangular prism shell (1) has an internal cavity for filling with an antibacterial agent. At least one vent is provided on the surface of the triangular prism shell (1), and the vent is covered with a breathable covering layer (3). The cross-sectional shape of the triangular prism shell (1) is adapted to the pleat gap of the filter element, and the triangular prism shell (1) is suitable for insertion into the pleat gap of the filter element.

2. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: At least one edge of the triangular prism shell (1) extends outward to form a snap-fit ​​portion (2), the snap-fit ​​portion (2) includes an elastic clamping arm, the elastic clamping arm and the side wall of the triangular prism shell (1) together form a U-shaped slot with an opening facing downward, the U-shaped slot being adapted to clamp the pleated top of the filter element.

3. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: The breathable covering layer (3) is made of non-woven fabric.

4. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: The vent holes are located on both ends of the triangular prism shell (1) along its length.

5. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: The antibacterial agent is a chlorine dioxide sustained-release formulation.

6. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: It also includes a reactant sealing container, which is disposed within the receiving cavity; The cavity is filled with a first reactant, and the sealed container for the reactant contains a second reactant. The sealed container is designed to allow the first reactant to come into contact with the second reactant after being broken, thereby generating an antibacterial agent.

7. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 6, characterized in that: The reactant is sealed in a glass tube.

8. The antibacterial and deodorizing component for automotive air conditioning filters according to claim 1, characterized in that: It also includes an antibacterial agent sealing tube, which is disposed within the receiving cavity; The antibacterial agent is contained inside the sealed tube.