Flow-guiding air conditioning filter for automotive internal heat circulation

Abstract

The invention discloses a flow-guiding air conditioning filter for use in a heat cycle in an automobile, and belongs to the technical field of automobile air conditioning filters. The invention comprises a filter top box, an air inlet port is penetrated on the outer peripheral wall of the filter top box, a central rotating shaft is arranged in the middle of the inner part of the filter top box, and a pneumatic rotary filtering mechanism is sleeved on the outer periphery of the central rotating shaft; the invention can not only utilize the pressurized airflow generated by the operation of an automobile air pump to push the arc filter and its related components to passively rotate, change the flow trajectory of the airflow, and realize rotary filtering of the airflow, and in combination with its operation inside the device, effectively reduce the interference of the operation of the automobile body and the surrounding environment on it, but also facilitate the self-adaptive impurity self-weight falling discharge, pressure relief airflow impact cleaning and vertical airflow from top to bottom cleaning of the intercepted impurities, so as to effectively and quickly separate the filtered and intercepted impurities from the filtering components and maintain the long-lasting service life of the automobile air conditioning filter.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air conditioning filters, in particular to a flow-guiding air conditioning filter applied to an automobile internal heat cycle. Background Art

[0002] When the car air conditioner is turned on the internal circulation mode, the air in the car is continuously recycled. The air is blown out from the air outlet in the car, passes through the interior space, and is then sucked into the air intake of the air conditioning system, where it is cooled, heated or purified again, and then blown out again.

[0003] The flow-guiding air conditioning filter mainly guides the air flow and filters the impurities in the air through a special structural design. It is usually composed of filter material and flow-guiding structure. When the air passes through the filter, the flow-guiding structure can make the air flow evenly through the filter material, improving the filtration efficiency. The filter material can capture tiny particles such as dust, pollen, bacteria, and viruses in the air, thereby purifying the air.

[0004] In conjunction with the above content, it should be noted that: the Chinese patent with publication number CN217455581U discloses an internal and external circulation air intake mechanism for automobile air conditioners, which realizes the conversion control of internal and external circulation air intake modes through an actuator, improves the reliability of the main body operation, realizes the customer's requirement of external air intake in front of the air conditioner and internal air intake circulation at the same time, and meets the customer's new demand for replaceable and disassembled air conditioner filter core. However, during actual use, the complex external mechanical connection parts are not only affected by multiple factors such as automobile driving bumps, operating environment and mechanical life loss, but also lead to uncontrollable defects during use;

[0005] In view of the above-mentioned technical defects, a solution is now proposed. Summary of the invention

[0006] The object of the present invention is to provide a flow-conducting air conditioning filter for use in a heat cycle within an automobile to solve the problems raised.

[0007] To achieve the above object, the present invention provides the following technical solution: a flow-guiding air conditioning filter for automobile internal heat circulation, comprising a filter top box, an air inlet port is provided through the outer peripheral wall of the filter top box, a central rotating shaft is provided in the middle of the filter top box, and a pneumatic rotary filter mechanism is sleeved on the outer periphery of the central rotating shaft, the pneumatic rotary filter mechanism comprises an outer sliding ring and an arc-shaped filter disc, and a chassis is provided at the bottom of the filter top box;

[0008] A limiting opening is arranged through the center of the chassis surface, and a limiting bottom box is arranged at the bottom of the chassis. A gas gathering opening and a slag collecting groove are arranged in a depression on the top of the limiting bottom box, and an external gas valve connected to the gas gathering opening is arranged at the bottom of the limiting bottom box.

[0009] Furthermore, a plurality of groups of outer limiting columns are arranged in a circular array on the outer periphery of the filter top box, and a gas gathering nozzle is provided on the inner top wall of the filter top box, and the gas gathering nozzle is located on the slag collecting tank.

[0010] Furthermore, the outer sliding ring is symmetrically arranged in two upper and lower parts, and a central rotating cylinder sleeved with the central rotating shaft is arranged in the middle of the outer sliding ring.

[0011] Furthermore, an arc-shaped filter frame is provided between the outer sliding ring and the central rotating drum, and the arc-shaped filter discs are arranged obliquely between the arc-shaped filter frames.

[0012] Furthermore, an exhaust port close to the limiting opening is provided through the surface of the chassis, and the exhaust port is close to the central rotating shaft.

[0013] Furthermore, an arc-shaped leak is provided on the surface of the chassis in an area away from the exhaust port, and the arc-shaped leak is located above the slag collecting trough.

[0014] Furthermore, a return air port is provided on the inner wall of the gas gathering port, a slag discharge bin is provided inside the slag collecting tank, a filter screen is embedded on the outer peripheral wall of the slag discharge bin, and the limiting bottom box is provided with a through port located below the central rotating shaft.

[0015] The present invention also proposes a working method of a flow-guiding air conditioning filter using an automobile internal heat cycle, comprising the following steps:

[0016] S1: The external airflow is extracted by the automobile air pump and transported into the filter top box along the air inlet. The external airflow is guided from the air inlet into one side of the pneumatic rotary filter mechanism;

[0017] S2: Under the action of the air pump to increase the external airflow, two adjacent arc-shaped filter frames form an arc-shaped filter cavity, and the arc-shaped filter discs are arranged in the arc-shaped filter cavity from large to small and from outside to inside. The external airflow under the pressure first contacts the larger arc-shaped filter discs inside and outside the arc-shaped filter cavity, and then penetrates the remaining arc-shaped filter discs in turn, so that the external airflow fills the group of arc-shaped filter cavities.

[0018] S3: When a single group of arc filter chambers is filled, the gas continuously injected pushes the group of arc filter chambers, and the group of arc filter chambers deflects counterclockwise with the central axis as the central axis through the central rotating cylinder, so that the next group of arc filter chambers are alternately connected with the air inlet port, until the next group of arc filter chambers is filled, and then the next group of arc filter chambers are continuously driven to alternately reach this position, so that the overall pneumatic rotary filter mechanism rotates inside the filter top box;

[0019] S4: When a single group of arc filter chambers rotates close to the exhaust port under the impetus of airflow, the gas inside the group of arc filter chambers close to the exhaust port is pushed into the exhaust port, so that the gas pushed by the arc filter chambers during the rotation penetrates through multiple groups of arc filter sheets, enters the external air valve along the exhaust port, and is then guided by the external air valve into the air conditioning system of the car. It should be noted that: the outer area of ​​the arc filter frame is provided with interconnected holes, and the inner frame of the arc filter frame is a plate sealing connection structure;

[0020] S5: When a single group of arc filter chambers is away from the exhaust port and close to the arc leakage port, the loose impurities attached to the surface of the arc filter disc are directly dropped due to the shape of the arc leakage port, and pass through the arc leakage port and enter the slag collecting tank. In this process, part of the airflow that enters the outer area of ​​the arc filter chamber along the hole is disturbed by the pressure increase, causing some impurities that are not easy to loosen to be separated;

[0021] Part of the airflow entering the exhaust port enters the return port. A pipe connected to the air gathering nozzle is provided inside the return port, and part of the filtered airflow is guided to be ejected from the air gathering nozzle, forming a top-down jet airflow above the arc leakage port, so that impurities in the arc filter cavity passing through the arc leakage port area are caused to fall off under the impact of the vertical downward airflow.

[0022] S6: The impurities and airflow entering the slag collecting tank are affected by the subsequent continuous injection of airflow boost, which causes the air pressure inside the slag collecting tank to increase, and the filter on the outer wall of the slag discharge bin filters, intercepts and relieves the pressure on the air inside the slag collecting tank, forming a fixed flow trajectory, which causes larger particles to be intercepted, while smaller particles of dust are guided along the outside of the filter to the discharge channel set on the vehicle body, which intercepts larger impurities and effectively prevents larger impurities from clogging the discharge channel on the vehicle body, while facilitating regular cleaning.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention utilizes a pneumatic rotary filter mechanism in conjunction with a filter top box, utilizes the pressurized airflow generated by the operation of the automobile air pump to push the arc filter and its related components to passively rotate, and through the cooperation between related structures, changes the flow trajectory of the airflow to achieve rotary filtration of the airflow, and combines its operation inside the device to effectively reduce the interference of the operation of the automobile body and the surrounding environment on it;

[0025] 2. The present invention uses a chassis and a limit chassis in conjunction with a pneumatic rotary filter mechanism, which facilitates the adaptive self-weight discharge of intercepted impurities, the impact cleaning of pressure relief airflow, and the top-down spray cleaning of vertical airflow, so that the impurities intercepted by the filter can be effectively and quickly separated from the filter components, thereby maintaining the long-term service life of the automobile air-conditioning filter, reducing the replacement frequency and cost, and the top-down clip-on installation method is faster than the traditional shell-opening replacement of filter components and the disassembly of multiple external mechanical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0027] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0028] Figure 2 It is a bottom view structural schematic diagram of the filter top box of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the filter top box of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure expansion of the pneumatic rotary filtering mechanism and the chassis of the present invention;

[0031] Figure 5 It is a schematic diagram of the connection structure between the chassis and the limiting bottom box of the present invention;

[0032] Figure 6 It is a bottom view structural schematic diagram of the position-limiting bottom box of the present invention;

[0033] Figure 7 It is a schematic diagram showing the internal airflow trajectory of the present invention.

[0034] Figure numerals: 1. filter top box; 101. outer limiting column; 102. air inlet; 103. air gathering nozzle; 2. limiting bottom box; 201. slag discharge bin; 202. air gathering port; 203. air return port; 204. slag collecting trough; 205. external air valve; 206. through port; 207. filter screen; 3. pneumatic rotary filter mechanism; 301. outer slip ring; 302. arc filter disc; 303. arc filter frame; 304. central rotating drum; 4. chassis; 401. exhaust port; 402. limiting port; 403. arc leakage port; 5. central rotating shaft. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1: This embodiment is used to solve the problem that during actual use, complex external mechanical connection components are not only affected by multiple factors such as vehicle driving bumps, operating environment and mechanical life loss, but also cause uncontrollable defects during use.

[0037] See also Figure 1 - Figure 5 As shown, this embodiment is a flow-guiding air conditioning filter for applying heat circulation in an automobile, comprising a filter top box 1, an air inlet port 102 is provided through the outer peripheral wall of the filter top box 1, a central rotating shaft 5 is provided in the middle of the inner part of the filter top box 1, and a pneumatic rotary filter mechanism 3 is sleeved on the outer periphery of the central rotating shaft 5, the pneumatic rotary filter mechanism 3 comprises an outer slip ring 301 and an arc filter disc 302, a chassis 4 is provided at the bottom of the filter top box 1, the external airflow or the hot air extracted by the internal circulation of the automobile is extracted through the automobile air pump, and transported into the interior of the filter top box 1 along the air inlet port 102, and the external airflow is guided by the air inlet port 102 to be poured into one side of the pneumatic rotary filter mechanism 3;

[0038] A plurality of groups of outer limiting cylinders 101 are arranged in a circular array on the periphery of the filter top box 1, and a gas gathering nozzle 103 is arranged on the inner top wall of the filter top box 1, and the gas gathering nozzle 103 is located on the slag collecting tank 204, and part of the airflow entering the exhaust port 401 enters the return air port 203, and a pipe connected to the gas gathering nozzle 103 is arranged inside the return air port 203, and part of the filtered airflow is guided to be ejected from the gas gathering nozzle 103, forming a top-down jet airflow above the arc leak 403, so that impurities inside the arc filter cavity passing through the arc leak 403 area are caused to fall off under the impact of the vertical downward airflow.

[0039] The outer sliding ring 301 is symmetrically arranged in two directions, and a central rotating cylinder 304 sleeved with the central rotating shaft 5 is arranged in the middle of the outer sliding ring 301 . The outer sliding ring 301 is slidably connected to the inner wall of the filter top box 1 .

[0040] An arc filter frame 303 is arranged between the outer sliding ring 301 and the central rotating cylinder 304, and the arc filter discs 302 are arranged obliquely between the arc filter frames 303. Under the action of the air pump to increase the conveying of the external airflow, two adjacent arc filter frames 303 form an arc filter cavity, and the arc filter discs 302 are arranged in the arc filter cavity from large to small and from outside to inside. The external airflow conveyed by the booster first contacts the larger arc filter discs 302 inside and outside the arc filter cavity, and penetrates the remaining arc filter discs 302 in turn, so that the external airflow fills the group of arc filter cavities.

[0041] When a single group of arc-shaped filter chambers is filled, the gas continuously injected subsequently pushes the group of arc-shaped filter chambers, and the group of arc-shaped filter chambers deflects counterclockwise with the central rotation axis 5 as the central axis through the central rotating cylinder 304, prompting the next group of arc-shaped filter chambers to alternately connect with the air inlet pipe port 102 until the next group of arc-shaped filter chambers is filled, and then continuously drives the next group of arc-shaped filter chambers to alternately reach this position, prompting the overall pneumatic rotary filter mechanism 3 to rotate inside the filter top box 1.

[0042] Embodiment 2: This embodiment is a flow-guiding air conditioning filter for automobile internal heat circulation, including a limited position opening 402 penetrating through the center of the surface of the chassis 4, and a limited position bottom box 2 is provided at the bottom of the chassis 4, and a gas gathering opening 202 and a slag collecting groove 204 are recessed at the top of the limited position bottom box 2, and an external gas valve 205 connected to the gas gathering opening 202 is provided at the bottom of the limited position bottom box 2;

[0043] The surface of the chassis 4 is provided with an exhaust port 401 close to the limit port 402, and the exhaust port 401 is close to the central rotating shaft 5. When a single group of arc filter chambers rotates close to the exhaust port 401 under the impetus of the airflow, the gas inside the group of arc filter chambers close to the exhaust port 401 is pushed into the exhaust port 401, so that the gas pushed by the arc filter chambers during the rotation is continuously pressurized and penetrates through the multiple groups of arc filter discs 302, and then enters the external air valve 205 along the exhaust port 401, and then is guided by the external air valve 205 into the air conditioning system of the automobile. It should be noted that: the outer area of ​​the arc filter frame 303 is provided with interconnected holes, and the inner frame of the arc filter frame 303 is a plate sealing connection structure;

[0044] An arc-shaped leak 403 is provided in the area of ​​the surface of the chassis 4 far from the exhaust port 401, and the arc-shaped leak 403 is located above the slag collecting tank 204. When a single group of arc-shaped filter chambers is far from the exhaust port 401 and close to the arc-shaped leak 403, the shape of the arc-shaped leak 403 causes loose impurities attached to the surface of the arc-shaped filter disc 302 to fall directly, pass through the arc-shaped leak 403 and enter the slag collecting tank 204. In this process, part of the airflow that enters the outer area of ​​the arc-shaped filter chamber along the hole causes some impurities that are not easy to loosen to be separated under the interference of the pressurization.

[0045] An air return port 203 is provided on the inner wall of the air gathering port 202, a slag discharge bin 201 is provided inside the slag collecting tank 204, a filter screen 207 is embedded on the outer peripheral wall of the slag discharge bin 201, and the limiting bottom box 2 is provided with a through port 206 located below the central rotating shaft 5. The impurities and airflow entering the slag collecting tank 204 are affected by the subsequent continuous injection of airflow pressurization, which causes the air pressure inside the slag collecting tank 204 to increase, and the filter screen 207 on the outer wall of the slag discharge bin 201 filters, intercepts and relieves the pressure on the air inside the slag collecting tank 204, forming a shaped flow trajectory, which causes larger particles to be intercepted, and smaller particles and dust are guided along the outer side of the filter screen 207 to the discharge channel provided on the vehicle body, which intercepts larger impurities, effectively avoiding the blockage of the discharge channel on the vehicle body by larger impurities, and at the same time facilitates regular cleaning thereof.

[0046] Combining the first and second embodiments, it can be known that the pneumatic rotary filter mechanism 3 can be used in conjunction with the filter top box 1, and the pressurized airflow generated by the operation of the automobile air pump can be used to promote the passive rotation of the arc filter 302 and its related components, and through the cooperation between the related structures, the flow trajectory of the airflow is changed to achieve rotary filtration of the airflow. Combined with its operation inside the device, it can effectively reduce the interference of the operation of the automobile body and the surrounding environment on it, and it can also facilitate the adaptive impurity self-weight discharge, pressure relief airflow impact cleaning and vertical airflow from top to bottom cleaning of the intercepted impurities, so as to promote the effective and quick separation of the filtered and intercepted impurities from the filter components, maintain the long-term service life of the automobile air conditioning filter, reduce the replacement frequency and cost, and the top-down snap-on installation method is faster than the traditional shell removal to replace the filter components and the external multiple mechanical components.

[0047] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A flow-guiding air conditioning filter for automobile internal heat circulation, comprising a filter top box (1), wherein an air intake port (102) is provided through the outer peripheral wall of the filter top box (1), and the filter top box (1) is characterized in that: A central rotating shaft (5) is arranged in the middle of the filter top box (1), and a pneumatic rotary filter mechanism (3) is sleeved on the outer periphery of the central rotating shaft (5), the pneumatic rotary filter mechanism (3) comprising an outer sliding ring (301) and an arc-shaped filter disc (302), and a bottom plate (4) is arranged at the bottom of the filter top box (1); A limiting opening (402) is provided through the center of the surface of the chassis (4), and a limiting bottom box (2) is provided at the bottom of the chassis (4); a gas gathering opening (202) and a slag collecting groove (204) are provided in a recessed manner at the top of the limiting bottom box (2), and an external gas valve (205) connected to the gas gathering opening (202) is provided at the bottom of the limiting bottom box (2); A gas gathering nozzle (103) is provided on the inner top wall of the filter top box (1), and the gas gathering nozzle (103) is located on the slag collecting tank (204); The outer sliding ring (301) is symmetrically arranged in two parts, and a central rotating cylinder (304) sleeved with the central rotating shaft (5) is arranged in the middle of the outer sliding ring (301); An arc-shaped filter frame (303) is provided between the outer sliding ring (301) and the central rotating cylinder (304); the arc-shaped filter discs (302) are arranged obliquely between the arc-shaped filter frames (303); and two adjacent arc-shaped filter frames (303) form an arc-shaped filter cavity; The surface of the chassis (4) is provided with an exhaust port (401) close to the limiting port (402), and the exhaust port (401) is close to the central rotating shaft (5); An arc-shaped leak (403) is provided in an area of ​​the surface of the chassis (4) away from the exhaust port (401), and the arc-shaped leak (403) is located above the slag collecting tank (204). An air return port (203) is provided on the inner wall of the air gathering port (202), and a pipe connected to the air gathering nozzle (103) is provided inside the air return port (203).

2. The flow-conducting air conditioning filter for automobile internal heat circulation according to claim 1, characterized in that: A plurality of groups of outer limiting cylinders (101) are arranged in an annular array on the outer periphery of the filter top box (1).

3. The flow-conducting air conditioning filter for automobile internal heat circulation according to claim 1, characterized in that: A slag discharge bin (201) is provided inside the slag collecting trough (204), a filter screen (207) is embedded on the outer peripheral wall of the slag discharge bin (201), and the position limiting bottom box (2) is provided with a through opening (206) located below the central rotating shaft (5).

4. A working method of a flow-guiding air conditioning filter using an automobile internal heat cycle, used for the flow-guiding air conditioning filter using an automobile internal heat cycle as claimed in any one of claims 1 to 3, characterized in that: The following steps are included S1: External air flow is drawn in through an automobile air pump and transported along an air inlet pipe opening (102) into the interior of the filter top box (1), and the external air flow is guided by the air inlet pipe opening (102) into one side of the pneumatic rotary filter mechanism (3); S2: Under the action of the air pump to increase the external airflow, the external airflow under the pressure first contacts the larger arc filter discs (302) inside and outside the arc filter cavity, and then penetrates the remaining arc filter discs (302) in sequence; S3: When a single group of arc-shaped filter cavities is filled, the gas continuously injected pushes the group of arc-shaped filter cavities, and the group of arc-shaped filter cavities deflects counterclockwise with the central rotating shaft (5) as the central axis through the central rotating cylinder (304), and the overall pneumatic rotary filter mechanism (3) performs a rotary motion inside the filter top box (1); S4: When a single group of arc-shaped filter chambers rotates close to the exhaust port (401) under the impetus of the airflow, the gas inside the group of arc-shaped filter chambers close to the exhaust port (401) is pushed into the exhaust port (401), enters the external air valve (205) along the exhaust port (401), and is then guided by the external air valve (205) into the interior of the air conditioning system of the automobile; S5: When the single group of arc-shaped filter chambers is away from the exhaust port (401) and close to the arc-shaped leakage port (403), loose impurities attached to the surface of the arc-shaped filter plate (302) fall directly, and the outer area of ​​the arc-shaped filter frame (303) is provided with interconnected holes, and part of the airflow entering the outer area of ​​the arc-shaped filter chamber along the holes promotes the separation of some impurities that are not easy to loosen; Part of the airflow entering the exhaust port (401) enters the air return port (203), and part of the filtered airflow is guided to be ejected from the air gathering nozzle (103), forming a top-down jet airflow above the arc-shaped leak (403), thereby causing impurities in the arc-shaped filter cavity passing through the arc-shaped leak (403) to fall off under the impact of the vertically downward airflow; S6: The impurities and airflow entering the slag collecting tank (204) are pressurized by the airflow that is subsequently continuously injected, causing the air pressure inside the slag collecting tank (204) to increase, while the filter screen (207) on the outer wall of the slag discharge bin (201) filters, intercepts and releases the air inside the slag collecting tank (204), thereby forming a fixed flow trajectory.

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