Self-cleaning fuel cell system air filter

Abstract

The invention discloses a self-cleaning fuel cell system air filter which comprises a shell, an overturning plate and a filter element, a positioning groove for placing the filter element is formed in the shell, the positioning groove is hollowed out, a plurality of through holes are formed in the overturning plate, one end of the overturning plate is hinged to the shell, and the overturning plate is used for opening or closing a notch of the positioning groove; an air inlet and an air outlet are formed in the shell, an air inlet channel and an air outlet channel are further arranged in the shell, one end of the air inlet channel is communicated with the air inlet, the other end of the air inlet channel is communicated with the air inlet end of the filter element, and the turnover plate is arranged close to the air inlet channel; the other end of the air outlet channel is communicated with the air outlet end of the filter element; the air inlet is opened downwards, and the horizontal length of the air inlet is matched with the horizontal length of the filter element. The filter element is convenient to disassemble for cleaning, the maintenance cost is reduced, the air inlet is matched with the filter element in size, the size of the air inlet is large, the airflow resistance is reduced, and the energy consumption of the fuel cell system is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of air filtration, and in particular relates to a self-cleaning fuel cell system air filter. Background Art

[0002] At present, the air filters of existing fuel cell systems usually adopt the barrel-type air filters of automobile fuel engines, which have small air inlet and large flow resistance, increasing the power consumption of the fuel cell system; the barrel shell is relatively sealed, and the dust accumulated during filtration needs to be removed from the filter element and cleaned manually, which has a short maintenance cycle and increases labor costs.

[0003] Therefore, a new technology is needed to solve the problem that the air inlet of the air filter in the prior art is small and it is inconvenient to clean the filter element. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present invention provides a self-cleaning fuel cell system air filter, which is convenient for removing the filter element for cleaning, reducing maintenance costs, and has a larger air inlet, reducing energy consumption.

[0005] The present invention adopts the following technical solutions:

[0006] A self-cleaning fuel cell system air filter, comprising a housing, a flip plate and a filter element, wherein a support frame for mounting the filter element is provided in the housing, an air inlet end and an air outlet end are respectively provided on two vertical and opposite sides of the filter element, the flip plate is provided with a plurality of through holes communicating with the air inlet end of the filter element, one end of the flip plate is hingedly connected to the housing, and the flip plate can clamp the filter element together with the support frame when rotating toward the support frame;

[0007] An air inlet and an air outlet are provided on the shell, and an air inlet channel and an air outlet channel are also provided in the shell. One end of the air inlet channel is connected with the air inlet, and the other end is connected with the air inlet end of the filter element through a plurality of through holes; one end of the air outlet channel is connected with the air outlet, and the other end is connected with the air outlet end of the filter element; the air inlet opens downward and is located below the air inlet end of the filter element, and the horizontal length of the air inlet is adapted to the horizontal length of the filter element.

[0008] As a further improvement of the technical solution of the present invention, the housing includes a fixing seat and a protective cover, the filter element is located between the fixing seat and the protective cover in the horizontal direction, the upper end of the protective cover is detachably fixedly connected to the fixing seat, and a gap is formed between the lower end and the fixing seat to form the air inlet, and between the protective cover and the filter element;

[0009] One side of the fixed seat is provided with a groove communicated with the air outlet. The filter element is detachably installed at the notch of the groove and can block the notch. The groove forms the air outlet channel.

[0010] The support frame and the flip plate are located between the fixed seat and the protective cover. The support frame is located on the side of the filter element close to the fixed seat, and the flip plate is located on the side of the filter element close to the protective cover.

[0011] As a further improvement of the technical solution of the present invention, the support frame is located on the side of the filter element close to the fixed seat, and both the upper and lower ends are connected to the fixed seat. The flip plate is located on the side of the filter element close to the protective cover, and the bottom end is hinged to the fixed seat, and the upper end is detachably fixedly connected to the upper end of the fixed seat.

[0012] There is a gap between the flip plate and the protective cover to form the air inlet channel.

[0013] As a further improvement of the technical solution of the present invention, the fixed seat includes a top plate, a side plate and a bottom plate connected to each other in a U shape. The side plate is vertically arranged and forms the bottom of the groove for accommodating the groove. The support frame is vertically arranged, the upper end is connected to the top plate, and the lower end is connected to the bottom plate. There is a distance between the side plate and the support frame to form the air outlet channel. The air outlet is located on the bottom plate. The bottom end of the flip plate is hinged to the bottom plate, and the upper end is detachably fixedly connected to the top plate.

[0014] As a further improvement of the technical solution of the present invention, the fixed seat further includes a first end plate and a second end plate. The top plate, the first end plate, the bottom plate and the second end plate are sequentially connected end to end. One end is tightly connected to the side plate, and the other end forms the notch of the groove. The top plate, the bottom plate, the first end plate and the second end plate are all tightly connected to the filter element.

[0015] As a further improvement of the technical solution of the present invention, the support frame includes a first frame body and a second frame body connected in an L shape from top to bottom in sequence. The first frame body is provided with a hollow. The upper end of the first frame body is fixedly connected to the top plate, and the lower end is fixedly connected to the second frame body. The second frame body is connected to the bottom plate and the upper end face is horizontally arranged. The flip plate is hinged to the end of the second frame body far away from the first frame body. The filter element is located on the second frame body and between the first frame body and the flip plate.

[0016] As a further improvement of the technical solution of the present invention, the upper end of the flip plate is connected to the top plate through a buckle.

[0017] As a further improvement of the technical solution of the present invention, the flip plate includes a main body and a frame. A plurality of the through holes are located on the main body. The vertical cross-section of the frame is in a U shape with an opening downward, and one side is fixedly connected to the side of the main body close to the filter element. When the flip plate is turned upward to clamp the filter element, the frame is located between the main body and the first frame body. The frame can be tightly connected to the two opposite vertical sides and the top surface of the filter element. The upper end surface of the frame is connected to the top plate through a buckle.

[0018] As a further improvement of the technical solution of the present invention, an air outlet pipe is provided at the air outlet.

[0019] As a further improvement of the technical solution of the present invention, both the filter element and the housing are in a cuboid shape.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] For the self-cleaning fuel cell system air filter of this solution, by rotating the flip plate away from the support frame or the filter element, the state where the flip plate and the support frame jointly clamp the filter element can be released, and the filter element can be taken out, which is convenient for removing the filter element for cleaning, reducing the maintenance cost. Moreover, the length dimension of the air inlet in the horizontal direction is adapted to the length dimension of the filter element, and the air inlet has a large size, reducing the air flow resistance and lowering the energy consumption of the fuel cell system. The air inlet end of the filter element is located above the air inlet, and the dust entrained in the air is isolated by the air filter element and is cleaned away from the surface of the air filter element during the vibration of the vehicle and falls from the air inlet, avoiding excessive dust accumulation and extending the maintenance period. Description of the Drawings

[0022] The following further details the technology of the present invention in conjunction with the drawings and specific embodiments:

[0023] Figure 1 is the overall structural schematic diagram of one angle of the present invention;

[0024] Figure 2 is the overall structural schematic diagram of another angle of the present invention;

[0025] Figure 3 is the connection structural schematic diagram inside the housing;

[0026] Figure 4 is the connection structural schematic diagram of the flip plate and the fixed seat;

[0027] Figure 5 is the connection structural schematic diagram of the flip plate, the support frame and the fixed seat;

[0028] Figure 6 is the support frame structural schematic diagram.

[0029] Reference numerals:

[0030] 1-fixed seat; 11-top plate; 12-side plate; 13-bottom plate; 131-air outlet; 14-first end plate; 15-second end plate; 16-air outlet pipe; 161-air flow meter; 17-air outlet channel; 18-positioning groove;

[0031] 2- Protective cover;

[0032] 3- flip plate; 31- through hole;

[0033] 4-Filter element;

[0034] 5-support frame; 51-first frame; 511-through hole; 52-second frame; 521-first plate; 522-second plate;

[0035] 6-Lock;

[0036] 7-air inlet channel; 71-air inlet;

[0037] 8- air intake passage;

[0038] 9-partition; 91-first plate; 92-second plate; 93-third plate;. DETAILED DESCRIPTION

[0039] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0040] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature, or it may be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the drawings.

[0041] Reference Figures 1 to 6 A self-cleaning fuel cell system air filter comprises a housing, a flip plate 3 and a filter element 4, wherein the filter element 4 is provided with an air inlet end and an air outlet end on two vertical and opposite sides, respectively, and a support frame 5 for fixing and installing the filter element 4 is provided in the housing. The flip plate 3 is provided with a plurality of through holes 31 communicating with the air inlet end of the filter element 4, and one end of the flip plate 3 is hingedly connected to the housing, and can clamp the filter element 4 together with the support frame 5 when rotating toward the support frame 5.

[0042] The support frame 5 is provided with a positioning groove 18 adapted to the filter element 4, and the two vertical side walls of the positioning groove 18 close to the air outlet and air inlet of the filter element 4 are provided with a hollow structure so that the filter element 4 can contact the air. The flip plate 3 is used to open or close the notch and / or side wall of the positioning groove 18, and the flip plate 3 is used to limit the filter element 4 from escaping from the positioning groove 18. The flip plate 3 can be tightly attached to the filter element 4 in the positioning groove 18, thereby clamping the filter element 4 in the positioning groove 18. Among them, the support frame 5 can be used to form a vertical side wall with a hollow structure on the positioning groove 18, and the flip plate 3 can be used to form another vertical side wall with a hollow structure opposite to the positioning groove 18.

[0043] The housing is provided with an air inlet 71 and an air outlet 131. The housing is also provided with an air inlet channel 8 and an air outlet channel 17. The lower end of the air inlet channel 8 is connected to the air inlet 71, and the upper end is connected to the air inlet end of the filter element 4 through a plurality of through holes 31. The flip plate 3 is arranged close to the air inlet channel 8. One end of the air outlet channel 17 is connected to the air outlet 131, and the other end is connected to the air outlet end of the filter element 4 through the hollow structure of the positioning groove 18. The air inlet 71 opens downward and is located below the air inlet end of the filter element 4. The horizontal length of the air inlet 71 is adapted to the horizontal length of the filter element 4. A plurality of through holes 31 are distributed on the flip plate 3. Air enters the filter element 4 from the air inlet end of the filter element 4 and is filtered. The filtered air flows out from the air outlet end of the filter element 4. The air enters the air filter element 4 through the through holes 31 of the flip plate 3 and is filtered, and then is discharged through the air outlet 131 on the housing. Among them, the air intake channel 8 is arranged vertically, and the air intake end of the filter element 4 is located above the air intake port 71. The dust entrained in the air is isolated by the air filter element 4, and is cleaned away from the surface of the air filter element 4 during the vibration of the vehicle and falls from the air intake port 71, thereby avoiding excessive accumulation of dust and extending the maintenance period.

[0044] The areas of the two opposite sides vertically arranged on the filter element 4 in this solution are relatively large, and the air inlet and the air outlet are respectively arranged on the two opposite vertical sides, which increases the contact area with the air, and the area occupied by the filter element 4 in the horizontal direction is relatively small, which reduces the space occupied. At the same time, the horizontal length of the air inlet 71 is larger than the horizontal length of the filter element 4, and the air inlet 71 is directly below the corresponding side of the filter element 4, so that the dust on the air inlet end of the side of the filter element 4 can fall smoothly from the air inlet 71.

[0045] Specifically, the housing includes a fixed seat 1 and a protective cover 2. The fixed seat 1 and the protective cover 2 are detachably and fixedly connected. The filter element 4 is horizontally located between the fixed seat 1 and the protective cover 2. The upper end of the protective cover 2 is detachably and fixedly connected to the fixed seat 1, and there is a gap between the lower end and the fixed seat 1 to form the air inlet 71. Between the protective cover 2 and the filter element 4. A groove communicating with the air outlet 131 is provided on one side of the fixed seat 1. The filter element 4 is detachably installed at the notch of the groove and can block the notch. The groove forms the air outlet channel 17.

[0046] Specifically, a support frame 5 is further provided inside the housing. The support frame 5 is located on the side of the filter element 4 close to the fixed seat 1 and is connected to the fixed seat 1 at both the upper and lower ends. The flip plate 3 is located on the side of the filter element 4 close to the protective cover 2, and the bottom end is hingedly connected to the fixed seat 1, and the upper end is detachably and fixedly connected to the upper end of the fixed seat 1. There is a gap between the flip plate 3 and the protective cover 2 to form the air inlet channel 8. The air inlet 71 is located at the lower end of the air inlet channel 8. The air inlet 71 has a larger size, reducing the air flow resistance and lowering the energy consumption of the fuel cell system.

[0047] Specifically, the fixed seat 1 includes a top plate 11, a side plate 12, and a bottom plate 13 that are connected to each other to form a U shape. The side plate 12 is vertically arranged and forms the bottom of the groove for accommodating the groove. The support frame 5 is vertically arranged, with the upper end connected to the top plate 11 and the lower end connected to the bottom plate 13. There is a gap between the side plate 12 and the support frame 5 to form the air outlet channel 17. The air outlet 131 is located on the bottom plate 13. The lower end of the flip plate 3 is hingedly connected to the bottom plate 13, and the upper end is detachably and fixedly connected to the top plate 11.

[0048] Specifically, the fixed seat 1 further includes a first end plate 14 and a second end plate 15. The top plate 11, the first end plate 14, the bottom plate 13, and the second end plate 15 are sequentially connected end to end. One end is tightly connected to the side plate 12, and the other end forms the notch of the groove. The top plate 11, the bottom plate 13, the first end plate 14, and the second end plate 15 are all tightly connected to the filter element 4. The filter element 4 is directly or indirectly tightly connected to the inside of the fixed seat 1 around the vertical direction to prevent the air that has not been filtered by the filter element 4 from directly entering the air outlet channel 17 through the edge gaps around the filter element 4.

[0049] Specifically, the support frame 5 includes a first frame body 51 and a second frame body 52 which are connected in sequence from top to bottom in an L shape. The first frame body 51 is provided with a hollow structure or a through hole 511 corresponding to each through hole 31. The area where the hollow structure or the through holes 511 are located is adapted to the area where the air outlet end of the side of the filter element 4 is located, so as to prevent the air that is not filtered by the filter element 4 from directly entering the air outlet channel 17. The upper end of the first frame body 51 is in contact with or tightly connected to the top plate 11, and the lower end is fixedly connected to the second frame body 52. ​​The second frame body 52 is connected to the bottom plate 13 and the upper end surface is arranged horizontally. The bottom end of the flip plate 3 is hingedly connected to an end of the second frame body 52 away from the first frame body 51. The filter element 4 is located on the second frame body 52 and between the first frame body 51 and the flip plate 3. Among them, the first frame 51 and the second frame 52 are connected to form a part of the positioning groove 18. The first frame 51 is used to form a side wall of the positioning groove 18, and the second frame 52 is used to form the bottom of the positioning groove 18. When the flip plate is rotated upward to clamp the filter element 4, another side wall of the positioning groove 18 opposite to the first frame 51 can be formed.

[0050] Specifically, the upper end of the flip plate 3 is connected to the top plate 11 through a lock 6. The flip plate 3 is used to fix the air filter element 4. One end of the flip plate 3 is connected to the shell through a hinge and can rotate around the hinge axis. The other end of the flip plate 3 is connected to the top plate 11 through a lock 6, wherein the lower end of the flip plate 3 can be hingedly connected to the bottom end of the first frame 51 or the bottom plate 13 through a hinge. The filter element 4 is located between the first frame 51 and the flip plate 3 in the horizontal direction, and can be clamped and fixed by the flip plate 3 and the first frame 51. When working, the flip plate 3 is tightly buckled on the air filter element 4 to prevent fine particles from entering from the gap between the air filter element 4 and the shell; when the air filter element 4 needs to be disassembled, the lock 6 is opened, and the flip plate 3 is flipped outward of the air filter element 4 at a certain angle, so that the air filter element 4 can be pulled out upward as a whole.

[0051] Specifically, the second frame body 52 includes a first plate 521 and a second plate 522. The first plate 521 and the second plate 522 are connected to form an inverted L shape. The first plate 521 is horizontally arranged and located above the bottom plate 13. The filter element 4 is placed on the first plate 521. The upper ends of the first plate 521 and the second plate 522 are connected. The side away from the second plate 522 is connected to the first frame body 51, and the lower part of the second plate 522 is connected to the bottom plate 13. There is a gap between the first plate 521 and the bottom plate 13, and this gap forms a part of the air outlet channel 17. The air outlet 131 can be located below the first plate 521. The two ends of the first plate 521 and the second plate 522 in the horizontal direction are respectively tightly connected to the first end plate 14 and the second end plate 15 to prevent air from entering the air outlet channel 17 without passing through the filter element 4. Among them, the lower end of the flip plate 3 can be hinged to the second plate 522 through a hinge to realize the rotation function of the flip plate 3.

[0052] Specifically, referring to Figure 1 , Figure 2 , Figure 3 As shown, one end of the bottom plate 13 away from the side plate 12 is further connected with a partition plate 9. The partition plate 9 is vertically arranged and the bottom end is lower than the bottom plate 13. The upper end of the partition plate 9 can be connected to the end of the bottom plate 13. The air inlet 71 and the air outlet 131 are respectively located on both sides of the partition plate 9. The partition plate 9 can be used to install the flip plate 3. The bottom end of the flip plate 3 is hinged to the partition plate 9 through a hinge or a hinge to realize the hinged connection between the flip plate 3 and the housing, so as to realize the rotation function of the flip plate 3 and avoid damage to the structure of the filter element 4 caused by the installation of the hinge. The partition plate 9 includes a first plate body 91, a second plate body 92, and a third plate body 93 that are sequentially connected to form a U shape. The first plate body 91 and the third plate body 93 are parallel to each other. The upper end of the second plate body 92 is connected to the bottom plate 13. The side of the third plate body 93 close to the first plate body 91 is tightly connected to the outer side surface of the second end plate 15, and can be fixedly connected by welding to form a rigid whole. The side of the first plate body 91 close to the third plate body 93 is tightly connected to the outer side surface of the first end plate 14, and can be fixedly connected by welding to form a rigid whole. The first plate body 91 and the third plate body 93 are provided with screw holes for fixing, and the filter of this solution can be fixed to the frame of the fuel cell system through the partition plate 9 to avoid pair.

[0053] Specifically, referring to Figure 5As shown in the figure, the turning plate 3 includes a main body and a frame 32. A number of through holes 31 are located on the main body. The vertical cross-section of the frame 32 is in a U shape with the opening facing downwards. One side of the frame 32 is fixedly connected to the side of the main body close to the filter element 4. When the turning plate 3 is turned upwards to clamp the filter element 4, the frame 32 is located between the main body and the first frame body 51, and the frame covers a part of the outer side of the filter element 4. The inner side of the frame 32 can be closely connected to the two opposite vertical sides and the top surface of the filter element 4 between its air inlet end and air outlet end, which can prevent the filter element 4 from being disengaged from between the main body and the first frame body 51. The upper end surface of the frame 42 is connected to the top plate 11 through a lock 6, and the lock 6 can adopt a conventional lock 6 structure.

[0054] Specifically, an air outlet pipe 16 is provided at the air outlet 131, and an air flow meter 161 can be installed in the air outlet pipe 16.

[0055] Specifically, both the filter element 4 and the housing are in a cuboid shape. In this solution, both the air filter housing and the air filter element 4 are designed in a square structure. A wide air inlet 71 is provided on the lower side of the housing, which increases the air inlet area and solves the problem of excessive flow resistance.

[0056] For other contents of the self-cleaning fuel cell system air filter of the present invention, reference can be made to the prior art and will not be elaborated here.

[0057] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Therefore, any modifications, equivalent changes and decorations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A self-cleaning fuel cell system air filter, characterized in that: It includes a housing, a flip plate and a filter element. A support frame for installing the filter element is provided inside the housing. The filter element has an air inlet end and an air outlet end on its vertically opposite sides respectively. A number of through holes communicating with the air inlet end of the filter element are provided on the flip plate. One end of the flip plate is hingedly connected to the housing. When the flip plate rotates towards the support frame, it can jointly clamp the filter element with the support frame; An air inlet and an air outlet are provided on the housing. An air inlet passage and an air outlet passage are also provided inside the housing. One end of the air inlet passage communicates with the air inlet, and the other end communicates with the air inlet end of the filter element through a number of the through holes; one end of the air outlet passage communicates with the air outlet, and the other end communicates with the air outlet end of the filter element; the air inlet opens downward and is located below the air inlet end of the filter element, and the horizontal length of the air inlet is adapted to the horizontal length of the filter element.

2. The self-cleaning fuel cell system air filter according to claim 1, characterized in that: The housing includes a fixed seat and a protective cover. The filter element is horizontally located between the fixed seat and the protective cover. The upper end of the protective cover is detachably fixed to the fixed seat, and there is a gap between the lower end and the fixed seat to form the air inlet. Between the protective cover and the filter element; A groove communicating with the air outlet is provided on one side of the fixed seat. The filter element is detachably installed at the notch of the groove and can block the notch. The groove forms the air outlet passage; The support frame and the flip plate are located between the fixed seat and the protective cover. The support frame is located on the side of the filter element close to the fixed seat, and the flip plate is located on the side of the filter element close to the protective cover.

3. The self-cleaning fuel cell system air filter according to claim 2, characterized in that: The support frame is located on the side of the filter element close to the fixed seat and is connected to the fixed seat at both the upper and lower ends. The flip plate is located on the side of the filter element close to the protective cover, and the bottom end is hingedly connected to the fixed seat, and the upper end is detachably fixed to the upper end of the fixed seat; There is a gap between the flip plate and the protective cover to form the air inlet passage.

4. The self-cleaning fuel cell system air filter according to claim 3, characterized in that: The fixed seat includes a top plate, a side plate and a bottom plate that are connected to each other to form a U shape. The side plate is vertically arranged and forms the bottom of the groove. The support frame is vertically arranged, with the upper end connected to the top plate and the lower end connected to the bottom plate; there is a gap between the side plate and the support frame to form the air outlet passage, and the air outlet is located on the bottom plate; the bottom end of the flip plate is hingedly connected to the bottom plate, and the upper end is detachably fixed to the top plate.

5. The self-cleaning fuel cell system air filter according to claim 4, characterized in that: The fixed seat further includes a first end plate and a second end plate. The top plate, the first end plate, the bottom plate and the second end plate are sequentially connected end to end. One end is tightly connected to the side plate, and the other end forms the notch of the groove. The top plate, the bottom plate, the first end plate and the second end plate are all tightly connected to the filter element.

6. The self-cleaning fuel cell system air filter according to claim 4, characterized in that: The support frame includes a first frame body and a second frame body which are sequentially connected from top to bottom to form an L shape. The first frame body is provided with a hollow. The upper end of the first frame body is fixedly connected to the top plate, and the lower end is fixedly connected to the second frame body. The second frame body is connected to the bottom plate and its upper end face is horizontally arranged. The flipping plate is hingedly connected to one end of the second frame body far from the first frame body. The filter element is located on the second frame body and between the first frame body and the flipping plate.

7. The self-cleaning fuel cell system air filter according to claim 6, characterized in that: The upper end of the flipping plate is connected to the top plate through a buckle.

8. The self-cleaning fuel cell system air filter according to claim 6, characterized in that: The flipping plate includes a main body and a frame. A plurality of through holes are located on the main body. The vertical section of the frame is in a U shape with an opening downward. One side is fixedly connected to one side of the main body close to the filter element. When the flipping plate flips upward to clamp the filter element, the frame is located between the main body and the first frame body. The frame can be closely connected to the two opposite vertical sides and the top surface of the filter element. The upper end face of the frame is connected to the top plate through a buckle.

9. The self-cleaning fuel cell system air filter according to claim 1, characterized in that: An air outlet pipe is provided at the air outlet.

10. The self-cleaning fuel cell system air filter according to claim 1, characterized in that: Both the filter element and the housing are in a cuboid shape.

Images