An air intake channel filtering component for an automotive air conditioner

Abstract

The present invention provides a filtering assembly for an air intake passage of an automotive air conditioner, comprising: a telescopic part, which includes an inner connecting frame, a telescopic frame and an outer connecting frame, and is arranged in the air intake passage of the automotive air conditioner; a filtering part, which is suspended in the telescopic part, the filtering part includes a filter net and a swinging part, the swinging part is arranged on the side of the filter net close to the inner connecting frame and can swing back and forth relative to the filter net; an elastic part, which is arranged between the inner frame and the filtering part, the elastic part can be compressed by force and automatically reset when there is no external force; when the air intake passage of the automotive air conditioner intakes air, the elastic part contracts, and the swinging part is blown away from the filter net by the incoming air. When the air intake of the air intake passage of the automotive air conditioner decreases or stops, the elastic part resets, and the swinging part swings to knock on the filter net. This filtering assembly can achieve self-cleaning of the filtering part by using the incoming air in the air intake passage, and the overall structure is simple, which is convenient for installation, disassembly and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive air conditioners, and particularly to a filtering assembly for an air intake passage of an automotive air conditioner. Background Art

[0002] An automotive air conditioning system is a device for cooling, heating, ventilating, and purifying the air in a vehicle compartment. It can provide a comfortable riding environment for passengers, reduce the fatigue intensity of the driver, and improve driving safety. The air intake passage of an automotive air conditioner is an important part of the automotive air conditioning system, and external air enters the interior of the automotive air conditioner through the air intake passage.

[0003] Currently, in order to ensure the quality of the incoming air, a filtering assembly is installed at the air intake passage opening of the automotive air conditioner to filter the incoming air. In most existing filtering assemblies, the filter screen is in a static state with respect to the air intake passage, resulting in dust being easily and quickly accumulated on the filter screen, which easily causes the filter screen to become blocked and affects the air intake effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a filtering assembly that can utilize the incoming air of the automotive air conditioner to achieve the self-cleaning ability of the filtering part.

[0005] To solve the above problems, the present invention provides a filtering assembly for an air intake passage of an automotive air conditioner, comprising:

[0006] A telescopic part, the telescopic part includes an inner connecting frame, a telescopic frame, and an outer connecting frame, and the telescopic part is arranged in the air intake passage of the automotive air conditioner;

[0007] A filtering part, the filtering part is suspended in the telescopic part, the filtering part includes a filter screen and a swinging part, the swinging part is arranged on the side of the filter screen close to the inner connecting frame, and can swing back and forth relative to the filter screen;

[0008] An elastic part, the elastic part is arranged between the inner frame and the filtering part, and the elastic part can be compressed by force and automatically reset when there is no external force;

[0009] When the air intake passage of the automotive air conditioner intakes air, the elastic part contracts, and the swinging part is blown away from the filter screen by the incoming air. When the air intake of the air intake passage of the automotive air conditioner decreases or stops, the elastic part resets, and the swinging part swings and knocks on the filter screen.

[0010] The technical effect achieved after adopting this technical scheme is as follows: the filter part is connected to the inner frame of the telescopic part through the elastic part, and the filter part is suspended in the telescopic part. When the automobile air conditioner is working, negative pressure is formed in the air inlet channel, so that outside air enters the air inlet channel, and the air flow passes through the filter part and squeezes the filter part, so that the filter part moves and squeezes the elastic part. The elastic part is forced to shrink, and at the same time, when the air flow passes through the filter net in the filter part, the swinging part behind the filter net is blown up. When the air flow becomes smaller or the automobile air conditioner stops working, the swinging part hits the filter net, causing the filter net to vibrate continuously and dust on the filter net to fall off. At the same time, the resetting of the elastic part pushes the filter part, causing the filter part to shake as a whole, further increasing the vibration amplitude and vibration duration of the filter net, causing dust on the filter net to fall off, avoiding the accumulation of dust on the filter net, and realizing the self-cleaning ability of the automobile air conditioner air inlet filter part.

[0011] Optionally, one end of the telescopic frame is connected to the internal frame, and the other end of the telescopic frame is connected to the external frame. The internal frame and the elastic part are detachably connected together, and the external frame and the automobile air-conditioning air inlet channel are detachably connected together.

[0012] The technical effect achieved after adopting this technical solution is as follows: the telescopic part is detachably connected to the elastic part, the telescopic part is detachably connected to the automobile air-conditioning air inlet channel, and the filter part is suspended in the telescopic part, so that the filter assembly is easy to install and disassemble, and convenient for later maintenance and cleaning.

[0013] Optionally, the filter part further includes a movable frame, which can move back and forth in the telescopic part. The filter net, the swing part and a support rod are arranged in the movable frame, and the support rod is used to connect the swing part.

[0014] The technical effect achieved after adopting this technical solution is: by arranging the filter net, the swing part and the support rod in the movable frame, the filter net, the swing part, the support rod and the movable frame move back and forth in the telescopic part together, preventing the filter net, the swing part and the support rod from being damaged in the telescopic part.

[0015] Optionally, a plurality of the support rods are arranged transversely and distributed at equal intervals in the movable frame, and any one of the support rods is connected to a plurality of the swing parts, wherein the upper end of each swing part is connected to the support rod, and the lower end of each swing part is arranged between two adjacent support rods.

[0016] The technical effect achieved after adopting this technical solution is as follows: by arranging multiple swing parts in the filter part, multiple swing parts will hit the filter net at the same time, thereby increasing the strength of the swing part hitting the filter net, and by arranging the support rods horizontally and distributing them at equal intervals in the movable frame to make the distribution of the swing parts more even, the filter net can also be fully impacted and knocked, thereby improving the dust removal capacity of the filter part.

[0017] Optionally, the swinging part includes a swinging rope and a swinging member. The upper end of the swinging rope is connected to the support rod, the lower end of the swinging rope is connected to the swinging member, and the swinging member is arranged between two adjacent support rods.

[0018] The technical effect achieved by adopting this technical solution: Through the design of the swinging rope and the swinging member, when the swinging part impacts the filter screen, the swinging angle of the swinging part becomes more flexible, further improving the flexibility of the swinging part.

[0019] Optionally, a sealing border is fixedly provided at the edge of one end of the outer frame away from the telescopic frame. Edge plates are fixedly provided on both the upper and lower sides of the sealing border, and locking knobs are provided on the edge plates.

[0020] The technical effect achieved by adopting this technical solution: When the filter assembly is installed in the air inlet channel of the automotive air conditioner, the edge plates are located outside the port of the air inlet channel of the automotive air conditioner. Tighten the locking knobs so that the tail ends of the locking knobs press against the outer wall of the air inlet channel, thereby realizing the fixation of the filter assembly at the port of the air inlet channel of the automotive air conditioner.

[0021] Optionally, the elastic part includes an inner cloth sleeve, an outer cloth sleeve, and a plurality of springs. The outer cloth sleeve is sleeved on the inner cloth sleeve, and the springs are located between the outer cloth sleeve and the inner cloth sleeve.

[0022] The technical effect achieved by adopting this technical solution: By sleeving the outer cloth sleeve on the inner cloth sleeve and having the springs between the outer cloth sleeve and the inner cloth sleeve, it is realized that the elastic part can be compressed under force and automatically reset when there is no external force.

[0023] Optionally, the rear ends of both the inner cloth sleeve and the outer cloth sleeve are connected to a rear plate frame, and the front ends of both the inner cloth sleeve and the outer cloth sleeve are connected to a front plate frame. Both ends of the springs are respectively connected to the front plate frame and the rear plate frame. Sealing grooves are provided on the front side of the front plate frame and the rear side of the rear plate frame; fiber gasket strips are arranged inside the sealing grooves.

[0024] The technical effect achieved by adopting this technical solution: It makes the installation between the filtering part and the elastic part fast and convenient, and at the same time facilitates the disassembly of the filtering part in the later stage.

[0025] Optionally, a second sealing convex strip is fixedly provided on the rear side of the movable frame. A second burr gasket strip is fixedly provided on the second sealing convex strip. The second sealing convex strip is nested in the sealing groove on the front plate frame, and the second burr gasket strip is bonded to the fiber gasket strip.

[0026] The technical effect achieved by adopting this technical solution: Through the setting of the sealing groove and the second sealing convex strip, it is ensured that the movable frame is aligned with the front plate frame, ensuring the sealing performance of the bonding part between the filtering part and the elastic part.

[0027] Optionally, a first sealing rib is fixedly provided on the front side of the inner connecting frame. A first burr cushion strip is fixedly provided at the front end of the first sealing rib. The first sealing rib is nested in the sealing groove on the rear plate frame, and the first burr cushion strip is adhered to the fiber cushion strip.

[0028] The technical effects achieved by adopting this technical solution are as follows: The installation between the elastic part and the telescopic part is simple and convenient, and at the same time, it is convenient to disassemble the elastic part. The arrangement of the sealing groove and the first sealing rib aligns the inner connecting frame with the rear plate frame, ensuring the sealing performance at the bonding position between the telescopic part and the elastic part. Description of the Drawings

[0029] Figure 1 Is a perspective view of an embodiment of the present application;

[0030] Figure 2 Is Figure 1 The front projection view of

[0031] Figure 3 Is Figure 1 The three-dimensional cross-sectional view of

[0032] Figure 4 Is Figure 1 The structural schematic diagram of the telescopic part in

[0033] Figure 5 Is Figure 4 The side projection view of

[0034] Figure 6 Is Figure 4 The structural schematic diagram of the inner connecting frame in

[0035] Figure 7 Is Figure 1 The structural schematic diagram of the filtering part in

[0036] Figure 8 Is Figure 7 The structural schematic diagram from another angle in

[0037] Figure 9 Is Figure 1 The structural schematic diagram of the elastic part in

[0038] Figure 10 Is Figure 9 The three-dimensional cross-sectional view of

[0039] Figure 11 Is Figure 10 The enlarged view of part I in

[0040] Description of the reference numerals:

[0041] 10. Telescopic part; 11. Inner connecting frame; 12. Telescopic frame; 13. Outer connecting frame; 14. Sealing edge; 15. Edge plate; 16. Locking knob; 17. Threaded sleeve; 18. First sealing rib; 19. First burr gasket strip;

[0042] 20. Filter part; 21. Movable frame; 22. Filter net; 23. Support rod; 24. Swing rope; 25. Swing part; 26. Second sealing rib; 27. Second burr gasket strip;

[0043] 30. Elastic part; 31. Inner cloth sleeve; 32. Outer cloth sleeve; 33. Spring; 34. Rear plate frame; 35. Front plate frame; 36. Sealing groove; 37. Fiber gasket strip. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to Figures 1 to 11 , the embodiment of the present application provides an air intake channel filtering assembly for an automobile air conditioner, including: a telescopic part 10, a filtering part 20 and an elastic part 30. The telescopic part 10 includes an inner connecting frame 11, a telescopic frame 12 and an outer connecting frame 13, and is arranged in the air intake channel of the automobile air conditioner; the filtering part 20 is suspended in the telescopic part 10. The filtering part 20 includes a filter net 22 and a swing part. The swing part is arranged on the side of the filter net 22 close to the inner connecting frame 11 and can swing back and forth relative to the filter net 22; the elastic part 30 is arranged between the inner connecting frame 11 and the filtering part 20. The elastic part 30 can be compressed by force and automatically reset when there is no external force; when the air intake channel of the automobile air conditioner intakes air, the elastic part 30 contracts, and the swing part is blown away from the filter net 22 by the incoming air. When the air intake of the air intake channel of the automobile air conditioner decreases or stops, the elastic part 30 resets, and the swing part swings and knocks the filter net 22.

[0046] The specific working principle is as follows: The filtering part 20 is connected to the inner connecting frame 11 of the telescopic part 10 through the elastic part 30. The filtering part 20 is suspended inside the telescopic part 10. When the automotive air conditioner works, a negative pressure is formed in the air inlet passage, causing the outside air to enter the air inlet passage. The air flow passes through the filtering part 20 and squeezes the filtering part 20, causing the filtering part 20 to move and squeeze the elastic part 30. The elastic part 30 contracts under force. At the same time, when the air flow passes through the filter screen 22 inside the filtering part 20, the swinging part behind the filter screen 22 is blown up. When the air flow becomes smaller or the automotive air conditioner stops working, the swinging part impacts the filter screen 22, causing the filter screen 22 to vibrate continuously, making the dust on the filter screen 22 fall off. At the same time, the reset of the elastic part 30 pushes the filtering part 20, causing the whole filtering part 20 to shake, further increasing the vibration amplitude and duration of the filter screen 22, making the dust on the filter screen 22 fall off, avoiding the accumulation of dust on the filter screen 22, and realizing the self-cleaning ability of the air inlet filtering part 20 of the automotive air conditioner. Among them, the filter screen 22 is arranged in a wavy shape, increasing the filtering area of the filter screen 22, thereby enhancing the filtering ability of the filtering part 20.

[0047] One end of the telescopic frame 12 of the telescopic part 10 is connected to the inner connecting frame 11, and the other end of the telescopic frame 12 is connected to the outer connecting frame 13. The inner connecting frame 11 is detachably connected to the elastic part 30, and the outer connecting frame 13 is detachably connected to the air inlet passage of the automotive air conditioner. Through the detachable connection between the telescopic part 10 and the elastic part 30, and the detachable connection between the telescopic part 10 and the air inlet passage of the automotive air conditioner, and the filtering part 20 is suspended inside the telescopic part 10, it is easy to install and disassemble the filtering component, facilitating later maintenance and cleaning. Among them, the size of the outer connecting frame 13 is larger than that of the inner connecting frame 11. The front end of the telescopic frame 12 is fixedly connected to the edge of the rear side frame opening of the outer connecting frame 13, and the rear end of the telescopic frame 12 is fixedly connected to the front side edge of the inner connecting frame 11. The telescopic frame 12 can be processed and made of silica gel material, and the inner and outer side walls of the telescopic frame 12 are both arranged in a corrugated shape, enabling the telescopic frame 12 to effectively fold and stretch.

[0048] Further, the filtering part 20 further includes a movable frame 21 which can move back and forth within the telescopic part 10. A filter screen 22, a swinging part and a support rod 23 are arranged inside the movable frame 21. The support rod 23 is used to connect the swinging part. By arranging the filter screen 22, the swinging part and the support rod 23 inside the movable frame 21, the filter screen 22, the swinging part and the support rod 23 move back and forth within the telescopic part 10 together, preventing the filter screen 22, the swinging part and the support rod 23 from being damaged within the telescopic part 10. A plurality of support rods 23 are arranged horizontally and are equally spaced inside the movable frame 21. Any one of the support rods 23 is connected to a plurality of swinging parts. Among them, the left and right ends of the support rod 23 are respectively fixedly connected to the left and right inner walls of the movable frame 21. The upper end of each swinging part is connected to the corresponding support rod 23, and the lower end of each swinging part is arranged between two adjacent support rods 23. By arranging a plurality of swinging parts in the filtering part 20, multiple swinging parts will strike the filter screen 22 simultaneously, increasing the force of the swinging part striking the filter screen 22. Moreover, by arranging the support rods 23 horizontally and equally spaced inside the movable frame 21, the swinging parts are more evenly distributed, and can also comprehensively impact and strike the filter screen 22, thereby improving the dust removal ability of the filtering part 20.

[0049] Further, the swinging part includes a swinging rope 24 and a swinging piece 25. The upper end of the swinging rope 24 is connected to the corresponding support rod 23, and the lower end of the swinging rope 24 is connected to the swinging piece 25. The swinging piece 25 is arranged between two adjacent support rods 23, that is, the distance from the top end of the swinging rope 24 to the bottom end of the swinging piece 25 is less than the distance between two adjacent upper and lower support rods 23. Through the design of the swinging rope 24 and the swinging piece 25, when the swinging part strikes the filter screen 22, the swinging angle of the swinging part is more flexible, further improving the flexibility of the swinging part. Among them, the elastic part can be an elastic ball.

[0050] In other embodiments, a sealing edge 14 is fixedly provided at the edge of one end of the outer frame 13 away from the telescopic frame 12. Edge plates 15 are fixedly provided on both the upper and lower sides of the sealing edge 14. A locking knob 16 is provided on the edge plate 15. The outer frame 13, the sealing edge 14 and the edge plate 15 can be integrally processed and formed. A threaded sleeve 17 is provided at the position corresponding to the locking knob 16 on the edge plate 15. The locking knob 16 is threadedly nested in the threaded sleeve 17, and the tail end of the locking knob 16 penetrates through the threaded sleeve 17. After the filter assembly is installed in the air inlet passage of the vehicle air conditioner, the edge plate 15 is located outside the port of the air inlet passage of the vehicle air conditioner. Rotate the locking knob 16 tightly so that the tail end of the locking knob 16 presses against the outer wall of the air inlet passage, thereby realizing the fixation of the filter assembly at the port of the air inlet passage of the vehicle air conditioner. When it is necessary to clean or replace the filter part 20 in the filter assembly, reverse-rotate the locking knob 16 on the edge plate 15 so that the tail end of the locking knob 16 disengages from the outer wall of the air inlet passage, and then pull the telescopic part 10 outwards, and the filter assembly can be pulled out of the air inlet passage. Then, squeeze the inner frame 11 or the outer frame 13 towards the telescopic frame 12, so that the telescopic frame 12 folds and contracts, so that the filter part 20 can be exposed from the telescopic part 10.

[0051] In some other embodiments, the elastic part 30 includes an inner cloth sleeve 31, an outer cloth sleeve 32 and a plurality of springs 33. The outer cloth sleeve 32 is sleeved on the inner cloth sleeve 31, and the springs 33 are located between the outer cloth sleeve 32 and the inner cloth sleeve 31, realizing that the elastic part 30 can be compressed by force and automatically reset when there is no external force. The inner cloth sleeve 31 and the outer cloth sleeve 32 can be processed and made of polyester fabric, which has good elasticity and is airtight, playing a role in dust prevention and protecting the springs 33. The springs 33 are preferably light springs.

[0052] Furthermore, rear plate frames 34 are connected to the rear ends of both the inner cloth sleeve 31 and the outer cloth sleeve 32, and front plate frames 35 are connected to the front ends of both the inner cloth sleeve 31 and the outer cloth sleeve 32. Both ends of the spring 33 are connected to the front plate frame 35 and the rear plate frame 34 respectively. Sealing grooves 36 are formed on the front sides of the front plate frame 35 and the rear sides of the rear plate frame 34, and fiber gasket strips 37 are arranged inside the sealing grooves 36, making the installation of the filter part 20 and the elastic part 30 fast and convenient, and facilitating the disassembly of the filter part in the later stage.

[0053] Furthermore, a second sealing rib 26 is fixedly provided on the rear side of the movable frame 21. A second burr gasket strip 27 is fixedly provided on the second sealing rib 26. The second sealing rib 26 is nested in the sealing groove 36 on the front plate frame 35, and the second burr gasket strip 27 is bonded to the fiber gasket strip 37. Through the arrangement of the sealing groove 36 and the second sealing rib 26, the alignment of the movable frame 21 and the front plate frame 35 is ensured, and the sealing performance of the bonding part between the filter part 20 and the elastic part 30 is ensured.

[0054] Further, a first sealing rib 18 is fixedly provided on the front side of the inner connecting frame 11. A first burr cushion strip 19 is fixedly provided at the front end of the first sealing rib 18. The first sealing rib 18 is nested in a sealing groove 36 on the rear plate frame 34. The first burr cushion strip 19 is bonded to the fiber cushion strip 37, making the installation of the elastic part 30 and the telescopic part 10 simple and convenient. At the same time, it is convenient for the disassembly of the elastic part 30. The arrangement of the sealing groove 36 and the first sealing rib 18 aligns the inner connecting frame 11 with the rear plate frame 34, ensuring the sealing performance of the bonding part between the telescopic part 10 and the elastic part 30.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air intake passage filtering assembly for an automotive air conditioner, characterized in that, Comprising: A telescopic part (10), the telescopic part (10) includes an inner connecting frame (11), a telescopic frame (12) and an outer connecting frame (13), and the telescopic part (10) is arranged in the air inlet channel of the automotive air conditioner; One end of the telescopic frame (12) is connected to the inner connecting frame (11), and the other end of the telescopic frame (12) is connected to the outer connecting frame (13); A filtering part (20), the filtering part (20) is suspended in the telescopic part (10), the filtering part (20) includes a filter net (22) and a swinging part, the swinging part is arranged on the side of the filter net (22) close to the inner connecting frame (11), and can swing back and forth relative to the filter net (22); An elastic part (30), the elastic part (30) is arranged between the inner connecting frame (11) and the filtering part (20), and the elastic part (30) can be compressed by force and automatically reset when there is no external force; When the air inlet channel of the automotive air conditioner admits air, the elastic part (30) contracts, and the swinging part is blown away from the filter net (22) by the incoming air. When the air inlet of the air inlet channel of the automotive air conditioner decreases or stops, the elastic part (30) resets, and the swinging part swings and knocks on the filter net (22); The filtering part (20) further includes a movable frame (21), the movable frame (21) can move in the telescopic part (10), the filter net (22), the swinging part and a support rod (23) are arranged in the movable frame (21), and the support rod (23) is used to connect the swinging part; A plurality of the support rods (23) are arranged horizontally and are equally spaced in the movable frame (21), and any one of the support rods (23) connects a plurality of the swinging parts. Wherein, the upper end of each swinging part is connected to the support rod (23), and the lower end of each swinging part is arranged between two adjacent support rods (23); The swinging part includes a swinging rope (24) and a swinging member (25), the upper end of the swinging rope (24) is connected to the support rod (23), the lower end of the swinging rope (24) is connected to the swinging member (25), and the swinging member (25) is arranged between two adjacent support rods (23).

2. The air intake passage filtering assembly for an automotive air conditioner according to claim 1, characterized in that The inner connecting frame (11) is detachably connected to the elastic part (30), and the outer connecting frame (13) is detachably connected to the air inlet channel of the automotive air conditioner.

3. The air intake passage filtering assembly for an automotive air conditioner according to claim 1, characterized in that, One end of the outer connecting frame (13) away from the telescopic frame (12) is provided with a sealing edge (14), both the upper and lower sides of the sealing edge (14) are provided with edge plates (15), and locking knobs (16) are arranged on the edge plates (15).

4. The air inlet passage filtering assembly for an automotive air conditioner according to claim 1, wherein The elastic part (30) includes an inner cloth sleeve (31), an outer cloth sleeve (32) and a plurality of springs (33), the outer cloth sleeve (32) is sleeved on the inner cloth sleeve (31), and the springs (33) are between the outer cloth sleeve (32) and the inner cloth sleeve (31).

5. The air intake passage filtering assembly for an automotive air conditioner according to claim 4, wherein, The rear ends of the inner cloth sleeve (31) and the outer cloth sleeve (32) are both connected to the rear plate frame (34), the front ends of the inner cloth sleeve (31) and the outer cloth sleeve (32) are both connected to the front plate frame (35), both ends of the spring (33) are connected to the front plate frame (35) and the rear plate frame (34) respectively, and sealing grooves (36) are formed on the front side of the front plate frame (35) and the rear side of the rear plate frame (34); a fiber gasket strip (37) is arranged inside the sealing groove (36).

6. The air intake passage filtering assembly for an automotive air conditioner according to claim 5, wherein, A second sealing rib (26) is arranged on the rear side of the movable frame (21), a second burr gasket strip (27) is arranged on the second sealing rib (26), the second sealing rib (26) is nested in the sealing groove (36) on the front plate frame (35), and the second burr gasket strip (27) is bonded to the fiber gasket strip (37).

7. The air intake passage filtration assembly for an automotive air conditioner according to claim 6, wherein A first sealing rib (18) is fixedly arranged on the front side of the inner connection frame (11), a first burr gasket strip (19) is fixedly arranged at the front end of the first sealing rib (18), the first sealing rib (18) is nested in the sealing groove (36) on the rear plate frame (34), and the first burr gasket strip (19) is bonded to the fiber gasket strip (37).

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