WO2020248305A1 - 一种空气滤清器及其滤芯 - Google Patents

一种空气滤清器及其滤芯 Download PDF

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Publication number
WO2020248305A1
WO2020248305A1 PCT/CN2019/092972 CN2019092972W WO2020248305A1 WO 2020248305 A1 WO2020248305 A1 WO 2020248305A1 CN 2019092972 W CN2019092972 W CN 2019092972W WO 2020248305 A1 WO2020248305 A1 WO 2020248305A1
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Prior art keywords
inner frame
housing
filter element
filter
filter paper
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PCT/CN2019/092972
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English (en)
French (fr)
Inventor
徐富
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瑞安市环嘉滤清器有限公司
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Publication of WO2020248305A1 publication Critical patent/WO2020248305A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges

Definitions

  • the present invention relates to the technical field of air filters, and more specifically, to an air filter and its filter element.
  • the air filter is located in the engine's air intake system.
  • the function of the air filter is to filter out harmful impurities in the air that will enter the cylinder to reduce the early wear of the cylinder, piston, piston ring, valve and valve seat.
  • the structure of the filter element of the existing air filter is complicated, and the assembly process is cumbersome, which causes a large workload and low production efficiency.
  • the object of the present invention is to provide a filter element of an air cleaner, which has a simple structure and convenient assembly, thereby improving production efficiency.
  • a filter element including:
  • An inner frame the inner frame is matched with the outer shell, and the inner frame is connected with the outer shell;
  • the filter paper is arranged in the inner frame, the filter paper covers the inner cavity of the inner frame in the radial direction of the inner frame, and the filter paper is connected to the inner frame.
  • the filter paper and the inner frame are integrated by injection molding.
  • a mounting groove is provided along the circumference of the housing, and the inner frame can be inserted into the mounting groove;
  • the inner frame is fixed in the installation groove by hot melt glue.
  • the installation groove is arranged close to the air outlet of the housing.
  • the end surface of the air inlet of the inner frame is provided with a foolproof protrusion.
  • a support beam is provided inside the housing near the air outlet of the housing, and the support beam is used to support the filter paper.
  • a pull ring is provided on the housing.
  • the pull ring is clamped with the housing
  • the pull ring includes a ring body and a buckle that are connected to each other.
  • the air inlet of the housing has a convex edge, and a clamping hole is provided on the convex edge along the axial direction.
  • the buckle can be clamped to the clip. ⁇ .
  • a groove is provided along the outer circumference of the housing, and a sealing strip is arranged in the groove, and the sealing strip is in sealing engagement with the inner wall of the housing of the air cleaner.
  • the present invention also discloses an air filter, including a filter element, and the filter element is any one of the foregoing filter elements.
  • the filter element of the present invention only includes an outer shell, an inner frame and filter paper.
  • the connection between the filter paper and the inner frame can be realized by integrated injection molding, and the connection between the inner frame and the outer shell can be realized by hot melt glue.
  • the filter element in the utility model has a simple structure and convenient assembly, thereby improving production efficiency.
  • Figure 1 is a schematic structural diagram of a housing provided by a specific embodiment of the present invention.
  • Figure 2 is a schematic structural diagram of an inner frame provided by a specific embodiment of the present invention.
  • Figure 3 is a schematic structural diagram of a filter element provided by a specific embodiment of the present invention.
  • Fig. 4 is a schematic structural diagram of a pull ring provided by a specific embodiment of the present invention.
  • 1 is the outer shell
  • 2 is the inner frame
  • 3 is the filter paper
  • 4 is the support beam
  • 5 is the clamping hole
  • 6 is the foolproof column
  • 7 is the pull ring
  • 71 is the ring body
  • 72 is the buckle
  • 8 is the installation groove.
  • the invention discloses a filter element of an air cleaner.
  • the filter element has a simple structure and convenient assembly, thereby improving production efficiency.
  • the filter element includes a housing 1, an inner frame 2 and a filter paper 3.
  • the inner frame 2 is matched with the outer shell 1, or the shape of the inner frame 2 is the same as the shape of the inner cavity of the outer shell 1.
  • the inner frame 2 and the outer shell 1 are in a fixed connection relationship.
  • the filter paper 3 is set in the inner frame 2.
  • the filter paper 3 covers the entire inner cavity of the inner frame 2 along the radial direction of the inner frame 2, or the contour shape of the filter paper 3 is the same as the inner cavity shape of the inner frame 2.
  • the filter paper 3 and the inner frame 2 are also in a fixed connection relationship.
  • the filter element in this embodiment only includes the outer shell 1, the inner frame 2 and the filter paper 3. During the assembly process, the filter paper 3 is connected to the inner frame 2 and then the inner frame 2 is connected to the outer shell 1.
  • the filter element in this embodiment has a simple structure and is easy to assemble, thereby improving production efficiency.
  • the filter paper 3 and the inner frame 2 are integrated by injection molding. This production can not only realize the connection between the filter paper 3 and the inner frame 2, but also ensure that there is no gap between the filter paper 3 and the inner wall of the inner frame 2, so as to ensure that all the air is filtered by the filter paper 3 and improve the air filter The quality of filtration.
  • a mounting groove 8 is provided in the housing 1 along the circumference of the housing 1.
  • the inner frame 2 can be inserted into the installation groove 8, and further, the installation groove 8 is arranged in the housing 1 near the air outlet.
  • the air flows along the axial direction of the housing 1, and the opening in the housing 1 for air to enter is the air inlet.
  • the port through which air flows out of the housing 1 is an air outlet.
  • the upper port of the housing 1 is the air inlet
  • the lower port of the housing 1 is the air outlet.
  • the inner frame 2 When the air flows, the inner frame 2 is pressed to the bottom of the installation groove 8, so that the firmness of the connection between the inner frame 2 and the outer shell 1 can be ensured, and the inner frame 2 can be prevented from falling off the installation groove 8. Further, after the inner frame 2 is inserted into the installation groove 8, the inner frame 2 is fixed and sealed in the installation groove 8 by hot melt.
  • the hot melt fixing method is not only convenient for operation, but also firmer.
  • a fool-proof protrusion 6 is provided on the end surface of the air inlet of the inner frame 2. If the side with the fool-proof protrusion 6 is inserted into the installation slot 8, the insertion failure will occur. When it is in place, therefore, the fool-proof protrusion 6 in this embodiment can prevent the air inlet and outlet of the inner frame 2 from being reversed.
  • the foolproof protrusion 6 is higher than the end surface of the air inlet of the housing 1, and this limitation can also prevent the air inlet and the air outlet of the entire filter element from being reversed.
  • a support beam 4 is provided inside the housing 1, and the support beam 4 is close to the air outlet of the housing 1.
  • the supporting beam 4 is used to support the filter paper 3. During the operation of the filter element, the air flow will press the filter paper 3 toward the air outlet side of the housing 1, and the support beam 4 can share the pressure of the filter paper 3, thereby prolonging the service life of the filter paper 3.
  • a pull ring 7 is provided on the housing 1 to facilitate pulling out the filter element from the housing 1 of the air cleaner. Furthermore, the pull ring 7 is selected to be clamped on the housing 1.
  • the form and structure of the card connection are simple and easy to realize.
  • the pull ring 7 includes a ring body 71 and a buckle 72.
  • the buckle 72 is arranged on one side of the ring body 71, and the buckle 72 is perpendicular to the ring body 71.
  • the air inlet of the housing 1 is provided with a convex edge protruding radially outward.
  • a clamping hole 5 is opened on the convex edge along the axial direction of the housing 1.
  • the hole 5 is matched with the buckle 72.
  • the buckle 72 is compressed and deformed and enters into the hole 5, and then expands below the hole 5 to form a clamping relationship with the wall of the hole 5.
  • the buckle 72 is located below the hole 5, the ring 71 is parallel to the plane of the filter paper 3, or the ring 71 can be attached to the filter paper 3, that is, the setting of the snap ring does not enlarge the original filter element.
  • the filter element can be smoothly matched with the housing of the air cleaner.
  • a groove is provided on the outer wall of the housing 1.
  • the groove is arranged along the circumference of the housing 1.
  • the groove is used to hold the sealing strip.
  • the sealing strip is in a sealing fit with the inner wall of the housing of the air cleaner.
  • the function of the sealing strip is to realize the sealing fit between the filter element and the housing of the air cleaner, thereby preventing air from passing through the gap between the filter element and the housing of the air cleaner.
  • the present invention also discloses an air filter, including a filter element, the filter element is any one of the above-mentioned filter elements, and the above-mentioned filter element has the above-mentioned effects.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

公开了一种滤芯及具有该滤芯的空气滤清器。该滤芯包括外壳（1）；内框（2），内框（2）与外壳（1）相配合，内框（2）与外壳（1）连接；滤纸（3），滤纸（3）设置在内框（2）中，滤纸（3）在内框（2）的径向上布满内框（2）的内腔，且滤纸（3）与内框（2）连接。这种滤芯仅仅包括外壳、内框以及滤纸。在组装的过程中，使滤纸连接在内框上，之后将内框连接在外壳上即可。而滤纸与内框的连接可以通过一体化注塑实现，内框与外壳的连接可以通过热熔胶实现。这种滤芯结构简单，组装方便，从而能够提高生产效率。

Description

一种空气滤清器及其滤芯
本申请要求于2019年06月10日提交中国专利局、申请号为201910496852.7、发明名称为“一种空气滤清器及其滤芯”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及空气滤清器技术领域，更具体地说，涉及一种空气滤清器及其滤芯。
背景技术
空气滤清器位于发动机进气系统中。空气滤清器的作用是滤除将要进入气缸的空气中的有害杂质，以减少气缸、活塞、活塞环、气门以及气门座的早期磨损。现有的空气滤清器的滤芯的结构较复杂，组装过程繁琐，因而会导致工作量大，生产效率低。
因此，如何简化空气滤清器的滤芯的结构，从而使滤芯的组装变的方便，提高生产效率，是本领域技术人员亟待解决的关键性问题。
发明内容
本发明的目的是提供一种空气滤清器的滤芯，该滤芯结构简单，组装方便，从而提高生产效率。
一种滤芯，包括：
外壳；
内框，所述内框与所述外壳相配合，且所述内框与所述外壳连接；
滤纸，所述滤纸设置在所述内框中，所述滤纸在所述内框的径向上布满所述内框的内腔，且所述滤纸与所述内框连接。
优选地，所述滤纸与所述内框一体化注塑成型。
优选地，在所述外壳内，沿着所述外壳的周向设置有安装槽，所述内框能够插入到该安装槽内；
所述内框通过热熔胶固定在所述安装槽内。
优选地，所述安装槽靠近所述外壳的出气口设置。
优选地，所述内框的进气口的端面上设置有防呆凸柱。
优选地，在所述外壳的内部，且靠近所述外壳的出气口的位置设置有支撑 梁，所述支撑梁用于支撑所述滤纸。
优选地，所述外壳上设置有拉环。
优选地，所述拉环与所述外壳卡接；
所述拉环包括相互连接的环体和卡扣，所述外壳的进气口具有凸沿，在所述凸沿上沿轴向设置有卡孔，所述卡扣能够卡接于所述卡孔内。
优选地，沿着所述外壳的外周向设置有凹槽，该凹槽内设置有密封条，所述密封条与空气滤清器的壳体的内壁密封配合。
本发明还公开了一种空气滤清器，包括滤芯，所述滤芯为上述任意一种滤芯。
从上述技术方案可以看出，本发明中的滤芯仅仅包括外壳、内框以及滤纸。在组装的过程中，使滤纸连接在内框上，之后将内框连接在外壳上即可。而滤纸与内框的连接可以通过一体化注塑实现，内框与外壳的连接可以通过热熔胶实现。本实用新型中的滤芯结构简单，组装方便，从而能够提高生产效率。
附图说明
为了更清楚地说明本发明实施例中的方案，下面将对实施例中描述所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一具体实施例提供的外壳的结构示意图；
图2为本发明一具体实施例提供的内框的结构示意图；
图3为本发明一具体实施例提供的滤芯的结构示意图；
图4为本发明一具体实施例提供的拉环的结构示意图。
其中，1为外壳、2为内框、3为滤纸、4为支撑梁、5为卡孔、6为防呆凸柱、7为拉环、71为环体、72为卡扣、8为安装槽。
具体实施方式
本发明公开了一种空气滤清器的滤芯，该滤芯结构简单，组装方便，从而提高生产效率。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不 是全部的实施例。基于本发明的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本发明保护的范围。
在本发明一具体实施例中，滤芯包括外壳1、内框2以及滤纸3。内框2与外壳1相配合，或者说内框2的形状与外壳1的内腔的形状相同。内框2与外壳1之间为固定连接关系。滤纸3设置在内框2中。滤纸3沿着内框2的径向布满整个内框2的内腔，或者说滤纸3的轮廓形状与内框2的内腔形状相同。滤纸3与内框2之间也为固定连接关系。
本实施例中的滤芯仅仅包括外壳1、内框2以及滤纸3。在组装的过程中，使滤纸3连接在内框2上，之后将内框2连接在外壳1上即可。本实施例中的滤芯结构简单，组装方便，从而能够提高生产效率。
进一步地，将滤纸3与内框2一体化注塑成型。如此制作，不仅能够实现滤纸3与内框2的连接，而且能够确保滤纸3与内框2的内壁之间无缝隙，从而能够确保所有的空气均经过滤纸3的过滤，提高了空气滤清器的过滤质量。
在本发明一具体实施例中，在外壳1内，沿着外壳1的周向设置了安装槽8。内框2能够插入到该安装槽8中，进一步地，将该安装槽8设置在外壳1内靠近出气口的位置。空气是沿着外壳1的轴向进行流动的，外壳1中供空气进入的口为进气口。外壳1中供空气流出的口为出气口。例如在附图1中，外壳1的上端口即为进气口，外壳1的下端口即为出气口。空气在流动时，会将内框2压向安装槽8底部，如此便能够确保内框2与外壳1连接的牢固性，能够防止内框2脱离安装槽8。进一步地，在将内框2插入到安装槽8后，再通过热溶胶使内框2固定并密封在安装槽8中。热溶胶固定的方式不仅便于操作，而且固定的较牢固。
在本发明一具体实施例中，在内框2的进气口的端面上设置了防呆凸柱6，如果将有防呆凸柱6的一侧插入到安装槽8中，会出现插不到位的情况，因此，本实施例中的防呆凸柱6能够防止将内框2的进气口和出气口装反。
进一步地，防呆凸柱6还高于外壳1的进气口的端面，如此限定还能够防止将整个滤芯的进气口和出气口装反。
在本发明一具体实施例中，在外壳1的内部设置了支撑梁4，该支撑梁4靠近外壳1的出气口的位置。该支撑梁4用于支撑滤纸3。在滤芯工作的过程 中，空气流会将滤纸3压向外壳1的出气口侧，而支撑梁4能够分担滤纸3的压力，从而延长滤纸3的使用寿命。
在本发明一具体实施例中，在外壳1上设置了拉环7，从而方便将滤芯从空气滤清器的外壳1中拉出。进一步地，选择将拉环7卡接在外壳1上。卡接的形式结构简单，便于实现。
具体的卡接结构如下：拉环7包括环体71和卡扣72。卡扣72设置在环体71的一侧，且卡扣72与环体71相垂直。外壳1的进气口处设置有沿径向向外凸出的凸沿。在凸沿上沿着外壳1的轴向开设有卡孔5。该卡孔5与卡扣72配合。卡扣72受压变形后进入到卡孔5中，之后在卡孔5的下方膨胀开，从而与卡孔5的孔壁之间形成卡接关系。在本实施例中，卡扣72位于卡孔5的下方，环体71与滤纸3的平面平行，或者说环体71能够贴合在滤纸3上，即卡环的设置并没有加大滤芯原有的体积，从而能够使滤芯与空气滤清器的壳体顺利配合。
在本发明一具体实施例中，在外壳1的外壁上设置了凹槽。该凹槽沿着外壳1的周向布置。该凹槽用于盛放密封条。该密封条与空气滤清器的壳体的内壁密封配合。或者说密封条的作用是实现滤芯与空气滤清器的壳体的密封配合，从而防止空气从滤芯与空气滤清器的壳体之间的缝隙通过。
本发明还公开了一种空气滤清器，包括滤芯，该滤芯为上述任意一种滤芯，上述滤芯具有上述效果，具有上述滤芯的空气滤清器同样具有上述效果，故本文不再赘述。
最后，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发 明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种滤芯，其特征在于，包括：
    外壳(1)；
    内框(2)，所述内框(2)与所述外壳(1)相配合，且所述内框(2)与所述外壳(1)连接；
    滤纸(3)，所述滤纸(3)设置在所述内框(2)中，所述滤纸(3)在所述内框(2)的径向上布满所述内框(2)的内腔，且所述滤纸(3)与所述内框(2)连接。
  2. 根据权利要求1所述的滤芯，其特征在于，所述滤纸(3)与所述内框(2)一体化注塑成型。
  3. 根据权利要求1所述的滤芯，其特征在于，在所述外壳(1)内，沿着所述外壳(1)的周向设置有安装槽(8)，所述内框(2)能够插入到该安装槽(8)内；
    所述内框(2)通过热熔胶固定在所述安装槽(8)内。
  4. 根据权利要求3所述的滤芯，其特征在于，所述安装槽(8)靠近所述外壳(1)的出气口设置。
  5. 根据权利要求4所述的滤芯，其特征在于，所述内框(2)的进气口的端面上设置有防呆凸柱(6)。
  6. 根据权利要求1所述的滤芯，其特征在于，在所述外壳(1)的内部，且靠近所述外壳(1)的出气口的位置设置有支撑梁(4)，所述支撑梁(4)用于支撑所述滤纸(3)。
  7. 根据权利要求1所述的滤芯，其特征在于，所述外壳(1)上设置有拉环(7)。
  8. 根据权利要求7所述的滤芯，其特征在于，所述拉环(7)与所述外壳(1)卡接；
    所述拉环(7)包括相互连接的环体(71)和卡扣(72)，所述外壳(1)的进气口具有凸沿，在所述凸沿上沿轴向设置有卡孔(5)，所述卡扣(72)能够卡接于所述卡孔(5)内。
  9. 根据权利要求1所述的滤芯，其特征在于，沿着所述外壳(1)的外周向设置有凹槽，该凹槽内设置有密封条，所述密封条与空气滤清器的壳体的内壁密封配合。
  10. 一种空气滤清器，包括滤芯，其特征在于，所述滤芯为如权利要求1-9任意一项所述的滤芯。
PCT/CN2019/092972 2019-06-10 2019-06-26 一种空气滤清器及其滤芯 WO2020248305A1 (zh)

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