WO2018214091A1 - 一种空气净化器 - Google Patents

一种空气净化器 Download PDF

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WO2018214091A1
WO2018214091A1 PCT/CN2017/085865 CN2017085865W WO2018214091A1 WO 2018214091 A1 WO2018214091 A1 WO 2018214091A1 CN 2017085865 W CN2017085865 W CN 2017085865W WO 2018214091 A1 WO2018214091 A1 WO 2018214091A1
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air
air pressure
filter
pressure sensor
pressure value
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PCT/CN2017/085865
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English (en)
French (fr)
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邹剑寒
谢立峰
朱庆镇
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邹剑寒
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Publication of WO2018214091A1 publication Critical patent/WO2018214091A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing

Definitions

  • the utility model relates to an air purifying device, in particular to an air purifier.
  • the existing air purifier generally has a filter for filtering dust and the like in the air. As the use time increases, the degree of loss of the filter increases, and the filtering function that can be achieved gradually decreases.
  • the existing air purifier generally has a warning module indicating the degree of loss of the filter. When the degree of loss of the filter is high, the warning module sends a warning message to the user to remind the user to clean or replace the filter.
  • Patent application CN104330329A discloses a solution for judging the degree of filter loss by collecting the air pressure value after the air flows through the filter, and the accuracy of the collected air pressure value affects the judgment of the degree of filter loss. How to make the collected air pressure value more accurate is an urgent problem to be solved.
  • the technical problem to be solved by the present invention is to provide an air purifier to improve the accuracy of the air pressure value after the collected air flows through the filter.
  • the utility model provides an air purifier, which has a filter, a pressure sensor, a warning module and a control module; the air pressure sensor is used to collect the air pressure value after the air flows through the filter, and the warning module is used to provide the user with the air pressure.
  • the information about the degree of loss of the filter, the control module can adjust the working state of the warning module according to the air pressure value collected by the air pressure sensor; the air pressure sensor comprises: an collecting portion; and a rectifying grid for rectifying the air flowing through the filter; The flow channel is located between the collecting portion and the rectifying grid, and the collecting portion is configured to collect the air pressure value of the air flowing in from the guiding channel.
  • the flow guiding channel is a horn structure that can concentrate the air flowing in from the guiding channel to the collecting portion.
  • the size of the pores on the rectifying grid facing the outlet of the flow guiding channel is larger than the gas not being directed to the outlet of the guiding channel Hole size.
  • the rectifying grid is detachably disposed at an air inlet position of the flow guiding channel.
  • the utility model has the following technical effects:
  • the eddy current can be turned into a laminar flow along the diversion channel to the collecting portion, thereby avoiding the eddy current affecting the accuracy of the collected air pressure value;
  • the air can be collected along the guiding channel to the collecting portion, and the accuracy of the collected air pressure value is improved;
  • Figure 1 is a front elevational view of the air purifier of the present invention
  • Figure 3 is a diagram showing the positional relationship between the air pressure sensor and the fan
  • Figure 4 depicts a front view of the air pressure sensor
  • Figures 5 and 6 illustrate exploded views of different states of the air pressure sensor
  • Figure 7 is a flow diagram showing the state of air flow through the rectifying grid
  • Figure 8 is a diagram showing the logical relationship of each functional module of the air purifier.
  • the air purifier of the present invention has a filter 2, a pressure sensor 5, a warning module and a control module.
  • the air pressure sensor 6 is used to collect the air pressure value after the air flows through the filter, and the warning module is used for the user.
  • the control module can adjust the working state of the warning module according to the air pressure value collected by the air pressure sensor;
  • the air pressure sensor 6 includes: an collecting portion 6E; and a rectifying grid 6C for rectifying the air flowing through the filter
  • the flow guiding channel 6D is located between the collecting portion 6E and the rectifying grid 6C, and the collecting portion 6E is configured to collect the air pressure value of the air flowing in from the guiding channel 6D.
  • the rectifying grid 6C can rectify the airflow after passing through the filter 2, causing the eddy current to become laminar.
  • the air purifier may include a casing 3, a front cover 1 and a rear cover 4 on the left and right sides of the casing 3, and the filter 2 is two sets disposed between the front cover 1 and the casing 3.
  • the fan 5 is located between the casing 3 and the rear cover 4, the front cover 1 has an air inlet through hole, and the top of the casing 3 has an air outlet hole.
  • the air pressure sensor 6 is located at the air outlet end of the fan 5, and the air inlet end of the air pressure sensor 6 faces downward to detect the air pressure value of the air filtered by the filter 2.
  • the control module is electrically connected to the warning module, the air pressure sensor 6, and the driving module that drives the fan 5, and the power module is used to supply power to the control module, the air pressure sensor and the driving module.
  • the control module can be configured on the upper side of the air purifier for the user to operate.
  • the warning module can be multiple sets of indicators with different colors, such as red, yellow and blue, respectively indicating different loss levels of the filter 2; the warning module can also be a buzzer, when the filter loss level is high, the buzzer An alarm can be sent to alert the user to clean or replace the filter.
  • the control module controls the power module to output a voltage to the drive module to drive the fan 5 to rotate.
  • the fan 5 rotates to drive the air into the air purifier along the air inlet end A1 on the left side, and after filtering through the filter 2, the air purifier flows out along the upper air outlet end A2.
  • the control module controls the air pressure sensor 6 to collect the air pressure value of the air flowing through the filter 2, and controls the working state of the warning module according to the collected air pressure value to adjust the information of the degree of filter loss provided to the user.
  • the air pressure sensor of the present invention includes a first housing 6A, a second housing 6B, a rectifying grid 6C, a flow guiding passage 6D, a collecting portion 6E, and a circuit board 6F.
  • the first housing 6A and the second housing 6B may be fitted to each other to encapsulate the collecting portion 6E and the circuit board 6F.
  • the collecting unit 6E is a collecting unit disposed on the circuit board 6F for collecting the air pressure value.
  • the first housing 6A is provided with a through hole corresponding to the collecting portion 6E, and the flow guiding channel 6D is disposed in the first housing 6A.
  • the rectifying grid 6C is disposed at the air inlet port of the flow guiding passage 6D, and the air is rectified by the rectifying grid 6C to flow along the guiding passage 6D to the collecting portion 6E.
  • the flow guiding passage 6D has a flared structure which can collect the air flowing in from the flow guiding passage 6D to the collecting portion 6E.
  • the flow guiding channel 6D can also be other structures.
  • the size of the pores on the rectifying grid 6C at the outlet of the flow guiding channel 6D is larger than the size of the pores not in the outlet of the guiding channel 6D, as shown in FIG. 6C, the pore size of the rectifying grid 6C is from the center position. Gradually become smaller toward the peripheral position.
  • the pore size of the rectifying grid 6C may also be a uniform size.
  • the rectifying grid 6C is detachably disposed at the air inlet position of the flow guiding channel 6D, so that the manufacturer can adjust the specifications of the rectifying grid used according to different configurations.
  • the flow guiding channel 6D may also be a detachable component.
  • the air purifier of the present invention is not limited to the above embodiment, and may be an air purifier with a filter such as a new fan, an air conditioner, or a range hood.
  • the air purifier is not limited to an air purifying device that can work alone, and may be an air purifying device on a product such as a car.

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

Abstract

一种空气净化器，具有过滤器（2）、气压传感器（6）、警示模块和控制模块；气压传感器（6）用以采集空气流经过滤器之后的气压值，警示模块用以向用户提供过滤器的损耗程度的信息，控制模块可根据气压传感器（6）采集的气压值调整警示模块的工作状态；所述气压传感器（6）包含：采集部（6E）；整流栅格（6C），用以对流经过滤器（2）之后的空气进行整流；导流通道（6D），位于采集部（6E）和整流栅格（6C）之间，所述采集部（6E）用以采集自导流通道（6D）流入的空气的气压值。通过整流栅格（6C）对流经过滤器（2）之后的空气进行整流，可以使涡流变层流沿导流通道（6D）流至采集部（6E），避免了涡流影响采集的气压值的精确度。

Description

一种空气净化器 技术领域
本实用新型涉及空气净化设备，具体地，涉及一种空气净化器。
背景技术
随着生活品质要求的提高，空气净化器已越来越广泛地得到应用。现有的空气净化器内一般具有用于过滤空气中粉尘等物质的过滤器，随着使用时间的增加，过滤器的损耗程度不断增加，其能达到的过滤功能逐渐降低。现有的空气净化器一般带有指示过滤器的损耗程度的警示模块，当过滤器的损耗程度较高时，警示模块向用户发出警示信息提醒用户清理或更换过滤器。专利申请CN104330329A公开了一种通过采集空气流经过滤器之后的气压值来判断过滤器损耗程度的方案，所采集的气压值的的精确度会影响对过滤器损耗程度的判断。如何使采集的气压值更为精确是亟需解决的问题。
实用新型内容
本实用新型所要解决的技术问题是提供一种空气净化器以提高所采集的空气流经过滤器之后的气压值的精确度。
为解决上述技术问题，本实用新型提供一种空气净化器，具有过滤器、气压传感器、警示模块和控制模块；气压传感器用以采集空气流经过滤器之后的气压值，警示模块用以向用户提供过滤器的损耗程度的信息，控制模块可根据气压传感器采集的气压值调整警示模块的工作状态；所述气压传感器包含：采集部；整流栅格，用以对流经过滤器之后的空气进行整流；导流通道，位于采集部和整流栅格之间，所述采集部用以采集自导流通道流入的空气的气压值。
优选地，所述导流通道为可使自导流通道流入的空气聚流至所述采集部的喇叭形结构。
优选地，整流栅格上正对于导流通道出口的气孔尺寸大于未正对于导流通道出口的气 孔尺寸。
优选地，所述整流栅格可拆卸地配置于所述导流通道的进风口位置。
通过采用上述技术方案，本实用新型具有以下技术效果：
1、通过整流栅格对流经过滤器之后的空气进行整流，可以使涡流变成层流沿导流通道流至采集部，避免了涡流影响采集的气压值的精确度；
2、通过采用喇叭形形状的导流通道，使空气可沿导流通道的聚流至采集部，且助于提高采集的气压值的精确度；
3、通过使整流栅格上正对于导流通道出口的气孔尺寸大于未正对于导流通道出口的气孔尺寸，使得沿正对于导流通道出口的气孔进入的空气流量相对较大，相较于自其余气孔进入的空气，该部分空气未直接冲击导流通道内壁而直接作用于采集部，因而可在充分利用导流通道进行聚流的同时，最大程度地减轻导流通道内壁反作用于气流对采集气压值的精确度产生的影响。
附图说明
图1绘示了本实用新型空气净化器的主视图；
图2绘示了本实用新型空气净化器的爆炸图；
图3绘示了气压传感器与风机的位置关系图；
图4绘示了气压传感器的主视图；
图5和图6绘示了气压传感器不同状态的爆炸图；
图7绘示了空气经过整流栅格的气流状态图；
图8绘示了空气净化器各功能模块的逻辑关系图。
具体实施方式
结合图1至图8，本实用新型的空气净化器具有过滤器2、气压传感器5、警示模块和控制模块，气压传感器6用以采集空气流经过滤器之后的气压值，警示模块用以向用户 提供过滤器的损耗程度的信息，控制模块可根据气压传感器采集的气压值调整警示模块的工作状态；气压传感器6包含：采集部6E；整流栅格6C，用以对流经过滤器之后的空气进行整流；导流通道6D，位于采集部6E和整流栅格6C之间，采集部6E用以采集自导流通道6D流入的空气的气压值。结合图7，整流栅格6C可对流经过滤器2之后的气流进行整流，使涡流变成层流。
结合图1至图3，空气净化器可包含机壳3，位于机壳3左右两侧的前盖1和后盖4，过滤器2为两组，配置于前盖1和机壳3之间，风机5位于机壳3与后盖4之间，前盖1具有进风通孔，机壳3顶部具有出风通孔。气压传感器6位于风机5的出风端，且气压传感器6的进风端朝下以检测经过滤器2过滤后的空气的气压值。控制模块分别与警示模块、气压传感器6和驱动风机5工作的驱动模块电连接，电源模块用以向控制模块、气压传感器和驱动模块进行供电。控制模块可配置于空气净化器上侧，以便用户进行操作。警示模块可为多组具有不同颜色的指示灯，例如红、黄、蓝，分别表示过滤器2不同损耗等级；警示模块亦可为蜂鸣器，当过滤器损耗等级较高时，蜂鸣器可发出警报信号提醒用户清理或更换过滤器。控制模块如何根据气压传感器6采集的气压值判断过滤器的损耗程度的具体技术可参考专利申请CN104330329A的说明，其系为现有技术，故本文不同赘述。在工作时，控制模块控制电源模块向驱动模块输出电压，驱动风机5转动。风机5转动带动空气沿左侧的进风端A1进入空气净化器内，经过滤器2过滤后，沿上侧的出风端A2流出空气净化器。控制模块控制气压传感器6采集流经过滤器2之后的空气的气压值，并根据所采集的气压值控制警示模块的工作状态，以调整向用户提供的过滤器损耗程度的信息。
结合图4至图7，本实用新型的气压传感器包含第一壳体6A、第二壳体6B、整流栅格6C、导流通道6D、采集部6E和电路板6F。第一壳体6A和第二壳体6B可相互嵌合，以封装采集部6E和电路板6F。采集部6E为配置于电路板6F上的用以采集空气压力值的采集单元。第一壳体6A上开设有对应于采集部6E的通孔，导流通道6D配置于第一壳体6A对 应于第一壳体6A的通孔的位置，整流栅格6C配置于导流通道6D的进风口位置，空气经整流栅格6C整流后可沿导流通道6D流至采集部6E。
如图5所示，在本实施例中，导流通道6D喇叭形结构，其可使自导流通道6D流入的空气聚流至采集部6E。导流通道6D亦可为其它结构。在本实施例中，整流栅格6C上正对于导流通道6D出口的气孔尺寸大于未正对于导流通道6D出口的气孔尺寸，如图6C所示，整流栅格6C的气孔尺寸自中心位置向外围位置逐渐变小。整流栅格6C的气孔尺寸亦可为均匀大小。在一实施例中，整流栅格6C可拆卸地配置于导流通道6D的进风口位置，以便生产商根据不同的配置需要调整所使用的整流栅格的规格。另外，导流通道6D亦可为可拆卸的部件。
本实用新型的空气净化器并不限于上述实施例，其亦可为新风机、空调机、排油烟机等带有过滤器的空气净化器。该空气净化器并不限于可单独工作的空气净化设备，其亦可为配置汽车等产品上的空气净化设备。
以上即为本实用新型的具体实施方式。对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进。这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。

Claims (4)

  1. 一种空气净化器，具有过滤器、气压传感器、警示模块和控制模块；气压传感器用以采集空气流经过滤器之后的气压值，警示模块用以向用户提供过滤器的损耗程度的信息，控制模块可根据气压传感器采集的气压值调整警示模块的工作状态；其特征在于，所述气压传感器(6)包含：
    采集部(6E)；
    整流栅格(6C)，用以对流经过滤器之后的空气进行整流；
    导流通道(6D)，位于采集部(6E)和整流栅格(6C)之间，所述采集部(6E)用以采集自导流通道(6D)流入的空气的气压值。
  2. 根据权利要求1所述的空气净化器，其特征在于，所述导流通道(6D)为可使自导流通道(6D)流入的空气聚流至所述采集部(6E)的喇叭形结构。
  3. 根据权利要求2所述的空气净化器，其特征在于，整流栅格上正对于导流通道出口的气孔尺寸大于未正对于导流通道出口的气孔尺寸。
  4. 根据权利要求1所述的空气净化器，其特征在于，所述整流栅格(6C)可拆卸地配置于所述导流通道(6D)的进风口位置。
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