# US 2018/0024090 A1 · Formaldehyde detecting apparatus, and air treatment apparatus having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0024090 A1 - Document ID: US20180024090A1 - Status: Published application - Kind: A1 - Application number: 15/653,797 - Filed: 2017-07-19 - Published: 2018-01-25 - Earliest claimed: 2016-07-25 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Tae-gyu KIM; Jae-ho BAEK; Jong-soo HONG; Si-hoon LEE; Jeong-su HAN - Web page: https://patentgrep.com/patent/US20180024090A1 ## CPC - G01N 27/4045: {for gases other than oxygen} - F24F 11/30: for purposes related to the operation of the system, e.g. for safety or monitoring - G01N 1/2273: {Atmospheric sampling} - G01N 27/4163: {checking the operation of, or calibrating, the measuring apparatus (G01N27/3274, G01N27/4175 and G01N33/0006 take precedence)} - G01N 33/0006: {Calibrating gas analysers} - G01N 33/0009: {General constructional details of gas analysers, e.g. portable test equipment (devices for withdrawing samples in the gaseous state G01N1/22)} - G01N 33/0047: {Organic compounds} - F24F 2110/50: Air quality properties - Y02B 30/70: Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A formaldehyde detecting apparatus includes a formaldehyde sensor configured to measure concentration of formaldehyde in air; a printed circuit board on which the formaldehyde sensor is disposed, the printed circuit board including a signal processor configured to process a signal output from the formaldehyde sensor; a fixing member disposed on the printed circuit board, the fixing member configured to fix the formaldehyde sensor, wherein the fixing member prevents the formaldehyde sensor from oscillating with respect to the printed circuit board by external vibration; and a power supply configured to supply a voltage capable of stabilizing an output signal to the signal processor. ## Claims ### Claim 1 A formaldehyde detecting apparatus comprising: a formaldehyde sensor configured to measure concentration of formaldehyde in air; a printed circuit board on which the formaldehyde sensor is disposed, the printed circuit board including a signal processor configured to process a signal output from the formaldehyde sensor; a fixing member disposed on the printed circuit board, the fixing member configured to fix the formaldehyde sensor, wherein the fixing member prevents the formaldehyde sensor from oscillating with respect to the printed circuit board by external vibration; and a power supply configured to supply a voltage capable of stabilizing an output signal to the signal processor. ### Claim 2 (depends on 1) The formaldehyde detecting apparatus of claim 1, wherein the fixing member comprises, a base portion configured to fix and support the formaldehyde sensor; and a fastening portion vertically extending from the base portion, the fastening portion configured to fix the base portion to the printed circuit board. ### Claim 3 (depends on 2) The formaldehyde detecting apparatus of claim 2, wherein the base portion of the fixing member comprises a housing into which the formaldehyde sensor is inserted. ### Claim 4 (depends on 2) The formaldehyde detecting apparatus of claim 2, wherein the fastening portion comprises a pair of hooks, and wherein the printed circuit board is provided with a pair of fastening holes into which the pair of hooks is inserted. ### Claim 5 (depends on 2) The formaldehyde detecting apparatus of claim 2, wherein the fixing member comprises a support portion provided on a lower surface of the base portion, and wherein the base portion is located at a predetermined height on the printed circuit board and is kept parallel to the printed circuit board by the support portion. ### Claim 6 (depends on 2) The formaldehyde detecting apparatus of claim 2, wherein the formaldehyde sensor is fixed to an upper surface of the base portion with an adhesive or a double-sided tape. ### Claim 7 (depends on 1) The formaldehyde detecting apparatus of claim 1, wherein the power supply comprises a regulator that lowers a voltage of a supplied power, removes noise of the supplied power, and output a stabilized voltage. ### Claim 8 (depends on 7) The formaldehyde detecting apparatus of claim 7, wherein the voltage supplied to the regulator is 12V, and the voltage output from the regulator is 5V. ### Claim 9 (depends on 7) The formaldehyde detecting apparatus of claim 7, wherein deviation of the voltage output from the regulator is 0.1% or less. ### Claim 10 (depends on 1) The formaldehyde detecting apparatus of claim 1, further comprising: an analog-to-digital converter electrically connected to the signal processor and configured to convert the signal output from the signal processor into a digital signal. ### Claim 11 An air treatment apparatus comprising: a formaldehyde detecting apparatus provided with a formaldehyde sensor capable of measuring concentration of formaldehyde in air; and an air suction apparatus, wherein the formaldehyde detecting apparatus comprises, a printed circuit board on which the formaldehyde sensor is disposed, the printed circuit board including a signal processor configured to process a signal output from the formaldehyde sensor; a fixing member disposed on the printed circuit board, the fixing member configured to fix the formaldehyde sensor, wherein the fixing member prevents the formaldehyde sensor from oscillating with respect to the printed circuit board by external vibration; and a power supply provided in the printed circuit board, the power supply configured to supply a stabilized voltage to the signal processor. ### Claim 12 (depends on 11) The air treatment apparatus of claim 11, wherein the fixing member comprises, a base portion configured to fix and support the formaldehyde sensor; and a fastening portion vertically extending from the base portion, the fastening portion configured to fix the base portion to the printed circuit board. ### Claim 13 (depends on 12) The air treatment apparatus of claim 12, wherein the base portion of the fixing member comprises a housing into which the formaldehyde sensor is inserted. ### Claim 14 (depends on 11) The air treatment apparatus of claim 11, wherein the power supply comprises a regulator that lowers a voltage of a supplied power, removes noise of the supplied power, and output a stabilized voltage. ### Claim 15 (depends on 11) The air treatment apparatus of claim 11, further comprising: an analog-to-digital converter electrically connected to the signal processor and configured to convert the signal output from the signal processor into a digital signal. ### Claim 16 (depends on 15) The air treatment apparatus of claim 15, further comprising: a number display configured to display the digital signal output from the analog-to-digital converter by numerals. ### Claim 17 (depends on 16) The air treatment apparatus of claim 16, wherein the number display is configured to display a number below a decimal point. ### Claim 18 (depends on 15) The air treatment apparatus of claim 15, further comprising: an identifying portion configured to compare the digital signal output from the analog-to-digital converter with a reference value of a formaldehyde concentration; and an audio output portion configured to output a comparing result of the identifying portion by sound. ### Claim 19 (depends on 15) The air treatment apparatus of claim 15, further comprising: an adjusting portion configured to adjust the digital signal output from the analog-to-digital converter. ### Claim 20 (depends on 15) The air treatment apparatus of claim 15, further comprising: a communication portion configured to output the digital signal output from the analog-to-digital converter to an external device.