Views: 87 Author: Site Editor Publish Time: 2022-11-15 Origin: Site
People who work tired for a day return home and collapse on the sofa refused to get up, more and more young people conservative spinal disease, cervical spondylosis trouble, so many families also began to have the existence of massage chair. How to inspect the massage chair? For the inspection methods and inspection standards of the massage chair, please see the following:
First, environmental inspection
The temperature is good at 5℃~40℃
The relative humidity should be less than or equal to 80
The prescribed voltage is 220 V±22V and the prescribed frequency is 50Hz±1Hz
Two, performance inspection
Apply 80% of the rated voltage to the massage chair, and it can operate normally.
Voltage fluctuation influence:
Under the condition that the working voltage is ±10% of the rated voltage, the massage chair does not appear abnormal sound and extra vibration, and it works normally.
Iii. Appearance inspection
In appearance, no obvious scars, cracks, stains, rust and other defects that reduce the performance were observed.
The parts shall be assembled according to the requirements of drawings and working instructions. There is no missing or missing assembly phenomenon, and the wrong installation direction shall not occur. All screws are installed according to the specified torque. Must be firmly screwed, not loose, shall not appear floating, stripping phenomenon. The words and ICONS on the nameplate should be bright and clear, without any words or wrong words.
Four, safety performance
① Leakage current detection at room temperature
At room temperature, the leakage current between any pole of the power supply and the basic protective and isolated metal parts and plastic housing is 3.5mA.
(2) Electrical strength detection at room temperature
At room temperature, the massage chair should be able to withstand 1250V and 50Hz between any pole of the power supply and the metal parts of basic protection and isolation. After 1min of experimental voltage, there is no flashover and breakdown phenomenon.
③ Leakage current at operating temperature
When the massage chair works to a stable state, the leakage current between any pole of the power supply and the metal parts and plastic shell of the basic protection and isolation is 3.5mA.
(4) Electrical strength at working temperature
After working to a stable state, any pole of the power supply and the metal parts of basic protection and isolation should be able to withstand the experimental voltage of 1000V and 50Hz for 1min without flashover and breakdown phenomenon.
5. Factory inspection
Inspection of type
Type test must be carried out under any of the following circumstances
① A new trial-produced product
② When the design, process, material changes affect the product performance
③ When a product is produced again after a year's suspension
④ When the product is transferred to the factory
(5) Batch products are inspected regularly once a year
⑥ Similar products evaluation.
The type test of massage chair shall not be less than 1 sets each time.
Criterion of judgment
① The occurrence of a non-accidental failure is judged as unqualified.
(2) If the fault category cannot be determined, the number of faults will be included in the total number of faults, and another prototype should be extracted to carry out the whole test of the project again. If the same fault occurs, the test will be judged as unqualified. If other occasional faults occur, they will be included in the total number of faults in the test.
③ Repair is allowed for accidental failures. All tests of the performance item should be reconducted after repair.
Vi. Mark and specification inspection
Nameplates must be fixed on the designated position of each massage chair. Each nameplate should indicate the product name, model, rated voltage, rated input power or rated current, rated frequency, factory number, manufacturer name or label. In addition, there must be corresponding instructions and warning signs in the relevant parts of the massage chair.
It mainly includes:
1. The ground terminal must be marked with a grounding mark
2. There should be warning signs where there may be danger
3. There should be a switch on and power off sign.
The product instruction manual shall comply with the provisions of GB 9969.1. The instruction manual shall include the following contents
1. Functional use and application scope of the product
2. Product models and specifications
3. Main technical indicators of the product
4. Product appearance
5. Use and maintenance
6. Order instructions