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The toggle switch is designed to switch the circuit by turning the switch handle to turn the circuit on or off. Toggle Switches
Commonly used varieties are unipolar double, single pole three, bipolar double and bipolar three. It is generally used in low voltage circuits, featuring flexible slider action, stable and reliable performance, and toggle switch is widely used. Yu: various instruments / instrumentation equipment, all kinds of electric toys, fax machines, audio equipment, medical equipment, beauty equipment, and other electronic products! . Table 9-10 lists the main characteristic parameters and outline structure of some toggle switches.
Toggle switch classification toggle switch is divided into: small current toggle switch (right), and large current toggle switch (left). Small current toggle switches are commonly used in electronic toys and digital communications. High current is generally used in electrical appliances, machinery, etc.
Toggle switch specification and electrical performance rated power: DC50V 0.3A
Operating temperature range: -20 °C ~ 60 °C
Toggle switch performance in all aspects:
1. Electrical performance specifications
1. Contact resistance test:
Tested under a small current (100 mA).
Requirements: Must be below 30 milliohms.
2. Insulation resistance test:
Enter 500V DC for 1 minute and test by the following contact method:
(1) Between the contact terminals.
(2) Between the plastic body and the foot.
Requirements: Must reach more than 100 megohms.
3. Withstand voltage test:
Input AC 500V (50-60Hz) voltage, 1 minute sensitivity current is 0. 5mA, test by the following contact method:
(1) between the legs
(2) between the foot and the outer casing
Requirements: There are no abnormalities such as insulation damage.
2. Mechanical performance specifications
1. The general force of action is: 250+_50gf
2. Terminal strength
Add force (500gf) to the apex in either direction for 1 minute.
There are no cracks, swaying, etc. in the row of feet.
Requirements: Satisfied with mechanical and electrical properties.
3. Test standard status
Test the temperature, humidity, and pressure without specifying:
(1) Temperature is 5 ° C ~ 35 ° C
(2) Humidity is 45%~85%
(3) Air pressure is 80Kpa~106Kpa
Third, durability
Solderability test
The top of the terminal is immersed in a solder bath with a depth of 1 mm, a temperature of 230 ± 5 ° C, and a time of 3 ± 0.5 seconds.
note:
(1) Welding time should be less than 3 seconds
(2) The welding area should be more than 80%.
2. Solder resistance test
When the welding furnace is welded, the temperature is controlled at 260±5°C, the furnace time is 3±0.5 seconds, and the thickness of the substrate is 1.0mm.
When the hand is welded, the temperature should be controlled at 320±5°C for 3±0.5 seconds.
Requirements: must meet the body without deformation, satisfied with mechanical and electrical energy.
3. Life test
No load: The operator performs a 100,000-fold no-load test at a frequency of 60 times per minute.
Claim:
(1) Contact resistance cannot exceed 200mΩ
(2) Other, satisfied with mechanical and electrical properties.
4. Heat resistance test
Placed in a temperature of 85 ± 2 ° C for 96 hours, and then placed in normal room temperature for 1 hour to determine.
Requirements: no abnormal appearance, satisfied with mechanical and electrical performance.
5. Cold resistance test
Place 40 ± 2 °C. The relative humidity is 90~96% after 96 hours in the environment.
The samples were placed in a normal environment for 1 hour and tested.
Requirements: no abnormal appearance, satisfied with mechanical and electrical properties.
6. Moisture test
Place 40 ± 2 °C. The relative humidity is 90~96% after 96 hours in the environment.
The samples were placed in a normal environment for 1 hour and tested.
Requirements: no abnormal appearance, satisfied with mechanical and electrical properties.
Toggle switch components and various components processing process toggle switch is mainly assembled by the following components through the corresponding process:
1. Iron shell (material: generally iron; treatment process: by electroplating nickel or blackening process to prevent oxidation)
2. Plastic handle (material: generally POM material, if there is fire retardant and high temperature resistance requirements, then PA nylon material processing technology is often used: injection molding)
3. Terminal (material: generally phosphor bronze; treatment process: electroplating silver)
4. Insulation bottom plate (material: electric wood board; processing technology: stamping)
5. Contact chip (material: generally phosphor bronze; treatment process: electroplating silver)
6. Round wave beads (material: generally stainless steel; treatment process: electroplated nickel)
7. Slingshot (Material: Bronze; Process: Stamping)
8. Decorative oil (Material: a kind of red oil or green oil chemical oil, applied to the contact part of the terminal and the bottom plate, plays a decorative role. Generally required non-toxic, environmentally friendly)
Toggle switch application range
1. Audio and video products: MP3, MP4 audio;
2. Digital products: digital cameras, digital video cameras, etc.;
3. Communication products: mobile phones, car phones, telephones, building equipment, PDAs, etc.;
4. Security products: video intercom, monitor, etc.;
5. Toys: electronic toys, etc.;
6. Computer products: camera, etc.;
7. Fitness equipment: electronic body fat scales, treadmills, etc.;
8. Medical equipment: sphygmomanometer, thermometer, hospital call system, etc.
Toggle switch mechanical performance specifications
1, the action force is: 250 + _50gf
2. Terminal strength: Add force (500gf) to the tip of any direction for 1 minute. There is no cracking, swaying and other abnormalities in the foot. The requirement of the toggle switch: satisfied with mechanical and electrical performance.
3, test standard status: test temperature, humidity, if not specified
The air pressure of the toggle switch is as follows:
(1) Humidity is 45%~85%
(2) Air pressure is 80Kpa~106Kpa
(3) Temperature is 5 ° C ~ 35 ° C
Toggle switches are widely used in: various instruments / instrumentation equipment, all kinds of electric toys, fax machines, audio equipment, medical equipment, beauty equipment, and other electronic products!
Toggle switch performance characteristics Toggle switch adopts integrated circuit technology and SMT external device technology to manufacture a new generation of photoelectric switch devices with delay, broadening, external synchronization, mutual interference resistance, high reliability, stable working area and self-diagnosis. Intelligent features. This novel photoelectric switch is an active photoelectric detection system type electronic switch using pulse modulation. The cold light source used has infrared light, red light, green light and blue light, etc., which can be contactless and quickly and without damage. Controls the state and action of various solids, liquids, transparents, black bodies, soft bodies and smoke.
The waterproof and explosion-proof switch contact type travel switch has the disadvantages of low response speed, poor precision, easy detection of damage to the object to be detected and short life, and the proximity of the transistor proximity switch is short, and the non-metallic material cannot be directly detected. However, the new photoelectric switch overcomes the above shortcomings, and has small volume, many functions, long life, high precision, fast response speed, long detection distance and strong resistance to light, electricity and magnetic interference.
The type of the toggle switch and the description of the mechanical performance specifications The toggle switch is used to switch the circuit by turning the switch handle to turn the circuit on or off. The commonly used varieties of the toggle switch are single pole double position, single pole three position, bipolar double position and bipolar three position. It is generally used for low voltage circuits, and has the characteristics of flexible slider action and stable and reliable performance.
What should you pay attention to when using the toggle switch?
1. Use chemicals with caution
The use of a synthetic resin such as polycarbonate for the toggle switch base plate should avoid exposing the potentiometer to a strong atmosphere of chemicals such as ammonia, amines, alkali solutions, threonines, ketones, esters, and halocarbons.
2. Use flux with caution
Water-soluble flux should be avoided when soldering, otherwise it will adversely affect the metal and other materials that make up the toggle switch.
3. Solder
Wiring design and soldering methods should be avoided, and the molten tin flows to the plane of the PC board, which can cause poor contact.
4. Low temperature work
When the product is used in low temperature environment, such as the car radio or car audio of the cold belt, the company provides comfortable products according to customer requirements, please specify when ordering.
5. Slide length
The shorter the length, the better (at least 5mm), the shorter the length of the slider, the better the feel, the higher the output point, the worse the hand feel.
6. Drive arm
Do not move the operating point away from the centerline of the slider. For the same reason, the shorter the distance B between the two, the better.
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