Technical Information
Features of our thermoelectric cooler (module)
There are 4 main reasons for thermoelectric cooler (module) failure.
1. Thermal cycle fatigue
2. Corrosion
3. Migration
4. Crystal failure of thermoelectric element
Our solutions are
- ■GL structure
- ■Moisture proof sealing
- ■Complete quality control
To enable the long life by above. In addition, only products that have passed our standard reliability test can be in our product lineup.
Solution by GL structure for “Thermal Cycle Fatigue”
Generally, a thermoelectric cooler (module) is constructed by soldering (an alloy of tin and lead) between cooling ceramic and copper electrodes, copper electrodes and thermoelectric chips, copper electrodes and heat released ceramic. However, our thermoelectric cooler (module) uses no solder but flexible resin glue between cooling ceramic and copper electrodes. This decreased thermal stress and dramatically increased life. We call this structure as GL (Glue=Adhesive) structure.
Solution by moisture proof sealing for “rust”, “breaking”, “short”
Our thermoelectric cooler (module) has passed various temperatures switching tests, on/off tests, and so on with very good results. In different environments, you can use our highly reliable product without anxiety.
Quality control is completely done to prevent “chip crystal failure”
Our company is not importing and selling another maker’s products. We are a manufacturer selling our thermoelectric cooler produced in-house. Thermoelectric coolers (modules) are made in adherence with our strict quality control system. As a manufacturer, we own plenty of knowledge and techniques, so we can reflect our customer’s needs in products.
Reliability Test
| Test Category | Test Name | Test Condition | Criterion |
|---|---|---|---|
| Life tests | Continuous operation test | 1,000 hours | •Internal resistance value changes less than ±10% •Visual damage •Others |
| ON-OFF operation test | 5,000 cycles | ||
| Polarity switching test | 15,000 cycles | ||
| Environment tests | High-temperature storage test | 90°C 1,000 hours | |
| Low-temperature storage test | -40°C 1,000 hours | ||
| Thermal Shock test | 0°C100°C 10 cycles | ||
| Temperature-humidity cycling test | 10 cycles | ||
| Mechanical Shock Test | Free fall from height of 25cm, 3 times | ||
| Vibration test | 100~2,000Hz 4 cycles each for 3 directions | ||
| Lead pulling test | Pulling strength 10N, 20N, 30N maintained 10 seconds |
About Chinese made thermoelectric coolers
We are frequently asked about the quality of thermoelectric coolers (modules) made by Chinese makers. Based on our test results, high quality products from Chinese makers are (as of 2006) not capable of enough performance and quality to reach the level of acceptance.
Please utilize our technical skills
Please utilize the technical experience in various areas.
- 1.300W thermoelectric power generation technology…Use warm water up to 100°C for thermoelectric power generation.
- 2.500W thermoelectric power generation technology…Use oil up to 250°C for thermoelectric power generation.
- 3.Peltier thermal exchange device with high efficiency…Technology to increase the thermal exchange efficiency by using thermoelectric cooler in thermal exchange device.
The following are our targets
- •Current customers of Z-MAX.
- •Companies that are considering partnering and starting business with Z-MAX.
- ∗Private or corporate level partners and customers are welcome.
Vision of technical proposal
- •Fair and equitable business… Provide equal and open technology affiliation and business opportunities, and extensively look for new technology affiliation and business partners.
- •Development and Success together with partners…Cooperate with suppliers to ensure mutual benefit, and focus the relationship on fair partnership to grow together.
- •Observe norms in society…We follow the law related to technology affiliation and business activity; also, we will not disclose any confidential information obtained from cooperation.