CN2378823Y - Temperature control relay - Google Patents
Temperature control relay Download PDFInfo
- Publication number
- CN2378823Y CN2378823Y CN 99234744 CN99234744U CN2378823Y CN 2378823 Y CN2378823 Y CN 2378823Y CN 99234744 CN99234744 CN 99234744 CN 99234744 U CN99234744 U CN 99234744U CN 2378823 Y CN2378823 Y CN 2378823Y
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- CN
- China
- Prior art keywords
- temperature
- spring
- utility
- model
- shape memory
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- Expired - Fee Related
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Abstract
The utility model relates to a novel temperature control relay which adds a new member for the relay family and is mainly composed of a housing, a driving rod, an offset spring, a spring made of shape memory alloy, and a contact point. The utility model doesn't need motors and power and is controlled to be switched on and off through the temperature sensation of the spring made of shape memory alloy, and the temperature spot of the temperature sensation is arranged within the range of 45 DEG C to 150 DEG C. The range of applicable temperature is wide. When the temperature is high, the utility model can be used for electric power systems. When the temperature is low, the utility model can be made into a miniature temperature control relay. The novel temperature control relay has the advantages of simple structure, reliable work, long service life, and easy industrial production.
Description
The utility model relates to electrical equipment, and mainly relating to relay specifically is a kind of thermostat relay.
The development of digital circuit; it is very extensive that the characteristic of switching control makes relay use in fields such as electric control system, industrial automation system, microelectronic control systems; electrical equipment, instrument, equipment long-play can generate heat and damage; need overheat protector, but but heat, heat and store the device that many occasions such as monitoring that furnaceman makes process all need a kind of temperature-sensitive auto switching.
At present, sell on the market and industrial extensive use mostly be the dual metal type temperature relay, it is to control disconnection with the distortion of bimetallic different heat expansion coefficient, it resets and will lean on a resetting device to realize, so its complex structure, volume is big, the control circuit complexity.
The purpose of this utility model is that a kind of new type of relay will be provided is the temperature-sensitive relay, and it does not need motor, need not switch on, by its Push And Release of ambient temperature control, its actuating force is big, simple in structure, reliable operation, can make large-scalely as required, also can make microdevice.
Below in conjunction with accompanying drawing the utility model is comprised that embodiment elaborates.
Accompanying drawing 1 is a structural representation of the present utility model.
The thermostat relay that realization of the present utility model is made up of housing 1, sets of contacts 7, supporting slice 6 etc., as shown in Figure 1, in the intrinsic sets of contacts 7 of the right-hand member of housing 1, as a pair of reed single-break electrical contact; Left end is equipped with adjusting nut 8, the stressed size of adjusting nut 8 scalable shape memory alloy springs; Drive rod 2 is contained on adjusting nut 8 and the supporting slice 6, and can move thereon; Drive rod 2 faces the contact pressure point of sets of contacts 7; Drive rod 2 is positioned at the space center of housing 1; Washer 5 is fixed on the drive rod 2, and drive rod 2 is divided into two parts, and wherein a part is set with shape memory spring 3, and it is spacing by adjusting nut 8 and washer 5, and another part is set with biasing spring 4, and it is spacing by washer 5 and supporting slice 6; The stressed big I of shape memory spring 3 is regulated by adjusting nut 8, can also regulate with the silk footpath and the diameter of bias spring 4, thereby the transformation temperature of change shape memory spring 3 reaches the purpose of regulating serviceability temperature.
Realization of the present utility model is that also according to different needs, shape memory spring 3 can be made extension spring, also can make stage clip, can put with biasing spring 4 serials, also can walk abreast with biasing spring 4 and put, can also Multiple Combination for high-power applications.
The utility model has utilized the shape memory effect of marmem.Marmem at low temperatures just transformation temperature produce plastic deformation with lower stress, once being heated to more than the transformation temperature, it will return to the high temperature shape.The utility model is to be the material of shape memory spring 3 as the temperature control driving spring with Ti-Ni alloy.Shape memory spring 3 is in the martensite attitude at normal temperatures, and its yield strength δ s is very low, under the effect of bias spring, shape memory alloy spring 3 compressions, when ambient temperature is elevated to the reverse transformation temperature when above, shape memory alloy spring produces phase transformation and produces distortion, driving mechanism work.Also utilized simultaneously the stress-induced martensite phase-change characteristic of marmem, promptly realized by adjusting nut.
During normal temperature, shape memory alloy spring 3 is biased spring 4 compressions, and the end face of drive rod 2 and the pressure point of sets of contacts 7 are disconnected.When after ambient temperature raises, reaching relevant temperature (this temperature can be set arbitrarily) between 45 ℃～150 ℃, shape memory alloy spring 3 elongations drive drive rod 2 and move right, its end face contacts with the pressure point of sets of contacts, the normally closed of sets of contacts 7 opened, the normal switching closed, thereby realized disconnecting control.
Otherwise; when temperature is reduced to phase transition temperature; under the elastic force effect of biasing spring 4; drive rod 2 is to left movement; drive rod 2 is separated with the sets of contacts pressure point, and contact sets 7 is recovered the normal position again, and the utility model adapts to especially uses electronic instrument; the protective circuit of equipment, all need be subjected to temperature controlled circuit warning system and other.
Owing to adopted the structure of shape memory alloy spring and combination with it to make the utility model not need motor, do not need battery, must not switch on, with regard to the may command Push And Release, structure can be big by variation of ambient temperature, also can make miniature, actuating force is big, and can realize automatically control in big temperature range, can be used for temperature control, warning etc. and reaches all and need be subjected to temperature to control various occasions, because the structure of simplifying and unique function, it is the new member that increases of temperature relay family.
Claims (2)
1. thermostat relay, comprise housing (1), sets of contacts (7), supporting slice (6), adjusting nut (8), it is characterized in that housing (1) one end is connected with adjusting nut (8) threadably, drive rod (2) is loaded on adjusting nut (8) and the supporting slice (6), and can move thereon, being fixed with washer (5) on the drive rod (2), washer (5) is divided into two parts with drive rod (2), shape memory alloy spring (3) is spacing by adjusting nut (8) and washer (5), bias spring (4) is spacing by washer (5) and supporting slice (6), and sets of contacts (7) places housing (1) right-hand member, and an end of drive rod (2) passes the pressure point of supporting slice (6) over against sets of contacts (8).
2. thermostat relay according to claim 1 is characterized in that shape memory spring (5) according to the purposes difference, can make extension spring, also can make stage clip, can with biasing spring (4) string dress, also can be parallel and put with bias spring (4), can also Multiple Combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234744 CN2378823Y (en) | 1999-06-30 | 1999-06-30 | Temperature control relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234744 CN2378823Y (en) | 1999-06-30 | 1999-06-30 | Temperature control relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2378823Y true CN2378823Y (en) | 2000-05-17 |
Family
ID=34022842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234744 Expired - Fee Related CN2378823Y (en) | 1999-06-30 | 1999-06-30 | Temperature control relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2378823Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192795A (en) * | 2021-04-07 | 2021-07-30 | 成都理工大学 | Multi-temperature step control device and method based on shape memory alloy |
| WO2024051963A1 (en) * | 2022-09-07 | 2024-03-14 | Eaton Intelligent Power Limited | Actuation system with a temperature-controlled actuation material |
-
1999
- 1999-06-30 CN CN 99234744 patent/CN2378823Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192795A (en) * | 2021-04-07 | 2021-07-30 | 成都理工大学 | Multi-temperature step control device and method based on shape memory alloy |
| WO2024051963A1 (en) * | 2022-09-07 | 2024-03-14 | Eaton Intelligent Power Limited | Actuation system with a temperature-controlled actuation material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |