CN214588608U - Multi-temperature step control device based on shape memory alloy - Google Patents
Multi-temperature step control device based on shape memory alloy Download PDFInfo
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- CN214588608U CN214588608U CN202120704463.1U CN202120704463U CN214588608U CN 214588608 U CN214588608 U CN 214588608U CN 202120704463 U CN202120704463 U CN 202120704463U CN 214588608 U CN214588608 U CN 214588608U
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims description 95
- 230000003068 static effect Effects 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 17
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 230000006870 function Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 8
- 239000000956 alloy Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- LMBUSUIQBONXAS-UHFFFAOYSA-N [Ti].[Fe].[Ni] Chemical compound [Ti].[Fe].[Ni] LMBUSUIQBONXAS-UHFFFAOYSA-N 0.000 description 1
- WCERXPKXJMFQNQ-UHFFFAOYSA-N [Ti].[Ni].[Cu] Chemical compound [Ti].[Ni].[Cu] WCERXPKXJMFQNQ-UHFFFAOYSA-N 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000003578 releasing effect Effects 0.000 description 1
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Abstract
The utility model discloses a many temperature ladder controlling means based on shape memory alloy provides one kind and not only can improve temperature control system's reliability and universality, and the mechanism is simple moreover, simple to operate, do not need control power, temperature free setting's temperature automatic control device based on memory alloy. The utility model discloses a device is equipped with memory alloy spring, drive mechanism, on-off mechanism, insulating casing, and memory alloy spring drives drive mechanism and then control on-off mechanism and realizes the open-close control to the circuit along with the change of temperature, the utility model discloses a temperature control device can be applicable to various operational environment, can ally oneself with the deciliter, the long service life of a plurality of temperature limit control multiunit contacts of settlement of group.
Description
Technical Field
The utility model relates to a temperature control field, concretely relates to many temperature ladder controlling means based on shape memory alloy.
Background
In recent years, temperature control systems are applied more and more widely in various fields, and various industries have more and more forms of requirements on temperature control devices, but due to the development of automation and intellectualization at high speed in recent years, most temperature control modes are realized by adopting the cooperation of a sensor and a relay, and the sensor and the relay inevitably need a low-voltage control power supply, so that the temperature control system is too fussy to construct in certain environments, and the cost and the use threshold of temperature control are greatly improved.
At present, temperature control device all adopts the sensor to gather temperature data, controls the framework of relay by controller centralized processing back for the temperature control device structure is whole to be dispersed, and the temperature control process is compact enough, thereby probably leads to losing the temperature control ability and cause serious consequence because the trouble of middle certain link under certain operational environment, consequently need a use method not bad with ordinary switch urgently, can realize the temperature control device of on-the-spot control.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a temperature automatic control device based on shape memory alloy.
The purpose of the utility model is realized through the following technical scheme: a multi-temperature step control device based on shape memory alloy comprises a transmission mechanism, a memory alloy spring and an insulating shell; the transmission mechanism is divided into a first transmission mechanism and a second transmission mechanism, the first transmission mechanism is composed of a transmission rod, a reset spring, a force accumulation spring A, a force accumulation spring B, a limiting lug A and a limiting lug B, the second transmission mechanism is composed of a transmission rod, a force accumulation spring C, a force accumulation spring D and a limiting lug C, a through hole is formed in the middle of the insulating shell, the transmission rod penetrates through the through hole, extends into the shell and can freely move up and down in the through hole, the memory alloy spring is sleeved on the transmission rod and is in physical contact with the transmission rod, and the action of the transmission mechanism is controlled by the expansion of the memory alloy spring.
Preferably, the upper part of the transmission rod is provided with a rod cap with a protruding structure, one end of the memory alloy spring is connected with the rod cap of the transmission rod, and the other end of the memory alloy spring is fixedly connected with the outer wall of the top surface of the insulating shell.
Preferably, the power storage spring A, the power storage spring B, the power storage spring C and the power storage spring D are connected with the transmission rod through a rotating shaft structure; the reset spring is sleeved on the transmission rod, one end of the reset spring is fixedly connected with the inner wall of the top surface of the insulating shell, and the other end of the reset spring is connected with a limiting lug A fixedly arranged at the upper part of the rotating shaft structure of the first transmission mechanism; the force storage spring E and the force storage spring F are respectively arranged between the transmission mechanism rotating shaft structure and a limiting lug B and a limiting lug C fixedly arranged at the lower part of the transmission mechanism rotating shaft structure.
Preferably, a limiting baffle A and a limiting baffle B are fixedly arranged in the insulating shell, the limiting baffle can prevent the rotating shaft structure from continuously moving upwards and enable the force storage spring to continuously store energy, the limiting baffle A is arranged between the first transmission mechanism rotating shaft structure and the limiting lug A, and the limiting baffle B is arranged between the second transmission mechanism rotating shaft structure and the limiting lug B.
Preferably, the shape memory alloy-based multi-temperature step control device further comprises a switch mechanism, the switch mechanism is composed of a first temperature limit switch mechanism and a second temperature limit switch mechanism, the on-off state of the switch mechanism is controlled by corresponding transmission mechanisms respectively, the switch mechanism comprises a moving contact and a static contact, and the moving contact is a moving contact in a reed form.
Preferably, the static contacts comprise a normally closed static contact and a normally open static contact, and the moving contact controls the normally closed static contact and the normally open static contact.
Preferably, the reset spring can reset the transmission mechanism to the initial state after the memory alloy spring drives the transmission mechanism to act.
Preferably, the power spring can provide certain action stress for the transmission mechanism.
Preferably, the insulating shell is a support body of all mechanisms and provides a support function for all the mechanisms.
Preferably, the outer side surface of the insulating shell is provided with a combined structure, and a plurality of devices can be combined to realize different temperature step control.
The utility model has the advantages that: the utility model adopts the memory alloy material to control the position of the transmission rod, the deformation of different memory alloys at different temperatures is different, the purpose of setting the switch action temperature can be realized only by adjusting the connection position of the transmission rod and the memory alloy spring, and the effect of strong adaptability of the use environment is achieved; the utility model provides a temperature control device utilizes shape memory alloy's temperature deformation characteristic, can not need temperature sensor by automatic perception temperature, can utilize its automatic deformation to come the temperature circuit that opens and shuts again, need not establish control power supply and relay in addition, and application method and ordinary switch are poor, can realize the on-the-spot control, the utility model discloses can be single, can ally oneself with the deciliter of a plurality of temperature limit control multiunit contacts of settlement of group.
Drawings
FIG. 1 is a schematic view of a multi-temperature step control device of the present invention;
FIG. 2 is a structural diagram of the multi-temperature step control device according to the present invention in an initial state;
FIG. 3 is a structural diagram of a first variation state of the temperature control device according to the present invention;
FIG. 4 is a structural diagram of a second variation state of the temperature control device according to the present invention;
in the figure, a memory alloy spring-1, a transmission rod-2, a rod cap-21, a return spring-3, a reed- (41,42), a power storage spring A-51, a power storage spring B-52, a power storage spring C-53, a power storage spring D-54, a power storage spring E-55, a power storage spring F-56, a normally closed stationary contact- (61,63,65,67), a normally open stationary contact- (62,64,66,68), an insulating shell-7, a limit baffle A-81, a limit baffle B-82, a limit bump A-91, a limit bump B-92 and a limit bump C-93.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 2, the structure of the multi-temperature step control device of the present invention is schematically illustrated in the initial state, and includes a transmission mechanism, a memory alloy spring 1, and an insulating housing 7; the transmission mechanism is divided into a first transmission mechanism and a second transmission mechanism, the first transmission mechanism consists of a transmission rod 2, a reset spring 3, a force accumulation spring A51, a force accumulation spring B52, a limiting lug A91 and a limiting lug B92, the second transmission mechanism consists of a transmission rod 2, a force accumulation spring C53, a force accumulation spring D54 and a limiting lug C93, a through hole is formed in the middle of the insulating shell 7, the transmission rod 2 penetrates through the through hole to extend into the shell and can freely move up and down in the through hole, the memory alloy spring 1 is sleeved on the transmission rod and is in physical contact with the transmission rod, and the action of the transmission mechanism is controlled by the expansion and contraction of the memory alloy spring; the support body at least comprises an insulating shell 7, and the insulating shell provides a supporting function for all mechanisms; the on-off state of the switch mechanism is controlled by the transmission mechanism, the switch mechanism comprises a moving contact and a stationary contact, and the moving contact is a moving contact in a reed form.
Shape Memory Alloys (SMA) have the function of being able to remember their original shape, namely: shape memory alloys have a shape memory effect. The shape memory alloy body may be formed into a first shape, a target shape, or an initial state in an environment above the austenitizing temperature As. Next, the shape memory alloy body is plastically deformed to form a second shape (or plastic shape) in an environment at a temperature below the austenite temperature As. If the shape memory alloy is heated to a temperature above the austenitizing temperature As, the shape memory alloy will return to the pre-set shape.
The shape memory alloy may include one or more of a titanium-nickel based shape memory alloy, a copper-nickel based alloy, a copper-aluminum based alloy, a copper-zinc based alloy, and an iron based alloy. For example, the titanium-nickel based shape memory alloy may include one or more of a titanium-nickel alloy, a titanium-nickel-copper alloy, and a titanium-nickel-iron alloy. The preset length and the plastic length of the memory alloy spring can be preset according to the required temperature limit, the damping coefficient and the switch stress range.
The shape memory alloy spring can be connected with a transmission mechanism through a proper adjustable structure, a rod cap 21 with a protruding structure is arranged on the upper portion of the transmission rod, a through hole is formed in the middle of the insulating shell 7, the transmission rod penetrates through the through hole to extend into the shell and can freely move up and down in the through hole, one end of the memory alloy spring 1 is connected with the rod cap 21 of the transmission rod, the other end of the memory alloy spring is fixedly connected with the outer wall of the top face of the insulating shell, and the action temperature of the device can be changed by adjusting the protruding temperature of the rod cap. For example, if the rod cap compresses the initial length of the memory alloy spring to a shorter length, the temperature limit is lower; if the initial length of the memory alloy spring is compressed to a longer length, the temperature limit is higher.
As shown in fig. 2, the power storage spring a 51, the power storage spring B52, the power storage spring C53 and the power storage spring D54 are connected with the transmission rod 2 through a rotating shaft structure; the reset spring 3 is sleeved on the transmission rod, one end of the reset spring is fixedly connected with the inner wall of the top surface of the insulating shell, the other end of the reset spring is connected with a limiting lug A91 fixedly arranged on the upper part of the rotating shaft structure of the first transmission mechanism, the reset spring 3 can reset the transmission mechanism to an initial state after the memory alloy spring drives the transmission mechanism to act, and the reset force of the reset spring can be realized by adjusting the relative position of the limiting lug and the transmission rod; the limiting convex block B92 and the limiting convex block C93 are fixedly arranged on the transmission rod and move along with the displacement of the transmission rod, and are respectively arranged at the lower part of the transmission mechanism rotating shaft structure, the force storage spring E55 and the force storage spring F56 are respectively arranged between the transmission mechanism rotating shaft structure and the limiting convex block 92 and the limiting convex block 93 fixedly arranged at the lower part of the transmission mechanism rotating shaft structure, when the transmission rod 2 is axially displaced, the forces of the force storage spring A51, the force storage spring B52, the force storage spring C53 and the force storage spring D54 can be changed along with the axial displacement, and the action of the transmission mechanism is realized. The power storage spring A51, the power storage spring B52, the power storage spring C53 and the power storage spring D54 are connected with the spring leaves 41 and 42 through a rotating shaft structure, and the power storage spring can provide certain action stress for the transmission mechanism.
The multi-temperature step control device based on the shape memory alloy further comprises a switch mechanism, the switch mechanism is composed of a first temperature limit switch mechanism and a second temperature limit switch mechanism, the on-off state of the switch mechanism is controlled by corresponding transmission mechanisms respectively, the switch mechanism comprises a moving contact and a static contact, and the moving contact is particularly a moving contact in a reed form.
The static contacts comprise normally closed static contacts 61,63,65 and 67 and normally open static contacts 62,64,66 and 68, and the moving contact controls the normally closed static contacts and the normally open static contacts.
The insulation shell 7 is also fixedly provided with a limit baffle A81 and a limit baffle B82 inside, the limit baffle can prevent the rotating shaft structure from continuously moving upwards (excessive action) and enable the force storage spring to continuously store energy, the limit baffle is a baffle with a through hole in the middle, the transmission rod can penetrate through the limit baffle through the through hole, the limit baffle is not in direct contact with the transmission rod, the position of the limit baffle is fixed and cannot be changed due to the movement of the transmission rod, the limit baffle A81 is arranged between the rotating shaft structure of the first transmission mechanism and the limit lug A91, and the limit baffle B82 is arranged between the rotating shaft structure of the second transmission mechanism and the limit lug B92.
When the length of the memory alloy spring 1 changes along with the increase of the temperature, the transmission rod 2 is driven to move upwards, so that the axial directions and the forces of the power storage spring E55 and the power storage spring F56 are changed, the axial directions and the forces of the power storage spring A51, the power storage spring B52, the power storage spring C53 and the power storage spring D54 are driven to change, and when the axial directions of the power storage spring A51 and the power storage spring B52 are on the same straight line with the length direction of the reeds, the power storage forces of the power storage spring A51 and the power storage spring B52 reach the maximum.
When the temperature continues to rise, the memory alloy spring continues to extend, as shown in fig. 3, under the displacement action of the transmission rod 2, the power storage spring a 51, the power storage spring B52 and the power storage spring E55 release energy storage in the opposite direction, the reed 41 is separated from the stationary contacts 61 and 63 and is in contact with the stationary contacts 62 and 64, the normally closed contact is disconnected, the normally open contact is closed, and the action of the first temperature limit switch mechanism is realized.
When the temperature continues to rise on the basis of the first temperature limit, the memory alloy spring continues to extend, as shown in fig. 4, the transmission rod continues to displace upwards, the power storage spring E55 continues to store energy due to the limit baffle A81, and the first switch mechanism keeps an action state; and the energy storage springs C53, D54 and F56 continuously store energy until the force reaches a second temperature limit action critical value, if the energy storage is continued, the energy storage springs C53, D54 and F56 reversely release the stored energy, the spring leaves 42 are separated from the static contacts 65 and 67 and are contacted with the static contacts 66 and 68, the normally closed contacts are disconnected, the normally open contacts are closed, and the action of the second temperature limit switch mechanism is realized.
When the temperature drops, under the combined action of the memory alloy spring 1, the return spring 3, the power storage spring E55 and the power storage spring F56, the transmission rod is gradually restored to the initial position, in the process, the power storage spring a 51, the power storage spring B52, the power storage spring C53, the power storage spring D54, the power storage spring E55 and the power storage spring F56 repeatedly store power to the releasing action again, and further the spring pieces 42 and 41 are respectively restored to the initial positions, as shown in fig. 2, the return of the transmission mechanism and the switch mechanism is realized, and the device state is sequentially changed from fig. 4 to fig. 3 and fig. 2.
The above process is an action process of a single temperature self-control device, and if a plurality of single devices are used in a combined manner through a combined structure on the shell 7, multi-temperature step control can be realized, and three-order temperature step control can be realized by combining three single devices as shown in fig. 1. The device of this application can be when the temperature reachs that the temperature of establishing is spacing control circuit cut-off or closed, can be under the environment that does not need the external control power, the circuit of effectual switching within range current value, generally speaking, the utility model discloses a temperature automatic control device has that adjustable temperature is spacing, simple structure, need not the control power, have great switching ability, can ally oneself with the group and use, possess advantages such as many temperature ladder control, long service life.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. A multi-temperature ladder control device based on shape memory alloy is characterized in that: comprises a transmission mechanism, a memory alloy spring (1) and an insulating shell (7); the transmission mechanism is divided into a first transmission mechanism and a second transmission mechanism, the first transmission mechanism is composed of a transmission rod (2), a reset spring (3), a force storage spring A (51), a force storage spring B (52), a limiting lug A (91) and a limiting lug B (92), the second transmission mechanism is composed of a transmission rod (2), a force storage spring C (53), a force storage spring D (54) and a limiting lug C (93), a through hole is formed in the middle of an insulating shell (7), the transmission rod (2) penetrates through the through hole to extend into the shell and can freely move up and down in the through hole, a memory alloy spring (1) is sleeved on the transmission rod and is in physical contact with the transmission rod, and the action of the transmission mechanism is controlled by the expansion of the memory alloy spring.
2. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the upper part of the transmission rod is provided with a rod cap (21) with a protruding structure, one end of the memory alloy spring (1) is connected with the rod cap (21) of the transmission rod, and the other end of the memory alloy spring is fixedly connected with the outer wall of the top surface of the insulating shell (7).
3. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the power storage spring A (51), the power storage spring B (52), the power storage spring C (53) and the power storage spring D (54) are connected with the transmission rod (2) through a rotating shaft structure; the reset spring (3) is sleeved on the transmission rod, one end of the reset spring is fixedly connected with the inner wall of the top surface of the insulating shell, and the other end of the reset spring is connected with a limiting lug A (91) fixedly arranged at the upper part of the rotating shaft structure of the first transmission mechanism; and the power storage spring E (55) and the power storage spring F (56) are respectively arranged between the transmission mechanism rotating shaft structure and a limiting lug B (92) and a limiting lug C (93) fixedly arranged at the lower part of the transmission mechanism rotating shaft structure.
4. The shape memory alloy based multiple temperature step control device of claim 1, wherein: a limiting baffle A (81) and a limiting baffle B (82) are fixedly arranged in the insulating shell (7), the limiting baffle can prevent the rotating shaft structure from continuously moving upwards and enable the force storage spring to continuously store energy, the limiting baffle A (81) is arranged between the first transmission mechanism rotating shaft structure and the limiting convex block A (91), and the limiting baffle B (82) is arranged between the second transmission mechanism rotating shaft structure and the limiting convex block B (92).
5. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the multi-temperature step control device based on the shape memory alloy further comprises a switch mechanism, the switch mechanism is composed of a first temperature limit switch mechanism and a second temperature limit switch mechanism, the on-off state of the switch mechanism is controlled by corresponding transmission mechanisms respectively, the switch mechanism comprises a moving contact and a static contact, and the moving contact is particularly a moving contact in a reed form.
6. The shape memory alloy based multiple temperature step control device of claim 5, wherein: the static contacts comprise normally closed static contacts and normally open static contacts, and the moving contact controls the normally closed static contacts and the normally open static contacts.
7. The shape memory alloy based multiple temperature step control device of claim 1 or 3, wherein: the reset spring (3) can reset the transmission mechanism to an initial state after the memory alloy spring drives the transmission mechanism to act.
8. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the power storage spring can provide certain action stress for the transmission mechanism.
9. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the insulating shell (7) is a supporting body of all mechanisms and provides a supporting function for all the mechanisms.
10. The shape memory alloy based multiple temperature step control device of claim 1, wherein: the outer side surface of the insulating shell (7) is provided with a combined structure, and a plurality of devices can be combined to realize different temperature step control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120704463.1U CN214588608U (en) | 2021-04-07 | 2021-04-07 | Multi-temperature step control device based on shape memory alloy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120704463.1U CN214588608U (en) | 2021-04-07 | 2021-04-07 | Multi-temperature step control device based on shape memory alloy |
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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 |
| CN116259489A (en) * | 2023-05-11 | 2023-06-13 | 成都理工大学 | Multi-bit Cheng Jieti trigger displacement switch |
-
2021
- 2021-04-07 CN CN202120704463.1U patent/CN214588608U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN116259489A (en) * | 2023-05-11 | 2023-06-13 | 成都理工大学 | Multi-bit Cheng Jieti trigger displacement switch |
| CN116259489B (en) * | 2023-05-11 | 2023-10-17 | 成都理工大学 | Multi-bit Cheng Jieti trigger displacement switch |
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Granted publication date: 20211102 |