CN215110883U - Variable throttling device using memory alloy - Google Patents
Variable throttling device using memory alloy Download PDFInfo
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- CN215110883U CN215110883U CN202120693559.2U CN202120693559U CN215110883U CN 215110883 U CN215110883 U CN 215110883U CN 202120693559 U CN202120693559 U CN 202120693559U CN 215110883 U CN215110883 U CN 215110883U
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Abstract
The utility model discloses a variable throttling device using memory alloy, which comprises a pipe body and a valve component, wherein a medium channel is arranged in the pipe body; the valve assembly is arranged in the medium passage and partitions the medium passage into an inlet passage and an outlet passage; the valve component comprises a valve body, a sliding block, a shape memory alloy body and a control device; the valve body is connected to the inner wall of the medium channel, and a main throttling channel and an auxiliary throttling channel are arranged in the valve body; the sliding block is connected between the valve body and the inner wall of the medium channel in a sliding manner and is connected with the shape memory alloy body; the control device is suitable for heating and cooling the shape memory alloy body to enable the shape memory alloy body to deform and drive the sliding block to move, and further enable the sliding block to close or open or partially open the auxiliary throttling channel in the moving process. The utility model discloses simple structure can the efficient adjust the flow of refrigerant, strengthens the ability of adjusting the flow.
Description
Technical Field
The utility model relates to a variable throttling device using memory alloy.
Background
At present, in an automobile air conditioner, a household air conditioner and a heat pump system, a throttling short pipe is required to be used for throttling and depressurizing a high-temperature high-pressure liquid refrigerant flowing out of a condenser, so that a low-temperature low-pressure two-phase refrigerant fluid is obtained; the throttling short pipe is also used for adjusting the flow of the refrigerant entering the evaporator, and provides the most suitable refrigeration effect for the system. The throttling short pipe has good interchangeability and self-balancing capability, and is widely applied due to the advantages of low price, simple manufacture and high reliability. However, the throttling short pipe has poor adjusting performance on the refrigerant flow, and particularly has poor adjusting capacity on the refrigerant flow under variable working conditions, so that the actual use requirement cannot be met.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art's defect, provide an use memory alloy's variable throttling arrangement, its simple structure can the efficient adjust the flow of refrigerant, the reinforcing ability of adjusting the flow.
In order to solve the technical problem, the technical scheme of the utility model is that: a variable throttling device using memory alloy comprises a pipe body and a valve component; wherein the content of the first and second substances,
a medium channel for medium to flow through is arranged in the pipe body;
the valve assembly is arranged in the medium passage and partitions the medium passage into an inlet passage and an outlet passage;
wherein, the valve component comprises a valve body, a slide block, a shape memory alloy body and a control device;
the valve body is connected to the inner wall of the medium channel, and a main throttling channel suitable for communicating the inlet channel and the outlet channel and an auxiliary throttling channel suitable for communicating the inlet channel and the outlet channel are arranged in the valve body;
the sliding block is connected between the valve body and the inner wall of the medium channel in a sliding manner and is connected with the shape memory alloy body;
the control device is connected with the shape memory alloy body and is suitable for heating and cooling the shape memory alloy body so as to deform the shape memory alloy body and drive the sliding block to move, and further the sliding block is enabled to close or open or partially open the auxiliary throttling channel in the moving process.
Further provides a specific arrangement structure of the valve body and the sliding block, one part of the valve body is attached to the inner wall of the medium channel, and a sliding fit channel is formed between the other part of the valve body and the inner wall of the medium channel;
the shape of the sliding block is matched with the shape of the cross section of the sliding distribution channel, and the sliding block is in sliding distribution in the sliding distribution channel and is matched with the valve body to separate the medium channel.
Further, a specific structure of the auxiliary throttle passage is provided, one end of the auxiliary throttle passage is communicated with the outlet passage, and the other end of the auxiliary throttle passage is communicated with the sliding distribution passage and communicated with the inlet passage (3) through the sliding distribution passage.
Further, the control device is connected to the valve body, one end of the shape memory alloy body is connected to the slider, and the other end of the shape memory alloy body is connected to the control device.
Further provided is a specific aspect of the control device, which includes an adjustable power supply electrically connected to the shape memory alloy body and adapted to apply a voltage to the shape memory alloy body;
the adjustable power supply is suitable for changing the voltage applied to the shape memory alloy body, and further changing the temperature of the shape memory alloy body so that the shape memory alloy body deforms and drives the sliding block to move.
Further provided is a concrete structure of the shape memory alloy body, wherein the shape memory alloy body is a spring made of a shape memory alloy material.
Further in order to filter out impurities, an inlet filter screen connected to the pipe body is arranged in the inlet channel (3), and/or an outlet filter screen connected to the pipe body is arranged in the outlet channel.
Further to acquire the temperature of the shape memory alloy body, the variable throttling device applying the memory alloy further comprises a temperature sensor which is connected with the shape memory alloy body and is suitable for acquiring a temperature signal of the shape memory alloy body.
Further, the variable throttling device applying the memory alloy further comprises a controller; wherein the content of the first and second substances,
the input end of the controller is connected with the temperature sensor and is suitable for receiving a temperature signal sent by the temperature sensor;
the controller is in control connection with the adjustable power supply and is suitable for controlling the output voltage of the adjustable power supply according to the received temperature signal.
Further, the inlet end of the pipe body is connected with the outlet of the condenser, the outlet end of the pipe body is connected with the inlet of the evaporator, and the pipe body is suitable for guiding the refrigerant.
After the technical scheme is adopted, one part of the valve body is attached to the inner wall of the medium channel, and a sliding channel is formed between the other part of the valve body and the inner wall of the medium channel; the sliding block is arranged in the sliding distribution channel in a sliding manner, and is matched with the valve body to partition the medium channel so as to divide the medium channel into an inlet channel and an outlet channel; the inlet end of the auxiliary throttling channel is communicated with the sliding distribution channel and is communicated with the inlet channel through the sliding distribution channel. The voltage applied to the shape memory alloy body is changed through the adjustable power supply, so that the current in the shape memory alloy body is changed, the generated quantity of the current is changed, the temperature of the shape memory alloy body is changed, and the shape memory alloy body is deformed and drives the sliding block to move. The sliding block is suitable for blocking or opening or partially opening the auxiliary throttling channel in the moving process so as to adjust the opening degree of the auxiliary throttling channel, further adjust the flow of the medium flowing from the inlet channel to the outlet channel, realize accurate adjustment of the flow and enhance the capacity of adjusting the flow.
Drawings
Fig. 1 is a schematic structural view of a variable throttle device using a memory alloy according to the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1, a variable throttle device using a memory alloy includes a pipe body 1 and a valve assembly; wherein the content of the first and second substances,
a medium channel 2 for medium to flow through is arranged in the pipe body 1;
the valve assembly is arranged in the medium passage 2 and divides the medium passage 2 into an inlet passage 3 and an outlet passage 4;
wherein, the valve component comprises a valve body 5, a slide block 6, a shape memory alloy body 7 and a control device 8;
the valve body 5 is connected to the inner wall of the medium passage 2, and a main throttle passage 9 adapted to communicate the inlet passage 3 and the outlet passage 4 and an auxiliary throttle passage 10 adapted to communicate the inlet passage 3 and the outlet passage 4 are provided in the valve body 5;
the slide block 6 is connected between the valve body 5 and the inner wall of the medium channel 2 in a sliding way and is connected with the shape memory alloy body 7;
the control device 8 is connected with the shape memory alloy body 7 and is suitable for heating and cooling the shape memory alloy body 7 so as to deform the shape memory alloy body 7 and drive the sliding block 6 to move, further the sliding block 6 blocks or opens or partially opens the auxiliary throttling channel 10 in the moving process, further the opening degree of the auxiliary throttling channel 10 is adjusted, the flow rate of a medium flowing from the inlet channel 3 to the outlet channel 4 is adjusted, accurate adjustment of the flow rate is achieved, and the capacity of adjusting the flow rate is enhanced.
In this embodiment, when the temperature of the shape memory alloy body 7 increases, the shape memory alloy body 7 expands and lengthens, and further drives the sliding block 6 to slide towards the inlet of the auxiliary throttling channel 10 and gradually block the inlet of the auxiliary throttling channel 10; when the temperature of the shape memory alloy body 7 is reduced, the shape memory alloy body 7 contracts and shortens, and the sliding block 6 is driven to slide to gradually open the inlet of the auxiliary throttling channel 10. Specifically, the opening degree of the auxiliary throttling channel 10 can be controlled by controlling the temperature of the shape memory alloy body 7, so that the flow can be regulated, the regulation capacity of the flow is improved, and the device is low in cost, high in regulation precision and high in reliability.
More specifically, the shape memory alloy is a special functional material integrating sensing and driving, and has a very peculiar shape memory effect and super-elasticity in addition to the strength, plasticity, ductility and conductivity of metal, namely, after the shape memory alloy at low temperature deforms under the action of external force, if the shape memory alloy is heated to a temperature exceeding the phase transformation point of the shape memory alloy, the shape memory alloy can recover to the shape of the state before deformation; and under the action of external force, it can produce strain which is far greater than its elastic limit strain quantity, and after the strain is unloaded, it can be automatically restored to original state. Aiming at the characteristics of the shape memory alloy material, the deformation of the shape memory alloy material can be changed by controlling the temperature of the shape memory alloy material, so that the position of the slide block 6 is accurately controlled, and the opening degree of the auxiliary throttling channel 10 is accurately controlled. In this embodiment, the tube body 1 may be a copper tube.
As shown in fig. 1, a part of the valve body 5 is attached to the inner wall of the medium passage 2, and a slide fit passage 11 is formed between the other part of the valve body 5 and the inner wall of the medium passage 2;
the shape of the sliding block 6 is matched with the cross section shape of the sliding distribution channel 11, and the sliding block 6 is in sliding distribution in the sliding distribution channel 11 and is matched with the valve body 5 to separate the medium channel 2.
As shown in fig. 1, one end of the auxiliary throttling channel 10 is communicated with the outlet channel 4, and the other end of the auxiliary throttling channel 10 is communicated with the slide-fit channel 11 and communicated with the inlet channel 3 through the slide-fit channel 11, so that the slide block 6 can close or open or partially open the auxiliary throttling channel 10 during the moving process; in the present embodiment, the auxiliary throttle passage 10 has an L-shaped structure.
As shown in fig. 1, the control device 8 may be connected to the valve body 5, one end of the shape memory alloy body 7 may be connected to the slider 6, and the other end of the shape memory alloy body 7 may be connected to the control device 8.
As shown in fig. 1, the control device 8 may comprise an adjustable power supply electrically connected to the shape memory alloy body 7 and adapted to apply a voltage to the shape memory alloy body 7;
the adjustable power supply is suitable for changing the voltage applied to the shape memory alloy body 7, so as to change the temperature of the shape memory alloy body 7, so that the shape memory alloy body 7 is deformed to drive the sliding block 6 to move; specifically, the adjustable power supply can adjust the magnitude of the output voltage, and the specific structure of the adjustable power supply is the prior art well known to those skilled in the art, and is not described in detail in this embodiment. More specifically, when the adjustable power supply increases the voltage applied to the shape memory alloy body 7, the current in the shape memory alloy body 7 increases, and further, the heat generated by the current increases, and the temperature of the shape memory alloy body 7 increases to expand and lengthen the shape memory alloy body 7 and drive the slider 6 to move leftward; when the adjustable power supply reduces the voltage applied to the shape memory alloy body 7, the current in the shape memory alloy body 7 becomes smaller, resulting in a reduction in the amount of heat generated by the current, the rate of heat generation of the current being less than the rate of heat dissipation of the shape memory alloy body 7, and the temperature of the shape memory alloy body 7 is reduced to cause the shape memory alloy body 7 to contract and shorten and drive the slider 6 to move to the right.
More specifically, one end of the shape memory alloy body 7 is connected to the slider 6, and the other end of the shape memory alloy body 7 may be directly connected to the valve body 5 or the pipe body 1.
In this embodiment, the shape memory alloy body 7 may be a spring made of a shape memory alloy material.
As shown in fig. 1, an inlet screen 12 connected to the pipe body 1 is disposed in the inlet passage 3, and an outlet screen 13 connected to the pipe body 1 is disposed in the outlet passage 4.
In this embodiment, the variable throttling device using memory alloy may further include a temperature sensor connected to the shape memory alloy body 7 and adapted to collect a temperature signal of the shape memory alloy body 7; specifically, the deformation amount of the shape memory alloy body 7 can be obtained by feedback of the temperature signal, and further, the position of the slide 6 and the opening degree of the auxiliary throttle passage 10 can be obtained.
In this embodiment, the variable throttling device using the memory alloy may further include a controller; wherein the content of the first and second substances,
the input end of the controller is connected with the temperature sensor and is suitable for receiving a temperature signal sent by the temperature sensor;
the controller is in control connection with the adjustable power supply and is suitable for controlling the output voltage of the adjustable power supply according to the received temperature signal; in this embodiment, the controller controls the adjustable power supply to decrease the output voltage when the received temperature signal is higher than the set value, and controls the adjustable power supply to increase the output voltage when the received temperature signal is lower than the set value.
As shown in fig. 1, the inlet end of the tube 1 is connected with the outlet of the condenser, the outlet end of the tube 1 is connected with the inlet of the evaporator, and the tube 1 is suitable for guiding the refrigerant; specifically, the refrigerant at the outlet of the condenser flows into the inlet passage 3 from the inlet end of the tube body 1, then passes through the primary throttle passage 9 and the secondary throttle passage 10 to achieve throttling depressurization, flows into the outlet passage 4, and then flows into the evaporator through the outlet end of the tube body 1.
The working principle of the utility model is as follows:
one part of the valve body 5 is attached to the inner wall of the medium channel 2, and a slide fit channel 11 is formed between the other part of the valve body 5 and the inner wall of the medium channel 2; the sliding block 6 is arranged in the sliding distribution channel 11 in a sliding way, is matched with the valve body 5 and then partitions the medium channel 2, so that the medium channel 2 is divided into an inlet channel 3 and an outlet channel 4; the inlet end of the auxiliary throttling channel 10 is communicated with the slide-fitting channel 11 and communicated with the inlet channel 3 through the slide-fitting channel 11. The voltage applied to the shape memory alloy body 7 is changed through the adjustable power supply, so that the current in the shape memory alloy body 7 is changed, the generated amount of the current is changed, the temperature of the shape memory alloy body 7 is changed, and the shape memory alloy body 7 is deformed and drives the sliding block 6 to move. The sliding block 6 is suitable for blocking or opening or partially opening the auxiliary throttling channel 10 in the moving process so as to adjust the opening degree of the auxiliary throttling channel 10, further adjust the flow rate of the medium flowing from the inlet channel 3 to the outlet channel 4, realize accurate adjustment of the flow rate and enhance the capacity of adjusting the flow rate.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A variable throttling device using memory alloy is characterized by comprising a pipe body (1) and a valve component; wherein the content of the first and second substances,
a medium channel (2) through which a medium flows is arranged in the pipe body (1);
the valve assembly is arranged in the medium passage (2) and divides the medium passage (2) into an inlet passage (3) and an outlet passage (4);
wherein the valve component comprises a valve body (5), a slide block (6), a shape memory alloy body (7) and a control device (8);
the valve body (5) is connected to the inner wall of the medium passage (2), and a main throttling passage (9) suitable for communicating the inlet passage (3) and the outlet passage (4) and an auxiliary throttling passage (10) suitable for communicating the inlet passage (3) and the outlet passage (4) are arranged in the valve body (5);
the sliding block (6) is connected between the valve body (5) and the inner wall of the medium channel (2) in a sliding manner and is connected with the shape memory alloy body (7);
the control device (8) is connected with the shape memory alloy body (7) and is suitable for heating and cooling the shape memory alloy body (7) so as to deform the shape memory alloy body (7) and drive the sliding block (6) to move, and further the sliding block (6) is enabled to close or open or partially open the auxiliary throttling channel (10) in the moving process.
2. The variable throttle device using a memory alloy according to claim 1,
one part of the valve body (5) is attached to the inner wall of the medium channel (2), and a sliding channel (11) is formed between the other part of the valve body (5) and the inner wall of the medium channel (2);
the shape of the sliding block (6) is matched with the cross section shape of the sliding distribution channel (11), and the sliding block (6) is in sliding distribution in the sliding distribution channel (11) and is matched with the valve body (5) to separate the medium channel (2).
3. The variable throttling device using the memory alloy according to claim 2, wherein one end of the auxiliary throttling channel (10) is communicated with the outlet channel (4), and the other end of the auxiliary throttling channel (10) is communicated with the sliding distribution channel (11) and communicated with the inlet channel (3) through the sliding distribution channel (11).
4. Variable throttle device using memory alloy according to claim 1, characterized in that the control device (8) is connected to the valve body (5), one end of the shape memory alloy body (7) is connected to the slide (6), and the other end of the shape memory alloy body (7) is connected to the control device (8).
5. The variable throttle device using a memory alloy according to claim 1,
the control device (8) comprises an adjustable power supply which is electrically connected with the shape memory alloy body (7) and is suitable for applying voltage to the shape memory alloy body (7);
the adjustable power supply is suitable for changing the voltage applied to the shape memory alloy body (7) so as to change the temperature of the shape memory alloy body (7) to enable the shape memory alloy body (7) to deform and further drive the sliding block (6) to move.
6. Variable restriction device according to claim 1, wherein the shape memory alloy body (7) is a spring made of a shape memory alloy material.
7. Variable throttling device using memory alloy according to claim 1, characterized in that an inlet screen (12) connected to the pipe body (1) is provided in the inlet channel (3) and/or an outlet screen (13) connected to the pipe body (1) is provided in the outlet channel (4).
8. Variable restriction device according to claim 1, further comprising a temperature sensor associated with the shape memory alloy body (7) and adapted to acquire a temperature signal of the shape memory alloy body (7).
9. The variable throttle device using a memory alloy according to claim 8, further comprising a controller; wherein the content of the first and second substances,
the input end of the controller is connected with the temperature sensor and is suitable for receiving a temperature signal sent by the temperature sensor;
the controller is in control connection with the adjustable power supply and is suitable for controlling the output voltage of the adjustable power supply according to the received temperature signal.
10. Variable throttle device using memory alloy according to claim 1, characterized in that the inlet end of the tube (1) is connected to the outlet of the condenser and the outlet end of the tube (1) is connected to the inlet of the evaporator, the tube (1) being adapted to conduct the refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120693559.2U CN215110883U (en) | 2021-04-06 | 2021-04-06 | Variable throttling device using memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120693559.2U CN215110883U (en) | 2021-04-06 | 2021-04-06 | Variable throttling device using memory alloy |
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| Publication Number | Publication Date |
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| CN215110883U true CN215110883U (en) | 2021-12-10 |
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| CN202120693559.2U Active CN215110883U (en) | 2021-04-06 | 2021-04-06 | Variable throttling device using memory alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289724A (en) * | 2022-08-05 | 2022-11-04 | 小米科技(武汉)有限公司 | Throttling device, control method, control device, temperature adjusting equipment and medium |
-
2021
- 2021-04-06 CN CN202120693559.2U patent/CN215110883U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289724A (en) * | 2022-08-05 | 2022-11-04 | 小米科技(武汉)有限公司 | Throttling device, control method, control device, temperature adjusting equipment and medium |
| CN115289724B (en) * | 2022-08-05 | 2024-05-24 | 小米科技(武汉)有限公司 | Throttle device, control method, control device, temperature control apparatus, and medium |
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