Adjustable ventilation floor driven by high expansion alloy

The adjustable ventilation floor driven by a high-expansion alloy employs purely mechanical control. It utilizes the thermal expansion effect of the high-expansion alloy strips to drive multi-stage telescopic air rods, thereby achieving automatic adjustment of the ventilation opening. This solves the problem of the complexity of motor-driven control systems in existing technologies, reduces costs and maintenance difficulty, and improves the system's adaptability and accuracy.

CN119531564BActive Publication Date: 2026-04-28GUIZHOU POWER GRID CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUIZHOU POWER GRID CO LTD
Filing Date
2024-10-17
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing adjustable ventilated floors require complex motor drive control systems and additional temperature sensors, resulting in high costs, complex wiring, and difficult maintenance.

Method used

Using a high-expansion alloy strip as the temperature sensing component, the opening of the ventilation port is adjusted through mechanical linkage. The thermal expansion effect of the high-expansion alloy strip drives a multi-stage telescopic air rod to achieve the position adjustment of the moving plate and the fixed plate, simplifying it to pure mechanical control.

Benefits of technology

No power or cable connection is required, reducing energy consumption and wiring costs, simplifying the structure, improving the system's scalability and adaptability, and ensuring smooth and accurate ventilation volume regulation.

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Abstract

The present application relates to the technical field of ventilation floor, especially to an adjustable ventilation floor driven by high expansion alloy, comprising a floor assembly and a temperature sensing assembly, the floor assembly is composed of a support, a fixed plate and a movable plate, the movable plate can slide below the fixed plate, and the movable plate is pushed to slide by a pneumatic component to adjust the dislocation area of the through hole. The temperature sensing assembly comprises a shell and a high expansion alloy strip, the alloy strip is in the shape of Archimedes spiral, the outer side is provided with guide rollers arranged in the shape of vortex, the expansion direction of the alloy strip is limited, and the tail end is connected with a multi-stage telescopic air rod I connected with the pneumatic component through a hose. No power or cable connection is needed, energy consumption and wiring cost are reduced. The linkage between mechanical components simplifies the structure and reduces the maintenance complexity. The air ventilation speed is controlled through an adjustable switching valve, and the ventilation volume adjustment is smooth.
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Description

Technical Field

[0001] This invention relates to the field of ventilated floor technology, and more particularly to an adjustable ventilated floor driven by a high-expansion alloy. Background Technology

[0002] Adjustable ventilated floors are devices specifically designed for environments such as data centers where precise temperature control is required. These floors automatically adjust the opening of the vents based on the room temperature, thereby controlling the volume of cool air supplied to maintain a suitable temperature range for the long-term stable operation of servers and other equipment.

[0003] The most common ventilated floor structure currently uses the relative movement between a movable wind deflector and a fixed wind deflector to change the ventilation area, thereby adjusting the airflow. Specifically, a rack is installed on the movable wind deflector, and a motor drives a gear to rotate, which in turn drives the rack to achieve linear movement of the wind deflector.

[0004] However, this adjustment method has the following problems: High cost: It requires a relatively complex motor drive control system. Complex automatic control: In addition to the ventilated floor itself, temperature sensors need to be installed in the computer room, and a controller is needed to achieve linkage control between the temperature sensors and the ventilated floor. Large amount of cabling work: Each ventilated floor requires power and communication cables, which greatly increases the amount of cabling work in the computer room. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned adjustable ventilated floors driven by high-expansion alloys, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an adjustable ventilation floor driven by a high-expansion alloy, the purpose of which is that the adjustable ventilation floor controls the temperature in the computer room by automatically adjusting the opening of the ventilation vents. However, traditional single-motor drive control systems are costly, have complex wiring, and require additional temperature sensors and controllers.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable ventilated floor driven by a high-expansion alloy, comprising a floor assembly, which includes a bracket and a fixed plate mounted on the bracket, a movable plate slidably disposed along the lower surface of the fixed plate, and a pneumatic component disposed between the movable plate and the fixed plate, the pneumatic component pushing the movable plate to slide, thereby adjusting the misalignment area of ​​the through holes on the movable plate and the fixed plate;

[0008] The temperature sensing component includes a housing suspended on a chassis. Inside the housing is a high-expansion alloy strip, which is shaped like an Archimedean spiral. Several guide rollers arranged in a spiral pattern are provided on the outside of the high-expansion alloy strip to limit the extension and retraction direction of the high-expansion alloy strip. At the end of the high-expansion alloy strip is a multi-stage telescopic air rod, which is connected to the pneumatic component via a hose.

[0009] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, the lower surface of the fixed plate is provided with a groove, the upper surface of the movable plate is provided with a sliding foot, the sliding foot slides in the groove, and the pneumatic component is located on the side of the groove.

[0010] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, the pneumatic component includes a multi-stage telescopic air rod II and a switching valve, wherein the free end of the multi-stage telescopic air rod II is fixed to the side of the sliding foot, and the fixed end of the multi-stage telescopic air rod II is connected to the switching valve.

[0011] As a preferred embodiment of the adjustable ventilation floor driven by the high expansion alloy described in this invention, the switching valve includes a cavity connected to the two fixed ends of the multi-stage telescopic air rod, two symmetrical branch pipes are provided on the outside of the cavity, the end of each branch pipe is provided with an outlet on the upper surface of the fixed plate, each outlet corresponds to a cap, and any outlet is connected to the hose.

[0012] As a preferred embodiment of the adjustable ventilation floor driven by a high-expansion alloy according to the present invention, a valve body is provided in the cavity, and a connecting channel is provided on the valve body. The valve body is rotatable to adjust the direction of the connecting channel and connect the corresponding branch pipe to the multi-stage telescopic air rod.

[0013] As a preferred embodiment of the adjustable ventilation floor driven by a high-expansion alloy according to the present invention, the connecting channel includes a cavity disposed in the valve body, the outer wall of the valve body has two strip grooves, one of which corresponds to the fixed end of the second multi-stage telescopic rod, and the other of which is connected to any of the branch pipes. A self-locking component is disposed inside the valve body, and the self-locking component is located above the cavity.

[0014] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, the branch pipeline includes a channel body and a piston sliding along the channel body, wherein the volume of the channel body is greater than the volume of the multi-stage telescopic air rod one and the multi-stage telescopic air rod two.

[0015] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, two pneumatic components are provided and symmetrically arranged on both sides of the fixed plate.

[0016] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, the housing is circular, and one side is provided as an opening, with this side facing the ventilation hole of the chassis or the heat source.

[0017] As a preferred embodiment of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention, the high-expansion alloy strip is Cu60Zn40 alloy, FeNi22Cr3 alloy, FeNi20Mn6 alloy, FeNi13Mn7 alloy and Mn72Cr18Ni10 alloy.

[0018] The beneficial effects of this invention are as follows: A high-expansion alloy strip is placed near the heat-generating part of the machine room for temperature sensing. When the temperature rises, the alloy strip will elongate. However, due to the restriction of multiple guide rollers, it can only extend and retract at its end, thereby pushing the first multi-stage telescopic air rod to extend and retract. The first multi-stage telescopic air rod is connected to the branch channel of the pneumatic component through a hose. Therefore, the change of gas inside it will push the piston in the branch channel to move. The branch channel is connected to the second multi-stage telescopic air rod through a switching valve, thereby pushing the second multi-stage telescopic air rod to extend and retract. Finally, by pushing the sliding foot on the moving plate to slide in the groove of the fixed plate, the position between the moving plate and the fixed plate is adjusted, thereby realizing the automatic control of the ventilation volume.

[0019] Requiring no electrical or cable connections reduces energy consumption and wiring costs. The interlocking mechanical components simplify the overall structure and lower maintenance complexity. An adjustable switching valve controls the ventilation speed between the branch pipes and the multi-stage telescopic air rods, adaptively adjusting the moving plate's speed and ensuring smooth ventilation adjustment. An adjustable cavity within the switching valve allows for control over cavity variations. When the multi-stage telescopic air rods change significantly, excess gas is contained within the cavity, while smaller changes in the second stage ensure more precise and stable spacing adjustment between the moving and fixed plates. This enhances adaptability to different temperatures and environments, increasing the system's scalability and adaptability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention.

[0022] Figure 2 This is a top view schematic diagram of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention.

[0023] Figure 3 This is a side view of the adjustable ventilated floor driven by a high-expansion alloy according to the present invention.

[0024] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the BB direction.

[0025] Figure 5 for Figure 4 Enlarged schematic diagram of the C-structure.

[0026] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the D-structure.

[0028] Figure 8 This is a schematic diagram of the installation state of the switching valve in this invention.

[0029] In the picture:

[0030] 100. Floor assembly; 101. Bracket; 102. Fixing plate; 102a. Slide groove; 103. Moving plate; 103a. Sliding foot; 104. Pneumatic component; 104a. Multi-stage telescopic air rod II; 104b. Switching valve; 104b-1. Cavity; 104b-2. Valve body; 104b-3. Connecting channel; 104b-3a. Receptacle; 104b-3b. Strip groove; 104b-4. Self-locking component; 104c. Branch pipe; 104c-1. Channel body; 104c-2. Piston;

[0031] 200. Temperature sensing component; 201. Housing; 202. High expansion alloy strip; 203. Guide roller; 204. Multi-stage telescopic air rod; 205. Hose. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0035] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0036] Example 1

[0037] Reference Figures 1-4 This first embodiment of the invention provides an adjustable ventilated floor driven by a high-expansion alloy, comprising a floor assembly 100, which includes a support 101 and a fixed plate 102 mounted on the support 101. A movable plate 103 is slidably disposed along the lower surface of the fixed plate 102. A pneumatic component 104 is disposed between the movable plate 103 and the fixed plate 102, which pushes the movable plate 103 to slide, thereby adjusting the misalignment area of ​​the through holes on the movable plate 103 and the fixed plate 102; a temperature sensing component. 200 includes a housing 201 suspended on a chassis. Inside the housing 201 is a high-expansion alloy strip 202, which is shaped like an Archimedean spiral. Several guide rollers 203 arranged in a spiral pattern are provided on the outside of the high-expansion alloy strip 202 to limit the extension and retraction direction of the high-expansion alloy strip 202. At the end of the high-expansion alloy strip 202 is a multi-stage telescopic air rod 204, which is connected to the pneumatic component 104 through a hose 205.

[0038] To achieve automatic adjustment of the ventilated floor without additional power or cable connections, a purely mechanical control scheme based on high-expansion alloy strip 202 was designed. Specifically, a high-expansion alloy strip 202 is placed near the heat-generating area of ​​the machine room for temperature sensing. When the temperature rises, the high-expansion alloy strip 202 will extend. Due to the limitation of multiple guide rollers 203 around it, the high-expansion alloy strip 202 can only extend and retract at its end, thereby pushing the multi-stage telescopic air rod 1 204 to extend and retract. The multi-stage telescopic air rod 1 204 is connected to the branch pipe 104c of the pneumatic component 104 through a hose 205. Therefore, the change of internal gas will push the piston 104c-2 inside the branch pipe 104c to move. The branch pipe 104c is connected to the multi-stage telescopic air rod 2 104a through a switching valve 104b, thereby pushing the multi-stage telescopic air rod 2 104a to extend and retract. Finally, by pushing the sliding foot 103a of the moving plate 103 to slide in the sliding groove 102a of the fixed plate 102, the position between the moving plate 103 and the fixed plate 102 is adjusted, thereby adjusting the misalignment area of ​​the through holes of the two, thereby realizing the automatic control of the ventilation volume.

[0039] This purely mechanical control scheme has the following advantages: Energy saving and environmental protection: Since no electricity or cable connection is required, energy consumption and wiring costs are reduced. Simplified structure: The linkage between mechanical components simplifies the overall structure and reduces maintenance complexity. Adaptive adjustment: An adjustable switching valve 104b is used to adaptively adjust the moving speed of the moving plate 103, ensuring smooth ventilation volume adjustment.

[0040] Furthermore, an adjustable cavity 104b-3a is provided in the switching valve 104b: the valve body 104b-2 has a cavity 104b-3a inside, which can control the change of the cavity 104b-3a. When the multi-stage telescopic air rod 1 204 changes over a large range, the excess gas is contained in the cavity 104b-3a, while the change range of the multi-stage telescopic air rod 2 104a is smaller. This ensures that the distance adjustment between the moving plate 103 and the fixed plate 102 is more precise and stable, and can better adapt to different temperatures and scenarios, increasing scalability.

[0041] Example 2

[0042] Reference Figures 3-8 This is the second embodiment of the present invention, which differs from the first embodiment in that: two pneumatic components 104 are provided, symmetrically arranged on both sides of the fixed plate 102. Each pneumatic component 104 has two symmetrical branch pipes 104c on the outside of the cavity 104b-1, and the end of each branch pipe 104c has an outlet on the upper surface of the fixed plate 102. Each outlet corresponds to a cap, and any outlet is connected to a hose 205.

[0043] Four outlets are designed at the four corners of the upper surface of the fixed plate 102. These outlets are used to connect the temperature sensing component 200. Specifically, when the temperature sensing component 200 (i.e., the high thermal expansion alloy strip) is close to a specific corner, the cover at that corner is opened, and the hose of the temperature sensing component 200 is connected to the outlet. Then, by rotating the switching valve 104b, the branch pipe 104c corresponding to the outlet is connected to the multi-stage telescopic air rod 104a. In this way, the temperature sensing component 200 can transmit the temperature change signal to the corresponding multi-stage telescopic air rod 104a through the hose 205, the outlet, and the branch pipe 104c. When the multi-stage telescopic air rod 104a expands or contracts due to temperature changes, since another multi-stage telescopic air rod 104a is fixed on the other side of the moving plate 103, it also adapts accordingly. In short, different branch pipes 104c can be selected according to the location of the temperature sensing component 200. This design allows the system to flexibly adjust the path according to actual needs, ensuring transmission efficiency while also improving the system's adaptability.

[0044] The pneumatic component 104 includes a multi-stage telescopic air rod 104a and a switching valve 104b, wherein the free end of the multi-stage telescopic air rod 104a is fixed to the side of the sliding foot 103a, and the fixed end of the multi-stage telescopic air rod 104a is connected to the switching valve 104b. The switching valve 104b includes a cavity 104b-1 that communicates with the fixed end of the multi-stage telescopic air rod 104a. A valve body 104b-2 is provided in the cavity 104b-1. A connecting channel 104b-3 is provided on the valve body 104b-2. The valve body 104b-2 can be rotated to adjust the direction of the connecting channel 104b-3 and connect the corresponding branch pipe 104c with the multi-stage telescopic air rod 104a. A sliding groove 102a is provided on the lower surface of the fixed plate 102. A sliding foot 103a is provided on the upper surface of the moving plate 103. The sliding foot 103a slides in the sliding groove 102a, and the pneumatic component 104 is located on the side of the sliding groove 102a. The branch pipe 104c includes a channel body 104c-1 and a piston 104c-2 that slides along the channel body 104c-1. The volume of the channel body 104c-1 is greater than the volume of the multi-stage telescopic air rod 204 and the multi-stage telescopic air rod 104a.

[0045] An adjustable switching valve 104b is provided, which controls the airflow speed between the branch pipe 104c and the multi-stage telescopic air rod, and can adaptively adjust the moving speed of the moving plate 103. Since the valve body 104b-2 has a cavity 104b-3a inside, the change of the cavity 104b-3a can also be controlled. And since the capacity of the branch pipe 104c is greater than the capacity of the first multi-stage telescopic air rod 204 and the second multi-stage telescopic air rod 104a, when the multi-stage telescopic air cylinder changes a large range, the excess gas is contained in the cavity 104b-3a, and the change range of the second multi-stage telescopic air rod 104a is smaller, so as to adapt to the passage distance between the moving plate 103 and the fixed plate 102.

[0046] The connecting channel 104b-3 includes a cavity 104b-3a disposed within the valve body 104b-2. Two strip grooves 104b-3b are formed on the outer wall of the valve body 104b-2. One strip groove 104b-3b corresponds to the fixed end of the multi-stage telescopic rod II, and the other strip groove 104b-3b is connected to any branch pipe 104c. A self-locking component 104b-4 is disposed inside the valve body 104b-2, and the self-locking component 104b-4 is located above the cavity 104b-3a.

[0047] It should be noted that the self-locking component 104b-4 is used to lock the height and angle of the valve body 104b-2 in the cavity 104b-1 (i.e., to lock the adjusted position of the valve body 104b-2). Specifically, a cavity is set in the upper half of the valve body 104b-2, and multiple retractable and movable extrusion blocks are set in this cavity. A cone block is set below the extrusion blocks, and a spring is set at the bottom of the cone block. The spring pushes the cone block to move upward, and the cone block drives each extrusion block to move outward. The outward movement of the extrusion blocks abuts against the inner wall of the cavity 104b-1, thereby locking the position of the valve body 104b-2. A button is set at the top of the cone block, and a groove is opened on the upper surface of the fixing plate 102. The upper end of the button is located in the groove and does not exceed the upper surface of the groove. Thus, simply pressing down on the button can unlock the self-locking component 104b-4, and releasing the button will lock the self-locking component 104b-4.

[0048] It should also be noted that the outer wall of the valve body 104b-2 is provided with three strip grooves 104b-3b in a ring shape. One of the strip grooves 104b-3b corresponds to the fixed end of the multi-stage telescopic air rod 104a, and the other two strip grooves 104b-3b are connected to either of the two branch pipes 104c. In this way, the branch pipe 104c can be connected to the multi-stage telescopic air rod 104a through the strip groove 104b-3b, thereby connecting the air circuits in series and ensuring that the high expansion alloy strip 202 drives the multi-stage telescopic air rod 104a to extend and retract. This step is achieved by rotating the valve body 104b-2. Furthermore, by adjusting the height of the valve body 104b-2 within the cavity 104b-1, when the valve body 104b-2 extends into the cavity 104b-1, the cavity 104b-3a becomes smaller, thus accommodating less gas. This makes the change ratio between the multi-stage telescopic air rod 1 204 and the multi-stage telescopic air rod 2 104a closer and the changes more synchronized.

[0049] In this embodiment, the high-expansion alloy strip 202 senses temperature. When the temperature is high, the high-expansion alloy strip 202 expands and contracts at its end, thereby pushing the multi-stage telescopic air rod 204 to expand and contract. Since the multi-stage telescopic air rod 204 is connected to the branch pipe 104c of the pneumatic component 104 through the hose 205, the gas inside the multi-stage telescopic air rod 204 pushes the piston 104c-2 inside the branch pipe 104c to move. Since the branch pipe 104c is connected to the multi-stage telescopic air rod 104a through the switching valve 104b, the multi-stage telescopic air rod 104a expands and contracts, thereby pushing the sliding foot 103a of the moving plate 103 to slide in the sliding groove 102a of the fixed plate 102, realizing the position adjustment between the moving plate 103 and the fixed plate 102, thereby adjusting the misalignment area of ​​the through holes of the two, and realizing automatic control of the ventilation volume.

[0050] The remaining structure is the same as that in Example 1.

[0051] Example 3

[0052] Reference Figures 1-3 This is the third embodiment of the present invention, which differs from the second embodiment in that: the temperature sensing component 200 includes a housing 201 suspended on a chassis. A high-expansion alloy strip 202 is disposed inside the housing 201, and the high-expansion alloy strip 202 is shaped like an Archimedean spiral. Several guide rollers 203 arranged in a spiral pattern are disposed on the outside of the high-expansion alloy strip 202 to limit the extension and retraction direction of the high-expansion alloy strip 202. A multi-stage telescopic air rod 204 is disposed at the end of the high-expansion alloy strip 202, and the multi-stage telescopic air rod 204 is connected to a pneumatic component 104 via a hose 205. The housing 201 is circular, and one side is set as an opening, facing the chassis ventilation hole or the heat source.

[0053] One side of the housing 201 is designed as an opening facing the heat-generating part of the chassis, ensuring that the high-expansion alloy strip 202 can effectively sense temperature changes inside the chassis and respond promptly with expansion and contraction. Several guide rollers 203 are provided on both sides of the high-expansion alloy strip 202, clamping and limiting it to ensure that expansion or contraction occurs only at the end. This change is sensed by the multi-stage telescopic air rod 204 located at the end and directly fed back through the air rod. The multi-stage telescopic air rod is connected to the pneumatic component 104 via a flexible hose 205, providing a flexible connection between the two. This allows the temperature sensing component 200 and the floor assembly 100 to have a degree of independence, enabling the temperature sensing component 200 to be installed anywhere.

[0054] High-expansion alloy strip 202 is one of the key components in the automatic floor ventilator system. It is used to sense temperature changes in the machine room and drive subsequent mechanical actions through its own thermal expansion effect. In order to ensure good thermal expansion performance and mechanical strength, a variety of high-expansion alloy materials can be selected. The following are some commonly used high-expansion alloys and their characteristics: (1) Cu60Zn40 alloy: This is a brass alloy composed of 60% copper (Cu) and 40% zinc (Zn). It has a high coefficient of linear expansion, which is about 19×10 in the temperature range of 20 to 100℃. -6 / ℃. This alloy has good processing performance and a high coefficient of thermal expansion, making it suitable for applications requiring a large thermal expansion effect. (2) FeNi22Cr3 alloy: This is an iron-nickel-chromium alloy containing approximately 22% nickel (Ni), 3% chromium (Cr), and the remainder iron (Fe). Its coefficient of linear expansion is approximately 18.5 × 10⁻⁶ in the temperature range of 20 to 100℃. -6 / ℃. This alloy not only has a high coefficient of thermal expansion, but also good strength and corrosion resistance. (3) FeNi20Mn6 alloy: This is an iron-nickel-manganese alloy containing about 20% nickel (Ni) and 6% manganese (Mn), with the remainder being iron (Fe). Its coefficient of linear expansion is about 21×10 in the temperature range of 20 to 100℃. -6 / ℃. This alloy also has a high coefficient of thermal expansion and good mechanical properties. (4) FeNi13Mn7 alloy: This is an iron-nickel-manganese alloy containing about 13% nickel (Ni) and 7% manganese (Mn), with the remainder being iron (Fe). Its coefficient of linear expansion is about 21 × 10⁻⁶ in the temperature range of 20 to 100℃. -6 / ℃. This alloy has a high coefficient of thermal expansion and good processing performance. (5) Mn72Cr18Ni10 alloy: This is a manganese-chromium-nickel alloy containing about 72% manganese (Mn), 18% chromium (Cr) and 10% nickel (Ni). Its coefficient of linear expansion is about 26×10 in the temperature range of 20 to 100℃. -6 / ℃. This alloy has a very high coefficient of thermal expansion, making it suitable for applications requiring significant thermal expansion.

[0055] The high-expansion alloy strip 202 is one of the core components of the automatic floor ventilator system. It is used to sense temperature changes in the machine room and drive subsequent mechanical actions through its own thermal expansion effect. Cu60Zn40 alloy, FeNi22Cr3 alloy, FeNi20Mn6 alloy, FeNi13Mn7 alloy, and Mn72Cr18Ni10 alloy were chosen as the materials for the high-expansion alloy strip 202 because these alloys have high coefficients of thermal expansion, which can meet the requirements of the automatic floor ventilator system.

[0056] In this embodiment, a high-expansion alloy strip 202 is placed near the heat-generating area of ​​the chassis for temperature sensing. When the temperature is high, the high-expansion alloy strip 202 extends. Since the high-expansion alloy strip 202 is limited by multiple guide rollers 203 around it, it can only extend and retract at the end, and thus can only push the multi-stage telescopic air rod 1 204 to extend and retract. Since the multi-stage telescopic air rod 1 204 is connected to the branch pipe 104c of the pneumatic component 104 through a hose, the gas inside the multi-stage telescopic air rod 1 204 pushes the piston 104c-2 inside the branch pipe 104c to move, and then the pneumatic component 104 drives the multi-stage telescopic air rod 2 104a to extend and retract, thereby adjusting the misalignment area of ​​the through hole between the moving plate 103 and the fixed plate 102.

[0057] The remaining structure is the same as that in Example 2.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An adjustable ventilated floor driven by a high-expansion alloy, characterized in that: include, A floor assembly (100) includes a bracket (101) and a fixed plate (102) mounted on the bracket (101). A movable plate (103) is slidably disposed along the lower surface of the fixed plate (102). A pneumatic component (104) is disposed between the movable plate (103) and the fixed plate (102). The pneumatic component (104) pushes the movable plate (103) to slide, thereby adjusting the misalignment area of ​​the through holes on the movable plate (103) and the fixed plate (102). The temperature sensing component (200) includes a housing (201) suspended on a chassis. A high-expansion alloy strip (202) is provided inside the housing (201). The high-expansion alloy strip (202) is shaped like an Archimedean spiral. A number of guide rollers (203) arranged in a spiral pattern are provided on the outside of the high-expansion alloy strip (202) to limit the extension and retraction direction of the high-expansion alloy strip (202). A multi-stage telescopic air rod (204) is provided at the end of the high-expansion alloy strip (202). The multi-stage telescopic air rod (204) is connected to the pneumatic component (104) through a hose (205). The lower surface of the fixed plate (102) is provided with a sliding groove (102a), and the upper surface of the movable plate (103) is provided with a sliding foot (103a). The sliding foot (103a) slides in the sliding groove (102a), and the pneumatic component (104) is located on the side of the sliding groove (102a). The pneumatic component (104) includes a multi-stage telescopic air rod (104a) and a switching valve (104b), wherein the free end of the multi-stage telescopic air rod (104a) is fixed to the side of the sliding foot (103a), and the fixed end of the multi-stage telescopic air rod (104a) is connected to the switching valve (104b). The switching valve (104b) includes a cavity (104b-1) that is connected to the fixed end of the multi-stage telescopic air rod (104a). Two symmetrical branch pipes (104c) are provided on the outside of the cavity (104b-1). The end of each branch pipe (104c) is provided with an outlet on the upper surface of the fixed plate (102). Each outlet corresponds to a cap, and any outlet is connected to the hose (205).

2. The adjustable ventilated floor driven by a high-expansion alloy according to claim 1, characterized in that: A valve body (104b-2) is provided in the cavity (104b-1). The valve body (104b-2) is provided with a connecting channel (104b-3). The valve body (104b-2) is rotatable to adjust the direction of the connecting channel (104b-3) and connect the corresponding branch pipe (104c) with the multi-stage telescopic air rod II (104a).

3. The adjustable ventilated floor driven by a high-expansion alloy according to claim 2, characterized in that: The connecting channel (104b-3) includes a cavity (104b-3a) disposed within the valve body (104b-2). Two strip grooves (104b-3b) are formed on the outer wall of the valve body (104b-2). One of the strip grooves (104b-3b) corresponds to the fixed end of the second multi-stage telescopic air rod (104a), and the other strip groove (104b-3b) is connected to any of the branch pipes (104c). A self-locking component (104b-4) is disposed inside the valve body (104b-2) and is located above the cavity (104b-3a).

4. The adjustable ventilated floor driven by a high-expansion alloy according to claim 3, characterized in that: The branch pipe (104c) includes a channel body (104c-1) and a piston (104c-2) that slides along the channel body (104c-1). The volume of the channel body (104c-1) is greater than the volume of the first multi-stage telescopic air rod (204) and the second multi-stage telescopic air rod (104a).

5. The adjustable ventilated floor driven by a high-expansion alloy according to claim 4, characterized in that: Two pneumatic components (104) are provided and are symmetrically arranged on both sides of the fixed plate (102).

6. The adjustable ventilated floor driven by a high-expansion alloy according to claim 5, characterized in that: The housing (201) is circular, and one of its sides is set as an opening, with that side facing the ventilation hole or heat source of the chassis.

7. The adjustable ventilated floor driven by a high-expansion alloy according to claim 5, characterized in that: The high expansion alloy strip (202) is Cu60Zn40 alloy, FeNi22Cr3 alloy, FeNi20Mn6 alloy, FeNi13Mn7 alloy or Mn72Cr18Ni10 alloy.

Citation Information

Patent Citations

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    CN105188312A

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    CN219794522U