A time-delay on valve

Abstract

The utility model provides a kind of delay conduction valve, belong to valve equipment technical field, including valve body, passive magnet, active magnet and output mechanism.Valve body is equipped with delay cavity, first flow path and second flow path, and valve body has first conduction state and second conduction state;Passive magnet is slidably arranged in first flow path;One end of output mechanism is slidably arranged in delay cavity, and the end is connected with active magnet, and the other end is used to be connected with the drive mechanism of solid elastic card refrigeration heating device.The utility model's first flow path and second flow path are controlled by active magnet and passive magnet, and active magnet has moving process, and the time corresponding to the moving process can correspond to the linear change time of solid elastic card material in early loading stage / early unloading stage, to ensure that first flow path is conducted in the first moment of solid elastic card material loading heat release, and second flow path is conducted in the first moment of solid elastic card material unloading heat absorption.

Description

Technical Field

[0001] This utility model belongs to the field of valve equipment technology, and more specifically, it relates to a time-delayed conduction valve. Background Technology

[0002] Solid-state spring-loaded cooling and heating is an emerging green and environmentally friendly cooling and heating technology. By loading or unloading solid-state spring-loaded materials, it causes a phase change or reverse phase change to generate heat or cold, thereby achieving cooling or heating.

[0003] In refrigeration equipment made from solid spring-loaded materials, a drive mechanism periodically applies and releases stress on the solid spring-loaded material, causing it to release heat to rise and absorb heat to fall. To effectively utilize the heat and cold generated, piping and fluid are typically installed in the refrigeration and heating equipment. The fluid carries the heat or cold generated by the solid spring-loaded material to a heat exchanger to provide cooling or heating to the target external environment.

[0004] The piping typically includes a common pipe and two branch pipes. Specifically, the drive mechanism works in conjunction with the piping. During loading, the common pipe connects with one of the pipes to deliver hot fluid to the heat exchanger; during unloading, the common pipe connects with the other pipe to deliver cold fluid to the other heat exchanger.

[0005] Since the solid-state cartridge material does not continuously release or absorb heat during the loading / unloading phases, its linear change during the early loading and unloading phases does not generate heat. If the piping is switched during the early loading / unloading phases, it cannot be fully guaranteed that the solid-state cartridge material will conduct at the very first moment of heat release during loading / heat absorption during unloading, thus affecting heat transfer / cooling efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a delayed conduction valve, which aims to solve the technical problem in the prior art that it is impossible to ensure that the solid spring material conducts at the first moment of loading heat release / unloading heat absorption, thus affecting the heat transfer / cooling efficiency.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a time-delayed on-state valve, comprising: The valve body has a non-interconnected delay cavity, a first guide path, and a second guide path. The first guide path and the second guide path are respectively connected to the solid-state spring-loaded refrigeration and heating device. The valve body has a first conducting state and a second conducting state. In the first conducting state, the first guide path is disconnected, and the second guide path is connected to the solid-state spring-loaded refrigeration and heating device. In the second conducting state, the second guide path is disconnected, and the first guide path is connected to the solid-state spring-loaded refrigeration and heating device. A passive magnet is slidably disposed within the first conductive path; and The output mechanism has one end slidably disposed in the delay cavity and connected to an active magnet, and the other end is used to connect to the drive mechanism of the solid-state spring-loaded cooling and heating device. The drive mechanism is used to drive the output mechanism to move. When the active magnet moves under the drive of the output mechanism to engage with the passive magnet, the valve body switches from the first conducting state to the second conducting state; when the active magnet moves under the drive of the output mechanism to disconnect from the passive magnet, the valve body switches from the second conducting state to the first conducting state.

[0008] In one possible implementation, the output mechanism includes: The pressure rod has one end located inside the delay cavity and connected to the active magnet, and the other end extends out of the delay cavity; the pressure rod is provided with a sliding groove; A slide rod, slidably disposed within the slide groove, with one end extending out of the slide groove; and A power component is connected to the extended end of the slide rod via a locking component; the power component is used to connect to the drive mechanism.

[0009] In some embodiments, a third elastic element is connected between the pressure rod and the active magnet.

[0010] In some embodiments, the output mechanism further includes: A sliding sleeve is slidably disposed within the delay cavity; the active magnet is fixed inside the sliding sleeve, and one end of the pressure rod is slidably disposed inside the sliding sleeve; When the pressure rod abuts against the end wall of the sliding sleeve, the pressure rod drives the sliding sleeve to slide within the delay cavity.

[0011] In some embodiments, one end of the sliding sleeve extends out of the delay cavity and expands radially outward to form a sliding cavity; a thrust block that slides radially is provided inside the sliding cavity; the thrust block is connected to a stop member that controls its sliding. When the pressure rod abuts against the end wall of the sliding sleeve extending from the delay cavity, the pressure rod drives the sliding sleeve to slide towards the bottom wall of the delay cavity, so that the active magnet moves to the bottom wall of the delay cavity and attracts the passive magnet. After the pressure rod passes through the thrust block axially, the stop member drives the thrust block to move radially toward the central axis of the sliding cavity, so that the thrust block and the pressure rod can be limited in the axial direction; After the pressure rod returns to its original position and abuts against the thrust block axially, the pressure rod drives the sliding sleeve and the active magnet to slide away from the bottom wall of the delay cavity, so that the active magnet is disconnected from the passive magnet. When the sliding sleeve returns to the preset position, the stop member drives the thrust block to move radially away from the central axis of the sliding cavity, so that the pressure rod passes through the thrust block and returns to abut against the end wall of the delay cavity.

[0012] In some embodiments, the stop member is fixedly connected to the outer wall of the valve body; the stop member has a limiting portion that extends into the sliding cavity; the limiting portion has a first inclined surface, the thrust block has a second inclined surface, and the first inclined surface abuts against the second inclined surface.

[0013] In one possible implementation, the valve body is provided with a first flow guiding cavity, a second flow guiding cavity, a main channel, a first branch channel, and a second branch channel; the main channel, the first flow guiding cavity, and the first branch channel constitute the first flow guiding path; the main channel, the second flow guiding cavity, and the second branch channel constitute the second flow guiding path. The first flow guiding cavity is provided with a first sealing structure, and the second flow guiding cavity is provided with a second sealing structure. The first sealing structure is connected to the second sealing structure; the passive magnet is connected to the first sealing structure.

[0014] In some embodiments, the valve body includes: The main body has a first cavity at one end and a second cavity at the other end; the main body also has the main channel, the first branch channel and the second branch channel; A first fixed sleeve, one end of which is fixedly disposed within the first cavity, and the other end extending axially out of the first cavity; the first fixed sleeve is provided with a partition, which divides the inner cavity of the first fixed sleeve into the delay cavity and a third cavity, the third cavity and the first cavity forming the first flow guiding cavity; and The second fixed sleeve has one end fixedly disposed in the second cavity and the other end extending axially out of the second cavity; the inner cavity of the second fixed sleeve and the second cavity together form the second flow guiding cavity.

[0015] In some embodiments, the first sealing structure includes: The first sealing element is slidably disposed within the third cavity and connected to the passive magnet; and The first elastic element is axially disposed between the partition and the first sealing body.

[0016] In some embodiments, the second sealing structure includes: The second sealing body is slidably disposed within the second fixed sleeve; the second sealing body is connected to the first sealing body via a linkage structure; and The second elastic element is axially disposed between the second sealing body and the second fixed sleeve.

[0017] The beneficial effects of the delayed conduction valve provided by this utility model are as follows: Compared with the prior art, the delayed conduction valve of this utility model has a first conduction path and a second conduction path that are not interconnected. The first conduction path is used to connect with the heat output pipeline of the solid-state spring-loaded refrigeration and heating device, and the second conduction path is used to connect with the cold output pipeline of the solid-state spring-loaded refrigeration and heating device. In the first conduction state, the second conduction path is unobstructed, allowing the cold fluid to be output to the cold heat exchanger through the cold pipeline. In the second conduction state, the first conduction path is unobstructed, allowing the hot fluid to be output to the heat exchanger through the hot pipeline. The on / off states of the first and second conductive paths are controlled by the active and passive magnets, respectively. When the active magnet moves under the drive of the output mechanism to engage with the passive magnet, the first conductive path is open and the second conductive path is closed. When the active magnet moves under the drive of the output mechanism to disconnect from the passive magnet, the second conductive path is open and the first conductive path is closed. Since the active magnet has a movement process, the time corresponding to this movement process can correspond to the linear change time of the solid spring material in the early stage of the loading / unloading phase, so as to ensure that the first conductive path is turned on at the first moment of heat release during solid spring material loading and the second conductive path is turned on at the first moment of heat absorption during solid spring material unloading, thereby improving the heat transfer / cooling efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the time-delayed conduction valve provided in an embodiment of this utility model; Figure 2 An exploded view of the time-delay valve provided in this embodiment of the utility model; Figure 3 Schematic diagram of the internal structure of the time-delay valve provided in this embodiment of the utility model Figure 1 (In the figure, the valve body is in the first conducting state, and the pressure rod is in contact with the end wall of the sliding cavity.) Figure 4 Schematic diagram of the internal structure of the time-delay valve provided in this embodiment of the utility model Figure 2(In the figure, the valve body is in the second conducting state, and the pressure rod is axially abutting against the thrust block.) Figure 5 for Figure 4 Enlarged structural diagram of point A in the middle circle; Figure 6 Schematic diagram of the internal structure of the time-delay valve provided in this embodiment of the utility model Figure 3 (The valve body in the figure is in the second conducting state); Figure 7 Schematic diagram of the main body of the time-delayed conduction valve provided in this embodiment of the utility model Figure 1 ; Figure 8 Schematic diagram of the main body of the time-delayed conduction valve provided in this embodiment of the utility model Figure 2 .

[0020] In the picture: 1. Valve body; 11. Main body; 111. Mounting wing; 12. First fixing sleeve; 121. Partition plate; 13. Second fixing sleeve; 14. First guide cavity; 15. Second guide cavity; 16. Main channel; 17. First branch channel; 18. Second branch channel; 2. Passive magnet; 3. Output mechanism; 31. Pressure rod; 311. Slide groove; 32. Slide rod; 33. Power component; 34. Locking component; 35. Sliding sleeve; 351. Sliding cavity; 36. Thrust block; 361. Second inclined surface; 37. Stop component; 371. Limiting part; 372. First inclined surface; 4. Active magnet; 5. Third elastic element; 6. First sealing structure; 61. First sealing body; 62. First elastic element; 7. Second sealing structure; 71. Second sealing body; 72. Second elastic element; 8. Linkage structure; 91. Main pipeline; 92. First branch pipeline; 93. Second branch pipeline; 100, Delay cavity; 200, First guide path; 300, Second guide path. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please refer to the following: Figures 1 to 6The delayed-action valve provided by this utility model is described below. The delayed-action valve includes a valve body 1, a passive magnet 2, an active magnet 4, and an output mechanism 3. The valve body 1 has a delayed-action cavity 100, a first guide path 200, and a second guide path 300 that are not interconnected. The first guide path 200 and the second guide path 300 are respectively connected to a solid-state cassette cooling and heating device. The valve body 1 has a first conducting state and a second conducting state. In the first conducting state, the first guide path 200 is disconnected, and the second guide path 300 is connected to the solid-state cassette cooling and heating device. In the second conducting state, the second guide path 300 is disconnected, and the first guide path 200 is connected to the solid-state cassette cooling and heating device. The passive magnet 2 is slidably disposed within the first guide path 200. One end of the output mechanism 3 is slidably disposed within the delayed-action cavity 100, and this end is connected to the active magnet 4. The other end is used to connect to the drive mechanism of the solid-state cassette cooling and heating device, and the drive mechanism is used to drive the output mechanism 3 to move.

[0023] When the active magnet 4 moves under the drive of the output mechanism 3 to engage with the passive magnet 2, the valve body 1 switches from the first conducting state to the second conducting state; when the active magnet 4 moves under the drive of the output mechanism 3 to disconnect from the passive magnet 2, the valve body 1 switches from the second conducting state to the first conducting state.

[0024] The solid-state spring-loaded cooling and heating device includes a solid-state spring-loaded material body and a driving mechanism. The solid-state spring-loaded material body is made of solid-state spring-loaded material, which is a type of functional material capable of undergoing a reversible phase transformation under mechanical stress, accompanied by significant heat absorption / release effects. Its core mechanism is the elasto-thermal effect. Specifically, when the solid-state spring-loaded material is compressed, a phase transformation from austenite to martensite occurs, releasing heat; during the unloading of mechanical stress and the process of returning from the compressed state to the original state, martensite reverses to austenite, absorbing heat. The above-mentioned characteristics of solid-state spring-loaded materials are existing technology and will not be elaborated further here. Because the solid-state spring-loaded material body is made of solid-state spring-loaded material, it possesses the characteristics of releasing heat upon compression and absorbing heat upon return to its original state.

[0025] The compression and return processes of the solid cartridge material are controlled by a drive mechanism connected to the solid cartridge material, which has the freedom of linear movement. When the drive mechanism compresses the solid cartridge material, the solid cartridge material releases heat; when the drive mechanism returns to its original position, the solid cartridge material absorbs heat. The drive mechanism also simultaneously controls the movement of the output mechanism 3. That is, when the drive mechanism compresses the solid cartridge material, it also drives the output mechanism 3 and the active magnet 4 to move towards the passive magnet 2; during the return process, it also drives the output mechanism 3 and the active magnet 4 to move away from the passive magnet 2.

[0026] To effectively utilize the heat and cold generated by the solid-state cartridge material, piping and fluids are typically installed in the refrigeration and heating equipment, with heat and cold transferred via the fluids. Specifically, the piping includes a common piping, a heat output piping, and a cold output piping. During loading, the common piping connects to the heat output piping, delivering the hot fluid to the heat exchanger; during unloading, the common piping connects to the cold output piping, delivering the cold fluid to the cold heat exchanger. Specifically, the first guiding passage 200 is connected to the heat output piping of the solid-state cartridge refrigeration and heating device, and the second guiding passage 300 is connected to the cold output piping of the solid-state cartridge refrigeration and heating device.

[0027] Solid-state cartridge materials undergo a linear change during the initial loading / unloading phase, without generating heat. If the fluid pipeline is switched immediately upon the start of the drive mechanism's movement, the pipeline will be open before the material actually begins to release or absorb heat, resulting in fluid idling, wasted energy, and an inability to capture all heat or cold at the "first moment."

[0028] To address the aforementioned issues, a delay chamber 100 is added to the valve body 1. The movement of the drive mechanism first requires the output mechanism 3 and its active magnet 4 to move a short distance within the delay chamber 100. The time consumed by this short distance corresponds precisely to the duration of the linear change phase of the solid spring material. Only after the active magnet 4 has completed this delayed distance will it engage or disengage with the passive magnet 2, thereby triggering the state switch of the valve body 1. This ensures that the movement of the valve body 1 is highly synchronized with the starting point of the material phase change.

[0029] Specifically, the drive mechanism begins loading, but at this time the solid-state cartridge material is in its linear change phase. Due to a delay design, valve body 1 remains in the first conducting state, and the first conducting path 200 is disconnected. At the instant the material's linear phase ends and heat release begins, the active magnet 4 moves to the position where it engages with the passive magnet 2, immediately switching valve body 1 to the second conducting state, thus opening the heat output pipeline. Therefore, the time from the start of loading to valve body 1 switching to the second conducting state is the time of the solid-state cartridge material's linear loading phase. The heat transfer fluid can begin carrying away heat from the solid-state cartridge material at the very first moment of heat release, improving heat transfer efficiency.

[0030] It should be noted that the attraction of the active magnet 4 to the passive magnet 2 does not mean that the active magnet 4 must be in contact with the passive magnet 2. When the active magnet 4 moves into the range of the attraction stroke, the passive magnet 2 will move closer to the active magnet 4, thus switching to the second conduction state; then the loading mechanism continues to compress the solid spring material body, which will also drive the pressure rod 31 and the active magnet 4 to continue to move until the loading stroke ends.

[0031] The drive mechanism begins unloading, and the solid-state cartridge material also undergoes a linear change period. At this time, valve body 1 is in the second conducting state due to the previous loading. The output mechanism 3 moves in the opposite direction under the drive mechanism, and the active magnet 4 needs to travel through the delay stroke to separate from the passive magnet 2. At the instant of separation, valve body 1 switches back to the first conducting state, opening the cold output pipeline. The drive mechanism continues to return to its original position, simultaneously driving the pressure rod 31 and the active magnet 4 to move in the opposite direction within the delay chamber 100. Therefore, the time from the start of unloading to valve body 1 switching to the first conducting state is the time of the linear unloading phase of the solid-state cartridge material. The cold fluid can flow in as soon as the solid-state cartridge material begins to absorb heat and cool, efficiently carrying away the cold energy.

[0032] The switching power of valve body 1 comes from the attraction or repulsion between the active magnet 4 and the passive magnet 2. This is a non-contact force transmission method, avoiding problems such as mechanical jamming and wear, and ensuring high reliability. Once the active magnet 4 reaches the effective working distance, the magnetic force will cause it to quickly attract or push the passive magnet 2 away, making the switching action very rapid and decisive, further ensuring the requirement of immediate conduction.

[0033] It should be noted that both the first guide path 200 and the second guide path 300 are equipped with valves or sealing structures. The two valves (or two sealing structures) are connected to each other, and the valve (or sealing structure) in the first guide path 200 is also connected to the passive magnet 2.

[0034] The beneficial effects of the time-delayed conduction valve provided by this utility model are as follows: Compared with the prior art, the on / off state of the first conduction path 200 and the second conduction path 300 is controlled by the active magnet 4 and the passive magnet 2. Since the active magnet 4 has a moving process, the time corresponding to this moving process can correspond to the linear change time of the solid spring material in the early stage of loading / unloading, so as to ensure that the first conduction path 200 is turned on at the first moment of the solid spring material loading and releasing heat, and the second conduction path 300 is turned on at the first moment of the solid spring material unloading and releasing heat, thereby improving the heat transfer / cooling efficiency.

[0035] In some embodiments, the output mechanism 3 described above may employ, for example... Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The output mechanism 3 includes a pressure rod 31, a slide rod 32, and a power component 33. One end of the pressure rod 31 is located inside the delay cavity 100 and is connected to an active magnet 4, while the other end extends out of the delay cavity 100. The pressure rod 31 is provided with a slide groove 311. The slide rod 32 is slidably disposed in the slide groove 311, and one end extends out of the slide groove 311. The power component 33 is connected to the extended end of the slide rod 32 through a locking component 34. The power component 33 is used to connect with the drive mechanism.

[0036] The slide bar 32 can slide within the slide groove 311. When the drive mechanism starts loading, the drive mechanism drives the power component 33 and the slide bar 32 to slide towards the valve body 1. When the power component 33 axially abuts against the end of the pressure rod 31, the power component 33 then drives the pressure rod 31 and the active magnet 4 to slide towards the passive magnet 2. When the drive mechanism starts unloading, the drive mechanism drives the power component 33 and the slide bar 32 to slide away from the valve body 1. When the part of the slide bar 32 that extends into the slide groove 311 axially abuts against the end of the pressure rod 31, the power component 33 then drives the pressure rod 31 and the active magnet 4 to slide away from the passive magnet 2.

[0037] The output mechanism 3, through its idle stroke design, transforms the continuous motion of the drive mechanism into delayed pushing and delayed pulling of the pressure rod 31 and the active magnet 4. For the loading process, the loading delay time includes the time it takes for the slide rod 32 to slide within the groove 311 and the time it takes for the active magnet 4 to move into the attraction stroke. For the unloading process, the unloading delay time includes the time it takes for the slide rod 32 to slide within the groove 311 and the time it takes for the active magnet 4 to move out of the attraction stroke. By allowing the slide rod 32 to slide a certain distance within the groove 311, the attraction stroke between the active magnet 4 and the passive magnet 2 can be reduced accordingly, eliminating the need for a magnet with extremely high attraction force and also reducing the length of the delay cavity 100.

[0038] The extended end of the power component 3 and the slide rod 32 is connected by a locking component 34, which is used to fix the slide rod 32 externally. The locking component 34 can also be removed from the slide rod 32, and after adjusting the extension length of the slide rod 32 in the slide groove 311, the locking component 34 can be reinstalled. Since the extension length of the slide rod 32 is adjustable, that is, the sliding time of the slide rod 32 in the slide groove 311 is adjustable, it can be adapted to different suction strokes and different initial linear change times of solid spring clip materials.

[0039] In some embodiments, the output mechanism 3 described above may also employ, for example... Figure 2 , Figure 3 and Figure 4 The structure shown is described in the following document. Figure 2 , Figure 3 and Figure 4 A third elastic element 5 is connected between the pressure rod 31 and the active magnet 4.

[0040] The third elastic element 5 is used to increase the time that the pressure rod 31 moves toward the active magnet 4 within the delay cavity 100. Specifically, when the drive mechanism starts loading, the drive mechanism drives the power element 33 and the slide rod 32 to slide toward the valve body 1. When the power element 33 axially abuts against the end of the pressure rod 31, the power element 33 then drives the pressure rod 31, the third elastic element 5, and the active magnet 4 to slide toward the passive magnet 2. When the active magnet 4 and the passive magnet 2 are attracted, the valve body 1 switches from the first conducting state to the second conducting state, and the first conducting passage 200 is opened. At this time, the loading mechanism will also squeeze the solid spring material, which will drive the pressure rod 31 to continue moving. The pressure rod 31 compresses the third elastic element 5, and the time that the third elastic element 5 is compressed can correspond to the time that the solid spring material is compressed and releases heat.

[0041] When the drive mechanism begins to unload, the drive mechanism drives the power component 33 and the slide rod 32 to slide away from the valve body 1. When the part of the slide rod 32 that extends into the slide groove 311 axially abuts against the end of the pressure rod 31, the power component 33 drives the pressure rod 31 to slide away from the passive magnet 2. The pressure rod 31 no longer compresses the third elastic element 5, and the third elastic element 5 resets. Then, the pressure rod 31 drives the active magnet 4 to move away from the passive magnet 2 through the third elastic element 5. The active magnet 4 moves out of the attraction stroke range, and the passive magnet 2 disconnects from the active magnet 4 and resets, so that the valve body 1 switches to the first conduction state.

[0042] The stroke of the drive mechanism is designed to fully compress the solid spring material, and its stroke must be greater than the stroke required for the passive magnet 2 to be attracted or disengaged. Without the third elastic element 5, the time it takes for the solid spring material to heat up is the same as the time it takes for the active magnet 4 to move within the attraction stroke. This requires an appropriately larger attraction stroke, and magnets with very weak attraction force cannot be used.

[0043] The third elastic element 5 is positioned between the pressure rod 31 and the active magnet 4. When the passive magnet 2 and the active magnet 4 are attracted, even if the distance between them is very small, during the loading phase, the drive mechanism continues to push the pressure rod 31 to move. The pressure rod 31 no longer pushes the active magnet 4, but instead begins to compress the third elastic element 5. The excess stroke of the drive mechanism is absorbed by the compression of the third elastic element 5 and converted into stored elastic potential energy. The third elastic element 5 also provides additional stroke for the unloading process. When the third elastic element 5 returns to a certain position, the pressure rod 31 will drive the active magnet 4 back to its original position through it. Therefore, setting the third elastic element 5 can further reduce the attraction stroke between the active magnet 4 and the passive magnet 2 (the active magnet 4 moves to the bottom wall of the delay cavity 100 before attracting the passive magnet 2, that is, the attraction stroke is equal to the separation distance between the delay cavity 100 and the first guide path 200), eliminating the need to use a magnet with high attraction force, and also correspondingly reducing the length of the delay cavity 100.

[0044] In the above embodiments, since there is only a third elastic element 5 between the pressure rod 31 and the active magnet 4, if the pressure rod 31 is to drive the active magnet 4 to move, then the third elastic element 5 must be connected to both the pressure rod 31 and the active magnet 4, which makes the assembly method of the third elastic element 5 complex. To solve the above problems, in some embodiments, the output mechanism 3 can also adopt a method such as... Figure 2 , Figure 3 and Figure 4 The structure shown is described in the following document. Figure 2 , Figure 3 and Figure 4 The output mechanism 3 also includes a sliding sleeve 35. The sliding sleeve 35 is slidably disposed within the delay cavity 100; the active magnet 4 and the third elastic element 5 are both fixed inside the sliding sleeve 35, and one end of the pressure rod 31 is slidably disposed inside the sliding sleeve 35. When the pressure rod 31 abuts against the end wall of the sliding sleeve 35, the pressure rod 31 drives the sliding sleeve 35 to slide within the delay cavity 100.

[0045] The sliding sleeve 35 provides a support base for the active magnet 4 and the third elastic element 5. Without the sliding sleeve 35, the third elastic element 5 would need to be independently and precisely connected and fixed to both the pressure rod 31 and the active magnet 4 simultaneously. This is very difficult to operate within the confined time delay cavity 100, and can easily lead to assembly errors, inconsistent pre-compression, or even damage to the elastic element.

[0046] The sliding sleeve 35 serves as an independent support and can be assembled outside the valve body 1. Operators can easily insert the active magnet 4 and the third elastic element 5 into the sliding sleeve 35, and then install the output mechanism 3 into the delay chamber 100. This modular design transforms complex internal assembly into simple external assembly, reducing assembly difficulty.

[0047] It should be noted that the sliding sleeve 35 includes a sleeve body and an end cap, and the end cap is detachably connected to the sleeve body. When the pressure rod 31 axially abuts against the end cap, the pressure rod 31 can drive the sliding sleeve 35 to slide within the delay cavity 100.

[0048] In some embodiments, the output mechanism 3 described above may also employ, for example... Figure 2 , Figure 3 and Figure 4 The structure shown is described in the following document. Figure 2 , Figure 3 and Figure 4One end of the sliding sleeve 35 extends out of the delay cavity 100 and expands radially outward to form a sliding cavity 351. A thrust block 36, which slides radially, is provided inside the sliding cavity 351. The thrust block 36 is connected to a stop 37 that controls its sliding. When the pressure rod 31 abuts against the end wall of the sliding sleeve 35 extending from the delay cavity 100, the pressure rod 31 drives the sliding sleeve 35 to slide towards the bottom wall of the delay cavity 100, causing the active magnet 4 to move to the bottom wall of the delay cavity 100 and attract the passive magnet 2. After the pressure rod 31 axially passes through the thrust block 36, the stop 37 drives the thrust block 36 to move radially towards the central axis of the sliding cavity 351, so that the thrust block 36 and the pressure rod 31 can form an axial alignment. The pressure rod 31 returns to its original position and axially abuts against the thrust block 36. The pressure rod 31 then drives the sliding sleeve 35 and the active magnet 4 to slide away from the bottom wall of the delay cavity 100, so that the active magnet 4 is disconnected from the passive magnet 2. When the sliding sleeve 35 returns to the preset position, the stop 37 drives the thrust block 36 to move radially away from the central axis of the sliding cavity 351, so that the pressure rod 31 passes through the thrust block 36 and returns to abut against the end wall of the delay cavity 100.

[0049] Specifically, when the drive mechanism starts loading, it drives the power component 33 and the slide rod 32 to slide closer to the valve body 1. When the power component 33 axially abuts against the end of the pressure rod 31, the power component 33 then drives the sliding sleeve 35 to slide towards the passive magnet 2 (i.e., at the separation point between the delay cavity 100 and the first guiding passage 200). When the active magnet 4 and the passive magnet 2 are attracted, the valve body 1 switches from the first conducting state to the second conducting state, and the first guiding passage 200 is opened. At this time, the loading mechanism will also compress the solid elastic material, which will drive the pressure rod 31 to continue moving. The pressure rod 31 axially passes through the thrust block 36 and compresses the third elastic element 5. The time it takes for the pressure rod 31 to move axially through the thrust block 36 to abut against the third elastic element 5 and the time it takes for the third elastic element 5 to be compressed correspond to the time it takes for the solid elastic material to compress and release heat.

[0050] When the drive mechanism begins to unload, it drives the power component 33 and the slide rod 32 to slide away from the valve body 1. When the part of the slide rod 32 that extends into the slide groove 311 axially abuts against the end of the pressure rod 31, the power component 33 drives the pressure rod 31 to slide away from the passive magnet 2. The pressure rod 31 no longer compresses the third elastic element 5, and the third elastic element 5 resets. When the pressure rod 31 moves to axially abut against the thrust block 36, the pressure rod 31 drives the sliding sleeve 35 and the active magnet 4 to slide away from the bottom wall of the delay cavity 100, so that the active magnet 4 is disconnected from the passive magnet 2. Since the thrust block 36 is connected to the stop component 37, when the sliding sleeve 35 returns to the preset position, the stop component 37 drives the thrust block 36 to move radially away from the central axis of the sliding cavity 351, so that the pressure rod 31 passes through the thrust block 36 and returns to abut against the end wall of the delay cavity 100. The time it takes for the pressure rod 31 to drive the active magnet 4 to return to its original position and the time it takes for the pressure rod 31 to pass through the thrust block 36 axially correspond to the time it takes for the solid spring clip material to return to its original position and absorb heat.

[0051] The sliding cavity 351 provides a moving base for the thrust block 36, providing the necessary installation space and radial sliding track for the thrust block 36. The state of the thrust block 36 determines the connection relationship between the pressure rod 31 and the sliding sleeve 35. When the thrust block 36 is inserted into the path of the pressure rod 31, it forms an axial limit with the end face of the pressure rod 31. At this time, the pressure rod 31 can pull the thrust block 36, thereby pulling the entire sliding sleeve 35. When the thrust block 36 is removed from the path of the pressure rod 31, the pressure rod 31 can pass freely through it, and no axial tension can be transmitted between the two. The thrust block 36 realizes the function of unidirectional force transmission. It allows the pressure rod 31 to always push the sliding sleeve 35, but can only pull the sliding sleeve 35 when it is in the locked position. The stop 37 is used to control the movement of the thrust block 36, controlling whether the thrust block 36 is locked or released according to the absolute position of the sliding sleeve 35.

[0052] By adding a thrust block 36 inside the sliding sleeve 35, a purely unidirectional drive control for bidirectional action is achieved. The drive mechanism only needs to perform a simple "push-pull" reciprocating motion, without any sensors or complex control, to reliably trigger the valve body 1 to switch between the two states, simplifying the requirements for external drive. Whether pushing or pulling, the force ultimately transmitted to the sliding sleeve 35 is rigid mechanical force, avoiding the problems of insufficient force and slow response that may occur when relying solely on elastic elements for pulling.

[0053] The entire locking and unlocking process of the thrust block 36 is automatically triggered by the stop component based on its own position, perfectly synchronized with the drive cycle, requiring no external intervention and improving the overall reliability of the output mechanism 3. Moreover, the entire output mechanism 3 can automatically return to its initial state after each working cycle, preparing for the next cycle and ensuring the continuity and stability of the operation.

[0054] In some embodiments, the stop 37 and the thrust block 36 may be connected by a method such as Figure 5 The structure shown is described in the following document. Figure 5 The stop member 37 is fixedly connected to the outer wall of the valve body 1; the stop member 37 has a limiting part 371 that extends into the sliding cavity 351; the limiting part 371 has a first inclined surface 372, and the thrust block 36 has a second inclined surface 361, with the first inclined surface 372 abutting against the second inclined surface 361.

[0055] The radial movement of the thrust block 36 does not require an additional power source; its energy comes entirely from the kinetic energy of the axial movement of the sliding sleeve 35 itself. When the sliding sleeve 35 is pushed to the bottom of the cavity by the pressure rod 31, the sliding sleeve 35 drives the thrust block 36 on it to move axially together. When the second inclined surface 361 of the thrust block 36 contacts the first inclined surface 372 of the fixed stop 37, the normal component force generated by the inclined surface will directly and automatically squeeze the thrust block 36 into the center of the sliding cavity 351, completing the locking position.

[0056] During the process of the sliding sleeve 35 being driven back to its original position by the pressure rod 31, since the stop 37 is fixed on the valve body 1 and does not move, the sliding sleeve 35 moves upward, and the first inclined surface 372 will push the second inclined surface 361 to move outward radially and exit the locked position, so as to ensure that the pressure rod 31 returns to its original position and abuts against the end face of the sliding sleeve 35.

[0057] By utilizing the contact of two inclined planes to control the radial movement of the thrust block 36, all complex sensors, electromagnets, motors, or hydraulic control components are eliminated, simplifying the structure of the thrust block 36 and the stop 37.

[0058] In some embodiments, the valve body 1 described above may be as follows: Figure 3 , Figure 4 and Figure 6 The structure shown is described in the following document. Figure 3 , Figure 4 and Figure 6 The valve body 1 is provided with a first guide cavity 14, a second guide cavity 15, a main channel 16, a first branch channel 17, and a second branch channel 18; the main channel 16, the first guide cavity 14, and the first branch channel 17 constitute a first guide path 200; the main channel 16, the second guide cavity 15, and the second branch channel 18 constitute a second guide path 300; a first sealing structure 6 is provided in the first guide cavity 14, and a second sealing structure 7 is provided in the second guide cavity 15, and the first sealing structure 6 and the second sealing structure 7 are connected; the passive magnet 2 is connected to the first sealing structure 6.

[0059] like Figure 7 and Figure 8As shown, the first flow guiding cavity 14 is located at one axial end of the valve body 1, and the second flow guiding cavity 15 is located at the other axial end of the valve body 1. The main channel 16, the first branch channel 17, and the second branch channel 18 all extend along the axial direction of the valve body 1. One end of the main channel 16 is connected to the first flow guiding cavity 14, and the other end is connected to the second flow guiding cavity 15. The main channel 16 is also connected to the main pipeline 91.

[0060] The first branch channel 17 and the second branch channel 18 are coaxially arranged, but they are not connected. One end of the first branch channel 17 is connected to the first guide cavity 14, and the other end is blocked. One end of the second branch channel 18 is connected to the second guide cavity 15, and the other end is blocked. In addition, the first branch channel 17 is also connected to the first branch pipe 92, and the second branch channel 18 is connected to the second branch pipe 93.

[0061] The first sealing structure 6 is slidably disposed within the first flow guiding cavity 14, used to seal the connection points between the first flow guiding cavity 14 and the main channel 16, and between the first flow guiding cavity 14 and the first branch channel 17; the second sealing structure 7 is slidably disposed within the second flow guiding cavity 15, used to seal the connection points between the second flow guiding cavity 15 and the main channel 16, and between the second flow guiding cavity 15 and the second branch channel 18. The first sealing structure 6 and the second sealing structure 7 are connected by a linkage structure 8 to ensure that they can operate simultaneously.

[0062] When valve body 1 switches from the first conducting state to the second conducting state, passive magnet 2 is attracted and pulls the first sealing structure 6 and the second sealing structure 7. The first sealing structure 6 moves away from the connection between the first flow guiding cavity 14 and the main channel 16 and the first flow guiding cavity 14 and the first branch channel 17. The second sealing structure 7 blocks the second flow guiding cavity 15. At this time, the hot fluid generated by the exothermic reaction of the solid elastic material enters from the main channel 16, passes through the first flow guiding cavity 14, and flows out from the first branch channel 17 to the heat exchanger.

[0063] When valve body 1 switches from the second conducting state to the first conducting state, passive magnet 2 disconnects from active magnet 4, passive magnet 2 returns to its original position, and simultaneously drives the first sealing structure 6 and the second sealing structure 7 to return to their original positions. The second sealing structure 7 moves away from the connection between the second flow guide cavity 15 and the main channel 16 and the second flow guide cavity 15 and the second branch channel 18. The first sealing structure 6 blocks the first flow guide cavity 14. At this time, the cold fluid generated by the heat absorption of the solid elastic material enters from the main channel 16, passes through the second flow guide cavity 15, and flows out from the second branch channel 18 to the cold heat exchanger.

[0064] In some embodiments, the valve body 1 described above may be as follows: Figure 2 , Figure 3 and Figure 4 The structure shown is described in the following document. Figure 2 , Figure 3and Figure 4 The valve body 1 includes a main body 11, a first fixed sleeve 12, and a second fixed sleeve 13. One end of the main body 11 is provided with a first cavity, and the other end is provided with a second cavity. The main body 11 is also provided with a main channel 16, a first branch channel 17, and a second branch channel 18. One end of the first fixed sleeve 12 is fixedly disposed in the first cavity, and the other end extends axially out of the first cavity. A partition 121 is provided inside the first fixed sleeve 12, which divides the inner cavity of the first fixed sleeve 12 into a delay cavity 100 and a third cavity. The third cavity and the first cavity form a first flow guiding cavity 14. One end of the second fixed sleeve 13 is fixedly disposed in the second cavity, and the other end extends axially out of the second cavity. The inner cavity of the second fixed sleeve 13 and the second cavity form a second flow guiding cavity 15.

[0065] If the valve body 1 is a single unit, its interior will contain a main channel 16, two branch channels, a first guide cavity 14, a second guide cavity 15, and a delay cavity 100. Since the first guide cavity 14, the second guide cavity 15, and the delay cavity 100 are distributed sequentially and alternately along the axial direction, all these flow channels and cavities are spatially intertwined. During processing, drilling and boring from different directions are required, resulting in complex processes, high tool costs, and a high likelihood of producing defective products.

[0066] In this embodiment, the valve body 1 is divided into three parts. The main body 11 focuses on machining the main channel 16, the first branch channel 17, and the second branch channel 18. These are straight holes or stepped holes along the axial direction, which are simple to machine. The first fixing sleeve 12, as an independent part, can be precision machined from bar stock to form the delay cavity 100 and the third cavity, as well as the internal partition 121. The second fixing sleeve 13 is also machined separately. By decomposing the most complex structure into several simple parts, each part can be mass-produced using economical and reliable processes, significantly reducing the machining difficulty and cost.

[0067] The critical motion coordination precision is concentrated in the delay cavity 100 of the first fixed sleeve 12. The first fixed sleeve 12 can be used as an independent precision module to complete the assembly and testing of all internal parts externally, and to check whether the sliding of its internal parts is smooth and whether the magnets are properly engaged. Only after ensuring that it is qualified is it installed into the main body 11. This avoids the risk of the entire valve body 1 being scrapped due to a problem with a small part. As independent cylindrical parts, the first fixed sleeve 12 and the second fixed sleeve 13, after being pressed into the cavity of the main body 11, can easily ensure their concentricity and perpendicularity with the flow channel of the main body 11, and are easy to maintain and replace. Preferably, the outer surface of the main body 11 has two mounting wings 111 for fixing the valve body 1 to the mounting object. The first fixing sleeve 12 is threadedly connected to the valve body 1, and the second fixing sleeve 13 is also threadedly connected to the valve body 1 to improve the sealing performance.

[0068] In some embodiments, the first sealing structure 6 and the second sealing structure 7 described above can be adopted as follows: Figure 3 and Figure 4 The structure shown is described in the following document. Figure 3 and Figure 4 The first sealing structure 6 includes a first sealing body 61 and a first elastic element 62. The first sealing body 61 is slidably disposed within the third cavity and connected to the passive magnet 2. The first elastic element 62 is axially disposed between the partition plate 121 and the first sealing body 61. The second sealing structure 7 includes a second sealing body 71 and a second elastic element 72. The second sealing body 71 is slidably disposed within the second fixed sleeve 13. The second sealing body 71 is connected to the first sealing body 61 via a linkage structure 8. The second elastic element 72 is axially disposed between the second sealing body 71 and the second fixed sleeve 13.

[0069] The first sealing body 61 is a direct actuating component that controls the opening and closing of the first flow guiding cavity 14. The end face of the first sealing body 61 directly contacts the port of the first branch channel 17, forming a hard seal or installing a soft seal, responsible for ultimately cutting off the hot fluid. Similarly, the second sealing body 71 is a direct actuating component that controls the opening and closing of the second flow guiding cavity 15. The end face of the second sealing body 71 directly contacts the port of the second branch channel 18, forming a hard seal or installing a soft seal, responsible for ultimately cutting off the cold fluid.

[0070] The first elastic element 62 is axially pre-tightened between the first sealing body 61 and the partition 121, and its elastic force direction always presses the first sealing body 61 against the port of the first branch channel 17, ensuring that the first sealing body 61 and the port of the first branch channel 17 are tightly abutted in the first conductive state. The second elastic element 72 is axially pre-tightened between the second sealing body 71 and the second fixed sleeve 13, and its elastic force direction always presses the second sealing body 71 against the port of the second branch channel 18, ensuring that the second sealing body 71 and the port of the second branch channel 18 are tightly abutted in the second conductive state.

[0071] It should be noted that the elastic strength of the second elastic element 72 is less than that of the first elastic element 62. In the first conductive state, the first elastic element 62 presses the first sealing body 61 against the port of the first branch channel 17. This pressing force is transmitted to the second sealing body 71 through the linkage structure 8, which allows the second sealing body 71 to further compress the second elastic element 72, thus storing energy in the second elastic element 72. In the second conductive state, the second elastic element 72 releases energy, ensuring that the second sealing body 71 is tightly abutted against the port of the second branch channel 18.

[0072] Specifically, the first sealing body 61 may include two parts. One part is a sliding body made of metal, which slides in conjunction with the first fixed sleeve 12. A groove is formed on the end face of the sliding body. The other part is an elastic seal, preferably made of rubber, which is elastic and embedded in the groove to abut against the port of the first branch channel 17 to form a soft seal, further improving the sealing performance between the first sealing structure 6 and the first guide chamber. The second sealing body 71 may adopt the same structure as the first sealing body 61.

[0073] Because the first sealing body 61 and the second sealing body 71 are connected by the linkage structure 8, the movement of the two sealing bodies is strictly synchronized. When switching between the first conducting state and the second conducting state, the linkage structure 8 drives the first sealing structure 6 and the second sealing structure 7 to move synchronously, forming an interlock to ensure that the two conducting paths cannot be in the conducting state at the same time.

[0074] The linkage structure 8 is installed inside the valve body 1, making full use of the space of the central axis of the valve body 1. All moving parts are built-in, making the external structure of the valve body 1 very simple. There are no additional moving parts or connecting parts, avoiding the risk of external interference, improving safety, and facilitating installation and packaging.

[0075] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A time-delayed on-state valve, characterized in that, include: The valve body (1) is provided with a time delay cavity (100) that is not interconnected, a first guide passage (200) and a second guide passage (300), the first guide passage (200) and the second guide passage (300) being connected to the solid-state spring-loaded refrigeration and heating device respectively; the valve body (1) has a first conduction state and a second conduction state. In the first conduction state, the first guide passage (200) is disconnected and the second guide passage (300) is connected to the solid-state spring-loaded refrigeration and heating device; in the second conduction state, the second guide passage (300) is disconnected and the first guide passage (200) is connected to the solid-state spring-loaded refrigeration and heating device. A passive magnet (2) is slidably disposed within the first conductive path (200); as well as The output mechanism (3) has one end slidably disposed in the delay cavity (100) and is connected to an active magnet (4). The other end is used to connect to the drive mechanism of the solid spring card cooling and heating device. The drive mechanism is used to drive the output mechanism (3) to move. When the active magnet (4) moves to engage with the passive magnet (2) under the drive of the output mechanism (3), the valve body (1) switches from the first conducting state to the second conducting state; when the active magnet (4) moves to disconnect from the passive magnet (2) under the drive of the output mechanism (3), the valve body (1) switches from the second conducting state to the first conducting state.

2. The time-delayed on-state valve as described in claim 1, characterized in that, The output mechanism (3) includes: The pressure rod (31) has one end located inside the delay cavity (100) and connected to the active magnet (4), and the other end extends out of the delay cavity (100); the pressure rod (31) is provided with a sliding groove (311); A slide rod (32) is slidably disposed within the slide groove (311), with one end extending out of the slide groove (311); and The power component (33) is connected to the extended end of the slide bar (32) via a locking component (34); the power component (33) is used to connect with the drive mechanism.

3. The time-delayed on-state valve as described in claim 2, characterized in that, A third elastic element (5) is connected between the pressure rod (31) and the active magnet (4).

4. The time-delayed on-state valve as described in claim 2 or 3, characterized in that, The output mechanism (3) also includes: A sliding sleeve (35) is slidably disposed inside the delay cavity (100); the active magnet (4) is fixed inside the sliding sleeve (35), and one end of the pressure rod (31) is slidably disposed inside the sliding sleeve (35); When the pressure rod (31) abuts against the end wall of the sliding sleeve (35), the pressure rod (31) drives the sliding sleeve (35) to slide within the delay cavity (100).

5. The time-delayed on-state valve as described in claim 4, characterized in that, One end of the sliding sleeve (35) extends out of the delay cavity (100) and expands radially outward to form a sliding cavity (351); a thrust block (36) that slides radially is provided inside the sliding cavity (351); the thrust block (36) is connected to a stop (37) that controls its sliding. When the pressure rod (31) and the sliding sleeve (35) extend out of the end wall of the delay cavity (100) and abut against each other, the pressure rod (31) drives the sliding sleeve (35) to slide towards the bottom wall of the delay cavity (100), so that the active magnet (4) moves to the bottom wall of the delay cavity (100) and attracts the passive magnet (2); After the pressure rod (31) passes through the thrust block (36) axially, the stop (37) drives the thrust block (36) to move radially toward the central axis of the sliding cavity (351) so that the thrust block (36) and the pressure rod (31) can form a limit in the axial direction; After the pressure rod (31) returns to its original position and abuts against the thrust block (36) axially, the pressure rod (31) drives the sliding sleeve (35) and the active magnet (4) to slide away from the bottom wall of the delay cavity (100) so that the active magnet (4) is disconnected from the passive magnet (2). When the sliding sleeve (35) returns to the preset position, the stop (37) drives the thrust block (36) to move radially away from the central axis of the sliding cavity (351), so that the pressure rod (31) passes through the thrust block (36) and returns to abut against the end wall of the delay cavity (100).

6. The time-delayed on-state valve as described in claim 5, characterized in that, The stop member (37) is fixedly connected to the outer wall of the valve body (1); the stop member (37) has a limiting part (371) that extends into the sliding cavity (351); the limiting part (371) has a first inclined surface (372), the thrust block (36) has a second inclined surface (361), and the first inclined surface (372) abuts against the second inclined surface (361).

7. The time-delayed on-state valve as described in claim 1, characterized in that, The valve body (1) is provided with a first flow guiding cavity (14), a second flow guiding cavity (15), a main channel (16), a first branch channel (17), and a second branch channel (18); the main channel (16), the first flow guiding cavity (14), and the first branch channel (17) constitute the first flow guiding path (200); the main channel (16), the second flow guiding cavity (15), and the second branch channel (18) constitute the second flow guiding path (300); The first flow guiding cavity (14) is provided with a first sealing structure (6), and the second flow guiding cavity (15) is provided with a second sealing structure (7). The first sealing structure (6) is connected to the second sealing structure (7); the passive magnet (2) is connected to the first sealing structure (6).

8. The time-delayed on-state valve as described in claim 7, characterized in that, The valve body (1) includes: The main body (11) has a first cavity at one end and a second cavity at the other end; the main body (11) also has the main channel (16), the first branch channel (17) and the second branch channel (18); A first fixed sleeve (12) has one end fixedly disposed within the first cavity and the other end extending axially out of the first cavity; the first fixed sleeve (12) is provided with a partition (121), which divides the inner cavity of the first fixed sleeve (12) into the delay cavity (100) and a third cavity, the third cavity and the first cavity forming the first flow guiding cavity (14); and The second fixed sleeve (13) is fixedly disposed at one end in the second cavity and extends axially out of the second cavity at the other end; the inner cavity of the second fixed sleeve (13) and the second cavity together form the second flow guiding cavity (15).

9. The time-delayed on-state valve as described in claim 8, characterized in that, The first sealing structure (6) includes: The first sealing body (61) is slidably disposed within the third cavity and connected to the passive magnet (2); and The first elastic element (62) is axially disposed between the partition (121) and the first sealing body (61).

10. The time-delayed on-state valve as described in claim 9, characterized in that, The second sealing structure (7) includes: The second sealing body (71) is slidably disposed within the second fixed sleeve (13); the second sealing body (71) is connected to the first sealing body (61) via a linkage structure (8); and The second elastic element (72) is axially disposed between the second sealing body (71) and the second fixed sleeve (13).

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