Connecting device for fluid system and heat exchange equipment

Abstract

The utility model relates to the field of water heaters, and provides a connecting device and heat exchange equipment for a fluid system, the heat exchange equipment comprises the connecting device, the connecting device comprises a base, a power piece, a valve core and a first potential energy piece, the power piece, the valve core and the first potential energy piece are sequentially in power connection, the first limiting part is arranged on the base, and the second limiting part is arranged on the valve core. Rotation of the power piece and flowing of fluid are driven by each other, a base channel is formed in the base, the first limiting part and the second limiting part are matched to enable the valve element to move relative to the base along a movement path, the valve element moves to the first position to partition the base channel and enable the first potential energy piece to store potential energy, and the first potential energy piece releases the potential energy to enable the valve element to move to the second position. Therefore, the base channel is communicated, and the power piece rotates. Power is provided through the fluid, potential energy is stored through the first potential energy piece, the valve element is driven to move to switch the communication state of the base channel, the fluid is driven to flow, an electromagnetic valve and a power source do not need to be arranged, cost is low, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to a connecting device and a heat exchange device for a fluid system. Background Art

[0002] Gas water heaters generally include a fluid system and a heat exchanger. The fluid system includes an inlet channel, a heat exchange channel, and an outlet channel that are connected in sequence. The heat exchange channel corresponds to the heat exchanger setting of the gas water heater. The inlet channel is connected to the inlet end, that is, connected to the tap water pipe, and the outlet channel is connected to the outlet end, that is, connected to the water valve at the user end. During the use of the gas water heater, the water valve is closed after being opened for a period of time. When the water valve is opened again in a short period of time, the outlet water temperature at the water valve will go through the following stages in sequence: slightly low temperature, very high temperature, very low temperature, and suitable temperature. The slightly low temperature stage is caused by the temperature of the residual hot water in the outlet channel slightly decreasing in a short period of time; the very high temperature stage is caused by the temperature rise when the water is stopped. When the gas water heater stops working, the residual smoke temperature in the heat exchanger will continue to heat the water in the heat exchange channel, making the water temperature in the heat exchange channel higher than the normal use temperature. This phenomenon is called interlayer hot water; the very low temperature stage is caused by the residual cold water in the channel entering the heat exchange channel when the gas water heater is turned on again. It cannot be heated to the target temperature. This phenomenon is called interlayer cold water. The presence of interlayer hot water and interlayer cold water will affect the user's use, and the interlayer hot water may even cause scalding to the user.

[0003] In the prior art, a bypass pipe is provided between the inlet channel and the outlet channel as a connecting channel, and a solenoid valve is provided to control the on / off of the bypass pipe. After the gas water heater is turned off, the solenoid valve is controlled to open the bypass pipe, and power is provided by a pump, so that water in the inlet channel, the heat exchange channel, the outlet channel, and the bypass pipe circulates, and the water flow path is switched according to the start and stop of the water heater, thereby avoiding interlayer hot water and interlayer cold water. The solenoid valve is used to control the on / off of the pipeline to switch the water flow path, which is costly, and the solenoid valve needs to be electrically connected, which is inconvenient to install. The pump is used to provide power to drive the water flow, which is costly, and the pump installation has specific installation requirements, resulting in inconvenience in installation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the gas water heater has high cost and is inconvenient to install, and to provide a connecting device and a heat exchange device for a fluid system.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A connecting device for a fluid system, comprising:

[0007] A base, defining a base channel and a receiving space communicating with an outer side of the base;

[0008] A power member is rotatably disposed in the accommodation space, wherein the rotation of the power member and the flow of the fluid drive each other;

[0009] A valve core is movably arranged relative to the base and connected to the power member;

[0010] A first limiting portion, arranged on the base;

[0011] a second limiting portion, arranged on the valve core, the first limiting portion and the second limiting portion cooperate with each other and are used to make the valve core move along a movement path, when the valve core is located at a first position on the movement path, the valve core blocks the base channel, and when the valve core is located at a second position on the movement path, the base channel is connected;

[0012] A first potential energy member, used for storing elastic potential energy or magnetic potential energy, one end of which is fixed on the base and the other end of which is connected to the valve core;

[0013] When the power member rotates, it can drive the valve core to move to the first position and cause the first potential energy member to store potential energy. When the first potential energy member releases potential energy, it can drive the valve core to move to the second position and cause the power member to rotate.

[0014] In this solution, the rotation of the power part and the flow of the fluid drive each other, that is, the flow of the fluid can drive the rotation of the power part, and the rotation of the power part can disturb the fluid to cause the fluid to flow; the power part is arranged in the accommodating space, and the accommodating space is connected to the outside of the base, so that the fluid can flow into the accommodating space to drive each other with the power part.

[0015] When the fluid flows into the accommodation space, it can drive the power member to rotate; the power rotation can drive the valve core to move to the first position, blocking the base channel; the valve core moves relative to the base so that one end of the first potential energy member moves relative to the other end to store potential energy. When one end of the first potential energy member moves relative to the other end to release potential energy, the first potential energy member drives the valve core to move to the second position, so that the base channel is connected, the movement of the valve core can drive the power member to rotate, and the rotation of the power member can disturb the fluid to make the fluid flow.

[0016] The power is provided by the fluid flow, and the power is transmitted to the first potential energy member through the power member for storage, and then the potential energy is released by the first potential energy member to switch the valve core position, thereby switching the connection state of the base channel. When the connecting device is applied to the fluid system, on the one hand, it can automatically operate to switch the fluid flow path without the need to set up an additional solenoid valve; on the other hand, the first potential energy member can automatically drive the fluid flow when releasing the potential energy, without the need to set up an additional power source such as a pump. There is no need to set up a solenoid valve or a power source, which has the advantages of low cost and easy installation.

[0017] When the connecting device is applied to the water heater to switch the water flow path according to the start and stop of the water heater and improve the interlayer cold water and interlayer hot water phenomenon, there is no need to set up a solenoid valve or a pump, which can reduce the cost of the water heater and make the water heater easy to install.

[0018] The first limiting part and the second limiting part cooperate with each other to make the valve core move relative to the base along the movement path. On the one hand, the stability of the valve core movement can be improved; on the other hand, the movement path of the valve core can be ensured to be consistent with the preset path, thereby improving reliability.

[0019] Preferably, the second limiting portion defines a limiting groove, and the first limiting portion is movably disposed in the limiting groove.

[0020] In this solution, the structure is simple, compact and reliable.

[0021] Preferably, the first potential energy member is an elastic member and is sleeved on the outer sides of the first limiting portion and the second limiting portion, and the second limiting portion is sleeved on the outer side of the first limiting portion;

[0022] And / or, an opening of the base channel is provided in the first limiting portion.

[0023] In this solution, the first potential energy member is sleeved on the outside of the first limiting portion and the second limiting portion, and the first limiting portion and the second limiting portion also play the role of constraining the first potential energy member so that the two ends of the first potential energy member can approach or move away from each other along the extension direction of the movement path of the valve core. The first potential energy member is sleeved on the outside of the first limiting portion and the second limiting portion, and the second limiting portion is sleeved on the outside of the first limiting portion, which can make the connection device compact.

[0024] The first limiting portion is provided with an opening of the base channel, which facilitates the communication between the base channel and the outside of the base, making the connecting device compact in structure.

[0025] Preferably, the valve core is arranged in the base channel, the base channel has a narrow opening corresponding to the first position, and the shape of the valve core matches the shape of the narrow opening;

[0026] The narrow mouth portion is trumpet-shaped, and the opening direction is consistent with the direction from the first position to the second position, and the valve core is arranged on the side of the narrow mouth portion with a larger opening.

[0027] In this solution, the valve core and the narrow mouth portion are matched to block the base channel at the first position, which is simple and reliable.

[0028] The valve core is arranged on the side with the larger opening of the trumpet-shaped narrow mouth, that is, on the side with the larger end of the narrow mouth; the opening direction of the narrow mouth is arranged to be consistent with the direction from the first position to the second position, so that when the valve core moves from the first position to the second position, it moves away from the narrow mouth to open the base channel, and when it moves from the second position to the first position, it moves close to the narrow mouth to block the base channel. Through the shape of the narrow mouth, the relative position of the narrow mouth and the valve core, the base channel can only be opened in one direction, and the valve core moves from the first position to the second position to open, which can improve the reliability of the connection and blockage of the base channel.

[0029] Preferably, the connecting device also includes a second potential energy member for storing elastic potential energy or magnetic potential energy, and the power member, the second potential energy member, the valve core, and the first potential energy member are dynamically connected in sequence. When the valve core moves from the first position to the second position, the second potential energy member switches from a potential energy storage state to a potential energy release state.

[0030] In this solution, the first potential energy member and the second potential energy member both store potential energy when the valve core moves to the first position. When the valve core moves from the first position to the second position, the second potential energy member and the first potential energy member both release potential energy, which can provide more energy for the fluid flow in the accommodating space, making the fluid flow more sufficient and further improving the interlayer cold water and interlayer hot water phenomenon.

[0031] Preferably, the valve core is movably arranged relative to the base, and the power member and the second potential energy member are connected via a rotation and linear conversion mechanism.

[0032] In this solution, the valve core is movably arranged, and the structure is simple and reliable.

[0033] Preferably, the second potential energy member, the valve core, and the first potential energy member are arranged in the base channel and are arranged in sequence along the extension direction of the motion path.

[0034] In this solution, the second potential energy member, the valve core, and the first potential energy member are arranged in the base channel. On the one hand, this makes the structure of the connecting device compact; on the other hand, it can improve the overall packaging of the connecting device, thereby protecting the first potential energy member, the second potential energy member, and the valve core, and avoiding damage to the first potential energy member, the second potential energy member, and the valve core during transportation or installation of the connecting device.

[0035] The second potential energy member, the valve core and the first potential energy member are arranged in sequence along the extension direction of the motion path. On the one hand, this makes the connection simple and the structure compact; on the other hand, it makes the force direction of the second potential energy member, the valve core and the first potential energy member consistent with the extension direction of the motion path of the valve core, thereby improving the force conditions of the second potential energy member, the valve core and the first potential energy member.

[0036] Preferably, one end of the flow path of the base channel is connected to the accommodating space, and the other end corresponds to the connection between the first potential energy member and the base.

[0037] In this solution, the base channel and the accommodating space are connected, so that the connecting device has a compact structure.

[0038] Preferably, a first connection port and a second connection port are defined on the base, and the accommodating space is connected to the outer side of the base through the first connection port and the second connection port.

[0039] In this solution, the accommodating space is connected to the outer side of the base through the first connecting port and the second connecting port. On the one hand, the wrapping property of the accommodating space for the power parts can be improved to avoid damage to the power parts in the accommodating space during the transportation or installation of the connecting device; on the other hand, the overall packaging of the connecting device can be improved; on the third hand, by setting the size standards of the first connecting port and the second connecting port, it is also convenient to achieve standardization of the connecting device.

[0040] A heat exchange device, comprising a heat exchanger and a fluid system, wherein the fluid system comprises an inlet channel, a heat exchange channel and an outlet channel which are connected in sequence, the heat exchanger is arranged at the heat exchange channel, and the heat exchange device also comprises the above-mentioned connecting device for the fluid system, one end of the base channel flow path is connected to the inlet channel, and the other end is connected to the outlet channel, and the accommodating space is connected to the inlet channel or the outlet channel.

[0041] In this solution, when the heat exchange equipment is started, the fluid flows into the containing space, driving the power part to rotate, so that the valve core moves to the first position to block the base channel, preventing the fluid entering the channel from entering the delivery channel, thereby ensuring the normal operation of the heat exchange equipment; and the valve core drives one end of the first potential energy part to move so that the first potential energy part stores potential energy.

[0042] When the heat exchange device is closed, the fluid in the fluid system stops flowing, and the first potential energy member releases potential energy to drive the valve core to move to the second position, so that the base channel is connected, thereby connecting the inlet channel and the outlet channel, so that the inlet channel, the heat exchange channel, the outlet channel, and the base channel form a circulation path for the fluid; and the valve core drives the power member to rotate, and the power member drives the fluid to flow on the circulation path, which can improve the phenomenon of overheating or overcooling of the outflowing fluid after the heat exchange device is briefly closed and then reopened.

[0043] The positive and progressive effects of the utility model are:

[0044] The first limiting part and the second limiting part cooperate with each other to make the valve core move relative to the base along the movement path. On the one hand, the stability of the valve core movement can be improved; on the other hand, the movement path of the valve core can be ensured to be consistent with the preset path, thereby improving reliability.

[0045] The power is provided by the fluid flow, and the power is transmitted to the first potential energy member through the power member for storage, and then the potential energy is released by the first potential energy member to switch the valve core position, thereby switching the connection state of the base channel. When the connecting device is applied to the fluid system, on the one hand, it can automatically operate to switch the fluid flow path without the need to set up an additional solenoid valve; on the other hand, the first potential energy member can automatically drive the fluid flow when releasing the potential energy, without the need to set up an additional power source such as a pump. There is no need to set up a solenoid valve or a power source, which has the advantages of low cost and easy installation.

[0046] When the connecting device is applied to heat exchange equipment such as water heaters to switch the fluid flow path according to the start and stop of the heat exchange equipment, and to improve the phenomenon of overheating or overcooling of the outflowing fluid after the heat exchange equipment is briefly closed and then reopened, there is no need to set up solenoid valves, pumps, etc., which can reduce the cost of the heat exchange equipment and make installation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic structural diagram of a heat exchange device according to an embodiment of the utility model;

[0048] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0049] Figure 3 This is a partial structural schematic diagram of a connecting device according to an embodiment of the utility model;

[0050] Figure 4 This is a partial structural schematic diagram of a connecting device according to an embodiment of the utility model;

[0051] Figure 5 This is a structural schematic diagram of the connection device when the valve core is located at the first position according to an embodiment of the utility model;

[0052] Figure 6 It is a structural schematic diagram of the connecting device when the valve core is located at the second position according to an embodiment of the utility model.

[0053] Description of reference numerals:

[0054] Heat exchange equipment 10000;

[0055] Connecting device 1;

[0056] Base 11, first connection port 111, second connection port 112, third connection port 113, base channel 114, narrow mouth portion 1141, accommodating space 115;

[0057] Power member 12;

[0058] Rotation and linear conversion mechanism 13, first transmission member 131, second transmission member 132;

[0059] Valve core 14;

[0060] A first potential energy member 15;

[0061] The second potential energy member 16, the first pair of magnets 161, the second pair of magnets 162, and the anti-rotation rod 163;

[0062] A first limiting portion 17;

[0063] The second limiting portion 18 and the limiting groove 181;

[0064] Fluid system 2, inlet channel 21, outlet channel 22, heat exchange channel 23;

[0065] Heat exchanger 3;

[0066] An inlet end 41, an outlet end 42, and an air inlet end 43;

[0067] Gas distribution system 51, combustion chamber 52, smoke collection hood 53, controller 54, and fan 55. DETAILED DESCRIPTION

[0068] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0069] It should be noted that:

[0070] Unless otherwise specified, one end or the other end of a structure such as a pipe or channel representing a flow path refers to one end or the other end on the flow path;

[0071] Unless otherwise specified, the movement path refers to the movement path of the valve core;

[0072] Figure 1 In the perspective shown, the heat exchange channel is covered and cannot be seen, and the approximate position of the heat exchange channel is indicated by a dotted line.

[0073] Movement includes two types: rotation and translation.

[0074] Figure 1-Figure 6 This is a schematic diagram of the structure provided for this embodiment.

[0075] like Figure 1 , Figure 2 As shown, the heat exchange device 10000 provided in this embodiment includes a heat exchanger 3, a fluid system 2 and a connecting device 1. The fluid system 2 includes an inlet channel 21, a heat exchange channel 23 and an outlet channel 22 which are connected in sequence. The heat exchanger 3 is arranged at the heat exchange channel 23.

[0076] like Figure 3-Figure 6 As shown, the connecting device 1 comprises:

[0077] The base 11 defines a base passage 114 and a receiving space 115 communicating with the outer side of the base 11;

[0078] The power member 12 is rotatably disposed in the accommodating space 115. The rotation of the power member 12 and the flow of the fluid drive each other. That is, the flow of the fluid into the accommodating space 115 can drive the power member 12 to rotate. The rotation of the power member 12 can disturb the fluid in the accommodating space 115 to make the fluid flow. The accommodating space 115 is connected to the outside of the base 11, so that the fluid can flow into the accommodating space 115 to drive each other with the power member 12.

[0079] The valve core 14 is movably arranged relative to the base 11 and connected to the power member 12;

[0080] A first limiting portion 17, disposed on the base 11;

[0081] The second limiting portion 18 is arranged on the valve core 14. The first limiting portion 17 and the second limiting portion 18 cooperate with each other and are used to make the valve core 14 move along the movement path. On the one hand, the stability of the movement of the valve core 14 can be improved; on the other hand, the movement path of the valve core 14 can be ensured to be consistent with the preset path, thereby improving reliability. Specifically, when the valve core 14 is located at the first position on the movement path, the valve core 14 blocks the base channel 114; when the valve core 14 is located at the second position on the movement path, the base channel 114 is connected;

[0082] The first potential energy member 15 is used to store elastic potential energy, one end of which is fixed on the base 11 and the other end of which is connected to the valve core 14 .

[0083] When the fluid flows to the accommodation space 115, the power member 12 can be driven to rotate; the power rotation can drive the valve core 14 to move to the first position, blocking the base channel 114; the valve core 14 moves relative to the base 11 so that the end of the first potential energy member 15 connected to the valve core 14 moves relative to the other end to store potential energy. When the end of the first potential energy member 15 connected to the valve core 14 moves relative to the other end to release potential energy, the first potential energy member 15 drives the valve core 14 to move to the second position, so that the base channel 114 is connected, the movement of the valve core 14 can drive the power member 12 to rotate, and the rotation of the power member 12 can disturb the fluid to make the fluid flow.

[0084] The fluid flow is used to provide power, and the power is transmitted to the first potential energy member 15 through the power member 12 for storage. The potential energy is then released through the first potential energy member 15 to switch the position of the valve core 14, thereby switching the connection state of the base channel 114.

[0085] When the connecting device 1 is applied to the fluid system 2, on the one hand, the fluid flow path can be switched automatically by changing the connection state of the base channel 114, without the need to additionally set up an electromagnetic valve; on the other hand, the first potential energy member 15 can automatically drive the fluid flow when releasing potential energy, without the need to additionally set up a power source such as a pump.

[0086] like Figure 2 , Figure 3 As shown, the connection device 1 is installed in the heat exchange device 10000 in detail as follows: one end of the base channel 114 on the flow path is connected to the inlet channel 21, the other end is connected to the outlet channel 22, and the accommodating space 115 is connected to the inlet channel 21.

[0087] The heat exchange device 10000 in this embodiment is specifically a gas water heater. The specific working principle of the connection device 1 applied to the gas water heater to improve the interlayer cold water and interlayer hot water is as follows:

[0088] When the user uses hot water, the water valve connected to the outlet end 42 is opened, and the heat exchange device 10000 starts to heat. At this time, the inlet end 41, the entry channel 21, the heat exchange channel 23, the delivery channel 22, and the outlet end 42 are connected in sequence to form a delivery path. The fluid flows along the delivery path, flows in from the inlet end 41, and flows out from the outlet end 42 to provide hot water. At this time, the fluid from the inlet end 41 flows to the accommodating space 115, driving the power member 12 to rotate, so that the valve core 14 moves to the first position, so that the base channel 114 is blocked, and the entry channel 21 and the delivery channel 22 are prevented from being connected through the base channel 114 without passing through the heating channel, thereby preventing the base channel 114 from affecting the normal use of the heat exchange device 10000. In the process of the valve core 14 moving to the first position, one end of the first potential energy member 15 is driven to move to store potential energy.

[0089] After the user closes the water valve, the heat exchange device 10000 stops heating, the inlet end 41 and the outlet end 42 are in a cut-off state, the first potential energy member 15 releases potential energy, drives the valve core 14 to move to the second position, and connects the base channel 114. At this time, the inlet channel 21, the heat exchange channel 23, the delivery channel 22, and the base channel 114 are connected in sequence to form a circulation path; the power member 12 is driven to rotate during the movement of the valve core 14 to the second position, so that the power member 12 disturbs the fluid so that the fluid flows on the circulation path to improve the interlayer cold water and interlayer hot water phenomenon. After the water valve is closed, the energy of the movement of the valve core 14, the rotation of the power member 12, and the flow of the fluid actually comes from the kinetic potential energy of the fluid flow when the water valve is opened.

[0090] By utilizing fluid flow to provide power, the connection state of the base channel 114 is automatically switched without the need for an additional solenoid valve, which can reduce the cost of the gas water heater and facilitate the installation of the gas water heater. By utilizing fluid flow to provide power, the fluid flow is automatically achieved after the user closes the water valve, without the need for a power source such as a pump, which can further reduce the cost of the gas water heater and facilitate the installation of the gas water heater.

[0091] In other embodiments, the accommodating space 115 may be provided to communicate with the inlet channel 21 or the outlet channel 22. During the use of the fluid system 2, there is flow loss in the process of the fluid flowing from the inlet channel 21 to the outlet channel 22, and the kinetic potential energy of the fluid in the inlet channel 21 is relatively large. In this embodiment, the power member 12 is provided corresponding to the inlet channel 21, so that the power provided by the fluid flow in the fluid system 2 to the power member 12 is stronger, so as to increase the potential energy that can be stored in the first potential energy member 15, so that the first potential energy member 15 provides more power when releasing the potential energy. When the connecting device 1 is used in the heat exchange equipment 10000, the fluid can flow more fully and the temperature is more balanced on the circulation path formed by the base channel 114, the inlet channel 21, the heat exchange channel 23, and the outlet channel 22, and the effect of avoiding overheating or overcooling of the fluid temperature is further improved.

[0092] In this embodiment, the power member 12 is a rotating blade assembly. When the fluid flows through the rotating blade assembly, there is a gap between the blades for the fluid to flow through. When the fluid flows through the blades, the fluid pressure acts on the blades, thereby driving the rotating blade assembly to rotate. In other embodiments, the power member 12 can be a structure such as a rotating blade assembly that can be driven by the fluid to rotate and can drive the fluid to flow when rotating.

[0093] Further, such as Figure 1 As shown, the heat exchange device 10000 also includes:

[0094] The gas inlet end 43 is used to communicate with the gas pipeline to supply the gas into the heat exchange device 10000;

[0095] A gas distribution system 51 for distributing the gas entering the combustion chamber 52;

[0096] The combustion chamber 52 is used for burning fuel gas therein; the smoke generated in the combustion chamber 52 reaches the heat exchanger 3, and performs heat exchange in the heat exchanger 3 and the fluid in the heat exchange channel 23;

[0097] A smoke collecting hood 53, used for collecting smoke;

[0098] A fan 55 is used for blowing air to provide air for the gas to burn;

[0099] The controller 54 is used to control the intake of gas, the blowing of the fan 55 and the like.

[0100] In this embodiment, the fluid is a water flow, the fluid system 2 is a water flow system, and the heat exchange device 10000 is a gas water heater. In other embodiments, the fluid can be a liquid or gaseous substance that can flow. When the fluid is liquid, the heat exchange device 10000 can be a water heater or other equipment with a heat exchanger 3 and a heat exchange function; the water heater can be a gas water heater, an electric water heater, etc.; the electric water heater is, for example, an electric water heater with a rapid heating function, and the heat exchanger 3 is used to heat the water flow in the rapid heating pipe. When the fluid is in a gaseous state, the heat exchange device 10000 can be a warm air device or other equipment with a heat exchanger 3 and a heat exchange function. In other embodiments, the connecting device 1 can also be used in other equipment with a fluid system 2. When the fluid system 2 stops being used, the fluid in the fluid system 2 is made to flow to avoid the deposition of substances in the fluid.

[0101] Optional, such as Figure 4 As shown, the second limiting portion 18 defines a limiting groove 181; Figure 5-Figure 6 As shown, the first limiting portion 17 is movably disposed in the limiting groove 181 .

[0102] Optional, such as Figure 5 , Figure 6 As shown, this embodiment includes the first design point: the first potential energy member 15 is an elastic member, and is sleeved on the outside of the first limit portion 17 and the second limit portion 18, and the second limit portion 18 is sleeved on the outside of the first limit portion 17. The first potential energy member 15 is sleeved on the outside of the first limit portion 17 and the second limit portion 18, and the first limit portion 17 and the second limit portion 18 also play the role of constraining the first potential energy member 15 so that the first potential energy member 15 can be deformed along the extension direction of the movement path of the valve core 14. The first potential energy member 15 is sleeved on the outside of the first limit portion 17 and the second limit portion 18, and the second limit portion 18 is sleeved on the outside of the first limit portion 17, which can make the connecting device 1 compact.

[0103] Optional, such as Figure 3 , Figure 6 As shown, this embodiment includes the second design point: an opening of the base channel 114 is provided in the first limiting portion 17, so that the base channel 114 is connected to the outside of the base 11, making the connection device 1 compact. The opening is used as the third connection port 113 on the base 11 to communicate with the delivery channel 22. In other embodiments, when the power member 12 is provided corresponding to the delivery channel 22, the third connection port 113 is used to communicate with the entry channel 21.

[0104] Optionally, in other embodiments, two or either one of the design points one and two may be included simultaneously.

[0105] In this embodiment, the first limit portion 17 and the second limit portion 18 are sleeved to constrain each other's movement, thereby constraining the movement of the valve core 14 connected thereto relative to the base 11. In other embodiments, the first limit portion 17 and the second limit portion 18 can be configured as a structure such as a slider rail mechanism that can constrain movement and improve stability.

[0106] Optional, such as Figure 5 , Figure 6 As shown, the valve core 14 is arranged in the base channel 114, so that the connecting device 1 has a compact structure. The valve core 14 moves in the base channel 114, and the movement path of the valve core 14 is along the extension direction of the base channel 114. In this embodiment, the movement path L of the valve core 14 is shown in FIG. Figure 3 .

[0107] In other embodiments, the valve core 14 may be disposed outside the base channel 114 , and cooperate with the opening of the base channel 114 to open or block the base channel 114 .

[0108] Further, such as Figure 3 As shown, the base channel 114 has a narrow mouth portion 1141 corresponding to the first position, and the shape of the valve core 14 matches the shape of the narrow mouth portion 1141. The base channel 114 is blocked at the first position by matching the shape of the valve core 14 and the narrow mouth portion 1141, which is simple and reliable. In other embodiments, the narrow mouth portion 1141 may not be provided.

[0109] Further, such as Figure 3 , Figure 5 , Figure 6 As shown, the narrow mouth portion 1141 is trumpet-shaped, and the opening direction is consistent with the direction from the first position to the second position. The valve core 14 is arranged on the side with a larger opening of the narrow mouth portion 1141, so that the base channel 114 can only be opened in one direction. By moving the valve core 14 from the first position toward the second position to open, the reliability of the connection and isolation of the base channel 114 can be improved.

[0110] Optional, such as Figure 5 , Figure 6 As shown, the connection device 1 also includes a second potential energy member 16 for storing magnetic potential energy. Specifically, as Figure 5 , Figure 6 As shown, the second potential energy member 16 is a magnetic assembly, including a first pair of magnets 161, a second pair of magnets 162 and an anti-rotation rod 163 arranged in a magnetically mutually repelling manner. The two pairs of magnets are sleeved on the anti-rotation rod 163 so that the two pairs of magnets cannot rotate relative to each other but can only move relative to each other.

[0111] Optionally, the valve core 14 is movably arranged relative to the base 11, and the power member 12 and the second potential energy member 16 are connected via the rotation and linear conversion mechanism 13. In this embodiment, the rotation and linear conversion mechanism 13 includes a first transmission member 131 and a second transmission member 132, and the internal thread on the first transmission member 131 is engaged with the external thread on the second transmission member 132. The first pair of magnets 161 is fixedly connected to the valve core 14, the second pair of magnets 162 is fixedly connected to the second transmission member 132, and the anti-rotation rod 163 is connected to the valve core 14, the first potential energy member 15 and the base 11 and cannot rotate, so that the second transmission member 132 connected to the first pair of magnets 161 cannot rotate and can only move.

[0112] When the fluid flow in the accommodating space 115 drives the power member 12 to rotate, the power member 12 drives the first transmission member 131 to rotate, and the first transmission member 131 drives the second transmission member 132 to move, so that the second pair of magnets 162 moves toward the direction of the first pair of magnets 161, and drives the valve core 14 to move to the first position toward the narrow mouth 1141. In this process, the first potential energy member 15 is compressed to store potential energy, and the distance between the second pair of magnets 162 and the first pair of magnets 161 is shortened to store potential energy. The first potential energy member 15 and the second potential energy member 16 both store potential energy during the movement of the valve core 14 to the first position. When the valve core 14 moves from the first position to the second position, the second potential energy member 16 and the first potential energy member 15 both release potential energy, which can provide more energy for the flow of fluid in the accommodating space 115, so that the fluid flows more fully, and further improves the phenomenon of interlayer cold water and interlayer hot water.

[0113] Optional, such as Figure 5 , Figure 6 As shown, the second potential energy member 16, the valve core 14, and the first potential energy member 15 are arranged in the base channel 114; on the one hand, the structure of the connecting device 1 is compact; on the other hand, the packaging of the connecting device 1 as a whole can be improved, and the first potential energy member 15, the second potential energy member 16, and the valve core 14 can be protected to avoid damage to the first potential energy member 15, the second potential energy member 16, and the valve core 14 during transportation or installation of the connecting device 1. In other embodiments, the first potential energy member 15 and the second potential energy member 16 can extend out of the base channel 114, with a part located in the base channel 114 and the other part located outside the base channel 114; in other embodiments, the first potential energy member 15 and the second potential energy member 16 can be arranged outside the base channel 114; when the valve core 14 is arranged in the base channel 114, the first potential energy member 15 and the second potential energy member 16 can be connected to the valve core 14 through an adapter, or the valve core 14 can be partially extended out of the base channel 114 to connect with the first potential energy member 15 and the second potential energy member 16.

[0114] Furthermore, the second potential energy member 16, the valve core 14, and the first potential energy member 15 are sequentially arranged along the extension direction of the motion path, which, on the one hand, makes the connection simple and the structure compact; on the other hand, makes the force direction of the second potential energy member 16, the valve core 14, and the first potential energy member 15 consistent with the extension direction of the motion path of the valve core 14, thereby improving the force conditions of the second potential energy member 16, the valve core 14, and the first potential energy member 15. In other embodiments, the power member 12 and the first potential energy member 15 may be arranged away from the extension direction of the motion path.

[0115] In this embodiment, the first potential energy member 15 is a spring, and the second potential energy member 16 is a magnetic element including a magnet. In other embodiments, the first potential energy member 15 and the second potential energy member 16 can be both elastic elements such as springs, or both magnetic elements, or one can be an elastic element and the other can be a magnetic element.

[0116] In other embodiments, when the second potential energy member 16 is not provided, the rotation and linear conversion mechanism 13 can directly connect the power member 12 and the valve core 14. In other embodiments, the rotation and linear conversion mechanism 13 can adopt a mechanism capable of realizing rotation and linear conversion, such as a screw nut mechanism, a gear rack mechanism, a cam mechanism, etc., to convert the rotational motion of the power member 12 into the movement of the valve core 14.

[0117] In other embodiments, the power member 12 and the valve core 14 may be connected in a power connection so that both the power member 12 and the valve core 14 perform rotational motion, and accordingly, the base channel 114 is configured to be a rotary type, and the valve core 14 rotates to switch the connection state of the base channel 114. Accordingly, the telescopic direction of the first potential energy member 15 and the second potential energy member 16 may be configured to be curved to coordinate with the extension direction of the motion path of the valve core 14.

[0118] Optional, such as Figure 3 , Figure 5 As shown, one end of the flow path of the base channel 114 is connected to the accommodating space 115, and the other end corresponds to the connection between the first potential energy member 15 and the base 11, so that the connection device 1 has a compact structure. In other embodiments, the accommodating space 115 of the connection device 1 and the base channel 114 may not be connected.

[0119] Optional, such as Figure 3As shown, a first connection port 111 and a second connection port 112 are defined on the base 11, and the accommodating space 115 is connected to the outer side of the base 11 through the first connection port 111 and the second connection port 112, which can improve the wrapping of the accommodating space 115 for the power part 12, and avoid damage to the power part 12 in the accommodating space 115 during the transportation or installation of the connecting device 1; secondly, the overall packaging of the connecting device 1 can be improved; thirdly, by setting the size standards of the first connection port 111 and the second connection port 112, it is also convenient to achieve standardization of the connecting device 1.

[0120] In other embodiments, the first connection port 111 and the second connection port 112 may not be provided, and the accommodating space 115 may be an opening on the base 11. By providing the opening in the entrance channel 21 or the delivery channel 22, the accommodating space 115 and the entrance channel 21 or the delivery channel 22 are connected to achieve mutual drive between the power part 12 and the fluid.

[0121] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A connection device for a fluid system, It is characterized in that It includes: A base, defining a base channel and a receiving space communicating with an outer side of the base; A power member is rotatably disposed in the accommodation space, wherein the rotation of the power member and the flow of the fluid drive each other; A valve core is movably arranged relative to the base and connected to the power member; A first limiting portion, arranged on the base; a second limiting portion, arranged on the valve core, the first limiting portion and the second limiting portion cooperate with each other and are used to make the valve core move along a movement path, when the valve core is located at a first position on the movement path, the valve core blocks the base channel, and when the valve core is located at a second position on the movement path, the base channel is connected; A first potential energy member, used for storing elastic potential energy or magnetic potential energy, one end of which is fixed on the base and the other end of which is connected to the valve core; When the power member rotates, it can drive the valve core to move to the first position and cause the first potential energy member to store potential energy. When the first potential energy member releases potential energy, it can drive the valve core to move to the second position and cause the power member to rotate.

2. The connecting device for a fluid system according to claim 1, It is characterized in that The second limiting portion defines a limiting groove, and the first limiting portion is movably disposed in the limiting groove.

3. The connecting device for a fluid system according to claim 1, It is characterized in that The first potential energy member is an elastic member and is sleeved on the outer sides of the first limiting portion and the second limiting portion, and the second limiting portion is sleeved on the outer side of the first limiting portion; And / or, an opening of the base channel is provided in the first limiting portion.

4. The connecting device for a fluid system according to claim 1, It is characterized in that The valve core is arranged in the base channel, the base channel has a narrow opening corresponding to the first position, and the shape of the valve core matches the shape of the narrow opening; The narrow mouth portion is trumpet-shaped, and the opening direction is consistent with the direction from the first position to the second position, and the valve core is arranged on the side of the narrow mouth portion with a larger opening.

5. The connecting device for a fluid system according to claim 1, It is characterized in that The connecting device also includes a second potential energy member for storing elastic potential energy or magnetic potential energy. The power member, the second potential energy member, the valve core, and the first potential energy member are dynamically connected in sequence. When the valve core moves from the first position to the second position, the second potential energy member switches from a potential energy storage state to a potential energy release state.

6. The connection device for a fluid system according to claim 5, It is characterized in that The valve core is movably arranged relative to the base, and the power member and the second potential energy member are connected via a rotation and linear conversion mechanism.

7. The connection device for a fluid system according to claim 5, It is characterized in that The second potential energy member, the valve core, and the first potential energy member are arranged in the base channel and are arranged in sequence along the extension direction of the motion path.

8. The connecting device for a fluid system according to claim 1, It is characterized in that One end of the flow path of the base channel is connected to the accommodating space, and the other end corresponds to the connection between the first potential energy member and the base.

9. The connecting device for a fluid system according to claim 1, It is characterized in that The base is defined with a first connection port and a second connection port, and the accommodation space is communicated with the outer side of the base through the first connection port and the second connection port.

10. A heat exchange device, comprising a heat exchanger and a fluid system, wherein the fluid system comprises an inlet channel, a heat exchange channel and an outlet channel connected in sequence, and the heat exchanger is arranged at the heat exchange channel. It is characterized in that The heat exchange equipment also includes a connecting device for a fluid system as described in any one of claims 1 to 9, one end of the base channel flow path is connected to the inlet channel, and the other end is connected to the outlet channel, and the accommodating space is connected to the inlet channel or the outlet channel.

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