TWM579260U - Air conditioning system and flow valve - Google Patents

Abstract

The present invention relates to a flow valve comprising a valve body and a drive module. The drive module is mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate. The transmission assembly includes a calibration component having a pair of touch switches and a cam coupled to the drive module, the cam having a protrusion and the protrusion being configured to be movable between the pair of touch switches .

Description

Heating and cooling air conditioning system and flow valve

This creation relates to a flow valve for a central air conditioning system, and more particularly to a flow valve having a self-calibrating capability.

The air conditioning system generally mainly includes a window type air conditioner, a separate air conditioner and a central air conditioning system, wherein the window type machine and the separate type air conditioner are single unit systems, and the central air conditioning system is mainly composed of an ice water machine, an air conditioner box, and a coil unit. It consists of a fan and a transfer line. The central air conditioning system uses ice water or hot water to achieve the purpose of environmental conditions adjustment, including temperature, humidity and convection modulation to meet indoor comfort or work needs. A typical central air conditioning system may include an ice water or hot water main unit, one or more coil fans (or air supply coils) disposed on the heat load, and a cooling water tower. The ice water host has a condenser connected via a compressor and an evaporator, the condenser is coupled to the cooling water tower for heat dissipation, and the evaporator is coupled to the heat load for absorbing heat, compressing The machine is responsible for compressing the refrigerant to achieve the purpose of heat exchange between the condenser and the evaporator. The hot water host operates in the opposite direction to the ice water host.

One or more flow valves may be connected to the water outlet of the ice water or hot water main unit and the coil fan or the outlet end of the coil fan to control the flow of ice water for temperature control purposes. The control method of the conventional coil fan or the air supply coil is mostly to maintain the set temperature in the room by the flow rate of ice water or hot water, and the flow rate is mostly controlled by a three-way solenoid valve or a two-way solenoid valve. For example, when the temperature in the house reaches the set temperature, the two-way valve is immediately closed, and the three-way solenoid valve bypasses the ice water or hot water directly from the inlet end to the return end to achieve the effect of adjusting the internal temperature. . However, these methods consume a large amount of ice water and hot water, and also cause considerable noise and water hammer problems.

Therefore, in order to further enhance the effect of energy saving, it is necessary to develop an improved flow control valve, especially a flow valve capable of reducing control error.

The purpose of the present invention is to provide a flow valve comprising: a valve body for controlling a flow rate; a drive module mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate; a control circuit for Driving the drive module. The transmission assembly includes: a calibration component comprising a pair of touch switches and a cam coupled to the drive module, the cam having a protrusion and the protrusion being configured to be movable between the pair of touch switches . The pair of touch switches transmit a touch signal to the control circuit due to the touch of the protruding portion, and the control circuit stops the driving module based on the touch signal.

In a specific embodiment, the transmission assembly further includes a connector that connects the cam of the calibration assembly to the valve body.

In one embodiment, the pair of touch switches have a first touch switch in a first position and a second touch switch in a second position, and the protrusion of the cam is in the first Moving between a position and the second position.

In one embodiment, the first touch switch and the second touch switch each have a resilient mechanism.

In a specific embodiment, the first position and the second position determine a rotatable range of the cam.

In a specific embodiment, the cam has a rotatable range of ninety degrees.

In a specific embodiment, the connector is coupled to the cam by an engagement means.

A further object of the present invention is to provide a heating and cooling air conditioning system comprising: a main machine providing circulating ice water and warm water; a load connected to the main body to receive the ice water and warm water; and a flow valve disposed at The load is used to adjust the ice water or warm water flow of the load. The flow valve comprises: a body having a first-class track; a valve body rotatably received in the flow channel; a temperature detector configured to read temperature information about the body; and a drive module via A transmission assembly is mechanically coupled to the valve body to drive the valve body to rotate. The drive assembly includes a pair of touch switches and a cam, the cam is coupled to the drive module, and the cam has a protrusion, the protrusion being configured to be movable between the pair of touch switches; The control circuit receives the detection signal by the temperature detector and is communicatively coupled to the driving module, so that the driving module drives the valve body to rotate, and adjusts the convexity of the cam according to the detecting signal A position relative to the pair of touch switches. The position of the cam between the pair of touch switches determines a position of the valve body, and the position of the valve body determines the flow rate.

A further object of the present invention is to provide a flow valve comprising: a body having a first-class track; a valve body rotatably received in the flow path; and a temperature detector configured to read the temperature of the body The driving module is mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate. The transmission assembly includes a pair of touch switches and a cam, and the cam is coupled to the driving module. And the cam has a protruding portion configured to be movable between the pair of touch switches; and a control circuit for receiving a detection signal by the temperature detector and communicatively connecting to the The driving module drives the driving module to rotate the valve body, and adjusts a position of the protruding portion of the cam relative to the pair of touch switches according to the detecting signal.

Still another object of the present invention is to provide a flow valve comprising: a valve body for controlling a flow rate; a drive module mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate, and the transmission The module includes a pair of touch switches and a cam coupled to the driving module, the cam has a protrusion and the protrusion is configured to be movable between the pair of touch switches; and a control circuit Receiving a detection signal and communicating to the driving module, the driving module drives the valve body to rotate, and according to the detecting signal, the protruding portion touches the pair of touch switches to transmit a touch Touching the signal to the control circuit, the control circuit returns the protrusion to a predetermined starting position based on the touch signal, and starts to adjust the protrusion of the cam by the preset starting position a preset position of the pair of touch switches. That is to say, in addition to rotating the cam to the preset starting position of the valve body calibration, the control circuit can further rotate the cam to a preset position according to the user's request, so that the valve body is calibrated to maintain a desired flow rate.

In the following detailed description of various exemplary embodiments, reference is made to the accompanying drawings, which form a part of the present invention. The embodiments are shown by way of example, and the specific embodiments described herein can be implemented by the example. The details are provided to enable a person skilled in the art to practice the described embodiments. It is understood that other embodiments may be utilized and other changes may be made without departing from the spirit and scope. In addition, although this may be the case, reference to "a particular embodiment" does not require a particular embodiment of the same or singular. Therefore, the following detailed description is not to be taken in a limiting

In the context of the overall application and the scope of the patent application, the following terms have the meanings explicitly associated with this unless the context clearly dictates otherwise. As used herein, the <RTI ID=0.0>"or" </ RTI> </ RTI> is used to include an "or" usage and is equivalent to the term "and/or" unless specifically stated otherwise. The term "subject" is not exclusive and expressly relies on the majority of other factors not recited, unless the context clearly dictates otherwise. In addition, in the overall application, the meaning of "one", "one" and "the" includes plural references. The meaning of "in" includes "in" and "in".

A brief summary of these innovative topics is provided below to provide a basic understanding of certain aspects. This short narrative is not expected as a complete overview. This short description is not intended to identify primary or critical elements, or to depict or limit the range. Its purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

The first figure is a creative flow valve comprising a housing (100) and a body (200) partially covered by the housing (100). The body (200) has a first-class track, and its two ends can be respectively connected with corresponding connectors to install the inventive flow valve to a pipeline system with a specific purpose, such as a central air-conditioning pipeline system. The body (200) may be a structure extending in a single direction or may be a structure of another form. The body (200) is the position of flow control. A flow adjustment means is typically provided within the body (200) to thereby control the amount of water flowing into or out of the flow valve.

The second figure is an exploded view according to the first figure, showing other components wrapped in the outer casing (100), including a driving module (110), a calibration component (120), a connector (130), and a A temperature detector (140) and a control circuit (150). The outer casing (100) is a combination of an upper casing (101) and a lower casing (102), and the inner side of the upper/lower casings (101, 102) can be provided with a complicated limiting structure to support or position the front component. In addition, other support members may be provided in the housing, such as a top seat (103) and a lower seat (104) for securing the body (200).

The driving module (110) is configured to receive a driving signal from the control circuit (150) or other control terminal to rotate the driving module. As shown, the direction of the drive module shaft (not numbered) is directed toward the center of the tube (200). The driving module (110) can be accommodated in the upper and lower casings (101, 102) via a supporting means. As shown, the driving module (110) can be coupled to a fixing member (111), and the fixing member (111) is configured to cooperate with a limiting structure in the upper and lower casings (101, 102) to drive the driving module. The group (110) can be more stably accommodated therein.

One side of the calibration assembly (120) (as shown in the third figure) is configured to couple with the shaft of the drive module (110) to transmit the driving force to the calibration structure (120). The other side of the calibration assembly (120) is configured to interface with the connector (130). The calibration assembly (120) and the connector (130) constitute a transmission assembly that transmits the driving force of the drive module. Through the transmission assembly, the power of the drive module (110) is transmitted to a valve body (201) housed in the body (200).

Referring to the third figure, the calibration component (120) includes a pair of touch switches (301, 302), a cam (303), and a support structure (304). The pair of touch switches (301, 302) are supported by the support structure (304), and the support structure (304) is configured to be stably received in the upper and lower shells (101, 102), so that the pair of touch switches (301, 302) ) are in different vertical and horizontal positions in the outer casing (100). Of course, in other possible embodiments, other changes of the support structure (304) may cause the pair of touch switches (301, 302) to be placed differently, or the relative relationship between the pair of touch switches may be changed. . The pair of touch switches (301, 302) can be implemented by a large current micro switch, and the details thereof are not described herein. The pair of touch switches have a first touch switch (301) in a first position and a second touch switch (302) in a second position configured to clamp or only surround the cam ( Around 303). The distal end of the first touch switch (301) and the second touch switch (302), that is, the contact end with the cam (303), can adopt a roller means to make the contact between the cam (303) and the touch switch smoother. . The first touch switch (301) and the second touch switch (302) respectively have an elastic mechanism, as shown, as a resilient arm (305) that supports the roller means around the cam (303).

The cam (303) has a projection (3031) and a recess (3032). The cam (303) may be an annular structure, a cylindrical structure or a plate-like structure. The projection (3031) extends outwardly from a peripheral surface of the cam (303), and the recess (3032) is configured to be appropriately sized and shaped to engage the drive module (110) shaft. Preferably, the size of the cam (303) is appropriately selected such that the projection (3031) moves along a rotation path, and the rotation path passes through the pair of touch switches (301, 302) at the first position and the second position. ). Specifically, the protruding portion (3031) is configured to move between the pair of touch switches (301, 302) without crossing any of the touch switches. In an embodiment, the pair of touch switches (301, 302) and the cam (303) are configured such that the projections (3031) are defined by a first position and a second position and a cam rotation axis. Move within a ten degree range. Any one of the pair of touch switches (301, 302) can generate a touch signal after receiving a certain pressure from the protruding portion (3031). The control circuit (150) can stop the driving module (110) from responding to the touch signal. Therefore, the cooperation of the front elastic mechanism with the cam (303) is important for mechanical sensitivity.

In other embodiments, the number of touch switches can be greater or less than two. In some embodiments, the number of projections may also be greater than one. In a possible embodiment, more touch switches and cam combinations can be included in a single calibration mechanism.

Referring back to the second figure, the other side of the cam (303) is engaged with the connector (130), that is, the contact surface of the cam (303) and the connector (130) can be configured to have a mechanical structure that cooperates with each other, such as a rib and The groove allows the cam (303) and the connector (130) to rotate synchronously. The connector (130) is also coupled to the valve body (201) in the body (200) by suitable means, which may be a ball valve or a butterfly valve or the like.

The temperature detector (140) is embedded in the body (200) in an appropriate manner, for example, embedded in the wall of the body, and transmits a detection signal to the control circuit (150), thereby detecting the temperature of the water flowing through the body (200). The control circuit (150) may include a circuit configuration such as a processor and a memory for performing signal processing and executing instructions. The control circuit (150) can be configured to communicate with a remote computer to exchange various data or control commands with each other.

The fourth A diagram and the fourth B diagram respectively show a control flow of the flow valve, including steps S400 to S402 and steps S403 to S404.

Figure 4A depicts an automatic calibration mechanism of the flow valve after it has been activated from a closed state. In the control of the stepless switch, the rotation of the drive module does not have a fixed position, and the error is easily accumulated in a plurality of rotations, so that the desired position of the control command does not coincide with the actual position of the valve body (201). The control circuit (150) can perform these steps in part or in whole. In step S400, the flow valve is activated. Prior to this step, the flow valve may be in a closed or standby state, ie, not in operation. The control circuit (150) of the flow valve can execute an internally contained command based on an activation signal from the internal or remote end. Step S400 is ended.

In step S401, according to the activation, the control circuit (150) causes the driving module (110) to rotate the cam (303) until the protruding portion (3031) touches one of the pair of touch switches (301, 302). According to the initial setting, the protruding portion (3031) rotates clockwise or counterclockwise to touch the first touch switch (301) or the second touch switch (302) until the switch generates a touch signal according to the touch. , indicating that the projection (3031) of the cam (303) has reached the first position or the second position of the calibration. Step S401 is ended.

In step S402, according to the aforementioned touch, the control circuit (150) causes the driving module (110) to stop rotating the cam (303), thereby stopping the protruding portion (3031) of the cam (303) in the first position or the second position. The position is adjacent to the first touch switch (301) or the second touch switch (302). At this time, the valve body (201) of the flow valve also reaches a preset starting position corresponding to the first position or the second position, and the calibration of the flow valve is completed. In an embodiment, the starting position indicates a state in which the flow rate of the flow valve is all closed or open. Of course, this creation is not limited to this. Therefore, whenever a flow valve is activated or awakened, the calibration mechanism will be performed together. The control circuit (150) may not recognize the position of the valve body (201), but the calibration mechanism ensures that the valve body will return to the identifiable starting position of the control circuit (150), that is, the flow is closed or fully open. . In this step, the switch touched by the cam (303) is regarded as a preset starting position for calibration, and the other untouched switch is regarded as a limit of the cam (303) or the valve body (201). The position, that is, the maximum amount of rotation from the preset starting position. Step S402 is ended.

In other embodiments, the aforementioned calibration mechanism can still be performed in a state where the flow valve is not closed and can be operated. After a number of flow control valves without step control, a certain degree of rotation error may have accumulated. In this regard, the control circuit (150) can perform the aforementioned steps S401 and S402 based on the calibration signal from the internal or remote end. In some embodiments, the control circuit (150) completes the calibration after the cam (303) returns to the preset starting position, and the control circuit (150) can further automatically customize the cam (303) according to user requirements and settings. The preset starting position is rotated to a starting position between the touch switches (301, 302) as a position that the valve body (201) must stay after being calibrated. This may be because the valve body (201) after calibration is not expected to be in a fully open or fully closed position.

The fourth B diagram depicts the temperature control flow for the flow valve, including steps S403 and S404. In step S403, the temperature of the water flowing through the flow valve is read by a temperature detecting means. The detection is performed by embedding the temperature detector (140) in the body (200). Generally, the flow valve is installed at a water outlet of the coil fan, so the water temperature of the water outlet is mainly detected. The temperature detector (140) generates a detection signal based on the current water temperature or a temperature difference. The process ends in step S403.

In step S404, the control circuit (150) rotates or does not rotate the driving module (110) according to the temperature detection and a predetermined temperature threshold, wherein the rotation is clockwise or counterclockwise, and the rotation range It is related to a rotation time of the drive module. In one embodiment, the control circuit (150) is configured to drive the drive module (110) with a time parameter that is rotated at a constant speed in accordance with the parameter. The unit of the time parameter can be seconds or milliseconds, so that the action of the drive module (110) is changed as if there is no segment.

The aforementioned flow valve can be included in a cooling and heating system. Specifically, the inventive flow valve can be placed at the water outlet end of the coil fan in the system to achieve water temperature monitoring and flow control. The cooling and heating system optionally provides a cooling mode or a heating mode depending on the temperature of the water provided by the system, and the flow valve can be configured to perform flow control based on the cooling mode or the heating mode. For example, the control circuit of the inventive flow valve can be configured to (150) identify that the system is performing a cooling mode or a heating mode based on a detection signal from the temperature detector (140). In an embodiment, the control circuit (150) may further identify the mode based on one or more preset thresholds. The control circuit (150) parses a temperature value associated with the detection signal and compares it with the threshold to determine whether the system is performing a cool air mode or a heating mode. For example, when the outlet temperature is less than 15 degrees Celsius for the cold water mode, when the outlet temperature is greater than forty degrees Celsius for the heating mode.

Figures 5A and 5B show test data for a conventional two-way valve. The sixth A diagram and the sixth B diagram show the test data of the creation flow valve. Figures 5A and 6A are statistics on the amount of water in time and the amount of water produced. Figures 5B and 6B are statistics regarding temporal influent temperature and outlet water temperature. These data are based on the same test, including room temperature once the temperature reaches 30 degrees Celsius to start the ice water main unit, the temperature control is 23 degrees Celsius, the heating load is 45% and the pumping frequency is 60 Hz. The solid line data in the figure is detected at the water outlet or the return water. The dotted line is the detection at the inlet, the chain line is the instantaneous indoor temperature, and the hatching is the temperature difference between the inlet and outlet.

Comparing the fifth and sixth diagrams, the difference in water intake can be known. The water intake of the known two-way valve is 6.5 GPM in this test, and the average flow valve is 4 GPM in this test. Obviously, the water consumption of the flow valve of this creation is relatively saved. Comparing the fifth B and the sixth B, the temperature difference between the inlet and outlet water can be known. The temperature difference between the inlet and outlet water of the known two-way valve is 3 degrees Celsius in the test, and the temperature difference between the inlet and outlet of the artificial flow valve is The average of this test is about 5 degrees Celsius. Obviously, the water of the original flow valve can absorb a relatively large amount of heat, and the cooling efficiency is better. It should be understood that the data shown is only an example of the present authoring test and does not limit the various embodiments of the present invention.

In summary, the present invention has the following advantages over the prior art, and has the ability to self-calibrate the position of the valve body; the segmentless drive module can obtain more precise temperature control.

Accordingly, these descriptions support a combination of means for performing such specific actions, a combination of a plurality of specific operations that support execution, and a program command mode that supports the execution of such specific actions. It will also be appreciated that each block in the flowchart depiction and the combination of blocks in the flowchart depiction can be implemented by a module, such as a system based on a special purpose hardware, which performs the specific actions. Steps, or a combination of special purpose hardware and computer instructions.

The above description provides a complete description of the manufacture and use of the combinations of the specific embodiments. Since many specific embodiments can be made without departing from the spirit and scope of the invention, these specific embodiments are intended to be included in the scope of the appended claims.

100‧‧‧ Shell

200‧‧‧ ontology

101‧‧‧Upper shell

201‧‧‧ valve body

102‧‧‧lower shell

301‧‧‧First touch switch

103‧‧‧上上

302‧‧‧Second touch switch

104‧‧‧The lower seat

303‧‧‧ cam

110‧‧‧Drive Module

3031‧‧‧Protruding

120‧‧‧ Calibration components

3032‧‧‧ Groove

130‧‧‧Connector

304‧‧‧Support structure

140‧‧‧Temperature Detector

305‧‧‧Flexible arm

150‧‧‧Control circuit

S400-S404‧‧‧Steps

The first figure shows a perspective view of the inventive flow valve.

The second image shows an exploded view of the creation flow valve.

The third figure shows a plan view of the authoring calibration assembly.

Figures 4 through 4B show the control flow of the inventive flow valve.

Figures 5 through 5B are test curves of a conventional two-way valve.

The sixth to sixth B charts are the test curves of the creative flow valve.

Claims (10)

A heating and cooling air conditioning system comprising: a host providing circulating ice water and warm water; a load coupled to the host to receive the ice water and warm water; and a flow valve disposed at the load to adjust the load Ice water or warm water flow, the flow valve comprises: a body having a first-class circuit; a valve body rotatably received in the flow channel; a temperature detector configured to read temperature information about the body a driving module is mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate. The transmission assembly includes a pair of touch switches and a cam, and the cam is coupled to the driving module. The cam has a protruding portion configured to be movable between the pair of touch switches; and a control circuit for receiving a detection signal by the temperature detector and communicatively connecting to the driving The module is configured to drive the valve body to rotate, and adjust a position of the protruding portion of the cam relative to the pair of touch switches according to the detecting signal. A flow valve comprising: a body having a first-class track; a valve body rotatably received in the flow path; a temperature detector configured to read temperature information about the body; a drive module, Mechanically coupling the valve body to drive the valve body through a transmission assembly, wherein the transmission assembly includes a pair of touch switches and a cam, the cam is coupled to the drive module, and the cam has a convex An output portion configured to be movable between the pair of touch switches; and a control circuit for receiving a detection signal by the temperature detector and communicatively connecting to the driving module to enable the driving The module drives the valve body to rotate, and according to the detection signal, adjusts a position of the protruding portion of the cam relative to the pair of touch switches. A flow valve includes: a valve body for controlling a flow rate; a drive module mechanically coupled to the valve body via a transmission assembly to drive the valve body to rotate, and the transmission assembly includes a pair of touches a switch and a cam coupled to the driving module, the cam having a protrusion and the protrusion being configured to be movable between the pair of touch switches; and a control circuit for receiving a detection signal And the communication module is connected to the driving module, so that the driving module drives the valve body to rotate, and according to the detecting signal, the protruding portion touches the pair of touch switches to transmit a touch signal to the control circuit, After the control circuit returns the protruding portion to a preset starting position based on the touch signal, and starting from the preset starting position, adjusting the protruding portion of the cam to be placed on the pair of touch switches Preset location. The flow valve of claim 3, wherein the valve body is a ball valve or a butterfly valve. The flow valve of claim 3, wherein the transmission assembly further comprises a connector that connects the cam of the calibration assembly to the valve body. The flow valve of claim 3, wherein the pair of touch switches has a first touch switch in a first position and a second touch switch in a second position, the cam The projection moves between the first position and the second position. The flow valve of claim 6, wherein the first touch switch and the second touch switch respectively have an elastic mechanism. The flow valve of claim 6, wherein the first position and the second position determine a rotatable range of the cam. The flow valve of claim 8, wherein the cam has a rotatable range of ninety degrees. The flow valve of claim 5, wherein the connector is coupled to the cam by an engagement means.