TWM580644U - Temperature control valve - Google Patents

Abstract

A temperature control valve includes a body, a sensing seat, a trigger switch, a controller, and a temperature sensor. The body has a first inflow port, a second inflow port, and a outflow port that are in communication with each other. The sensing seat comprises a seat body and a reed switch disposed on the seat body, and the seat body and the body together form a mixing space. The trigger switch is movably disposed on the seat body, and the trigger switch is located in the mixing space and corresponds to the reed switch. The controller is electrically connected to the reed switch. The temperature sensor is located in the mixing space and is electrically connected to the controller. When the trigger switch is not pushed by the fluid, the reed switch is in an open state and the controller turns off the temperature sensor. When the fluid flows into the mixing space and pushes against the trigger switch, the reed switch is in an on state to cause the controller to turn on the temperature sensor.

Description

Temperature control valve

The present invention relates to a temperature control valve, and more particularly to a water temperature control valve including a reed switch.

In general, a temperature control valve for mixing cold water and hot water in a water heater is provided with a temperature sensor to measure the temperature of the water flowing in the temperature control valve. In this way, the mixing ratio between the cold water and the hot water can be adjusted according to the measured temperature information, thereby adjusting the temperature of the output water produced by the mixing of the cold water and the hot water.

However, since the temperature sensor is usually turned on when cold water and hot water are just injected into the temperature control valve, moisture is left in the temperature control valve after each use of the water heater; therefore, when the water heater is just activated, The temperature sensor that is turned on first measures the temperature of the moisture remaining in the temperature control valve, and adjusts the mixing ratio between the cold water and the hot water according to the temperature. As a result, the temperature control valve cannot accurately adjust the temperature of the output water.

The present invention provides a temperature control valve for precisely adjusting the temperature of the output water.

The temperature control valve disclosed in one embodiment of the present invention includes a body, a sensing seat, a trigger switch, a controller, and a temperature sensor. The body has a first inflow port, a second inflow port, and a outflow port that are in communication with each other. The sensing seat comprises a seat body and a reed switch disposed on the seat body, and the seat body and the body together form a mixing space. The mixing space is connected to the outflow port. The trigger switch is movably disposed on the seat body, and the trigger switch is located in the mixing space and corresponds to the reed switch. The controller is electrically connected to the reed switch. The temperature sensor is located in the mixing space and is electrically connected to the controller. When the fluid flows into the mixing space and pushes against the trigger switch, the reed switch is in an on state to cause the controller to turn on the temperature sensor. When the trigger switch is not pushed by the fluid, the reed switch is in an open state and the controller turns off the temperature sensor.

According to the temperature control valve disclosed in the above embodiment, through the combination of the reed switch and the trigger switch, when the water heater is just activated, the trigger switch that has not been pushed by the fluid causes the reed switch to be in an off state, and the temperature sensing is performed. The device is off. In this way, the controller does not adjust the proportion of the fluid in the first inlet and the second inlet into the mixing space according to the temperature of the moisture remaining in the mixing chamber when the temperature control valve is just opened. Therefore, the controller can precisely adjust the temperature of the fluid in the outflow port.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the principles of the present invention and to provide a further explanation of the scope of the present application.

The detailed features and advantages of the embodiments of the present invention are set forth in the detailed description of the embodiments of the present invention. The content, the scope of the patent application and the drawings, any one of ordinary skill in the art can easily understand the related objects and advantages of the present invention. The following examples are intended to describe the present invention in further detail, but do not limit the scope of the present invention in any way.

Please refer to Figure 1 to Figure 4. 1 is a perspective view of a temperature control valve in accordance with an embodiment of the present invention. Figure 2 is an exploded view of the temperature control valve of Figure 1. Figure 3 is a top plan view of the temperature control valve of Figure 1 with the controller and drive components removed. 4 is a schematic cross-sectional view of the temperature control valve of FIG. 3 taken along a face line 3-3.

The temperature control valve 10 of the present embodiment includes a body 100, a sensing base 200, a trigger switch 300, a pivoting shaft 400, a controller 500, a temperature sensor 600, a shunt 700, and a drive. Element 800.

The body 100 has a first inflow port 101, a second inflow port 102, and a first-rate outlet 103 that are in communication with each other.

The sensing base 200 includes a body 201 and a reed switch 202. The reed switch 202 is disposed in the housing 201 through the opening 2012 of the base 201. The body 201 and the body 100 together form a mixing space 150. The mixing space 150 is in communication with the first inflow port 101, the second inflow port 102, and the outflow port 103. In addition, the base 201 may have two first pivot holes 2010 and may have a sensing area 2011 located in the mixing space 150.

For example, the reed switch 202 can include a housing 2020 and a dual spring 2021. The two-spring piece 2021 is disposed in the outer casing 2020. When the reed switch 202 is in an on state, the two reeds 2021 are in contact; when the reed switch 202 is in an off state, the two reeds 2021 are separated.

The trigger switch 300 includes a housing 301 that is not magnetic and a magnetic body 302 that is disposed in the housing 301. The housing 301 is movably disposed on the base 201 and is located in the mixing space 150 and corresponds to the reed switch 202. In a gravity direction G, the trigger switch 300 can be located, for example, below the reed switch 202. In addition, the housing 301 can have two second pivot holes 3000, and a side of the housing 301 adjacent to the reed switch 202 can protrude with a convex portion 3001. The present invention is not limited to the arrangement of the convex portion 3001. In other embodiments, the convex portion may also be omitted.

The pivoting shaft 400 is inserted into the two first pivoting holes 2010 and the second pivoting holes 3000, and the triggering switch 300 is pivotally connected to the base 201 through the pivoting shaft 400, but the present invention is not limited thereto; In other embodiments, the temperature control valve may also movably set the trigger switch to the base body without including a pivot shaft. Further, in the embodiment in which the pivoting shaft is omitted, the seat body does not need to have the first pivoting hole, and the housing of the triggering switch does not need to have the second pivoting hole.

The controller 500 is electrically connected to the reed switch 202.

The temperature sensor 600 is located in the mixing space 150 and is electrically connected to the controller 500.

The flow dividing member 700 is disposed in the body 100. The driving component 800 is electrically connected to the controller 500 and is connected to the diverter 700 for driving the shunt 700 to rotate, thereby controlling the inflow of the first inflow port 101 and the second inflow port 102 into the mixing space 150. In detail, the flow dividing member 700 includes a connected shaft portion 701 and a flow dividing portion 702. The shaft portion 701 is disposed in the opening 801 of the driving component 800 and is fixed to a rotating shaft (not shown) of the driving component 800. The flow dividing portion 702 has a flow dividing hole 7020, and the distributing flow hole 7020 is for controlling the inflow amount of the first inflow port 101 and the second inflow port 102 into the mixing space 150.

However, the present invention is not limited to the arrangement of the shunt member 700 and the driving member 800. In other embodiments, the temperature control valve may adjust the first inflow port and the second stream in other manners without providing a shunt member and a driving member. The inflow of the inlet into the mixing space.

The temperature control valve 10 of this embodiment may further include a fixing member 850 and a plurality of waterproof gaskets 900. The fixing member 850 is interposed between the shaft portion 701 of the flow dividing member 700 and the body 100. The waterproof gasket 900 is sandwiched between the fixing member 850 and the body 100 to increase the adhesion between the fixing member 850 and the body 100.

However, the present invention is not limited to the arrangement of the fixing member 850 and the plurality of waterproof gaskets 900; in other embodiments, the temperature control valve may not need to be provided with a fixing member. Further, in the embodiment in which the fixing member is not provided, the waterproof gasket can also be omitted.

The temperature control valve 10 of this embodiment may further include a fixing plate 950. The fixing plate 950 is fixed to the body 100, and the temperature sensor 600 is fixed to the fixing plate 950. That is, the temperature sensor 600 is fixed to the body 100 through the fixing plate 950, but the present invention is not limited thereto; in other embodiments, other structures may be used to fix the temperature sensor to the body. .

Please refer to Figure 2, Figure 5 and Figure 6. Figure 5 is a partial enlarged view of Figure 4. Figure 6 is a partial enlarged view of the temperature control valve of Figure 4 when it is filled with fluid.

In this embodiment, the trigger switch 300 has a separated position (as shown in FIG. 5) and a contact position (as shown in FIG. 6).

When the trigger switch 300 is not pushed, the trigger switch 300 is placed in the mixing space 150 by the gravity applied in the gravity direction G, and is thus located at the separated position. As a result, the convex portion 3001 is separated from the sensing region 2011, and the magnetic body 302 of the trigger switch 300 does not magnetize the two-spring piece 2021 of the reed switch 202, thereby keeping the two-spring piece 2021 phase-separated. Therefore, when the trigger switch 300 is in the disengaged position, the reed switch 202 will be in the off state, and the controller 500 will turn off the temperature sensor 600. Therefore, even if there is residual moisture in the mixing space 150 just after the temperature control valve 10 is opened, the temperature sensor 600 that is turned off by the trigger switch 300 without being pushed up does not sense the temperature of the residual moisture.

In this embodiment, the body 100 is used to supply a fluid 20 to flow. For example, fluid 20 can be water; first inlet 101 can be a hot water inlet; second inlet 102 can be a cold water inlet; and outlet 103 can be a water outlet. The mixing space 150 may be a space for mixing the hot water in the first inflow port 101 and the cold water in the second inflow port 102. A temperature sensor 600 located in the mixing space 150 can be used to measure the temperature of the output water in the mixing space 150. The flow dividing member 700 and the driving member 800 can be used to control the ratio between the hot water flowing into the mixing space 150 from the first inflow port 101 and the cold water flowing into the mixing space 150 from the second inflow port 102, thereby forming a specificity in the mixing space 150. The output water of the temperature.

When the fluid 20 flows into the mixing space 150, the fluid 20 will push against the trigger switch 300. The triggered trigger switch 300 pivots in a rotational direction A to be in the contact position, and contacts the sensing area 2011 by the convex portion 3001 to maintain the trigger switch 300 at an appropriate distance from the two-spring piece 2021 of the reed switch 202. . The magnetic body 302 of the trigger switch 300 can magnetize the two-spring piece 2021 of the reed switch 202 while maintaining this appropriate distance. The magnetized two-spring pieces 2021 are attracted to each other and contacted, so that the reed switch 202 is in an on state. As such, the controller 500 turns on the temperature sensor 600. As temperature sensor 600 is turned on, controller 500 can control drive element 800 to rotate shunt 700 based on the temperature measured by temperature sensor 600. Therefore, the hot water flowing in from the first inflow port 101 and the cold water flowing in from the second inflow port 102 can be mixed through the diverting holes 7020 of the diverting portion 702 in an appropriate ratio to form a desired temperature in the mixing space 150. Output water.

However, the trigger switch 300 of the present invention is not limited to having to contact the sensing area 2011 when it is pushed by the fluid 20. That is to say, in other embodiments, the trigger switch that is pushed by the fluid can also cause the magnetic body of the trigger switch to magnetize the two reeds in the reed switch without touching the sensing area. Furthermore, in the embodiment in which the trigger switch has no contact-sensing area urged by the fluid, the convex portion can be omitted and the sensing region in contact with the convex portion is not particularly designed.

According to the temperature control valve disclosed in the above embodiment, through the combination of the reed switch and the trigger switch, when the water heater is just activated, the trigger switch that has not been pushed by the fluid causes the reed switch to be in an off state, and the temperature sensing is performed. The device is off. In this way, the controller does not adjust the proportion of the fluid in the first inlet and the second inlet into the mixing space according to the temperature of the moisture remaining in the mixing chamber when the temperature control valve is just opened. Therefore, the controller can precisely adjust the temperature of the fluid in the outflow port.

Although the present invention has been described above in the foregoing embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the new patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

10‧‧‧temperature control valve  100‧‧‧ body  101‧‧‧ first entrance  102‧‧‧Second inflow  103‧‧‧Exit  150‧‧‧ mixed space  200‧‧‧Sense seat  201‧‧‧ body  2012‧‧‧ openings  2010‧‧‧First pivot hole  2011‧‧‧Sensing area  202‧‧‧Reed switch  2020‧‧‧ Shell  2021‧‧‧ Reeds  300‧‧‧Trigger switch  301‧‧‧Shell  302‧‧‧ magnetic body  3000‧‧‧Second pivot hole  3001‧‧‧ convex  400‧‧‧ pivot shaft  500‧‧‧ controller  600‧‧‧temperature sensor  700‧‧‧Diverter  701‧‧‧Axis  702‧‧‧Diversion Department  7020‧‧ ‧Distribution  800‧‧‧ drive components  801‧‧‧ opening  850‧‧‧Fixed parts  900‧‧‧Waterproof gasket  950‧‧‧ fixed board  20‧‧‧ fluid  A‧‧‧Rotation direction  G‧‧‧Gravity direction  3-3‧‧‧Cutting line  

1 is a perspective view of a temperature control valve in accordance with an embodiment of the present invention.  Figure 2 is an exploded view of the temperature control valve of Figure 1.  Figure 3 is a top plan view of the temperature control valve of Figure 1 with the controller and drive components removed.  4 is a schematic cross-sectional view of the temperature control valve of FIG. 3 taken along a face line 3-3.  Figure 5 is a partial enlarged view of Figure 4.  Figure 6 is a partial enlarged view of the temperature control valve of Figure 4 when it is filled with fluid.  

Claims (10)

A temperature control valve comprising:  a body having a first inflow port, a second inflow port, and a first-class outlet; the sensing block includes a body and a reed switch disposed on the body, and the body is shared with the body Forming a mixing space, the mixing space is connected to the flow outlet; a trigger switch is movably disposed on the seat body, and the trigger switch is located in the mixing space and corresponds to the reed switch; a controller, electrical Connected to the reed switch; and a temperature sensor located in the mixing space and electrically connected to the controller; wherein when the trigger switch is not pushed by a fluid, the reed switch is in a disconnection The state causes the controller to turn off the temperature sensor. When the fluid flows into the mixing space and pushes the trigger switch, the reed switch is in an on state to cause the controller to turn on the temperature sensor.   The temperature control valve of claim 1, wherein the trigger switch is located below the reed switch in a gravity direction. The temperature control valve of claim 1, wherein the seat body has a sensing area, and the sensing area is located in the mixing space, the trigger switch has a separated position and a contact position, when the trigger switch is located The reed switch is in the off state when the position is separated from the sensing area, and the reed switch is in the conducting state when the trigger switch is in the contact position and is in contact with the sensing area. The temperature control valve of claim 3, wherein a side of the trigger switch adjacent to the reed switch protrudes with a convex portion, and when the trigger switch is located at the contact position, the convex portion contacts the seat body. The sensing area. The temperature control valve of claim 1, further comprising a pivoting shaft, the base has two first pivoting holes, and the triggering switch has two second pivoting holes, and the pivoting shaft is inserted The two first pivot holes and the two second pivot holes are configured to pivotally connect the trigger switch to the base through the pivot shaft. The temperature control valve of claim 1, further comprising a diverter and a driving component, wherein the diverter is disposed in the body, the driving component is electrically connected to the controller, and is connected to the diverter And for driving the shunt member to rotate, thereby controlling the inflow amount of the first inflow port and the second inflow port into the mixing space. The temperature control valve of claim 6, further comprising a fixing member, the fixing member being sandwiched between the flow dividing member and the body. The temperature control valve of claim 7, further comprising a plurality of waterproof gaskets sandwiched between the fixing member and the body. The temperature control valve of claim 1, further comprising a fixing plate fixed to the body, and the temperature sensor is fixed to the fixing plate. The temperature control valve of claim 1, wherein the reed switch comprises a casing and a two-spring piece, wherein the two-spring piece is disposed in the casing, and when the reed switch is in the disconnected state, The two reeds are separated, and when the reed switch is in the conducting state, the two reeds are in contact.