WO2014023157A1 - 一种调温器 - Google Patents
一种调温器 Download PDFInfo
- Publication number
- WO2014023157A1 WO2014023157A1 PCT/CN2013/079778 CN2013079778W WO2014023157A1 WO 2014023157 A1 WO2014023157 A1 WO 2014023157A1 CN 2013079778 W CN2013079778 W CN 2013079778W WO 2014023157 A1 WO2014023157 A1 WO 2014023157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- interface
- port
- elastic member
- thermal element
- valve
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
- G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste
- G05D23/022—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste the sensing element being placed within a regulating fluid flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/005—Controlling temperature of lubricant
- F01M5/007—Thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
- G05D23/1306—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids
- G05D23/132—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element
- G05D23/1333—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for liquids with temperature sensing element measuring the temperature of incoming fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
Definitions
- the present invention relates to the field of heat exchange, and in particular to a thermostat.
- the lubricating oil needs to be replenished in time to ensure the normal operation of the car. If the lubrication performance of the lubricating oil is not good enough, the service life of the car will be affected, and it may even lead to a car accident. Lubricating properties of lubricating oils have a large correlation with their own temperature. If the temperature of lubricating oil is too high or too low, it will affect the lubricating performance of lubricating oil.
- the temperature of the lubricating oil is generally not too high, when the vehicle is overloaded, when the four-wheel drive mode is set to snow or off-road driving, or the vehicle is in the state of slippage of the torque converter.
- the transmission oil temperature may be too high, thus losing lubrication.
- the existing transmission oil is mainly temperature-regulated by a cooling flow path composed of a thermostat and an oil cooler. When the temperature of the transmission oil rises, the thermosensitive substance of the thermal element is thermally expanded, and the passage of the transmission oil directly to the transmission is sealed, and the high temperature oil enters the oil cooler to cool down and then flows back to the transmission.
- thermosensitive substance of the thermal element solidifies and contracts, the push rod is reset, and the passage of the transmission oil directly to the transmission is opened.
- the oil in the transmission oil passage exchanges heat with the hot gearbox components during the flow, and the oil temperature gradually rises, so that the thermosensitive substance of the thermostat gradually expands to control the flow of the oil.
- the object of the present invention is to provide a new structure of the thermostat, the structural design is relatively simple, and the manufacturing and installation are more convenient.
- the invention adopts the following technical solutions:
- a thermostat comprising a valve body having a receiving cavity and a thermal element mounted in the receiving cavity, the receiving cavity communicating with the outside through at least three interfaces: a first interface, a second interface And a third interface;
- the thermal element comprises a thermodynamic element body with a heat sensitive substance, the thermal element is mounted in the receiving cavity of the valve body by two elastic components;
- the first port and the second port are respectively located at two sides of the intercepting port; the second port, the inner hole of the intercepting port and the first port form a first flow path when communicating Forming a second flow path when the first interface and the third interface are in communication;
- the valve body is provided with a first valve port at the third interface portion, and the first valve port is a port for communicating between the third interface and the cavity where the thermal element body is disposed;
- the first valve port is a port for communicating between the third interface and the cavity where the thermal element body is disposed;
- the valve port is closed, the second flow passage is cut off, and the first flow passage is connected;
- a second valve port is disposed on the intercepting weir to communicate with the first interface and the second interface, and the second valve port is oriented toward the intercepting raft
- the port of the third interface or the port of the inner hole of the shutoff port when the second valve port is closed, the second flow path is connected, and the first flow path is cut off.
- one end of the valve body is open and communicates with the receiving cavity, and the open end of the valve body is closed by a sealing and fixed end cap;
- the thermal element further comprises a sliding component mounted on the body of the thermal component a ram of the first end, one end of the ram is located outside the body of the thermal element and passes through the annular hole of the intercepting raft;
- the two elastic members include a first elastic member and a second elastic member; the first elastic member is disposed on the side of the end cover or near the end cover, one end of which is connected to the end cover, and the other end is at least in motion Relating or indirect contact with the ram; the second elastic member is disposed at or adjacent to the third interface, and one end of the second elastic member is connected to the inner wall portion or the bottom of the valve body accommodating chamber a wall portion, the other end of which is connected to the body; the initial deformation force of the first elastic member is greater than or equal to the second elasticity when the first 4th junction portion 4 is connected to the portion where the first valve port is located a pressure applied to the component; the heat sensitive material expands when the thermal element is heated, so that after the plunger resists or indirectly contacts the first elastic component, the body moves relative to the plunger to move toward the third interface until After the first abutting portion abuts the portion where the first valve port is located, the ejector pin compresses the first elastic member and
- the valve body is further provided with a third flow channel communicating with the third interface, and a central axis of the third interface and the third flow channel may be substantially perpendicular, the third interface and the third a third runner connection forming a shoulder, the second elastic member abutting one end of the valve body abutting a shoulder formed at a junction of the third interface and the third flow passage; when the fluid temperature is high The heat sensitive material in the thermal element expands, and the thermal element body moves toward the third interface against the elastic force of the second elastic member until the first abutting portion and the first valve port are pressed Tight Contacting, sealing the third interface; a radius of the third interface may be greater than a radius of the third flow channel, and a distance from a bottom of the third flow channel to a bottom of the third interface is L, The diameter of the flow channel is R, where: 1>L/R > 1/16.
- the main body side of the main body of the thermal element is provided with a damper, the outer diameter of the dam is larger than the inner diameter of the third interface, and the outer diameter of the end of the body from the dam to the third interface is smaller than An inner diameter of the third interface, one end of the second elastic member is in pressing contact with the dam, and the other end is in close contact with the inner wall portion or the bottom wall portion of the valve body, and the dam is fixedly mounted or attached
- the body of the thermal element is an integral structure.
- the body moves downward to drive the dam to move until the first abutment of the yoke toward the third interface abuts the A portion of the valve port is sealed to seal the third interface; and then the force generated by the thermal expansion of the heat-sensitive substance of the thermodynamic element is sufficient to urge the first elastic member to continue to compress.
- the second end of the body of the thermal element is provided with a spring mounting portion, the outer side wall diameter of the body of the thermal element is larger than the inner diameter of the third interface, and one end of the second elastic member passes through
- the spring mounting portion is fixed, the valve body is provided with a third flow passage that communicates with the third interface and its corresponding external port; the outer side wall of the body and the spring mounting portion have a flat portion as a first fit with the first valve port
- the abutting portion, the spring mounting portion is configured to radially limit the second elastic member, and the planar contact portion of the first abutting portion on the body axially limits the second elastic member; the second elastic member and the spring are mounted
- the outer diameter of the portion is smaller than the inner diameter of the third interface, and the other end of the second elastic member protrudes into the third interface of the valve body and is in press-contact with the inner wall portion or the bottom wall portion of the valve body;
- the valve body is provided with a flow channel communicating with the third interface and its corresponding external port, the body of the thermal element is a stepped cylinder, and the outer diameter of the first end is larger than the outer diameter of the second end to form a step.
- the second end sleeve of the movable element body is provided with a second elastic member having an inner diameter smaller than the outer diameter of the first end of the thermodynamic element body, and the outer end side wall diameter of the second end of the body of the thermal element is larger than that of the third interface
- An inner diameter of the second end portion of the body is chamfered or a second end of the body is in the shape of a truncated cone; the second end of the body faces the end of the third interface as a first abutting portion of the first valve port; when the thermal element is heated, the body seals the third interface when the abutting portion of the body abuts the portion where the valve port is located, and Three interface
- the external port connected to the flow channel is spaced apart from the first interface.
- the end cap is provided with an open end as an accommodating portion, and the open end faces the valve body accommodating cavity, and the thermostat further comprises a spring base and an axially positioned latching member.
- the latching member is fixedly or integrally disposed with the end cap; the first elastic member of the two elastic members is disposed in the receiving portion of the end cap, and the first elastic member is connected to the end cap at one end a bottom wall portion of the portion, the other end of which is connected to the spring base, the first elastic member, the spring base, and the latching member are sequentially disposed in the receiving portion of the end cover, and the spring base passes through the latching member It is fixed to the receiving portion of the end cover.
- the end cap is provided with an open end as an accommodating portion, the open end faces the valve body accommodating cavity, and the thermostat further comprises a spring base and an axially positioned latching member, the latching member and the seat
- the end cover is fixed or integrally disposed; the first elastic member of the two elastic members is disposed in the receiving portion of the end cover, and the first elastic member is connected to the bottom wall portion of the end cover receiving portion
- the other end is connected to the spring base, and the first elastic member, the spring base and the latching member are sequentially disposed in the receiving portion of the end cover, and the spring base is fixed at the end by the latching member a receiving portion of the cover; a side of the spring base facing away from the receiving portion is in pressing contact with the latching member or the jack; when the jack is in operation, the jack is in contact with the first elastic member through the spring base.
- the end cover is provided with a slot in the receiving portion, the latching member is locked in the slot to axially position the latching member; the end cap and the valve body are fixed by a snap spring, and the retaining spring It is disposed at the open end of the valve body, and the end cover is fixed to the open end of the valve body by the circlip, and a sealing member is disposed between the outer side wall of the end cover and the inner wall portion of the valve body.
- the end cap is integrally formed with the intercepting weir, the end cap is fixedly connected to the intercepting raft through a connecting portion, and a fluid circulation hole is disposed between the end cap and the intercepting weir,
- the second interface, the fluid flow hole, the inner hole of the intercepting weir, and the first port communicate to form a first flow channel;
- the outer diameter portion of the intercepting weir is 0.05-0.30 mm smaller than the inner wall portion of the corresponding portion on the valve body receiving cavity.
- the outer wall of the valve is provided with a connecting member that communicates with the inner receiving cavity and the external component, the connecting member and the valve body are integrated; the jack and the spring base are integrated, or the heat One end of the plunger of the movable member is fixedly mounted to the spring base.
- the thermostat is connected to an external device through a connector, and an external port is disposed outside the valve body, and a through hole corresponding to the size of the external port is disposed on the connector corresponding to the external port,
- the mounting surface of the connector to the external device and the mounting surface of the external device The shape is consistent.
- a bypass flow passage is also disposed on the intercepting weir, and the bypass flow passage maintains a flow of a certain small flow of fluid when the first flow passage is closed.
- the bypass flow passage is a small notch disposed near the inner hole of the intercepting weir or a through hole opened on the intercepting weir, and the hole has a size of 0.3-1.5 mm.
- the first flow passage of the thermostat of the present invention is provided with a shut-off weir, and the thermodynamic element is moved or contracted by the contraction or expansion of the thermosensitive substance to open or close the intercepting weir, so that in the case of low oil temperature, the transmission oil Flowing directly from the second passage to the transmission without entering the external cooling unit from the first passage ensures a rapid rise of the transmission oil when the transmission oil temperature is low, thereby ensuring the lubrication performance of the transmission. Moreover, the processing precision requirements of the parts can be reduced, and the manufacturing and installation are more convenient.
- FIG. 1 is a perspective view of a thermostat according to an embodiment of the present invention.
- FIG. 2 is a front elevational view of the thermostat shown in Figure 1;
- FIG. 3 is a cross-sectional view of the thermostat according to the first embodiment of the present invention taken along the A-A direction shown in FIG. 2 in a state in which the oil passage is cut off;
- FIG. 4 is a cross-sectional view of the thermostat shown in FIG. 3 taken along the line B-B; [0034] FIG.
- FIG. 5 is a cross-sectional view of the A-A direction of the thermostat oil passage of the thermostat shown in FIG. 2 in an unobstructed state;
- FIG. 6 is a cross-sectional view of the thermostat shown in FIG. 5 in the direction of C-C;
- FIG. 7 is a cross-sectional view of the thermostat according to the second embodiment of the present invention taken along the A-A direction shown in FIG. 2 in a state in which the oil passage is cut off;
- FIG. 8 is a cross-sectional view of the thermostat F-F direction shown in FIG. 7;
- FIG. 9 is a perspective view of an end cover of a thermostat according to a first embodiment of the present invention.
- Figure 10 is a front elevational view of the end cap of Figure 9;
- FIG. 11 is a cross-sectional view of the end cap shown in FIG. 10 in the DD direction;
- Figure 12 is a left side elevational view of the end cap of Figure 9;
- Figure 13 is a cross-sectional view of the end cap of Figure 12 taken along the line E-E;
- FIG. 14 is a perspective view of an end cap of a thermostat according to a second embodiment of the present invention.
- Figure 15 is a front elevational view of the end cap of Figure 14;
- Figure 16 is a cross-sectional view of the end cap G-G of Figure 15;
- Figure 17 is a left side elevational view of the end cap of Figure 14;
- Figure 18 is a cross-sectional view of the end cap H-H of Figure 17;
- FIG. 19 is a cross-sectional view of the thermostat according to the third embodiment of the present invention taken along the A-A direction shown in FIG. 2 in a state in which the oil passage is cut off;
- FIG. 20 is a cross-sectional view of the thermostat according to the fourth embodiment of the present invention taken along the A-A direction shown in FIG. 2 in a state in which the oil passage is cut off;
- FIG. 21 is a cross-sectional view showing the connector of the thermostat of the present invention connected to an external device
- FIG. 22 is a cross-sectional view showing the temperature regulator in a state in which the oil passage is cut off according to the fifth embodiment of the present invention.
- FIG. 23 is a cross-sectional view showing the thermostat of FIG. 22 mounted in cooperation with the connector shown in FIG. 21;
- 24 is a cross-sectional view showing the temperature regulator in a state in which the oil passage is cut off according to a sixth embodiment of the present invention.
- FIG. 25 is a perspective view of the temperature regulator end cover of FIG. 24;
- 26 is a cross-sectional view of the end cap.
- thermosensitive substance of the thermodynamic element expands or contracts according to the temperature of the oil in the thermostat, and controls the amount of lubricating oil entering the external fluid cooling device to shift the speed.
- the working temperature of the lubricating oil in the box is controlled within the effective range, and the temperature of the lubricating oil is prevented from being too high or too low, so that the lubricating oil has better lubricating performance, thereby effectively maintaining the normal operation of the gearbox.
- the top, bottom, left, right, top, bottom, and the like in the specification are all described in terms of the relationship of up, down, left, and right in the drawings.
- the initial deforming force of the first elastic member 203 mentioned in the present specification means that when the first elastic member 203 is subjected to compression deformation by the pressure of the jack 205, the latching member 119 is no longer subjected to the application of the first elastic member 203.
- the thermostat includes a valve body 102 provided with a receiving cavity 108 and a fitting fit in the receiving cavity 108.
- Thermal components The thermodynamic element includes a body 204 containing a heat sensitive substance and a ram 205 slidably mounted at one end of the body, and one end of the ram 205 is exposed outside the body 204; the valve body 102 is provided with an open end, and the open end is closed by the end cover 101.
- the thermal element is mounted in the accommodating chamber 108 of the valve body 102 by two elastic members (i.e., the first elastic member and the second elastic member).
- a fixed-cut annular shut-off weir 111 is provided in the accommodating chamber 108.
- the valve body 102 also includes three interfaces, a first interface 104, a second interface 105, and a third interface 106.
- a first valve port 114 is disposed between the third interface 106 and the first interface 104, and the first interface 104 and the second interface 105 are respectively located on both sides of the intercepting port 111.
- the valve body 102 forms a first valve port 114 at a portion where the third port 106 is disposed, and the first valve port 114 forms a port for communication between the third port and the cavity in which the body of the thermal element is disposed.
- the thermal element When the thermal element is heated, the heat sensitive substance expands, so that after the ram is in contact with or indirectly resists the first elastic part, the body moves relative to the ram to move toward the third interface until the first 4th joint of the body After the first valve port 114 is received, that is, the valve body is at the bottom wall surface of the plane of the first valve port 114, the ejector pin compresses the first elastic member and moves toward the end cover.
- the first elastic member is disposed on the side of the end cover or adjacent to the end cover, and one end of the first elastic member abuts the end cover, and the other end interferes with or indirectly interferes with the ejector at least when the action is performed;
- One end of the second elastic member abuts on the inner wall portion or the bottom wall portion of the valve body accommodating chamber at the third interface or near the third interface side, and the other end abuts on the body; the initial of the first elastic member 203
- the deformation force is greater than or equal to the pressure applied by the second elastic member 206 when the body covers the first valve port.
- the outer side of the valve body 102 is provided with an external port that communicates with an external device such as an oil cooler: a first port 3050, a second port 3070, and the other side of the valve body 102 is provided with an external device such as
- the first connecting member 304 and the second connecting member 306 are connected to the transmission oil passage.
- the connecting member and the valve body are integrated, which reduces the outer contour size of the thermostat, saves installation space, and reduces the risk of fluid leakage in the structure in which the connecting member and the valve body are fixedly connected. And the earthquake resistance is also improved.
- the connecting member and the valve body may also be a combined structure.
- the first The second port 105, the inner hole of the shutoff port 111 and the first port 104 communicate with each other to form a first flow channel
- the first port 104, the first valve port 114 and the third port 106 communicate with each other to form a second flow channel
- the second valve port 115 is formed on the crucible 111 to communicate with the first interface and the second interface, the second valve port is a port of the intercepting port facing the third port, and the second valve port may also be a intercepting bore.
- a lower fluid temperature refers to a temperature at which the temperature reaches a preset low temperature and below.
- the body 204 moves relative to the ejector 205 to move toward the third interface 106.
- the first abutting portion 2041 provided on the body 204 abuts the portion where the first valve port 114 is located to seal the third interface 106, the second flow path is cut off, and the first flow path is connected.
- Higher fluid temperatures refer to temperatures above the preset high temperature and above. In this way, the thermostat can control the flow leakage through the two flow passages through the movement of the thermal element, which can effectively control the internal leakage problem of the thermostat.
- the open end of the valve body 102 is provided with a fixedly mounted snap spring 100, and the end cap 101 is fixed to the open end of the valve body 102 by the snap spring 100, and its radial position Engaged with the open end of the valve body 102, the end cap 101 is pressed into contact with the snap spring 100 to fix its axial position.
- a first sealing jaw 103 is provided between the end cap 101 and the inner wall of the valve body 102.
- the exposed end of the ejector pin 205 passes through the annular hole of the intercepting cymbal 111 in virtual contact with the spring base 109, that is, there is no mutual force between the two.
- the other end of the first elastic member 203 is fixed by the spring base 1094 to the latch member 119.
- the other end of the thermal element body 204 is provided with a second elastic member 206 in a compressed state, and the initial deformation force of the first elastic member 203 is greater than or equal to the first valve portion 4 of the body being connected to the first valve port 114. The pressure applied to the second elastic member 206 at the time of the position or its elastic force.
- the temperature regulator according to the first embodiment of the present invention will now be described.
- the end cover 101 includes a locking portion 121 and a main body portion having a smaller outer diameter than the engaging portion 130, a shut-off weir 111, a connecting portion 141 connecting the intercepting weir 111 and the main body portion 130.
- the connecting portion includes two block-shaped connecting portions symmetrically disposed, and the main body portion 130 is provided with a second groove 131;
- the cavity 171 is defined in the opening 101 and opens toward one end of the accommodating cavity 108.
- the cavity 171 is provided with a card slot 181.
- the engaging portion 121 of the end cover 101 is engaged with the step portion provided in the open end of the valve body, and the end cover 101 and the valve body are sealed by the first sealing jaw 103 provided in the second recess 131, and are locked by the retaining spring 100. It is fixed in the groove of the valve body.
- the cavity 171 of the end cap 101 is provided with a first elastic member 203, a spring base 109, and a latching member 119 fixedly mounted inside the open end of the end cap 101.
- One end of the first elastic member 203 is pressed against the bottom wall of the end cover 101, and the other end of the first elastic member 203 is pressed into contact with the spring base 109.
- the spring base 109 passes through the latching member that is locked in the card slot 181.
- a fluid flow hole 151 is further disposed between the end cover 101 and the shut-off port 111, and the second port 105, the flow hole 151, the inner hole of the shut-off port 111, that is, the second valve port 115, and the first port 104 are connected to form a first First class road.
- the outer diameter portion of the shutoff weir 111 is engaged with the inner wall portion of the corresponding portion on the valve body accommodating chamber. Specifically, the outer diameter portion of the shutoff weir 111 is 0.05-0.30 mm smaller than the inner wall portion of the corresponding portion on the valve body accommodating chamber.
- the ejector pin 205 and the spring base 109 are shown in a separate structure. When actually used, the ejector pin 205 and the spring base 109 may also be a unitary structure.
- the end cover is an integral structure, and the intercepting jaw 111 is integrally processed with the main body portion, and the metal member can be mechanically processed, or can be an injection molded part, and a plastic material such as PBT, PET, Materials such as PPS are processed by injection molding.
- PBT polyethylene
- PET PET
- Materials such as PPS are processed by injection molding.
- the use of plastic materials through the injection molding process on the one hand consumes less material, and the weight is relatively light, and the shape is processed by the injection molding process to deal with the force port.
- the structure of the end cover can also be as shown in FIG. 14 to FIG. 18.
- the end cover of this embodiment is basically the same as the technical solution of the first embodiment, except that in this embodiment, the intercepting device is A second groove 161 on which the second sealing jaw 191 is attached is provided on the outer peripheral side of the 111.
- the sealing performance between the shutoff ⁇ 111 and the inner wall portion of the valve body can be ensured.
- the thermostat further includes a dam 207 fixedly disposed at one end of the thermal element body 204; or the dam 207 is integrally formed with the thermodynamic body 204.
- First 4 ⁇ The connecting portion 2041 is a plane facing the third interface, and the step formed by the valve body at the position of the third interface forms the first valve opening 114.
- the thermal element body 204 moves toward the third interface 106 until the first yoke of the dam 207.
- the joint 2041 abuts the portion where the first valve port 114 is located, thereby sealing the third port 106, and the fluid passes through the first flow path, and is cooled by the fluid cooling device, such as the oil cooler, and then flows back from the second port 3070.
- the flow path of the third interface 106 communicates and flows back to the gearbox through the second connection member 306.
- the second elastic member 206 is disposed at or adjacent to the third interface 106.
- One end of the second elastic member abuts against the inner wall portion or the bottom wall portion of the valve body receiving cavity, and may also be connected to the third interface.
- the inner wall portion or the bottom wall portion; the other end is connected to the body; as in the embodiment, one end of the second elastic member 206 is formed at the junction of the third interface 106 and the third flow path 107.
- the other end 4 is connected to the dam of the body; and the dam 207 is press-connected to the shoulder by the second elastic member 206.
- the radius of the third interface 106 is greater than the radius of the third flow channel 107, the distance from the bottom of the third flow channel 107 to the bottom of the third interface 106 is L, and the diameter of the flow channel 107 is R, where L /R > 1/16, preferably, 1> L/R > 1/16.
- the second embodiment of the thermostat shown in FIGS. 7 and 8 is different from the first embodiment in that a second sealing jaw 191 is disposed between the end cap and the valve body to seal, and in addition, the second valve port 115 is provided.
- the lumen portion of the shut-off weir is placed to better control the flow of fluid through the flow passage.
- the dam 207 is not essential, and the abutment with the first valve port may also be directly connected to the valve body by the end of the thermal element body 204 whose outer diameter is larger than the inner diameter of the third interface 106.
- One end of the second elastic member 206 is connected to the second end of the body 204 of the thermodynamic element, and the other end thereof is in pressing contact with the inner wall portion or the bottom wall portion of the valve body 102, and the outer side wall diameter of the body 204 of the thermal element is larger than the The inner diameter of the third interface 106.
- the second end of the body 204 of the thermodynamic element is provided with a spring mounting portion 214.
- the outer sidewall diameter of the body portion of the body 204 of the thermal element is larger than the inner diameter of the third interface 106, and the outer diameter of the spring mounting portion 214 and the second elastic member 206 is smaller than the inner diameter of the third interface 106.
- One end of the second elastic member 206 is fixed by the spring mounting portion 214, and the other end thereof abuts against the inner wall portion of the valve body 102, that is, the shoulder portion formed at the junction with the third port 106 and the third flow path 107.
- the step formed between the spring mounting portion and the body forms a first 4 joint portion 2041 connected to the portion where the first valve port 114 is located.
- the spring of this embodiment The mounting portion 214 and the thermostat body 204 are of a unitary structure, and may be a separate structure in actual use.
- the body 204 of the thermal element has a stepped cylindrical shape, and a radius of the first end thereof is larger than a radius of the second end thereof to form a stepped shoulder, and the second elastic member 206 One end is pressed against the stepped shoulder on the circumferential side of the body 204 of the thermodynamic element, and the other end is in press-contact with the inner wall portion of the accommodating chamber of the valve body 102.
- the plane through which the first valve port 114 is located The second end of the thermal element body 204 is provided with a second elastic member 206 having an inner diameter smaller than the outer diameter of the first end of the main body 204 of the thermodynamic element, and the outer side wall of the second end of the body 204 of the thermal element is larger than the third end.
- the inner diameter of the interface 106 is provided with a second elastic member 206 having an inner diameter smaller than the outer diameter of the first end of the main body 204 of the thermodynamic element, and the outer side wall of the second end of the body 204 of the thermal element is larger than the third end.
- the second end of the thermal element is a frustum body, and may be a cylinder or a chamfered structure on the circumferential side of the second end portion when actually used, such that the body 204 of the thermal element is During the stroke that abuts the portion where the first valve port is located, the second flow path can still maintain a certain transition flow rate, which makes the temperature control more stable.
- a third flow passage 107 communicating with the third interface 106 is also disposed in the valve body 102, and the central axes of the two are perpendicular to each other. As shown in the embodiment shown in Figs. 3 to 8 and 20, the fluid flow in the third flow path 107 is from the top to the bottom.
- the fluid in the third flow path is a fluid into which the external member flows.
- fluid flows from the first port 104 through the first port 114 and the third port 106 directly from the third channel 107 to the thermostat.
- the flow direction of the fluid in the third flow path 107 is not limited to being from the top to the bottom, but may also be from the bottom to the top, which is determined by the specific use.
- the fluid flow in the third flow passage is from top to bottom; when the oil flows out of the first interface, the fluid flow in the third flow passage is from bottom to top. This is equally ok.
- the fluid flowing in from the inlet communicates directly with the body of the thermodynamic element such that the temperature experienced by the body of the thermodynamic element is the temperature of the oil flowing out of the transmission.
- the thermostat is connected to the fluid cooling device through the pipe member, and the present invention is not limited thereto.
- the thermostat and the external device such as the fluid cooling device pass through the connector 3. connection.
- the outer side of the valve body 102 is provided with external ports 305 and 307
- the connector 3 is provided with through holes 315 and 317 which are matched with the sizes of the external ports 305 and 307 at positions corresponding to the external ports 305 and 307.
- the mounting surface 303 of the connector 3 connected to the external device conforms to the outer contour of the mounting surface of the external device.
- the mounting surface 303 has a curved shape.
- the connector 3 further includes a communication tube mounted on a side where the connector 3 is connected to the external device, and includes a first communication tube 301 and a second communication tube 302.
- the first communication tube 301 and the first through hole 315 are in communication with the first external port 305, and the second communication tube 302 and the second communication
- the hole 317 is in communication with the second external port 307.
- the connector 3 has a fixed connection relationship with the thermostat and the external device, and may be a detachable fixed connection, such as: a screw connection, a bayonet connection, etc.; the connector 3 and the external device may also be For fixing by welding.
- the thermostat externally connects the external cooling device and the transmission tank through the pipeline.
- thermodynamic element body When the oil temperature in the gearbox is high, the heat sensitive substance in the thermal element is thermally expanded. Movement of the thermodynamic element body toward the third interface increases the flow of fluid in the first flow path until the end of the stop or the body of the thermodynamic element abuts the location of the first valve port. At this time, the second flow passage is cut off, the first flow passage is connected, and the high temperature oil coming out of the gearbox basically passes through the thermostat to enter the external cooling device, and is cooled in the external cooling device, and then flows into the transmission through the third flow passage. .
- the oil temperature control is more accurate, especially when the oil temperature is relatively low, the first flow path is initially closed, and the oil is directly returned to the shifting speed through the thermostat.
- the box shortens the heating time of the oil, so that the gearbox maintains a good lubrication state.
- the oil temperature of the external cooling device is relatively low, and when it starts to flow, the cold oil flows directly back to the gearbox.
- the invention has a certain influence on the gearbox.
- a bypass flow channel 110 is further disposed on the intercepting raft 111, and the bypass flow channel 110 may be a small hole formed in the intercepting weir, such as a size of 0.3-1.5 mm.
- a small hole where the small hole is not necessarily a circular hole, and may be a through hole of other shapes, as long as the flow rate thereof is equivalent to a flow rate of a circular hole having a diameter of 0.3 to 1.5 mm; more preferably, the small hole is The size is between 0.7-0.9mm.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13827995.5A EP2884134B1 (en) | 2012-08-07 | 2013-07-22 | Thermoregulator |
CN201380042385.1A CN104822975B (zh) | 2012-08-07 | 2013-07-22 | 一种调温器 |
US14/419,912 US10007281B2 (en) | 2012-08-07 | 2013-07-22 | Thermoregulator |
KR1020157005350A KR101682506B1 (ko) | 2012-08-07 | 2013-07-22 | 온도조절장치 |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210280625.9 | 2012-08-07 | ||
CN201210280614.0 | 2012-08-07 | ||
CN201210280614.0A CN103573991B (zh) | 2012-08-07 | 2012-08-07 | 一种用于换热回路的调温器 |
CN201210280623.XA CN103573992B (zh) | 2012-08-07 | 2012-08-07 | 一种用于调温器的端盖组件 |
CN201210280602.8A CN103573958B (zh) | 2012-08-07 | 2012-08-07 | 一种用于换热回路的调温器组件 |
CN201210280625.9A CN103574265B (zh) | 2012-08-07 | 2012-08-07 | 一种用于换热回路的调温器 |
CN201210280602.8 | 2012-08-07 | ||
CN201210280623.X | 2012-08-07 | ||
CN201210571421.0A CN103867692B (zh) | 2012-12-15 | 2012-12-15 | 一种调温器 |
CN201210571421.0 | 2012-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014023157A1 true WO2014023157A1 (zh) | 2014-02-13 |
Family
ID=50067426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/079778 WO2014023157A1 (zh) | 2012-08-07 | 2013-07-22 | 一种调温器 |
Country Status (5)
Country | Link |
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US (1) | US10007281B2 (zh) |
EP (1) | EP2884134B1 (zh) |
KR (1) | KR101682506B1 (zh) |
CN (1) | CN104822975B (zh) |
WO (1) | WO2014023157A1 (zh) |
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Also Published As
Publication number | Publication date |
---|---|
CN104822975A (zh) | 2015-08-05 |
EP2884134A4 (en) | 2016-07-06 |
KR20150038523A (ko) | 2015-04-08 |
US20150185738A1 (en) | 2015-07-02 |
CN104822975B (zh) | 2017-12-29 |
EP2884134A1 (en) | 2015-06-17 |
US10007281B2 (en) | 2018-06-26 |
EP2884134B1 (en) | 2017-03-01 |
KR101682506B1 (ko) | 2016-12-05 |
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