CN111637234A - Automobile expansion valve and processing technology thereof - Google Patents
Automobile expansion valve and processing technology thereof Download PDFInfo
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- CN111637234A CN111637234A CN202010521733.5A CN202010521733A CN111637234A CN 111637234 A CN111637234 A CN 111637234A CN 202010521733 A CN202010521733 A CN 202010521733A CN 111637234 A CN111637234 A CN 111637234A
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- shell
- valve
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- 238000012545 processing Methods 0.000 title claims description 22
- 238000005516 engineering process Methods 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002274 desiccant Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses an automobile expansion valve, which comprises a valve body, a first port arranged at the side part of the valve body, and a second port arranged at the lower part of the valve body, wherein an inner hole of the first port extends towards the inside of the valve body, a first channel is formed in the valve body, and a first clamping part is arranged at the outer end of the first channel; an inner hole of the second port extends towards the interior of the valve body, a second channel is formed in the valve body, and a second clamping part is arranged at the outer end of the second channel; and a filtering device is clamped between the first clamping part and the second clamping part. When the ice blockage occurs on the valve body, the temperature sensor senses a signal, the power supply interface is electrified, and then the frost is automatically melted under the action of the heating wire, so that the dredging efficiency is high; the filtering device is used for filtering impurities and drying moisture in the refrigerant, and meanwhile, the two situations of dirty blockage and ice blockage are avoided, and the maintenance cost is low.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an automobile expansion valve and a processing technology thereof.
Background
An expansion valve is an important component in a refrigeration system and is typically mounted between the reservoir and the evaporator. The expansion valve enables the medium-temperature high-pressure liquid refrigerant to be low-temperature low-pressure wet steam through throttling, then the refrigerant absorbs heat in the evaporator to achieve the refrigeration effect, the expansion valve controls the flow of the valve through the change of the superheat degree of the tail end of the evaporator, and the phenomena of insufficient utilization of the area of the evaporator and cylinder knocking are prevented.
The expansion valve is also an important part in the automobile air-conditioning refrigeration system, is generally arranged between the liquid storage cylinder and the evaporator, and controls the flow of the valve through the change of the superheat degree of the tail end of the evaporator so as to prevent the phenomena of insufficient utilization of the area of the evaporator and cylinder knocking.
If the expansion valve is blocked, the evaporator is easy to freeze after the air conditioner is opened for a long time, and once the evaporator is frozen, the air conditioner becomes cool air but has no air volume. In addition, the blockage fault of the thermostatic expansion valve is a common fault of the expansion valve, the blockage reason of the expansion valve comprises a dirty blockage situation and an ice blockage situation, the dirty blockage situation mainly causes impurities such as welding slag, copper scraps, iron scraps, fibers and the like in the system, and the ice blockage situation causes excessive moisture and humidity in the system. Because the space of the working environment of the expansion valve is small, when the expansion valve breaks down, the disassembly and maintenance difficulty is high, and the cost is high. Meanwhile, the refrigerant in the valve body of the expansion valve has the problem of low circulation efficiency.
Disclosure of Invention
The invention aims to provide an automobile expansion valve and a processing technology thereof, wherein the automobile expansion valve has the advantages of convenience in later maintenance, better cost control and higher dredging efficiency; the processing technology for the automobile expansion valve enables the circulation efficiency of the internal channel of the valve body to be high, and has the advantages of short installation time, convenience in assembly and high processing efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: an automobile expansion valve comprises a valve body, a first port arranged at the side part of the valve body, and a second port arranged at the lower part of the valve body, wherein an inner hole of the first port extends towards the inside of the valve body, a first channel is formed in the valve body, and a first clamping part is arranged at the outer end of the first channel; an inner hole of the second port extends towards the interior of the valve body, a second channel is formed in the valve body, and a second clamping part is arranged at the outer end of the second channel; a filtering device is clamped between the first clamping part and the second clamping part; the side part of the valve body is provided with an accommodating cavity, and the filtering device is positioned in the accommodating cavity; the inner holes of the first channel, the first clamping part, the filtering device, the second clamping part and the second channel are communicated in series; a valve rod is vertically and directionally arranged in the middle of the valve body, the upper end of the valve rod is connected with a diaphragm, the diaphragm is positioned in a shell, and the shell is arranged at the upper end of the valve body; the upper end of the shell is connected with a temperature sensing bulb, and the bottom of the temperature sensing bulb is abutted against the input section of the evaporator; the lower end of the valve rod is connected with a steel ball, the bottom of the steel ball is padded with a return spring, and the bottom of the return spring is supported by a screw sleeve; the heating device comprises an annular shell, a heating wire, a power interface and a temperature sensor, wherein the annular shell is provided with a cavity, the heating wire is arranged in the cavity in a curved manner and is connected with the power interface, and a temperature control switch is arranged in the power interface; the temperature sensor is arranged on the annular shell and is in communication connection with the temperature control switch.
The first clamping portion is provided with a square shell, a first connecting port is arranged on the side portion of the square shell, a second connecting port is arranged on the lower portion of the square shell and communicated with the first connecting port, the first connecting port is communicated with an outer port of the first channel, a rubber pad covers the upper end of the second connecting port, and the second connecting port is sealed by the rubber pad.
The second clamping portion is consistent with the first clamping portion in structure, and the second clamping portion is located under the first clamping portion.
An arc-shaped groove is formed in the end, corresponding to the steel ball, of the second channel, and the arc-shaped groove is matched with the outline of the steel ball.
The first passageway with two port departments that the valve rod is criss-cross all are equipped with the sealing washer, the valve rod runs through in the sealing washer middle part, and sliding connection.
The filter device comprises a cylindrical shell, conical ends are arranged on two sides of the cylindrical shell, the cylindrical shell is provided with an inner cavity, a drying agent is filled in the inner cavity, and filter screens are arranged on two sides of the drying agent.
A processing technology for an automobile expansion valve comprises the following steps:
1) valve body processing
a. Casting a main shell of the valve body, and polishing the outer surface of the valve body;
b. carrying out edge angle grinding treatment on the first channel and the second channel in the valve body, and polishing;
c. processing connecting threads on the first port and the second port;
2) diversion mechanism installation
a. The valve body is sequentially connected with a valve rod, a diaphragm, a shell, a temperature sensing bulb, an evaporator input section and other components to form a working passage;
b. install first joint portion and second joint portion in one side of valve body, and block into filter equipment between the two to externally install end cover.
c. And a heating device is arranged on the other side of the valve body, and the outer surface of the heating device is attached to the outer surface of the valve body.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the arrangement of the automobile expansion valve, when the condition of ice blockage occurs on the valve body, the temperature can be lowered to the freezing point, the signal is sensed through the temperature sensor and transmitted to the temperature switch, the power supply interface is electrified, and then the frost is automatically melted under the action of the heating wire, so that the trouble that the problem can be solved only by disassembling the valve body is saved, and the dredging efficiency is high; carry out impurity filtering's processing and the drying process of moisture to the refrigerant through filter equipment, avoid the emergence of "dirty stifled" and "ice stifled" two kinds of circumstances simultaneously, even break down, also can solve through changing filter equipment, avoid only can dismantling the condition that could handle with the valve body, the maintenance cost is low.
2. According to the processing technology of the automobile expansion valve, the first channel and the second channel are subjected to edge and corner grinding treatment and polishing and grinding treatment, so that the circulation efficiency in the valve body is higher, and the residual of stains can be avoided, so that the formation of dirty blockage is caused.
Drawings
FIG. 1 is a schematic view of an expansion valve of an automobile according to the present invention;
FIG. 2 is a schematic view of a first clamping portion shown in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the connection between the first clamping portion and the filtering device of FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the filter apparatus of FIG. 1 according to the present invention;
FIG. 5 is a schematic structural view of the heating apparatus of FIG. 1 according to the present invention;
in the figure: 1-a valve body, 2-a first port, 3-a second port, 4-a first channel, 5-a first clamping part, 51-a square shell, 52-a first connecting port, 53-a second connecting port, 54-a rubber pad, 6-a second channel, 7-a second clamping part, 8-a filtering device, 81-a cylindrical shell, 82-a conical end, 83-a filtering screen, 84-a drying agent, 9-a valve rod, 10-a diaphragm, 11-a shell, 12-a temperature sensing bag, 13-an evaporator input section, 14-a steel ball, 15-an arc groove, 16-a sealing ring, 17-a heating device, 171-an annular shell, 172-a heating wire, 173-a power supply interface and 174-a temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to the attached drawings, the automobile expansion valve comprises a valve body 1, a first port 2 arranged at the side part of the valve body 1, and a second port 3 arranged at the lower part of the valve body 1, wherein an inner hole of the first port 2 extends towards the inside of the valve body 1, a first channel 4 is formed in the valve body 1, and a first clamping part 5 is arranged at the outer end of the first channel 4; an inner hole of the second port 3 extends towards the interior of the valve body 1, a second channel 6 is formed in the valve body 1, and a second clamping part 7 is arranged at the outer end of the second channel 6; a filtering device 8 is clamped between the first clamping part 5 and the second clamping part 7; the side part of the valve body 1 is provided with an accommodating cavity, and the filter device 8 is positioned in the accommodating cavity; the inner holes of the first channel 4, the first clamping part 5, the filtering device 8, the second clamping part 7 and the second channel 6 are communicated in series; a valve rod 9 is vertically arranged in the middle of the valve body 1 in a guiding manner, the upper end of the valve rod 9 is connected with a diaphragm 10, the diaphragm 10 is positioned in a shell 11, and the shell 11 is arranged at the upper end of the valve body 1; the upper end of the shell 11 is connected with a temperature sensing bulb 12, and the bottom of the temperature sensing bulb 12 is abutted against the evaporator input section 13; the lower end of the valve rod 9 is connected with a steel ball 14, the bottom of the steel ball 14 is padded with a return spring, and the bottom of the return spring is supported by a screw sleeve; the first port 2 is sleeved with a heating device 17, the heating device 17 comprises an annular shell 171, a heating wire 172, a power interface 173 and a temperature sensor 174, wherein the annular shell 171 has a cavity, the heating wire 172 is arranged in the cavity in a curved manner, the heating wire 172 is connected with the power interface 173, and a temperature control switch is arranged inside the power interface 173; the temperature sensor 174 is arranged on the annular shell 171 and is in communication connection with the temperature control switch, when the condition of ice blockage occurs on the valve body 1, the temperature can be lowered to the freezing point, the signal is sensed by the temperature sensor 174 and transmitted to the temperature switch, the power interface 173 is electrified, and then the frost is melted under the action of the heating wire 172.
The first clamping part 5 is provided with a square shell 51, a first connecting port 52 is arranged on the side of the square shell 51, a second connecting port 53 is arranged on the lower portion of the square shell 51, the second connecting port 53 is communicated with the first connecting port 52, the first connecting port 52 is communicated with an outer port of the first channel 4, a rubber pad 54 covers the upper end of the second connecting port 53, the rubber pad 54 seals the second connecting port 53, when the filtering device 8 is connected, the conical end 82 is inserted into an inner cavity of the square shell 51, penetrates through the rubber pad 54 and is communicated with the first connecting port 52, and after the conical end 82 is pulled out, the rubber pad 54 can be automatically closed to prevent refrigerant leakage.
The second clamping portion 7 is consistent with the first clamping portion 5 in structure, the second clamping portion 7 is located under the first clamping portion 5, firstly, the conical end 82 on the upper portion of the filtering device 8 is inserted into the first clamping portion 5, then, the conical end 82 on the lower portion of the filtering device 8 is inserted into the second clamping portion 7, so that the first clamping portion 5 is communicated with the second clamping portion 7, meanwhile, the filtering device 8 is used for conducting impurity filtering processing and moisture drying processing on a refrigerant, and the occurrence of two conditions of 'dirty blocking' and 'ice blocking' is avoided.
An arc-shaped groove 15 is formed in a port, corresponding to the steel ball 14, of the second channel 6, the arc-shaped groove 15 is matched with the outline of the steel ball 14, when the steel ball 14 is close to the arc-shaped groove 15, the refrigerant channel is small, when the steel ball 14 is matched with the arc-shaped groove 15, the refrigerant channel is closed, otherwise, the refrigerant channel is large, and the flow rate is increased accordingly.
First passageway 4 with two crisscross ports department of valve rod 9 all is equipped with sealing washer 16, valve rod 9 runs through in the middle part of sealing washer 16, and sliding connection prevents that the refrigerant from in clearance department infiltration.
The filtering device 8 comprises a cylindrical shell 81, conical ends 82 are arranged on two sides of the cylindrical shell 81, the cylindrical shell 81 is provided with an inner cavity, a drying agent 84 is filled in the inner cavity, filter screens 83 are arranged on two sides of the drying agent, drying treatment of moisture and humidity is carried out on a refrigerant through the drying agent 84, the ice blockage situation is avoided, impurities in the refrigerant are treated through the filter screens 83, and meanwhile, the dirty blockage situation is avoided.
A processing technology for an automobile expansion valve comprises the following steps:
1) valve body processing
a. Casting a main shell of the valve body, and polishing the outer surface of the valve body;
b. grinding edges and corners of the first channel 4 and the second channel 6 in the valve body, and polishing;
c. processing connecting threads on the first port 2 and the second port 3;
2) diversion mechanism installation
a. The valve body 1 is sequentially connected with a valve rod 9, a diaphragm 10, a shell 11, a temperature sensing bulb 12, an evaporator input section 13 and the like to form a working passage;
b. a first clamping part 5 and a second clamping part 7 are installed on one side of the valve body 1, a filtering device 8 is clamped between the first clamping part and the second clamping part, and a sealing end cover is installed on the outer side.
c. And a heating device 17 is arranged on the other side of the valve body 1, and the outer surface of the heating device 17 is attached to the outer surface of the valve body 1.
All parts used in the application document are standard parts, the specific connection mode of all parts adopts conventional means such as mature bolts, welding and the like in the prior art, machinery, parts and electrical equipment adopt conventional models in the prior art, circuit connection adopts the conventional connection mode in the prior art, and detailed description is not given here.
According to the automobile expansion valve, when the condition of ice blockage occurs on the valve body 1, the temperature can be lowered to the freezing point, the signal is sensed through the temperature sensor 174 and is transmitted to the temperature switch, the power interface 173 is electrified, and then the frost is automatically melted under the action of the heating wire 172, so that the trouble that the problem can be solved only by disassembling the valve body 1 is eliminated, and the dredging efficiency is high; carry out impurity filtering's processing and the drying process of moisture to the refrigerant through filter equipment 8, avoided the emergence of "dirty stifled" and "ice stifled" two kinds of circumstances simultaneously, even break down, also can solve through changing filter equipment 8, avoid only dismantling the condition that could handle with valve body 1, the maintenance cost is low.
According to the processing technology of the automobile expansion valve, the first channel 4 and the second channel 6 are subjected to edge and corner grinding treatment and polishing and grinding treatment, so that the circulation efficiency inside the valve body 1 is higher, and the formation of dirty blockage caused by stain residue can be avoided.
In summary, the following steps: according to the automobile expansion valve and the processing technology thereof, through the arrangement of the first channel 4, the second channel 6, the first clamping portion 5, the second clamping portion 7, the filtering device 8 and the heating device 17, the problems that the space under the working environment of the expansion valve is small, when the expansion valve breaks down, the disassembly and maintenance difficulty is large, the cost is high, and the circulation efficiency of a refrigerant in the valve body is low are solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an automobile expansion valve, includes valve body (1), first port (2) that set up in valve body (1) lateral part, and second port (3) that set up in valve body (1) lower part, its characterized in that: an inner hole of the first port (2) extends towards the interior of the valve body (1), a first channel (4) is formed in the valve body (1), and a first clamping part (5) is arranged at the outer end of the first channel (4); an inner hole of the second port (3) extends towards the interior of the valve body (1), a second channel (6) is formed in the valve body (1), and a second clamping part (7) is arranged at the outer end of the second channel (6); a filtering device (8) is clamped between the first clamping part (5) and the second clamping part (7); an accommodating cavity is formed in the side of the valve body (1), and the filtering device (8) is located in the accommodating cavity; the inner holes of the first channel (4), the first clamping part (5), the filtering device (8), the second clamping part (7) and the second channel (6) are communicated in series in sequence; a valve rod (9) is vertically arranged in the middle of the valve body (1) in a guiding mode, the upper end of the valve rod (9) is connected with a diaphragm (10), the diaphragm (10) is located in a shell (11), and the shell (11) is arranged at the upper end of the valve body (1); the upper end of the shell (11) is connected with a temperature sensing bulb (12), and the bottom of the temperature sensing bulb (12) is abutted against the input section (13) of the evaporator; the lower end of the valve rod (9) is connected with a steel ball (14), a return spring is arranged at the bottom of the steel ball (14) in a cushioning mode, and the bottom of the return spring is supported through a screw sleeve; the heating device (17) is sleeved on the first port (2), the heating device (17) comprises an annular shell (171), a heating wire (172), a power interface (173) and a temperature sensor (174), wherein the annular shell (171) is provided with a cavity, the heating wire (172) is arranged in the cavity in a curved manner, the heating wire (172) is connected with the power interface (173), and a temperature control switch is arranged in the power interface (173); the temperature sensor (174) is arranged on the annular shell (171) and is in communication connection with the temperature control switch.
2. An automotive expansion valve according to claim 1, characterized in that: the first clamping portion (5) is provided with a square shell (51), a first connecting port (52) is arranged on the side portion of the square shell (51), a second connecting port (53) is arranged on the lower portion of the square shell (51), the second connecting port (53) is communicated with the first connecting port (52), the first connecting port (52) is communicated with an outer port of the first channel (4), a rubber pad (54) covers the upper end of the second connecting port (53), and the second connecting port (53) is sealed by the rubber pad (54).
3. An automotive expansion valve according to claim 1, characterized in that: the second clamping portion (7) is consistent with the first clamping portion (5) in structure, and the second clamping portion (7) is located under the first clamping portion (5).
4. An automotive expansion valve according to claim 1, characterized in that: an arc-shaped groove (15) is formed in the port, corresponding to the steel ball (14), of the second channel (6), and the arc-shaped groove (15) is matched with the outline of the steel ball (14).
5. An automotive expansion valve according to claim 1, characterized in that: first passageway (4) with two port departments that valve rod (9) are criss-cross all are equipped with sealing washer (16), valve rod (9) run through in sealing washer (16) middle part, and sliding connection.
6. An automotive expansion valve according to claim 1, characterized in that: the filter device (8) comprises a cylindrical housing (81), wherein conical ends (82) are arranged on two sides of the cylindrical housing (81), wherein the cylindrical housing (81) is provided with an inner cavity which is filled with a drying agent (84), and filter screens (83) are arranged on two sides of the drying agent.
7. A processing technology for an automobile expansion valve is characterized by comprising the following steps:
1) valve body processing
a. Casting a main shell of the valve body, and polishing the outer surface of the valve body;
b. the first channel (4) and the second channel (6) in the valve body are subjected to edge angle grinding treatment and polished;
c. processing connecting threads on the first port (2) and the second port (3);
2) diversion mechanism installation
a. The valve body (1) is sequentially connected with a valve rod (9), a diaphragm (10), a shell (11), a temperature sensing bulb (12), an evaporator input section (13) and the like to form a working passage;
b. a first clamping portion (5) and a second clamping portion (7) are installed on one side of the valve body (1), a filtering device (8) is clamped between the first clamping portion and the second clamping portion, and a sealing end cover is installed on the outer portion of the valve body.
c. And a heating device (17) is arranged on the other side of the valve body (1), and the outer surface of the heating device (17) is tightly attached to the outer surface of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521733.5A CN111637234B (en) | 2020-06-10 | 2020-06-10 | Automobile expansion valve and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521733.5A CN111637234B (en) | 2020-06-10 | 2020-06-10 | Automobile expansion valve and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111637234A true CN111637234A (en) | 2020-09-08 |
| CN111637234B CN111637234B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010521733.5A Active CN111637234B (en) | 2020-06-10 | 2020-06-10 | Automobile expansion valve and processing technology thereof |
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| Country | Link |
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| CN (1) | CN111637234B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975495Y (en) * | 2006-08-29 | 2007-11-14 | 浙江春晖智能控制股份有限公司 | Second throttle bidirectional heat expansion valve with filter structure |
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| CN108465291A (en) * | 2018-07-06 | 2018-08-31 | 合肥中安机械电器有限公司 | A kind of general purpose filter of refrigeration equipment |
| CN208041158U (en) * | 2018-04-13 | 2018-11-02 | 浙江博威汽车空调有限公司 | Low-noise heating power expansion valve used for automobile air conditioning |
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| CN200975495Y (en) * | 2006-08-29 | 2007-11-14 | 浙江春晖智能控制股份有限公司 | Second throttle bidirectional heat expansion valve with filter structure |
| CN101398241A (en) * | 2007-09-26 | 2009-04-01 | 海尔集团公司 | Drying filter for cooling cycle system of refrigerator |
| CN102102923A (en) * | 2009-12-22 | 2011-06-22 | 株式会社不二工机 | Expansion valve |
| CN102563988A (en) * | 2012-03-12 | 2012-07-11 | 太仓市弧螺机电有限公司 | High-efficiency thermoexpension valve |
| CN105114748A (en) * | 2015-09-15 | 2015-12-02 | 成都来宝石油设备有限公司 | Attemperator for preventing petroleum pipeline congelation |
| CN206583144U (en) * | 2017-01-11 | 2017-10-24 | 浙江敏特汽车空调有限公司 | A kind of anti-clogging expansion valve |
| CN206989512U (en) * | 2017-06-07 | 2018-02-09 | 新昌县四通机电有限公司 | A kind of expansion valve component |
| CN208041158U (en) * | 2018-04-13 | 2018-11-02 | 浙江博威汽车空调有限公司 | Low-noise heating power expansion valve used for automobile air conditioning |
| CN108465291A (en) * | 2018-07-06 | 2018-08-31 | 合肥中安机械电器有限公司 | A kind of general purpose filter of refrigeration equipment |
Also Published As
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| CN111637234B (en) | 2022-04-15 |
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Denomination of invention: A kind of automobile expansion valve and its processing technology Effective date of registration: 20221104 Granted publication date: 20220415 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG BOWEI AUTO AIR-CONDITIONER Co.,Ltd. Registration number: Y2022330002912 |