Supercharged multifunctional joint device

Abstract

The utility model discloses a supercharged multifunctional connector device, and relates to the field of crankcase ventilation systems. According to the technical scheme, the device is characterized by comprising a three-way venturi tube, the three-way venturi tube comprises a first air inlet pipe, a second air inlet pipe and an inner air outlet pipe which are connected in a three-way mode, a contraction air channel is formed in the first air inlet pipe, and a diffusion air channel is formed in the inner air outlet pipe; the outer air outlet pipe is connected with the three-way venturi pipe, and the inner air outlet pipe is located on the inner side of the outer air outlet pipe; and the one or more functional modules are arranged on the outer air outlet pipe. According to the utility model, the outer air outlet pipe is arranged on the outer side of the inner air outlet pipe, and then the outer air outlet pipe is used for arranging the functional module, so that the integration of the three-way venturi pipe and the functional module can be realized on the joint device, and the number of joints in the internal pipeline of the automobile can be optimized.

Description

Technical Field

[0001] The utility model relates to the field of crankcase ventilation systems, and more specifically, to a pressurized multifunctional joint device. Background Art

[0002] When the engine is working, the high-pressure combustible mixture and burned gas in the combustion chamber will more or less leak into the crankcase through the gap between the piston group and the cylinder, causing blowby. The components of blowby are unburned fuel gas, water vapor and exhaust gas, which will dilute the engine oil, reduce the performance of the engine oil, and accelerate the oxidation and deterioration of the engine oil. Water vapor condenses in the engine oil, forming sludge and blocking the oil circuit. The acidic gas in the exhaust gas mixes into the lubrication system, which will cause corrosion and accelerated wear of engine parts. Blowby will also cause the crankcase pressure to be too high and destroy the crankcase seal, causing the oil to leak and lose. In order to prevent the crankcase pressure from being too high, extend the service life of the engine oil, reduce the wear and corrosion of parts, and prevent engine oil leakage, crankcase ventilation must be implemented. Crankcase ventilation includes natural ventilation and forced ventilation. At present, vehicle engines often use forced crankcase ventilation, also known as PCV system.

[0003] The existing Chinese patent with the authorization announcement number CN213270014U discloses a non-detachable Venturi valve and a crankcase ventilation system using the same, wherein the outlet pipe of the Venturi valve is connected to the upstream side of the supercharger, and the first intake pipe thereof is connected to the downstream side of the supercharger; the crankcase is connected to the second intake pipe of the Venturi valve after passing through the oil-gas separator and the pressure control valve. That is, the suction effect is improved by the Venturi valve.

[0004] In addition, quick-connect connectors are often used in internal automotive pipe connections. In order to ensure that the quick-connect connector can be diagnosed online when it falls off or disconnects, it is necessary to send a signal that can be recognized by the engine ECU system for diagnosis when the quick-connect connector falls off or disconnects.

[0005] Moreover, in winter, when the temperature is below -20℃ and the humidity is high, when the hot oil vapor in the crankcase ventilation pipe meets the cold air in the intake pipe, ice will form at the intersection and block the crankcase ventilation pipe. In serious cases, the oil and some water vapor in the crankcase cannot be discharged, which reduces the efficiency of the engine intake system and increases fuel consumption. When the ice slag or ice cubes melt and flow into the crankcase, the engine oil deteriorates and emulsifies, and the acid gas enters the lubrication system, causing corrosion of parts and accelerated wear.

[0006] In order to solve the problem of icing of the crankcase ventilation pipe, a commonly used solution at present is to add a heating device between the crankcase ventilation pipe and the intake pipe to avoid icing by heating.

[0007] The Venturi valve in the above patent cannot realize the function of power-on diagnosis or heating. If the power-on diagnosis or heating function is to be realized, it is necessary to configure connectors with power-on diagnosis function or heating function respectively, which will result in more pipe connectors inside the car.

[0008] There are also connectors with integrated power-on diagnostic function and heating function in the prior art, but such integrated connectors cannot or are difficult to be combined with the Venturi valve. In other words, how to integrate the multifunctional connector with the Venturi valve is a problem that needs to be solved urgently. Utility Model Content

[0009] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pressurized multifunctional joint device, which arranges an outgoing air pipe on the outside of an inner air outlet pipe, and then uses the outgoing air pipe to arrange a functional module, so that the three-way venturi tube and the functional module can be integrated on the joint device, thereby optimizing the number of joints in the internal pipelines of the automobile.

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] A pressurized multifunctional joint device, comprising:

[0012] A three-way venturi tube, the three-way venturi tube comprising a first air inlet pipe, a second air inlet pipe and an inner air outlet pipe connected in a three-way manner, the first air inlet pipe is provided with a contraction air passage, and the inner air outlet pipe is provided with a diffusion air passage;

[0013] an outgoing air pipe, the outgoing air pipe is connected to a three-way venturi tube, and the inner air pipe is located inside the outgoing air pipe; and

[0014] One or more functional modules are arranged on the outgoing air pipe.

[0015] Furthermore, the second air inlet pipe and the inner air outlet pipe are both located on the inner side of the outer air outlet pipe.

[0016] Furthermore, the closed end of the outgoing air pipe is connected to the outer side wall of the first inlet pipe, the inlet end of the second inlet pipe is connected to the inner side wall of the outgoing air pipe, and the side wall of the outgoing air pipe is provided with an inlet hole connected to the second inlet pipe.

[0017] Furthermore, an outer side wall of the outgoing air pipe is provided with an outer air inlet pipe connected with the air inlet hole.

[0018] Furthermore, the outer side wall of the outer air intake pipe is provided with a sensor mounting seat which is in communication with the outer air intake pipe.

[0019] Furthermore, the functional module includes a heating module arranged on the outgoing air pipe, and the inner side wall of the outgoing air pipe is provided with a heating pipe cooperating with the heating module.

[0020] Furthermore, the outer side wall of the outgoing air pipe is provided with a quick-insert female connector; and the functional module includes a power-on diagnostic module provided on the quick-insert female connector.

[0021] Furthermore, the power-on diagnostic module includes a conductive sheet; the conductive sheet includes a middle portion, and support portions are symmetrically arranged on both sides of the middle portion, and an elastic contact portion and a limiting portion are formed on the support portion by bending, and the free end of the elastic contact portion is in contact with the bottom wall of the limiting portion.

[0022] Furthermore, the outer side wall of the quick-insert female connector is provided with a diagnostic accommodating cavity for accommodating the power-on diagnostic module; the power-on diagnostic module further comprises a movable column and a sealing ring; the inner bottom wall of the diagnostic accommodating cavity is provided with a positioning sleeve cooperating with the movable column, and the radial inner end of the movable column extends into the inner side of the quick-insert female connector; the sealing ring is provided between the movable column and the positioning sleeve;

[0023] The side wall of the movable column extends to form a limit plate in contact with the top wall of the positioning sleeve; the conductive sheet is arranged on the top wall of the limit plate, and the inner bottom wall of the diagnosis accommodating cavity is provided with a positioning slot plate cooperating with the conductive sheet.

[0024] Furthermore, the power-on diagnostic module also includes a diagnostic end cover connected to the diagnostic accommodating cavity; two electrodes and a circuit board connected between the two electrodes are arranged in the diagnostic end cover; and a resistor is arranged on the circuit board.

[0025] In summary, the utility model has the following beneficial effects:

[0026] 1. An outgoing air pipe is arranged outside the inner air outlet pipe, and then the functional module is arranged by using the outgoing air pipe, so that the three-way venturi pipe and the functional module can be integrated on the joint device, thereby optimizing the number of joints in the internal pipeline of the automobile;

[0027] 2. A limit plate is arranged on the movable column, and the limit plate is used to contact with the positioning sleeve to play a limiting role. At the same time, the limit plate is used to carry the conductive sheet, thereby improving the stability of the power-on diagnostic module;

[0028] 3. The free end of the elastic contact part is limited by a limiting part, which can increase the elastic deformation capacity of the elastic contact part, improve the stability of the contact between the elastic contact part and the electrode, and extend the service life of the conductive sheet and the stability of the power-on diagnostic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The structure of the pressurized multifunctional joint device in the embodiment is shown in FIG. Figure 1 ;

[0030] Figure 2 The structure of the pressurized multifunctional joint device in the embodiment is shown in FIG. Figure 2 ;

[0031] Figure 3 The structure of the pressurized multifunctional joint device in the embodiment is shown in FIG. Figure 3 ;

[0032] Figure 4 The structure of the pressurized multifunctional joint device in the embodiment is shown in FIG. Figure 4 ;

[0033] Figure 5 The structure of the pressurized multifunctional joint device in the embodiment is shown in FIG. Figure 5 ;

[0034] Figure 6 is a schematic diagram of the structure of the conductive sheet in the embodiment;

[0035] Figure 7 This is a schematic diagram of the structure of the diagnostic end cover in the embodiment;

[0036] Figure 8 Schematic diagram of the structure of the circuit board and electrodes in the embodiment.

[0037] In the figure: 11, first air inlet pipe; 12, second air inlet pipe; 13, inner air outlet pipe; 14, outer air outlet pipe; 15, outer air inlet pipe; 16, quick-connect female connector; 17, heating accommodating chamber; 18, diagnostic accommodating chamber; 181, positioning sleeve; 182, positioning slot plate; 19, sensor mounting seat; 2, heating tube; 3, heating module; 41, movable column; 411, limit plate; 42, conductive sheet; 421, middle part; 422, supporting part; 423, elastic contact part; 424, limit part; 43, spring; 44, sealing ring; 45, diagnostic end cover; 46, electrode; 47, circuit board; 48, resistor. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention. Example

[0040] A pressurized multifunctional joint device, referring to Figures 1 to 8, which includes a three-way venturi tube, an outgoing air pipe 14 and a functional module; specifically, the three-way venturi tube includes a first air inlet pipe 11, a second air inlet pipe 12 and an inner air outlet pipe 13 connected in a three-way manner, a contraction air passage is arranged in the first air inlet pipe 11, and a diffusion air passage is arranged in the inner air outlet pipe 13; the outgoing air pipe 14 is connected to the three-way venturi tube, and the inner air outlet pipe 13 is located on the inner side of the outgoing air pipe 14; the number of the functional modules is one or more, and the functional modules are arranged on the outgoing air pipe 14.

[0041] Reference Figures 1 to 8 In this embodiment, an outgoing air pipe 14 is arranged on the outside of the inner air outlet pipe 13, and then the outgoing air pipe 14 is used to arrange the functional module, so that the three-way venturi tube and the functional module can be integrated on the joint device, thereby optimizing the number of joints in the internal pipeline of the automobile; the functional module includes a heating module and a power-on diagnostic module. In this embodiment, a heating module 3 and a power-on diagnostic module are respectively arranged on the outgoing air pipe 14, then the joint device in this embodiment can simultaneously realize the functions of intake boost, heating and power-on diagnosis; of course, in other optional embodiments, only a heating module or a power-on diagnostic module may be used on the outgoing air pipe, and the functional module may also use other modules, which is not limited here.

[0042] Reference Figures 1 to 8 Preferably, in the present embodiment, the second air inlet pipe 12 and the inner air outlet pipe 13 are both located on the inner side of the outgoing air pipe 14, which not only facilitates the connection between the outgoing air pipe and the three-way venturi tube, but also improves the heating effect; specifically, in the present embodiment, the outgoing air pipe 14 includes a closed end and an air outlet end, and the closed end of the outgoing air pipe 14 is connected to the outer side wall of the first air inlet pipe 11; wherein the air inlet end of the first air inlet pipe 11 is located on the outer side of the outgoing air pipe 14, and the air outlet end of the first air inlet pipe 11 is located on the inner side of the outgoing air pipe 14; the air inlet end of the second air inlet pipe 12 is connected to the inner side wall of the outgoing air pipe 14, and the side wall of the outgoing air pipe 14 is provided with a An air inlet hole connected to the air pipe 12; preferably, the outer side wall of the outgoing air pipe 14 is provided with an outer air inlet pipe 15 connected to the air inlet hole; that is, the outer air inlet pipe 15 is connected to the second air inlet pipe 12; in this embodiment, the first air inlet pipe 11, the outer air inlet pipe 15 and the outgoing air pipe 14 are respectively used to connect the pipelines, wherein the first air inlet pipe 11 and the outgoing air pipe 14 are respectively connected to the two sides of the supercharger, and the outer air inlet pipe 15 is connected to the crankcase; the supercharged air enters from the first air inlet pipe 11, passes through the contraction air duct and the diffusion air duct in sequence, and is discharged from the outgoing air pipe 14, and the outer air inlet pipe 15 is connected to the second air inlet pipe 12, thereby increasing the suction effect on the crankcase.

[0043] Reference Figures 1 to 8Preferably, in this embodiment, the first air inlet pipe 11, the second air inlet pipe 12, the inner air outlet pipe 13, the outer air outlet pipe 14 and the outer air inlet pipe 15 are integrally formed, so as to reduce the number of parts, facilitate processing, improve structural strength and stability, and extend the service life; preferably, the outer side wall of the outer air inlet pipe 15 is provided with a sensor mounting seat 19 connected thereto; a sensor is installed in the sensor mounting seat 19, so as to monitor the air pressure in the outer air inlet pipe 15.

[0044] Reference Figures 1 to 8 Specifically, in this embodiment, the outer side wall of the outgoing air pipe 14 is respectively provided with a heating accommodating cavity 17 for carrying the heating module 3; the inner side wall of the outgoing air pipe 14 is provided with a heating tube 2, and the heat of the heating module 3 is transferred to the heating tube 2, thereby realizing the heating function; the heating module 3 belongs to the prior art, and the specific structure is not repeated here.

[0045] Reference Figures 1 to 8 Specifically, in this embodiment, the outer wall of the outgoing air pipe 14 is provided with a quick-insert female connector 16, and the outer wall of the quick-insert female connector 16 is provided with a diagnostic accommodating cavity 18 for carrying the power-on diagnostic module; the quick-insert male connector is sleeved on the outgoing air pipe 14 and then connected to the quick-insert female connector 16, and the power-on diagnostic module is used to detect whether the quick-insert male connector is detached, thereby realizing the power-on diagnostic function.

[0046] Reference Figures 1 to 8 Specifically, the power-on diagnostic module in this embodiment includes a movable column 41, a conductive sheet 42, a spring 43, a sealing ring 44, a diagnostic end cover 45, an electrode 46 and a circuit board 47; a resistor 48 is arranged on the circuit board 47, and two electrodes are arranged in the diagnostic end cover 45, and the two electrodes are respectively connected to the circuit board 47; in this embodiment, the circuit board 47 is used to carry the resistor, and then the circuit board 47 is embedded in the diagnostic end cover 45, and the circuit board 47 and the electrode 46 are fixed by welding, which can simplify the processing technology and reduce the processing difficulty.

[0047] Reference Figures 1 to 8Preferably, the inner bottom wall of the diagnostic accommodating chamber 18 is provided with a positioning sleeve 181 that cooperates with the movable column 41, and the movable column 41 is movably arranged in the positioning sleeve 181; the radial inner end of the movable column 41 extends into the inner side of the quick-insert female connector 16 for contacting the quick-insert male connector; the sealing ring 44 is arranged between the movable column 41 and the positioning sleeve 181, so as to improve the sealing effect; preferably, the side wall of the movable column 41 is provided with an annular groove that cooperates with the sealing ring 44; the side wall of the movable column 41 extends to form a limit plate 411 that contacts the top wall of the positioning sleeve 181, specifically, the movable column 41 is provided with a ring groove that cooperates with the sealing ring 44. It is said that two limit plates 411 are provided; the conductive sheet 42 is sleeved on the movable column 41, located on the top wall of the limit plate 411, and the inner bottom wall of the diagnostic accommodating cavity 18 is provided with a positioning slot plate 182 that cooperates with the conductive sheet 42; the inner side wall of the diagnostic accommodating cavity 18 is provided with four positioning slot plates 182, and the four positioning slot plates 182 cooperate with each other; wherein, the limit plate 411 is located between the two positioning slot plates 182, and the two ends of the conductive sheet 42 are respectively located between the two positioning slot plates 182; the use of the positioning slot plate 182 for limiting can improve the stability of the movable column 41 and the conductive sheet 42 during movement.

[0048] Reference Figures 1 to 8 In this embodiment, a limit plate 411 is provided on the movable column 41, and the limit plate 411 is utilized to contact with the positioning sleeve 181 to play a limiting role, and the limit plate 411 is utilized to support the conductive sheet 42, thereby improving the stability of the power-on diagnostic module; preferably, the inner bottom wall of the diagnostic accommodating cavity 18 is integrally formed with the positioning sleeve 181 and the positioning slot plate 182, which can reduce the number of parts and facilitate the assembly of the power-on diagnostic module.

[0049] Reference Figures 1 to 8 Preferably, in this embodiment, the conductive sheet 42 includes a middle portion 421, and a through hole cooperating with the movable column 41 is provided on the middle portion 421; support portions 422 are symmetrically provided on both sides of the middle portion 421, and the ends of the support portions 422 are bent to form elastic contact portions 423, and the side walls of the support portions 422 are bent to form two limiting portions 424, and the free ends of the elastic contact portions 423 are in contact with the bottom wall of the limiting portions 424; specifically, two limiting portions 424 are symmetrically provided on the support portion 422; the two elastic contact portions 423 are in contact with the two electrodes 46 respectively, so as to realize power supply; the elastic force of the elastic contact portion 423 makes its free end have a tendency to approach the bottom wall of the limiting portion 424; after the elastic contact portion 423 contacts the electrode 46, the free end of the elastic contact portion 423 will be away from the bottom wall of the limiting portion 424.

[0050] Reference Figures 1 to 8In this embodiment, a limiting portion 424 is used to limit the free end of the elastic contact portion 423, which can increase the elastic deformation capacity of the elastic contact portion 423, improve the stability of the contact between the elastic contact portion and the electrode, and extend the service life of the conductive sheet and the stability of the power-on diagnostic module.

Claims

1. A pressurized multifunctional joint device, characterized in that: include: A three-way venturi tube, the three-way venturi tube comprising a first air inlet pipe, a second air inlet pipe and an inner air outlet pipe connected in a three-way manner, the first air inlet pipe is provided with a contraction air passage, and the inner air outlet pipe is provided with a diffusion air passage; an outgoing air pipe, the outgoing air pipe is connected to a three-way venturi tube, and the inner air pipe is located inside the outgoing air pipe; and, One or more functional modules disposed on the outgoing air pipe; The functional module comprises a heating module arranged on the outgoing air pipe, and the inner side wall of the outgoing air pipe is provided with a heating pipe matched with the heating module.

2. A pressurized multifunctional joint device, characterized in that: include: A three-way venturi tube, the three-way venturi tube comprising a first air inlet pipe, a second air inlet pipe and an inner air outlet pipe connected in a three-way manner, the first air inlet pipe is provided with a contraction air passage, and the inner air outlet pipe is provided with a diffusion air passage; an outgoing air pipe, the outgoing air pipe is connected to a three-way venturi tube, and the inner air pipe is located inside the outgoing air pipe; and One or more functional modules disposed on the outgoing air pipe; The outer side wall of the outgoing air pipe is provided with a quick-insert female connector; the functional module includes a power-on diagnosis module provided on the quick-insert female connector; The power-on diagnostic module includes a conductive sheet; the conductive sheet includes a middle portion, and support portions are symmetrically arranged on both sides of the middle portion. An elastic contact portion and a limiting portion are formed on the support portion by bending, and the free end of the elastic contact portion contacts the bottom wall of the limiting portion.

3. A pressurized multifunctional joint device, characterized in that: include: A three-way venturi tube, the three-way venturi tube comprising a first air inlet pipe, a second air inlet pipe and an inner air outlet pipe connected in a three-way manner, the first air inlet pipe is provided with a contraction air passage, and the inner air outlet pipe is provided with a diffusion air passage; an outgoing air pipe, the outgoing air pipe is connected to a three-way venturi tube, and the inner air pipe is located inside the outgoing air pipe; and One or more functional modules disposed on the outgoing air pipe; The functional module comprises a heating module arranged on the outgoing air pipe, and the inner wall of the outgoing air pipe is provided with a heating pipe matched with the heating module; The outer side wall of the outgoing air pipe is provided with a quick-insert female connector; the functional module also includes a power-on diagnosis module provided on the quick-insert female connector; The power-on diagnostic module includes a conductive sheet; the conductive sheet includes a middle portion, and support portions are symmetrically arranged on both sides of the middle portion. An elastic contact portion and a limiting portion are formed on the support portion by bending, and the free end of the elastic contact portion contacts the bottom wall of the limiting portion.

4. The pressurized multifunctional joint device according to any one of claims 1 to 3, characterized in that: The second air inlet pipe and the inner air outlet pipe are both located on the inner side of the outer air outlet pipe.

5. The pressurized multifunctional connector device according to claim 4, characterized in that: The closed end of the outgoing air pipe is connected to the outer side wall of the first inlet pipe, the inlet end of the second inlet pipe is connected to the inner side wall of the outgoing air pipe, and the side wall of the outgoing air pipe is provided with an inlet hole connected to the second inlet pipe.

6. The pressurized multifunctional connector device according to claim 5, characterized in that: The outer side wall of the outgoing air pipe is provided with an outer air inlet pipe which is connected with the air inlet hole.

7. The pressurized multifunctional connector device according to claim 6, characterized in that: The outer side wall of the outer air intake pipe is provided with a sensor mounting seat which is in communication with the outer air intake pipe.

8. The pressurized multifunctional joint device according to claim 2 or 3, characterized in that: The outer side wall of the quick-insert female connector is provided with a diagnostic accommodation cavity for accommodating the power-on diagnostic module; the power-on diagnostic module further comprises a movable column and a sealing ring; the inner bottom wall of the diagnostic accommodation cavity is provided with a positioning sleeve that cooperates with the movable column, and the radial inner end of the movable column extends into the inner side of the quick-insert female connector; the sealing ring is provided between the movable column and the positioning sleeve; The side wall of the movable column extends to form a limit plate in contact with the top wall of the positioning sleeve; the conductive sheet is arranged on the top wall of the limit plate, and the inner bottom wall of the diagnosis accommodating cavity is provided with a positioning slot plate cooperating with the conductive sheet.

9. The pressurized multifunctional joint device according to claim 2 or 3, characterized in that: The power-on diagnosis module also includes a diagnosis end cover connected to the diagnosis accommodating cavity; two electrodes and a circuit board connected between the two electrodes are arranged in the diagnosis end cover; a resistor is arranged on the circuit board.

Images