Air volume adjusting device of constant-displacement air conditioner

Abstract

The utility model discloses an air volume adjusting device of a constant-displacement air conditioner, which relates to the technical field of air volume adjustment of air conditioners, and comprises a constant-displacement air inlet air conditioner, one end of the air inlet air conditioner is communicated with an air flow meter through a pipeline, and the other end of the air inlet air conditioner is communicated with a precision filter through a pipeline, adjustable electric valves are mounted on a pipeline between the air inlet air conditioner and the air flow meter and a pipeline between the air inlet air conditioner and the precision filter, and the other ends of the adjustable electric valves between the air inlet air conditioner and the air flow meter are connected with an air pump through pipelines; according to the utility model, a part of air is pumped out from the rear part of the system through the air pump and is injected into the pipeline between the air inlet air conditioner and the air flow meter, so that the purpose of increasing the air volume is achieved under the condition that the displacement of the air inlet air conditioner is not changed, and the air flow in the brake emission measuring instrument is controlled through the opening degree of the two adjustable electric valves.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning air volume regulation technical field, specifically a kind of air volume regulating device of fixed displacement air conditioner. BACKGROUND

[0002] Pollutants such as nitrogen oxides and particulate matter in automobile exhaust can cause serious harm to the respiratory system and cardiovascular system, increase the incidence of respiratory diseases and cardiovascular diseases, and have a greater impact on children, the elderly and people with respiratory diseases. Therefore, during the production process, the exhaust must meet the national standards. With the increasing control requirements for automobile emission pollutants, the Euro VII standard has been released, and the National VII standard will follow. The Euro VII standard first specifies the brake emission requirements.

[0003] However, in practice, the first special brake emission requirement needs to control the circulating air pressure, temperature, humidity, air volume and background concentration to meet the regulation particulate matter measurement. Most vehicles currently use fixed displacement air conditioners, but fixed displacement air conditioners cannot meet the circulating air pressure, temperature, humidity, air volume and background concentration specified in the National VII standard. Therefore, the cost of installing a variable displacement air conditioner is also high. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an air volume regulating device for a fixed displacement air conditioner. By adjusting the electrical valve and the air pump, some air is extracted from the rear of the system and sent to the brake emission measurement instrument. Without replacing the intake air conditioner, the air intake is increased, and the opening size can be accurately controlled by the adjustable electrical valve. The technical problems in the background technology are solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An air volume regulating device for a fixed displacement air conditioner includes a fixed displacement intake air conditioner. One end of the intake air conditioner is connected to an air flow meter through a pipeline, and the other end is connected to a precision filter through a pipeline. An adjustable electrical valve is installed on the pipeline between the intake air conditioner and the air flow meter, and another adjustable electrical valve is installed on the pipeline between the intake air conditioner and the precision filter. The other end of the adjustable electrical valve between the intake air conditioner and the air flow meter is connected to an air pump through a pipeline.

[0007] The adjustable electrical valve includes a valve body pipeline, a valve core is installed in the valve body pipeline, and both ends of the valve core extend to the outside of the valve body pipeline.

[0008] The upper part of the valve body pipeline is fixedly connected to a support seat, and the support seat is movably connected to an indicating runner that cooperates with the valve core. An indicating scale is also provided on the outside of the indicating runner.

[0009] As a further technical scheme of the utility model, the support seat comprises two rectangular hole plates arranged in parallel, and symmetric arc-shaped side plates are fixedly connected between the two rectangular hole plates, and each arc-shaped side plate is integrally provided with symmetric limiting baffle plates on the side surface.

[0010] As a further technical scheme of the utility model, the rectangular hole plate arranged at the bottom of the arc-shaped side plate is fixedly connected with the valve body pipeline, a servo motor is fixedly connected to the rectangular hole plate at the other end of the arc-shaped side plate, and a rectangular clamping block is integrally arranged at the end of the servo motor.

[0011] As a further technical scheme of the utility model, the indicating rotating wheel comprises a center rotating rod penetrating through the rectangular hole plate, and a rectangular clamping groove is arranged at each end of the center rotating rod, and a rectangular insertion block corresponding to the rectangular clamping groove is integrally arranged at the end of the valve core.

[0012] The rectangular insertion block on the valve core is inserted into the rectangular clamping groove at one end of the center rotating rod, and the rectangular clamping block at the end of the servo motor is inserted into the rectangular clamping groove at the other end of the center rotating rod.

[0013] As a further technical scheme of the utility model, the outer side of the center rotating rod is further provided with a rotating ring sleeved on the outer side of the arc-shaped side plate, the limiting baffle plates are respectively arranged on the two sides of the rotating ring, and the rotating ring is rotatably connected with the arc-shaped side plate.

[0014] As a further technical scheme of the utility model, the center rotating rod and the rotating ring are provided with symmetrically distributed support shafts, the support shafts are movably connected with the rectangular hole plates, and each support shaft is movably connected with an intermediate idler wheel on the outer side.

[0015] The outer side of the center rotating rod is integrally provided with an outer gear ring corresponding to the intermediate idler wheel, the inner side of the rotating ring is provided with an inner gear groove corresponding to the intermediate idler wheel, and the intermediate idler wheel is meshed with the outer gear ring and the inner gear groove.

[0016] As a further technical scheme of the utility model, the indicating scale comprises an annular scale sleeved on the outer side of the rotating ring, scale lines are marked on the outer side of the annular scale, symmetric side supports are integrally arranged at the bottom of the annular scale, and the side supports are fixedly connected with the two sides of the valve body pipeline.

[0017] As a further technical scheme of the utility model, the side surface of the rotating ring is fixedly connected with an indicating frame, the end of the indicating frame is fixedly connected with the rotating ring, and the indicating frame is attached to the side surface of the rotating ring.

[0018] As a further technical scheme of the utility model, the air flow meter is fixedly connected with an air filter at one end away from the air conditioner, the other end of the air filter is communicated with the brake emission measuring instrument through a pipeline, and the brake emission measuring instrument is communicated with the precision filter at one end away from the air conditioner.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] The utility model discloses, drive motor passes through the drive air pump rotation of end area belt, through the air pump in the rear of system draws out part of air and injects in the pipeline between air intake air conditioner and air flow meter, make it under the condition of not changing the displacement of air intake air conditioner, reach the purpose of increasing the air volume, and through the opening degree of adjustable electric valve of being equipped with two, control the gas flow in brake emission measuring instrument, cooperate air pump and drive motor again, make this equipment can satisfy new detection standard under the condition of not replacing air intake air conditioner, thereby reduce the cost of development.

[0021] The utility model discloses, servo motor drives the valve core synchronous rotation through the center rotating lever, thereby control the opening degree of valve core, and when the center rotating lever rotates, the middle idler wheel drives the synchronous rotation of rotary ring through the meshing of outer gear ring and inner tooth groove, thereby make the indication frame on rotary ring rotate along the outside of annular scale, indicate the opening of valve core inside at any time, be convenient for staff to check and record the opening of valve core in adjustable electric valve at any time.

[0022] The utility model discloses, rotate valve core through manual valve wheel, manually adjust the opening of valve core, and the rotation of valve core makes the center rotating lever rotate as well, thereby make indication frame slide on the outside of annular scale, and the scribe line carved on annular scale is convenient for experimental personnel to read the opening size quickly. ACCOUT OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of the utility model in use state.

[0024] Figure 2 It is another view drawing of the utility model in Figure 1 .

[0025] Figure 3 It is the three-dimensional structure schematic diagram of adjustable electric valve in the utility model.

[0026] Figure 4 It is the partial enlarged schematic diagram of the utility model in Figure 3 .

[0027] Figure 5 It is the position structure schematic diagram of support seat, indication rotating wheel and indication scale in the utility model.

[0028] Figure 6 is a bottom structure schematic view of the utility model Figure 5 .

[0029] Figure 7 is a partial structure schematic view of the utility model Figure 3 .

[0030] Figure 8 is a three-dimensional structure schematic view of the support seat of the utility model.

[0031] Figure 9 is a three-dimensional structure schematic view of the indicating runner of the utility model.

[0032] Figure 10 is a partial enlarged schematic view of the utility model Figure 9 .

[0033] Figure 11 is a three-dimensional structure schematic view of the indicating scale of the utility model.

[0034] Figure 12 is a principle view of the utility model.

[0035] In the drawings:

[0036] Detection bench-1, air inlet air conditioner-2, air flow meter-3, air filter-4, adjustable electric valve-5, valve body pipeline-51, manual valve wheel-52, valve core-53, support seat-54, rectangular hole plate-541, arc-shaped side plate-542, limiting baffle-543, indicating runner-55, center rotating rod-551, rectangular clamping groove-552, outer gear ring-553, rotating ring-554, indicating frame-555, inner tooth groove-556, support shaft-557, intermediate idler-558, indicating scale-56, annular scale-561, side support-562, servo motor-57, brake discharge measuring instrument-6, air pump-7, driving motor-8, precision filter-9. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0038] Please refer to Figures 1-12The utility model discloses a fixed displacement air conditioner's air volume regulating device, including fixed displacement's air intake air conditioner 2, air intake air conditioner 2 one end is communicated with air flowmeter 3 through pipeline, the other end is communicated with precision filter 9 through pipeline, wherein, the pipeline between air intake air conditioner 2 and air flowmeter 3 and the pipeline between air intake air conditioner 2 and precision filter 9 all are installed with adjustable electrical valve 5, wherein, adjustable electrical valve 5 other end through the pipeline of air intake air conditioner 2 and air flowmeter 3 is connected with air pump 7;

[0039] Adjustable electrical valve 5 includes valve body pipeline 51, installs valve core 53 in valve body pipeline 51, and both ends of valve core 53 all are through valve body pipeline 51 and extend to the outside of valve body pipeline 51;

[0040] Wherein, the upper fixed connection of valve body pipeline 51 has support seat 54, and support seat 54 is movably connected with the indicating runner 55 matched with valve core 53, and the outside of indicating runner 55 is also provided with indicating scale 56.

[0041] Through adopting the above technical scheme, drive motor 8 drives air pump 7 to rotate through the end of belt drive, and part of air is extracted in the pipeline between air intake air conditioner 2 and air flowmeter 3 through air pump 7 in the rear of system, so that the purpose of increasing air volume is achieved without changing the displacement of air intake air conditioner 2, and the opening size of the two adjustable electrical valves 5 is set, the gas flow in brake discharge measuring instrument 6 is controlled, and air pump 7 and drive motor 8 are matched, so that the equipment can meet the new detection standard without replacing air intake air conditioner 2, thereby reducing the development cost.

[0042] In the embodiment, the support seat 54 includes two parallelly arranged rectangular hole plates 541, and symmetric arc-shaped side plates 542 are fixedly connected between the two rectangular hole plates 541.

[0043] Further, the rectangular hole plate 541 arranged at the bottom of the arc-shaped side plate 542 is fixedly connected with the valve body pipeline 51, a servo motor 57 is fixedly connected on the rectangular hole plate 541 at the other end of the arc-shaped side plate 542, and a rectangular clamping block is integrally arranged at the end of the servo motor 57.

[0044] Further, the indicating runner 55 includes a center rotating rod 551 penetrating through the rectangular hole plate 541, rectangular clamping grooves 552 are arranged at both ends of the center rotating rod 551, and a rectangular clamping block corresponding to the rectangular clamping grooves 552 is integrally arranged at the end of the valve core 53.

[0045] The rectangular plug on the valve core 53 is inserted into the rectangular clamping groove 552 at one end of the central rotating rod 551, and the rectangular clamping block at the end of the servo motor 57 is inserted into the rectangular clamping groove 552 at the other end of the central rotating rod 551.

[0046] Specifically, the outer side of the central rotating rod 551 is further provided with a rotating ring 554 sleeved on the outer side of the arc-shaped side plate 542, and the limiting baffle 543 is symmetrically located on both sides of the rotating ring 554, and the rotating ring 554 is rotationally connected with the arc-shaped side plate 542.

[0047] Further, the central rotating rod 551 and the rotating ring 554 are provided with symmetrically distributed support shafts 557, which are movably connected with the rectangular hole plate 541, and each support shaft 557 is movably connected with an intermediate idler 558.

[0048] Specifically, the outer side of the central rotating rod 551 is integrally provided with an outer gear ring 553 corresponding to the intermediate idler 558, and the inner side of the rotating ring 554 is provided with an inner gear groove 556 corresponding to the intermediate idler 558, and the intermediate idler 558 is meshed with the outer gear ring 553 and the inner gear groove 556.

[0049] Further, the indicating scale 56 comprises an annular scale 561 sleeved on the outer side of the rotating ring 554, and the outer side of the annular scale 561 is provided with scale lines, and the bottom of the annular scale 561 is integrally provided with symmetrically distributed side supports 562, which are fixedly connected with the two sides of the valve body pipe 51.

[0050] Further, the side surface of the rotating ring 554 is fixedly connected with an indicating frame 555, the end of the indicating frame 555 is fixedly connected with the rotating ring 554, and the indicating frame 555 is attached to the side surface of the rotating ring 554.

[0051] Further, the air flow meter 3 is fixedly connected with an air filter 4 away from the air inlet air conditioner 2, the other end of the air filter 4 is communicated with a brake emission measuring instrument 6 through a pipeline, and the brake emission measuring instrument 6 is communicated with a precision filter 9 away from the air inlet air conditioner 2.

[0052] By adopting the above technical scheme, the servo motor 57 drives the valve core 53 to rotate synchronously through the central rotating rod 551, so as to control the opening size of the valve core 53, and when the central rotating rod 551 rotates, the intermediate idler 558 drives the rotating ring 554 to rotate synchronously through the meshing with the outer gear ring 553 and the inner gear groove 556, so that the indicating frame 555 on the rotating ring 554 rotates along the outer side of the annular scale 561, and the opening of the valve core 53 is indicated at any time, which is convenient for the staff to check and record the opening of the valve core 53 in the adjustable electric valve 5 at any time.

[0053] Further, the air intake air conditioner 2 is provided below the detection bench 1, and the air intake air conditioner 2, the air pump 7 and the brake emission measuring instrument 6 are respectively fixed above the detection bench 1, and the bottom of the air pump 7 is fixedly connected with the driving motor 8, wherein the driving motor 8 and the air pump 7 are in transmission connection.

[0054] Further, the end of the air pump 7 is fixedly connected with a driven pulley, the end of the driving motor 8 is fixedly connected with a driving pulley, and the outer sides of the driving pulley and the driven pulley are sleeved with a transmission belt, so that the driving pulley drives the driven pulley to rotate through the transmission belt, thereby driving the input shaft of the air pump 7 to rotate through the driving motor 8.

[0055] Further, the air intake air conditioner 2 is provided below the detection bench 1, and the air intake air conditioner 2, the air pump 7 and the brake emission measuring instrument 6 are respectively fixed above the detection bench 1, and the bottom of the air pump 7 is fixedly connected with the driving motor 8, wherein the driving motor 8 and the air pump 7 are in transmission connection.

[0056] Further, the detection bench 1 is further provided with a bench system PID, wherein the driving motor 8, the servo motor 57 and the brake emission measuring instrument 6 are respectively electrically connected with the bench system PID, and the bench system PID can control the start-stop of the driving motor 8 and the rotation angle of the servo motor 57;

[0057] Further, the brake emission measuring instrument 6 transmits the detection structure to the bench system PID, and the bench system PID controls the driving motor 8 and the servo motor 57 to make the data inside the brake emission measuring instrument 6 reach the set value.

[0058] The working principle of the utility model is: when using, first, stable airflow is generated through the constant displacement air intake air conditioner 2, then the bench system PID controls the action of the adjustable electric valve 5 between the air intake air conditioner 2 and the precision filter 9, the bench system PID controls the servo motor 57 to rotate a specific angle, the servo motor 57 drives the valve core 53 to rotate through the center rotating rod 551, and when the center rotating rod 551 rotates, the intermediate idler 558 drives the rotating ring 554 to rotate synchronously through the meshing with the outer gear ring 553 and the inner tooth groove 556, so that the indicating frame 555 on the rotating ring 554 rotates along the outside of the annular scale 561, which is convenient for indicating the opening of the valve core 53 inside at any time, and the air flow measured by the air flow meter 3 reaches the target value by controlling the opening of the adjustable electric valve 5, and since the annular scale 561 is engraved with only the scale to be used, and the indicating frame 555 cooperates with each other, which is convenient for the experimenter to record the opening of the valve core 53 in the adjustable electric valve 5 at present;

[0059] When entering the formal test, the opening of the adjustable electric valve 5 is inputted by manually rotating the valve core 53 through the hand valve wheel 52, so that the air flow in the brake emission measuring instrument 6 is stable. Since the air conditioning system is a closed pipe, the adjustable electric valve 5 opens the air overflow, the intake air conditioner 2 inhales air from the system inside, so that the brake emission measuring instrument 6 realizes the micro negative pressure state;

[0060] If a larger air volume is required, the adjustable electric valve 5 installed between the intake air conditioner 2 and the air flow meter 3 is opened through the bench system PID control, and the driving motor 8 is controlled to rotate, so that the air pump 7 is driven to rotate through the belt drive at the end of the driving motor 8, part of the air in the system is extracted, and the purpose of increasing the air volume of the system is achieved. Using the air volume adjustment method of the fixed displacement air conditioner, the fixed displacement intake air conditioner with insufficient air volume can be used to meet the new requirements, and the research and development cost of the whole set of detection equipment is saved, and the development cycle of the whole set of equipment is saved.

[0061] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A constant displacement airflow regulating device for an air conditioner, characterized in that: Including fixed displacement intake air conditioning (2), intake air conditioning (2) one end through the pipeline and air flow meter (3) communication, the other end through the pipeline and precision filter (9) communication, wherein, intake air conditioning (2) and air flow meter (3) between the pipeline and intake air conditioning (2) and precision filter (9) between the pipeline are installed with adjustable electrical valve (5), wherein, intake air conditioning (2) and air flow meter (3) between the adjustable electrical valve (5) the other end is connected with air pump (7) through the pipeline; The adjustable electrical valve (5) includes a valve body pipeline (51), a valve core (53) is installed in the valve body pipeline (51), and both ends of the valve core (53) penetrate the valve body pipeline (51) and extend to the outside of the valve body pipeline (51); Wherein, the upper side of the valve body pipeline (51) is fixedly connected with a support seat (54), and the support seat (54) is movably connected with an indicating rotating wheel (55) matched with the valve core (53), and the outside of the indicating rotating wheel (55) is further provided with an indicating scale (56).

2. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 1, wherein: The support seat (54) includes two parallel rectangular hole plates (541), and the two rectangular hole plates (541) are fixedly connected with symmetric arc-shaped side plates (542), and each arc-shaped side plate (542) is integrally provided with symmetric limiting baffle plates (543) on the side.

3. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 2, wherein: The rectangular hole plate (541) arranged at the bottom of the arc-shaped side plate (542) is fixedly connected with the valve body pipeline (51), and the rectangular hole plate (541) at the other end of the arc-shaped side plate (542) is fixedly connected with a servo motor (57), and the end of the servo motor (57) is integrally provided with a rectangular clamping block.

4. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 3, wherein: The indicating rotating wheel (55) includes a center rotating rod (551) penetrating the rectangular hole plate (541), and the both ends of the center rotating rod (551) are provided with rectangular clamping grooves (552), and the end of the valve core (53) is integrally provided with a rectangular plug corresponding to the rectangular clamping groove (552). Wherein, the rectangular plug on the valve core (53) is inserted into the rectangular clamping groove (552) at one end of the center rotating rod (551), and the rectangular clamping block at the end of the servo motor (57) is inserted into the rectangular clamping groove (552) at the other end of the center rotating rod (551).

5. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 4, wherein: The outside of the center rotating rod (551) is further provided with a rotating ring (554) sleeved on the outside of the arc-shaped side plate (542), and the limiting baffle plates (543) are located on both sides of the rotating ring (554), and the rotating ring (554) is rotatably connected with the arc-shaped side plate (542).

6. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 5, wherein: The center rotating rod (551) and the rotating ring (554) are provided with symmetrically distributed support shafts (557), and the support shafts (557) are movably connected with the symmetric rectangular hole plates (541), and the outside of each support shaft (557) is movably connected with an intermediate idler (558). The outer side of the central rotating rod (551) is integrally provided with an outer gear ring (553) corresponding to the intermediate idler gear (558), the inner side of the rotating ring (554) is provided with an inner gear groove (556) corresponding to the intermediate idler gear (558), and the intermediate idler gear (558) is in meshing engagement with the outer gear ring (553) and the inner gear groove (556) respectively.

7. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 6, wherein: The indicating scale (56) comprises an annular scale (561) sleeved on the outer side of the rotating ring (554), the outer side of the annular scale (561) is provided with scale lines, and the bottom of the annular scale (561) is integrally provided with symmetrical side supports (562) fixedly connected with the two sides of the valve body pipeline (51) respectively.

8. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 7, wherein: The side surface of the rotating ring (554) is fixedly connected with an indicating frame (555), the end of the indicating frame (555) is fixedly connected with the rotating ring (554), and the indicating frame (555) is attached to the side surface of the rotating ring (554).

9. The air volume adjusting apparatus of a fixed displacement air conditioner according to claim 8, wherein: The air flowmeter (3) is fixedly connected with an air filter (4) away from one end of the air intake air conditioner (2), the other end of the air filter (4) is communicated with a brake emission measuring instrument (6) through a pipeline, and the brake emission measuring instrument (6) is communicated with one end of the precision filter (9) away from the air intake air conditioner (2).

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