CN112229474A - Novel automobile seat ventilation volume measuring device and measuring method - Google Patents
Novel automobile seat ventilation volume measuring device and measuring method Download PDFInfo
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- CN112229474A CN112229474A CN202011222562.2A CN202011222562A CN112229474A CN 112229474 A CN112229474 A CN 112229474A CN 202011222562 A CN202011222562 A CN 202011222562A CN 112229474 A CN112229474 A CN 112229474A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
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Abstract
A novel automobile seat ventilation volume measuring device and a measuring method are disclosed, wherein the measuring device comprises a seat saddle, a test box, a gas mass flowmeter, a pressure difference sensor, a fan and a controller; the seat saddle is fixedly connected with one end of the test box; the testing box is of an internal hollow structure, one end of the testing box, which is connected with the seat sliding saddle, is of an open structure, so that the interior of the testing box is communicated with the seat sliding saddle, a pressure difference sensor is installed in the testing box and is electrically connected with the controller and used for transmitting pressure difference information to the controller, a vent is processed at the tail end of the testing box and is connected with a fan through a ventilation pipeline, a gas mass flowmeter is installed on the ventilation pipeline and is electrically connected with the controller and used for measuring the mass of gas passing through the ventilation pipeline; the fan is electrically connected with the controller, and the fan is controlled by the controller to supply air to the test box or suck air from the test box outwards. The measuring equipment has reasonable structural design and can realize high-precision full-automatic measurement.
Description
Technical Field
The invention belongs to the field of ventilation quantity measuring devices, and particularly relates to novel automobile seat ventilation quantity measuring equipment and a measuring method.
Background
In order to ensure the comfort of the seat in a high-end vehicle, a ventilation device is generally arranged on the seat. The existing ventilation devices mainly comprise two types, one type is to blow air to the seat cushion protective surface and/or the backrest protective surface through a blower, and the other type is to suck air outwards from the seat cushion protective surface and/or the backrest protective surface through an exhaust fan; however, the ventilation capacity of the ventilation device needs to be kept within a certain range, and the ventilation amount of the seat of each model in unit time needs to be tested.
The existing seat ventilation volume test system mainly measures the flow velocity of the whole system entering air through a backboard ventilation test port through an anemograph, and calculates the air volume flowing through a seat by the measured air velocity and the sectional area of the known ventilation test port. For example: the measuring system of the ventilation seat ventilation quantity measuring device for the commercial vehicle disclosed in the Chinese patent CN109253887A detects the ventilation quantity of the ventilation seat through a wind speed measuring instrument, after the ventilation seat works for 5 minutes, the wind speed measuring instrument is used for measuring the air flow rate of a pipeline position for measuring the flow speed of an air inlet reserved on a shell, and the whole seat ventilation quantity of the ventilation seat is calculated by combining the diameter of the pipeline, wherein the precision of the wind quantity measuring mode is influenced by the diameter and the length of a test hole, and no large air flow needs to be kept indoors; in addition, the measurement method needs personnel to calculate the reading, and errors exist, so that the measurement result is not accurate enough.
Chinese patent CN209927226U discloses a "car seat ventilation volume measuring system", which mainly uses an air volume meter (electronic air volume sensor) to detect air volume, although the system can directly detect air volume, because pressure balance is not considered in the measuring process, and data is not monitored and recorded in real time, there is still a problem that the measured data is not accurate.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a novel car seat ventilation volume measuring device, which has a reasonable structural design and can realize high-precision full-automatic measurement.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel automobile seat ventilation measuring device comprises a seat sliding saddle, a test box, a gas mass flowmeter, a pressure difference sensor, a fan and a controller; the seat saddle is used for placing a to-be-measured ventilation seat, and is fixedly connected with one end of the test box;
the testing box is of an internal hollow structure, one end of the testing box, which is connected with the seat sliding saddle, is of an open structure, so that the interior of the testing box is communicated with the seat sliding saddle, a pressure difference sensor is installed in the testing box and is electrically connected with the controller and used for transmitting pressure difference information between the interior of the testing box and the external air pressure to the controller in real time, a vent is processed at one end of the testing box, which is far away from the seat sliding saddle, and is connected with a fan through a ventilation pipeline, a gas mass flowmeter is installed on the ventilation pipeline and is electrically connected with the controller and used for measuring the mass of gas passing through the ventilation pipeline and sending measurement data to the controller; the fan is electrically connected with the controller, and the fan is controlled by the controller to supply air to the test box or suck air from the test box outwards.
Preferably, the seat saddle is an open box structure with L-shaped side surfaces.
Preferably, the seat saddle and the test box are fixedly connected through a plurality of locking clamps, the locking clamps are distributed around the test box at intervals, the lock catches of the locking clamps are arranged on the seat saddle, and the pressing devices of the locking clamps are arranged on the test box; the seat saddle all is provided with the universal wheel with the bottom of test box.
Preferably, the front end of the seat saddle is provided with a pedal bracket, the pedal bracket is provided with a pedal, and the pedal is movably connected with the pedal bracket to adjust the heel angle of the rider.
Preferably, a honeycomb medium partition plate is installed in the test box at a position relatively close to the ventilation opening, the honeycomb medium partition plate divides the test box into two relatively independent chambers, and a pressure difference sensor is arranged in each chamber.
Preferably, a fan mounting frame is mounted at the top of the test box, and the fan is fixed on the fan mounting frame.
As a further preferred aspect of the present invention, the honeycomb medium separation plate includes a frame-type partition plate and a honeycomb mesh cloth covering the frame-type partition plate, and the honeycomb mesh cloth is used for scattering the flowing wind.
Another object of the present invention is to provide a method for measuring ventilation of a ventilated seat by using the above novel device for measuring ventilation of an automobile seat, comprising the following steps:
when the fan of the ventilation seat is in a working mode of exhausting air from the seat cushion protective surface and/or the backrest protective surface, the pressure difference sensor in the test box monitors that the external pressure is smaller than the pressure in the test box, the controller controls the fan to work at the moment, the air is exhausted to the outside of the test box, the air pressure in the test box is adjusted, when the internal pressure and the external pressure in the test box are fed back to be 0 through the pressure difference sensor, the fact that the internal pressure and the external pressure in the test box are kept consistent is proved, the air volume extracted from the ventilation seat is equal to the air volume extracted from the fan to the outside of the test box, the air volume extracted from the fan is timed in gas mass flow on a ventilation pipeline, the air volume is calculated through the.
Preferably, when the test chamber is a double chamber, the pressure difference sensor in each chamber is ensured to be 0.
The invention has the advantages and beneficial effects that:
(1) according to the ventilation quantity measuring device provided by the invention, the pressure difference sensor is arranged in the test box and is communicated with the fan in real time through the controller, so that the internal pressure and the external pressure of the measuring device can be detected and adjusted in real time, and compared with the existing air quantity measuring device, the accuracy of air quantity measurement is greatly improved.
(2) The honeycomb medium partition plate is arranged in the test box in the ventilation measuring equipment provided by the invention, and due to the existence of the honeycomb medium, flowing air can be scattered when passing through the medium, so that the vortex is prevented from being generated, the air quantity test is prevented from being influenced, and the air quantity measurement precision is further improved.
(3) The ventilation measuring device is connected with the high-precision controllable fan through the ventilation pipeline at the position of the measuring port of the original device, and the air quantity is measured by the gas mass flowmeter on the ventilation pipeline, so that the influence of the measuring port of the original device on the measuring precision is avoided.
(4) When the measuring equipment of the invention is operated, the whole equipment is in a relatively sealed state, the requirement on the fluidity of the air around the equipment is greatly reduced, the whole equipment is automatically operated according to set parameters after being started, the whole equipment is completely in an independent operation state in the air volume measuring process, personnel are not required to track and record data in real time during the operation period, a tester can perform other work during the period, and the controller can automatically generate an air volume measuring curve according to the gas mass flowmeter after the measurement is finished, so that the data processing time is greatly reduced, the test measuring time is saved, the cost is reduced, and the working efficiency is improved.
(5) The universal wheels are arranged below the measuring equipment, so that the universal wheels can be conveniently moved to different environments for testing, the air volume can be measured in different environments, and particularly, when the universal wheels are used for measuring under extreme conditions, the controller and the test box body are independent from each other, so that the controller can be controlled outside the environment box under high-temperature or low-temperature conditions, and the test equipment does not need to be damaged under extreme conditions; and because personnel do not need to enter the interior of the environment box for operation in the test process, the damage to human bodies caused by extreme environments is avoided, and the health and safety of the test personnel are fully ensured.
(6) The seat saddle and the test box of the measuring equipment are fixedly connected through the plurality of locking clamps, the seat saddle is convenient to replace, under the condition that the test box is not changed, the seat saddle can be replaced by a front-row seat saddle or a rear-row seat saddle according to the requirement, the ventilation measurement of front and rear rows of seats is met, and the replacement process is simple, convenient and fast.
Drawings
FIG. 1 is one of the overall structural schematic views of the ventilation amount measuring apparatus of the present invention;
FIG. 2 is a second schematic view of the overall structure of the air volume measuring apparatus of the present invention;
FIG. 3 is a third schematic view showing the overall construction of the air volume measuring apparatus of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 1;
FIG. 5 is an enlarged view of portion B of FIG. 2;
FIG. 6 is a schematic view of the operation of the draft measuring device of the present invention;
FIG. 7 is a block diagram of the operation of the draft measuring device of the present invention;
fig. 8 is a schematic view of a honeycomb media separator plate.
Reference numerals: seat saddle 1, test box 2, gas mass flowmeter 3, pressure difference sensor 4, fan 5, controller 6, ventilation pipe 7, running-board support 8, running-board 9, collet 10, honeycomb medium division board 11, fan mounting bracket 12, universal wheel 13, ventilation seat 14, hasp 101, compactor 102, frame-type baffle 111, honeycomb screen cloth 112.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
In the description of the present application, it is to be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 8, the novel automobile seat ventilation measuring device provided by the invention comprises a seat saddle 1, a test box 2, a gas mass flowmeter 3, a pressure difference sensor 4, a fan 5, a fan mounting frame 12 and a controller 6; the seat saddle 1 is of an L-shaped open box structure, the seat saddle 1 is used for placing a to-be-measured ventilation seat 14, and the seat saddle 1 is fixedly connected with one end of the test box 2;
the test box 2 is of an internal hollow structure, and one end of the test box 2, which is connected with the seat saddle 1, is of an open structure, so that the interior of the test box 2 is communicated with the seat saddle 1; a honeycomb medium partition plate 11 is installed inside the test box 2 at a position relatively close to the ventilation opening (approximately at the rear third of the test box), the honeycomb medium partition plate 11 divides the test box 2 into two relatively independent chambers, the honeycomb medium partition plate 11 comprises a frame-type partition plate 111 and a honeycomb mesh cloth 112 coated outside the frame-type partition plate 111, and the honeycomb mesh cloth 112 is used for scattering flowing wind, preventing the generation of vortex and influencing the wind volume test; the testing device comprises a testing box, wherein pressure difference sensors 4 are respectively arranged in two cavities of the testing box, the pressure difference sensors 4 are electrically connected with a controller 6 and are used for transmitting pressure difference information between the inside of the testing box 2 and the outside air pressure to the controller 6 in real time, a vent is processed at one end (the tail end of the testing box) of the testing box 2, which is far away from a seat saddle, the vent is connected with a fan 5 through a ventilation pipeline 7, a gas mass flowmeter 3 is installed on the ventilation pipeline 7, the gas mass flowmeter 3 is electrically connected with the controller 6 and is used for measuring the mass of gas passing through the ventilation pipeline 7 and sending the measured data to the controller 6; the fan 5 is fixed on the fan mounting frame 12, the fan mounting frame 12 is installed at the top of the test box 2, the fan 5 is electrically connected with the controller 6, and the controller 6 controls the fan 5 to supplement air into the test box 2 or suck air outwards from the test box 2.
In order to conveniently replace the seat saddle 1 and enable the measuring equipment to meet the requirement of ventilation measurement on front and rear rows of seats, the test box 2 is fixedly connected with the seat saddle 1 through a plurality of locking clamps 10, the locking clamps 10 are distributed around the test box 2 at intervals, locking buckles 101 of the locking clamps are installed on the seat saddle 1, and pressing devices 102 of the locking clamps are installed on the test box 2; in addition, in order to conveniently move the measuring equipment to different environments for testing, universal wheels 13 are arranged at the bottoms of the seat saddle 1 and the test box 2; finally, in order to measure the ventilation of the seat after a person sits conveniently, the front end of the seat saddle 1 is provided with a pedal support 8, a pedal 9 is mounted on the pedal support 8, and the pedal 9 is movably connected with the pedal support 8 so as to adjust the heel point angle of the seated person.
Example 2
The method for measuring the ventilation volume of the ventilated seat by adopting the novel automobile seat ventilation volume measuring device comprises the following steps:
when the fan of the ventilation seat is in a working mode of exhausting air from the seat cushion protective surface and/or the backrest protective surface, the pressure difference sensor in the test box monitors that the external pressure is smaller than the pressure in the test box, the controller controls the fan to work at the moment, the air is exhausted to the outside of the test box, the air pressure in the test box is adjusted, when the internal pressure and the external pressure in the test box are fed back to be 0 through the pressure difference sensor, the fact that the internal pressure and the external pressure in the test box are kept consistent is proved, the air volume extracted from the ventilation seat is equal to the air volume extracted from the fan to the outside of the test box, the air volume extracted from the fan is timed in gas mass flow on a ventilation pipeline, the air volume is calculated through the.
Claims (9)
1. A novel automobile seat ventilation measuring device is characterized by comprising a seat saddle, a test box, a gas mass flowmeter, a pressure difference sensor, a fan and a controller; the seat saddle is used for placing a to-be-measured ventilation seat, and is fixedly connected with one end of the test box;
the testing box is of an internal hollow structure, one end of the testing box, which is connected with the seat sliding saddle, is of an open structure, so that the interior of the testing box is communicated with the seat sliding saddle, a pressure difference sensor is installed in the testing box and is electrically connected with the controller and used for transmitting pressure difference information between the interior of the testing box and the external air pressure to the controller in real time, a vent is processed at one end of the testing box, which is far away from the seat sliding saddle, and is connected with a fan through a ventilation pipeline, a gas mass flowmeter is installed on the ventilation pipeline and is electrically connected with the controller and used for measuring the mass of gas passing through the ventilation pipeline and sending measurement data to the controller; the fan is electrically connected with the controller, and the fan is controlled by the controller to supply air to the test box or suck air from the test box outwards.
2. The novel vehicle seat ventilation measuring device of claim 1, wherein the seat saddle is an open box structure with L-shaped sides.
3. The novel automobile seat ventilation measuring device is characterized in that the seat saddle is fixedly connected with the test box through a plurality of locking clamps, the locking clamps are distributed around the test box at intervals, locking buckles of the locking clamps are installed on the seat saddle, and pressing devices of the locking clamps are installed on the test box; the seat saddle all is provided with the universal wheel with the bottom of test box.
4. The novel automobile seat ventilation measuring device as claimed in claim 1, wherein a pedal support is provided at the front end of the seat saddle, a pedal is mounted on the pedal support, and the pedal is movably connected with the pedal support to adjust the heel point angle of the rider.
5. The novel automobile seat ventilation measuring device is characterized in that a honeycomb medium separating plate is installed inside the test box and is relatively close to the ventilation opening, the honeycomb medium separating plate divides the test box into two relatively independent chambers, and a pressure difference sensor is arranged in each chamber.
6. The novel automobile seat ventilation measuring device as claimed in claim 1, wherein a fan mounting rack is mounted at the top of the test box, and the fan is fixed on the fan mounting rack.
7. The novel vehicle seat ventilation measuring device of claim 5, wherein the honeycomb media separation plate comprises a frame-type partition plate and a honeycomb mesh cloth covering the frame-type partition plate, and the honeycomb mesh cloth is used for scattering flowing wind.
8. The method for measuring the ventilation quantity of the novel automobile seat as claimed in claim 1, characterized by comprising the following steps:
step 1, placing a ventilation seat on a seat saddle, sealing the ventilation seat and the seat saddle by using a plastic film and an adhesive tape, and only exposing a ventilation area of a seat cushion and/or a backrest;
step 2, starting ventilation volume measuring equipment and a ventilation seat fan, wherein when the ventilation seat fan is in a working mode of blowing air to a seat cushion protective surface and/or a backrest protective surface, a pressure difference sensor in a test box monitors that the external pressure is greater than the pressure in the test box, at the moment, a controller controls the fan to work, air is supplemented into the test box, the air pressure in the test box is adjusted, when the internal air pressure and the external air pressure in the test box are fed back to be 0 through the pressure difference sensor, the fact that the internal air pressure and the external air pressure in the test box are consistent is proved, the air volume out of the ventilation seat is equal to the air volume compensated into the test box by the fan, the air volume compensated by the fan is calculated through a gas mass flow meter when the air volume compensated by the fan is measured through the;
when the fan of the ventilation seat is in a working mode of exhausting air from the seat cushion protective surface and/or the backrest protective surface, the pressure difference sensor in the test box monitors that the external pressure is smaller than the pressure in the test box, the controller controls the fan to work at the moment, the air is exhausted to the outside of the test box, the air pressure in the test box is adjusted, when the internal pressure and the external pressure in the test box are fed back to be 0 through the pressure difference sensor, the fact that the internal pressure and the external pressure in the test box are kept consistent is proved, the air volume extracted from the ventilation seat is equal to the air volume extracted from the fan to the outside of the test box, the air volume extracted from the fan is timed in gas mass flow on a ventilation pipeline, the air volume is calculated through the.
9. The method for measuring the ventilation of the novel automobile seat according to claim 8, wherein when the test box is a double chamber, the pressure difference sensor in each chamber is ensured to be 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222562.2A CN112229474A (en) | 2020-11-05 | 2020-11-05 | Novel automobile seat ventilation volume measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222562.2A CN112229474A (en) | 2020-11-05 | 2020-11-05 | Novel automobile seat ventilation volume measuring device and measuring method |
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| Publication Number | Publication Date |
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| CN112229474A true CN112229474A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011222562.2A Pending CN112229474A (en) | 2020-11-05 | 2020-11-05 | Novel automobile seat ventilation volume measuring device and measuring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383862A (en) * | 2021-12-06 | 2022-04-22 | 上汽大众汽车有限公司 | Modularization seat ventilation volume measuring device |
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2020
- 2020-11-05 CN CN202011222562.2A patent/CN112229474A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383862A (en) * | 2021-12-06 | 2022-04-22 | 上汽大众汽车有限公司 | Modularization seat ventilation volume measuring device |
| CN114383862B (en) * | 2021-12-06 | 2023-09-05 | 上汽大众汽车有限公司 | Modularized seat ventilation measuring device |
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