CN110949094A - Control method for sealing between air conditioner external unit and vehicle body of vehicle - Google Patents
Control method for sealing between air conditioner external unit and vehicle body of vehicle Download PDFInfo
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- CN110949094A CN110949094A CN201911334880.5A CN201911334880A CN110949094A CN 110949094 A CN110949094 A CN 110949094A CN 201911334880 A CN201911334880 A CN 201911334880A CN 110949094 A CN110949094 A CN 110949094A
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- air conditioner
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- sealing
- external unit
- pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00514—Details of air conditioning housings
- B60H1/00535—Mounting or fastening of the housing to the vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a control method for sealing between an air conditioner external unit and a vehicle body of a vehicle, which comprises the steps of detecting the pressure between a sealing device and the roof of the vehicle, judging the installation tightness of the air conditioner external unit of the vehicle, judging whether the installation tightness of the sealing device of the air conditioner external unit of the vehicle and the roof of the vehicle is good or not, reporting a fault code on a display panel by an air conditioning system correspondingly to remind a user of the occurrence of sealing problems of the air conditioner external unit of the vehicle when the sealing performance is judged to be poor and not meet the requirement, and controlling a logic control vehicle air conditioner to execute corresponding response. The detection control method can judge the installation tightness of the vehicle air conditioner external unit and guide the installation when the vehicle air conditioner is installed. When the vehicle air conditioner is used, the fault code can be reported in time to remind a user when the installation sealing difference of the vehicle air conditioner external unit is not enough, so that the user can take measures for reminding, and the problems that the vehicle roof is leaked and the vehicle external unit is thrown out during the operation of the vehicle due to the fact that the sealing difference is not enough are avoided.
Description
Technical Field
The invention relates to a control method for sealing between an air conditioner external unit and a vehicle body of a vehicle, in particular to a control method for detecting the installation sealing performance of the air conditioner external unit of a motor home based on the pressure between a collecting and sealing device and the roof.
Background
For the vehicle air conditioner, in order to ensure that the outdoor unit is firmly installed and the sealing device of the vehicle air conditioner outdoor unit is tightly attached to the vehicle roof plate after installation to ensure good sealing performance, a fastening device (such as an installation plate, a bolt and the like) is adopted to fix the vehicle air conditioner outdoor unit. As disclosed in chinese patent documents CN209191640U and CN208149006U, the air conditioner outdoor unit of the vehicle and the roof of the vehicle are connected by a sealing device.
However, in the existing vehicle air conditioner, when the vehicle air conditioner is installed, the fastening device is not fastened or loosens in the using process, and the sealing performance of the sealing device of the vehicle air conditioner external unit and the vehicle roof plate is damaged. This in turn leads to the following problems:
(1) condensed water or rainwater and other accumulated water on the roof of the vehicle air conditioner external unit flow into the vehicle along a gap between the sealing device of the vehicle air conditioner external unit and the roof plate of the vehicle, so that water leakage is caused, the electrical safety of the internal unit is endangered, and the interior decoration of the vehicle is damaged;
(2) the outer unit may be loosened and may be thrown out when the outer unit is severe.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling the sealing between an air conditioner external unit and a vehicle body of a vehicle, and particularly provides a method for detecting the installation sealing performance of the air conditioner external unit of a caravan based on the pressure between a collecting sealing device and the roof of the vehicle, so as to determine whether the installation sealing performance of the air conditioner external unit sealing device and the roof of the vehicle meets the requirement. And preferably, the solution is to solve what response the air conditioning system should make when the sealing performance of the vehicle air conditioner outdoor unit and the vehicle roof installation is determined not to meet the requirement.
Specifically, the method comprises the following steps: a control method for sealing between an air conditioner external unit and a vehicle body of a vehicle is provided, wherein a sealing device is arranged between the air conditioner external unit and the vehicle body, and the control method comprises the following steps:
s01: acquiring the pressure Pn between the sealing device and the vehicle roof:
s02: comparing and judging the magnitude relation between the pressure Pn and a first preset pressure P, and judging that the sealing property between the air conditioner external unit and the vehicle body meets the requirement when Pn is larger than or equal to P;
and when Pn < P, judging that the sealing performance between the air conditioner external unit and the vehicle body does not meet the requirement.
Preferably, step S01 is preceded by the step of: S01A: the air conditioner is turned on and operates, and after the air conditioner is turned on and stably operates for a first preset time, the step S01 is executed.
Preferably, step S02 is followed by step S03: when the sealing performance between the air conditioner external unit and the vehicle body is judged to meet the requirement, the air conditioner normally operates;
and when the sealing performance between the air conditioner external unit and the vehicle body is judged not to meet the requirement, sending prompt information to a user.
Preferably, in step S03, "when it is determined that the sealing property between the outdoor unit of the air conditioner and the vehicle body does not satisfy the requirement" further includes the steps of:
acquiring the current operation mode of the air conditioner:
when the operation mode is a non-air supply mode, the operation mode of the air conditioner is switched to be an air supply mode, and the air conditioner is stopped after the operation for the second preset time; and when the operation mode is the air supply mode, maintaining the existing operation mode, and stopping the machine after the operation for the second preset time.
Preferably, the step S03 of "issuing a prompt message to the user" includes: fault codes are displayed through a display panel, and/or a buzzer alarms, and/or an alarm indicator lamp is lightened.
Preferably, the sealing device is installed between the air conditioner outdoor unit and the vehicle roof.
Preferably, the pressure Pn between the sealing device of the air conditioner outdoor unit of the vehicle and the roof is detected by a pressure sensor.
In addition, the present invention provides a control device for sealing between an air conditioner external unit and a vehicle body of a vehicle, characterized in that: the control device adopts the control method of any one of claims 1 to 7.
Preferably, the control device comprises a control unit, a pressure sensor; the pressure sensor is used for acquiring the pressure Pn between a sealing device of the air conditioner external unit of the vehicle and the roof; the pressure sensor transmits the detected pressure Pn to the control unit, and the control unit compares and judges the magnitude relation between the roof pressure Pn and the first preset pressure P and judges whether the sealing property between the air conditioner external unit and the vehicle body meets the requirement or not.
Preferably, the control unit controls the operation of the air conditioner and gives a prompt message to a user according to the 'determination of whether the sealability between the outdoor unit of the air conditioner and the vehicle body is satisfied'.
Has the advantages that:
(1) when the vehicle air conditioner is installed, the installation tightness of the vehicle air conditioner external unit can be judged, and installation is guided.
(2) When the vehicle air conditioner is used, the fault code can be reported in time to remind a user when the installation sealing difference of the vehicle air conditioner external unit is not enough, so that the user can take measures for reminding, and the problems that the vehicle roof is leaked and the vehicle external unit is thrown out in the running process due to the fact that the sealing difference is not enough are avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic cross-sectional view of a conventional vehicle roof in sealed connection with an air conditioner.
Fig. 2 is a flow chart illustrating a method for controlling sealing between an air conditioner external unit and a vehicle body of a vehicle according to the present invention.
The air conditioner comprises an air conditioner outdoor unit 1, a vehicle roof 2, a sealing device 3 and a fastening piece 4.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings 1 and 2:
as shown in fig. 1, a sealing fit relationship between a conventional vehicle body (roof 2) and an air conditioner outdoor unit 1 is schematically shown, wherein: a sealing device 3 is arranged between the air conditioner outdoor unit 1 and the vehicle roof 2, the air conditioner outdoor unit 1 and the vehicle roof 2 are connected together through a fastening piece 4, and the sealing device 3 is pressed by pressure generated between the air conditioner outdoor unit 1 and the vehicle roof 2 through the fastening piece 4, so that the sealing effect is achieved. However, in the conventional vehicle air conditioner, when the vehicle air conditioner is installed, the fastening device is not fastened or loosens in the using process, so that the sealing performance of the sealing device 3 of the vehicle air conditioner outdoor unit 1 and the vehicle roof 2 plate is damaged. Therefore, it is necessary to provide a method for controlling the sealing between the air-conditioning outdoor unit 1 and the vehicle body of the vehicle to ensure the sealing between the air-conditioning outdoor unit 1 and the vehicle roof 2.
As shown in FIG. 2, the invention provides a control method for detecting the sealing property between an air conditioner outdoor unit 1 and a vehicle body of a vehicle, aiming at the problems and potential safety hazards caused by poor and unsatisfied mounting sealing property between a sealing device 3 of the air conditioner outdoor unit 1 and a vehicle roof 2, the invention collects the pressure between the sealing device 3 and the vehicle roof 2 and judges whether the mounting sealing property between the air conditioner outdoor unit 1 and the vehicle roof 2 is good or not. And when the air conditioner is judged to have poor sealing performance and not meet the requirements, the air conditioner adopts a corresponding fault code reported on the display panel to remind a user that the sealing of the vehicle air conditioner external unit 1 is in a problem, and controls the logic control vehicle air conditioner to execute a corresponding response measure.
When the sealing performance of the vehicle air conditioner outdoor unit 1 is not satisfactory, that is, the fastening device (such as a mounting plate, a bolt, etc.) is not tightened or is driven after being tightened, the pressure between the sealing device 3 and the vehicle roof 2 is reduced. According to the invention, a pressure acquisition sensor is arranged between a sealing device 3 of the vehicle air conditioner outdoor unit 1 and the vehicle roof 2, and a protection control logic for judging the installation tightness (whether the requirement is met) of the sealing device 3 of the vehicle air conditioner outdoor unit 1 and the vehicle roof 2 based on the pressure acquisition between the sealing device 3 and the vehicle roof 2 is developed to judge whether the tightness meets the requirement, and a corresponding operation strategy is formulated according to a judgment conclusion.
According to the method, through experimental tests or theoretical analysis, the pressure P between the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2 when the sealing performance is judged to be not met is determined, wherein the pressure P is the first preset pressure P, and when the pressure P is not reached, the sealing performance of the sealing device and the pressure P is not enough.
The invention can collect the pressure Pn of the sealing device 3 and the roof 2 of the vehicle air conditioner outdoor unit 1 after the air conditioner is started and stably operates for the first preset time tn, and transmits the value into the control unit of the control device, judges whether the sealing performance of the vehicle air conditioner outdoor unit 1 is required, and executes corresponding action according to the judgment result.
The invention provides a control method for sealing between an air conditioner outdoor unit 1 and a vehicle body of a vehicle, wherein a sealing device 3 is arranged between the air conditioner outdoor unit 1 and the vehicle body, and the control method comprises the following steps:
s01: acquiring a pressure Pn between a sealing device 3 of an air conditioner external unit 1 of a vehicle and a roof 2:
s02: comparing and judging the magnitude relation between the pressure Pn of the vehicle roof 2 and a first preset pressure P, and judging that the sealing property between the air conditioner outdoor unit 1 and the vehicle body meets the requirement when Pn is larger than or equal to P;
and when Pn < P, judging that the sealing performance between the air conditioner external unit 1 and the vehicle body is not satisfactory.
Optionally, step S01 is preceded by the step of: S01A: the air conditioner is turned on and operates, and after the air conditioner is turned on and stably operates for a first preset time, the step S01 is executed.
Step S03 is also included after step S02: when the air conditioner outdoor unit 1 and the vehicle body are judged to meet the requirement on sealing performance, the air conditioner normally operates; and when the air conditioner outdoor unit 1 is judged not to meet the requirement on the sealing performance between the air conditioner outdoor unit and the vehicle body, sending prompt information to a user.
In step S03, "when it is determined that the sealing property between the air-conditioning outdoor unit 1 and the vehicle body does not satisfy the requirement," further includes the steps of: acquiring the current operation mode of the air conditioner: when the operation mode is a non-air supply mode, the operation mode of the air conditioner is switched to be an air supply mode, and the air conditioner is stopped after the operation for the second preset time; and when the operation mode is the air supply mode, maintaining the existing operation mode, and stopping the machine after the operation for the second preset time.
The step S03 of "issuing a prompt message to the user" includes: fault codes are displayed through a display panel, and/or a buzzer alarms, and/or an alarm indicator lamp is lightened.
The pressure Pn between the sealing device 3 of the vehicle air conditioner outdoor unit 1 and the roof 2 is detected by a pressure sensor.
A pressure acquisition sensor is arranged between a sealing device 3 of an air conditioner external unit 1 of a vehicle air conditioner and a vehicle roof 2, and control logic and the like for judging the installation tightness of the vehicle air conditioner external unit 1 based on the pressure P between the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2 and the pressure Pn between the acquisition sealing device 3 and the vehicle roof 2 when the tightness is judged to be not satisfied are written into a controller program. The specific implementation of the procedure is as follows:
and starting up the vehicle, after the vehicle is stably operated for a first preset time tn, acquiring the pressure Pn between the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2, and reading the pressure P between the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2 when the sealing performance is judged to be not satisfied by the synchronous controller.
The program reads the pressure P between the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2 when the recorded value is judged to be not satisfied with the sealing performance, and compares the pressure P with the measured value.
And when Pn < P, determining that the sealing device 3 of the vehicle air conditioner external machine 1 and the vehicle roof 2 are not required to be installed and sealed.
When Pn is larger than or equal to P, the sealing device 3 of the vehicle air conditioner external unit 1 and the vehicle roof 2 are installed in a sealing mode, the sealing performance meets the requirement, and the whole machine continuously operates according to the existing set state.
When the sealing device 3 of the vehicle air conditioner outdoor unit 1 and the vehicle roof 2 are judged to be not satisfactory in installation sealing performance, ① immediately transfers the wind mode when the operation mode is the non-wind supply mode and stops after the operation for a second preset time ti, ② maintains the existing operation mode and stops after the operation ti when the operation mode is the wind supply mode, and ③ simultaneously displays a board alarm fault code, a buzzer response and an alarm indicator lamp to flash.
The air conditioner of the invention has the non-air supply mode, namely a refrigeration mode and a heating mode; when the sealing is determined to be not tight, the waste heat or the waste cold is blown in the air mode. The time (second preset time) for blowing the residual heat or the residual cold can be set, such as 3min or 5 min.
In addition, the present invention provides a control device for sealing between an air conditioner external unit 1 and a vehicle body of a vehicle, characterized in that: the control device adopts the control method of the invention.
The control device comprises a control unit and a pressure sensor; the pressure sensor is used for acquiring the pressure Pn between a sealing device 3 of the vehicle air conditioner outdoor unit 1 and the vehicle roof 2; the pressure sensor transmits the detected pressure Pn to the control unit, and the control unit compares and judges the magnitude relation between the pressure Pn of the roof 2 and a first preset pressure P and judges whether the sealing performance between the air conditioner outdoor unit 1 and the vehicle body meets the requirement or not. The control unit controls the operation of the air conditioner and sends prompt information to a user according to the judgment of whether the sealing performance between the air conditioner external unit 1 and the vehicle body meets the requirement.
The vehicle of the present invention may be a motor home.
Has the advantages that:
the invention has at least the following beneficial effects:
the invention provides a method for detecting and controlling the sealing performance between an air conditioner external unit 1 and a vehicle body of a vehicle, which comprises the steps of detecting the pressure between a sealing device 3 and a vehicle roof 2, judging the mounting sealing performance of the air conditioner external unit 1, judging whether the mounting sealing performance of the sealing device 3 of the air conditioner external unit 1 and the vehicle roof 2 is good or not, reporting a fault code on a display panel by an air conditioning system correspondingly to remind a user that the air conditioner external unit 1 is in a sealing problem after judging that the sealing performance is poor and the requirement is not met, and controlling a logic control vehicle air conditioner to execute a corresponding response measure. The detection control method of the invention can judge the installation tightness of the vehicle air conditioner external unit 1 and guide the installation when the vehicle air conditioner is installed. When the vehicle air conditioner is used, the fault code can be reported in time to remind a user when the sealing difference of the vehicle air conditioner outer unit 1 is not enough, so that the user can take measures for reminding, and the problems that the vehicle roof 2 leaks water and the vehicle outer unit 1 is thrown out in the running process due to the fact that the sealing difference is not enough are avoided.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A control method for sealing between an air conditioner external unit and a vehicle body of a vehicle is characterized in that a sealing device is arranged between the air conditioner external unit and the vehicle body, and the control method comprises the following steps:
s01: acquiring the pressure Pn between the sealing device and the roof:
s02: comparing and judging the magnitude relation between the pressure Pn and a first preset pressure P, and judging that the sealing property between the air conditioner external unit and the vehicle body meets the requirement when Pn is larger than or equal to P;
and when Pn < P, judging that the sealing performance between the air conditioner external unit and the vehicle body does not meet the requirement.
2. The control method according to claim 1, characterized in that: step S01 is preceded by the step of: S01A: the air conditioner is turned on and operates, and after the air conditioner is turned on and stably operates for a first preset time, the step S01 is executed.
3. The control method according to claim 2, characterized in that: step S03 is also included after step S02: when the sealing performance between the air conditioner external unit and the vehicle body is judged to meet the requirement, the air conditioner normally operates;
and when the sealing performance between the air conditioner external unit and the vehicle body is judged not to meet the requirement, sending prompt information to a user.
4. The control method according to claim 3, characterized in that: in step S03, the "when it is determined that the sealing property between the air conditioner outdoor unit and the vehicle body does not satisfy the requirement" further includes the steps of:
acquiring the current operation mode of the air conditioner:
if the current operation mode is the non-air supply mode, the operation mode of the air conditioner is switched to be the air supply mode, and the air conditioner is stopped after the air conditioner operates for a second preset time; and if the current operation mode is the air supply mode, maintaining the current operation mode, and stopping the machine after the operation for the second preset time.
5. The control method according to any one of claims 1 to 4, characterized in that: the step S03 of "issuing a prompt message to the user" includes: fault codes are displayed through a display panel, and/or a buzzer alarms, and/or an alarm indicator lamp is lightened.
6. The control method according to any one of claims 1 to 4, characterized in that: the sealing device is arranged between the air conditioner outdoor unit and the vehicle roof.
7. The control method according to any one of claims 1 to 4, characterized in that: the pressure Pn between the seal and the roof is detected by a pressure sensor.
8. The utility model provides a sealed controlling means between outer machine of air conditioner of vehicle and automobile body which characterized in that: the control device adopts the control method of any one of claims 1 to 7.
9. The control device according to claim 8, characterized in that: the control device comprises a control unit and a pressure sensor; the pressure sensor is used for acquiring the pressure Pn between a sealing device of the air conditioner external unit of the vehicle and the roof; the pressure sensor transmits the detected pressure Pn to the control unit, and the control unit compares and judges the magnitude relation between the pressure Pn and a first preset pressure P and judges whether the sealing property between the air conditioner external unit and the vehicle body meets the requirement or not.
10. The control device according to claim 9, characterized in that: and the control unit controls the operation of the air conditioner and sends prompt information to a user according to the judgment of whether the sealing property between the air conditioner external unit and the vehicle body meets the requirement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911334880.5A CN110949094A (en) | 2019-12-23 | 2019-12-23 | Control method for sealing between air conditioner external unit and vehicle body of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911334880.5A CN110949094A (en) | 2019-12-23 | 2019-12-23 | Control method for sealing between air conditioner external unit and vehicle body of vehicle |
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| US4672818A (en) * | 1986-09-08 | 1987-06-16 | Intertherm Inc. | Three-member plastic rooftop air conditioner housing |
| CN102852217A (en) * | 2012-08-31 | 2013-01-02 | 无锡莱吉特信息科技有限公司 | Sewer manhole cover |
| CN105246000A (en) * | 2015-10-28 | 2016-01-13 | 维沃移动通信有限公司 | Method for improving sound quality of headset and mobile terminal |
| CN205553852U (en) * | 2016-02-01 | 2016-09-07 | 珠海格力电器股份有限公司 | Outer machine of vehicle air conditioning and have its vehicle |
| CN206470029U (en) * | 2017-02-27 | 2017-09-05 | 安徽江淮汽车集团股份有限公司 | A kind of battery sealing-performance detecting system |
| CN108593219A (en) * | 2018-05-16 | 2018-09-28 | 珠海格力电器股份有限公司 | The sealing state detection method of air-conditioning duct, apparatus and system |
| CN109540411A (en) * | 2018-11-19 | 2019-03-29 | 合肥市极点科技有限公司 | A kind of motor vehicle skylight device for detecting sealability |
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2019
- 2019-12-23 CN CN201911334880.5A patent/CN110949094A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672818A (en) * | 1986-09-08 | 1987-06-16 | Intertherm Inc. | Three-member plastic rooftop air conditioner housing |
| CN102852217A (en) * | 2012-08-31 | 2013-01-02 | 无锡莱吉特信息科技有限公司 | Sewer manhole cover |
| CN105246000A (en) * | 2015-10-28 | 2016-01-13 | 维沃移动通信有限公司 | Method for improving sound quality of headset and mobile terminal |
| CN205553852U (en) * | 2016-02-01 | 2016-09-07 | 珠海格力电器股份有限公司 | Outer machine of vehicle air conditioning and have its vehicle |
| CN206470029U (en) * | 2017-02-27 | 2017-09-05 | 安徽江淮汽车集团股份有限公司 | A kind of battery sealing-performance detecting system |
| CN108593219A (en) * | 2018-05-16 | 2018-09-28 | 珠海格力电器股份有限公司 | The sealing state detection method of air-conditioning duct, apparatus and system |
| CN109540411A (en) * | 2018-11-19 | 2019-03-29 | 合肥市极点科技有限公司 | A kind of motor vehicle skylight device for detecting sealability |
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