CN110887171A - Control box of air conditioning unit and air conditioning unit - Google Patents
Control box of air conditioning unit and air conditioning unit Download PDFInfo
- Publication number
- CN110887171A CN110887171A CN201911203843.0A CN201911203843A CN110887171A CN 110887171 A CN110887171 A CN 110887171A CN 201911203843 A CN201911203843 A CN 201911203843A CN 110887171 A CN110887171 A CN 110887171A
- Authority
- CN
- China
- Prior art keywords
- air conditioning
- control box
- control
- conditioning unit
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control box of an air conditioning unit and the air conditioning unit, which comprises a controller for receiving an instruction of an upper computer to control the unit to automatically operate, a change-over switch for stopping the control of the controller to switch the control box to a manual operation mode, an adjusting switch for adjusting the frequency of a frequency converter in the manual operation mode, and a temperature control switch for switching off a unit control power supply when the temperature of chilled water exceeds a preset value. The invention can be switched to a manual mode, the temperature of the chilled water is collected as a protection condition in the manual mode to prevent a pipeline from being frozen, the refrigeration and heating quantity can be improved or reduced by manually adjusting the running frequency of the frequency converter, the invention can be applied to occasions with special requirements such as ships, nuclear power, data rooms and the like, the operation of a unit can still be ensured when a main board or an upper computer loses power or fails, and no major production loss can be caused.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a control box of an air conditioning unit and the air conditioning unit.
Background
At present, a main board, a PLC (programmable logic controller) or a DDC (direct digital control) device and the like are generally adopted for a large commercial unit, and the main board, the PLC or the DDC device and the like are controlled by an upper computer to ensure that the unit is effectively adjusted according to load so as to reach a preset refrigerating or heating temperature; once the main board or the upper computer fails, the brain of the unit is damaged, and the unit cannot be controlled to execute related commands.
But the environment that present commercial big unit used is more and more special, and along with scene applications such as data computer lab, industrial solution cooling, nuclear power cooling, naval vessel cooling, it is very high to the equipment requirement, mainboard or host computer damage also can not influence equipment normal operating, and the electric cabinet of traditional mode can not effectively satisfy.
Disclosure of Invention
The invention provides a control box of an air conditioning unit and the air conditioning unit, aiming at solving the technical problem that equipment cannot normally run after a main board or an upper computer is damaged in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides a control box of an air conditioning unit, which comprises a controller for receiving an instruction of an upper computer to control the unit to automatically operate, a change-over switch for stopping the control of the controller to switch the control box to a manual operation mode, an adjusting switch for adjusting the frequency of a frequency converter in the manual operation mode, and a temperature control switch for disconnecting a unit control power supply when the temperature of chilled water exceeds a preset value.
In a specific embodiment, the control box comprises a box body and a box door arranged on one side of the box body. The change-over switch, the regulating panel and the touch screen are all arranged on one side of the outward box door. And a power indicator light, an operation indicator light, a fault indicator light and a buzzer are also arranged on one outward side of the box door. And when the temperature of the chilled water exceeds a preset value, the buzzer gives an alarm.
Preferably, the adjusting switch is a multi-gear adjusting switch.
Preferably, the controller is a motherboard, a PLC, or a DDC.
The invention also provides an air conditioning unit, which comprises the control box, an upper computer for sending the instruction to control the controller in the automatic mode and a frequency converter capable of adjusting the frequency band through an adjusting switch in the manual mode.
Compared with the prior art, the invention can be switched to a manual mode, can prevent a pipeline from being frozen by collecting the temperature of chilled water as a protection condition in the manual mode, can improve or reduce the refrigerating and heating quantity by manually adjusting the running frequency of the frequency converter, can be applied to occasions with special requirements such as ships, nuclear power, data rooms and the like, can still ensure the running of a unit when a main board or an upper computer loses power or fails, and cannot cause great production loss.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an opening door according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a door side of the embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 2, the present invention provides a control box of an air conditioning unit, including: the controller 1, change over switch 2, regulating switch 3 and temperature detect switch 4, controller 1 can receive the instruction control unit automatic operation of host computer, change over switch 2 can stop the control access of controller, make the control box switch over to manual mode of operation, regulating switch 3 can be under manual mode of operation regulation converter frequency, temperature detect switch 4's sensing end sets up and detects the freezing temperature of water on freezing water pipe, temperature detect switch automatic disconnection unit's control power when detecting the freezing temperature of water and surpassing the default under manual mode. After the manual mode is switched, the temperature of the chilled water is collected as a protection condition, so that a pipeline can be prevented from being frozen, the machine can be stopped when a preset protection value is reached, the refrigerating and heating quantity can be improved or reduced by manually adjusting the running frequency of the frequency converter, the machine can be applied to special occasions such as ships, nuclear power and data rooms, the machine can still be ensured to run when a main board or an upper computer loses power or fails, and no major production loss is caused.
The control box comprises a box body and a box door arranged on one side of the box body, the change-over switch 2, the adjusting switch 3, the adjusting panel and the touch screen 5 are arranged on one side of the box door facing outwards, the touch screen, the power indicator lamp, the operation indicator lamp, the fault indicator lamp and the buzzer are further arranged on the outer side of the box door and connected with the controller, and the buzzer gives an alarm when the temperature of the freezing water exceeds a preset value.
The preset value of the temperature control switch can be set according to the operation condition of the unit, and when the operation is a refrigeration condition, the preset value is a refrigeration lower limit value; when the heating condition is operated, the preset value is an upper limit value of heating.
In a specific embodiment, the adjusting switch is a multi-gear adjusting switch, which is divided into four gears of 25%, 50%, 75% and 100%, and can be made according to other requirements. The controller is a motherboard, a PLC, or a DDC (direct digital control).
The invention also provides an air conditioning unit, which comprises the control box, an upper computer for sending the instruction to control the controller in the automatic mode and a frequency converter capable of adjusting the frequency band through an adjusting switch in the manual mode.
The specific operating conditions of the unit are as follows:
the automatic operation mode of the unit: the control box is provided with a controller and a touch screen (an upper computer), detection components and control signals on the unit are connected to the controller, the controller collects, analyzes and controls all operation data in a unified mode, and the upper computer is used for controlling the unit to be turned on and turned off and displaying all parameters and alarm information. When a relevant fault or parameter abnormality is detected, fault information is sent to the touch screen to be displayed, and the unit is controlled to stop so as to avoid damage to the unit.
The manual operation mode of the unit: when controller or touch-sensitive screen (host computer) break down, when damaging, can use the knob change over switch of "mode switch" on the chamber door to switch to manual operation, mainboard and touch-sensitive screen no longer participate in the control this moment, the unit is at the start operation of fixed frequency channel, the regulating switch of accessible "ability regulation" adjusts this moment, the reserve temperature detect switch of unit starts, carry out real time monitoring to unit refrigerated water temperature, when it surpasss the default in the temperature detect switch, can automatic disconnection unit's control power supply, guarantee the unit reliable operation in the safety range.
Under special conditions, the controller or the touch screen (upper computer) is not damaged, but can be switched to a manual control mode due to special occasions, at the moment, the touch screen and the controller of the unit lose control power and lose power, the unit is not involved in starting, stopping and controlling the unit, the capacity adjustment of the unit is controlled by the adjusting switch, the temperature control switch is synchronously started to monitor the temperature of the chilled water, and the chilled water is switched to a manual control process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an air conditioning unit's control box, is including the controller of the instruction control unit automatic operation who receives the host computer, its characterized in that still includes: and the temperature control switch is used for stopping the control of the controller to enable the control box to be switched to a manual operation mode, adjusting the frequency of the frequency converter in the manual operation mode, and switching off the unit control power supply when the temperature of the chilled water exceeds a preset value.
2. The control box of the air conditioning unit according to claim 1, wherein a touch screen connected to the controller is further provided outside the control box.
3. The control box of an air conditioning unit as set forth in claim 1, wherein the control box includes a box body and a box door provided at one side of the box body.
4. The control box of an air conditioning unit as set forth in claim 3, wherein said diverter switch, adjustment panel and touch panel are disposed on the side of the door facing outward.
5. The control box of air conditioning unit according to claim 3, wherein a power indicator, an operation indicator, a fault indicator and a buzzer are further provided on the outward side of the box door.
6. The control box of an air conditioning unit as set forth in claim 5, wherein the buzzer alarms when the temperature of the chilled water exceeds a preset value.
7. The control box of an air conditioning assembly as set forth in claim 1, wherein said adjustment switch is a multi-step adjustment switch.
8. The control box of an air conditioning unit according to claim 1, wherein the controller is a motherboard, a PLC, or a DDC.
9. An air conditioning assembly, characterized in that it comprises a control box according to any one of claims 1 to 8.
10. An air conditioning assembly as set forth in claim 9 including: the upper computer of the controller is controlled by sending instructions in the automatic mode, and the frequency converter of the frequency band can be adjusted by the adjusting switch in the manual mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911203843.0A CN110887171A (en) | 2019-11-29 | 2019-11-29 | Control box of air conditioning unit and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911203843.0A CN110887171A (en) | 2019-11-29 | 2019-11-29 | Control box of air conditioning unit and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110887171A true CN110887171A (en) | 2020-03-17 |
Family
ID=69749629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911203843.0A Withdrawn CN110887171A (en) | 2019-11-29 | 2019-11-29 | Control box of air conditioning unit and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110887171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665071A (en) * | 2020-06-18 | 2020-09-15 | 格力电器（武汉）有限公司 | Split type entropy detection test fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202734145U (en) * | 2012-07-30 | 2013-02-13 | 同方泰德国际科技(北京)有限公司 | Air conditioning unit energy saving control cabinet |
| CN204100503U (en) * | 2014-09-26 | 2015-01-14 | 中核（天津）机械有限公司 | A kind of air-conditioner set surface-cooler defroster |
| JP2015063227A (en) * | 2013-09-25 | 2015-04-09 | 株式会社デンソー | Air conditioner for vehicle |
| CN104833153A (en) * | 2014-02-11 | 2015-08-12 | 珠海格力电器股份有限公司 | Control circuit and method for marine water cooling unit |
| CN109059207A (en) * | 2018-06-14 | 2018-12-21 | 珠海格力电器股份有限公司 | Carrier frequency control method and device of air conditioning unit and variable frequency air conditioner |
-
2019
- 2019-11-29 CN CN201911203843.0A patent/CN110887171A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202734145U (en) * | 2012-07-30 | 2013-02-13 | 同方泰德国际科技(北京)有限公司 | Air conditioning unit energy saving control cabinet |
| JP2015063227A (en) * | 2013-09-25 | 2015-04-09 | 株式会社デンソー | Air conditioner for vehicle |
| CN104833153A (en) * | 2014-02-11 | 2015-08-12 | 珠海格力电器股份有限公司 | Control circuit and method for marine water cooling unit |
| CN204100503U (en) * | 2014-09-26 | 2015-01-14 | 中核（天津）机械有限公司 | A kind of air-conditioner set surface-cooler defroster |
| CN109059207A (en) * | 2018-06-14 | 2018-12-21 | 珠海格力电器股份有限公司 | Carrier frequency control method and device of air conditioning unit and variable frequency air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111665071A (en) * | 2020-06-18 | 2020-09-15 | 格力电器（武汉）有限公司 | Split type entropy detection test fixture |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200317 |