CN201923534U - Container refrigerating unit - Google Patents
Container refrigerating unit Download PDFInfo
- Publication number
- CN201923534U CN201923534U CN2010206843291U CN201020684329U CN201923534U CN 201923534 U CN201923534 U CN 201923534U CN 2010206843291 U CN2010206843291 U CN 2010206843291U CN 201020684329 U CN201020684329 U CN 201020684329U CN 201923534 U CN201923534 U CN 201923534U
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- unit
- temperature
- sensing probe
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- Expired - Fee Related
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- 238000005057 refrigeration Methods 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 24
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses container refrigeration unit is including warning suggestion device and the temperature-sensing probe of setting in the container box, this warning suggestion device and temperature-sensing probe connection director, and the signal transfer of this temperature-sensing probe is to the controller. The container refrigeration unit has an alarm prompt function when the temperature deviation is overlarge. When the unit has an alarm of overlarge temperature deviation, the alarm prompting device can operate to prompt a user that the unit is abnormal. The utility model discloses after the temperature in the container box of unit control exceeded the dead time with setting for the target value temperature deviation, this unit had the alarm suggestion, and buzzer long-horn to suggestion user's unit is unusual, needs in time to arrange the maintenance, avoids the goods to decrease.
Description
Technical field
The utility model relates to refrigerating field, refers in particular to the air-conditioning technical that is applied in the freight container.
Background technology
Existing freight container refrigeration unit is in the physicals transportation, the running condition of the unmanned unit of follow-up in real time, in the stockyard, whether general per 4 hours unit temperature of just can patrolling are unusual, aboard ship in the transportation, the running condition of general per 8 hours even 12 hours units of just can patrolling.Often in the interval of twice inspection, the temperature in the freight container and the target temperature value long time drift of setting are excessive, unmanned on-call maintenance and cause goods damage.
Therefore, at above-mentioned this hidden danger, provide a kind of freight container refrigeration unit that has the excessive prompt functions of temperature deviation, when above-mentioned situation occurring, unit can in time be reported to the police, and prompting user unit is unusual, guarantees on-call maintenance, avoids goods damage.
Summary of the invention
The purpose of this utility model is to provide a kind of and the temperature inside the box and target temperature deviation is occurring when excessive, and timely alarm effectively reduces the freight container refrigeration unit of goods damage.
For realizing the utility model purpose, provide following technical scheme:
The utility model freight container refrigeration unit comprises the alarm device and is arranged on temperature-sensing probe in the container body, and this alarm device is connected controller with temperature-sensing probe, and the signal of this temperature-sensing probe is sent to controller.This freight container refrigeration unit has the alarm prompt facility of temperature deviation when excessive.When unit had the excessive alarm of temperature deviation, this alarm device can operate, and is unusual with prompting user unit.This alarm device can adopt buzzer phone or jingle bell device or Warning light or other suggestion devices.
Can controlled target temperature T 0 be set according to customer requirement in this controller, reference time in the judgement temperature course and reference temperature etc.
Preferably, this alarm device is a buzzer phone, can be arranged in the container body also can be located at outside the casing.When unit had the excessive alarm of temperature deviation, buzzer phone can yowl, and is unusual with prompting user unit.
Preferably, this temperature-sensing probe comprises return air temperature-sensing probe and air-supply temperature-sensing probe.This return air temperature-sensing probe, air-supply temperature-sensing probe are equipped in the casing.
All the other functions of this freight container refrigeration unit are consistent with the standard container refrigerating unit.
This freight container refrigeration unit warning function operational process is roughly as follows:
(1) unit can be monitored the temperature inside the box value T in real time, and the span of general T is (30 ℃ ,+30 ℃), the controlled target temperature of unit is user's design temperature T0, the span of general T0 is (30 ℃ ,+30 ℃), and Δ T=T-T0 has reflected the size of temperature deviation in the freight container.
(2) unit can judge that unit should be in frozen mode operation or refrigeration mode operation automatically according to the target temperature T0 that the user sets.Generally speaking, when T0＜-10 ℃, unit is in the frozen mode operation, and when T0 〉=-10 ℃, unit is in the refrigeration mode operation.
Whether (3) when unit was in the frozen mode operation, unit can judge whether once continuous time, t1 reached in [T0-Ta, T0+ Ta] scope its return air temperature, be in the cooling operational process to judge unit.The span of t1 is generally that (5min, 60min), the span of Ta is generally (0.5 ℃, 2 ℃).If the unit return air temperature once reached above-mentioned scope interval, and at present the return air temperature of unit continuous time, t2 satisfied Δ T again Tc, it is excessive then to be judged as under the frozen mode temperature departure target temperature, unit can alarm, buzzer phone yowls.The span of t2 is generally that (30min, 150min), the span of Tc is generally (2 ℃, 8 ℃).
Whether (4) when unit was in the refrigeration mode operation, unit can judge whether once continuous time, t3 reached in [T0-Tb, T0+ Tb] scope its wind pushing temperature, be in the cooling operational process to judge unit.The span of t3 is generally that (5min, 60min), the span of Tb is generally (0 ℃, 0.5 ℃).If the unit blasting air temperature once reached above-mentioned scope interval, and at present the wind pushing temperature of unit continuous time, t4 satisfied Δ T again Td, it is excessive then to be judged as under the refrigeration pattern temperature departure target temperature, unit can alarm, buzzer phone yowls.The span of t4 is generally that (30min, 150min), the span of Tc is generally (0 ℃, 8 ℃).
The contrast prior art the utlity model has following advantage:
When the utility model moves under frozen mode or refrigeration pattern when freight container refrigeration unit, when temperature in the container body of unit control and target setting value temperature deviation excessive above behind the certain hour, this unit has the alarm prompting, buzzer phone yowls, unusual with prompting user unit, need in time to arrange maintenance, avoid goods damage.
Description of drawings
Fig. 1 is the scheme drawing of the utility model freight container refrigeration unit;
Fig. 2 is the scheme of installation of return air temperature-sensing probe of the present utility model and air-supply temperature-sensing probe;
Fig. 3 is the scheme of installation of controller of the present utility model and buzzer phone;
The flow process view that Fig. 4 reports to the police for the utility model temperature-sensitive.
The specific embodiment
See also Fig. 1 ~ 3, the utility model freight container refrigeration unit includes compressor 1, air-inlet grille 2, panel 3, access door 4, fresh wind port 5 and control box 6, establish controller 7 in the control box, further comprise the return air temperature-sensing probe 10 that is arranged on the return air place, be arranged on the air-supply temperature-sensing probe 20 of air-supply place, and buzzer phone 8.
This buzzer phone 8, return air temperature-sensing probe 10, air-supply temperature-sensing probe 20 all connect controller 7, and the signal of this temperature-sensing probe is sent to controller.This freight container refrigeration unit has the alarm prompt facility of temperature deviation when excessive.When unit had the excessive alarm of temperature deviation, buzzer phone 8 yowled, and is unusual with prompting user unit.
Can controlled target temperature T 0 be set according to customer requirement in this controller, reference time in the judgement temperature course and reference temperature etc.
See also Fig. 4, the temperature-sensitive alarm flow is as follows:
(1) behind the unit operation, detects user's design temperature T0.Unit can be monitored the temperature inside the box value T in real time, and the span of general T is (30 ℃ ,+30 ℃), the controlled target temperature of unit is user's design temperature T0, the span of general T0 is (30 ℃ ,+30 ℃), and Δ T=T-T0 has reflected the size of temperature deviation in the freight container.
(2) unit can judge that unit should be in frozen mode operation or refrigeration mode operation automatically according to the target temperature T0 that the user sets.Generally speaking, when T0＜-10 ℃, unit is in the frozen mode operation, and when T0 〉=-10 ℃, unit is in the refrigeration mode operation.
Whether (3) when unit was in the frozen mode operation, unit can judge whether once continuous time, 30min reached in [T0-1 ℃, 1 ℃ of T0+] scope its return air temperature, be in the cooling operational process to judge unit.If the unit return air temperature once reached above-mentioned scope interval, and at present the return air temperature of unit continuous time, 90min satisfied Δ T again 5 ℃, it is excessive then to be judged as under the frozen mode temperature departure target temperature, unit can alarm, buzzer phone yowls.
Whether (4) when unit was in the refrigeration mode operation, unit can judge whether once continuous time, 30min reached in [T0-0.25 ℃, 0.25 ℃ of T0+] scope its wind pushing temperature, be in the cooling operational process to judge unit.If the unit blasting air temperature once reached above-mentioned scope interval, and at present the wind pushing temperature of unit continuous time, 90min satisfied Δ T again 2 ℃, it is excessive then to be judged as under the refrigeration pattern temperature departure target temperature, unit can alarm, buzzer phone yowls.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (3)
1. freight container refrigeration unit is characterized in that, it comprises the alarm device and be arranged on temperature-sensing probe in the container body, and this alarm device is connected controller with temperature-sensing probe, and the signal of this temperature-sensing probe is sent to controller.
2. freight container refrigeration unit as claimed in claim 1 is characterized in that this alarm device is a buzzer phone.
3. freight container refrigeration unit as claimed in claim 1 is characterized in that this temperature-sensing probe comprises return air temperature-sensing probe and air-supply temperature-sensing probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206843291U CN201923534U (en) | 2010-12-28 | 2010-12-28 | Container refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206843291U CN201923534U (en) | 2010-12-28 | 2010-12-28 | Container refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201923534U true CN201923534U (en) | 2011-08-10 |
Family
ID=44427400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206843291U Expired - Fee Related CN201923534U (en) | 2010-12-28 | 2010-12-28 | Container refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201923534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2010
- 2010-12-28 CN CN2010206843291U patent/CN201923534U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |