CN202483336U - Safety control system for a cold-storage door - Google Patents
Safety control system for a cold-storage door Download PDFInfo
- Publication number
- CN202483336U CN202483336U CN2012200391514U CN201220039151U CN202483336U CN 202483336 U CN202483336 U CN 202483336U CN 2012200391514 U CN2012200391514 U CN 2012200391514U CN 201220039151 U CN201220039151 U CN 201220039151U CN 202483336 U CN202483336 U CN 202483336U
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- storage door
- controller
- control system
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Abstract
The utility model discloses a safety control system which is simple in structure, high in safety, and diversified and highly sensitive in security detection, and is used for a cold-storage door. The safety control system for the cold-storage door mainly comprises a controller and a motor. The motor drives the cold-storage door to open or to close, and is connected with a working power supply through the controller. The controller comprises a power supply end, a drive circuit and an arithmetic circuit, wherein the power supply end, the drive circuit and the arithmetic circuit are sequentially connected. The arithmetic circuit is connected with a circuit detection circuit for detecting the circuit of a converter and a speed detection circuit for detecting the frequency of the converter, and the circuit detection circuit and the speed detection circuit are respectively connected with the converter of the motor.
Description
Technical field
The utility model relates to cold-storage door, concrete relates to a kind of cold-storage door safety control system.
Background technology
Present cold-storage door adopts hand push button to carry out the switch motion of cold-storage door mostly.Exist some potential safety hazards in the mode of cold-storage door through hand push button switch door.The speed that at first is the switch door is uncontrollable, in the process of closing the door, if there is the staff to pass in and out freezer, so just the accident that the staff is crushed might take place; On the other hand, the emergency measure of common cold-storage door outage generally all is a knob, when the people is trapped in the freezer, generally forces the action of opening the door through rotating urgent spanner; Because emergency knob has its application life, therefore need often it to be checked simultaneously.The product of our company mainly is to above 2 points in the design of secure context, avoids the generation of the accident that the staff is crushed in switch door process on the one hand; After having the people to be trapped in the incident in the freezer, trapped personnel can very easily be opened cold-storage door, and does not worry being trapped in the freezer on the other hand.
The utility model content
To the deficiency of above-mentioned prior art, the purpose of the utility model aims to provide a kind of simple in structure, degree of safety is high, safety detection is diversified, safety detection is highly sensitive cold-storage door safety control system.
For solving the problems of the technologies described above, realize above-mentioned technique effect, the utility model adopts following technical scheme:
A kind of cold-storage door safety control system; Mainly comprise controller and motor; The switch motion of said motor-driven cold-storage door, and through said controller connection working power, said controller comprises power end, drive circuit and the computing circuit that connects successively; Said computing circuit is connected with current detection circuit that is used to detect inverter current and the velocity checking circuits that is used to detect frequency converter frequency, and said current detection circuit and velocity checking circuits are connected the frequency converter of said motor respectively.
The cold-storage door safety control system of the utility model mainly comprises two functions:
One, pinch resistant functionality
1, the overcurrent judgement sandwiches function
When cold-storage door had object to be clamped, the electric current of the frequency converter of electrode increased, through the detection of current detection circuit, and the action of when increasing to the electric current of our setting, opening the door, thus prevent unexpected injury.
In the process of cold-storage door operation; The cold-storage door safety control system of the utility model is the current electric current of monitoring in real time; And compare with the overcurrent parameter of setting; The situation of motor rotation blockage will get into the action of opening the door automatically in case there is the people to be clamped perhaps, thereby can avoid the injury that meets accident.
2, the slippage judgement sandwiches function
When cold-storage door in when operation; In case when having object to be clamped; The frequency of the frequency converter of the electrode of current operation will reduce, and through the detection of velocity checking circuits, to a certain degree promptly judges have object to be clamped when being reduced to; Thereby make cold-storage door get into the action of opening the door, thereby can avoid the injury that meets accident.
Two, power-off survival function
The cold-storage door safety control system of the utility model is when operate as normal, and controller can be guaranteed the operate as normal of cold-storage door through holding frequency.
After in case the situation of outage takes place; The maintenance function of frequency converter promptly lost efficacy; Though this moment cold-storage door still be in close the position, but no longer include holding torque, if so have the staff to be trapped in the freezer; The staff can open cold-storage door easily, and needn't worry to be trapped in the freezer.
Compared with prior art, the technical scheme of the utility model has following beneficial effect:
1) simple in structure
Compare with other controllers, adopt the cold-storage door of the system of the utility model aspect security protection, not need to append again the safety that some other equipment guarantees the staff.The parameter that only need set controller anti-pinch aspect can be carried out highly sensitive anti-pinch detection.
2) degree of safety is higher
After power cut-off incident took place, general controller need be through the emergency knob action of opening the door, thereby avoids the staff to be trapped in the freezer.In order to ensure staff's safety, after outage, the system of the utility model promptly loses effectiveness to the control of motor, and the staff just can be easily draws back cold-storage door inside again like this, and does not worry being trapped in the freezer.
3) safety detection variation
The cold-storage door user can carry out dual safety detection through setting overcurrent and slippage, thereby avoid occurring the situation of erroneous detection according to the demand of oneself.
4) safety detection is highly sensitive
The detection sensitivity of the system of the utility model aspect anti-pinch is very high.In case judging has object to sandwich, the controller action of opening the door immediately, thus can effectively avoid the staff to crush.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of manual, below this patent is elaborated with the preferred embodiment and the conjunction with figs. of the utility model.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the systematic schematic diagram of the utility model.
The specific embodiment
Describe in detail below in conjunction with the preferred embodiment of accompanying drawing to the utility model.
Referring to shown in Figure 1; A kind of cold-storage door safety control system; Mainly comprise controller 9 and motor 8; Said motor 8 drives the switch motion of cold-storage door, and connects working power through said controller 9, and said controller 9 comprises power end 1, drive circuit 3 and the computing circuit 3 that connects successively; Said computing circuit 3 is connected with current detection circuit 4 that is used to detect inverter current and the velocity checking circuits 5 that is used to detect frequency converter frequency, and said current detection circuit 4 and velocity checking circuits 5 are connected the frequency converter of said motor 8 respectively.
Further, said controller 9 also comprises I/O circuit 6, and said I/O circuit 6 connects said computing circuit 3.
Further, said controller 9 also comprises holding circuit 7, and said holding circuit 7 connects said computing circuit 3.
More than the utility model embodiment has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum; This description should not be construed as the restriction to the utility model, and all any changes of being made according to the utility model design philosophy are all within the protection domain of the utility model.
Claims (3)
1. cold-storage door safety control system; Mainly comprise controller (9) and motor (8); Said motor (8) drives the switch motion of cold-storage door; And through said controller (9) connection working power; It is characterized in that: said controller (9) comprises successively power end (1), drive circuit (2) and the computing circuit (3) that connects, and said computing circuit (3) is connected with current detection circuit (4) that is used to detect inverter current and the velocity checking circuits (5) that is used to detect frequency converter frequency, and said current detection circuit (4) and velocity checking circuits (5) are connected the frequency converter of said motor (8) respectively.
2. cold-storage door safety control system according to claim 1 is characterized in that: said controller (9) also comprises I/O circuit (6), and said I/O circuit (6) connects said computing circuit (3).
3. cold-storage door safety control system according to claim 1 and 2 is characterized in that: said controller (9) also comprises holding circuit (7), and said holding circuit (7) connects said computing circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200391514U CN202483336U (en) | 2012-02-08 | 2012-02-08 | Safety control system for a cold-storage door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200391514U CN202483336U (en) | 2012-02-08 | 2012-02-08 | Safety control system for a cold-storage door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483336U true CN202483336U (en) | 2012-10-10 |
Family
ID=46957765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200391514U Expired - Fee Related CN202483336U (en) | 2012-02-08 | 2012-02-08 | Safety control system for a cold-storage door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795032A (en) * | 2012-10-29 | 2014-05-14 | 北汽福田汽车股份有限公司 | Detection device and detection method of motor stalling |
-
2012
- 2012-02-08 CN CN2012200391514U patent/CN202483336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795032A (en) * | 2012-10-29 | 2014-05-14 | 北汽福田汽车股份有限公司 | Detection device and detection method of motor stalling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU MCONT CONTROL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SUZHOU HENGXIANG AUTOMATION EQUIPMENT ENGINEERING CO., LTD. Effective date: 20130903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: Zhongshan road Wuzhong District Mudu town of Suzhou city in Jiangsu province 215000 No. 70 Patentee after: Suzhou Mokang Control Technology Co., Ltd. Address before: 215000, Room 201, C building, 31 Soochow North Road Science Park, Suzhou, Jiangsu, Wuzhong District Patentee before: Suzhou Hengxiang Automation Equipment Engineering Limited |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20160208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |