CN210861566U - Control device and system for temperature limiting protection - Google Patents

Control device and system for temperature limiting protection Download PDF

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Publication number
CN210861566U
CN210861566U CN201921310390.7U CN201921310390U CN210861566U CN 210861566 U CN210861566 U CN 210861566U CN 201921310390 U CN201921310390 U CN 201921310390U CN 210861566 U CN210861566 U CN 210861566U
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temperature
temperature limiter
circuit
limiter
fault type
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CN201921310390.7U
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Inventor
王宁
陈泽波
江标
张铭钊
植雄智
张凤梅
张奕强
郑贵金
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The utility model relates to a controlling means and system of limit for temperature protection, controlling means includes: the acquisition module is used for acquiring the working state and/or parameter information of the line; the fault type determining module is used for determining the fault type of the line according to the working state and/or the parameter information; and the processing module is used for carrying out corresponding fault processing according to the fault type. The utility model discloses in the circuit is established ties with the temperature limiter, the operating condition according to the temperature control circuit of part in the circuit that the temperature limiter can be sensitive in time. Controlling means passes through temperature limiter detecting system temperature to according to the operating condition of this temperature influence system circuit, can confirm the fault type of circuit according to this operating condition, and carry out corresponding fault handling. Controlling means simple structure can in time detect out the fault type to carry out corresponding processing according to the fault type, thereby be favorable to the reliable safe operation of better guarantee system line.

Description

Control device and system for temperature limiting protection
Technical Field
The utility model relates to a temperature protection control technical field, concretely relates to controlling means and system of limit for temperature protection.
Background
In order to ensure the reliable operation of the air conditioning system, the air conditioning system can increase temperature judgment control such as exhaust high temperature protection, compressor overload protection, overload protection and the like, and once the temperature reaches a preset upper limit value during the operation of the system, the system can be stopped to protect each part.
In the prior art, temperature values in most systems are detected through a temperature sensing bulb, but the temperature sensing bulb detection mode has the defect of high cost (including the total cost of a sensor and a corresponding circuit), the temperature sensing bulb has the problems of detection hysteresis and the like, and abnormal temperature cannot be detected in time, so that the reliable and safe operation of an air conditioning system is not guaranteed better.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to overcome the deficiencies in the prior art, and to provide a control device and system for temperature limiting protection.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a temperature limited protective control device comprising:
the acquisition module is used for acquiring the working state and/or parameter information of the line;
the fault type determining module is used for determining the fault type of the line according to the working state and/or the parameter information;
and the processing module is used for carrying out corresponding fault processing according to the fault type.
Optionally, the apparatus further comprises:
and the display module is used for displaying the fault type in a text, image or sound mode.
The utility model also provides a system, include:
a control device as hereinbefore described.
Optionally, the system is an air conditioning system.
Furthermore, the utility model discloses still provide another kind of system, include:
the circuit board with temperature limiter series connection.
Optionally, the circuit board is an air conditioner circuit board.
Optionally, the temperature limiter includes:
a first temperature limiter and a second temperature limiter;
the first temperature limiter is arranged on the side of the exhaust pipe and is connected with the pipe temperature sensing bulb of the outer condenser in series;
the second temperature limiter is arranged on the side of the compressor;
when the working state of the series circuit of the first temperature limiter is circuit disconnection, the circuit has high-temperature protection or overload protection fault;
and when the working state of the series circuit of the second temperature limiter is circuit disconnection, the circuit has overload protection fault of the compressor.
Optionally, the system further includes:
a temperature sensing bulb;
the temperature sensing bulb is connected with the circuit board in series after being connected with the temperature limiter in series.
Optionally, the temperature limiter includes:
a third temperature limiter and a fourth temperature limiter;
the third temperature limiter, the fourth temperature limiter and the temperature sensing bulb are sequentially connected in series and then are connected in series with the circuit board;
wherein the third temperature limiter is installed at the side of the exhaust pipe, and the fourth temperature limiter is installed at the top side or the inner side of the shell of the compressor.
Optionally, the temperature limiter is of a flat type or a cylindrical type.
Optionally, the thermal bulb is of a probe type or a cylinder type.
The utility model adopts the above technical scheme, the controlling means of limit for temperature protection includes: the acquisition module is used for acquiring the working state and/or parameter information of the line; the fault type determining module is used for determining the fault type of the line according to the working state and/or the parameter information; and the processing module is used for carrying out corresponding fault processing according to the fault type. Control device can according to the operating condition and/or the parameter information that the acquisition module acquireed the circuit, and pass through fault type confirms the module basis operating condition and/or the fault type of parameter information confirmed the circuit, has again processing module can confirm the fault type of circuit according to this operating condition to corresponding fault handling. Wherein, the circuit detects the temperature of the system through the temperature limiter. Control device simple structure, can in time detect out the fault type, avoided among the prior art the problem that the simplex adoption temperature sensing package detected to have detection hysteresis quality, this controlling means can also carry out corresponding processing according to the fault type to be favorable to the reliable safe operation of better guarantee circuit (for example air conditioning system circuit).
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram provided by a first embodiment of the temperature limiting protection control device of the present invention;
fig. 2 is a schematic structural diagram of a system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the system of the present invention;
fig. 4 is a schematic structural view of a temperature limiter according to the present invention;
fig. 5 is a schematic structural view of a thermal bulb according to the present invention;
fig. 6 is a schematic view of the connection between the temperature limiter and the thermal bulb according to the present invention.
In the figure: 1. an acquisition module; 2. a fault type determination module; 3. a processing module; 4. a display module; 5. a temperature limiter; 6. an air conditioner circuit board; 7. a thermal bulb.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram provided by a first embodiment of the temperature limiting protection control device of the present invention.
As shown in fig. 1, the control device for temperature limiting protection according to this embodiment includes:
the acquisition module 1 is used for acquiring the working state and/or parameter information of a line;
the fault type determining module 2 is used for determining the fault type of the line according to the working state and/or the parameter information;
and the processing module 3 is used for carrying out corresponding fault processing according to the fault type.
Further, the method also comprises the following steps:
and the display module 4 is used for displaying the fault type in a text, image or sound mode so as to remind maintenance personnel to carry out corresponding maintenance in time.
Further, the working state comprises: short circuit and open circuit of the circuit;
the parameter information includes: the resistance value of the line, the resistance value of the temperature sensing bulb and the temperature value of the component in the line.
Further, the fault types include: high temperature protection, overload protection, compressor overload protection, and temperature sensing bulb failure.
Further, the processing module 3 performs corresponding fault processing according to the fault type, and specifically includes:
when the fault type is high-temperature protection or overload protection, controlling the compressor to stop running so as to reduce the temperature of components in a line;
when the fault type is compressor overload protection, controlling the load of the compressor to stop working;
and when the fault type is the fault of the temperature sensing bulb, sending out the fault information in a text, image or sound mode.
The control device of this embodiment can obtain the working state and/or the parameter information of the line according to the obtaining module 1, and determine the fault type of the line according to the working state and/or the parameter information through the fault type determining module 2, and further the processing module 3 can determine the fault type of the line according to the working state and perform corresponding fault processing. Wherein the line detects the system temperature through a temperature limiter 5. Controlling means simple structure, can in time detect out the fault type, avoided among the prior art simple adoption temperature sensing package 7 to detect the problem that has the detection hysteresis quality, this controlling means can also carry out corresponding processing according to the fault type to be favorable to the reliable safe operation of better guarantee circuit.
The utility model also provides a system, include:
the control device as described in the previous embodiments.
Further, the system is an air conditioning system.
The air conditioning system adopting the control device can detect the fault type in time, and the problem of detection hysteresis caused by the fact that the temperature sensing bulb 7 is simply adopted for detection in the prior art is solved, so that reliable and safe operation of the air conditioning system is guaranteed better.
Fig. 2 is a schematic structural diagram of a system according to an embodiment of the present invention.
As shown in fig. 2, the system according to this embodiment includes:
the temperature limiter 5 and a circuit board connected in series with the temperature limiter 5.
Further, the circuit board is an air conditioner circuit board 6.
Further, the temperature limiter 5 includes:
a first temperature limiter and a second temperature limiter;
the first temperature limiter is arranged on the side of the exhaust pipe and is connected with the pipe temperature sensing bulb of the outer condenser in series;
the second temperature limiter is arranged on the side of the compressor;
when the working state of the series circuit of the first temperature limiter is circuit disconnection, the circuit has high-temperature protection or overload protection fault;
when the working state of the series circuit of the second temperature limiter is circuit disconnection, the circuit has a compressor overload protection fault;
when the resistance value of the line is smaller than that of the temperature sensing bulb and the working state is a short circuit of the line, the line has a temperature sensing bulb fault;
it should be noted that, the resistance of the circuit described herein being smaller than the resistance of the thermal bulb means: the resistance value of the circuit is far smaller than that of the temperature sensing bulb, for example, the resistance value of the circuit is smaller than one hundredth of the resistance value of the temperature sensing bulb.
As shown in fig. 4, the temperature limiter 5 shown in fig. 4(a) is of a flat type, and the temperature limiter 5 shown in fig. 4(b) is of a cylindrical type.
In the system described in this embodiment, the temperature limiter 5 is used instead of the bulb 7 as a temperature detection device, and the number of the temperature limiter 5 in the system may be one or more. The temperature limiter 5 is arranged on the exhaust pipeline or on the high-temperature side of the compressor and is tightly attached to the exhaust pipeline or the high-temperature side of the compressor, so that the accuracy of temperature detection is guaranteed. When the temperature reaches the action temperature of the temperature limiter 5 (which can be selected according to the actual condition of the system), the contacts in the temperature limiter 5 are disconnected, the circuit is in an open circuit state, and the system can take treatment measures to protect the system in time. When the detected temperature is reduced to the reset temperature value, the contacts inside the temperature limiter 5 are restored to the on state, and the line is in a path at the moment. The temperature limiter 5 is used for accurately detecting the temperature of the system and guaranteeing the safe and reliable operation of the system; in addition, the temperature limiter 5 is lower in cost and longer in service life than the thermal bulb 7, and a system using the temperature limiter 5 can save more cost, and also contributes to reducing a temperature detection circuit and miniaturizing a control board.
The system described in this embodiment can open circuit in time when the temperature of the line in the system is too high, and can detect the fault type in time, and avoid the problem that detection hysteresis exists in the prior art by simply adopting the thermal bulb 7, thereby being beneficial to better ensuring the reliable and safe operation of the system.
The utility model also provides another kind of implementation mode of a system.
As shown in fig. 3 to fig. 6, the system according to this embodiment includes:
the temperature limiter 5 and a circuit board connected in series with the temperature limiter 5.
Further, the method also comprises the following steps: a thermal bulb 7;
the temperature sensing bulb 7 is connected with the circuit board in series after being connected with the temperature limiter 5 in series.
Further, the temperature limiter 5 includes:
a third temperature limiter and a fourth temperature limiter;
the third temperature limiter, the fourth temperature limiter and the temperature sensing bulb 7 are sequentially connected in series and then are connected in series with the circuit board;
wherein the third temperature limiter is installed at the side of the exhaust pipe, and the fourth temperature limiter is installed at the top side or the inner side of the shell of the compressor.
As shown in fig. 4, the temperature limiter 5 shown in fig. 4(a) is of a flat type, and the temperature limiter 5 shown in fig. 4(b) is of a cylindrical type.
As shown in fig. 5, the bulb 7 shown in fig. 5(a) is cylindrical, and the bulb 7 shown in fig. 5(b) is probe-shaped.
The system described in this embodiment detects the temperature of the system by combining the temperature limiter 5 with the thermal bulb 7, and the number of the temperature limiter 5 in the system may be one or more (as shown in fig. 6(a) and 6 (b)). The temperature limiter 5 is arranged on the exhaust pipeline or on the high-temperature side of the compressor and is tightly attached to the exhaust pipeline or the high-temperature side of the compressor, so that the accuracy of temperature detection is guaranteed. When the temperature reaches the action temperature of the temperature limiter 5 (which can be selected according to the actual condition of the system), the contacts in the temperature limiter 5 are disconnected, the circuit is in an open circuit state, and the system can take treatment measures to protect the system in time. When the detected temperature is reduced to the reset temperature value, the contacts inside the temperature limiter 5 are restored to the on state, and the line is in a path at the moment.
Compare in temperature sensing package 7's resistance, temperature limiter 5's resistance is very little, and the influence to temperature sensing package 7 detection after establishing ties can be ignored, and temperature limiter 5's control is simple simultaneously, and the cost is also less than temperature sensing package 7, and consequently this kind of structure protection function that this embodiment disclosed is stronger, and the practicality is also higher, when taking into account to guarantee air conditioning system safe and reliable, can also realize reduce cost.
The system can accurately and timely detect the temperature of the system, can timely open the circuit when the temperature of a circuit in the system is too high, and can timely detect the fault type to perform corresponding processing, so that the safe and reliable operation of the system is guaranteed.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A control device of temperature limit protection is characterized by comprising:
the acquisition module is used for acquiring the working state and/or parameter information of the line;
the fault type determining module is used for determining the fault type of the line according to the working state and/or the parameter information;
and the processing module is used for carrying out corresponding fault processing according to the fault type.
2. The apparatus of claim 1, further comprising:
and the display module is used for displaying the fault type in a text, image or sound mode.
3. A system, comprising:
a control device as claimed in claim 1 or 2.
4. The system of claim 3, wherein the system is an air conditioning system.
5. A system, comprising:
the temperature limiter is connected with the circuit board in series;
wherein, the temperature limiter includes:
a first temperature limiter and a second temperature limiter;
the first temperature limiter is arranged on the side of the exhaust pipe and is connected with the pipe temperature sensing bulb of the outer condenser in series;
the second temperature limiter is arranged on the side of the compressor;
when the working state of the series circuit of the first temperature limiter is circuit disconnection, the circuit has high-temperature protection or overload protection fault;
and when the working state of the series circuit of the second temperature limiter is circuit disconnection, the circuit has overload protection fault of the compressor.
6. The system of claim 5, wherein the circuit board is an air conditioning circuit board.
7. The system of claim 6, further comprising:
a temperature sensing bulb;
the temperature sensing bulb is connected with the circuit board in series after being connected with the temperature limiter in series.
8. The system of claim 7, wherein the temperature limiter further comprises:
a third temperature limiter and a fourth temperature limiter;
the third temperature limiter, the fourth temperature limiter and the temperature sensing bulb are sequentially connected in series and then are connected in series with the circuit board;
wherein the third temperature limiter is installed at the side of the exhaust pipe, and the fourth temperature limiter is installed at the top side or the inner side of the shell of the compressor.
9. The system of any one of claims 5-8, wherein the temperature limiter is flat or cylindrical.
10. The system of claim 7 or 8, wherein the bulb is probe-type or cylinder-type.
CN201921310390.7U 2019-08-13 2019-08-13 Control device and system for temperature limiting protection Active CN210861566U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921310390.7U CN210861566U (en) 2019-08-13 2019-08-13 Control device and system for temperature limiting protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921310390.7U CN210861566U (en) 2019-08-13 2019-08-13 Control device and system for temperature limiting protection

Publications (1)

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CN210861566U true CN210861566U (en) 2020-06-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500711A (en) * 2019-08-13 2019-11-26 珠海格力电器股份有限公司 The control method of protected by temperature limitation, apparatus and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500711A (en) * 2019-08-13 2019-11-26 珠海格力电器股份有限公司 The control method of protected by temperature limitation, apparatus and system
CN110500711B (en) * 2019-08-13 2023-09-08 珠海格力电器股份有限公司 Temperature limiting protection control method, device and system

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