CN110702436A - Outer quick-witted detection device - Google Patents
Outer quick-witted detection device Download PDFInfo
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- CN110702436A CN110702436A CN201910777073.4A CN201910777073A CN110702436A CN 110702436 A CN110702436 A CN 110702436A CN 201910777073 A CN201910777073 A CN 201910777073A CN 110702436 A CN110702436 A CN 110702436A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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Abstract
The invention belongs to the field of air conditioners, and particularly relates to an external unit detection device. The invention aims to solve the problems that when an external machine is detected, heat exchange is carried out between an evaporator of the internal machine and air, the transfer rate of heat in the air is low, and the detection time is long. The outdoor unit detection device comprises a heat exchange device and driving equipment. The heat exchange device comprises: the system comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates; the heat exchange plates are arranged in parallel at intervals, each heat exchange plate is provided with a first mounting hole and a second mounting hole, a first pipeline is arranged in each first mounting hole in a penetrating manner, and a second pipeline is arranged in each second mounting hole in a penetrating manner; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline. Through the setting, carry out heat exchange through the heat transfer board between first pipeline and the second pipeline, heat transfer is very fast, compares with the temperature through detecting the interior machine air outlet of detection, can shorten check-out time.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to an external unit detection device.
Background
Air conditioners generally include an inner unit and an outer unit; among them, the outdoor unit is usually installed outdoors to exchange heat with the external environment, and the indoor unit is usually installed indoors; the outdoor unit comprises a condenser and a compressor, the indoor unit comprises an evaporator, the condenser is communicated with the evaporator, and the compressor is communicated with the condenser and the evaporator to drive a refrigerant to flow in the condenser and the evaporator, so that refrigeration or heating is realized. During machining, an inner machine and an outer machine of the air conditioner are separately machined, and the outer machine needs to be detected after the outer machine is machined, so that the quality of the outer machine is guaranteed; specifically, the external unit is usually detected by detecting the internal unit, during detection, the external unit is connected with the detection internal unit, then the detection internal unit and the external unit are started to refrigerate, and meanwhile, the temperature of the air outlet of the detection internal unit is obtained, and if the temperature of the air outlet can reach a preset value (such as 15 ℃), the external unit is good.
In the detection process of the external unit, detecting heat exchange between an evaporator in the internal unit and air so as to change the temperature of an air outlet of the internal unit; because the heat transfer rate in the air is slower, the temperature of the air outlet can reach the preset value after a period of time, and the detection time is longer.
Accordingly, there is a need in the art for a new external machine detection device to solve the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that when the existing external machine is detected, heat exchange is performed between the evaporator of the internal machine and the air, so as to change the temperature of the air outlet opening of the internal machine, the transfer rate of heat in the air is slow, the temperature of the air outlet can reach a predetermined value after a period of time, and the detection time is long, an embodiment of the present invention provides an external machine detection apparatus, including: heat transfer device and drive apparatus, heat transfer device includes: the temperature detection device comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates, wherein the first pipeline is used for being communicated with an external machine, the second pipeline is communicated with driving equipment, and the driving equipment is used for driving a liquid detection medium to flow in the second pipeline; the heat exchange plates are arranged in parallel at intervals, each heat exchange plate is provided with a first mounting hole and a second mounting hole, the first pipeline penetrates through the first mounting hole, and the second pipeline penetrates through the second mounting hole; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline.
In a preferred technical solution of the above-mentioned external machine detection device, the first pipeline includes a first pipe segment and a second pipe segment which are arranged in parallel, and a third pipe segment which connects the first pipe segment and the second pipe segment, the heat exchange plate is further provided with a third installation hole which is parallel to a center line of the first installation hole, the first pipe segment is inserted into the first installation hole, and the second pipe segment is inserted into the third installation hole.
In a preferred technical solution of the above-mentioned external machine detection device, the second pipeline includes a fourth pipe section and a fifth pipe section which are arranged in parallel, and a sixth pipe section which connects the fourth pipe section and the fifth pipe section, the heat exchange plate is further provided with a fourth mounting hole which is parallel to the center line of the second mounting hole, the fourth pipe section is inserted into the second mounting hole, and the fifth pipe section is inserted into the fourth mounting hole.
In a preferred technical solution of the outdoor unit detecting device, the heat exchanging device further includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are parallel to the heat exchanging plate, and each of the heat exchanging plates is located between the first fixing plate and the second fixing plate; a first through hole, a second through hole, a third through hole and a fourth through hole are formed in the first fixing plate and the second fixing plate respectively, the first through hole is over against the first mounting hole, the second through hole is over against the second mounting hole, the third through hole is over against the third mounting hole, and the fourth through hole is over against the fourth mounting hole; the first pipe section is further arranged in the first through hole in a penetrating mode, the second pipe section is further arranged in the third through hole in a penetrating mode, the fourth pipe section is further arranged in the second through hole in a penetrating mode, and the fifth pipe section is further arranged in the fourth through hole in a penetrating mode.
In the above preferred technical solution of the outdoor unit detecting device, the heat exchanging device further includes a housing, the housing is enclosed outside the heat exchanging plate, and the housing, the first fixing plate and the second fixing plate are enclosed to form a containing cavity for containing the heat exchanging plate.
In a preferred embodiment of the above-described external machine detection apparatus, the driving device includes a delivery pump and a liquid storage tank; the inlet of the delivery pump is communicated with the liquid storage tank, the outlet of the delivery pump is communicated with the inlet of the second pipeline, and the outlet of the second pipeline is communicated with the liquid storage tank; the liquid storage tank is used for storing the liquid detection medium.
In a preferred embodiment of the above-described external unit detecting device, the external unit detecting device further includes: the controller is electrically connected with the identification device and the delivery pump, and the identification device is used for identifying a mark on an external machine; and the controller controls the flow of the delivery pump according to the identification identified by the identification device.
In a preferred embodiment of the above-mentioned external unit detection device, the temperature detection device includes temperature sensors disposed at the inlet and the outlet of the second duct, and the temperature sensors are electrically connected to the controller.
In a preferred embodiment of the above-described external unit detecting device, the external unit detecting device further includes: and the prompting device is electrically connected with the controller, the controller calculates the temperature difference between the inlet and the outlet of the second pipeline, and when the temperature difference reaches a preset value, the controller controls the prompting device to send out prompting information.
In a preferred technical solution of the above-mentioned external unit detecting device, the heat exchange plate is a copper plate.
As can be understood by those skilled in the art, the external machine detection device according to the embodiment of the present invention includes a heat exchange device and a driving apparatus. The heat exchange device comprises: the system comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates, wherein the first pipeline is communicated with an outdoor unit, and the second pipeline is communicated with a driving device; the heat exchange plates are arranged in parallel at intervals, each heat exchange plate is provided with a first mounting hole and a second mounting hole, a first pipeline is arranged in each first mounting hole in a penetrating manner, and a second pipeline is arranged in each second mounting hole in a penetrating manner; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline. Through the setting, carry out heat exchange through the heat transfer board between first pipeline and the second pipeline, heat transfer is very fast, compares with the temperature through detecting the interior machine air outlet of detection, can shorten check-out time.
Drawings
Hereinafter, a preferred embodiment of the outdoor unit detecting device according to the present invention will be described in conjunction with an outdoor unit of an air conditioner with reference to the accompanying drawings. The attached drawings are as follows:
fig. 1 is a schematic structural diagram of a heat exchange device in a detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a heat exchanging device in the detecting device according to an embodiment of the present invention.
Description of reference numerals:
10: a heat exchange device;
101: a heat exchange plate;
102: a first fixing plate;
103: a second fixing plate;
1011: a first mounting hole;
1012: a second mounting hole;
1013: a third mounting hole;
1021: a first through hole;
1022: a second through hole;
1023: a third through hole;
1024: a fourth via hole;
20: a compressor;
30: a liquid storage separator;
40: a four-way valve;
50: a condenser;
60: a throttling device;
70: a first external pipe;
80: and a second outer connecting pipe.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the outdoor unit detecting device of the present invention is described in conjunction with an outdoor unit of an air conditioner, this is not a limitation, and other detecting scenarios of cooling or heating equipment may be configured with the outdoor unit detecting device of the present invention.
Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or a member must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Air conditioners generally include an inner unit and an outer unit; among them, the outdoor unit is usually installed outdoors to exchange heat with the external environment, and the indoor unit is usually installed indoors; the outdoor unit comprises a condenser and a compressor, the indoor unit comprises an evaporator, the condenser is communicated with the evaporator, and the compressor is communicated with the condenser and the evaporator to drive a refrigerant to flow in the condenser and the evaporator, so that refrigeration or heating is realized. During machining, an inner machine and an outer machine of the air conditioner are separately machined, and the outer machine needs to be detected after the outer machine is machined, so that the quality of the outer machine is guaranteed; specifically, the external unit is usually detected by detecting the internal unit, during detection, the external unit is connected with the detection internal unit, then the detection internal unit and the external unit are started to refrigerate, and meanwhile, the temperature of the air outlet of the detection internal unit is obtained, and if the temperature of the air outlet can reach a preset value (such as 15 ℃), the external unit is good.
Detecting heat exchange between an evaporator in the inner machine and air, and further changing the temperature of an air outlet of the inner machine; because the heat transfer rate in the air is slower, the temperature of the air outlet can reach the preset value after a period of time, and the detection time is longer.
The preferred technical solution of the outdoor unit detecting device of the present invention will be described below with reference to the above air conditioner.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a heat exchange device in a detection apparatus according to an embodiment of the present invention; fig. 2 is a schematic connection diagram of a heat exchanging device in the detecting device according to an embodiment of the present invention. As shown in fig. 1 and 2, an external unit detection device according to an embodiment of the present invention specifically includes: heat transfer device 10 and drive arrangement, heat transfer device 10 includes: the temperature detection device comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates 101, wherein the first pipeline is used for being communicated with an external machine, the second pipeline is communicated with a driving device, and the driving device is used for driving a liquid detection medium to flow in the second pipeline.
The heat exchange plates 101 are arranged in parallel at intervals, each heat exchange plate 101 is provided with a first mounting hole 1011 and a second mounting hole 1012, a first pipeline is arranged in the first mounting hole 1011 in a penetrating manner, and a second pipeline is arranged in the second mounting hole 1012 in a penetrating manner; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline.
In this embodiment, the heat exchange plate 101 is plate-shaped, the heat exchange plate 101 is used for exchanging heat between the first pipeline and the second pipeline, and the heat exchange plate 101 may be a metal plate because the heat is transferred at a high rate in metal; preferably, the heat exchange plate 101 may be a copper plate, but of course, the heat exchange plate 101 may also be an aluminum alloy plate or a steel plate, etc.
With continued reference to fig. 2, in this embodiment, the external unit may include: the outdoor unit is provided with a first external connecting pipe 70 communicated with the throttling device 60, the first throttling device 60 is communicated with a first end of the condenser 50, a second end of the condenser 50 is communicated with the four-way valve 40, the outdoor unit is further provided with a second external connecting pipe 80, the second external connecting pipe 80 is communicated with the four-way valve 40, an inlet of the compressor 20 is communicated with an outlet of the liquid storage separator 30, and an outlet of the compressor 20 and an inlet of the liquid storage separator 30 are communicated with the four-way valve 40. It should be noted that the first external connection pipe 70 and the second external connection pipe 80 are two pipelines for connecting the external unit and the internal unit; further, a shut valve is provided on each of the first extension pipe 70 and the second extension pipe 80 to control opening and closing of the first extension pipe 70 and the second extension pipe 80.
Specifically, the first pipeline is communicated with the external machine, the inlet of the first pipeline is communicated with the first external connection pipe 70, and the outlet of the first pipeline is communicated with the second external connection pipe 80. In the refrigeration process, the four-way valve 40 controls the outlet of the compressor 20 to be communicated with the second end of the condenser 50, and the second external connecting pipe 80 is communicated with the inlet of the liquid storage separator 30; during operation, the compressor 20 injects a high-pressure gaseous refrigerant into the condenser 50, the refrigerant is gradually liquefied in the condenser 50, and then the refrigerant flows into the first pipeline through the throttling device 60, and is gasified in the first pipeline, so as to realize refrigeration. In the heating process, the four-way valve 40 controls the outlet of the compressor 20 to be communicated with the second external connection pipe 80, and the inlet of the liquid storage separator 30 is communicated with the second end of the condenser 50; when the air conditioner works, the compressor 20 injects high-pressure gaseous refrigerant into the first pipeline, the refrigerant is liquefied in the first pipeline, and then heat is released, so that heating is realized; then, the refrigerant flows into the condenser 50 through the throttle device 60, the refrigerant is gasified in the condenser 50, and the gasified refrigerant flows into the inlet of the compressor 20 through the accumulator 30. Specifically, the outdoor unit can change the flow direction of the refrigerant through the four-way valve 40, thereby realizing the switching between cooling and heating.
In this embodiment, preferably, a first valve is disposed at an inlet of the first pipeline, and a second valve is disposed at an outlet of the first pipeline, so that when the first pipeline is separated from the external unit, the first valve and the second valve are closed, so as to prevent the residual refrigerant in the first pipeline from flowing out.
In this embodiment, a plurality of heat exchangers 10 may be provided, each heat exchanger 10 corresponds to a refrigerant of different material, and during the detection, the heat exchanger 10 that is the same as the refrigerant in the external unit is selected for detection, so as to prevent the refrigerant remaining in the heat exchanger 10 from being different from the refrigerant in the external unit, thereby affecting the operation of the external unit.
In this embodiment, the first pipe is inserted into the first installation hole 1011 of each heat exchange plate 101, the second pipe is inserted into the second installation hole 1012 of each heat exchange plate 101, and the first pipe and the second pipe exchange heat through the heat exchange plates 101; in the process of refrigeration, the temperature of the first pipeline is reduced, the temperature of the liquid detection medium in the second pipeline is reduced, in the process of heating, the temperature of the first pipeline is increased, and the temperature of the liquid detection medium in the second pipeline is increased.
Specifically, Q ═ MC (T1-T2) ═ MC (T1-T2) where: q is the heat of exchange between first pipeline and the second pipeline, and M is the refrigerant flow in the first pipeline, and C is the specific heat capacity of refrigerant, and M is the flow of liquid detection medium in the second pipeline, and C is the specific heat capacity of liquid detection medium. According to the formula, the heat released by the first pipeline is equal to the heat absorbed by the second pipeline, and the heat absorbed by the first pipeline is equal to the heat released by the second pipeline; therefore, when the outdoor unit with the same power is detected, the flow rates of the liquid detection media in the second pipeline are the same, and whether the outdoor unit is qualified or not can be judged by comparing the temperature difference of the liquid detection media at the inlet and the outlet of the second pipeline.
In this embodiment, the liquid detection medium may be made of various materials, for example: the liquid detection medium may be water, oil, or other liquid. In particular, the driving device may be a delivery pump in communication with the second conduit to inject the liquid detection medium into the second conduit through the delivery pump to drive the liquid detection medium to flow within the second conduit.
In this embodiment, the temperature detection device is disposed on the second pipeline and configured to detect temperatures of the inlet and the outlet of the second pipeline, so as to obtain a temperature difference between the liquid detection medium at the inlet and the liquid detection medium at the outlet of the second pipeline, if the temperature difference reaches a preset value, the external unit communicated with the first pipeline is qualified, and if the temperature difference does not reach the preset value, the external unit communicated with the first pipeline is unqualified.
In this embodiment, the preset value is the minimum value of the temperature difference between the liquid detection media at the inlet and the outlet of the corresponding second pipeline when the external unit is qualified. Specifically, the preset value can be set according to the power of the external unit, and the larger the power of the external unit is, the larger the preset value is; the corresponding preset values of the outdoor units with the same power in the processes of refrigeration and heating can be the same or different. It should be noted that the preset values corresponding to the external units with the same power are equal.
Specifically, the temperature detection device may include thermometers disposed at the inlet and the outlet of the second pipeline, and the temperature of the liquid detection medium corresponding to the inlet and the outlet of the second pipeline may be read by the thermometers, so as to obtain a temperature difference between the liquid detection medium at the inlet and the liquid detection medium at the outlet of the second pipeline; it should be noted that the detecting end of the thermometer needs to be tightly attached to the side wall of the second pipeline to ensure the accuracy of the detection.
The temperature detecting device of the present embodiment preferably includes temperature sensors disposed at the inlet and the outlet of the second pipe, and for example, the temperature sensors may be disposed on outer walls of the inlet and the outlet of the second pipe to obtain temperatures of the liquid detection medium at the inlet and the outlet of the second pipe by detecting the temperature of the second pipe. Further, in order to improve the accuracy of temperature detection, temperature sensors may be disposed inside the inlet and outlet of the second pipe so that the temperature sensors are directly in contact with the liquid detection medium.
The detection process of the external unit detection device provided by the embodiment is as follows: communicating an inlet of a first pipeline with a first external connecting pipe 70 of an external unit, communicating an outlet of the first pipeline with a second external connecting pipe 80 of the external unit, then starting the external unit to refrigerate, and inputting a refrigerant into the first pipeline by the external unit at the moment so as to reduce the temperature of the first pipeline; meanwhile, the driving device drives the liquid detection medium to flow in the second pipeline, and the first pipeline and the second pipeline exchange heat through the heat exchange plate 101, so that the temperature of the liquid detection medium in the second pipeline is reduced; the temperature detection device detects the temperature of the inlet and the outlet of the second pipeline, if the temperature difference value of the inlet and the outlet of the second pipeline reaches a preset value, the external unit is qualified, and if the temperature difference value of the inlet and the outlet of the second pipeline cannot reach the preset value, the external unit is unqualified. Certainly, the outdoor unit can also perform heating, and at the moment, the outdoor unit inputs a refrigerant into the first pipeline to further raise the temperature of the first pipeline; meanwhile, the driving device drives the liquid detection medium to flow in the second pipeline, and the first pipeline and the second pipeline exchange heat through the heat exchange plate 101, so that the temperature of the liquid detection medium in the second pipeline is increased; the temperature detection device detects the temperature of the inlet and the outlet of the second pipeline, if the temperature difference value of the inlet and the outlet of the second pipeline reaches a preset value, the external unit is qualified, and if the temperature difference value of the inlet and the outlet of the second pipeline cannot reach the preset value, the external unit is unqualified.
The embodiment provides an external unit detection device, wherein a first pipeline is communicated with an external unit, and a second pipeline is communicated with circulating equipment; the heat exchange plates 101 are arranged in parallel, each heat exchange plate 101 is provided with a first mounting hole 1011 and a second mounting hole 1012, a first pipeline is arranged in each first mounting hole 1011 in a penetrating manner, and a second pipeline is arranged in each second mounting hole 1012 in a penetrating manner; carry out heat exchange through heat transfer board 101 between first pipeline and the second pipeline, heat transfer is very fast, compares with the temperature through detecting the internal unit air outlet of measuring, can shorten check-out time.
With reference to fig. 1, in this embodiment, the first pipeline includes a first pipe segment and a second pipe segment that are arranged in parallel, and a third pipe segment that connects the first pipe segment and the second pipe segment, the heat exchange plate 101 is further provided with a third installation hole 1013 that is parallel to the central line of the first installation hole 1011, the first pipe segment is inserted into the first installation hole 1011, and the second pipe segment is inserted into the third installation hole 1013. So set up, two on heat transfer plate 101 are worn to establish by first pipeline are downthehole, have increased area of contact between first pipeline and the heat transfer plate 101 to improve the heat transfer rate between first pipeline and the heat transfer plate 101, further shorten check-out time. Specifically, the first pipe section, the second pipe section and the third pipe section may be connected by welding, but the first pipe section, the second pipe section and the third pipe section may also be integrally formed.
With continued reference to fig. 1, further, the second pipeline includes a fourth pipe segment and a fifth pipe segment arranged in parallel, and a sixth pipe segment connecting the fourth pipe segment and the fifth pipe segment, a fourth installation hole (not shown) parallel to the central line of the second installation hole 1012 is further provided on the heat exchange plate 101, the fourth pipe segment is inserted into the second installation hole 1012, and the fifth pipe segment is inserted into the fourth installation hole. So set up, the second pipeline is worn to establish two on heat exchange plate 101 downtheholely, has increased the area of contact between second pipeline and the heat exchange plate 101 to improve the heat transfer rate between second pipeline and the heat exchange plate 101, further shorten check-out time. Specifically, the fourth pipe section, the fifth pipe section and the sixth pipe section may be connected by welding, and of course, the fourth pipe section, the fifth pipe section and the sixth pipe section may also be integrally formed.
With continued reference to fig. 1, in the present embodiment, the heat exchanging device 10 further includes a first fixing plate 102 and a second fixing plate 103, the first fixing plate 102 and the second fixing plate 103 are disposed in parallel with the heat exchanging plates 101, and each heat exchanging plate 101 is located between the first fixing plate 102 and the second fixing plate 103; the first fixing plate 102 and the second fixing plate 103 are respectively provided with a first through hole 1021, a second through hole 1022, a third through hole 1023 and a fourth through hole 1024, the first through hole 1021 is over against the first mounting hole 1011, the second through hole 1022 is over against the second mounting hole 1012, the third through hole 1023 is over against the third mounting hole 1013, and the fourth through hole 1024 is over against the fourth mounting hole; the first pipe section further penetrates through the first through hole 1021, the second pipe section further penetrates through the third through hole 1023, the fourth pipe section further penetrates through the second through hole 1022, and the fifth pipe section further penetrates through the fourth through hole 1024. So configured, the first fixing plate 102 and the second fixing plate 103 may be clamped at both sides of each heat exchange plate 101, thereby preventing the heat exchange plates 101 from being separated from the first pipe and the second pipe. In addition, the first fixing plate 102 and the second fixing plate 103 may prevent external objects from contacting the heat exchange plate 101, thereby preventing heat loss.
In this embodiment, the first fixing plate 102 and the second fixing plate 103 may be metal plates; preferably, a heat insulation layer may be disposed on the side surfaces of the first fixing plate 102 and the second fixing plate 103 facing the heat exchange plate 101, and the heat insulation layer may be made of heat insulation materials such as asbestos or fiberglass to prevent heat on the heat exchange plate 101 from being transferred to the external environment through the first fixing plate 102 and the second fixing plate 103 and affecting the detection accuracy.
Further, the heat exchanging device 10 further comprises a housing (not shown) enclosed outside the heat exchanging plate 101, the housing, the first fixing plate 102 and the second fixing plate 103 being enclosed as a receiving cavity for receiving the heat exchanging plate 101. The heat exchange plate 101 is accommodated in the accommodating cavity, so that heat exchange between the heat exchange plate 101 and the external environment can be further prevented, and the detection precision can be further improved.
Similarly, a thermal insulation layer may also be provided on the inner side wall of the housing to prevent heat from being transferred to the housing.
In this embodiment, the circulation device includes a delivery pump and a liquid storage tank; the inlet of the delivery pump is communicated with the liquid storage tank, the outlet of the delivery pump is communicated with the inlet of the second pipeline, and the outlet of the second pipeline is communicated with the liquid storage tank; the liquid storage tank is used for storing a liquid detection medium. So set up, the liquid detection medium that flows through the second pipeline can be stored in the liquid storage tank to carry out cyclic utilization, avoided the waste of liquid detection medium.
It is worth mentioning that a liquid storage tank with a large enough size needs to be arranged to prevent the liquid detection medium flowing out through the second pipeline from affecting the temperature of the liquid detection medium in the liquid storage tank, so as to change the temperature of the liquid detection medium at the inlet of the second pipeline, and thus the detection precision is not sufficient.
In this embodiment, outer quick-witted detection device still includes: the controller is electrically connected with the recognition device and the delivery pump, and the recognition device is used for recognizing the mark on the external machine; the controller controls the flow rate of the delivery pump according to the identification recognized by the recognition device. So set up, through the sign on the outer machine of discernment, the flow of automatic control delivery pump, easy operation and convenient. Specifically, the controller may be a single chip microcomputer, an editable logic controller, or the like.
Specifically, the identifier on the external unit may be a two-dimensional code or a barcode attached to the external unit, and correspondingly, the identification device may be a barcode scanner or a camera electrically connected to the controller, which is capable of identifying the identifier. Because the external machines with different powers have different identifications, the controller controls the flow of the liquid detection medium input into the second pipeline according to the identification identified by the identification device.
Further, when the temperature detecting means includes temperature sensors provided at the inlet and outlet of the second duct, the temperature sensors are also electrically connected to the controller to transmit detected data to the controller.
In this embodiment, outer quick-witted detection device still includes: and the prompting device is electrically connected with the controller, the controller calculates the temperature difference between the inlet and the outlet of the second pipeline, and when the temperature difference reaches a preset value, the controller controls the prompting device to send out prompting information. The outer machine of suggestion staff is qualified through the suggestion device, and it is convenient to detect.
Specifically, the prompting device can comprise a prompting lamp to control the prompting lamp to emit light when the external machine is qualified, and of course, the prompting device can also be a buzzer to control the buzzer to sound when the external machine is qualified.
The detection process of the external unit detection device provided by the embodiment is as follows: the identification on the outer machine is identified through the identification device, then the inlet of the first pipeline is communicated with the first external connecting pipe 70 of the outer machine, the outlet of the first pipeline is communicated with the second external connecting pipe 80 of the outer machine, then the outer machine is started to carry out refrigeration, and at the moment, the outer machine inputs a refrigerant into the first pipeline, so that the temperature of the first pipeline is reduced; meanwhile, the controller controls the delivery pump to drive the liquid detection medium to flow in the second pipeline, and the first pipeline and the second pipeline exchange heat through the heat exchange plate 101, so that the temperature of the liquid detection medium in the second pipeline is reduced; the temperature sensor detects the temperature of the inlet and the outlet of the second pipeline, if the temperature difference value between the inlet and the outlet of the second pipeline reaches a preset value, the external unit is qualified, the controller controls the prompting device to send prompting information, if the temperature difference value between the inlet and the outlet of the second pipeline cannot reach the preset value, the external unit is unqualified, and the controller controls the prompting device not to send the prompting information. Certainly, the outdoor unit may also perform heating, specifically, the identification on the outdoor unit is identified by the identification device, and then the outdoor unit inputs the refrigerant into the first pipeline, so as to raise the temperature of the first pipeline; meanwhile, the controller controls the delivery pump to drive the liquid detection medium to flow in the second pipeline, and the first pipeline and the second pipeline exchange heat through the heat exchange plate 101, so that the temperature of the liquid detection medium in the second pipeline is increased; the temperature sensor detects the temperature of the inlet and the outlet of the second pipeline, if the temperature difference value between the inlet and the outlet of the second pipeline reaches a preset value, the external unit is qualified, the controller controls the prompting device to send prompting information, if the temperature difference value between the inlet and the outlet of the second pipeline cannot reach the preset value, the external unit is unqualified, and the controller controls the prompting device not to send the prompting information.
To sum up, the external unit detection device according to the embodiment of the present invention includes a heat exchange device 10 and a driving device. The heat exchanger 10 includes: the system comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates 101, wherein the first pipeline is communicated with an outdoor unit, and the second pipeline is communicated with a driving device; the heat exchange plates 101 are arranged in parallel and at intervals, each heat exchange plate 101 is provided with a first installation hole 1011 and a second installation hole 1012, a first pipeline is arranged in each first installation hole 1011 in a penetrating manner, and a second pipeline is arranged in each second installation hole 1012 in a penetrating manner; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline. Through above-mentioned setting, carry out heat exchange through heat transfer board 101 between first pipeline and the second pipeline, heat transfer is very fast, compares with the temperature through detecting the detection internal unit air outlet, can shorten check-out time.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. An outer machine detection device, comprising: heat transfer device and drive apparatus, heat transfer device includes: the temperature detection device comprises a temperature detection device, a first pipeline, a second pipeline and a plurality of heat exchange plates, wherein the first pipeline is used for being communicated with an external machine, the second pipeline is communicated with driving equipment, and the driving equipment is used for driving a liquid detection medium to flow in the second pipeline;
the heat exchange plates are arranged in parallel at intervals, each heat exchange plate is provided with a first mounting hole and a second mounting hole, the first pipeline penetrates through the first mounting hole, and the second pipeline penetrates through the second mounting hole; the temperature detection device is connected with the second pipeline to detect the temperature of the inlet and the outlet of the second pipeline.
2. The outdoor unit detecting device according to claim 1, wherein the first pipe includes a first pipe section and a second pipe section arranged in parallel, and a third pipe section connecting the first pipe section and the second pipe section, the heat exchange plate is further provided with a third mounting hole parallel to a center line of the first mounting hole, the first pipe section is inserted into the first mounting hole, and the second pipe section is inserted into the third mounting hole.
3. The outdoor unit detecting device according to claim 2, wherein the second pipe includes a fourth pipe section and a fifth pipe section which are arranged in parallel, and a sixth pipe section which connects the fourth pipe section and the fifth pipe section, the heat exchange plate is further provided with a fourth mounting hole which is parallel to a center line of the second mounting hole, the fourth pipe section is inserted into the second mounting hole, and the fifth pipe section is inserted into the fourth mounting hole.
4. The outdoor unit testing device according to claim 3, wherein the heat exchanging device further comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are disposed in parallel with the heat exchanging plates, and each of the heat exchanging plates is disposed between the first fixing plate and the second fixing plate;
a first through hole, a second through hole, a third through hole and a fourth through hole are formed in the first fixing plate and the second fixing plate respectively, the first through hole is over against the first mounting hole, the second through hole is over against the second mounting hole, the third through hole is over against the third mounting hole, and the fourth through hole is over against the fourth mounting hole; the first pipe section is further arranged in the first through hole in a penetrating mode, the second pipe section is further arranged in the third through hole in a penetrating mode, the fourth pipe section is further arranged in the second through hole in a penetrating mode, and the fifth pipe section is further arranged in the fourth through hole in a penetrating mode.
5. The outdoor unit testing device of claim 4, wherein the heat exchanging device further comprises a housing, the housing is enclosed outside the heat exchanging plate, and the housing, the first fixing plate and the second fixing plate are enclosed to form a containing cavity for containing the heat exchanging plate.
6. The outdoor unit testing apparatus as claimed in claim 1, wherein the driving means includes a feed pump and a reservoir; the inlet of the delivery pump is communicated with the liquid storage tank, the outlet of the delivery pump is communicated with the inlet of the second pipeline, and the outlet of the second pipeline is communicated with the liquid storage tank;
the liquid storage tank is used for storing the liquid detection medium.
7. The outdoor unit testing device as claimed in claim 6, further comprising: the controller is electrically connected with the identification device and the delivery pump, and the identification device is used for identifying a mark on an external machine;
and the controller controls the flow of the delivery pump according to the identification identified by the identification device.
8. The outdoor unit testing device of claim 7, wherein said temperature sensing means comprises temperature sensors disposed at the inlet and outlet of said second duct, said temperature sensors being electrically connected to said controller.
9. The outdoor unit testing device as claimed in claim 8, further comprising: and the prompting device is electrically connected with the controller, the controller calculates the temperature difference between the inlet and the outlet of the second pipeline, and when the temperature difference reaches a preset value, the controller controls the prompting device to send out prompting information.
10. The outdoor unit testing device of claim 1, wherein said heat exchanging plate is a copper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910777073.4A CN110702436A (en) | 2019-08-22 | 2019-08-22 | Outer quick-witted detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910777073.4A CN110702436A (en) | 2019-08-22 | 2019-08-22 | Outer quick-witted detection device |
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| CN110702436A true CN110702436A (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910777073.4A Pending CN110702436A (en) | 2019-08-22 | 2019-08-22 | Outer quick-witted detection device |
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| CN2786597Y (en) * | 2005-04-14 | 2006-06-07 | 珠海格力电器股份有限公司 | Testing machine and testing system of air conditioner outdoor unit |
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