Electronic thermostat detection device and detection method

Abstract

The invention relates to an electronic thermostat detection device and detection method, and belongs to the technical field of thermostats. The thermostat detection device comprises a detection table, a placement seat arranged on the detection table, a liquid injection assembly, a heating assembly and a detection assembly, the placement seat is provided with a placement position for placement of a thermostat, a detection cavity is formed in the placement seat, a communicated receiving opening is formed in the placement position, an opening of the thermostat faces the receiving opening, and the detection assembly is arranged in the detection cavity. The heating assembly comprises a shell and a PCT heating plate, the shell is arranged outside the placement position in a wrapping mode, a detection opening allowing the thermostat to go in and out is formed in the top of the shell, the PCT heating plate heats air in the shell, the liquid injection assembly comprises a liquid injection pipe used for injecting detection liquid into a radiator pipe of the thermostat, and the liquid injection pipe is used for injecting the detection liquid into the radiator pipe of the thermostat. And the detection assembly is arranged in the detection cavity, receives the falling detection liquid and measures the volume of the detection liquid. The method has the advantages that the detection process is convenient, and automatic detection can be achieved to a certain degree.

Description

Technical Field

[0001] The present application relates to the field of thermostats, and in particular to an electronic thermostat detection device and detection method. Background Art

[0002] Thermostat is an automatic temperature control device, usually containing a temperature sensing component, which opens and closes the flow of coolant by expansion or contraction, that is, automatically adjusts the amount of water entering the radiator according to the temperature of the cooling liquid, changes the circulation range of the coolant, and adjusts the heat dissipation capacity of the cooling system. The existing thermostat mainly includes a shell and a thermostat body installed inside the shell. The shell is generally the location of the water pipe and the engine interface. The shell connects the radiator and the water pump. The thermostat body is installed inside the shell and divides the internal space of the shell into upper and lower parts. One part is provided with a radiator pipe connected to the radiator, and the other part is provided with a water pump pipe connected to the water pump. The thermostat body in the shell plays a role in adjusting whether the upper and lower parts of the shell are connected according to the different coolant temperatures.

[0003] After the thermostat is assembled, it is necessary to check whether the opening and closing functions are normal and whether the performance meets the requirements. Among them, whether the degree of opening at the corresponding temperature can smoothly flow the coolant is an important test content. The existing detection method usually inputs liquid of the corresponding temperature into the thermostat, and then connects the corresponding pipes to the water pump pipe and the radiator pipe. Whether the thermostat is qualified is determined by whether the liquid can flow smoothly through the heat dissipation organ. The above detection method is complicated and requires repeated installation and disassembly. A corresponding pump is also required to pump the liquid into the shell outside the thermostat.

[0004] In order to solve the problems in the above detection process, a conventional simple solution is to inject liquid from the heat dissipation organ, and let the liquid flow through the valve in the opposite direction under its own weight to detect the function of the thermostat. No pump is required, and no complicated pipeline structure is required. The above method does not solve the problem of heat transfer from liquid to paraffin, but the load of the valve by the gravity of the liquid itself may affect the judgment of valve opening and closing. Summary of the invention

[0005] On the one hand, in order to reduce the complex pipeline connections in the detection equipment without affecting the detection results, so as to achieve automatic and rapid detection, the present application provides an electronic thermostat detection device, which adopts the following technical solutions:

[0006] An electronic thermostat detection device comprises a detection platform, a placement seat arranged on the detection platform, a liquid injection component, a heating component and a detection component, wherein the placement seat is provided with a placement position for placing the thermostat, a detection cavity is provided in the placement seat and a receiving port connected to the placement position is provided, the opening of the thermostat faces the receiving port, the heating component comprises an outer shell and a PCT heating plate, the outer shell is wrapped and arranged outside the placement position, a detection port for the thermostat to enter and exit is provided on the top of the outer shell, the PCT heating plate heats the air in the outer shell, the liquid injection component comprises an injection pipe for injecting detection liquid into the radiator pipe of the thermostat, and the detection component is arranged in the detection cavity and receives the detection liquid that falls into it and measures the volume of the detection liquid.

[0007] By adopting the above technical solution, a small space is formed by the outer shell, and then the air in the outer shell is heated by the PCT heating plate so that the temperature in the outer shell reaches the detection temperature, and then the thermostat is placed in the outer shell to complete the melting of the paraffin. In this process, the external air temperature plays the role of the detection liquid temperature in the pipe detection, and then the detection liquid is injected into the thermostat, and the volume of the detection liquid is measured to determine whether the thermostat meets the requirements. According to the amount of detection liquid passing through per unit time, the influence of the gravity downward pressure of the valve after the detection liquid is injected is reduced, the detection error is reduced, the detection accuracy is improved, and at the same time, the number of detection pipelines and the installation process are reduced. The detection process is simpler and more convenient, and the space occupied is relatively small, so that multiple placement positions can be set on one detection table, there is no installation process, and it is easier to realize automatic detection.

[0008] Optionally, the detection component includes a detection tube, a detection electrode and a receiver. There are two detection electrodes, which are respectively arranged above and below the detection tube. The two detection electrodes are respectively electrically connected to two detection interfaces of the receiver and detect whether there is a short circuit. The bottom of the detection tube is penetrated and provided with a closing pad, which is pressed against the detection tube. The closing pad is movably installed under the detection tube through a driving member and can move closer to and away from the detection tube.

[0009] By adopting the above technical solution and the electrode detection method, the thermostat only needs to meet the standard if the liquid level meets the standard. The detection process is more direct and the requirements for the intelligence level of the receiver are relatively low. When judging by observation, it may be judged by whether the light is on or not. When judging by the machine, it can be judged by the short-circuit signal. At the same time, the method of sealing the detection tube with a sampling sealing pad also facilitates the discharge of the liquid, thereby realizing rapid assembly line detection.

[0010] Optionally, a collecting partition is provided in the detection cavity, and the collecting partition divides the detection cavity into an upper collecting cavity and a lower detection cavity. The collecting partition includes a collecting member and a partition. The collecting member is funnel-shaped and a partition ring is vertically provided at the bottom of the collecting member. The partition is slidably installed above the collecting member. The upper outer wall of the partition is in an inverted funnel shape and is set as a collecting surface, and the maximum outer diameter of the collecting surface is larger than the outer diameter of the partition ring. A collecting port is opened at the bottom of the collecting member, and an upward driving member is provided at the lower part of the partition. The upward driving member pushes the partition to move upward and abuts against the receiving port to close the receiving port. The partition partially protrudes from the receiving port and lifts up the thermostat.

[0011] By adopting the above technical scheme, the detection liquid flowing out of the thermostat is collected by the collecting member of the collecting partition, and the collecting member sends the collected detection liquid to the designated position of the lower detection chamber through the collecting port at the bottom, which is convenient for the detection tube to receive and improve the detection accuracy. At the same time, the upward movement of the partition can close the receiving port, so that it will not be affected by continuous infiltration, and the detection of the flow rate of the detection liquid per unit time can be achieved. The setting of the partition ring on the collecting member makes it possible for the upward movement function of the partition realized by the upward movement driving member to not affect the collecting member. At the same time, the collecting surface of the partition first guides the detection liquid to the collecting member, and they do not affect each other in the whole process, effectively realizing the organic combination of the sealing function, the collecting function and the thermostat lifting function.

[0012] Optionally, it also includes a manipulator, which is provided with a grabbing structure adapted to the thermostat. The shell is provided with a slideway for sliding installation of the thermostat. A secondary lifting mechanism is also provided in the shell to lift the thermostat. The secondary lifting mechanism and the partition are arranged on both sides.

[0013] By adopting the above technical solution, the loading and unloading of the thermostat is completed by a robot, thereby realizing an automated assembly line detection process with higher automatic integration. The thermostat slides into the interior of the shell, thereby fully entering the environment of the composite detection temperature. At the same time, the robot does not need to be inserted into the shell, and the requirements for the opening size of the shell are reduced, reducing the influence of external air on the temperature. The opening of the slide guides the sliding direction of the thermostat and also makes the position of the thermostat in the shell more accurate. Then, the auxiliary lifting mechanism cooperates with the upward lifting of the partition to complete the lifting of the thermostat. The lifting on both sides makes it less likely for the thermostat to get stuck during the upward movement, and only one set of auxiliary lifting mechanisms is actually added.

[0014] Optionally, the heating component includes a blower, an exhaust pipe and an exhaust pipe, the opening at the top of the shell is provided with an exhaust port, the bottom of the shell is provided with an air intake port, one end of the exhaust pipe is connected to the air outlet of the blower, and the other end is connected to the exhaust port, one end of the exhaust pipe is connected to the air inlet of the blower, and the other end is connected to the air intake port, the exhaust port is in the shape of a long strip and is opened on one side of the top opening of the shell and blows air toward the other side of the top opening of the shell, and the exhaust port is tilted downward to blow toward the junction of the top opening of the shell and the internal space of the shell.

[0015] By adopting the above technical solution, hot air is circulated through the blower. At this time, the PCT heating plate can also be installed in the blower to directly heat the air, reducing the space requirement for installing the PCT heating plate in the shell, sucking air from the bottom of the shell, and blowing air from the top of the shell. Since the hot air rises, the downward suction method is used to hinder the upward movement of the hot air, thereby better limiting the hot air in the shell, better ensuring the test temperature, and reducing energy consumption. When exhausting, the hot air blown out obliquely downward from the exhaust port, on the one hand, flows into the shell, and is not easy to be discharged upward under collision, and on the other hand, forms a wind curtain to prevent the hot air from leaking.

[0016] Optionally, the liquid injection assembly includes a detection liquid box, the liquid injection tube is connected to the detection liquid box, the air extraction tube is partially located in the detection liquid box, and the air extraction tube passes through the detection liquid box close to the opening of the liquid injection tube.

[0017] By adopting the above technical solution, the detection liquid is preheated by the hot air in the exhaust pipe, so that the temperature of the detection liquid is not easy to reversely reduce the temperature of the paraffin and affect the detection result. The exhaust pipe is close to the injection pipe, thereby reducing the temperature diffusion and preheating in real time.

[0018] Optionally, the injection tube is of a telescopic type, and a partition box is provided in the detection liquid tank. The partition box divides the internal space of the detection liquid tank into two parts: a main chamber and a drainage chamber. A one-way valve is provided on the partition box to limit the one-way flow of the main chamber into the drainage chamber. The injection tube is provided with a one-way valve to limit the one-way outflow of the injection tube. The injection tube is connected to the drainage chamber, and the exhaust tube is partially located in the drainage chamber.

[0019] By adopting the above technical solution, the injection tube adopts a telescopic style, so that when the thermostat is placed, the injection tube will not be blocked. After the thermostat is placed, the injection tube can be extended into the thermostat to inject the detection liquid, thereby not affecting the entry and exit of the thermostat, and also requiring less space inside the shell. An independent small space is formed by the partition box and the one-way valve, and the detection liquid is continuously injected during the extension and retraction of the injection tube. By controlling the number of extensions and retractions, the liquid injected each time is accurately controlled. At the same time, after separation, the exhaust pipe passes through the drainage chamber, which is conducive to preheating, reduces the preheating time, and improves the preheating effect.

[0020] Optionally, it also includes a recovery pipe, the lower part of the detection pipe is inserted into the top of the recovery pipe, a side return pipeline is arranged on the side of the recovery pipe, the closing pad is slidably installed in the recovery pipe, the bottom of the recovery pipe is connected to a blowing and suction fan and is divided into a suction branch connected to the side return pipeline, the suction branch is provided with a pressure valve, when the blowing and suction fan blows air, the closing pad closes the bottom of the detection pipe, when the blowing and suction fan inhales air, the detection pipe is connected to the side return pipeline, and the suction branch draws air from the side return pipeline.

[0021] By adopting the above technical scheme, when the blowing and suction fan is blowing air, the positive pressure pushes the closing pad against the opening at the bottom of the detection tube, so that the detection liquid in the detection tube will not be lost and the detection process is completed. When the blowing and suction fan is exhausting air, the negative pressure pulls the closing pad down, and finally opens the side return pipeline to discharge the detection liquid. At the same time, the setting of the suction branch makes the closing pad move down when the blowing and suction fan is exhausting air, and then changes to the side return pipeline to absorb, thereby accelerating the discharge of the detection liquid without affecting the follow-up. Due to the presence of the pressure valve, the follow-up can only be carried out after the closing pad moves down. At the same time, when it changes to blowing again, the closing pad moves up to close the detection tube again, and at the same time, the detection liquid in the suction branch and the side return pipeline is further sent away by blowing. At the same time, the existence of the recovery tube can provide for the installation of the detection tube, and no additional bracket is required for fixing. One structure has multiple functions.

[0022] In the second aspect, with respect to the above detection device, the present application provides an electronic thermostat detection method, which adopts the following technical solution:

[0023] A method for detecting an electronic thermostat comprises the following steps:

[0024] S1. Put the thermostat into the corresponding position of the housing through the manipulator, and then move it down to the designated position after it falls off;

[0025] S2, inject the testing liquid into the thermostat by repeatedly extending and retracting the injection tube, and at the same time, the high-temperature air in the shell heats the thermostat;

[0026] S3. After the corresponding testing time, the separator moves up to close the receiving port and lift up the thermostat. At the same time, the testing liquid in the testing tube is measured to determine whether the thermostat is qualified by whether it meets the standard;

[0027] S4. Take out the thermostat and place it in different positions according to the test results, and complete the recovery of the test at the same time.

[0028] Optionally, before starting the machine and placing the thermostat for testing, preheat the test liquid first, mainly heating the test liquid in the main chamber, and stop heating after heating to a corresponding temperature. During the reciprocating cycle, the temperature is maintained through the exhaust pipe.

[0029] By adopting the above technical solution, the detection liquid is preheated first, so that the temperature of the paraffin will not be suddenly reduced to affect the detection result. In the subsequent detection process, the temperature of the detection liquid is maintained by reciprocating circulation, and the continuity of the detection can be maintained.

[0030] To summarize, a small space is formed by the outer shell, and then the air inside the outer shell is heated by the PCT heating plate so that the temperature inside the outer shell reaches the detection temperature, and then the thermostat is placed in the outer shell to complete the melting of the paraffin. In this process, the external air temperature plays the role of the detection liquid temperature in the pipe detection, and then the detection liquid is injected into the thermostat, and the volume of the detection liquid is measured to determine whether the thermostat meets the requirements. According to the amount of detection liquid passing through per unit time, the influence of the gravity pressure of the valve after the detection liquid is injected is reduced, the detection error is reduced, the detection accuracy is improved, and at the same time, the number of detection pipelines and the installation process are reduced. The detection process is simpler and more convenient, and the space occupied is relatively small, so that multiple placement positions can be set on one detection table. There is no installation process, and it is easier to realize automatic detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural schematic diagram of a detection device in an embodiment of the present application;

[0032] Figure 2 It is a thermostat used for detection in the embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the structure of the placement seat and the housing in the embodiment of the present application;

[0034] Figure 4 is a cross-sectional view of a detection platform in an embodiment of the present application;

[0035] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0036] Figure 6 yes Figure 4 The enlarged view of point B in the middle;

[0037] Figure 7 is a cycle diagram of the heating component in the embodiment of the present application;

[0038] Figure 8 It is another structural schematic diagram of the detection device in the embodiment of the present application.

[0039] Explanation of reference numerals: 1. test table; 2. placement seat; 21. placement position; 22. test cavity; 221. upper collecting cavity; 222. lower test cavity; 23. receiving port; 24. collecting partition; 241. collecting member; 2411. partition ring; 2412. collecting port; 2413. collecting tube; 242. partition; 25. placement gap; 26. upward driving member; 27. auxiliary lifting mechanism; 3. liquid injection assembly; 31. liquid injection tube; 32. test liquid tank; 321. main cavity; 322. drainage cavity; 33. partition box; 34. one-way valve; 35. telescopic Shell; 36, valve; 4, heating component; 41, shell; 411, detection port; 412, exhaust port; 413, air intake port; 42, PCT heating plate; 43, blower; 44, exhaust pipe; 45, exhaust pipe; 5, detection component; 51, detection pipe; 52, recovery pipe; 53, detection electrode; 54, receiver; 55, blowing and suction fan; 56, closing pad; 57, side return pipeline; 58, suction branch; 59, pressure valve; 6, recovery tank; 71, recovery hole; 72, recovery box; 9, thermostat; 91, auxiliary extension pipe; 92, radiator pipe. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-8 This application is described in further detail.

[0041] The embodiment of the present application discloses an electronic thermostat detection device.

[0042] Reference Figure 1 An electronic thermostat detection device includes a detection platform 1, a placement seat 2 arranged on the detection platform 1, a liquid injection component 3, a heating component 4 and a detection component 5, the placement seat 2 is provided with a placement position 21 for placing a thermostat 9, wherein the detection platform 1 can be in a stepped shape, and then a plurality of placement seats 2 are arranged on each step of the detection platform 1 at intervals along the length direction, and each placement seat 2 is provided for a thermostat 9 to be detected, so that multiple thermostats 9 can be detected at the same time.

[0043] by Figure 2 Taking the thermostat 9 shown as an example, the largest opening of the thermostat 9 is connected to the casing, and an auxiliary extension tube 91 extends from one side of the thermostat 9 and protrudes downward. The radiator tube 92 on the top of the thermostat 9 protrudes upward at an angle for connecting to the radiator. During testing, the test liquid is injected from the radiator tube 92 and flows out from the largest opening at the bottom of the thermostat 9. Before testing, the extension tube can be blocked according to the condition of the extension tube.

[0044] Reference Figure 1 and Figure 3 The mounting seat 2 is fixed on the step surface of the detection platform 1. The inner hollow space of the mounting seat 2 is set as a detection cavity 22. The mounting seat 2 is provided with a through receiving port 23 at the placement position 21. When the thermostat 9 is placed, the largest opening below is placed toward the receiving port 23, and the opening of the receiving port 23 covers the opening below the thermostat 9, so that the outflowing detection liquid can be completely received. A placement notch 25 is provided on the side of the mounting seat 2 away from the detection platform 1 for the auxiliary extension tube 91 of the thermostat 9 to be placed, so that the opening of the thermostat 9 is as close to the receiving port 23 as possible.

[0045] Reference Figure 3 , Figure 4 and Figure 5 A collecting partition 24 is provided in the detection cavity 22. The collecting partition 24 divides the detection cavity 22 into an upper collecting cavity 221 and a lower detection cavity 222. Specifically, the collecting partition 24 includes a collecting member 241 and a partition 242. The collecting member 241 is funnel-shaped. The top of the collecting member 241 is fixed integrally with the inner wall of the placement seat 2. The aperture of the upper opening of the collecting member 241 is larger than the aperture of the receiving port 23. A partition ring 2411 is vertically provided at the bottom of the collecting member 241. The lower part of the partition 242 is cylindrical and slides through the collecting ring. An upward driving member 26 is provided at the bottom of the lower detection cavity 222. The upward driving member 26 drives the partition 242 to move up and down. The outer wall of the upper part of the partition 242 is in the shape of an inverted funnel and is set as a collecting surface, and the maximum outer diameter of the collecting surface is larger than the outer diameter of the partition ring 2411 and the aperture of the receiving port 23. The upper part of the partition 242 can pass through the receiving port 23 to close the receiving port 23. A rubber layer is provided on the outside of the partition 242. At the same time, after the partition 242 protrudes from the receiving port 23, it can drive the thermostat 9 to move up together. Correspondingly, a secondary lifting mechanism 27 is provided at the placement notch 25 of the placement seat to lift the thermostat 9. The secondary lifting mechanism 27 and the partition 242 are arranged on both sides to better lift the thermostat 9. The upward driving member 26 and the secondary lifting mechanism 27 can be a cylinder.

[0046] A collecting port 2412 is provided at the bottom of the collecting piece 241. The collecting port 2412 is provided on a side of the collecting piece 241 away from the placement notch 25, and a separating ring 2411 at the bottom of the collecting piece 241 is eccentrically arranged so that the collecting port 2412 is at the lowest position to better collect the test liquid. The collecting port 2412 is provided with a collecting tube 2413 extending downward in the lower test chamber 222.

[0047] The detection component 5 includes a detection tube 51, a recovery tube 52, a detection electrode 53, a receiver 54 and a blowing and suction fan 55. One end of the recovery tube 52 is located in the lower detection cavity 222, and the other end is located inside the detection platform 1 below the placement seat 2. The blowing and suction fan 55 is installed inside the detection platform 1. The end of the recovery tube 52 located in the detection platform 1 is connected to the blowing and suction fan 55. The aperture of the end of the recovery tube 52 located in the lower detection cavity 222 is larger than the aperture of the end of the recovery tube 52 located in the detection platform 1, and a step surface is formed inside the recovery tube 52. The detection tube 51 is inserted into the end of the recovery tube 52 located in the lower detection cavity 222, and a closing pad 56 is slidably installed in the recovery tube 52. The closing pad 56 slides between the step surfaces in the detection tube 51 and the recovery tube 52. There are two detection electrodes 53, and the two detection electrodes 53 are respectively arranged above and below the detection tube 51. The two detection electrodes 53 are respectively electrically connected to the two detection interfaces of the receiver 54 and detect whether they are short-circuited.

[0048] A side return pipe 57 is separated from the side wall of the recovery pipe 52 near the detection pipe 51, and when the closing pad 56 abuts against the detection pipe 51, the side return pipe 57 is also closed by the closing pad 56. When the blowing and suction fan 55 draws air, the closing pad 56 moves down, and the detection pipe 51 is connected to the side return pipe 57. A suction branch 58 is provided on the side wall of one end of the recovery pipe 52 connected to the blowing and suction fan 55. The suction branch 58 is provided with a pressure valve 59, and the end of the suction branch 58 away from the recovery pipe 52 is connected to the side return pipe 57, and the suction branch 58 is connected to the upper side wall of the side return pipe 57, so that the detection liquid is not easy to flow into the suction branch 58 when it is recovered. The side return pipe 57 is inclined, and the end of the side return pipe 57 away from the recovery pipe 52 is connected to a recovery tank 6.

[0049] In this embodiment, the pressure valve 59 needs to be evacuated and blown to a certain pressure before it can be opened, thereby ensuring that the sealing of the detection tube 51 by the sealing pad 56 meets the requirements, wherein when the sealing pad 56 seals the detection tube 51, the recovery tube 52 can also be connected to the side return pipeline 57. In this embodiment, the sealing pad 56 preferably seals the detection tube 51 and the side return pipeline 57 at the same time, so that the sealing effect of the sealing pad 56 on the detection tube 51 is more stable. When the sealing pad 56 is used without sealing the side return pipeline 57, the detection liquid in the side return pipeline 57 can be better blown into the recovery tank 6 when the suction fan 55 blows air. When the sealing pad 56 seals the detection tube 51 and the side return pipeline 57 at the same time, air is blown into the side return pipeline 57 through the suction branch 58.

[0050] Reference Figure 1 , Figure 6 and Figure 7The heating assembly 4 includes a shell 41, a PCT heating plate 42, a blower 43, an exhaust pipe 44 and an exhaust pipe 45. The shell 41 is fixed on the mounting seat 2, and the top opening of the shell 41 forms a detection port 411 for the thermostat 9 to enter and exit. A space for placing the thermostat 9 is formed between the shell 41 and the mounting seat 2. The PCT heating plate 42 heats the air in the shell 41. Specifically, the PCT heating plate 42 can be directly installed on the mounting seat 2, but in order to save space in the shell 41, the present embodiment preferably installs the PCT heating plate 42 in the blower 43, so as to control the air passing through the blower 43. The air is heated, an exhaust port 412 is provided at the opening at the top of the shell 41, an air intake port 413 is provided at the bottom of the shell 41, one end of the exhaust pipe 44 is connected to the air outlet of the blower 43, and the other end is connected to the exhaust port 412, one end of the exhaust pipe 45 is connected to the air inlet of the blower 43, and the other end is connected to the air intake port 413, the exhaust port 412 is long and is opened on one side of the top opening of the shell 41 and blows air toward the other side of the top opening of the shell 41, and the exhaust port 412 is tilted downward to blow toward the junction of the top opening of the shell 41 and the internal space of the shell 41, thereby forming a wind curtain to prevent hot air from leaking.

[0051] In order to automatically take the thermostat 9 in and out of the shell 41, a robot is provided. The robot is provided with a grasping structure adapted to the thermostat 9. A partition wall is integrally provided at the lower part of the shell 41 to separate the placement position 21 and the placement notch 25. The partition wall is provided with a slide for sliding installation of the thermostat 9 and for sliding installation of the auxiliary extension tube 91 of the thermostat 9.

[0052] At the same time, in order to recover the detection liquid on the surface of the placement position 21, the surface of the placement position 21 is inclined, so that the side of the placement position 21 close to the partition wall is lower and is provided with a recovery hole 71, and the corresponding receiving port 23 is also inclined. The thermostat 9 is mainly stabilized by the partition wall and the auxiliary lifting mechanism 27. The surface of the placement position 21 is in contact with and supported by the side of the thermostat 9 away from the auxiliary extension tube 91. The recovery hole 71 is connected to the recovery box 72 through a pipeline. The recovery box 72 is provided with an electric heating component 4. The heated detection liquid is sent back to the detection liquid tank 32 through a pump. While replenishing the detection liquid, the heat of the detection liquid is also replenished.

[0053] Reference Figure 4 and Figure 6The injection assembly 3 includes an injection pipe 31 for injecting detection liquid into the radiator tube 92 of the thermostat 9 and a detection liquid tank 32 for storing the detection liquid. An electric heating element is arranged at the bottom of the detection liquid tank 32. The injection pipe 31 is connected to the detection liquid tank 32. The injection pipe 31 is telescopic. Specifically, a partition box 33 is arranged in the detection liquid tank 32. The partition box 33 divides the internal space of the detection liquid tank 32 into two parts: a main chamber 321 and a drainage chamber 322. The drainage chamber 322 is located inside the partition box 33. The lower side wall of the partition box 33 is opened and provided with a one-way valve 34 to limit the one-way flow of the detection liquid in the main chamber 321 to the drainage chamber 322. The nozzle of the injection pipe 31 is provided with a one-way valve 34 to limit the one-way outflow of the injection pipe 31. The injection pipe 31 is connected to the drainage chamber 322. The detection liquid is discharged from the detection liquid tank 32 by the retractable mechanism. The retractable mechanism includes a retractable shell 35 connected to the discharge chamber 322. A valve 36 and a cylinder for driving the valve 36 to move up and down are slidably installed in the retractable shell 35. The volume of the entire discharge chamber 322 is changed by the movement of the valve 36. When the valve 36 moves up, the injection tube 31 contracts first, and then the detection liquid in the main chamber 321 flows into the discharge chamber 322. When the valve 36 moves down, the injection tube 31 moves outward first and extends into the radiator tube 92 of the thermostat 9, and then the detection liquid is discharged into the thermostat 9 through the discharge tube.

[0054] Among them, the exhaust pipe 45 passes through the detection liquid box 32 and is located above the detection liquid level in the main cavity 321. The exhaust pipe 45 is partially located in the drainage cavity 322, thereby mainly heating the detection liquid in the drainage cavity 322. Accordingly, the liquid level in the drainage cavity 322 is higher than the liquid level in the main cavity 321, but the separation box 33 is partially located below the liquid level in the main cavity 321, thereby ensuring the extraction of the detection liquid.

[0055] The number of the above-mentioned detection liquid tanks 32 can be consistent with the number of steps of the detection platform 1, and each step shares a detection liquid tank 32, or each placement seat 2 is equipped with a detection liquid tank 32. At the same time, the detection liquid tank 32 has a hole connected to the atmosphere, and the recovery tank 6 is connected to the top of the detection liquid tank 32 through a tube. When the blowing and suction fan 55 blows air, the detection liquid in the recovery tank 6 can also be sent to the detection liquid tank 32. A heating element can also be provided in the recovery tank 6 to replenish the temperature while recovering the detection liquid. However, due to the change of the liquid level, the recovery tank 6 in this embodiment is not provided with a heating element, and only the heat loss is replenished by the detection liquid in the recovery box 72.

[0056] At the same time, the heating component 4 can be equipped with one for each placement seat 2 like the detection liquid tank 32, or there can be one heating component 4 but the exhaust pipe 45 is divided into multiple branches, each branch passes through a partition box 33, or the exhaust pipe 45 passes through each partition box 33 in turn. The present embodiment preferably has a one-to-one pairing of multiple heating components 4 and multiple detection liquid tanks 32, and each placement seat 2 is equipped with a detection liquid tank 32, a heating component 4, a recovery tank 6 and a recovery box 72.

[0057] Reference Figure 8 When the thermostat 9 is an ordinary thermostat 9, the situation of each mounting seat 2 is the same, and each mounting seat 2 performs a test on a thermostat 9. When the thermostat 9 is an electronic thermostat 9, it is also necessary to perform a test for power-on heating. At this time, one of the two adjacent mounting seats 2 performs a conventional liquid flow test, and the other no longer has a shell 41, a liquid injection component 3, a heating component 4 and a detection component 5, but an electrically connected interface is set to connect with the thermostat 9 for power-on detection. In this embodiment, for the case of the electronic thermostat 9, the detection platform 1 has two upper and lower steps. Two mounting seats 2 are set on the left and right sides of each step of the detection platform 1, and a position is left empty in the middle. The mounting seats 2 close to each other on the left and right sides perform power-on detection.

[0058] The embodiment of the present application also discloses an electronic thermostat detection method.

[0059] A method for detecting an electronic thermostat comprises the following steps:

[0060] First, turn on the machine. Before placing the thermostat 9 for detection, preheat the detection liquid. The detection liquid is preheated by the electric heating element inside the detection liquid tank 32. After the machine is turned on and preheated for a corresponding time, it is heated to a corresponding temperature and the heating is stopped. During the subsequent reciprocating cycle, the overall temperature is maintained by the exhaust pipe 45 and the heating of the recovered detection liquid.

[0061] S1. Put the thermostat 9 into the corresponding position of the housing 41 by a manipulator, and then move the thermostat 9 down to the designated position after it falls off;

[0062] S2, injecting the testing liquid into the thermostat 9 by repeatedly extending and retracting the injection pipe 31, while the high-temperature air in the housing 41 heats the thermostat 9;

[0063] S3. After the corresponding detection time, the partition 242 moves up to close the receiving port 23 and lift up the thermostat 9. The detection liquid in the thermostat 9 falls into the collecting member 241. The collecting member 241 sends the detection liquid into the detection tube 51. Then, the detection liquid in the detection tube 51 is measured. Whether it meets the standard is determined by whether it is short-circuited. If it is short-circuited, it is determined that the thermostat 9 is qualified.

[0064] S4, taking out the thermostat 9 and placing it in different positions according to the test results, and completing the recovery of the test at the same time, and the thermostat 9 that fails the test is manually tested again.

[0065] In the above S4, if it is an electronic thermostat 9, two manipulators are used to alternately place the thermostat 9 on the outer side of the upper and lower step surfaces for testing. After the testing is completed, the manipulators alternately send it to the adjacent mounting seat 2 for electronic testing, and then remove it after manual inspection and observation. The upper and lower steps are tested alternately to improve the detection efficiency.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electronic thermostat detection device, characterized in that: The invention comprises a testing platform (1), a placement seat (2) arranged on the testing platform (1), a liquid injection component (3), a heating component (4) and a testing component (5); the placement seat (2) is provided with a placement position (21) for placing a thermostat (9); a testing cavity (22) is provided in the placement seat (2) and a receiving port (23) connected to the placement position (21) is provided; the opening of the thermostat (9) faces the receiving port (23); the heating component (4) comprises a housing (41) and a PCT heating plate ( 42), the shell (41) is wrapped and arranged outside the placement position (21), the top of the shell (41) is provided with a detection port (411) for the thermostat (9) to enter and exit, the PCT heating plate (42) heats the air in the shell (41), the injection component (3) includes an injection pipe (31) for injecting the detection liquid into the radiator pipe (92) of the thermostat (9), and the detection component (5) is arranged in the detection cavity (22) and receives the detection liquid that falls into it and measures the volume of the detection liquid.

2. An electronic thermostat detection device according to claim 1, characterized in that: The detection assembly (5) comprises a detection tube (51), a detection electrode (53) and a receiver (54). There are two detection electrodes (53), which are arranged at the upper and lower parts of the detection tube (51). The two detection electrodes (53) are respectively electrically connected to two detection interfaces of the receiver (54) and detect whether they are short-circuited. The bottom of the detection tube (51) is penetrated and provided with a sealing pad (56). The sealing pad (56) is pressed against the detection tube (51). The sealing pad (56) is movably installed under the detection tube (51) through a driving member and can move towards and away from the detection tube (51).

3. The electronic thermostat detection device according to claim 1, characterized in that: A collecting partition (24) is arranged in the detection cavity (22), and the collecting partition (24) divides the detection cavity (22) into two parts: an upper collecting cavity (221) and a lower detection cavity (222). The collecting partition (24) comprises a collecting part (241) and a partition (242). The collecting part (241) is funnel-shaped and a partition ring (2411) is vertically arranged at the bottom of the collecting part (241). The partition (242) is slidably installed above the collecting part (241). The upper outer wall of the partition (242) is in the shape of an inverted funnel and is set as a collecting surface, and the maximum outer diameter of the collecting surface is greater than the outer diameter of the partition ring (2411). A collecting port (2412) is provided at the bottom of the collecting member (241). An upward driving member (26) is provided at the lower part of the partition (242). The upward driving member (26) pushes the partition (242) to move upward and abut against and close the receiving port (23). The partition (242) partially protrudes from the receiving port (23) and lifts up the thermostat (9).

4. The electronic thermostat detection device according to claim 3, characterized in that: It also includes a manipulator, on which is disposed a gripping structure adapted to the thermostat (9), the housing (41) is provided with a slideway for slidingly installing the thermostat (9), and the housing (41) is also provided with a secondary lifting mechanism (27) for lifting the thermostat (9), the secondary lifting mechanism (27) and the partition (242) being disposed on both sides.

5. The electronic thermostat detection device according to claim 1, characterized in that: The heating component (4) comprises a blower (43), an exhaust pipe (44) and an air suction pipe (45); an opening at the top of the shell (41) is provided with an exhaust port (412); a bottom of the shell (41) is provided with an air suction port (413); one end of the exhaust pipe (44) is connected to the air outlet of the blower (43), and the other end is connected to the exhaust port (412); one end of the air suction pipe (45) is connected to the air inlet of the blower (43), and the other end is connected to the air suction port (413); the exhaust port (412) is in the shape of a long strip and is opened on one side of the top opening of the shell (41) and blows air toward the other side of the top opening of the shell (41); and the exhaust port (412) is tilted downward and blows toward the junction of the top opening of the shell (41) and the internal space of the shell (41).

6. An electronic thermostat detection device according to claim 5, characterized in that: The liquid injection assembly (3) comprises a detection liquid box (32), the liquid injection pipe (31) is connected to the detection liquid box (32), the air extraction pipe (45) is partially located in the detection liquid box (32), and the air extraction pipe (45) passes through the detection liquid box (32) and is close to the opening of the liquid injection pipe (31).

7. An electronic thermostat detection device according to claim 6, characterized in that: The injection pipe (31) is of a telescopic type. A partition box (33) is provided in the detection liquid box (32). The partition box (33) divides the internal space of the detection liquid box (32) into two parts: a main chamber (321) and a liquid discharge chamber (322). A one-way valve (34) is provided on the partition box (33) to limit the one-way flow of the main chamber (321) into the liquid discharge chamber (322). The injection pipe (31) is provided with a one-way valve (34) to limit the one-way outflow of the injection pipe (31). The injection pipe (31) is connected to the liquid discharge chamber (322). The exhaust pipe (45) is partially located in the liquid discharge chamber (322).

8. The electronic thermostat detection device according to claim 2, characterized in that: It also includes a recovery pipe (52), the lower part of the detection pipe (51) is inserted into the top of the recovery pipe (52), the side of the recovery pipe (52) is provided with a side return pipe (57), the sealing pad (56) is slidably installed in the recovery pipe (52), the bottom of the recovery pipe (52) is connected to a blowing and suction fan (55) and is divided into a suction branch (58) connected to the side return pipe (57), the suction branch (58) is provided with a pressure valve (59), when the blowing and suction fan (55) blows air, the sealing pad (56) closes the bottom of the detection pipe (51), when the blowing and suction fan (55) inhales air, the detection pipe (51) is connected to the side return pipe (57), and the suction branch (58) draws air from the side return pipe (57).

9. An electronic thermostat detection method, characterized in that: The steps include: S1. The thermostat (9) is placed into the corresponding position of the housing (41) by a manipulator, and the thermostat (9) is removed and moved down to the designated position; S2, injecting the testing liquid into the thermostat (9) by repeatedly extending and retracting the liquid injection pipe (31), while the high-temperature air in the housing (41) heats the thermostat (9); S3. After the corresponding testing time, the partition (242) moves upward to close the receiving port (23) and lift up the thermostat (9), and at the same time, the testing liquid in the testing tube (51) is measured to determine whether the thermostat (9) is qualified by whether it meets the standard; S4, taking out the thermostat (9) and placing it in different positions according to the detection results, and completing the detection recovery at the same time.

10. The electronic thermostat detection method according to claim 9, characterized in that: Before starting the machine and placing the thermostat (9) for testing, the testing liquid is preheated first, mainly heating the testing liquid in the main chamber (321). After heating to a corresponding temperature, the heating is stopped, and the temperature is maintained through the exhaust pipe (45) during the reciprocating cycle.

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