Two-device fin quantity detection device and detection method

Abstract

The present invention discloses a device and method for detecting the number of fins on two devices. The device includes a housing, one end of which is provided with a common pin and at least one test pin at intervals. A detection circuit is provided within the housing, the common pin and each test pin being electrically connected to the detection circuit. The common pin and the test pin are overlapped on the fins to conduct the detection circuit. The device is dragged from one end of the two devices to the other end, and the number of fins is obtained by counting the number of conductions in the detection circuit. The detection device of the present invention has high detection efficiency and requires little labor. The use of a portable fin number detection device is simple and convenient, greatly shortening the time required to count fins. The detection device greatly reduces the environmental requirements for fin number detection. The use of a portable fin number detection device does not require a high environmental requirement, and measurements can be performed anytime and anywhere.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a device and method for detecting the number of fins of two devices. Background Art

[0002] To control product quality and production costs, the refrigeration industry has strict requirements for the number of fins on evaporators and condensers (collectively, the two units). Regular inspection and recording of the number of fins on both units is essential during production across various industries. Manual counting is time-consuming and inaccurate due to the fin margins and thickness of the two units, necessitating multiple counts. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for detecting the number of fins of two devices, so as to solve the technical problem that the fins of the two devices are densely arranged, resulting in a long time and low accuracy in manual counting.

[0004] To achieve the above objectives, the specific technical solutions of the device and method for detecting the number of fins of two devices of the present invention are as follows:

[0005] A device for detecting the number of fins of two devices includes a shell, a common pin and at least one test pin are arranged at intervals at one end of the shell, a detection circuit is provided in the shell, the common pin and each test pin are electrically connected to the detection circuit respectively, when the common pin and the test pin slide past, they overlap with each fin in turn, making the detection circuit conductive, the detection device is dragged from one end of the two devices to the other end, and the number of fins is determined by the number of times the detection circuit is conductive.

[0006] Furthermore, the detection circuit includes a control unit, the common pin and the test pin are respectively connected to the input end of the control unit through wires, and the control unit is provided with a counter for recording the number of times the detection circuit is turned on.

[0007] Furthermore, a display is provided on the shell away from the pin direction, an indicator light is provided on the shell on one side of the display, the indicator light is set close to the pin direction, and an alarm is also provided on the shell between the display and the indicator light. The display, indicator light and alarm are respectively connected to the output end of the control unit.

[0008] Furthermore, when the number of the test pin is one, the number of conduction times of the detection circuit is the number of the fins.

[0009] Furthermore, the number of test pins includes at least two, each test pin is arranged on both sides of the common pin, each test pin is connected to the detection circuit through a wire, each detection circuit is arranged in parallel, and a counter records the number of times each detection circuit is turned on.

[0010] Furthermore, the detection device also includes a comparison unit, which is electrically connected to the control unit and is used to obtain the maximum and minimum values of each conduction number and output the difference between the maximum and minimum values to the control unit. A threshold is set in the control unit. When the difference is less than the threshold, the number of fins is the average value of each conduction number; when the difference is greater than or equal to the threshold, the test data is abnormal, the detection result is invalid, and re-detection is performed.

[0011] Furthermore, the common pin and the test pin have the same structure, each pin is a metal sheet, one end of the pin passes through the shell and is connected to the input end of the control unit, the other end of the pin is a free end, a bending portion is provided in the middle of the pin, and a flange is provided at the free end of the pin.

[0012] Furthermore, the testing device also includes a battery that provides electrical energy to the control unit. A groove for accommodating the battery is provided in the shell away from the pin direction. The groove runs through the side wall of the shell. The opening of the groove is covered with a battery cover, and a hook is provided on the battery cover.

[0013] A method for detecting the number of fins of two devices mainly comprises the following steps:

[0014] When the common pin and the test pin slide through, they overlap with each fin, making the detection circuit conductive. The detection device is dragged from one end of the two devices to the other end, recording the number of times the detection circuit is conductive, and the number of fins is determined based on the number of times the circuit is conductive.

[0015] Furthermore, when the number of the test pin is one, the number of conduction times of the detection circuit is the number of the fins.

[0016] Furthermore, when the number of test pins is at least two, the number of conduction times of the detection circuit corresponding to each test pin is recorded separately. When the difference between the maximum and minimum values of each conduction number is less than a threshold, the number of fins is the average value of each conduction number; when the difference between the maximum and minimum values of each conduction number is greater than or equal to the threshold, the test data is abnormal and the detection result is invalid.

[0017] Furthermore, a zeroing step is included, in which the common pin and the test pin are in contact with the same fin at the same time and maintained for 3-5 seconds.

[0018] The device and method for detecting the number of fins of two devices of the present invention have the following advantages:

[0019] First, the detection device of the present invention improves detection efficiency and reduces labor input. The portable fin number detection device is simple and convenient, which greatly shortens the fin counting time.

[0020] Secondly, the detection device greatly reduces the environmental requirements for fin number detection. Previously, the test required sufficient light and two devices to be placed on the workbench. The portable fin number detection device has low environmental requirements and can be used for measurement anytime and anywhere.

[0021] Thirdly, when measuring, the detection device tests multiple test heads together. After the test is completed, the test data of multiple test heads are compared. If there are large differences, the measurement failure will be displayed. If the differences are within the required range, the most accurate measurement data will be given through logical operations, which greatly improves the accuracy.

[0022] Finally, the detection device can be used to perform 100% measurement online by increasing the measurement ratio or after modification due to its short measurement time and convenient measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the device for detecting the number of fins of two devices according to the present invention;

[0024] Figure 2 This is a rear view of the device for detecting the number of fins of two devices according to the present invention;

[0025] Figure 3 A top view of the device for detecting the number of fins of two devices according to the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the detection device of the present invention when testing the number of fins;

[0027] Figure 5 Schematic diagram of the structure of the detection circuit used in the detection device of the present invention;

[0028] Figure 6 This is a flow chart of a first embodiment of a method for detecting the number of fins of two devices according to the present invention;

[0029] Figure 7 Flowchart of the second embodiment of the method for detecting the number of fins of two vessels according to the present invention.

[0030] Explanation of the numbers in the figure: 1. Shell; 2. Common pin; 3. Test pin; 31. Bending part; 32. Flanged edge; 4. Battery cover; 41. Hook; 5. Indicator light; 6. Alarm; 7. Switch button; 8. Display; 9. Fin. DETAILED DESCRIPTION

[0031] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a two-vessel fin quantity detection device and detection method of the present invention in conjunction with the accompanying drawings.

[0032] like Figure 1-Figure 4As shown, the present invention provides a device for detecting the number of fins of two devices, wherein the two devices include a plurality of fins 9 closely arranged side by side, and the fins 9 are made of conductive metal materials such as aluminum. The detection device includes a shell 1, which is a slender rectangular structure. A common pin 2 and at least one test pin 3 are spaced apart at one end of the shell 1. A detection circuit is provided in the shell 1, and the common pin 2 and each test pin 3 are electrically connected to the detection circuit respectively. The common pin 2 and the test pin 3 are overlapped on the fin 9 to conduct the detection circuit to form a loop. The detection device is dragged from one end of the two devices to the other end, and the common pin 2 and the test pin 3 contact each fin in turn to conduct the detection circuit. The number of fins 9 is determined by the number of conductions of the detection circuit.

[0033] like Figure 5 As shown, the detection circuit includes a control unit, the common pin 2 and the test pin 3 are respectively connected to the input end of the control unit through wires, and the control unit is provided with a counter for recording the number of times the detection circuit is turned on.

[0034] In order to facilitate the user to quickly read the number of fins 9, a display 8 is provided on the casing away from the pin direction, which is used to display the number of fins 9 in real time. At the same time, an indicator light 5 is provided on the shell 1 on one side of the display 8. The indicator light 5 is set close to the pin direction to indicate whether the display process is normal. A switch button 7 is provided on the casing between the display 8 and the indicator light 5, and an alarm 6 is also provided on the casing between the switch button 7 and the indicator light 5. The display 8, indicator light 5 and alarm 6 are respectively connected to the output end of the control unit, and the switch button 7 is connected to the wire connected to the common pin 2.

[0035] When the number of the test pin 3 is one, the number of conduction times of the detection circuit is the number of the fins 9 .

[0036] In order to ensure the accuracy of data testing, the number of test pins 3 includes at least two, and each test pin 3 is located on both sides of the common pin 2. Each test pin 3 is connected to the detection circuit through a wire, and the detection circuits are arranged in parallel. The counter records the number of times each detection circuit is turned on.

[0037] The detection device also includes a comparison unit, which is electrically connected to the control unit and is used to obtain the maximum and minimum values of each conduction number and output the difference between the maximum and minimum values to the control unit. A threshold is set in the control unit. When the difference is less than the threshold, the number of fins 9 is the average value of each conduction number; when the difference is greater than or equal to the threshold, the test data is abnormal, the test result is invalid, and re-testing is performed.

[0038] When the test data is abnormal, the alarm 6 turns on for 5-10 seconds, the indicator light 5 goes out, and the display screen does not show any data.

[0039] like Figure 3As shown, the common pin 2 and the test pin 3 have the same structure. Each pin is a metal sheet. One end of the pin passes through the shell and is connected to the input end of the control unit. The other end of the pin is a free end. A bending portion 31 is provided in the middle of the pin, and a flange 32 is provided at the free end of the pin, which greatly improves the life of the pin.

[0040] The test device also includes a battery that provides power to the control unit. A groove for accommodating the battery is provided in the shell away from the pin direction. The groove runs through the side wall of the shell. The opening of the groove is covered with a battery cover 4. A hook 41 is provided on the battery cover 4. After the test is completed, the user can hang the test device on items such as pockets and notebooks.

[0041] like Figure 5 As shown, the present invention also provides a method for detecting the number of fins of two devices, which mainly includes the following steps:

[0042] The common pin 2 and at least one test pin 3 are connected to the fins 9 at one end of the two devices. The detection device is dragged to the other end of the two devices, the number of conduction times of the detection circuit is recorded, and the number of fins 9 is determined according to the conduction times.

[0043] When the number of the test pin 3 is one, the number of conduction times of the detection circuit is the number of the fins 9 .

[0044] When multiple test pins 3 are arranged symmetrically on both sides of the common pin 2, the number of conduction times of the detection circuit corresponding to each test pin 3 is recorded respectively. When the difference between the maximum and minimum values of each conduction number is less than the threshold value, the number of fins 9 is the average value of each conduction number; when the difference between the maximum and minimum values of each conduction number is greater than or equal to the threshold value, the test data is abnormal and the detection result is invalid.

[0045] The average value of each conduction number is rounded and displayed on the display 8 to facilitate the user to quickly read the number of fins 9.

[0046] When the test data is abnormal, the alarm 6 turns on for 5-10 seconds, the indicator light 5 goes out, the display screen does not show any data, and the test is repeated. The threshold value can be set to an integer value such as 1, 2, or 3.

[0047] In order to clear the last data and restart the counting, a clearing step is also included. The common pin 2 and the test pin 3 are in contact with the same fin 9 at the same time and maintained for 3-5 seconds. After that, the alarm 6 is turned on for 0.5-1 second. At the same time, the indicator light 5 changes from constant to flashing once to clear the timer in the control unit.

[0048] During measurement, the angles between the common pin 2 and the test pin 3 and the fin 9 are between 40-60°, preferably, the angles are between 45-50°.

[0049] The detection device improves detection efficiency and reduces labor input. The portable fin 9 number detection device is simple and convenient, which greatly shortens the time for counting fins 9. The detection device greatly reduces the environmental requirements for fin 9 number detection. Previously, during testing, it was necessary to place two devices on a workbench in sufficient light for measurement. The portable fin 9 number detection device has low environmental requirements and can be used for measurement anytime and anywhere. During measurement, multiple test heads are tested together. After the test is completed, the test data of multiple test heads are compared. If there are many differences, the measurement failure will be displayed. If the difference is within the required range, the most accurate measurement data will be given through logical operation, and the accuracy is greatly improved. Due to the short measurement time and convenient measurement, 100% measurement can be performed online after increasing the measurement ratio or after modification.

[0050] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A device for detecting the number of fins of two devices, characterized in that: The invention comprises a shell (1), wherein a common pin (2) and at least two test pins (3) are arranged at intervals at one end of the shell (1); a detection circuit is arranged in the shell (1); the common pin (2) and each test pin (3) are electrically connected to the detection circuit respectively; when the common pin (2) and the test pin (3) slide through, they are sequentially overlapped with each fin (9), so that the detection circuit is turned on; the detection device is dragged from one end of the two devices to the other end, and the number of fins (9) is determined by the number of conduction times of the detection circuit; the detection device also comprises a comparison unit, which is electrically connected to a control unit and is used to obtain the maximum value and the minimum value of each conduction number and output the difference between the maximum value and the minimum value to the control unit; a threshold value is set in the control unit; when the difference is less than the threshold value, the number of fins (9) is the average value of each conduction number; when the difference is greater than or equal to the threshold value, the test data is abnormal, the detection result is invalid, and re-detection is performed.

2. The device for detecting the number of fins of two vessels according to claim 1, characterized in that: The detection circuit comprises a control unit, wherein a common pin (2) and a test pin (3) are respectively connected to an input end of the control unit through a wire, and a counter is provided in the control unit for recording the number of times the detection circuit is turned on.

3. The device for detecting the number of fins of two vessels according to claim 2, characterized in that: A display (8) is provided on the housing away from the pin direction, an indicator light (5) is provided on the housing (1) on one side of the display (8), the indicator light (5) is arranged close to the pin direction, and an alarm (6) is also provided on the housing between the display (8) and the indicator light (5), and the display (8), the indicator light (5), and the alarm (6) are respectively connected to the output end of the control unit.

4. The device for detecting the number of fins of two vessels according to claim 1, characterized in that: Each test pin (3) is arranged on both sides of the common pin (2), each test pin (3) is connected to the detection circuit through a wire, each detection circuit is arranged in parallel, and a counter respectively records the number of times each detection circuit is turned on.

5. The device for detecting the number of fins of two vessels according to claim 1, characterized in that: The common pin (2) and the test pin (3) have the same structure. Each pin is a metal sheet. One end of the pin passes through the housing and is connected to the input end of the control unit. The other end of the pin is a free end. A bending portion (31) is provided in the middle of the pin, and a flange (32) is provided at the free end of the pin.

6. The device for detecting the number of fins of two vessels according to claim 2, characterized in that: The test device also includes a battery for providing electric energy to the control unit. A groove for accommodating the battery is provided in the housing away from the pin direction. The groove passes through the side wall of the housing. The opening of the groove is covered with a battery cover (4). The battery cover (4) is provided with a hook (41).

7. A method for detecting the number of fins of two devices, characterized in that: The device for detecting the number of fins of two devices according to any one of claims 1 to 6 mainly comprises the following steps: When the common pin (2) and the test pin (3) slide through, they overlap with each fin (9), so that the detection circuit is turned on. The detection device is dragged from one end of the two devices to the other end, and the number of conduction times of the detection circuit is recorded. The number of fins (9) is determined according to the number of conduction times. When the number of test pins (3) is at least two, the number of conduction times of the detection circuit corresponding to each test pin (3) is recorded respectively. When the difference between the maximum value and the minimum value of each conduction time is less than a threshold value, the number of fins (9) is the average value of each conduction time. When the difference between the maximum value and the minimum value of each conduction time is greater than or equal to the threshold value, the test data is abnormal and the detection result is invalid.

8. The detection method according to claim 7, characterized in that When the number of the test pin (3) is one, the number of conduction times of the detection circuit is the number of the fins (9).

9. The detection method according to claim 7, characterized in that The method also includes a zeroing step, wherein the common pin (2) and the test pin (3) are simultaneously in contact with the same fin (9) and maintained for 3-5 seconds.

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