A testing device for a fan heat dissipation assembly

Abstract

The application provides a testing device for a fan heat dissipation assembly, and relates to the technical field of fan testing, which comprises a bottom support, a transmission frame fixedly arranged at the top rear side of the bottom support, a support shaft seat fixedly arranged at the top of the transmission frame, and a driven shaft rotatably arranged in the support shaft seat. The front end of the driven shaft is a hexagonal structure, and a connecting shaft sleeve is slidably arranged outside the hexagonal structure. A driving motor is fixedly arranged at the top of the bottom support, and a belt transmission connection is arranged between the driving motor and the driven shaft. A vertical frame is fixedly arranged at the top of the bottom support, and a middle frame is fixedly arranged in the vertical frame. The application realizes quick and non-destructive testing. Through the design of an external driving motor and a slidable connecting shaft sleeve, a special motor and complex wiring are not needed for the fan, different types of fans can be quickly connected for testing, the testing efficiency is significantly improved, and the damage to the tested fan is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the fan testing technical field, especially to a fan heat dissipation assembly testing device. BACKGROUND

[0002] The fan heat dissipation assembly as a core heat dissipation component, its performance directly determines the running stability, service life and safety reliability of the downstream equipment, and its heat is mainly generated by mechanical transmission and air friction, and after generation, the heat dissipation effect needs to be detected to ensure that it will not affect the transmission effect due to heating at the working temperature.

[0003] The testing device currently used needs to be tested after assembling the motor, and it is laborious to install the motor and wiring, which is not conducive to rapid testing, and lacks corresponding positioning structure capable of rapid testing. SUMMARY

[0004] Therefore, the present application provides a fan heat dissipation assembly testing device in view of the above problems in the prior art.

[0005] The present application provides a fan heat dissipation assembly testing device, which specifically comprises: a bottom support, a transmission frame is fixedly arranged at the top rear side of the bottom support, a support shaft seat is fixedly arranged at the top of the transmission frame, and a driven shaft is rotatably arranged in the support shaft seat; the front end of the driven shaft is a hexagonal structure, a connecting shaft sleeve is slidably arranged outside the hexagonal structure; a driving motor is fixedly arranged at the top of the bottom support, and a belt transmission connection is arranged between the driving motor and the driven shaft; a vertical frame is fixedly arranged at the top of the bottom support, and a middle frame is fixedly arranged in the vertical frame; two groups of hinged seats are fixedly arranged at the top of the bottom support; two groups of electric cylinders are fixedly arranged at the top middle front side of the bottom support, a rotating roller frame is fixedly arranged at the extension end of each electric cylinder, and a supporting roller is rotatably arranged above each rotating roller frame; a positioning vertical frame is fixedly arranged at the top left side of the bottom support, a connecting seat is connected to the top of the positioning vertical frame through a swan neck pipe, an octagonal cylinder is integrally arranged above the connecting seat, and a magnetic frame is fixedly arranged at the bottom of the connecting seat.

[0006] Optionally, a trigger wheel A is fixedly arranged outside the driven shaft, a protruding structure is integrally arranged outside the trigger wheel A, a counting sensor A is arranged at the top middle of the transmission frame, and the counting sensor A can detect the protruding structure of the trigger wheel A.

[0007] Optionally, a ring-shaped heater is fixedly arranged at the front end of the middle frame, six groups of through holes are arranged around the ring-shaped heater, and a temperature sensor A is fixedly arranged in each through hole.

[0008] Optionally, the front side of the articulated seat is hingedly provided with two groups of long connecting rods, the front ends of the two groups of long connecting rods on the same side are hingedly provided with moving hinge seats, and the two groups of long connecting rods on the same side are parallel; the front ends of the two groups of moving hinge seats are fixedly provided with a connecting plate; the middle part of the lower long connecting rod is hingedly provided with a short connecting rod on the outside, and the outside of the two groups of short connecting rods is hingedly provided with a U-shaped frame; a lead screw is rotatably arranged at the top middle part of the bottom support, a servo motor is fixedly arranged at the top middle back side of the bottom support, the servo motor is in transmission connection with the lead screw, and the U-shaped frame is in threaded connection with the lead screw.

[0009] Optionally, the middle part of the connecting plate is fixedly provided with a pressure sensor; two groups of spring rods are slidably arranged on the two sides of the connecting plate, springs are sleeved on the rear ends of the spring rods, supporting plates are fixedly arranged on the rear ends of the spring rods, and two groups of backing plates are fixedly arranged at the two ends of the rear side of the supporting plate.

[0010] Optionally, two groups of guide rods are fixedly arranged at the bottom of the rotating roller frame; four groups of L-shaped seats are fixedly arranged at the top of the bottom support, and the guide rods are in sliding connection with the L-shaped seats.

[0011] Optionally, a U-shaped pull frame is slidably arranged in the positioning vertical frame, the opening of the U-shaped pull frame faces right, and a magnetic plate is fixedly arranged at the right end of the U-shaped pull frame.

[0012] Optionally, an impeller is rotatably arranged at the inside top of the octagonal cylinder, a trigger wheel B is fixedly arranged at the rear end of the rotating shaft of the impeller and protrudes from the octagonal cylinder, the trigger wheel B is integrally provided with a protruding structure outside, a counting sensor B is fixedly arranged at the rear side of the octagonal cylinder, the counting sensor B can detect the protruding structure of the trigger wheel B, and a wedge-shaped blocking structure is integrally arranged on one side of the inside of the octagonal cylinder.

[0013] Optionally, two groups of temperature sensors B are fixedly arranged at the two sides of the octagonal cylinder, and a handle is integrally arranged on the outside of the octagonal cylinder.

[0014] The beneficial effects are as follows:

[0015] Realize rapid non-destructive testing: through the design of an external driving motor and a slidable connecting shaft sleeve, without the need for special motors and complex wiring for the fan, different models of fans can be quickly connected for testing, the testing efficiency is significantly improved, and the damage to the tested fan is avoided.

[0016] Automatic precise positioning: the device integrates a connecting rod mechanism driven by an electric cylinder and a servo motor, can automatically complete the height and front-back position adjustment of the fan, and realizes stable clamping and high-precision positioning of the fan through pressure sensor and magnetic positioning assistance, thereby ensuring the consistency and accuracy of the testing conditions.

[0017] One-stop comprehensive detection: the device integrates the detection functions of key performance parameters such as rotating speed, body temperature, air outlet temperature and air outlet volume, and is equipped with a ring heater to simulate high-temperature working conditions, so that comprehensive and systematic performance evaluation of the fan heat dissipation assembly is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A working state structure schematic diagram of the embodiment in the application is shown;

[0019] Figure 2 Another angle structure schematic diagram of the embodiment in the application is shown; Figure 1

[0020] Figure 3 A side view structure schematic diagram of the embodiment in the application is shown; Figure 1

[0021] Figure 4 A three-dimensional structure schematic diagram of the embodiment in the application is shown;

[0022] Figure 5 Another angle structure schematic diagram of the embodiment in the application is shown; Figure 4

[0023] An assembly structure schematic diagram of the hinged seat in the embodiment in the application is shown; Figure 6

[0024] A transmission structure schematic diagram of the driven shaft in the embodiment in the application is shown; Figure 7

[0025] A three-dimensional structure schematic diagram of the connecting seat in the embodiment in the application is shown; Figure 8

[0026] A three-dimensional sectional structure schematic diagram of the connecting seat in the embodiment in the application is shown. Figure 9 LIST OF REFERENCE NUMERALS

[0027]

[0028] ​​​1, bottom support; 101, transmission frame; 102, support shaft seat; 103, driven shaft; 104, trigger wheel A; 105, shaft sleeve; 106, counting sensor A; 107, lead screw; 108, servo motor; 109, L-shaped seat; 2, drive motor; 3, vertical frame; 301, middle frame; 302, ring heater; 303, temperature sensor A; 4, hinged seat; 401, long connecting rod; 402, moving hinge seat; 403, connecting plate; 404, short connecting rod; 405, U-shaped frame; 406, pressure sensor; 407, spring rod; 408, supporting plate; 409, pad; 5, electric cylinder; 501, rotating roller frame; 502, supporting roller; 503, guide rod; 6, positioning vertical frame; 601, U-shaped pull frame; 602, magnetic plate; 7, connecting seat; 701, octagonal cylinder; 702, impeller; 703, trigger wheel B; 704, counting sensor B; 705, temperature sensor B; 706, handle; 8, magnetic frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, scheme and advantages of the technical scheme of the present application clearer, the technical scheme of the present application embodiment will be described clearly and completely below in combination with the drawings of the specific embodiments of the present application.

[0030] Embodiment 1: please refer to the drawings in the specification, Figures 1 to 9 as shown:

[0031] The present application provides a test device for fan heat dissipation assembly, comprising: bottom support 1, the top of the bottom support 1 is fixedly provided with transmission frame 101, the top of the transmission frame 101 is fixedly provided with support shaft seat 102, the support shaft seat 102 is rotatably provided with driven shaft 103; the front end of the driven shaft 103 is hexagonal structure, the hexagonal structure is slidably provided with shaft sleeve 105 outside; the top of the bottom support 1 is fixedly provided with drive motor 2, the drive motor 2 is provided with belt drive connection between the driven shaft 103; the top of the bottom support 1 is fixedly provided with vertical frame 3 in the middle, the middle of the vertical frame 3 is fixedly provided with middle frame 301; the top of the bottom support 1 is fixedly provided with two groups of hinged seat 4 on both sides; the top of the bottom support 1 is fixedly provided with two groups of electric cylinder 5 in the middle front side, the telescopic end of the electric cylinder 5 is fixedly provided with rotating roller frame 501, the rotating roller frame 501 is rotatably provided with supporting roller 502 above; the top left side of the bottom support 1 is fixedly provided with positioning vertical frame 6, the top of the positioning vertical frame 6 is connected with connecting seat 7 through goose neck pipe, the connecting seat 7 is integrally provided with octagonal cylinder 701 above, the bottom of the connecting seat 7 is fixedly provided with magnetic frame 8.

[0032] The outer part of the driven shaft 103 is fixedly provided with a trigger wheel A 104, the trigger wheel A 104 is integrally provided with a protruding structure outside, the top of the transmission frame 101 is provided with a counting sensor A 106, and the counting sensor A 106 can detect the protruding structure of the trigger wheel A 104.

[0033] The front end of the middle frame 301 is fixedly provided with an annular heater 302, six groups of through holes are formed in the annular heater 302, and a temperature sensor A 303 is fixedly arranged in each through hole.

[0034] The front side of the articulated seat 4 is hingedly provided with two groups of long connecting rods 401, the front ends of the two groups of long connecting rods 401 on the same side are hingedly provided with a moving articulated seat 402, and the two groups of long connecting rods 401 on the same side are parallel; the front ends of the two groups of moving articulated seats 402 are fixedly provided with a connecting plate 403; the middle part of the lower long connecting rod 401 is hingedly provided with a short connecting rod 404 outside, and the outer parts of the two groups of short connecting rods 404 are hingedly provided with a U-shaped frame 405; the top middle part of the bottom support 1 is rotatably provided with a lead screw 107, and the top rear side of the bottom support 1 is fixedly provided with a servo motor 108; the servo motor 108 is in transmission connection with the lead screw 107, and the U-shaped frame 405 is in threaded connection with the lead screw 107.

[0035] The middle part of the connecting plate 403 is fixedly provided with a pressure sensor 406; the two sides of the connecting plate 403 are slidably provided with two groups of spring rods 407, the rear ends of the spring rods 407 are sleeved with springs, the rear ends of the spring rods 407 are fixedly provided with supporting plates 408, and the rear sides of the supporting plates 408 are fixedly provided with two groups of pad plates 409.

[0036] The bottom two sides of the rotating roller frame 501 are fixedly provided with two groups of guide rods 503; the top of the bottom support 1 is fixedly provided with four groups of L-shaped seats 109, and the guide rods 503 are in sliding connection with the L-shaped seats 109.

[0037] The middle part of the connecting plate 403 is fixedly provided with a pressure sensor 406; the two sides of the connecting plate 403 are slidably provided with two groups of spring rods 407, the rear ends of the spring rods 407 are sleeved with springs, the rear ends of the spring rods 407 are fixedly provided with supporting plates 408, and the rear sides of the supporting plates 408 are fixedly provided with two groups of pad plates 409.

[0038] The inside of the octagonal cylinder 701 is rotatably provided with an impeller 702, the rear end of the rotating shaft of the impeller 702 penetrates through the octagonal cylinder 701 and is fixedly provided with a trigger wheel B 703, and the trigger wheel B 703 is integrally provided with a protruding structure outside; the rear side of the octagonal cylinder 701 is fixedly provided with a counting sensor B 704, and the counting sensor B 704 can detect the protruding structure of the trigger wheel B 703; one side of the inside of the octagonal cylinder 701 is integrally provided with a wedge-shaped blocking structure.

[0039] The two sides of the octagonal cylinder 701 are fixedly provided with two groups of temperature sensors B 705, and the outside of the octagonal cylinder 701 is integrally provided with a handle 706.

[0040] I. Fan position adjustment and connection

[0041] Initial placement: Place the fan to be tested above the support roller 502, which is not yet installed with its own motor, and will be driven by the drive motor 2;

[0042] Height adjustment: To align the fan shaft with the driven shaft 103, start the electric cylinder 5, which moves the rotating roller frame 501 and the support roller 502 up and down through the extension action of the electric cylinder 5, thereby adjusting the position of the fan until the fan shaft is precisely aligned with the driven shaft 103;

[0043] Shaft connection: After the fan shaft is aligned with the driven shaft 103, manually move and set the coupling sleeve 105 to the outside of the fan shaft, and then use the jack to fix the coupling sleeve 105, completing the connection of the fan and the driven shaft 103; The size of the coupling sleeve 105 can be customized according to actual needs to ensure that it can be connected with the fan shaft;

[0044] II. Fan fixation and position calibration assistance

[0045] Move the magnetic plate 602 to fix the outlet position of the fan using the adsorption characteristics of the magnetic plate 602; Under the restriction of the magnetic plate 602, the fan cannot rotate randomly and can always maintain Figure 1 The state shown provides stable conditions for further adjusting the position of the fan shaft, facilitating accurate calibration;

[0046] III. Fan positioning and heating preparation

[0047] Push positioning: Start the servo motor 108, which drives the lead screw 107 to rotate, and the lead screw 107 drives the U-shaped frame 405 to move forward; During the movement of the U-shaped frame 405, the short connecting rod 404 pushes the long connecting rod 401 upward, and the long connecting rod 401 in turn drives the connecting plate 403 to move, so that the pad 409 contacts the fan and pushes the fan backward;

[0048] Stop moving and fix: When the fan rear side contacts the annular heater 302, the fan stops moving backward; At this time, the connecting plate 403 continues to move forward, and when the pressure sensor 406 contacts the support plate 408, the pressure sensor 406 senses the pressure signal, and the connecting plate 403 stops moving through the preset program control, at this time the fan is stably fixed.

[0049] IV. Fan start-up and speed detection

[0050] Start-up: Start the drive motor 2, which drives the driven shaft 103 to rotate through belt transmission, and the driven shaft 103 drives the fan shaft to rotate through the coupling sleeve 105, and the fan starts to work;

[0051] Speed ​​detection: During the rotation of the driven shaft 103, the trigger wheel A104 will rotate synchronously. The counting sensor A106 will be triggered by the trigger wheel A104 and count. The working speed of the fan can be calculated from the counting data.

[0052] V. Temperature Detection

[0053] Fan body temperature detection: The temperature of the fan itself can be directly detected by the temperature sensor A303, so as to monitor the temperature status of the fan body in real time during operation.

[0054] Air outlet temperature detection: The B705 temperature sensor can be used to detect the air outlet temperature at the fan outlet to understand the temperature of the air outlet from the fan.

[0055] VI. High Temperature Simulation Test

[0056] When it is necessary to simulate the temperature environment of a fan in operation, an annular heater 302 can be used to heat the fan and heat the fan casing to the temperature under normal operating conditions. During the heating process, the fan continues to rotate to test whether the internal shaft or fan blades will deform due to the increase in temperature, which could lead to the fan seizing up.

[0057] VII. Airflow Measurement and Operating Status Inspection

[0058] Installation of testing components: The staff uses the handle 706 to manually install the connector 7 at the fan outlet and fixes the connector 7 by the adsorption of the magnetic frame 8;

[0059] Air volume calculation: When the fan is discharging air, the airflow passes through the octagonal cylinder 701, which drives the impeller 702 and trigger wheel B703 inside the cylinder to rotate. The counting sensor B704 is triggered by the trigger wheel B703 and counts. The air volume of the fan can be calculated based on the counting result.

[0060] Operating status inspection: By measuring the fan's outlet air velocity and outlet air temperature, and combining this with previously measured data such as fan operating speed and body temperature, a comprehensive inspection is conducted to determine whether the fan can maintain normal operating status.

[0061] The specific usage and function of this embodiment: In this invention, when used, according to... Figure 1 In this state, the test fan is placed above the support roller 502. Since the fan is not equipped with a motor, it is driven by the drive motor 2. The position of the fan needs to be adjusted so that the fan shaft is aligned with the driven shaft 103. The position of the fan can be adjusted by moving the roller frame 501 and the support roller 502 up and down through the extension electric cylinder 5. The fan shaft is aligned with the driven shaft 103. The connecting sleeve 105 is manually moved and fitted onto the outside of the fan shaft and fixed by the set screw.

[0062] The mobile magnetic plate 602 can adsorb and fix the outlet position of the fan. Due to the limitation of the magnetic plate 602, the fan cannot rotate at will, and remains in a state, which is convenient for adjusting the position of the rotating shaft thereof; Figure 1

[0063] The servo motor 108 is started to drive the screw rod 107 to rotate, the screw rod 107 drives the U-shaped frame 405 to move forward, and the long connecting rod 401 is pushed upward and forward to move the connecting plate 403, so that the pad plate 409 contacts the fan, the fan is moved backward, the fan rear side contacts the annular heater 302, and the movement is stopped, the connecting plate 403 continues to move forward, and when the pressure sensor 406 contacts the supporting plate 408, the pressure is sensed to stop the movement of the connecting plate 403 through the program, and the fan is fixed at this time;

[0064] The driving motor 2 is started to drive the driven shaft 103 to rotate, the driven shaft 103 drives the fan rotating shaft to rotate and work through the connecting shaft sleeve 105. The size of the connecting shaft sleeve 105 can be customized, and the fan rotating shaft can be matched and connected;

[0065] The driven shaft 103 drives the trigger wheel A 104 to rotate, and the counting sensor A 106 is triggered to count, and the working speed of the fan is calculated. The counting sensor A 106 and the counting sensor B 704 are both inductive proximity sensors;

[0066] The temperature sensor A 303 can directly detect the temperature of the fan, and the temperature sensor B 705 can detect the air temperature;

[0067] When the temperature of the fan in the working state needs to be simulated, the annular heater 302 can be used to heat it, the fan housing is heated to the working temperature in the normal state, the fan continues to rotate, and whether the internal rotating shaft or the fan blade is deformed to cause jamming due to the temperature rise can be tested;

[0068] The handle 706 is manually installed on the connecting seat 7 at the outlet of the fan, and is adsorbed and fixed through the magnetic frame 8. When the fan blows air, the air passes through the octagonal cylinder 701, drives the impeller 702 and the trigger wheel B 703 to rotate, triggers the counting sensor B 704 to count, calculates the air volume, and measures the wind speed and temperature to check whether the fan can maintain normal work.​

Claims

1. A testing device for a fan cooling assembly, characterized in that, include: A bottom bracket (1) is provided, and a transmission frame (101) is fixedly installed on the top rear side of the bottom bracket (1). A support shaft seat (102) is fixedly installed on the top of the transmission frame (101), and a driven shaft (103) is rotatably installed in the support shaft seat (102). The front end of the driven shaft (103) is a hexagonal structure, and a connecting sleeve (105) is slidably installed on the outside of the hexagonal structure. A drive motor (2) is fixedly installed on the top of the bottom bracket (1), and the drive motor (2) is connected to the driven shaft (103). A belt drive connection is provided; a vertical frame (3) is fixedly installed at the top center of the bottom support (1), and a middle frame (301) is fixedly installed at the middle of the vertical frame (3); two sets of hinge seats (4) are fixedly installed on both sides of the top of the bottom support (1); two sets of electric cylinders (5) are fixedly installed on the front side of the top of the bottom support (1), and a roller frame (501) is fixedly installed at the telescopic end of each electric cylinder (5), and a support roller (502) is rotatably installed above each roller frame (501); the top of the bottom support (1) A positioning frame (6) is fixedly installed on the left side. The top of the positioning frame (6) is connected to a connecting seat (7) through a gooseneck tube. An octagonal cylinder (701) is integrally installed above the connecting seat (7). A magnetic frame (8) is fixedly installed at the bottom of the connecting seat (7). Two sets of long connecting rods (401) are hinged to the front side of the hinge seat (4). The front ends of the two sets of long connecting rods (401) on the same side are hinged to movable hinge seats (402). The two sets of long connecting rods (401) on the same side are parallel. The two sets of movable hinge seats (402) are... A connecting plate (403) is fixedly installed at the front end; short connecting rods (404) are hinged to the middle of the lower long connecting rod (401), and U-shaped frames (405) are hinged to the outside of the two sets of short connecting rods (404); a lead screw (107) is rotatably installed at the top middle of the bottom support (1), and a servo motor (108) is fixedly installed at the top middle rear side of the bottom support (1). The servo motor (108) is connected to the lead screw (107) for transmission, and the U-shaped frame (405) is threadedly connected to the lead screw (107).

2. The testing device for a fan cooling assembly as described in claim 1, characterized in that, A trigger wheel A (104) is fixedly installed on the outside of the driven shaft (103). A protruding structure is integrally provided on the outside of the trigger wheel A (104). A counting sensor A (106) is mounted at the top center of the transmission frame (101). The counting sensor A (106) can detect the protruding structure of the trigger wheel A (104).

3. The testing device for a fan cooling assembly as described in claim 1, characterized in that, The front end of the intermediate frame (301) is fixedly provided with an annular heater (302), and the annular heater (302) has six sets of through holes, each of which is fixedly provided with a temperature sensor A (303).

4. The testing device for a fan cooling assembly as described in claim 1, characterized in that, A pressure sensor (406) is fixedly installed in the middle of the connecting plate (403); two sets of spring rods (407) are slidably installed on both sides of the connecting plate (403), and springs are sleeved on the rear ends of the spring rods (407). A support plate (408) is fixedly installed at the rear ends of the spring rods (407), and two sets of pads (409) are fixedly installed at both ends of the rear side of the support plate (408).

5. The testing device for a fan cooling assembly as described in claim 1, characterized in that, Two sets of guide rods (503) are fixedly installed on both sides of the bottom of the roller frame (501); four sets of L-shaped seats (109) are fixedly installed on the top of the bottom support (1), and the guide rods (503) are slidably connected to the L-shaped seats (109).

6. The testing device for a fan cooling assembly as described in claim 1, characterized in that, A U-shaped bracket (601) is slidably arranged in the positioning frame (6). The opening of the U-shaped bracket (601) faces to the right, and a magnetic plate (602) is fixedly arranged at the right end of the U-shaped bracket (601).

7. The testing device for a fan cooling assembly as described in claim 1, characterized in that, An impeller (702) is rotatably mounted inside the octagonal cylinder (701). The rear end of the impeller (702) shaft passes through the octagonal cylinder (701) and a trigger wheel B (703) is fixedly mounted thereon. A protruding structure is integrally mounted on the outside of the trigger wheel B (703). A counting sensor B (704) is fixedly mounted on the rear side of the octagonal cylinder (701). The counting sensor B (704) can detect the protruding structure of the trigger wheel B (703). A wedge-shaped blocking structure is integrally mounted on one side inside the octagonal cylinder (701).

8. The testing device for a fan cooling assembly as described in claim 1, characterized in that, Two sets of temperature sensors B (705) are fixedly installed on both sides of the octagonal cylinder (701), and a handle (706) is integrally installed on the outside of the octagonal cylinder (701).

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