Air volume and air pressure testing machine for cooling fan

Abstract

The utility model belongs to the technical field of air volume and air pressure detection, and particularly relates to a cooling fan air volume and air pressure testing machine which comprises a workbench, a lifting mechanism, a clamping mechanism and a testing mechanism. A mounting seat is arranged on the workbench, and a placing area is arranged on the mounting seat; the lifting mechanism is arranged in the mounting seat, is positioned below the placement area and is used for adjusting the height of the cooling fan; the clamping mechanism comprises two groups of clamping parts which are oppositely arranged; the clamping part is arranged on the mounting seat and is positioned on one side of the placing area; the clamping part is provided with a clamping piece, and the clamping part is used for driving the clamping piece to be close to the cooling fan and clamping the cooling fan; and the testing mechanism is arranged on the workbench, is positioned on one side of the mounting seat, and is used for testing the air volume and the air pressure of the cooling fan.

Description

Technical Field

[0001] The utility model belongs to the technical field of air volume and air pressure detection, and in particular relates to an air volume and air pressure testing machine for a heat dissipation fan. Background Art

[0002] With the advent of the Internet age, people are using computers more and more widely in their work and life. Since computers generate a lot of heat when they run for a long time, the temperature inside the chassis rises, which can easily cause computer crashes. Computers are equipped with cooling fans to discharge the heat generated by the computer when it is working, ensuring that the computer will not overheat.

[0003] After the cooling fan is produced, it is usually subjected to air volume and pressure tests to screen out good and bad products. At present, the existing cooling fan air volume and pressure tester usually fixes the cooling fan on the mounting base, and provides power to the cooling fan through the control device, and then detects the incoming air volume and pressure through the wind collecting tube facing the wind direction. However, the existing test machine has poor versatility for cooling fans of different specifications. Its mounting base often corresponds to cooling fans of the same specification. If cooling fans of other specifications are tested, the fixing base needs to be replaced, and the replacement steps are complicated, time-consuming and laborious. Utility Model Content

[0004] The purpose of the utility model is to provide a cooling fan air volume and pressure testing machine, aiming to solve the technical problem that the existing testing machines in the prior art have poor versatility and their mounting seats often correspond to cooling fans of the same specification. If cooling fans of other specifications are to be tested, the fixing seat needs to be replaced.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a cooling fan air volume and pressure testing machine, comprising a workbench, a lifting mechanism, a clamping mechanism and a testing mechanism; a mounting seat is provided on the workbench, and a placement area is provided on the mounting seat; the lifting mechanism is arranged in the mounting seat and is located below the placement area, and is used to adjust the height of the cooling fan; the clamping mechanism comprises two groups of clamping components arranged opposite to each other; the clamping component is arranged on the mounting seat and is located on one side of the placement area; the clamping component has a clamping piece, and the clamping component is used to drive the clamping piece to approach the cooling fan and clamp it; the testing mechanism is arranged on the workbench and is located on one side of the mounting seat, and is used for air volume and pressure testing of the cooling fan.

[0006] Optionally, the clamping component includes a clamping driving member; the clamping driving member is arranged on one side of the clamping member, and an output end of the clamping driving member is connected to the clamping member.

[0007] Optionally, the clamping member includes a moving block and a clamping claw; the moving block is slidably connected to the mounting seat, and one side of the moving block is connected to the clamping driving member; the clamping claw is fixed on the moving block, and a pressure sensor is provided in the clamping claw.

[0008] Optionally, the clamp includes a fixing portion and a clamping portion; the fixing portion is arranged on the moving block; the clamping portion is arranged on one side of the fixing portion, and the pressure sensor is arranged in the clamping portion.

[0009] Optionally, a buffer is provided between the clamping part and the fixed part; the buffer includes a connecting part and a spring; the connecting part is provided on one side of the clamping part and is slidably connected to one side of the fixed part; the spring is provided in the fixed part and is located between the connecting part and the fixed part.

[0010] Optionally, the lifting mechanism includes a fixed seat, a lifting module and a lifting plate; the fixed seat is arranged in the center of the mounting seat; the lifting module is fixed in the mounting seat, and the lifting module is connected to the lifting plate; the lifting plate is passed through the top of the mounting seat.

[0011] Optionally, the testing mechanism includes an air collecting tube, an air volume tester, a wind pressure tester, a rectifier plate and a temperature and humidity sensor; the air collecting tube is arranged on the workbench, and a first connecting rod, a second connecting rod and a third connecting rod are arranged in sequence along the wind direction in the air collecting tube; the air volume tester and the wind pressure tester are arranged on the first connecting rod, and the wind pressure tester is arranged on the outside of the air volume tester; the rectifier plate is arranged between the second connecting rod and the third connecting rod; the temperature and humidity sensor is arranged on the third connecting rod, and one end of the temperature and humidity sensor is passed through the rectifier plate.

[0012] Optionally, one end of the air volume tester is connected to a rotating shaft; the end of the rotating shaft is connected to a fan blade; and the connecting shaft is connected to the second connecting rod through a fixing sleeve.

[0013] Optionally, if a plurality of groups of hexagonal holes are provided in the rectifier plate, one end of the temperature and humidity sensor is located in the hexagonal hole.

[0014] The above one or more technical solutions in the cooling fan air volume and air pressure testing machine provided by the embodiment of the utility model have at least one of the following technical effects: by setting a lifting mechanism and a clamping mechanism, the cooling fan is placed in the placement area, and the lifting mechanism is started to adjust the height of the cooling fan so that the central axis of the cooling fan coincides with the central axis of the testing mechanism. At this time, the clamping components on both sides of the cooling fan are started, driving the clamping parts thereon to move inward relative to the cooling fan and clamp the cooling fan to adapt to the clamping of cooling fans of different specifications, thereby simplifying the clamping steps of the testing machine and improving the versatility of the testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A front structural schematic diagram of a cooling fan air volume and pressure tester provided by an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the side structure of the clamping mechanism and the lifting mechanism provided in the embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the side structure of the clamping component provided by an embodiment of the utility model;

[0019] Figure 4 A schematic structural diagram of a rectifier plate provided in an embodiment of the utility model.

[0020] Among them, the reference numerals in the figure are:

[0021] 10. Workbench; 11. Mounting seat; 20. Lifting mechanism; 21. Fixed seat; 22. Lifting module; 23. Lifting plate; 30. Clamping component; 31. Clamping member; 311. Moving block; 312. Clamping claw; 312a. Fixed part; 312b. Clamping part; 312c. Pressure sensor; 32. Clamping drive member; 33. Buffer member; 331. Connecting member; 332. Spring; 40. Testing mechanism; 41. Wind collecting tube; 42. Air volume tester; 421. Rotating shaft; 422. Fan blade; 43. Wind pressure tester; 44. Rectifier plate; 441. Hexagonal hole; 45. Temperature and humidity sensor; 46. First connecting rod; 47. Second connecting rod; 48. Third connecting rod. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0026] In one embodiment of the present invention, Figures 1 to 4 As shown, a cooling fan air volume and pressure testing machine is provided, including a workbench 10, a lifting mechanism 20, a clamping mechanism and a testing mechanism 40. A mounting seat 11 is provided on the workbench 10, and a placement area is provided on the mounting seat 11. The lifting mechanism 20 is arranged in the mounting seat 11 and is located below the placement area, and is used to adjust the height of the cooling fan. The clamping mechanism includes two groups of clamping components 30 arranged opposite to each other. The clamping component 30 is provided on the mounting seat 11 and is located on one side of the placement area. The clamping component 30 has a clamping member 31, and the clamping member 30 is used to drive the clamping member 31 close to the cooling fan and clamp it. The testing mechanism 40 is arranged on the workbench 10 and is located on one side of the mounting seat 11, and is used for air volume and pressure testing of the cooling fan.

[0027] Specifically, the cooling fan is placed in the placement area, and the lifting mechanism 20 is started to adjust the height of the cooling fan so that the central axis of the cooling fan coincides with the central axis of the testing mechanism 40. At this time, the clamping components 30 on both sides of the cooling fan are started, driving the clamping parts 31 thereon to move inward relative to the cooling fan and clamp the cooling fan to adapt to the clamping of cooling fans of different specifications, thereby simplifying the clamping steps of the testing machine and improving the versatility of the testing machine.

[0028] Furthermore, the clamping member 30 includes a clamping drive 32, which is a cylinder. The clamping drive 32 is arranged on one side of the clamping member 31, and the output end of the clamping drive 32 is connected to the clamping member 31. After the cooling fan is adjusted by the lifting mechanism 20, the clamping drive 32 is started, and the clamping drive 32 drives the clamping member 31 to approach the cooling fan. At this time, the cooling fan is clamped by the clamping members 31 on both sides, so that the clamping mechanism can adapt to cooling fans of different specifications, and the clamping member 31 is driven by the clamping drive 32 to achieve clamping, which simplifies the clamping steps of the cooling fan and improves the versatility of the test machine.

[0029] Furthermore, the clamping member 31 includes a moving block 311 and a clamping jaw 312. The moving block 311 is slidably connected to the mounting seat 11, and one side of the moving block 311 is connected to the clamping driving member. The clamping jaw 312 is fixed to the moving block 311, and a pressure sensor 312c is provided in the clamping jaw 312.

[0030] In this embodiment, a slider is provided at the bottom end of the moving block 311, and a slide rail is provided on the mounting seat 11 corresponding to the slider. The slider is slidably connected to the slide rail. Through the setting of the slider and the slide rail, the clamping member 31 is more stable during the movement process, thereby improving the movement stability of the clamping member 31.

[0031] By providing the pressure sensor 312c, the clamping force of the clamping jaw 312 is monitored to avoid damage to the cooling fan due to excessive clamping force.

[0032] Furthermore, the clamping jaw 312 includes a fixed portion 312a and a clamping portion 312b. The fixed portion 312a is arranged on the moving block 311. The clamping portion 312b is arranged on one side of the fixed portion 312a, and the pressure sensor 312c is arranged in the clamping portion 312b. A buffer 33 is arranged between the clamping portion 312b and the fixed portion 312a. The buffer 33 includes a connecting member 331 and a spring 332. The connecting member 331 is arranged on one side of the clamping portion 312b and is slidably connected to one side of the fixed portion 312a, and the connecting member 331 is a T-shaped structure. The spring 332 is arranged in the fixed portion 312a and is located between the connecting member 331 and the fixed portion 312a. When clamping, the clamping claws 312 and the outer wall of the cooling fan contact each other. Through the action of the connecting piece 331 and the spring 332, the clamping part 312b is smoothly squeezed against the inside of the fixed part 312a, reducing the impact force between the clamping part 312b and the fixed part 312a, so that the cooling fan can be smoothly clamped in the clamping claws 312 on both sides.

[0033] Furthermore, the lifting mechanism 20 includes a fixed seat 21, a lifting module 22 and a lifting plate 23. The fixed seat 21 is arranged at the center of the mounting seat 11. The lifting module 22 is fixed in the mounting seat 11, and the lifting module 22 is connected to the lifting plate 23. The lifting plate 23 is penetrated at the top of the mounting seat 11.

[0034] In this embodiment, the lifting module 22 is composed of a plurality of groups of circumferentially distributed electric telescopic rods, which are connected to an external control end. The staff can raise or lower the lifting module 22 according to the actual required height.

[0035] When the cooling fan is placed in the placement area, the lifting module 22 is started and drives the lifting plate 23 to move up or down, so that the cooling fan moves to a position where its central axis coincides with the central axis of the testing mechanism 40, so as to facilitate subsequent testing of the cooling fan, thereby completing the height adjustment of the cooling fan.

[0036] Further, the testing mechanism 40 includes an air collecting tube 41, an air volume tester 42, an air pressure tester 43, a rectifier plate 44 and a temperature and humidity sensor 45. The air collecting tube 41 is arranged on the workbench 10, and a first connecting rod 46, a second connecting rod 47 and a third connecting rod 48 are arranged in sequence along the wind direction in the air collecting tube 41. The air volume tester 42 and the air pressure tester 43 are arranged on the first connecting rod 46, and the air pressure tester 43 is arranged outside the air volume tester 42. The rectifier plate 44 is arranged between the second connecting rod 47 and the third connecting rod 48. The temperature and humidity sensor 45 is arranged on the third connecting rod 48, and one end of the temperature and humidity sensor 45 is inserted into the rectifier plate 44. A rotating shaft 421 is connected to one end of the air volume tester 42. A fan blade 422 is connected to the end of the rotating shaft 421. The connecting shaft is connected to the second connecting rod 47 through a fixed sleeve. By setting up an air volume tester 42, an air pressure tester 43 and a temperature and humidity sensor 45, the air volume, air pressure, temperature and humidity of the cooling fan are tested, and the corresponding test data are convenient for the staff to record and observe, and the rectifier plate 44 can improve the uniformity of the airflow, avoid the loss of airflow, and improve the accuracy of the test.

[0037] Furthermore, if a plurality of groups of hexagonal holes 441 are provided in the rectifying plate 44, one end of the temperature and humidity sensor 45 is located in the hexagonal hole 441. By providing a rectifying plate 44 with a plurality of groups of hexagonal holes 441, the uniformity of the airflow can be improved, the loss of the airflow can be avoided, and the accuracy of the test can be improved.

[0038] By setting up a lifting mechanism 20 and a clamping mechanism, the cooling fan is placed in the placement area, and the lifting mechanism 20 is started to adjust the height of the cooling fan so that the central axis of the cooling fan coincides with the central axis of the testing mechanism 40. At this time, the clamping components 30 on both sides of the cooling fan are started, driving the clamping parts 31 thereon to move inward relative to the cooling fan and clamp the cooling fan to adapt to the clamping of cooling fans of different specifications, thereby simplifying the clamping steps of the testing machine and improving the versatility of the testing machine.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling fan air volume and pressure tester, characterized in that: include: A workbench, wherein a mounting seat is provided on the workbench, and a placement area is provided on the mounting seat; A lifting mechanism, the lifting mechanism is arranged in the mounting seat and below the placement area, and is used to adjust the height of the cooling fan; The clamping mechanism comprises two sets of clamping components arranged opposite to each other; the clamping components are arranged on the mounting seat and are located on one side of the placement area; the clamping components have clamping pieces, and the clamping pieces are used to drive the clamping pieces to approach the cooling fan and clamp them; A testing mechanism is arranged on the workbench and located on one side of the mounting seat, and is used for testing the air volume and pressure of the cooling fan.

2. The cooling fan air volume and air pressure tester according to claim 1, characterized in that: The clamping component comprises a clamping driving member; the clamping driving member is arranged at one side of the clamping member, and an output end of the clamping driving member is connected to the clamping member.

3. The cooling fan air volume and air pressure tester according to claim 2, characterized in that: The clamping member comprises a moving block and a clamping claw; the moving block is slidably connected to the mounting seat, and one side of the moving block is connected to the clamping driving member; the clamping claw is fixed on the moving block, and a pressure sensor is arranged inside the clamping claw.

4. The cooling fan air volume and pressure tester according to claim 3, characterized in that: The clamping claw comprises a fixing part and a clamping part; the fixing part is arranged on the moving block; the clamping part is arranged on one side of the fixing part, and the pressure sensor is arranged in the clamping part.

5. The cooling fan air volume and pressure tester according to claim 4, characterized in that: A buffer is provided between the clamping part and the fixing part; the buffer comprises a connecting part and a spring; the connecting part is provided on one side of the clamping part and is slidably connected to one side of the fixing part; the spring is provided in the fixing part and is located between the connecting part and the fixing part.

6. The cooling fan air volume and air pressure tester according to claim 1, characterized in that: The lifting mechanism comprises a fixed seat, a lifting module and a lifting plate; the fixed seat is arranged at the center of the mounting seat; the lifting module is fixed in the mounting seat, and the lifting module is connected to the lifting plate; the lifting plate is passed through the top of the mounting seat.

7. The cooling fan air volume and air pressure tester according to claim 1, characterized in that: The testing mechanism includes an air collecting tube, an air volume tester, a wind pressure tester, a rectifier plate and a temperature and humidity sensor; the air collecting tube is arranged on the workbench, and a first connecting rod, a second connecting rod and a third connecting rod are arranged in sequence along the wind direction in the air collecting tube; the air volume tester and the wind pressure tester are arranged on the first connecting rod, and the wind pressure tester is arranged on the outside of the air volume tester; the rectifier plate is arranged between the second connecting rod and the third connecting rod; the temperature and humidity sensor is arranged on the third connecting rod, and one end of the temperature and humidity sensor is passed through the rectifier plate.

8. The cooling fan air volume and air pressure tester according to claim 7, characterized in that: One end of the air volume tester is connected to a rotating shaft; the end of the rotating shaft is connected to a fan blade; and the connecting shaft is connected to the second connecting rod through a fixing sleeve.

9. The cooling fan air volume and air pressure tester according to claim 8, characterized in that: If a plurality of groups of hexagonal holes are provided in the rectifier plate, one end of the temperature and humidity sensor is located in the hexagonal hole.

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