A brushless motor speed tester

Abstract

The utility model relates to the technical field of motor speed testing, and discloses a brushless motor speed tester, including a test structure, a heat dissipation structure and a mobile structure, wherein the heat dissipation structure is located on the lower surface of the test structure, and the mobile structure is located at the bottom of the test structure; the test structure includes a tester body, a display is arranged on the upper surface of the tester body, a socket is fixedly connected to the side away from the display, a slot is provided inside the socket, a measuring head is plugged inside the slot, a connecting line is fixedly connected to the top of the measuring head, a groove is provided at the bottom of the tester body, a slide bar is fixedly connected to the upper surface of the groove, and a placement plate is arranged on the top of the slide bar. The utility model provides a slide groove to slide along with the slide bar, so that the placement plate is pulled out, the motor body is placed on the plate, and then the measuring head is connected to the motor body for measurement, thereby improving the convenience of the overall measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of motor speed testing, in particular to a brushless motor speed tester. Background Art

[0002] The brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. Since the brushless DC motor is operated in an automatic manner, it does not require an additional starting winding on the rotor like a synchronous motor that starts under heavy load under variable frequency speed regulation, nor does it produce oscillation and loss of step when the load suddenly changes. The permanent magnets of small and medium-capacity brushless DC motors now mostly use rare earth neodymium iron boron (Nd-Fe-B) materials with high magnetic energy levels. Therefore, the volume of the rare earth permanent magnet brushless motor is one frame size smaller than that of the three-phase asynchronous motor of the same capacity. Brushless motors are usually used in equipment with relatively high control requirements and relatively high speeds, such as model aircraft, precision instruments and other equipment that strictly control the motor speed and reach very high speeds.

[0003] The speed test is one of the motor index tests, which is tested by a speed tester. Generally speaking, the speed tester is designed for a certain model of motor. The application number is CN202022934348.1. The utility model provides a new type of DC motor speed tester, including a measuring machine and a supporting device installed at the bottom of the measuring machine, fixed columns are installed on the sides of both ends of the measuring machine, a front plate is installed at the front end of the measuring machine, a pair of pins are installed on the top of the front plate, and measuring pens are installed on the tops of the two pins. The measuring pen includes a connecting head, a connecting wire is connected to the side of the connecting head, and the other end of the connecting wire is connected to the measuring head, and a measuring needle is installed at the bottom of the measuring head. The supporting device includes a pair of elastic rods, a plurality of bottom rods are connected between the two elastic rods, a chassis is sleeved on the side of the bottom end of the elastic rod, a sleeve column is sleeved on the top of the elastic rod, and the sleeve column is sleeved and matched with the fixed column. First, adjust the angle of the measuring machine, and slowly rotate the measuring machine through the fixed column and the rotating hole. After the adjustment is completed, pull out its measuring head from the socket, hang its two measuring needles to the measuring position, and observe the data displayed on the measuring machine. After the measurement is completed, insert its measuring head into the socket and insert its measuring needle into the slot to complete the overall measurement work.

[0004] Although this can be used to perform stable measurements on some special surfaces and the measurement location is not restricted, there is no placement point for the motor body during the measurement process, making the measurement very inconvenient, and the entire device cannot be moved, making the measurement very inconvenient. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a brushless motor speed tester.

[0006] The utility model is implemented by the following technical scheme: a brushless motor speed tester, comprising a test structure, a heat dissipation structure and a moving structure, wherein the heat dissipation structure is located on the lower surface of the test structure, and the moving structure is located at the bottom of the test structure;

[0007] The test structure includes a tester body, a display is provided on the upper surface of the tester body, a socket is fixedly connected to the side away from the display, a slot is provided inside the socket, a measuring head is plugged into the slot, a connecting wire is fixedly connected to the top of the measuring head, a groove is provided at the bottom of the tester body, a sliding rod is fixedly connected to the upper surface of the groove, a placement plate is provided on the top of the sliding rod, a sliding groove is provided on the lower surface of the placement plate, and a handle is provided at the left end of the placement plate.

[0008] As a further improvement of the above solution, the number of the socket, the measuring head and the connecting wire are all two, and the groove extends to the outer wall of the tester body.

[0009] As a further improvement of the above solution, the number of the sliding rods is two and they are symmetrically distributed left and right, the size of the placement plate is equal to the size of the groove, the size of the slide groove matches the size of the sliding rod, and the handle is set as a ring structure.

[0010] Through the above technical solution, when the handle is held, the slide groove on the lower surface of the placement plate slides along with the slide bar, so that the placement plate is pulled out. The motor body is placed on the plate, and then the measuring head is connected to the motor body for measurement. The measured speed data is displayed on the display, and the measurement is completed. The convenience of the overall measurement is improved.

[0011] As a further improvement of the above solution, the heat dissipation structure includes a heat dissipation box, the interior of the heat dissipation box is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to fan blades, and a vent is opened at the bottom of the heat dissipation box.

[0012] As a further improvement of the above solution, the heat dissipation box is arranged at the bottom of the groove.

[0013] Through the above technical solution, during the measurement process, the fan blades rotate to keep the tester body ventilated and heat-dissipated with the outside world through the vents, preventing high temperatures from causing abnormal operation and errors in the measurement results.

[0014] As a further improvement of the above solution, the movable structure includes a fixed rod, an outer wall of the fixed rod is sleeved with a sleeve, one side of the sleeve is fixedly connected to a support rod, and the bottom of the support rod is fixedly connected to a movable wheel.

[0015] As a further improvement of the above solution, the number of the fixing rods is two and they are symmetrically distributed on the outer wall of the tester body, and the supporting rod is configured as a U-shaped structure.

[0016] Through the above technical solution, the fixing rod is connected with the sleeve so that the tester body is fixed on the support rod, and the support rod is pushed by the moving wheel so that the whole device can be moved to the measurement position at will, thereby improving the accuracy of the measurement. At the same time, the cooperation between the fixing rod and the sleeve makes the tester body set as a detachable structure, which is convenient for the maintenance of the tester body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model is provided with a display, a slide bar, a placement plate and a slide groove. When the handle is held, the slide groove on the lower surface of the placement plate slides along with the slide bar, so that the placement plate is pulled out. The motor body is placed on the plate, and then the measuring head is connected to the motor body for measurement. The measured speed data is displayed on the display, so that the measurement is completed. The convenience of the overall measurement is improved.

[0019] The utility model provides a fan blade and a vent. During the measurement process, the fan blade rotates so that the tester body is ventilated and heat-dissipated with the outside world through the vent, thereby preventing high temperature from causing abnormal operation and errors in the measurement results. By providing a fixed rod, a sleeve, a support rod and a moving wheel, the fixed rod is connected to the sleeve so that the tester body is fixed on the support rod, and the support rod is pushed by the moving wheel so that the entire device can be moved to the measurement position at will, thereby improving the accuracy of the measurement. At the same time, the cooperation between the fixed rod and the sleeve enables the tester body to be set as a detachable structure, which is convenient for the maintenance of the tester body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 For the utility model as a whole Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0022] Figure 3 This is a schematic diagram of the overall bottom structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the test structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0025] Description of main symbols:

[0026] 1. Test structure; 101. Tester body; 102. Display; 103. Socket; 104. Slot; 105. Measuring head; 106. Connecting wire; 107. Groove; 108. Slide bar; 109. Placement plate; 110. Slide groove; 111. Handle; 2. Heat dissipation structure; 201. Heat dissipation box; 202. Rotating shaft; 203. Fan blade; 204. Ventilation port; 3. Moving structure; 301. Fixed rod; 302. Sleeve; 303. Support rod; 304. Moving wheel. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5 , a brushless motor speed tester of this embodiment includes a test structure 1, a heat dissipation structure 2 and a moving structure 3, the heat dissipation structure 2 is located on the lower surface of the test structure 1, and the moving structure 3 is located at the bottom of the test structure 1;

[0030] The test structure 1 includes a tester body 101, a display 102 is arranged on the upper surface of the tester body 101, a socket 103 is fixedly connected to the side away from the display 102, a slot 104 is provided inside the socket 103, a measuring head 105 is plugged into the slot 104, a connecting line 106 is fixedly connected to the top of the measuring head 105, a groove 107 is provided at the bottom of the tester body 101, a slide bar 108 is fixedly connected to the upper surface of the groove 107, a placement plate 109 is provided on the top of the slide bar 108, a slide groove 110 is provided on the lower surface of the placement plate 109, and a handle 111 is provided at the left end of the placement plate 109.

[0031] There are two sockets 103 , two measuring heads 105 and two connecting wires 106 , and the groove 107 extends to the outer wall of the tester body 101 .

[0032] There are two slide bars 108 and they are symmetrically distributed on the left and right sides. The size of the placement plate 109 is equal to that of the groove 107. The slide groove 110 matches the size of the slide bar 108. The handle 111 is set as a ring structure. Holding the handle 111, the slide groove 110 on the lower surface of the placement plate 109 slides along with the slide bar 108, so that the placement plate 109 is pulled out. The motor body is placed on the plate 109, and then the measuring head 105 is connected to the motor body for measurement. The measured speed data is displayed on the display 102, so that the measurement is completed. Improve the convenience of the overall measurement.

[0033] The heat dissipation structure 2 includes a heat dissipation box 201 . A rotating shaft 202 is fixedly connected to the interior of the heat dissipation box 201 . A fan blade 203 is fixedly connected to the outer wall of the rotating shaft 202 . A vent 204 is provided at the bottom of the heat dissipation box 201 .

[0034] The heat sink 201 is disposed at the bottom of the groove 107. During the measurement process, the fan blades 203 rotate to keep the tester body 101 ventilated and cooled with the outside through the vents 204 to prevent high temperatures from causing abnormal operation and errors in the measurement results.

[0035] The mobile structure 3 includes a fixed rod 301 , the outer wall of the fixed rod 301 is sleeved with a sleeve 302 , one side of the sleeve 302 is fixedly connected to a support rod 303 , and the bottom of the support rod 303 is fixedly connected to a moving wheel 304 .

[0036] There are two fixed rods 301 and they are symmetrically distributed on the outer wall of the tester body 101, and the support rod 303 is set to a U-shaped structure. The fixed rod 301 is connected to the sleeve 302 so that the tester body 101 is fixed on the support rod 303. The support rod 303 is pushed by the moving wheel 304 so that the entire device can be moved to a measurement position at will, thereby improving the accuracy of the measurement. At the same time, the cooperation between the fixed rod 301 and the sleeve 302 makes the tester body 101 set to a detachable structure, which is convenient for the maintenance of the tester body 101.

[0037] The implementation principle of a brushless motor speed tester in the embodiment of the present application is: holding the handle 111, the slide groove 110 on the lower surface of the placement plate 109 slides with the slide bar 108, so that the placement plate 109 is pulled out. The motor body is placed on the plate 109, and then the measuring head 105 is connected to the motor body for measurement. The measured speed data is displayed on the display 102, so that the measurement is completed. Improve the convenience of the overall measurement. During the measurement process, the fan blade 203 rotates to keep the tester body 101 ventilated and heat-dissipated with the outside world through the vent 204 to prevent the temperature from being high, causing abnormal operation and errors in the measurement results. The fixed rod 301 is connected to the sleeve 302 so that the tester body 101 is fixed on the support rod 303, and the support rod 303 is pushed by the moving wheel 304, so that the overall device can be moved to the measurement position at will, thereby improving the accuracy of the measurement. At the same time, the cooperation of the fixed rod 301 and the sleeve 302 makes the tester body 101 set to a detachable structure, which is convenient for the maintenance of the tester body 101.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A brushless motor speed tester, characterized in that: It comprises a test structure (1), a heat dissipation structure (2) and a moving structure (3), wherein the heat dissipation structure (2) is located on the lower surface of the test structure (1), and the moving structure (3) is located at the bottom of the test structure (1); The test structure (1) comprises a tester body (101), a display (102) is arranged on the upper surface of the tester body (101), a socket (103) is fixedly connected to the side away from the display (102), a slot (104) is provided inside the socket (103), a measuring head (105) is plugged into the slot (104), a connecting line (106) is fixedly connected to the top of the measuring head (105), a groove (107) is provided at the bottom of the tester body (101), a slide bar (108) is fixedly connected to the upper surface of the groove (107), a placement plate (109) is provided on the top of the slide bar (108), a slide groove (110) is provided on the lower surface of the placement plate (109), and a handle (111) is provided at the left end of the placement plate (109).

2. A brushless motor speed tester as claimed in claim 1, characterized in that: The socket (103), the measuring head (105) and the connecting line (106) are each provided with two in number, and the groove (107) extends to the outer wall of the tester body (101).

3. A brushless motor speed tester as claimed in claim 1, characterized in that: The number of the slide bars (108) is two and they are symmetrically distributed on the left and right sides. The size of the placement plate (109) is equal to the size of the groove (107). The size of the slide groove (110) matches the size of the slide bar (108). The handle (111) is configured as a ring structure.

4. A brushless motor speed tester as claimed in claim 1, characterized in that: The heat dissipation structure (2) comprises a heat dissipation box (201), the interior of the heat dissipation box (201) is fixedly connected to a rotating shaft (202), the outer wall of the rotating shaft (202) is fixedly connected to a fan blade (203), and a ventilation hole (204) is provided at the bottom of the heat dissipation box (201).

5. A brushless motor speed tester as claimed in claim 4, characterized in that: The heat dissipation box (201) is arranged at the bottom of the groove (107).

6. A brushless motor speed tester as claimed in claim 1, characterized in that: The mobile structure (3) comprises a fixed rod (301), the outer wall of the fixed rod (301) is sleeved with a sleeve (302), one side of the sleeve (302) is fixedly connected to a support rod (303), and the bottom of the support rod (303) is fixedly connected to a moving wheel (304).

7. A brushless motor speed tester as claimed in claim 6, characterized in that: The fixing rods (301) are provided in two numbers and are symmetrically distributed on the outer wall of the tester body (101), and the supporting rods (303) are provided in a U-shaped structure.

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