CN112014715B - EC fan control panel detection device - Google Patents
EC fan control panel detection device Download PDFInfo
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- CN112014715B CN112014715B CN202010725315.8A CN202010725315A CN112014715B CN 112014715 B CN112014715 B CN 112014715B CN 202010725315 A CN202010725315 A CN 202010725315A CN 112014715 B CN112014715 B CN 112014715B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Physics & Mathematics (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a detection device for an EC fan control board, and relates to a detection device for an EC fan. It has solved the problem that EC fan control panel detected among the prior art. The EC fan control board detection device comprises a test instrument, an auxiliary test fan, a power supply, a control board positioning device, a test probe used for contacting with a test point of the control board, and the test probe is electrically connected with the test instrument and the auxiliary test fan. The control panel positioning device comprises a control panel fixing base, a test probe is arranged above the control panel fixing base, and the test probe is controlled by the lifting device to move up and down relative to an electric contact point on the control panel. The invention adopts special fixing equipment to realize the positioning of the fan and the control panel, adopts a mechanical control device to realize the electric contact and separation of the test probe and the control panel, has stable test and convenient operation, and solves the defects of high welding difficulty, easy broken flying wire and high danger of the traditional test scheme.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a detection device of an EC fan.
Background
The EC fan refers to a centrifugal fan adopting a digital brushless direct-current outer rotor motor or a centrifugal fan adopting the EC motor. The EC (Electrical Commutation) motor power supply is a direct current power supply, is internally provided with direct current to alternating current (through six inversion modules), and adopts rotor position feedback, three-phase alternating current, permanent magnet and synchronous motor. (the direct current brushless is only the power quality and the appearance of the motor, but not the essence of the motor, and the EC motor is essentially a three-phase alternating current permanent magnet synchronous motor), and has the characteristics of high intelligence, high energy saving, high efficiency, long service life, small vibration, low noise, continuous uninterrupted operation and the like. Since the performance of such a motor is mainly determined by the electrical control part, the quality of the control circuit is critical to the quality of the blower. The control circuit of the EC blower is arranged on the control board, and for this purpose, the detection of the control board is particularly important before the control board is installed. For example, testing of power supplies, fan start-stops, acceleration and deceleration, fan speed square wave pulse output signals, and the like. The traditional circuit board test utilizes testing instruments such as universal meters, and the like, can measure functions such as circuit board power supply, and is low in efficiency. Or the rotor position detection signal wire is welded to the control board by using a flying lead welding method, and then the motor driving wire on the control board is welded to the fan stator.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an EC fan control board detection device which can conveniently detect a fan control board.
The aim of the invention can be achieved by the following technical scheme: the detection device for the control board of the EC fan comprises a test instrument, an auxiliary test fan and a power supply, and is characterized by further comprising a control board fixing base and a test probe used for being in contact with a test point of the control board, wherein the test probe is electrically connected with the test instrument and the auxiliary test fan.
In some embodiments, a test probe is disposed above the control board mounting base, the test probe being configured to be controlled by a lift device to move up and down relative to an electrical contact point on the control board.
In some embodiments, the auxiliary test fan is fixed in a fan test box on the workbench, the fan fixing mounting plate is fixedly connected with the workbench, an air inlet communicated with the air inlet of the fan is formed in the workbench, a stator base of the auxiliary test fan faces upwards, a control board fixing base is arranged on an upper box plate above the fan test box, a control board locating hole is formed in the upper box plate, the control board locating hole corresponds to the stator base of the auxiliary test fan, and an air inlet hole is formed in a side wall plate of the fan test box.
In some embodiments, the lifting device comprises a fixing frame, a guide tube is arranged on the fixing frame, a toggle clamp pressing rod is in sliding fit in the guide tube, and the test probe is arranged on a pressing plate at the lower end of the pressing rod.
In some embodiments, the device further comprises a control board pre-detection device, wherein the control board pre-detection device comprises an upper guide cylinder which is vertically arranged, control boards are arranged in the upper guide cylinder in an up-down manner, test points of the control boards face downwards, a round partition board is arranged between the control boards at intervals, the partition board is provided with a conical hole corresponding to a middle hole of the control board, an upper port of the conical hole is large, a lower port of the conical hole is small, the lower port of the conical hole is the same as the middle hole of the control board in diameter, and two radial notches corresponding to two radial bayonets on the middle hole of the control board are arranged on the conical hole; the pre-test probe is arranged below the upper guide cylinder, and is arranged on the transverse moving plate and controlled by the telescopic device to move between the lower part of the inner side of the upper guide cylinder and the outer side of the upper guide cylinder; the control board moving device comprises a moving rod, the moving rod is positioned in a hole and a conical hole in the control board, an upper cross rod and a lower cross rod with the same length are arranged at the lower end part of the moving rod, the upper cross rod and the lower cross rod are symmetrical relative to the moving rod, the upper cross rod and the lower cross rod are perpendicular to the moving rod, the upper cross rod is parallel to the lower cross rod, and the length of the lower cross rod is greater than the diameter of the hole in the control board and less than the distance of a radial bayonet; the upper end of the moving rod is controlled by the moving device to move up and down and rotate, and the upper cross rod is positioned in the conical hole when the lower cross rod is positioned below the control plate and is contacted with the control plate.
In some embodiments, the ends of the upper and lower rails are provided with balls.
Compared with the prior art, the detection device for the control panel of the EC fan has the following advantages:
the invention adopts special fixing equipment to realize the positioning of the fan and the control panel, adopts a mechanical control device to realize the electric contact and separation of the test probe and the control panel, has stable test and convenient operation, solves the defects of high welding difficulty, easy broken flying wire and high danger of the traditional test scheme, and improves the anti-interference capability in the pulse signal transmission process.
Drawings
In the drawings (which are not necessarily drawn to scale), like numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.
FIG. 1 is a schematic diagram of a first embodiment;
FIG. 2 is a schematic diagram of a control board of the second embodiment;
fig. 3 is a schematic diagram of the control board of the second embodiment in a test state;
fig. 4 is a schematic view of the control board of the second embodiment being moved to the lower side;
FIG. 5 is a schematic view of the upper cross bar of the second embodiment rotated to the radial notch of the spacer;
FIG. 6 is a schematic view of the bottom rail of the second embodiment moved to the upper baffle tapered hole;
fig. 7 is a schematic diagram of the second embodiment moved back to the upper portion for testing the next control board.
In the figure, a test instrument 1, an auxiliary test fan 2, an impeller 201, a fan air inlet 202, a power supply 3, a control board 4, a test probe 5, an outer rotor 6, an inner motor stator 7, a fan test box 8, an upper box plate 802, a control board positioning hole 8021, an air inlet 803, a workbench 9, a workbench air guide 901, a ventilation opening 902, a lower pressure plate 10, a lower pressure rod 101, a fixing frame 11, a guide pipe 12, a swing rod 13, a handle 131, a sliding sleeve 14, a potentiometer 15 and a control switch 16,
the device comprises an upper guide cylinder 17, a partition plate 18, a conical hole 181, a radial notch 1811, a control plate middle hole 401, a radial bayonet 4011, a pre-test probe 19, a traversing plate 20, a moving rod 21, an upper cross bar 211, a lower cross bar 212, a linear motor 22 and a motor 23.
Detailed Description
The following are specific examples of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these examples, and the following embodiments do not limit the inventions according to the claims. Furthermore, all combinations of features described in the embodiments are not necessarily essential to the inventive solution.
It will be appreciated by those of ordinary skill in the art that all directional references (e.g., above, below, upward, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive of the drawings to aid the reader in understanding, and do not represent (e.g., positional, azimuthal, use, etc.) limitations on the scope of the invention defined by the appended claims. In addition, the term "substantially" may refer to slight imprecision or slight deviation in terms of conditions, amounts, values, or dimensions, some of which are within manufacturing tolerances or tolerances.
Example 1
As shown in FIG. 1, the EC fan control board detection device comprises a test instrument 1, an auxiliary test fan 2 and a power supply 3, wherein the power supply is a direct-current stabilized voltage power supply, and the EC fan control board detection device further comprises a control board positioning device, a test probe 5, which is used for being in contact with a test point of a control board 4, a test probe is electrically connected with the test instrument and the auxiliary test fan, and the test instrument comprises a voltmeter, a power meter and a frequency meter. The impeller 201 of the auxiliary test fan is connected with the outer rotor 6 of the motor, a stator base of the inner stator 7 of the motor is provided with a control board mounting groove, and the control board is placed in the control board mounting groove during test.
The auxiliary test fan is fixed in a fan test box 8 on a workbench 9, the workbench is also of a box structure, a ventilation opening 902 is formed in the side wall of the box so as to be communicated with a fan air inlet, a fan fixing mounting plate is fixedly connected with the workbench 9, a workbench air guide opening 901 communicated with the fan air inlet 202 is formed in the workbench, a stator base of the auxiliary test fan faces upwards, a control board positioning device comprises a control board fixing base, the control board fixing base is arranged on an upper box plate 802 above the fan test box, a control board positioning hole 8021 is formed in the upper box plate, the control board positioning hole corresponds to a control board mounting groove on a stator base of the auxiliary test fan, and an air inlet 803 is formed in a side wall plate of the fan test box.
The test probe is arranged on a lower pressing plate 10 above a control plate fixing base, the lower pressing plate is controlled by a lifting device to move up and down relative to an electric contact point on the control plate, the lifting device comprises a fixing frame 11, a guide tube 12 is arranged on the fixing frame, a lower pressing rod 101 of a toggle clamp is in sliding fit in the guide tube, the toggle clamp comprises a swinging rod 13, one end of the swinging rod is hinged with the fixing frame, a sliding sleeve 14 is in sliding fit on the swinging rod, the sliding sleeve is hinged with the end part of the lower pressing rod, and the other end of the swinging rod is provided with a handle 131.
The automatic control device also comprises a potentiometer 15 and a control switch 16, wherein the potentiometer is used for adjusting the power supply voltage of the power supply, the control switch is used for controlling the on-off of current, and the potentiometer and the control switch are arranged on the upper panel of the workbench. The test instrument and the direct current stabilized power supply are arranged inside the workbench and are connected with the corresponding test probes through the flat cable and the connector. The auxiliary test fan stator three-phase motor line is connected with the test probe through the connector, of course, some control boards are spliced with the three-phase motor line through electrode sockets on the control board fixing base, and the sockets are spliced only when the control boards are placed on the control board fixing base.
When the test probe is used, the control board to be tested is placed on the control board fixing base, the handle is pulled down, the control board to be tested is pressed by the lower pressing plate, and at the moment, the test probe and the control board to be tested point are tested; after confirming that the power supply voltage is correct, turning on a power switch, observing whether the fan runs or not, adjusting a potentiometer knob after confirming that the fan rotates, and observing a frequency table display to confirm the speed regulation function of the control board; and continuously adjusting the potentiometer until the speed regulation voltage is +10VDC, observing the display values of the frequency meter and the power meter when the motor is in a full-speed state, and comparing the display values with the rated rotation speed and the rated power of the motor to confirm the function of the control board.
Example two
As shown in fig. 1 to 7, unlike the above embodiment, the device further comprises a control board pre-detection device for preliminary detection, such as conductivity detection, before the fan of the first embodiment is connected, the control board pre-detection device comprises an upper guide cylinder 17 arranged vertically, a control board 4 is placed in the upper guide cylinder and arranged vertically, test points of the control board face downwards, a circular partition 18 is spaced between the control boards, the partition has a tapered hole 181 corresponding to a hole 401 in the control board, an upper port and a lower port of the tapered hole are large, the lower port of the tapered hole is the same as the diameter of the hole in the control board, two radial notches 1811 corresponding to two radial bayonets 4011 on the hole in the control board are arranged on the tapered hole, and the distance between the two opposite radial notches is equal to the diameter of the upper port of the tapered hole. The pre-test probe 19 is arranged below the upper guide cylinder, is arranged on the transverse moving plate 20 and is controlled by a telescopic device (a linear motor or an air cylinder and the like) to move between the lower part of the inner side of the upper guide cylinder and the outer side of the upper guide cylinder, and can be connected with a universal meter; the control board moving device comprises a moving rod 21, wherein the moving rod is positioned in a hole and a conical hole in the control board, an upper cross rod 211 and a lower cross rod 212 with the same length are arranged at the lower end part of the moving rod, the upper cross rod and the lower cross rod are symmetrical relative to the moving rod, the upper cross rod and the lower cross rod are perpendicular to the moving rod, the upper cross rod is parallel to the lower cross rod, and the length of the lower cross rod is larger than the diameter of the hole in the control board and smaller than the distance of a radial bayonet; the upper end of the moving rod is controlled to move up and down by a linear motor 22 or an air cylinder and the like, the motor 23 is used for controlling the rotation, and the lower cross rod is positioned below the control plate and is ensured to be positioned in the conical hole when being contacted with the control plate. The ends of the upper cross bar and the lower cross bar are provided with balls so as to reduce friction.
During testing, the moving rod is controlled to descend, the test points of the control boards are in contact with the pre-test probes, the test is completed, the transverse moving plate is separated to two sides, the moving rod descends, the control boards below the moving rod are placed on the partition boards below the moving rod, then the moving rod rotates, the upper cross rod and the lower cross rod are in vertical correspondence with the radial notch and the radial notch, then the moving rod ascends, the upper cross rod and the lower cross rod are respectively located in conical holes of the upper control board and the lower control board above the moving rod, then the moving rod rotates, the upper cross rod and the lower cross rod are not in vertical correspondence with the radial notch and the radial notch, then the moving rod is lifted upwards, the control boards above the lower cross rod and the partition boards move back into the upper guide cylinder along with the moving rod, then the pre-test probes move to the lower control boards, the moving rod descends to enable the test points to be in contact with the pre-test probes, after the test points are detected, the control boards are moved to the lower side, the control boards are reciprocally moved to the control boards, all the control boards on the moving rod are detected, the next stack and the partition boards are sequentially worn on the moving rod after the detection is completed, and all the control boards are detected.
Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention. The order of execution of the operations, steps, and the like in the apparatuses and methods shown in the specification and the drawings may be any order as long as the order is not particularly limited, and the output of the preceding process is not used in the following process. The use of the description of "first", "next", etc. for convenience of description does not imply that the operations must be performed in such order.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The detection device for the control board of the EC fan comprises a test instrument, an auxiliary test fan and a power supply, and is characterized by further comprising a control board fixing base and a test probe used for being in contact with a test point of the control board, wherein the test probe is electrically connected with the test instrument and the auxiliary test fan;
the control board pre-detection device comprises an upper guide cylinder which is vertically arranged, control boards are arranged in the upper guide cylinder in an up-down arrangement mode, test points of the control boards face downwards, a round partition board is arranged between the control boards at intervals, the partition board is provided with a conical hole corresponding to a middle hole of the control board, the upper port of the conical hole is large, the lower port of the conical hole is small, the lower port of the conical hole is the same as the diameter of the middle hole of the control board, and two radial notches corresponding to two radial bayonets on the middle hole of the control board are arranged on the conical hole; the pre-test probe is arranged below the upper guide cylinder, and is arranged on the transverse moving plate and controlled by the telescopic device to move between the lower part of the inner side of the upper guide cylinder and the outer side of the upper guide cylinder;
the control board moving device comprises a moving rod, the moving rod is positioned in a hole and a conical hole in the control board, an upper cross rod and a lower cross rod with the same length are arranged at the lower end part of the moving rod, the upper cross rod and the lower cross rod are symmetrical relative to the moving rod, the upper cross rod and the lower cross rod are perpendicular to the moving rod, the upper cross rod is parallel to the lower cross rod, and the length of the lower cross rod is greater than the diameter of the hole in the control board and less than the distance of a radial bayonet; the upper end of the moving rod is controlled by the moving device to move up and down and rotate, and the upper cross rod is positioned in the conical hole when the lower cross rod is positioned below the control plate and is contacted with the control plate.
2. The EC fan control board detection device of claim 1, wherein a test probe is disposed above said control board mounting base, said test probe being configured to be controlled by a lifting device to move up and down relative to an electrical contact point on the control board.
3. The EC fan control board detection device of claim 1, further comprising a workbench, the auxiliary test fan is fixed in a fan test box on the workbench, the fan fixing mounting plate is fixedly connected with the workbench, an air inlet communicated with an air inlet of the fan is formed in the workbench, a stator base of the auxiliary test fan faces upwards, the control board fixing base is arranged on an upper box board above the fan test box, a control board positioning hole is formed in the upper box board, the control board positioning hole corresponds to the stator base of the auxiliary test fan, and an air inlet hole is formed in a side wall board of the fan test box.
4. The EC fan control board detection device of claim 2, wherein said lifting device comprises a fixing frame, a guide tube is provided on the fixing frame, a toggle clamp pressing bar is slidably fitted in the guide tube, and a test probe is provided on a pressing plate at a lower end of the pressing bar.
5. The EC fan control panel detection device of claim 1, wherein the ends of the upper cross bar and the lower cross bar are provided with balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725315.8A CN112014715B (en) | 2020-07-24 | 2020-07-24 | EC fan control panel detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725315.8A CN112014715B (en) | 2020-07-24 | 2020-07-24 | EC fan control panel detection device |
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| CN112014715A CN112014715A (en) | 2020-12-01 |
| CN112014715B true CN112014715B (en) | 2023-06-27 |
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