CN112014715A - EC fan control panel detection device - Google Patents
EC fan control panel detection device Download PDFInfo
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- CN112014715A CN112014715A CN202010725315.8A CN202010725315A CN112014715A CN 112014715 A CN112014715 A CN 112014715A CN 202010725315 A CN202010725315 A CN 202010725315A CN 112014715 A CN112014715 A CN 112014715A
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- control panel
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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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention provides a detection device for an EC fan control panel, 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 detection device for the EC fan control panel comprises a test instrument, an auxiliary test fan and a power supply, and further comprises a control panel positioning device and a test probe used for being in contact with a test point of the control panel, wherein 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 arranged on the control panel and is controlled by a lifting device to move up and down relative to an electric contact point on the control panel. The invention adopts special fixing equipment to position the fan and the control panel, adopts the 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 line 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 is a centrifugal fan adopting a digital brushless direct current outer rotor motor or a centrifugal fan adopting an EC motor. The EC (electrical Commutation) motor power supply is a direct current power supply, a built-in direct current-to-alternating current (through six inversion modules), a rotor position feedback, a three-phase alternating current, a permanent magnet and a synchronous motor are adopted. (the DC brushless is only the representation of the power quality and the motor, but not the essence of the motor, the EC motor is essentially a three-phase AC permanent magnet synchronous motor), has the characteristics of high intelligence, high energy saving, high efficiency, long service life, small vibration, low noise, continuous uninterrupted operation and the like. Because the performance of the motor is mainly determined by the electric control part, the quality of a control circuit of the motor is important to the quality of the fan. The control circuit of the EC fan is provided on the control board, and for this reason, the detection of the control board is particularly important before the control board is installed. For example, tests of power supply, fan start-stop and acceleration and deceleration, fan rotating speed square wave pulse output signals and the like are carried out. The traditional circuit board test mostly utilizes test instruments such as a universal meter and the like, can measure functions such as a circuit board power supply and the like, and is low in efficiency. Or the rotor position detection signal line is welded to the control panel by using a flying wire welding method, and then the motor driving line on the control panel is welded to the fan stator.
Disclosure of Invention
The invention aims to provide a detection device for an EC fan control panel, aiming at the problems in the prior art.
The purpose of the invention can be realized 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 the 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 positioned above the control board mounting base, the test probe being configured to be moved up and down relative to electrical contacts on the control board by a lifting device.
In some embodiments, the auxiliary testing fan is fixed in a fan testing box on the workbench, the fan fixing and 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 testing fan faces upwards, a control panel fixing base is arranged on an upper box body plate above the fan testing box, a control panel positioning hole is formed in the upper box body plate and corresponds to the stator base of the auxiliary testing fan, and an air inlet hole is formed in a side wall plate of the fan testing box.
In some embodiments, the lifting device comprises a fixed frame, a guide tube is arranged on the fixed frame, a lower pressing rod of the toggle clamp is slidably matched in the guide tube, and the test probe is arranged on a lower pressing plate at the lower end of the lower pressing rod.
In some embodiments, the control panel pre-detection device comprises an upper guide cylinder which is vertically arranged, the control panels are placed in the upper guide cylinder in an up-and-down arrangement mode, test points of the control panels face downwards, a circular partition plate is arranged between the control panels at intervals, the partition plate is provided with a conical hole corresponding to a middle hole of the control panel, the upper end opening of the conical hole is large, the lower end opening of the conical hole is small, the diameter of the lower end opening of the conical hole is the same as that of the middle hole of the control panel, and two radial notches corresponding to two radial bayonets on the middle hole of the control panel; the pretest probe is arranged below the upper guide cylinder and is 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 on the transverse moving plate; the control panel moving device comprises a moving rod, the moving rod is positioned in a control panel middle hole and a conical hole, an upper cross rod and a lower cross rod which are equal in length are arranged at the lower end 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 control panel middle hole and smaller than the distance of a radial bayonet; the upper end of the movable rod is controlled by the moving device to move up and down and rotate, and the upper cross rod is located in the conical hole when the lower cross rod is located below the control plate and is in contact with the control plate.
In some embodiments, the ends of the upper and lower crossbars are provided with balls.
Compared with the prior art, this EC fan control panel detection device has following advantage:
the invention adopts special fixed equipment to position the fan and the control panel, adopts the 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 reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.
FIG. 1 is a schematic diagram of a first embodiment;
FIG. 2 is a schematic view of a control board according to the second embodiment;
FIG. 3 is a schematic view of the control board of the second embodiment in a test state;
FIG. 4 is a schematic view of the second embodiment in which the control board is moved to the lower side;
FIG. 5 is a schematic view of the upper cross bar of the second embodiment rotated to a radial notch of the partition plate;
FIG. 6 is a schematic view of the lower rail of the second embodiment moving into the tapered hole of the upper baffle plate;
fig. 7 is a schematic diagram of the second embodiment of moving back to the upper part to test 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 panel 4, a test probe 5, an outer rotor 6, a motor inner stator 7, a fan test box 8, an upper box body plate 802, a control panel positioning hole 8021, an air inlet 803, a workbench 9, a workbench air guide opening 901, a ventilation opening 902, a lower pressing plate 10, a lower pressing rod 101, a fixed 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 tapered hole 181, a radial notch 1811, a control plate middle hole 401, a radial bayonet 4011, a pretest probe 19, a traverse plate 20, a moving rod 21, an upper cross rod 211, a lower cross rod 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 are further described with reference to the drawings, but the present invention is not limited to these examples, and the following embodiments do not limit the invention according to the claims. Moreover, all combinations of features described in the embodiments are not necessarily essential to the solution of the invention.
It will be understood 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 illustratively used in the figures to aid the reader's understanding and do not imply (e.g., position, orientation, or use, etc.) a limitation on the scope of the invention, which is defined by the claims appended hereto. Additionally, the term "substantially" may refer to slight imprecision or deviation in conditions, amounts, values, or dimensions, etc., some of which may be within manufacturing or tolerance limits.
Example one
As shown in fig. 1, the EC blower control panel detection device comprises a test instrument 1, an auxiliary test blower 2, a power supply 3, a control panel positioning device, a test probe 5 and a test instrument frequency meter, wherein the test probe 5 is used for being in contact with a test point of a control panel 4, and is electrically connected with the test instrument and the auxiliary test blower. The impeller 201 of the auxiliary test fan is connected with the outer rotor 6 of the motor, a control board mounting groove is formed in the stator base of the motor inner stator 7, and the control board is placed in the control board mounting groove during testing.
The auxiliary testing fan is fixed in a fan testing box 8 on the workbench 9, the workbench is also of a box body structure, the side wall of the box body is provided with a ventilation opening 902 so as to be communicated with a fan air inlet, a fan fixing and mounting plate is fixedly connected with the workbench 9, the workbench is provided with a workbench air guide opening 901 communicated with a fan air inlet 202, a stator base of the auxiliary testing fan faces upwards, the control panel positioning device comprises a control panel fixing base, the control panel fixing base is arranged on an upper box body plate 802 above the fan testing box, the upper box body plate is provided with a control panel positioning hole 8021, the control panel positioning hole corresponds to a control panel mounting groove on the stator base of the auxiliary testing fan, and a side wall plate of the fan testing box is provided with an air inlet hole 803.
The test probe sets up on the lower pressure plate 10 of control panel unable adjustment base top, and the lower pressure plate is by the electric contact point up-and-down motion on the relative control panel of elevating gear control, elevating gear includes mount 11, is provided with stand pipe 12 on the mount, and the gliding cooperation of depression bar 101 is in the stand pipe under the toggle anchor clamps, and the toggle anchor clamps include pendulum rod 13, and pendulum rod one end and mount hinged joint, gliding cooperation has sliding sleeve 14 on the pendulum rod, sliding sleeve and depression bar tip hinged joint, the pendulum rod other end has handle 131.
The electric power machine further comprises a potentiometer 15 and a control switch 16, wherein the potentiometer adjusts the power supply voltage of a 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 voltage power supply are arranged inside the workbench and are connected with corresponding test probes through the flat cables and the connectors. The auxiliary test fan stator three-phase motor line is connected with the test probe through the connector, certainly, some control panels and three-phase motor lines are pegged graft through the electrode socket on the control panel unable adjustment base, so as long as put the control panel on the control panel unable adjustment base the time for the socket is pegged graft can.
When the device is used, the control panel to be tested is placed on the control panel fixing base, the handle is pulled down, the control panel to be tested is pressed by the lower pressing plate, and the test probe and the point to be tested of the control panel are tested at the moment; after confirming that the power supply voltage is correct, turning on a power switch, observing whether the fan runs or not, after confirming that the fan rotates, adjusting a knob of a potentiometer, and observing the display of a frequency table to confirm the speed regulation function of the control panel; and continuously adjusting the potentiometer until the speed regulation voltage is +10VDC, wherein the motor is in a full-speed state, and observing the display numerical values of the frequency meter and the power meter, and comparing the display numerical values with the rated rotating speed and the power of the motor to confirm the function of the control panel.
Example two
As shown in fig. 1 to 7, different from the above embodiment, the fan control device further includes a control panel pre-detection device for performing a preliminary detection, such as a continuity detection, before the fan control device is connected to the fan of the first embodiment, the control panel pre-detection device includes an upper guide cylinder 17 vertically disposed, control panels 4 are placed in the upper guide cylinder and arranged up and down, test points of the control panels face down, a circular partition 18 is disposed between the control panels at intervals, the partition has a tapered hole 181 corresponding to a control panel middle hole 401, an upper port of the tapered hole is large, a lower port of the tapered hole is small, a diameter of the tapered hole is the same as that of the control panel middle hole, two radial notches 1811 corresponding to two radial bayonets 4011 in the control panel middle hole are disposed in the tapered hole, and a distance between the two opposite radial notches is equal. The pretest probe 19 is positioned below the upper guide cylinder, the pretest probe is arranged on the traverse plate 20 and is controlled by a telescopic device (a linear motor, 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 the pretest probe can be connected with a universal meter; the control panel moving device comprises a moving rod 21, the moving rod is positioned in a control panel middle hole and a conical hole, an upper cross rod 211 and a lower cross rod 212 which are equal in length are arranged at the lower end 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 control panel middle hole and smaller than the distance of a radial bayonet; the upper end of the movable rod is controlled by a linear motor 22 or an air cylinder and the like to move up and down, the motor 23 is used for controlling rotation, and the lower cross rod is positioned below the control plate and is ensured to be positioned in the conical hole when being in contact with the control plate. The ends of the upper cross bar and the lower cross bar are provided with balls to reduce friction.
During testing, the moving rod is controlled to descend to enable the control panel testing point to be in contact with the pretesting probe, after the testing is finished, the transverse moving plate is separated towards two sides, the moving rod descends to enable the control panel below the moving rod to be placed on the partition plate below the moving rod, then the moving rod rotates to enable the upper cross rod and the lower cross rod to vertically correspond to the radial notch and the radial bayonet, then the moving rod ascends to enable the upper cross rod and the lower cross rod to be respectively positioned in the conical holes of the upper partition plate and the lower partition plate above the control panel, then the moving rod rotates to enable the upper cross rod and the lower cross rod not to vertically correspond to the radial notch and the radial bayonet, then the moving rod is lifted upwards, the lower cross rod moves the control panel and the partition plate above the moving rod upwards along with the moving rod back to the upper guide cylinder, then the pretesting probe moves to the, after detecting, move it to the below again, so reciprocal control panel realizes detecting and removing all control panels on the carriage release lever, and the back is detected completely, can wear the carriage release lever with the control panel of next pile and baffle on, detects in proper order again.
Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by 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 drawings may be implemented in any order as long as the output of the preceding process is not used in the subsequent process, unless otherwise specified. The descriptions using "first", "next", etc. for convenience of description do not imply that they must be performed in this order.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
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 the test point of the control board, wherein the test probe is electrically connected with the test instrument and the auxiliary test fan.
2. The EC fan control panel testing apparatus of claim 1, wherein a test probe is disposed above the control panel mounting base, the test probe being configured to be moved up and down relative to an electrical contact on the control panel by a lifting device.
3. The EC fan control panel detection device of claim 1, further comprising a workbench, wherein the auxiliary test fan is fixed in a fan test box on the workbench, the fan fixing and 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 panel fixing base is arranged on an upper box body plate above the fan test box, the upper box body plate is provided with a control panel positioning hole, the control panel positioning 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.
4. The EC fan control panel detection apparatus of claim 2, wherein the lifting device comprises a fixed frame, a guide tube is disposed on the fixed frame, a lower pressing rod of the toggle clamp is slidably fitted in the guide tube, and the test probe is disposed on a lower pressing plate at a lower end of the lower pressing rod.
5. The EC fan control panel detection device of claim 1, further comprising a control panel pre-detection device, wherein the control panel pre-detection device comprises an upper guide cylinder arranged vertically, the control panels are placed in the upper guide cylinder in an up-down arrangement, test points of the control panels face downwards, a circular partition plate is arranged between the control panels at intervals, the partition plate is provided with a conical hole corresponding to a middle hole of the control panel, the upper end opening of the conical hole is large, the lower end opening of the conical hole is small, the diameter of the conical hole is the same as that of the middle hole of the control panel, and two radial notches corresponding to two radial bayonets on the middle hole of the control panel are arranged; the pretest probe is arranged below the upper guide cylinder and is 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 on the transverse moving plate; the control panel moving device comprises a moving rod, the moving rod is positioned in a control panel middle hole and a conical hole, an upper cross rod and a lower cross rod which are equal in length are arranged at the lower end 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 control panel middle hole and smaller than the distance of a radial bayonet; the upper end of the movable rod is controlled by the moving device to move up and down and rotate, and the upper cross rod is located in the conical hole when the lower cross rod is located below the control plate and is in contact with the control plate.
6. The EC fan control panel detection apparatus of claim 5, wherein the ends of the upper cross bar and the lower cross bar are provided with balls.
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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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| CN202010725315.8A CN112014715B (en) | 2020-07-24 | 2020-07-24 | EC fan control panel detection device |
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| CN112014715B CN112014715B (en) | 2023-06-27 |
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