KR20050103741A - Aspiration motor having single print circuit board - Google Patents

Abstract

The present invention includes a temperature sensor circuit, a humidity sensor circuit and a motor driving circuit and elements in a single printed circuit board and at the same time extend the magnetic force of the magnet through the impeller, thus simplifying the work process during the assembly of the motor. It is possible to maximize the work efficiency by being able to assemble quickly and to improve the reliability of the product by fundamentally solving the problem of disconnection which occurs when using multiple printed circuit boards by using a single printed circuit board. An assortment motor having a single printed circuit board.

The present invention, in the assured motor, is rotatably coupled to the stator inside the housing to expand the magnetic force of the plurality of magnets as it is arranged to correspond to the upper side of the plurality of magnets alternately arranged different poles on the lower side A printed circuit board having an impeller, a horizontally disposed upper side of the impeller, a circuit part for a temperature sensor, a circuit part for a humidity sensor, and a circuit part for driving a motor, and a pole of magnetic force generated from the rotating impeller. It characterized in that it comprises a Hall element set in a position corresponding to the upper end of the impeller to the printed circuit board.

Description

Aspiration Motor Having Single Print Circuit Board

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an earthquake motor having a single printed circuit board, in particular a temperature sensor circuit, a humidity sensor circuit, and a motor driving circuit and elements in a single printed circuit board and at the same time arranged on the printed circuit board. By expanding the magnetic force of the magnet through the impeller to detect the magnetic pole of the magnet, the assembly process of the motor can be simplified and quick assembly to maximize the work efficiency as well as the single printed circuit board. The present invention relates to an earthquake motor having a single printed circuit board which can improve the reliability of a product by fundamentally solving the problem of disconnection occurring in a connecting portion when using a plurality of conventional printed circuit boards.

In order to measure the temperature inside the car for the purpose of air-conditioning of the car, an inspiration motor (Aspiration Motor) is used to inhale the air in the room. Accordingly, a temperature sensor and a humidity sensor are installed inside the housing of the motor so that the air conditioner can be operated to control a comfortable indoor atmosphere.

As described above, in the conventional earth motor having a temperature and humidity sensor, when the power is supplied to the stator coil 11 as shown in FIGS. 2A and 2B, the magnet 15 constituting the rotor is fired. The impeller 17 integrally formed also has a central portion supported by the shaft 12 by the sleeve 12 to rotate. As a result, air sucked from the upper air inlet 3 of the housing 1 is discharged to the air outlet 5 formed on the side of the housing 1 as shown in FIG. 1.

The stator coil 11 is fixed to the support bracket 10 and the support bracket 10 is fixed to the housing 1 with the back yoke 13 mounted thereon to form a magnetic circuit on its back, and to the stator coil. A control printed circuit board (PCB) 18 for supplying a driving signal for the fixed circuit board 18 is fixed to the bottom surface of the support bracket 10. In Figs. 2A and 2B, reference numeral 10a denotes a sleeve supporting boss, and 10b denotes a stopper for preventing the impeller from rising.

As for the above-mentioned earthing motor, the brushless DC motor which has high torque and good control is used, and the structure employs the disk-type brushless DC motor of the axial gap structure which has a space | gap in an axial direction for thinning.

In addition, the brushless DC motor detects the N pole and the S pole magnetic poles of the magnet rotor and generates a position detection Hall element 19 for generating a switching signal of the driving current for the stator coil 11. It is provided in the control PCB 18, and is arrange | positioned especially in the bottom face of the magnet 15 and the stator coil 11. As shown in FIG.

On the other hand, if only the temperature sensor is added to such a structure, it is possible to use the lead wire connected to the motor drive control PCB 18, but if the humidity sensor is added together, the output value of the humidity sensor can be converted into frequency. Additional circuitry was added, requiring an independent PCB.

Accordingly, in the asperation motor having a temperature sensor and a humidity sensor together, the temperature / humidity sensor control PCB 20a is vertically disposed with respect to the motor drive control PCB 18 as shown in FIG. 2A or as shown in FIG. 2B. The PCB 20b for temperature / humidity sensor control is arranged in parallel with the motor drive control PCB 18. The two types of aspiration motors are used to measure the temperature and humidity of the vehicle to accurately measure indoor temperature and humidity. All of the sensors 21 are disposed at the center of the air inlet 3 of the housing, and the predetermined temperature of the temperature / humidity sensor control PCBs 20a and 20b so that the humidity sensor 22 is also arranged as close as possible to the air inlet 3. Attached to the location.

As described above, in the case of the assortment motor consisting of two types, the temperature and humidity signals of the vehicle interior detected by the temperature and humidity sensors 21 and 22 are passed through the temperature / humidity sensor control PCBs 20a and 20b. PCBs 20a and 20b for controlling the temperature / humidity sensor through a pin terminal 25 or a flexible PCB 27 to transfer to an external connector 23 connected to the motor driving control PCB 18. The motor drive control PCB 18 is interconnected.

 By the way, such a conventional earthing motor employs a temperature / humidity sensor control PCB (20a, 20b) in addition to the motor drive control PCB (18), when the vehicle is driving off-road for a long time, the PCB for temperature / humidity sensor control Mechanical defects occur in the portion connecting between the 20a, 20b and the motor drive control PCB 18. That is, there is a problem that the reliability of the product is lowered due to cold soldering of the pin terminal 25 or disconnection of the flexible PCB 27.

In addition, since the temperature / humidity sensor control PCBs 20a and 20b are adopted, assembly work must be performed using the pin terminal 25 or the flexible PCB 27 for connection with the motor drive control PCB 18. The assembly process is complicated, and the volume of the motor becomes large, and thus there is a problem that an obstacle is realized in implementing an ultra-thin motor.

Accordingly, an object of the present invention to solve the above problems is to include a temperature sensor circuit, a humidity sensor circuit and a motor driving circuit and elements in a single printed circuit board, and at the same time the Hall element disposed on the printed circuit board As the magnetic force of the magnet is extended through the impeller to detect the stimulus, the assembling motor has a single printed circuit board which simplifies the work fixing during the assembly of the motor and enables the quick assembly to maximize the work efficiency. To provide.

In addition, another object of the present invention is to have a single printed circuit board that can improve the reliability of the product by fundamentally solving the problem of disconnection occurring in the connecting portion when using a plurality of conventional printed circuit board by employing a single printed circuit board. To provide an earthing motor.

In order to achieve the above object, the present invention provides an earthquake motor in which a temperature sensor and a humidity sensor are disposed inside the air inlet of the housing, and a rotor and a stator having a plurality of magnets coupled to one side of the housing at predetermined intervals. Impeller for rotatably coupled to the stator inside the housing to correspond to the upper side of the plurality of magnets alternately arranged with different poles on the lower side, and an impeller for expanding the magnetic force of the plurality of magnets, and is disposed horizontally above the impeller A printed circuit board having a temperature sensor circuit unit, a humidity sensor circuit unit and a motor driving circuit unit together with a position corresponding to an upper end of the impeller on the printed circuit board so as to detect a pole of magnetic force generated from the rotating impeller. A single printed circuit board comprising a hall element set to It provides ground pepper illustration motor.

In this case, the impeller is preferably made of a plastic magnet magnetized in different poles in the upper and lower ends so that the Hall element can detect the magnetic pole of the rotating magnet.

According to another aspect of the present invention, in the assured motor in which a temperature sensor and a humidity sensor are disposed inside the air inlet of the housing, and a rotor and a stator composed of a plurality of magnets are coupled to one side of the housing at predetermined intervals, in the housing. The impeller is rotatably coupled to the stator inwardly and the magnets are disposed on the lower side, and are vertically disposed at predetermined intervals on the side of the impeller, together with a circuit part for temperature sensor, a circuit part for humidity sensor, and a circuit part for driving the motor. A printed circuit board comprising: an upper having a single printed circuit board, wherein the printed circuit board includes hall elements set at positions corresponding to the same level as the magnet to detect magnetic poles of the leakage magnetic flux generated from the rotating magnet. To provide the motor.

Therefore, in the present invention described above, it is possible to smoothly perform the Hall element operation disposed on the control PCB while maintaining the position of the temperature sensor and the humidity sensor around the air inlet for accurate detection of temperature and humidity. By using control PCB, it is possible to realize the ultra-thin motor by greatly reducing the volume of the motor. Also, since it does not adopt a separate connecting part for connecting a plurality of PCBs, the error caused by this is fundamentally eliminated, thereby greatly improving the reliability of the product. You can.

(Example)

Referring to the accompanying drawings, an earth motor having a single printed circuit board according to the present invention in detail as follows.

3 is a schematic cross-sectional view showing an earthing motor having a single printed circuit board according to the first embodiment of the present invention, Figures 4a and 4b has a single printed circuit board according to the first embodiment of the present invention It is a top view which shows the magnet and the impeller of an earthing motor, respectively.

First, the aeration motor having a single printed circuit board according to the present invention is provided with a support bracket 31 coupled to the housing 30 to serve as a stator, as shown in Figure 3, in this case the support bracket 31 Unlike the conventional earth motor, since there is no separate motor drive control PCB for driving the motor under the stator coil 33, the volume can be reduced by the space.

On the other hand, the support bracket 31 forming the stator together with the back yoke 33 and the stator coil 34 has a supporter 32 supporting the control PCB 35 in the horizontal direction. The supporter 32 includes a control PCB 35 and an upper end of the impeller 41 so that the hall element 37 fixed to the control PCB 35 can detect a stimulus generated from the rotating impeller 41. It is preferable to support at a height high enough to maintain a predetermined interval.

In addition, the control PCB 35 includes both a temperature sensor / humidity sensor control circuit part and a motor driving control circuit part, and unlike the related art, it is possible to control the temperature / humidity sensing motor driving through a single PCB. Thinning can be realized.

Fig. 5 is a schematic side view showing the magnetizing direction of an impeller of an earthing motor having a single printed circuit board according to the first embodiment of the present invention.

On the other hand, the impeller 41 constituting the rotor together with the magnet 40 magnetized as shown in Figure 4a so that the Hall element 37 can detect the magnetic pole of the magnet 40 disposed below the impeller 41 Magnet 40 as shown in Fig. 5 as the upper and lower ends of the impeller 41 alternately magnetized to the N pole and the S pole in response to the magnetic pole of the magnet 40 disposed at the lower end of the impeller 41 as shown in 4b. It is made of a plastic magnet to extend the magnetic force of the Hall element 37 to the position.

In the figure, reference numeral 38 is a rotating shaft, 39 is a connector for connecting the stator coil 34 and the PCB 35 sleeve, 43 is a stopper for preventing the rise of the impeller.

Accordingly, the Hall element 37 disposed on the control PCB 35 may detect a change in the magnetic pole generated from the magnet 40 when the impeller 41 rotates through the impeller 41 having the end magnetized therein. N and S pole stimuli of the magnet rotor can be detected to generate a switching signal of the drive current for the stator coil 34.

Accordingly, the present invention arranges the temperature sensor 51 and the humidity sensor 52 around the air inlet 30a in order to measure the accurate temperature and humidity of the vehicle interior, while simultaneously using the temperature and humidity sensor in the conventional earth motor. Unlike a separate dedicated PCB for the purpose, a single control PCB (35) includes a circuit unit for the temperature sensor and the circuit for the humidity sensor together, it is possible to implement an ultra-thin motor by reducing the volume of the overall aeration motor.

In addition, since it is made of a single PCB, it is necessary to purchase connecting parts separately in order to connect a plurality of PCBs as in the prior art, thereby preventing the unit cost of the resulting product from rising and eliminating the delay of work due to the addition of the connection work. In addition to improving work efficiency, it is possible to fundamentally solve the problem of disconnection occurring in the connection part, thereby greatly improving the reliability of the product.

FIG. 6 is a schematic cross-sectional view of an assortment motor having a single printed circuit board according to a second embodiment of the present invention, and FIG. 7 is an assortment motor having a single printed circuit board according to a second embodiment of the present invention. It is a schematic side view which shows the magnetization direction of the stator coil.

The second embodiment according to the present invention is similar in overall structure, and in particular, disposing both the circuit part for the temperature / humidity sensor and the motor driving circuit part on the single control PCB 135 is the same as the first embodiment.

However, as shown in FIG. 6, the control PCB 135 is disposed perpendicular to the side of the impeller 141 such that the temperature sensor 151 and the humidity sensor 152 are disposed at the air inlet 130a of the housing 130. .

In this case, a hall element 137 for detecting a magnetic pole of the leakage magnetic flux generated from the magnet 140 rotating as shown in FIG. 7 is disposed below the control PCB 135, in which the hall element 137 is disposed. Is preferably set at a position corresponding to the same level as the magnet 140 in order to accurately detect the magnetic pole of the magnet through the magnetic flux of the leakage magnetic flux.

In addition, in the second embodiment according to the present invention, unlike the first embodiment, a general impeller that is conventionally used may be employed without forming the impeller with a plastic magnet.

As described above, in the second embodiment, as in the first embodiment, the hall element is changed to a position capable of detecting magnetic poles of the magnet, thereby employing only a single PCB without the need for a separate PCB for the circuit part for the temperature / humidity sensor. It is possible to realize a thinner motor and to reduce costs.

In addition, the connection member for connecting a plurality of PCB can be omitted, it is possible to improve the assembly and reliability of the product.

In the present invention described above, it is possible to smoothly perform the operation of the Hall element disposed on the control PCB while maintaining the position of the temperature sensor and the humidity sensor around the air inlet for accurate temperature and humidity detection, and at the same time, By using PCB, it is possible to realize the ultra-thin motor by greatly reducing the volume of the motor. Also, since it does not adopt a separate connecting part for connecting a plurality of PCBs, it is possible to fundamentally eliminate errors caused by this and greatly improve the reliability of the product. There is an advantage to this.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

1 is a schematic diagram showing an earthquake motor with a conventional temperature / humidity sensor;

2A and 2B are schematic cross-sectional views showing an earthquake motor equipped with a conventional temperature / humidity sensor;

3 is a schematic cross-sectional view showing an earthing motor having a single printed circuit board according to the first embodiment of the present invention;

4A and 4B are plan views respectively illustrating a magnet and an impeller of an earth motor having a single printed circuit board according to a first embodiment of the present invention;

5 is a schematic side view showing the magnetizing direction of an impeller of an earthing motor having a single printed circuit board according to the first embodiment of the present invention;

6 is a schematic cross-sectional view showing an earthing motor having a single printed circuit board according to a second embodiment of the present invention;

Fig. 7 is a schematic side view showing the magnetization direction of the stator coil of the earth motor having a single printed circuit board according to the second embodiment of the present invention.

* Description of Signs for Main Parts in Drawings *

30, 130: housing 30a, 130a: air inlet

31: support bracket 32: supporter

33: back yoke 34: stator coil

35, 135: control PCB 37, 137: Hall element

38: rotation shaft 40, 140: magnet

41, 141: impeller 51, 151: temperature sensor

52, 152: humidity sensor

Claims (3)

In an earthquake motor in which a temperature sensor and a humidity sensor are disposed inside the air inlet of the housing, and a rotor and a stator made up of a plurality of magnets are coupled at a predetermined interval on one side of the housing, An impeller that is rotatably coupled to the stator inside the housing so as to correspond to the upper side of the plurality of magnets in which different poles are alternately disposed on the lower side, and an impeller for expanding the magnetic force of the plurality of magnets; A printed circuit board horizontally disposed above the impeller and having a circuit part for a temperature sensor, a circuit part for a humidity sensor, and a circuit part for driving a motor; An assortment motor having a single printed circuit board, characterized in that it comprises a Hall element set in a position corresponding to the upper end of the impeller in the printed circuit board to detect the pole of the magnetic force generated from the rotating impeller. The earthquake motor having a single printed circuit board according to claim 1, wherein the impeller is made of a plastic magnet magnetized by different poles at different upper and lower ends. In an earthquake motor in which a temperature sensor and a humidity sensor are disposed inside the air inlet of the housing, and a rotor and a stator made up of a plurality of magnets are coupled at a predetermined interval on one side of the housing, An impeller rotatably coupled to the stator inside the housing and having the plurality of magnets disposed below; A printed circuit board vertically disposed at a predetermined interval on the side of the impeller and having a circuit part for a temperature sensor, a circuit part for a humidity sensor, and a circuit part for driving a motor; An assortment motor having a single printed circuit board, characterized in that the printed circuit board includes a Hall element set at a position corresponding to the same level as the magnet to detect the magnetic flux of the leakage magnetic flux generated from the rotating magnet.