KR101894580B1 - Fluid circulating unit, mobile terminal having it and control method therof - Google Patents

Abstract

A fluid circulating part, a mobile terminal including the fluid circulating part, and a control method thereof are disclosed. A fluid circulation unit, a mobile terminal including the fluid circulation unit, and a control method thereof according to the present invention include a case forming an appearance; At least one electronic element located inside the case; And a fluid circulating unit having a piezo pump for cooling the heat generated in the electronic device by flowing the fluid. According to the present invention, the temperature of the electronic device can be effectively controlled by including the fluid circulating unit provided with the piezo pump for cooling the heat generated by the electronic device by flowing the fluid.

Description

TECHNICAL FIELD [0001] The present invention relates to a fluid circulating unit, a mobile terminal including the fluid circulating unit, and a control method thereof.

The present invention relates to a fluid circulation unit, a mobile terminal including the fluid circulation unit, and a control method thereof, and more particularly, to a fluid circulation unit including a fluid circulation unit having a piezo pump for flowing heat and cooling heat generated in the electronic device, To a fluid circulation unit capable of effectively controlling temperature, a mobile terminal including the fluid circulation unit, and a control method thereof.

A terminal such as a personal computer, a notebook computer, or a mobile phone has various functions, for example, a multimedia device having a complex function such as photographing or photographing of a moving picture, reproduction of music or a moving picture file, (Multimedia player).

The terminal can move And may be divided into a mobile terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

In order to support and enhance the functionality of the terminal, it is contemplated to improve the structural and / or software portion of the terminal.

Recently, a variety of terminals including mobile terminals provide a complex and various functions, and the menu structure is also becoming complicated. In addition, a function of displaying various digital documents including a web page is added to a mobile terminal.

The present invention relates to a fluid circulating part including a fluid circulating part provided with a piezo pump for circulating fluid to cool heat generated in the electronic device, thereby effectively controlling the temperature of the electronic device, a mobile terminal including the same, and a control method thereof .

According to an aspect of the present invention, there is provided a mobile terminal comprising: a case defining an appearance; At least one electronic element located within the case; And a fluid circulating unit having a piezo pump for flowing the fluid to cool the heat generated in the electronic device.

According to another aspect of the present invention, there is provided a fluid circulating unit comprising: a shield can which shields at least one electronic device; A housing integrally formed with at least a part of the shield can; And a piezo-electric pump provided in the housing, the piezo-electric pump flowing the fluid absorbing heat generated in the electronic device to the outside of the housing.

According to another aspect of the present invention, there is provided a method of controlling a mobile terminal, including: measuring a temperature of at least one electronic device; And discharging heat generated in the electronic device by operating the piezoelectric pump when the measured temperature of the electronic device is higher than a predetermined set temperature.

The fluid circulation unit, the mobile terminal including the fluid circulation unit, and the control method thereof may include a fluid circulation unit having a piezo pump for flowing heat and cooling the heat generated in the electronic device, thereby effectively controlling the temperature of the electronic device There is an effect that can be.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
Fig. 2 is an exploded rear perspective view of the mobile terminal of Fig. 1;
3 is a sectional view in the direction of FIG.
4 and 5 are views showing the operation of the fluid circulation unit according to an embodiment of the present invention.
6 is a sectional view of the vent hole of Fig. 2;
7 and 8 are views showing a fluid circulation unit and a mobile terminal according to another embodiment of the present invention.
9 is a view showing a fluid circulation unit according to another embodiment of the present invention.
10 is a flowchart illustrating an operation of a mobile terminal according to an embodiment of the present invention.
11 is a diagram illustrating a screen of a mobile terminal according to an embodiment of the present invention.
12 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Further, numerals (e.g., first, second, etc.) used in the description process of this specification are only an identifier for distinguishing one component from another component

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention.

As shown, the mobile terminal 100 may include an upper case 101 and a lower case 102.

Various elements may be disposed in the upper case 101 and the lower case 102 depending on the function and / or design of the mobile terminal 100. [ For example, as shown in the figure, the display unit 151 can be provided on the upper surface side of the upper case 101.

The display unit 151 can visually display various kinds of information output from the mobile terminal 100. The display unit 151 may be implemented as an LCD (Liquid Crystal Display) module, an OLED (Organic Light Emitting Diode) module, a TOLED (Trapped OLED) module, or an e-paper module.

The window covering the front surface of the display unit 151 may be configured to cover the entire surface of the front surface of the upper case 101 so as not to form a boundary line on the front surface of the upper case 101 . Alternatively, the external key 131 may be disposed on a part of the front surface of the upper case 101 so that key input is possible.

The mobile terminal 100 may include various modules for wireless communication. That is, it means that various data including voice signals can be transmitted and received wirelessly through a wireless communication unit including a broadcast receiving module, a mobile communication module, a wireless Internet module, and a short distance communication module.

The first sound output unit 152 can output a call sound to the other party during the execution of the call function or the like. Therefore, it can be positioned on the upper side of the upper case 101 to correspond to the position of the user's ear using the mobile terminal 100. The first sound output unit 152 may be implemented as a loud speaker for outputting an alarm sound, a multimedia sound, or the like to the mobile terminal 100. In addition to the first sound output unit 152, a loudspeaker may be separately provided.

The sound input unit 122 may be a microphone through which a voice of the user of the mobile terminal 100 is input during execution of a call function or the like. The sound input unit 122 may be positioned below the upper case 101 to correspond to a mouth position of a user using the mobile terminal 100. [

The upper case 101 and the lower case 102 may be made of synthetic resin or may be formed of a metal such as stainless steel or titanium. Various components for operating the mobile terminal 100 may be mounted inside the cases 101 and 102. [

The first image input unit 121 may be located in the upper case 101. The first image input unit 121 may be implemented in the form of a camera module for capturing an image of a user of the mobile terminal 100 in a video call or the like.

A side key 132, a broadcast receiving antenna 116, an interface unit 170, and the like may be provided on a side surface of the lower case 102.

The side key 132 may be collectively referred to as a manipulating portion in addition to the operation key 131 of the upper case 101. The side key 132 may be any key as long as the user is in a tactile manner with a tactile impression. For example, the side key 132 may be implemented as a dome switch, a wheel, a jog, a joystick, or the like, and a touch screen or a touch pad.

The side key 132 may be functionally distinct from the other keys. That is, general commands such as character input, start, end, and scroll can be input through the operation keys 131 of the upper case 101 and the keypad 133 of the front face of the lower case 102, The side key 132 may be a hot key for activating or deactivating a specific function such as image capturing and volume control.

The broadcast receiving antenna 116 may be installed to be able to be drawn out from the lower case 102. That is, if necessary, the user can pull the antenna 116 and use it.

The interface unit 170 may function as a channel through which the mobile terminal 100 performs data exchange with other electronic devices. The interface unit 170 may be a terminal connected to an earphone, a port for short-range wireless communication, or a power supply terminal. The interface unit 170 may be an IrDA port, a Bluetooth port, a wireless LAN port, or the like when the interface unit 170 is a port for short range wireless communication. Further, the interface unit 170 may be a socket for accommodating a Sus- scriber Identification Module (SIM), a User Identity Module (UIM), and an external memory.

Fig. 2 is an exploded rear perspective view of the mobile terminal of Fig. 1;

As shown in the figure, the second image input unit 123 may be mounted on the lower case 102 of the mobile terminal 100 according to an embodiment of the present invention.

The second image input unit 123 can take an image in a direction opposite to that of the first image input unit (121 in FIG. 1). The second image input unit 123 may be a camera having pixels different from those of the first image input unit 123. For example, the first image input unit 121 may be a relatively low pixel camera, and the second image input unit 123 may be a relatively high pixel camera. A flash 125 and a mirror 124 may be additionally disposed in the vicinity of the second image input unit 123. [

The flash 125 can emit light toward a subject photographed by the second image input unit 123.

The mirror unit 124 may be used to confirm the photographing angle and the like when the user of the mobile terminal 100 wants to photograph the second image input unit 123 himself / herself.

And the second sound output section 155 may be additionally located in the lower case 102. [ The second sound output unit 155 can be used together with the first sound output unit 152 to implement a stereo function, to output a multimedia playback sound, or to make a call in the speakerphone mode.

A battery cover 190 may be coupled to the lower case 102. The battery cover 190 may be selectively coupled to the lower case 102 to protect the battery 250 located therein from shock and moisture.

Various components for the operation of the mobile terminal 100 may be located inside the upper case 101 and the lower case 102. The part for operation may be a PCB 230 on which an electronic element is mounted.

The PCB 230 (Printed Circuit Board) may be one or more. The PCB 230 may include a conventional PCB and a thin flexible PCB (Flexible Printed Circuit Board).

Various electronic components may be mounted on the PCB 230. An electronic element mounted on a PCB can generate heat during operation. The degree of heat generation may vary depending on the electronic components. The mobile terminal 100 is made thinner and thinner, while the performance is gradually becoming higher. As a result, electronic elements are increasingly denser and their performance is increasing. Therefore, the amount of heat generated during the operation of the electronic element may gradually increase. Particularly, a processor that mainly performs a control operation of the mobile terminal 100 has an increase in the amount of heat generated in proportion to a clock speed of 1 GHz or higher.

Some of the electronic components mounted on the PCB 230 may be shielded by the shield can 240.

The shield can 240 may be provided to cover specific electronic elements in order to prevent the emission of electromagnetic waves generated by the electronic elements or to prevent the influence of electromagnetic waves generated by other electronic elements. Thus, the shield can 240 is typically configured to be coupled to one side of the PCB 230.

The shield can 240 shields certain electronic components, which can interfere with the divergence of heat generated by certain shielded electronic components. Graphite or the like is used to enhance the divergence of electronic elements, but the total amount of heat that can be diverted may be limited.

The shield can 240 may be provided with a fluid circulating part (200 of FIG. 3). For example, when viewed from the outside, the housing 201 of the fluid circulation unit 200 (FIG. 3) may be exposed.

The housing 201 may be formed integrally with the shield can 240. That is, it means that the housing 201 can be manufactured in the process of manufacturing the shield can 240. If the housing 201 is integrally formed with the shield can 240, the increase in the thickness, weight, cost, and the like of the mobile terminal 100 due to the addition of the fluid circulation unit 200 (FIG. 3) can be minimized. That is, it means that there is no increase in thickness or the like that may occur due to the provision of the housing 201 separately.

3 is a sectional view in the direction of FIG. 2A-A.

The fluid circulating part 200 of the mobile terminal 100 according to an embodiment of the present invention may include a piezo pump 205 and a fluid path 207 .

The fluid circulating unit 200 may be integrally formed with the shield can 240 as described above. Therefore, compared with a case where the fluid circulating unit 200 is provided separately, it can be advantageous in terms of space efficiency.

The piezoelectric pump 205 can convert electrical energy into mechanical energy using a piezoelectric phenomenon so that fluid flows. That is, the piezoelectric pump 205 means that a fluid can be pressurized using a piezoelectric transducer.

When a voltage is applied to the piezoelectric transducer, the electrostriction effect of distorting the piezoelectric crystal constituting the piezoelectric transducer occurs. The piezoelectric pump 205 can move the fluid air in a certain direction by using the mechanical energy generated due to the change of the position of the piezoelectric crystal due to the electrostriction effect.

The piezo pump 205 can reciprocate in a constant direction as shown in Fig. For example, it means that you can make a round trip to the left and right. When the piezo pump 205 moves to the right, the fluid is pushed to the right, and when moved to the left, the fluid is pushed to the left.

The flow path 207 can smoothly flow the fluid due to the mechanical energy generated by the piezo pump 205. When the air moves along the flow path 207, the heat generated from the electronic device 232 attached to the PCB 230 can be more smoothly emitted. This can be clearly understood in view of the fact that the divergence of heat may not be smooth when the air around the electronic device 232 is stagnant.

An inlet port 204 and a discharge port 206 may be provided on the flow path 207.

The inlet port 204 is located on the path through which the air moves from the electronic element 232 to the piezoelectric pump 205 and the outlet port 206 is moved to the piezoelectric pump 205, Can be located on the path.

The first and second check valves 202 and 203 may be provided at the inlet 204 and the outlet 206, respectively.

The first and second check valves 202 and 203 may be opened only in one direction. Since the first and second check valves 202 and 203 are opened only in one direction, the movement of the fluid by the piezo pump 205 can be performed in only one direction. For example, it means that air can flow from the electronic device 232 to the outside of the fluid circulating part 200.

4 and 5 are views showing the operation of the fluid circulation unit according to an embodiment of the present invention.

As shown in these drawings, the fluid circulating unit 200 according to an embodiment of the present invention can drain the heat generated in the electronic device 232 to the outside by the operation of the piezo pump 205.

As shown in Fig. 4, the piezo pump 205 can move in the A direction.

When the piezo-electric pump 205 moves in the direction A, pressure may be lowered on the right side of the piezo-electric pump 205 by the moved space. When the pressure is lowered, the air on the relatively high-pressure flow path 207 can move to the side of the piezo pump 205 by opening the first check valve 202. The first check valve 202 may be a valve that opens only in a clockwise direction.

The air entering through the first check valve 202 may be relatively hot. That is, air that has absorbed heat generated in the electronic device 232 such as a processor.

The second check valve 203 may not be opened even if the piezo pump 205 moves in the A direction. That is, the second check valve 203 may be a valve that is opened only in a clockwise direction.

As shown in Fig. 5, the piezo pump 205 can move in the direction B. Fig.

When the piezoelectric pump 205 moves in the direction B, an increase in pressure may occur on the right side of the piezoelectric pump 205 by the moved space. When the pressure is increased, the relatively high-pressure inside air can be discharged to the outside of the fluid circulating unit 200 by opening the second check valve 203.

The first check valve 202, which is opened in the clockwise direction, may be in a closed state even if the piezo-pump 205 moves in the B direction to increase the internal pressure. Therefore, the air inside can only move upward.

The piezo pump 205 can repeatedly move in the A direction and the B direction. Therefore, heat generated in the electronic device 232 can be discharged to the outside along with the flow of air. Therefore, the electronic device 232 can operate smoothly.

6 is a sectional view of the vent hole of Fig. 2;

The vent hole 104 may be located in the lower case (104 in Fig. 2). The vent hole 104 may correspond to the position of the discharge port (206 in Fig. 5) of the fluid circulation portion (200 in Fig. 5). Therefore, the air discharged from the discharge port (206 in FIG. 5) can be discharged to the outside of the mobile terminal (100 in FIG. 2) through the vent hole 104.

The ventilation hole 104 may be provided with a selective permeation membrane 250.

The selective permeable membrane 250 is configured such that the fluid smoothly permeates from the interior (I) to the exterior (O) of the mobile terminal (100 of FIG. 2) but does not allow fluid to permeate from the exterior (O) to the interior . For example, it means that liquid such as liquid water or sweat can be provided as a material that can prevent the moisture from penetrating from the outside (O) to the inside (I). In order to exhibit such characteristics, the selective permeable film 250 may be formed of a gore-tex material.

The vent hole 104 may be positioned upward with respect to the longitudinal direction of the mobile terminal (100 in Fig. 2). That is, it means that it can be located at a position shifted upward from the half of the entire length of the mobile terminal (100 in FIG. 2). This means that when the user grasps the mobile terminal (100 in Fig. 2), it can be positioned at a portion which is not generally reachable, because the vent hole 104 is located at a position shifted upward. Therefore, sweat generated in the user's hand can be prevented from entering the inside of the mobile terminal 100 through the vent hole 104. Furthermore, it is possible to prevent the air hole 104 from being clogged by the foreign substance on the user's hand.

The vent hole 104 may be located at about 0.3 from the upper side when the length of the mobile terminal (100 in Fig. 2) is 1.

7 and 8 are views showing a fluid circulation unit and a mobile terminal according to another embodiment of the present invention. In the description of other embodiments of the present invention, only the parts different from the embodiment of the present invention will be described.

As shown in these drawings, the fluid circulating unit 200 according to another embodiment of the present invention may have an outside air inlet 208.

As shown in Fig. 7, the outside air inflow port 208 may be located at the starting point of the flow path 207. [ That is, it means that air can be sucked in through the outside air inlet 208.

When the outside air is sucked through the outside air inlet port 208, the electronic device 232 can be cooled more effectively. That is, relatively outside air may be low temperature. Therefore, it is possible to directly supply the low-temperature air to the fluid circulating unit 200, which means that more effective cooling can be achieved.

As shown in FIG. 8, the lower case 102 may be provided with first and second vent holes 104a and 104b. That is, it means that the first vent hole 104a corresponds to the outside air inlet (208 in Fig. 7), and the second vent hole 104b can be provided at the position corresponding to the inlet 204. [ The selective permeation membrane (250 in FIG. 6) may be provided in each of the first and second vent holes 104a and 104b as described above.

9 is a view showing a fluid circulation unit according to another embodiment of the present invention. In the description of the other embodiment of the present invention, only the parts different from the embodiment of the present invention will be described.

As shown in the drawing, the fluid circulation unit 200 according to another embodiment of the present invention may have the inlet 204 positioned above the fluid circulation unit 200.

The air sucked through the inlet port 204 can be discharged to the first and second discharge ports 206a and 206b through the flow path 207. [

Since the first and second discharge ports 206a and 206b flow out to the outside in the vicinity of the electronic element 232 that generates heat, an increase in the cooling effect can be expected. That is, the air flowing along the flow path 207 can be discharged to the outside of the fluid circulating unit 200 before the temperature of the other part of the fluid circulating unit 200 is increased. Due to the ability to quickly discharge hot air, relatively fast cooling may be possible.

10 is a flowchart illustrating an operation of a mobile terminal according to an embodiment of the present invention.

As shown, the controller 180 of the mobile terminal 100 according to an exemplary embodiment of the present invention can effectively control the operation of the fluid circulating unit 200.

The step S10 of measuring the temperature of the electronic device 232 may be performed.

The temperature of the electronic device 232 can be measured through the sensing unit 140. The temperature can measure the temperature of the electronic device 232 itself or the temperature around the electronic device 232.

(S20) may be performed to determine whether the measured temperature of the electronic device is higher than the set temperature.

The set temperature may be a temperature in a state where operation of the fluid circulating unit 200 is required. The set temperature may be set at the time of manufacture of the mobile terminal 100.

If the measurement temperature is higher than the set temperature, step S30 for operating the piezo-electric pump 205 proceeds, and step S40 for stopping the operation of the piezo-electric pump 205 may proceed if the measured temperature is not higher than the set temperature.

11 is a diagram illustrating a screen of a mobile terminal according to an embodiment of the present invention.

As shown in the figure, the mobile terminal 100 according to an embodiment of the present invention can inform the user of the operation of the fluid circulating unit 200.

The control unit 180 may display a popup window P informing the display unit 151 that the cooling apparatus is in operation.

The control unit 180 can display an icon IC on the display unit 151 when the cooling apparatus is in operation separately from the display of the popup window P or the display of the popup window P. [

The icon (IC) may be a shape in which the vane shape is rotated. Therefore, the user intuitively recognizes that the cooling device is operating.

12 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. The components shown in Fig. 12 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of a DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of a DVBH (Digital Video BroadcastHandheld).

The broadcast receiving module 111 receives a broadcast signal using various broadcasting systems. In particular, the broadcast receiving module 111 may be a digital multimedia broadcasting broadcasting (DMBT), a digital multimedia broadcasting satellite (DMBS), a media forward link only (MediaFLO), a digital video broadcasting ), And ISDBT (Integrated Services Digital Broadcast Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory unit 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the mobile terminal 100 or externally. WLAN (WiFi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. A typical example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information on a distance (distance) from three or more satellites to one point (entity), information on the time when the distance information is measured, , Three-dimensional position information according to latitude, longitude, and altitude of one point (individual) in one hour can be calculated. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 continues to calculate the current position in real time and uses it to calculate speed information.

12, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory unit 160 or may be transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it may be responsible for a sensing function related to whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, a 3D display And may include at least one.

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. A typical example of the transparent display is a transparent LCD or the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

The display unit 151 is connected to a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') having a mutual layer structure It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 12, a proximity sensor may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is wrapped by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory unit 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal can also be output through the display unit 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may be configured to perform various functions such as an effect of stimulation by a pin arrangement vertically moving with respect to a contact skin surface, an effect of stimulation by air spraying force or suction force through a jet opening or a suction opening, A variety of tactile effects such as an effect of stimulation through contact of an electrode, an effect of stimulation by an electrostatic force, and an effect of reproducing a cold sensation using a heat absorbing or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to feel the tactile effect through the muscles of the user's finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory unit 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory unit 160 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) At least one of a random access memory (RAM), a static random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- Lt; / RTI > type of storage medium. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory unit 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, microcontrollers, microprocessors, and electrical units for performing functions. In some cases such embodiments may be implemented using a controller 180 < / RTI >

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. Also, the software codes may be stored in the memory unit 160 and executed by the control unit 180. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: mobile terminal 110: wireless communication unit
140: sensing unit 151: display unit
180:

Claims (16)

A case forming an appearance;
At least one electronic element located within the case;
A shield can for shielding the electronic device;
A housing which is provided at least at a part of the upper end of the shield can and includes a piezo pump for flowing a fluid to cool heat generated in the electronic device;
A fluid path provided in the shield can for guiding the flow of the fluid generated by the piezo pump to the electronic device; And
And at least one vent hole positioned at one side of the case and discharging the fluid to the outside,
Wherein the at least one vent hole is located at a position spaced a predetermined distance upward from a half of the case length,
At least a part of the housing of the piezo pump is formed integrally with at least a part of the shield can. delete delete delete The method according to claim 1,
The case includes a front case and a rear case,
Wherein the at least one vent hole is located in the rear case. The method according to claim 1,
The at least one vent hole may be formed in the at least one through-
Wherein the mobile terminal is located at a position spaced a predetermined distance from a half of the length of the mobile terminal. The method according to claim 1,
The at least one vent hole may be formed in the at least one through-
Further comprising a selective permeable membrane for preventing entry of moisture through said at least one vent hole. delete The method according to claim 1,
And a controller for selectively operating the piezoelectric pump according to the degree of the generated heat. delete delete The method according to claim 1,
In the housing,
Wherein at least one inlet and at least one outlet are spaced apart from each other. 13. The method of claim 12,
Said at least one inlet and said at least one outlet,
Wherein at least one check valve that opens in one direction is provided. delete delete delete

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