WO2016173147A1

WO2016173147A1 - Switching device, terminal and method for terminal heat dissipation

Info

Publication number: WO2016173147A1
Application number: PCT/CN2015/086906
Authority: WO
Inventors: 李春利
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-04-28
Filing date: 2015-08-13
Publication date: 2016-11-03
Also published as: CN106155243A

Abstract

A switching device (104), a terminal and a method for terminal heat dissipation. The switching device (104) comprises a first heat dissipation conductor (201), a second heat dissipation conductor (203) and a connection structure (202) disposed between the two heat dissipation conductors; the connection structure (202) is used to achieve disconnection and connection between the first heat dissipation conductor (201) and the second heat dissipation conductor (203); the terminal comprises a holding part detection device (101), a temperature detection device (106) disposed in a heat source region of the terminal, the abovementioned switching device (104), a processor device (103), and a plurality of heat sinks (105) distributed in the heat source region and a non-heat source region of the terminal, and the switching device (104) is disposed between the heat source region and the non-heat source region of the terminal. The terminal disperses heat from the heat source region held by a user to areas in the non-heat source region that are not held by the user, giving the user a better feeling during use of the terminal.

Description

Switch device, terminal and terminal heat dissipation method

Technical field

The present invention relates to the field of communications, and in particular, to a switch device, a terminal, and a terminal heat dissipation method.

Background technique

Existing mobile phones, especially smart phones, have become very important communication, entertainment and office tools in people's daily life. At the same time, the functions of mobile phones are becoming more and more powerful, performance is getting higher and higher, and data services are getting faster and faster. As a result, the heat generated by the mobile phone is getting higher and higher. If the heat of the mobile phone cannot be dissipated in time, the performance of the whole machine will be affected, and the subjective feeling of the user is poor due to overheating of the mobile phone. At present, the most commonly used heat dissipation method is to use a heat conductive material on the main heat-generating components such as the main chip, the power amplifier, and the power management to conduct heat to the outer casing of the mobile phone and then dissipate through the outer casing. Some areas of the mobile phone have a certain amount of heat in a specific scene, and the user actually encounters these heat-generating areas in a relatively large area where the hand is held for a long time, which causes the hand to hold for a long time. The temperature of the part is high, resulting in poor user experience.

Summary of the invention

The embodiment of the invention provides a switch device, a terminal and a heat dissipation method of the terminal. The purpose of the invention is to enable the terminal to achieve good heat dissipation and bring a good use experience to the user.

In order to achieve the above object, an embodiment of the present invention provides a switching device including a first heat dissipation conductor, a second heat dissipation conductor, and a connection structure between the first heat dissipation conductor and the second heat dissipation conductor, and the connection structure The middle portion is provided with a rotating shaft, and the connecting structure is rotatable along the rotating shaft such that both ends of the connecting structure are in contact with the first heat dissipating conductor and the second heat dissipating conductor, respectively.

Preferably, the first heat dissipation conductor and the second heat dissipation conductor are copper foils disposed in parallel.

The embodiment of the present invention further provides a terminal, including a plurality of heat dissipating devices, wherein the plurality of heat dissipating devices are distributed in a heat source area and a non-heat source area of the terminal; and the holding part detecting device is configured to hold the terminal part by a user. a temperature detecting device disposed in the heat source region, configured to detect a temperature Tt of the heat source region; the switching device, the first heat dissipating conductor is connected to a heat dissipating device of the heat source region, and the second a heat dissipation conductor is coupled to the heat sink of the non-heat source region; a power management device configured to supply power to the grip portion detecting device, the temperature detecting device, the processor device, and the switching device, the switch The connection structure of the device is connected to the power management device; the processor device is configured to be based on information detected by the grip portion detecting device and the temperature detecting device and a pre-stored user grip The comfort temperature threshold Tsmax controls the opening and closing of the switching device.

Preferably, the terminal further includes an information collecting device configured to collect and store the temperature detecting device to detect the temperature Tt of the heat source region, collect and store information detected by the grip portion detecting device, and store the user's grip. Comfort temperature threshold Tsmax.

Preferably, the terminal further includes a PCB circuit board, the heat dissipation device includes a shielding frame fixedly disposed on the PCB circuit board, a shielding cover covering the shielding frame, and a shielding layer attached to the shielding cover heat sink.

Preferably, the heat sink is a graphite sheet or a heat conductive film.

Preferably, the temperature detecting device is a temperature sensor, the holding portion detecting device is a touch sensor, and the processor device is a main chip of the terminal.

The embodiment of the present invention further provides a terminal heat dissipation method, the terminal includes a grip portion detecting device, a temperature detecting device, a switch device, a processor device, a power management device, and a plurality of heat source regions and non-heat source regions distributed in the terminal. a heat dissipating device, the method comprising: the grip portion detecting device detecting whether the user is held in the heat source region; and when the grip portion detecting device detects that the user is not holding the heat source region, the processor The device controls the switching device to maintain an off state; when the grip portion detecting device detects that the user is held in the heat source region, the temperature detecting device detects the temperature Tt of the heat source region; the processor device is configured according to The temperature Tt of the heat source zone and the comfort temperature threshold Tsmax held by the pre-stored user control the opening and closing of the switching device between the heat sink of the heat source zone and the heat sink of the non-heat source zone.

Preferably, the terminal further includes an information detecting device, and the processor device controls the heat sink of the heat source region according to the temperature Tt of the heat source region and the comfort temperature threshold value Tsmax held by the pre-stored user. The step of opening and closing the switching device between the heat dissipating devices of the non-heat source region includes: the information collecting device collecting and storing the temperature Tt of the heat source region; the processor device calling the temperature of the heat source region Tt and determining whether the temperature Tt is greater than a comfort temperature threshold Tsmax held by the user; when Tt≤Tsmax, the processor device controls the switching device to be in an off state; when Tt>Tsmax, The processor device controls the power management device to energize a switching device disposed between a heat sink disposed in the heat source region and a heat sink disposed in a portion of the non-heat source region that is not held by a user, so that the power is turned on status.

The switch device proposed by the embodiment of the invention is provided with a heat dissipating conductor, and the different parts of the terminal are controlled by controlling the direction of the connection structure The heat dissipating devices are connected to each other to transfer heat from the high-temperature heat dissipating device to the low-temperature heat dissipating device, thereby realizing heat transfer and enabling the terminal to have better heat dissipation effect. The terminal provided by the embodiment of the present invention is configured to detect whether the user holds the heat source area of the terminal by setting the holding part detecting device in the heat source area and the non-heat source area of the terminal, and setting a temperature detecting device to detect the temperature of the area in the heat source area. Tt, the switching device is disposed between the heat source region and the heat sink of the non-heat source region, and the processor device compares the heat source region temperature Tt with a pre-stored user-friendly comfort temperature threshold value Tsmax, thereby controlling the switch device. Disconnecting and communicating to connect the heat sink of the heat source zone with the heat sink of the non-heat source zone that is not held by the user, dispersing the heat to the heat sink of the non-heat source zone that is not held by the user, thereby reducing The temperature of the heat source area held for a long time is used to dissipate heat from the terminal.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic view showing a closed state of a preferred embodiment of the switch gear of the present invention;

2 is a schematic view showing a disconnected state of a preferred embodiment of the switchgear of the present invention;

3 is a schematic structural diagram of a preferred embodiment of a terminal according to the present invention;

4 is a schematic structural diagram of a heat dissipation device according to a preferred embodiment of the terminal of the present invention;

5 is a flowchart of a method for dissipating a terminal according to the present invention;

6 is a schematic diagram of heat dissipation when the heat source area of the terminal of the present invention is located in the middle of the terminal and the two ends of the terminal are held by the terminal;

7 is a schematic diagram of heat dissipation when a heat source area is located in the middle of the terminal and the middle and lower parts of the terminal are held by the terminal according to a preferred embodiment of the present invention;

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions of the present invention are further described in conjunction with the accompanying drawings and specific embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiments of the present invention provide a switch device, a terminal, and a heat dissipation method of the terminal.

1 and FIG. 2, FIG. 1 is a schematic view showing a closed state of a preferred embodiment of a switch device according to the present invention, and FIG. 2 is a schematic view showing a disconnected state of a switch device according to a preferred embodiment of the present invention; The heat dissipating conductor 201, the connecting structure 202 and the second heat dissipating conductor 203 are composed of three parts, wherein the first heat dissipating conductor 201 and the second heat dissipating conductor 203 are metal heat dissipating conductors, and other heat conducting materials may be selected, and copper foil is preferred in this embodiment. , the material of the connection structure 202 and The first heat dissipating conductor 201 and the second heat dissipating conductor 203 are the same, and a rotating shaft is disposed therebetween. When the power management device does not supply power thereto, the connecting structure 202 is in a horizontal position disconnected state, and the power management device supplies power to both the positive and negative ends thereof. When the connection structure 202 is rotated by 90 degrees, the first heat dissipation conductor 201 and the second heat dissipation conductor 203 are communicated to realize heat transfer between the first heat dissipation conductor 201 and the second heat dissipation conductor 203.

Since the switch device provided by the embodiment of the present invention is provided with a heat-dissipating conductor, the heat-dissipating device of different parts of the terminal is connected by controlling the direction of the connection structure, so that heat is transferred from the heat-dissipating device with high temperature to the heat-dissipating device with low temperature, thereby realizing heat. Passing, can make the terminal's heat dissipation effect better.

The embodiment of the present invention further provides a terminal. Referring to FIG. 3, it is a schematic structural diagram of a preferred embodiment of the terminal of the present invention.

In this embodiment, the mobile phone is taken as an example for description. However, it should be noted that the method for dissipating the terminal and the terminal in the embodiment of the present invention is not limited to a mobile phone, and may also be a device that requires a long-time holding operation, such as a tablet computer or a remote controller. The terminal of the embodiment includes:

a plurality of heat dissipating devices 105 are distributed in the heat source area and the non-heat source area of the mobile phone;

The grip detecting device 101, preferably a touch sensor, is located in each of the heat source area and the non-heat source area of the mobile phone. The number of touch sensors can be set according to the size of the terminal, and the detection range of the touch sensor is covered to cover various parts of the terminal, and is set as a user. The detection of the portion holding the terminal, the touch sensor located in the heat source area can determine whether the user is holding the heat source area, and the touch sensor located in the non-heat source area is set to detect whether the user is holding the area. Specifically, it can be realized by a capacitive touch sensor. When the user touches the mobile phone, the capacitive touch sensor starts to work, and a touch/no-touch signal can be generated to determine whether a certain part of the mobile phone is held by the user. The core part of the capacitive touch sensor is a set of conductors that interact with the electric field. Under the skin, the human tissue is filled with conductive electrolyte (a type of lossy dielectric). When the hand touches the mobile phone, the capacitive touch sensor is added. The conductive surface area, the extra charge storage capacity generated by the finger is the known finger capacitance CF, and the sensor capacitance when no finger is touched is represented by the CP, thereby determining whether a certain part of the mobile phone is held by the user.

The temperature detecting device 106 is disposed in a heat source region, preferably a temperature sensor, and is configured to detect the temperature Tt of the heat source region.

The information collecting device 102 is configured to collect and store the temperature detecting device 106 to detect the temperature Tt of the heat source region, collect and store the information detected by the grip portion detecting device 101, and store the comfort temperature threshold value Tsmax held by the user.

The switching device 104 is configured to be disconnected and connected to the heat sink 105 of the heat source region and the heat sink 105 of the non-heat source region, and the first heat dissipating conductor 201 is connected to the heat sink 105 of the heat source region, and the second heat dissipating conductor 203 and the non-heat source are connected. The heat sinks 105 of the zones are connected, and the connection structure 202 is connected to the power management device 107.

The processor device 103 is configured to control the opening and closing of the switching device 104 based on the information detected by the grip portion detecting device 101 and the temperature detecting device 106 and the pre-stored comfort temperature threshold value Tsmax held by the user.

The power management device 107 is preferably a main chip of the mobile phone in this embodiment. In other embodiments, a separate processor chip may be provided, which is provided as the grip detecting device 101, the temperature detecting device 106, and the processor device. 103 and switching device 104 are powered.

It should be noted that, in other embodiments, the information collecting device 102 may not be provided, and the grip detecting device 101 and the temperature detecting device 106 may directly send the detected information to the processor device, and the user holds the comfort. The temperature threshold value Tsmax may be pre-stored in the processor device. The comfort temperature threshold value Tsmax held by the user herein may be a certain temperature value obtained by a plurality of experimental tests in advance, and is stored in the processor device in advance. If the user is holding the mobile phone for a long time in the heat source area of the mobile phone (the area where the mobile phone heat source is located), the temperature will be higher when the mobile phone is used. When the user exceeds the comfortable temperature threshold, the user's use will be affected. Feel.

Specifically, when the grip detecting device 101 detects that the user is not currently holding the heat source area of the mobile phone, the information collecting device 102 collects and stores the information, and the processor device 103 calls the information of the information collecting device and controls the power management device not to give The switch device 104 is powered, and the switch device 104 remains in the off state; when the grip portion detecting device 101 detects that the user is currently holding the heat source area of the mobile phone, and the temperature detecting device 106 detects the temperature of the heat source region, the information collecting device 102 will hold The information of the part detecting device 101 and the information of the temperature detecting device 106 are collected and stored, and the processor device 103 calls the information in the information collecting device 102. When Tt < Tsmax, the processor device 103 controls the power device not to supply power to the switching device 104. The device 104 remains in the off state and does not dissipate heat. When Tt>Tsmax, the processor device 103 controls the power management device 107 to provide a heat sink disposed in the heat source region and a heat sink disposed in a portion of the non-heat source region that is not held by the user. The switching device 104 is powered, the switching device 104 is closed, and the temperature is not from the heat source region to the non-heat source region. The portion held by the user is dispersed; when Tt = Tsmax, the processor device 103 controls the power management device 107 to stop supplying power to the switching device 104, and the switching device 104 is turned off to stop heat dissipation.

Specifically, referring to FIG. 4, a schematic diagram of a heat dissipation device according to a preferred embodiment of the present invention is provided. The heat dissipation device 105 is configured to evacuate heat generated by the operation of the internal device of the mobile phone, and the heat dissipation device 105 includes a PCB circuit board soldered to the mobile phone. The upper shield frame 301 covers the shield 302 on the shield frame 301 and the heat sink 303 attached to the shield 302. In the embodiment, the heat sink 303 is preferably a graphite sheet or a heat conductive film.

The embodiment of the present invention provides a method for dissipating a terminal. Referring to FIG. 5, it is a flowchart of a method for dissipating a terminal according to an embodiment of the present invention, which specifically includes the following steps:

S501. The grip detecting device detects whether the user holds the heat source area.

S502, the grip portion detecting device detects that the user is not holding the heat source region, and the processor device controls the switch device to remain in the off state.

S503, the grip portion detecting device detects that the user holds the heat source region, and the temperature detecting device detects the temperature Tt of the heat source region.

S504, the information collecting device 102 collects and stores the heat source region temperature Tt.

S505. The processor device 103 calls the heat source region temperature Tt stored by the information collecting device 102 and determines whether Tt is greater than a comfort temperature threshold value Tsmax held by the user.

S506, when Tt≤Tsmax, the processor device controls the switching device to be in an off state.

S507, when Tt>Tsmax, the processor device controls the power management device to energize the switch device between the heat sink device of the heat source region and the heat sink device disposed at a portion of the non-heat source region that is not held by the user, so that the switch device is at Closed state.

The following is an example of a terminal in which the heat source area is located in the middle of the mobile phone and the user holds the two ends of the mobile phone, the heat source area is located in the middle of the mobile phone, and the user uses the middle and lower parts of the mobile phone in one hand. Cooling method. Specifically, referring to FIG. 6 and FIG. 7, 601, 605, and 610 are heat dissipating devices, 609 is a heat source area, and 602, 604, 606, and 608 are metal heat dissipating conductors of the switching device, such as copper foil, 603. 607 is a connection structure of the switch device, and has the same material as the metal heat-dissipating conductor, and has a rotating shaft in the middle, and is initially in a horizontal disconnected state. When the power management device supplies power thereto, the connecting device rotates by 90 degrees to connect the metal heat-dissipating conductor.

It should be noted that the shape and the number of the heat dissipating devices in the embodiments of the present invention are not limited, and the shape may be any shape, and is not limited to the shape shown in the drawings, and the number thereof may be based on the size of the terminal and the number of heat source regions. To determine; the number of switching devices is determined by the number of heat source zones and heat sinks.

When the heat source area is located in the middle of the mobile phone and the hands are held at the upper and lower ends of the mobile phone, as shown in FIG. 6, the grip detecting device detects that the user is not holding the heat source area 609, and the processor device controls the

connection structures

603 and 607. All are in the disconnected state, the heat source area is dissipated by its own heat sink 610, and no heat is required to diffuse to other heat sinks; when the heat source area is located in the middle of the mobile phone and is held in the middle and lower parts of the mobile phone with one hand, as shown in Fig. 7 It is shown that the grip portion detecting device detects that the user is holding the heat source region 609. When the temperature sensor detects that the temperature Tt of the heat source region 609 is higher than a preset user's comfortable temperature threshold value Tsmax, the processor device passes the power source. The management device control connection structure 603 rotates and connects the metal heat dissipation conductor 602 and the metal heat dissipation conductor 604, and the heat is diffused from the heat dissipation device 610 of the heat source region 609 to the heat dissipation device 601 located in the non-heat source region where the upper portion of the mobile phone is not held, because the user The hand is held in the middle and lower part of the mobile phone, and the non-heat source area on the upper part of the mobile phone is not held, because This only dissipates heat from the heat source area to the heat sink 601 of the heat source area that is not held, and does not dissipate to the heat sink 605 of the non-heat source area that is held in the middle and lower portions of the mobile phone, so as not to affect the user experience; If the user holds the middle and upper portions of the mobile phone at this time, the non-heat source area of the lower portion of the mobile phone is not held, and only heat is radiated to the heat sink 605 of the heat source area where the lower portion is not held.

The terminal provided by the embodiment of the present invention is configured to detect whether the user holds the area by setting the holding part detecting device 101 in the heat source area, and setting the holding part detecting device 101 in the non-heat source area, and setting to detect whether the user holds the An area, and at the same time, a temperature detecting means 106 is provided in the heat source area to detect the temperature of the area, and the information is transmitted to the processor means 103. The processor means 103 according to the received information and the pre-stored comfort temperature threshold of the user's grip. Tsmax controls the disconnection and communication of the switching device 104 by the power management device 107, thereby connecting the heat sink 105 of the heat source region with the heat sink 105 of the non-heat source region where it is not held, dispersing heat into the region, thereby reducing The temperature of the heat source area held for a long time completes the intelligent heat dissipation of the mobile phone, and provides a good use experience for the user.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

As described above, with the above embodiments and preferred embodiments, the heat sink of the heat source region is connected to the heat sink of the non-heat source region that is not held by the user, and the heat is dispersed into the non-heat source region without being held by the user. The heat sink of the area reduces the temperature of the heat source area held for a long time and realizes heat dissipation to the terminal.

Claims

A switching device includes a first heat dissipation conductor, a second heat dissipation conductor, and a connection structure between the first heat dissipation conductor and the second heat dissipation conductor, wherein a middle portion of the connection structure is provided with a rotating shaft, and the connection structure Rotating along the rotating shaft causes both ends of the connecting structure to be in contact with the first heat dissipating conductor and the second heat dissipating conductor, respectively.
The switching device according to claim 1, wherein the first heat dissipation conductor and the second heat dissipation conductor are copper foils disposed in parallel.
A terminal, the terminal comprising:

a plurality of heat dissipating devices, wherein the plurality of heat dissipating devices are distributed in a heat source region and a non-heat source region of the terminal;

a grip detecting device configured to detect that the user holds the terminal portion;

a temperature detecting device disposed in the heat source region, configured to detect a temperature Tt of the heat source region;

The switching device according to claim 1 or 2, wherein the first heat dissipating conductor is connected to a heat dissipating device of the heat source region, and the second heat dissipating conductor is connected to a heat dissipating device of the non-heat source region;

a power management device configured to supply power to the grip portion detecting device, the temperature detecting device, the processor device, and the switch device, wherein the connection structure of the switch device is connected to the power management device;

The processor device is configured to control the opening and closing of the switching device based on the information detected by the grip portion detecting device and the temperature detecting device and the pre-stored comfort temperature threshold value Tsmax held by the user.
The terminal according to claim 3, further comprising:

The information collecting device is configured to collect and store the temperature detecting device to detect the temperature Tt of the heat source region, collect and store information detected by the grip portion detecting device, and store a comfort temperature threshold value Tsmax held by the user.
The terminal according to claim 4, wherein the terminal further comprises a PCB circuit board, and the heat sink comprises a shield frame fixedly disposed on the PCB circuit board, a shield cover covering the shield frame, and a heat sink attached to the shield.
The terminal according to claim 5, wherein the heat sink is a graphite sheet or a heat conductive film.
The terminal according to claim 3, wherein said temperature detecting means is a temperature sensor, said holding portion is detected The device is a touch sensor and the processor device is the master chip of the terminal.
A terminal heat dissipation method, the terminal includes a grip portion detecting device, a temperature detecting device, a switching device, a processor device, a power management device, and a plurality of heat dissipating devices distributed in a heat source region and a non-heat source region of the terminal, The methods include:

The grip portion detecting device detects whether the user holds the heat source region;

The processor device controls the switching device to remain in an off state when the grip portion detecting device detects that the user is not holding the heat source region;

When the grip portion detecting device detects that the user is holding the heat source region, the temperature detecting device detects the temperature Tt of the heat source region;

The processor device controls a switching device between the heat sink of the heat source region and the heat sink of the non-heat source region according to the temperature Tt of the heat source region and the pre-stored comfort temperature threshold Tsmax Disconnected and closed.
The terminal heat dissipation method according to claim 8, wherein the terminal further comprises information detecting means, and the processor means sets a comfortable temperature threshold value according to the temperature Tt of the heat source area and the pre-stored user The step of controlling the opening and closing of the switching device between the heat sink of the heat source region and the heat sink of the non-heat source region by Tsmax includes:

The information collecting device collects and stores the temperature Tt of the heat source area;

The processor device calls the temperature Tt of the heat source region and determines whether the temperature Tt is greater than a comfort temperature threshold value Tsmax held by the user;

The processor device controls the switching device to be in an off state when Tt≤Tsmax;

When Tt>Tsmax, the processor device controls the power management device to be between a heat sink disposed in the heat source region and a heat sink disposed in a portion of the non-heat source region that is not held by a user. The switching device is energized to be in a closed state.