CN215496016U - Device based on PCB wire winding heating hard disk - Google Patents
Device based on PCB wire winding heating hard disk Download PDFInfo
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- CN215496016U CN215496016U CN202121658539.8U CN202121658539U CN215496016U CN 215496016 U CN215496016 U CN 215496016U CN 202121658539 U CN202121658539 U CN 202121658539U CN 215496016 U CN215496016 U CN 215496016U
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Abstract
The utility model provides a device for heating a hard disk based on PCB winding, which comprises a PCB, a winding group arranged on the upper surface of the PCB, a DC-DC power supply conversion circuit, an MCU control chip and a temperature sensor arranged on the lower surface of the PCB, wherein the winding group is arranged on the upper surface of the PCB; the winding group is copper sheet wiring; the winding group comprises an A group winding group uniformly distributed on the surface of the PCB, an A group power output port arranged at one end of the A group winding group, an A group grounding outlet arranged at the other end of the A group winding group, a B group winding group uniformly distributed on the surface of the PCB, a B group power output port arranged at one end of the B group winding group and a B group grounding outlet arranged at the other end of the B group winding group. The utility model aims to solve the problems that the hard disk can not normally work at low temperature, the existing hard disk is not uniformly heated and the high-temperature heat dissipation is unfavorable, the PCB wire-wound hard disk is adopted for heating, a heating wire and a heating element are not needed, the assembly is easy, the heating is uniform, the heat dissipation of the hard disk is facilitated when the hard disk works in a high-temperature environment, and the PCB wire-wound hard disk can also be applied to industrial control and extreme low-temperature working conditions.
Description
Technical Field
The utility model relates to the technical field of basic electrical elements, in particular to a device for heating a hard disk based on a PCB winding.
Background
In a bearing motor of a traditional mechanical hard disk, a liquid lubricant is used, the viscosity is high at low temperature (for example, below 0 ℃), and a hard disk plate is not smooth to rotate or even cannot start to rotate. Also, due to the semi-solidified lubricant, a minute vibration of the disk may be caused, thereby damaging the hard disk. The other solid state disk has the working temperature of 0-70 ℃ generally, and the solid state disk which can work below 0 ℃ (for example, -10 ℃ or-30 ℃) is expensive and has few goods sources. At this time, a heating scheme is required to enable the hard disk to work normally.
The existing hard disk temperature heating technology in the market adopts a heating film mode and a heating resistor mode:
(1) by means of heating film
The hard disk needs to be tightly wrapped by the heating film, so that the hard disk is complex to assemble, and the heat dissipation of the hard disk is influenced when the hard disk works in a high-temperature environment.
(2) Mode of heating resistor
The mode of using the heating resistor, because its heating area is far less than the hard disk surface area, receive the influence of heat-conducting medium and can produce the inhomogeneous phenomenon of heating.
Disclosure of Invention
The utility model aims to solve the problems that the hard disk can not normally work at low temperature, the conventional hard disk is not uniformly heated and the high-temperature heat dissipation is unfavorable, and provides a device for heating the hard disk based on a PCB winding wire.
The utility model provides a device for heating a hard disk based on PCB winding, which comprises a PCB, a winding group, a DC-DC power supply conversion circuit, an MCU control chip and a temperature sensor, wherein the winding group is arranged on the upper surface of the PCB;
the winding group is copper sheet wiring;
the winding groups comprise A winding groups uniformly distributed on the surface of the PCB, A power supply outlets arranged at one end of the A winding groups, A grounding outlets arranged at the other end of the A winding groups, B winding groups uniformly distributed on the surface of the PCB, B power supply outlets arranged at one end of the B winding groups and B grounding outlets arranged at the other end of the B winding groups;
the group A power output port and the group B power output port are connected with the DC-DC power conversion circuit, and each section of the group B winding group is arranged on one side of the group A winding group;
the DC-DC power conversion circuit comprises a first interface and a second interface, wherein the first interface is electrically connected with the power output ports of the group A, and the second interface is electrically connected with the power output ports of the group B.
According to the device for heating the hard disk based on the PCB winding, as a preferred mode, the winding groups A and the winding groups B are uniformly arranged in a snake shape, and the winding groups B are wound on the outer side of the winding groups A.
The device for heating the hard disk based on the PCB winding is preferably provided with a serial port display screen electrically connected with the temperature sensor and the MCU control chip.
The device for heating the hard disk based on the PCB winding is used as an optimal mode, and the PCB is placed on a tray of the hard disk.
The PCB is placed at the lower part of the hard disk serving as a computer storage component as a preferred mode.
The device for heating the hard disk based on the PCB winding is characterized in that the PCB is placed in a box of a mobile hard disk as a preferred mode.
The device for heating the hard disk based on the PCB winding is used as a preferred mode, and the PCB is integrated in the hard disk.
The device for heating the hard disk based on the PCB winding is preferably provided with a system power supply for supplying power to the DC-DC power conversion circuit and the MCU control chip.
According to the device for heating the hard disk based on the PCB winding, as a preferred mode, the temperature sensor is arranged at the position corresponding to the center of the winding group.
According to the device for heating the hard disk based on the PCB winding, as a preferred mode, the temperature sensor is a digital temperature sensor.
One end of each of the two groups of windings is grounded, and the other end of each of the two groups of windings is respectively connected with different power outputs. The output of the power supply is controlled by the MCU control chip, the group A can be independently controlled by the MCU control chip to start a conventional heating mode, and the group A and the group B can be simultaneously controlled to start a rapid heating mode. After the heating mode is started, the PCB winding generates heat to conduct the heat to the hard disk tightly installed on the PCB winding, and heating is achieved. The temperature of the hard disk is read by the MCU through the digital temperature sensor in real time, a PID algorithm with high control precision is adopted, the response speed is high, and the heating curve is stable. When the temperature reaches the normal working condition of the hard disk body, the heating is automatically stopped.
The utility model has the following advantages:
(1) the PCB winding type hard disk heating design solves the problems of complex assembly and is beneficial to heat dissipation of the hard disk when working in a high-temperature environment;
(2) the PCB winding type hard disk heating design solves the problem of uneven heating;
(3) the PCB wire-wound hard disk heating design can be designed in a certain block of the whole system; or can be arranged on a hard disk tray; it can also be made in a mobile hard disk box.
(4) The PCB wire-wound hard disk heating design has strong expandability and can be applied to the fields of NAS, server workstations, industrial control equipment, vehicles and ships and other extreme low-temperature environments. And may even be applied to other systems or modules that require heating.
(5) Through PCB wire winding heating, need not heating element, do not increase system area, the component is few, with low costs.
Drawings
FIG. 1 is a schematic structural diagram of a device for heating a hard disk based on a PCB winding;
FIG. 2 is a schematic diagram of a PCB winding for a device for heating a hard disk based on the PCB winding;
FIG. 3 is a graph of heating power versus temperature versus time for a device for heating a hard disk based on PCB windings.
Reference numerals:
1. a PCB; 2. winding; 21. a group of winding groups; 22. group A power supply output ports; 23. group A ground outlet; 24. b group of winding groups; 25. b group power supply output ports; 26. b group of grounding outlets; 3. a DC-DC power conversion circuit; 31. a first interface; 31. a second interface; 4. the MCU control chip; 5. a temperature sensor; 6. a serial port display screen; 7. and (4) a system power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1, a device for heating a hard disk based on a PCB winding comprises a PCB1, a winding set 2 arranged on the upper surface of a PCB1, a DC-DC power conversion circuit 3, an MCU control chip 4 and a temperature sensor 5 arranged on the lower surface of the PCB1, wherein the winding set 2 is electrically connected with the DC-DC power conversion circuit 3, and the temperature sensor 5 is electrically connected with the MCU control chip 4;
the winding group 2 is a copper sheet wire;
the winding group 2 comprises a group A winding group 21 uniformly distributed on the surface of the PCB1, a group A power output port 22 arranged at one end of the group A winding group 21, a group A grounding outlet 23 arranged at the other end of the group A winding group 21, a group B winding group 24 uniformly distributed on the surface of the PCB1, a group B power output port 25 arranged at one end of the group B winding group 24 and a group B grounding outlet 26 arranged at the other end of the group B winding group 24;
the group A power output port 22 and the group B power output port 25 are both connected with the DC-DC power conversion circuit 3, and each section of the group B winding group 24 is arranged on one side of the group A winding group 21;
the DC-DC power conversion circuit 3 includes a first interface 31 and a second interface 32, the first interface 31 is electrically connected to the group a power outlets 22, and the second interface 32 is electrically connected to the group B power outlets 25.
Example 2
As shown in fig. 1-2, a device for heating a hard disk based on a PCB winding comprises a PCB1, a winding group 2 arranged on the upper surface of a PCB1, a DC-DC power conversion circuit 3, an MCU control chip 4, a temperature sensor 5 arranged on the lower surface of the PCB1, a serial display screen 6 electrically connected with the temperature sensor 5 and the MCU control chip 4, and a system power supply 7 connected with the DC-DC power conversion circuit 3 and the MCU control chip 4;
the winding group 2 is electrically connected with the DC-DC power conversion circuit 3, and the temperature sensor 5 is electrically connected with the MCU control chip 4;
the winding group 2 is a copper sheet wire;
the winding group 2 comprises a group A winding group 21 uniformly distributed on the surface of the PCB1, a group A power output port 22 arranged at one end of the group A winding group 21, a group A grounding outlet 23 arranged at the other end of the group A winding group 21, a group B winding group 24 uniformly distributed on the surface of the PCB1, a group B power output port 25 arranged at one end of the group B winding group 24 and a group B grounding outlet 26 arranged at the other end of the group B winding group 24;
the group A power output port 22 and the group B power output port 25 are both connected with the DC-DC power conversion circuit 3, and each section of the group B winding group 24 is arranged on one side of the group A winding group 21;
the DC-DC power conversion circuit 3 comprises a first interface 31 and a second interface 32, wherein the first interface 31 is electrically connected with the group A power output ports 22, and the second interface 32 is electrically connected with the group B power output ports 25;
the A group of winding groups 21 and the B group of winding groups 24 are uniformly arranged in a snake shape, and the B group of winding groups 24 are wound on the outer side of the A group of winding groups 21;
PCB1 is placed on a tray of hard disks, or PCB1 is placed under a hard disk as a computer storage component, or PCB1 is placed in a box of a mobile hard disk, or PCB1 is integrated in a hard disk;
the temperature sensor is arranged at the position corresponding to the center of the winding group 2, and the temperature sensor 5 is a digital temperature sensor.
Example 3
As shown in fig. 1-2, a device for heating a hard disk based on a PCB winding consists of a PCB1, a winding group 2, a DC-DC power conversion circuit 3, an MCU control chip 4, a digital temperature sensor 5, a serial display 6 and a system power supply 7;
the winding group 2 comprises a winding group 21A and a winding group 24B of a PCB;
and the system power supply 7 is used for supplying power to the MCU control chip 4 and the DC-DC power conversion circuit 3. It can be generated by the motherboard or by an external power adapter, depending on the design of the system.
The MCU control chip 4 reads the real-time temperature sensed by the digital temperature sensor 5 through the i1c communication interface. And if the real-time temperature is lower than the temperature for normal operation of the hard disk, performing heating control according to system setting. The heating control is realized by 2 signals of heating control A1, heating control A1 and rapid heating control sent by the MCU.
The digital temperature sensor 5 is a surface-mounted element, is arranged in the center of the back of the PCB winding, is used for reading real-time temperature and is used as a reference parameter for MCU intelligent temperature control.
The DC-DC power conversion circuit 3 is used to provide A, B different voltages to the two sets of PCB windings.
The serial display screen 6 is used for displaying temperature, time and the like.
The PCB1 is placed on a tray of hard disks, or the PCB1 is placed under a hard disk as a computer storage component, or the PCB1 is placed in a box of a portable hard disk, or the PCB1 is integrated in a hard disk.
The MCU control chip 4 of the embodiment adopts STM8 series produced by ST company, and can also adopt MCU or programmable logic array of other company models according to the requirement; the digital temperature sensor 5 selects TI company TMP75C with high precision; the chip of the DC-DC power supply conversion circuit 3 is a common voltage reduction chip, and the output voltage is adjustable through different feedback voltages; the PCB1 is made of conventional FR3 plate and has low cost.
The method of use of examples 1-3 was:
the MCU control chip 4 reads the real-time temperature sensed by the digital temperature sensor 5 through the i2c communication interface. And if the real-time temperature is lower than the temperature for normal operation of the hard disk, performing heating control according to system setting. The heating control is carried out by 3 signals of a heating control A1 signal, a heating control A2 signal and a quick heating control signal sent by the MCU. The heating control tables are shown in tables 1-2. In the table, "√" denotes that there is an output from the power source, "×" denotes that there is no output from the power source, and "W" denotes power watts. For example, in table 1, the column "power output 1", and "√ (3W)" indicate that "power output 1" outputs 3 watts of power. "0" and "1" in the heating control table indicate low and high of the MCU control signal. Table 1 describes that when the rapid heating is turned off, the "power supply output 1" outputs 3 different powers to heat by the MCU controlling the "heating control 1" and the "heating control 2". Table 2 describes that when the rapid heating was turned on, a doubled heating rate was obtained;
TABLE 1 Rapid Heat shut-off
TABLE 2 Rapid Heat on
The digital temperature sensor 5 is a surface-adhered element, is arranged in the middle of the back of the winding group 2, is used for reading real-time temperature and is used as a reference parameter for intelligent temperature control of the MCU;
the DC-DC power conversion circuit 3 is used to provide A, B different voltages to the two sets of PCB windings.
The serial port display screen 6 is used for displaying temperature, time and the like;
table 3 shows the correspondence between the voltage, the current, and the power consumption at the power output 1 actually measured at normal temperature when the rapid heating control is turned off;
TABLE 3 Voltage, Current, Power consumption correspondence
As shown in fig. 3, it can be seen from the graph that the temperature-time curve corresponding to the heating power actually tested at-20 degrees celsius requires about 2.5 minutes for heating from-20 degrees celsius to 0 degree celsius at which the hard disk can operate when the output power is 8.17W. This time can be shortened by about 1 time after the rapid heating is turned on.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a device based on PCB wire winding heating hard disk which characterized in that: the temperature control circuit comprises a PCB (1), a winding set (2) arranged on the upper surface of the PCB (1), a DC-DC power conversion circuit (3), an MCU control chip (4) and a temperature sensor (5) arranged on the lower surface of the PCB (1), wherein the winding set (2) is electrically connected with the DC-DC power conversion circuit (3), and the temperature sensor (5) is electrically connected with the MCU control chip (4);
the winding group (2) is a copper sheet wire;
the winding groups (2) comprise A winding groups (21) uniformly distributed on the surface of the PCB (1), A power supply outlets (22) arranged at one ends of the A winding groups (21), A grounding outlets (23) arranged at the other ends of the A winding groups (21), B winding groups (24) uniformly distributed on the surface of the PCB (1), B power supply outlets (25) arranged at one ends of the B winding groups (24) and B grounding outlets (26) arranged at the other ends of the B winding groups (24);
the group A power output port (22) and the group B power output port (25) are connected with the DC-DC power conversion circuit (3), and each section of the group B winding group (24) is arranged on one side of the group A winding group (21);
the DC-DC power conversion circuit (3) comprises a first interface (31) and a second interface (32), wherein the first interface (31) is electrically connected with the group A power output ports (22), and the second interface (32) is electrically connected with the group B power output ports (25).
2. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the A group of winding groups (21) and the B group of winding groups (24) are uniformly arranged in a snake shape, and the B group of winding groups (24) are wound on the outer side of the A group of winding groups (21).
3. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: and the device also comprises a serial port display screen (6) which is electrically connected with the temperature sensor (5) and the MCU control chip (4).
4. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the PCB (1) is placed on a tray of the hard disk.
5. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the PCB (1) is placed at the lower part of a hard disk as a computer storage component.
6. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the PCB (1) is placed in a box of a mobile hard disk.
7. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the PCB (1) is integrated in a hard disk.
8. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: and the system power supply (7) is connected with the DC-DC power supply conversion circuit (3) and the MCU control chip (4).
9. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the temperature sensor (5) is arranged at the position corresponding to the center of the winding group (2).
10. The device for heating the hard disk based on the PCB winding wire as claimed in claim 1, wherein: the temperature sensor (5) is a digital temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658539.8U CN215496016U (en) | 2021-07-21 | 2021-07-21 | Device based on PCB wire winding heating hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121658539.8U CN215496016U (en) | 2021-07-21 | 2021-07-21 | Device based on PCB wire winding heating hard disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215496016U true CN215496016U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121658539.8U Active CN215496016U (en) | 2021-07-21 | 2021-07-21 | Device based on PCB wire winding heating hard disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215496016U (en) |
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2021
- 2021-07-21 CN CN202121658539.8U patent/CN215496016U/en active Active
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