JP2001250371A - Magnetic recording driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent magnetic heads and a magnetic recording medium from being worn away, to prevent the margin of selection of materials of them from being narrowed without making materials of them to be changed in quality and also to prevent a magnetic recording driving device from becoming inoperative even when there is change in a temperature environment under which it is used. SOLUTION: In this device, a temperature sensor 8 is disposed in the vicinity of the contact part of a magnetic tape 4 and magnetic heads 5a, 5b, a heating means 9 heating the inside of a VTR 1, a cooling means 10 cooling the inside of the VTR 1 and a control circuit 13 which stabilizes the temperature in the inside of the VTR 1 by comparing the temperature information obtained from the temperature sensor 8 and a preliminarily set temperature and by driving the heating means 9 or the cooling means 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording drive. Specifically, by keeping the temperature environment near the contact between the magnetic head and the recording medium within a predetermined set temperature range, wear of the magnetic head or the magnetic recording medium is suppressed, and the material of the magnetic head and the magnetic recording medium is reduced. Without changing the quality of the magnetic recording drive device, and not to stop the operation even if the temperature environment in which the magnetic recording drive device is used changes. Related to technology.

[0002]

2. Description of the Related Art There is a so-called contact type magnetic recording drive device in which a magnetic head is brought into contact with a magnetic recording medium for recording / reproducing a signal.

As such a drive device, there are a magnetic tape drive device using a recording medium as a magnetic tape and a magnetic disk drive device using a recording medium as a magnetic disk. Magnetic tape drive devices include a fixed head type drive device in which a magnetic head is fixed and a rotary drum type drive device in which a magnetic head is mounted on a rotary drum. Flexible magnetic disk devices and hard disk drive devices with hard magnetic disks.

[0004] In any of the magnetic recording drive devices, recording / reproducing is performed by moving the magnetic head relatively to the magnetic recording medium in contact with the magnetic recording medium, and there is always a gap between the magnetic head and the recording medium. , Friction is occurring. Strictly speaking, since the recording medium has minute irregularities, the two repeat contact and separation within a minute gap.

[0005] In a contact type magnetic recording drive device, it is known that when the temperature in the drive is low, wear between the magnetic head and the magnetic recording medium due to friction is remarkable.

In particular, in recent years, a magnetic head sometimes uses a magnetoresistive effect element (MR) in order to improve the detection sensitivity. Such an MR head has low wear resistance, and the problem of wear becomes significant. I have.

[0007] Even in a magnetic recording drive device that is not originally a contact system, for example, a hard disk drive device (HDD), a so-called spacing amount (interval between a magnetic head and a recording medium) is determined from a high recording density.
, And it is allowed to repeat contact microscopically.
The DD is also changing to a contact type magnetic recording drive device.

Further, even in existing HDDs, usually, before the hard disk rotates, the magnetic head is in contact with the hard disk, and when the hard disk rotates, a so-called head slider floats up from the disk surface to adjust a predetermined spacing amount. Since the magnetic head and the disk slide in contact at the beginning of rotation,
There is a problem of wear.

To solve such a problem, Japanese Patent Laid-Open No.
A magnetic tape drive device as shown in JP-A-159425 has also been developed.

In this magnetic tape drive device, a temperature sensor and a thermoelectric conversion element as a heat source are provided on a stator drum of a rotary drum.

Thus, the temperature of the stator-side drum can be kept constant, and the temperatures of the magnetic head and the magnetic tape running in contact with it can be increased. It is intended to solve the problem of wear of the magnetic tape.

[0012]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No.
In a magnetic tape drive as shown in JP-A-159425, the temperature of the magnetic head and the magnetic tape immediately rises even if the temperature of the stator-side drum is increased while the temperature in the magnetic tape drive is low. Without these conditions, the two members rub together at a low temperature, and the above-mentioned problem of abrasion could not be effectively solved.

That is, the magnetic head is provided on the rotor-side drum, and the temperature of the magnetic head cannot be raised immediately even if a thermoelectric exchange element as a heat source is provided on the stator-side drive. In addition, the contact between the magnetic tape and the magnetic head is performed immediately after the magnetic tape is wound around the rotating drum, so that the temperature of the magnetic tape does not rise immediately, but eventually the two come into contact at a low temperature, and the magnetic tape contacts the magnetic head. Since the head slides on the magnetic tape, the above problem of wear cannot be solved.

In order to raise the temperatures of the magnetic head and the magnetic tape as early as possible, the temperature of the stator side drum must be set to a considerably high level.
The magnetic head and the magnetic tape must be exposed to a high temperature, and the rate of temperature change thereof is large. Therefore, it is expected that the magnetic head and the magnetic tape will be greatly damaged and their materials will be deteriorated.

Further, as in a video camera,
For example, the magnetic head and the magnetic tape of the magnetic recording drive device used for such a video camera may be used in a low temperature environment, in consideration of being used in a low temperature environment. It is necessary to select a material that does not cause the above-mentioned problem of wear even at a low temperature, and may sacrifice other performances, for example, electromagnetic conversion characteristics.There is also a problem that the room for selecting these materials is narrowed. Was.

Furthermore, in a magnetic recording drive device used at a low temperature, such as the video camera described above, when the device is brought into a room, the temperature change of the device may cause dew condensation in each part and mechanism. There is. When the magnetic recording medium is a magnetic tape, so-called jamming occurs, the operation of the magnetic recording drive itself is usually stopped. When the recording drive device is used indoors, there is also a problem that the recording drive device cannot be used until dew condensation at each part is eliminated.

Therefore, the magnetic recording drive device of the present invention
Even when placed in a low-temperature environment, the wear of the magnetic head and the magnetic recording medium is small, and the materials of the magnetic head and the recording medium are not deteriorated. It is another object of the present invention to prevent the operation of the magnetic recording drive device from being stopped even if the temperature environment in which the magnetic recording drive device is used changes.

[0018]

In order to solve the above-mentioned problems, a magnetic recording drive according to the present invention comprises a temperature sensor disposed near a contact portion between a magnetic recording medium and a magnetic head; Heating means, a cooling means for cooling the inside of the magnetic recording drive, and comparing the temperature information obtained from the temperature sensor with a preset temperature, and driving the heating means or the cooling means. And a control circuit for stabilizing the temperature in the magnetic recording drive.

Therefore, in the magnetic recording drive of the present invention, the temperature inside the magnetic recording drive can be kept within the set temperature range, even if it is used in any temperature environment. It is possible to prevent the occasional wear of the magnetic head and the magnetic tape and the occurrence of dew condensation due to a change in the outside air temperature, and to further increase the degree of freedom in selecting the material of the magnetic head and the material of the magnetic recording medium.

That is, the magnetic recording drive device of the present invention can keep the entire inside thereof within the set temperature range, and does not slide in a state where the magnetic head and the magnetic recording medium are in contact at a low temperature. Wear due to friction between the two can be reduced.

Further, unlike a system in which the temperature of the magnetic head and the magnetic recording medium is rapidly heated or cooled, the temperature of the magnetic head and the magnetic recording medium are suddenly changed because the temperature is gradually heated or cooled. Since there is no such thing, the material is not deteriorated.

Further, in a camera such as a video camera used in various situations such as outdoors and indoors, for example,
When an object used in a low-temperature environment is brought into a room, condensation may occur in the internal mechanism.However, in the present invention, magnetic recording is performed in advance even in a state where the device is used in a low-temperature environment. Since the inside of the drive device is maintained at a constant temperature, even when the magnetic recording drive device is brought into a room, there is no dew condensation, and it is possible to prevent a situation in which the magnetic recording drive device does not operate due to dew condensation,
Since the magnetic head does not come into contact with the magnetic recording medium at a temperature outside the set temperature range, there is no need to consider that the magnetic recording medium will be used at a low temperature. Room can be widened.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the embodiments shown in the accompanying drawings.

FIGS. 1 and 2 show a first embodiment in which the present invention is applied to a video tape recorder (hereinafter, VTR) of a helical scan system which is an example of a magnetic tape drive.

As shown in FIG. 1, the VTR 1 has a rotating drum 3 in a housing 2 and magnetic heads 5a and 5b for recording and reproducing on a magnetic tape 4 are provided on the rotating drum 3, for example, 180. ° It is located at a distance. The magnetic heads 5a and 5b are provided with a magnetoresistive effect (MR effect: Magneto Resistiv
A so-called MR head is used in which an element is used as a magnetic sensing part, a change in magnetism on a magnetic tape is replaced with a change in resistance of an MR film, and this is taken out as a change in current.

Then, a tape cassette 6 is attached to the VTR 1.
Is loaded, the magnetic tape 4 in the tape cassette 6 is pulled out by the loading posts 7a and 7b of the tape loading mechanism (not shown), and a predetermined tape path as shown is formed. The magnetic head 5 is wound around the rotary drum 3 and
a and 5b.

The rotating drum 3 includes a stator-side drum and a rotor-side drum. The stator-side drum is provided with the magnetic heads 5a and 5b, and the rotating drum 3 is directly connected to a drive motor (not shown). The rotation of the drive motor rotates the rotor-side drum, and the magnetic heads 5a and 5b rotate.

The magnetic tape 4 on which a predetermined tape path is formed is run in a fixed direction by a tape running mechanism (pinch roller, capstan, etc.) (not shown), whereby the magnetic heads 5a and 5b On the other hand, helical scan is performed.

A temperature sensor 8 is provided in the vicinity of the rotary drum 3 and outside the tape path, so that the temperature in the vicinity of the rotary drum 3 in the casing 2 of the VTR 1 is detected. .

The housing 2 is provided with a heating means 9 for heating the inside of the housing 2 and a cooling means 10 for cooling.

The heating means 9 is composed of a thermoelectric conversion element such as a Peltier element or a Peltier element, which can easily change the amount of heat generated by current control or voltage control. ing.

The cooling means 10 includes, for example, a cooling fan 11
And a thermoelectric conversion element such as a Peltier element 12 whose cooling efficiency can be easily varied by current control or voltage control similarly to the heating means 9. Cooling means 10
As two means (the cooling fan 11 and the Peltier device 1).
Although 2) has been described, if the cooling effect is sufficient, only the cooling fan 11 may be used. Further, when the cooling means 10 is a cooling fan 11, the temperature may be controlled by changing the number of rotations of the fan, or ON-OFF of the rotation may be performed.
May control the temperature.

The heating means 9 and the cooling means 10 are controlled by a control circuit 13. That is, the control circuit 1
Reference numeral 3 denotes a temperature comparison unit 14 and current control units 15a and 15b, one of the two current control units 15a and 15b.
a is for the heating means 9, 15 a is for the cooling means 10, and the temperature information detected by the temperature sensor 8 is stored in the control circuit 1.
3 and the temperature information and a temperature range previously set in the temperature comparison unit 14 (hereinafter, referred to as “set temperature range”).
To control the current control units 15a and 15b. The set temperature range is set, for example, to 5 ° C to 60 ° C.

According to the experiment conducted by the applicant, when the temperature in the magnetic recording drive is 5 ° C. or lower, the wear of the magnetic head is several times larger than that at room temperature (25 ° C.). Was. Further, it was found that the relationship between the temperature change and the amount of wear was not proportional, but the amount of wear significantly increased at a temperature of about 5 ° C. or lower. Incidentally, in the results of the experiment performed at a high temperature of 60 ° C. and at a room temperature, no difference was observed in the wear amount between the two.

For example, when the temperature information detected by the temperature sensor 8 is higher than the temperature preset in the comparator 14, the cooling means 10 is driven by the current control unit 15b for the cooling means 10 to Cool the temperature into 2.
If the temperature information detected by the temperature sensor 8 is lower than the set temperature, the current control unit 15a for the heating unit 9
Drives the heating means 9 to heat the inside of the housing 2.

As a result, the inside of the casing 2 of the VTR 1 is kept within the set temperature range, and recording / reproducing on / from the magnetic tape 4 is performed by the magnetic heads 5a and 5b under a substantially constant temperature condition.

When the temperature inside the casing 2 of the VTR 1 deviates from the set temperature range, the respective mechanisms are controlled as follows to slide the magnetic heads 5a, 5b and the magnetic tape 4 in a contact state. Is avoided.

If the temperature inside the casing 2 has already deviated from the set temperature when the tape cassette 6 is loaded into the VTR 1, the tape loading mechanism is not operated and the tape path is not formed. Has become. This allows
The magnetic heads 5a and 5b do not come into contact with the magnetic tape 4, so that friction does not occur between them and there is no problem of wear. In this state, the rotary drum 3 is not rotating, and the tape running mechanism is not operating.

If the temperature inside the housing 2 deviates from the set temperature range during recording / reproduction, the drive motor of the rotary drum 3 and / or the tape running mechanism is stopped. As a result, even if the magnetic heads 5a and 5b and the magnetic tape 4 are in contact with each other, they do not move, so that friction does not occur and there is no problem of wear. Further, the tape loading mechanism may be operated to unload the magnetic tape 4. Furthermore, instead of completely unloading the magnetic tape 4, the magnetic tape 4
May be slightly separated from each other. In this way, when the temperature in the housing 2 is within the set range by the heating means 9 or the cooling means 10, the operation (recording / recording) of the VTR 1 is performed.
Playback) can be quickly performed.

Avoidance of sliding in the state of contact between the magnetic heads 5a and 5b and the magnetic tape 4 by each mechanism of the VTR 1 during recording / reproducing is performed for a predetermined time after the temperature in the housing 2 deviates from the set temperature. It may be performed after the lapse of time, or the set temperature may be set in two stages.

In the former case, if the temperature in the housing 2 returns to the set temperature range by driving the heating means 9 or the cooling means 10 after the temperature has deviated from the set temperature, the magnetic heads 5a, 5a
It is not necessary to avoid contact between b and the magnetic tape 4. However, if the state of deviating from the set temperature range continues for a long time, abrasion between the two becomes a problem. Therefore, the magnetic heads 5a and 5b and the magnetic tape
To avoid sliding.

In the latter case, two set temperature ranges, that is, a first set temperature range and a second set temperature range including and wider than the first set temperature range, are set in advance, and the first set temperature range is set. When the temperature deviates from the set temperature range, the heating means 9 or the cooling means 10 is driven to prevent the magnetic heads 5a and 5b from sliding with the magnetic tape 4 when the temperature deviates from the second temperature range. .

In any case, the magnetic heads 5a,
When the sliding between the magnetic tape 5b and the magnetic tape 4 is avoided, the operation of the VTR 1 can be returned at an early stage by increasing the capacity of the heating means 9 or the cooling means 10.

Thus, according to the VTR 1, the housing 2
The inside of the VTR 1 can be kept at a substantially constant temperature, the inside of the VTR 1 does not become low or high, and the above-mentioned problem of abrasion generated between the magnetic heads 5a and 5b and the magnetic tape 4 does not occur. .

For example, in the case of a VTR camera which is often used outdoors, the inside of the VTR 1 is kept at a constant temperature even when the outside air is low. In addition, there is no condensation on the rotating drum 3, and no so-called jamming of the magnetic tape 4 occurs. Usually, such a VTR camera is provided with a dew condensation sensor. When the dew condensation is detected, the VTR camera itself does not operate. However, by implementing the present invention, such a change in the temperature environment can be achieved. In this case, no dew condensation occurs, so that a situation in which the VTR camera stops operating can be prevented.

Further, in the VTR 1, since the magnetic heads 5a, 5b and the magnetic tape 4 are not directly or closely heated or cooled, they are locally and instantly heated or cooled. In addition, the material does not deteriorate due to a sudden change in temperature, and their durability does not deteriorate.

FIG. 3 shows a second embodiment in which the present invention is applied to a flexible magnetic disk drive (hereinafter, FDD) which is an example of a magnetic disk drive.

The FDD 1A is, as shown in FIG.
6, a disk rotation drive mechanism 17 is provided, and a magnetic disk 18 is mounted on the disk rotation drive mechanism 17 and is rotated at a predetermined rotation speed.

A magnetic head 19 for recording / reproducing on / from the magnetic disk 18 is supported by a movable member of a head transfer mechanism 20 via a head arm 21, whereby the magnetic head 19 moves in the radial direction of the magnetic disk 18. It is arranged movably. Incidentally, the magnetic head 19 is also used for the VTR.
An MR head is employed similarly to the first magnetic heads 5a and 5b.

When the disk cartridge 22 is loaded in the FDD 1A, the magnetic disk 18 is chucked by the disk rotation drive mechanism 17, and the movable member of the head transfer mechanism 20 can be moved. Also, when the disk rotation drive mechanism 17 is driven, the magnetic disk 18 is rotated, and the head landing causes the magnetic head 19 to land on the magnetic disk 18 to perform recording / reproduction.

At this time, the magnetic head 19 slides in contact with the magnetic disk 18.

The vicinity of the magnetic disk 18 chucked by the disk rotation drive mechanism 17 and the magnetic head 1
A temperature sensor 23 is provided in the vicinity of the movement trajectory 9 to detect the temperature in the vicinity of the magnetic disk 18 in the housing 16 of the FDD 1A.

The housing 16 is provided with a heating unit 24 for heating the inside of the housing 16 and a cooling unit 25 for cooling. The heating means 24, the cooling means 25, and the control circuit 13 for controlling them are the same as those of the first embodiment.
It is the same as that of the embodiment.

As a result, the inside of the housing 16 of the FDD 1A is maintained within the above set temperature range (5 ° C. to 60 ° C.), and recording / reproducing to / from the magnetic disk 18 by the magnetic head 19 is performed under substantially constant temperature conditions. Done.

When the temperature in the housing 16 of the FDD 1A deviates from the set temperature, each mechanism is controlled as described below to prevent the magnetic head 19 and the magnetic disk 18 from sliding in a contact state. You.

When the temperature inside the housing 16 has already deviated from the set temperature range when the disk cartridge 22 is loaded in the FDD 1A, head loading is performed without operating the head transfer mechanism 20. Absent. As a result, the magnetic head 19 does not come into contact with the magnetic disk 18, and the problem of wear between the magnetic head 19 and the magnetic disk 18 does not occur. In this state, the disk rotation drive mechanism 17 is not rotating.

If the temperature inside the casing 16 deviates from the set temperature range during recording / reproduction, the disk rotation drive mechanism 17 is stopped. As a result, even if the magnetic head 19 and the magnetic disk 18 are in contact with each other, they do not move, so that no friction occurs and no problem of wear occurs. Further, the magnetic head 19 may be unloaded by operating the head transfer mechanism 20. Further, the head transfer mechanism 2
In the case where a head landing mechanism is provided as a mechanism different from 0, the magnetic head 19 may be taken off (head unloading) by the head landing mechanism. By doing so, the magnetic head 19 can be floated from the magnetic disk 18 without changing the position of the magnetic head 19 in the radial direction with respect to the magnetic disk 18, and the temperature inside the housing 16 can be increased by the heating means 24 or the cooling means 25. Is within the setting range, the operation of the FDD 1A (recording /
Playback) can be quickly performed.

Avoidance of sliding in the state of contact between the magnetic head 19 and the magnetic disk 18 by each mechanism of the FDD 1A at the time of recording / reproducing is performed after a predetermined time elapses after the temperature in the housing 16 deviates from the set temperature. The control may be performed, or the set temperature may be set in two stages, and such control can be performed in the same manner as that described in the first embodiment.

According to the FDD 1A, the inside of the housing 16 can be maintained at a substantially constant temperature.
The inside will not be cold or hot,
The above-mentioned problem of abrasion generated between the magnetic head 19 and the magnetic disk 18 does not occur.

In the FDD 1A, since the magnetic head 19 and the magnetic disk 18 are not directly or closely heated or cooled, they are locally and instantly heated or cooled. In addition, the material does not deteriorate due to a sudden change in temperature, and the durability does not deteriorate.

In the first embodiment, the magnetic head is applied to a so-called rotary head mounted on a rotary drum. However, the present invention is not limited to this. It can also be applied.

In the second embodiment,
The description has been given of the case where the magnetic recording medium is applied to a magnetic disk drive device using a flexible magnetic disk (FD). However, the present invention is not limited to this. It may be a so-called contact type magnetic recording drive device. In the case of HDD,
When the magnetic disk is stopped, the magnetic head is in contact at a predetermined position, and for example, a DLC (Diamond Lid) is used to reduce the wear of the magnetic head at the contact portion.
It is embedded in a contact pad formed by, for example, ke carbon.

Further, the specific shape and structure of each part shown in each of the above-described embodiments are merely examples of the embodiment for carrying out the present invention, and the technology of the present invention will be described below. The scope should not be construed as limiting.

[0064]

As described above, the magnetic recording drive of the present invention is a magnetic recording drive for recording / reproducing a signal by bringing a magnetic head into contact with a magnetic recording medium. A temperature sensor disposed in the vicinity of a contact portion between the magnetic head and the magnetic head; heating means for heating the inside of the magnetic recording drive; cooling means for cooling the inside of the magnetic recording drive; and a temperature obtained from the temperature sensor. A control circuit is provided for comparing the information with a preset temperature and for driving the heating means or the cooling means to stabilize the temperature in the magnetic recording drive.

Therefore, in the magnetic recording drive of the present invention, the temperature inside the magnetic recording drive can be kept within the set temperature range, even if the magnetic recording drive is used in any temperature environment. It is possible to prevent the occasional wear of the magnetic head and the magnetic tape and the occurrence of dew condensation due to a change in the outside air temperature, and to further increase the degree of freedom in selecting the material of the magnetic head and the material of the magnetic recording medium.

That is, the magnetic recording drive of the present invention can keep the entire inside thereof within the set temperature range, and does not slide in a state where the magnetic head and the magnetic recording medium are in contact at a low temperature. Wear due to friction between the two can be reduced.

Further, unlike the method in which the temperature of the magnetic head or the magnetic recording medium is rapidly heated or cooled, the temperature of the magnetic head or the magnetic recording medium is rapidly changed. Since there is no such thing, the material is not deteriorated.

In the case of a video camera used in various situations such as outdoors and indoors, for example,
When an object used in a low-temperature environment is brought into a room, condensation may occur in the internal mechanism.However, in the present invention, magnetic recording is performed in advance even in a state where the device is used in a low-temperature environment. Since the inside of the drive device is maintained at a constant temperature, even when the magnetic recording drive device is brought into a room, there is no dew condensation, and it is possible to prevent a situation in which the magnetic recording drive device does not operate due to dew condensation,
Since the magnetic head does not come into contact with the magnetic recording medium at a temperature outside the set temperature range, there is no need to consider that the magnetic recording medium will be used at a low temperature. Room can be widened.

According to the second aspect of the present invention, since the magnetic recording medium is a magnetic tape, it can be applied to a magnetic tape drive, and in particular, the problem of dew condensation can be avoided.

According to the third aspect of the present invention, when the temperature in the magnetic tape drive device is out of the set temperature range, the magnetic tape is not loaded or the magnetic tape is unloaded. The magnetic head and the magnetic tape do not come into contact with each other, and there is no problem of wear.

According to the present invention, when the temperature in the magnetic tape drive device is out of the set temperature range, the rotation of the rotary drum is not performed or the rotation of the rotary drum is stopped. Since the magnetic head and the magnetic tape do not slide in contact with each other, there is no problem of wear.

According to the fifth aspect of the invention, when the temperature in the magnetic tape drive device is out of the set temperature range, the magnetic tape is not driven or the magnetic tape is stopped. Since the magnetic head and the magnetic tape do not slide in contact with each other, there is no problem of wear.

According to the invention of claim 6, since the magnetic recording medium is a magnetic disk, it can be applied to a magnetic disk drive device. In particular, since the mainstream of the magnetic head is an MR head, The problem of wear can be solved.

According to the present invention, when the temperature in the magnetic disk drive device is out of the set temperature range, the magnetic head is not loaded or the magnetic head is unloaded. Since the magnetic head and the magnetic tape do not slide in contact with each other, there is no problem of wear.

According to the present invention, when the temperature in the magnetic disk drive device falls outside the set temperature range, the rotation of the disk rotation drive mechanism is not performed or the rotation of the disk rotation drive mechanism is stopped. As a result, the magnetic head and the magnetic tape do not slide in contact with each other, and the problem of wear does not occur.

According to the ninth aspect of the present invention, when the temperature in the magnetic disk drive device is out of the set temperature range, the magnetic head is not landed or the magnetic head is taken off. The magnetic head and the magnetic tape do not slide in contact with each other, and there is no problem of wear.

[Brief description of the drawings]

FIG. 1 shows a first embodiment in which the magnetic recording drive of the present invention is applied to a magnetic tape drive together with FIG. 2, and FIG. 1 is a schematic plan view.

FIG. 2 is a block diagram of a control circuit.

FIG. 3 is a schematic plan view showing a second embodiment in which the magnetic recording drive of the present invention is applied to a magnetic disk drive.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... VTR (magnetic recording drive device), 3 ... rotating drum, 4 ... magnetic tape (magnetic recording medium), 5a, 5b ... magnetic head, 8 ... temperature sensor, 9 ... heating means, 10 ... cooling means, 11 ... Cooling fan, 12 ... Peltier element, 13 ...
Control circuit, 1A... FDD (magnetic recording drive), 1
7: Disk rotation drive mechanism, 18: Magnetic disk, 19
... magnetic head, 23 ... temperature sensor, 24 ... heating means, 2
5. Cooling means

Claims (9)

[Claims] 1. A magnetic recording drive device for recording / reproducing a signal by bringing a magnetic head into contact with a magnetic recording medium, comprising: a temperature disposed near a contact portion between the magnetic recording medium and the magnetic head. A sensor, a heating means for heating the inside of the magnetic recording drive, a cooling means for cooling the inside of the magnetic recording drive, and comparing the temperature information obtained from the temperature sensor with a preset temperature. And a control circuit for driving the heating means or the cooling means to stabilize the temperature in the magnetic recording drive. 2. The magnetic recording drive device according to claim 1, wherein the magnetic recording medium is a magnetic tape. 3. The magnetic recording drive device according to claim 2, wherein when the temperature inside the magnetic recording drive device is out of a set temperature range, loading of the magnetic tape is not performed or unloading of the magnetic tape is performed. A magnetic recording drive device characterized by performing the following. 4. The magnetic recording drive device according to claim 2, wherein when the temperature inside the magnetic recording drive device is out of a set temperature range, the rotation of the rotating drum is not performed or the rotation of the rotating drum is stopped. A magnetic recording drive device, wherein the drive is stopped. 5. The magnetic recording drive device according to claim 2, wherein when the temperature inside the magnetic recording drive device is out of a set temperature range, the magnetic tape is not driven or the magnetic tape is not driven. A magnetic recording drive device, wherein the drive is stopped. 6. The magnetic recording drive device according to claim 1, wherein the magnetic recording medium is a magnetic disk. 7. The magnetic recording drive device according to claim 6, wherein when the temperature in the magnetic recording drive device is out of a set temperature range, the magnetic head is not loaded or the magnetic head is unloaded. A magnetic recording drive device characterized by performing the following. 8. The magnetic recording drive device according to claim 6, wherein when the temperature inside the magnetic recording drive device is out of a set temperature range, the disk rotation drive mechanism is not rotated or the disk rotation drive is not performed. A magnetic recording drive device wherein rotation of a mechanism is stopped. 9. The magnetic recording drive device according to claim 6, wherein when the temperature in the magnetic recording drive device is out of a set temperature range, landing of the magnetic head is not performed or take-off of the magnetic head is not performed. A magnetic recording drive device characterized in that: