JPH11204958A - Power source device and recording equipment using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power source device, in which any stress that exceeds the breaking stress for mounted components is not generated when an impact is applied, by enlarging radius of curvature of the substrate deformation while allowing a mounting substrate to be deformed by an appropriate amount, and a piece of recording equipment using the power source device. SOLUTION: In a power source having a mounting substrate 20 on which a transformer 10 is mounted, the mounting substrate 20 is enclosed by top and bottom cases, 13a and 14a, which are provided with bosses 13a and 14a, and screws 21, which fasten the substrate 20 immobile in the direction parallel to the mounting plane of the mounting substrate 20, and ribs 13b, 13b 14b and 14b, which, for an impact load applied in the direction approximately normal to the mounting plane, allow the mounting substrate 20 to be deformed up to a specified set of amounts, g1-g4, restricting the deformation within the specified limits, and absorb the impact by dispersing the load.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a power supply device suitable as an AC adapter and a recording apparatus using the power supply device.

[0002]

2. Description of the Related Art Small-sized electronic devices such as recording devices have different power supply voltages in different countries, so that it is necessary to provide a combined power supply device at the destination. For small electronic devices such as a recording device, an AC adapter that is detachable from the electronic device is often used as a power supply device because of easy production control.
This is in response to changes in the market.
This is because the adapter is packed instantly and can be shipped to the destination. At this time, there is a tendency that the AC adapter is not attached to the main body of the apparatus and the apparatus is packed together.

On the other hand, a switching type power supply has advantages in that it can be made smaller and lighter than a dropper type power supply, and has a higher conversion efficiency. Widely used for built-in power supply or AC adapter. As a result of the widespread use of the switching-type power supply device, various small and lightweight electronic devices can be easily carried by women and children, and their industrial contribution is highly evaluated.

Referring to the drawings, the transformer mounted on the substrate of such a switching type power supply device will be briefly described. In the front view of FIG. 8, a coil 103 is wound around a bobbin 102 and a core 101 is formed. After being inserted into the opening of the bobbin 102, the illustrated portion is fixed with an adhesive to obtain a finished product.

[0005] In the above configuration, the transformer 100 is configured to be relatively flat so as to contribute to reduction in size and weight after being mounted on a board.

However, when such a small and lightweight power supply device is used as the AC adapter as described above, the user unpacks the package, attaches the AC adapter to the main body of the electronic device, or carries the AC adapter. A new problem has arisen that the device is exposed to an excessive impact load due to improper handling on the way.

If the transformer 100 is configured as a small and lightweight AC adapter for use on a desk and used as a built-in power supply, the power supply cord is hooked during use and the power supply is There is a problem that a new countermeasure for withstanding an excessive impact load is required in anticipation of an accident such as a fall from the vehicle.

[0008] When the impact load acts as described above, the power supply device side includes various electronic components constituting the power supply device.
It has been found that excessive impact loads concentrate on relatively heavy transformers.

As shown in FIG. 8, when the external force acts on the mounting board 50 as shown in FIG. 8, the transformer becomes severe. That is, when the external force acts, the moment in the arrow M direction acts on the transformer 100. At this time, a sharp pulling force acts on the thin portion 102a on one side of the bobbin 102 fixed to the pattern portion of the substrate 50 by soldering by the secondary lead pin 12 of the transformer 100, and as a result, the thin portion It is known that a breaking phenomenon of a transformer that breaks from 102a occurs.

Therefore, as a measure for preventing such breakage,
As shown in FIG. 9, in order to improve the breaking strength of the bobbin 102, a thinner portion 102a integrally formed from both sides of the bobbin winding part of the coil 103 is subjected to C chamfering to take a reinforcing measure.

Alternatively, as disclosed in JP-A-6-96965 and JP-A-6-163278, the transformer body is housed in an outer case that holds the entire transformer, and the gap is filled with resin. Fixing methods have been proposed.

According to Japanese Patent Application Laid-Open No. Hei 9-214156, a rib is interposed between heat radiating plates which are board-mounted components, so that the rib does not deform the substrate beyond its limit when dropped. Improvements were made.

Further, in many cases, the accommodating means of the power supply device is composed of an upper case body and a lower case body which are vertically divided with a substrate interposed therebetween, and extend from the upper case body and the lower case body respectively. The shaped part keeps the substrate in a horizontal and vertical direction.

In the sectional view of FIG. 7, this figure shows an example of a conventional substrate holding structure.
Upper and lower cases of the adapter, 220 is a substrate held by the case, 221 is an upper case 213 and a lower case 2
14 is a screw for fastening, 100 is a transformer, 22
Reference numerals 2 and 223 denote heat radiating plates, and 225 denotes an aluminum electrolytic capacitor. Each radiator plate is configured such that a heat-generating component, for example, a power transistor, an FET, a diode, or the like is fastened by a screw.

The substrate 220 is fixed in a contact state by a rib 213b which is a shape portion formed continuously from the upper case 213, and a rib 214b is similarly formed continuously on the lower case 214. By holding the bottom surface of the substrate 220 in a contact state, the substrate 220 withstands an impact load including a drop and prevents the substrate 220 from being deformed and broken.

[0016]

However, according to the conventional structure described with reference to FIG. 7, it is necessary to provide a large number of members typified by ribs provided inside the case in order to restrain the deformation of the substrate 220 as necessary. However, as a result, there were the following problems.

(A) Changes in the thickness of the upper and lower cases and the flow of molten metal on the molding become large, which affects the quality of the case.

(B) Variations in the rib height accuracy cause variations in the contact state with the substrate, and there is a problem that some ribs do not fulfill the holding function. Also, if the rib is in contact with the substrate in a state where it protrudes from the others, concentrated stress is applied to the substrate, and the portion may be broken.

(C) When the number of holding parts by the ribs is increased, the deformation of the substrate due to the impact load is reduced as much as possible, but the impact load obtained from the weight of the mounted component applied to the substrate itself × the acceleration does not change at all. For this reason, there is a problem that the load is concentrated on the soldered portion, which is the fixing portion between the substrate and the mounted component, causing land peeling or solder cohesion failure. This tendency is remarkable in a heavy transformer.

Accordingly, the present invention has been made in view of the above-mentioned problems, and when an impact load is applied, the radius of curvature of the substrate in the deformation of the substrate is increased to appropriately deform the substrate, and It is an object of the present invention to provide a power supply device that does not generate a stress equal to or greater than a breaking stress on a mounted component and a recording device using the same.

In addition, the recording apparatus requires a power source, and in many cases, an AC adapter is used as a power source in order to reduce the size of the main body and to use the main body in common, especially for office use and desktop use. In such a case, there are many accidents of dropping during handling due to wiring routing or downsizing of the AC adapter.

Another object of the present invention is to cope with a common body and a common power supply for simplifying foreign specification management of a recording apparatus including an ink jet printer.

[0023]

Means for Solving the Problems In order to achieve the above object and to solve the problems, the present invention provides a power supply device having a mounting board on which a transformer is mounted, in a direction parallel to a mounting surface of the mounting board. For a fixed portion to be fixed in an immovable state, and for a shocking load in a direction substantially perpendicular to the mounting surface, the mounting board is displaced by a predetermined amount to absorb a shock and to displace a displacement equal to or more than the predetermined amount. The mounting board is incorporated in a housing means having a defining portion for regulating and dispersing the load.

[0024] Further, the accommodating means comprises an upper case body and a lower case body which are vertically divided with respect to the mounting board, and the fixing portions extend from the upper case body and the lower case body, respectively. And a shape portion extending from the upper case body and the lower case body so that the predetermined portion is separated from the mounting board by the predetermined amount and infiltrates between mounting components including the transformer. It is characterized by being formed as.

Further, the housing means is constituted by an upper case body and a lower case body which are vertically divided with the mounting board interposed therebetween, and wherein the fixing portions are respectively extended from the upper case body and the lower case body. The defining portion is arranged such that a component end of a mounting component including the transformer and a lead end of a component mounting lead are separated from the inner surface portions of the upper case body and the lower case body by the predetermined amount. It is characterized by having been constituted.

Further, the mounting component includes a heat sink.

Further, the mounting board is further provided with a dummy land portion formed integrally or independently of the mounting pattern, and the rigidity is enhanced by strengthening the board surface strength by solder coating by flow or reflow. .

Further, in the power supply device having a mounting board on which the transformer is mounted, a fixing portion fixed in an immovable state in a direction parallel to the mounting surface of the mounting board, and a shock-absorbing member in a direction substantially perpendicular to the mounting surface. With respect to the load, the mounting board absorbs an impact by displacing the mounting substrate by a predetermined amount, and defines a displacement equal to or more than the predetermined amount and disperses the load. It is characterized in that a substrate is built in, the accommodating means is detachably provided in a power supply accommodating section of the recording apparatus, and a connecting means for mechanically and electrically connecting the accommodating means is provided.

Further, the accommodating means, which is provided detachably with respect to a power supply accommodating section of the recording apparatus, comprises an upper case body and a lower case body which are vertically divided with respect to the mounting board. Extending from the upper case body and the lower case body, respectively, the upper case so that the predetermined amount is separated from the mounting board by the predetermined amount, and sneaks between mounting parts including the transformer. It is characterized in that it is formed as a shape part extending from the body and the lower case body, respectively.

Further, the accommodating means provided detachably with respect to the power supply accommodating section of the recording apparatus comprises an upper case body and a lower case body which are vertically divided with the mounting board therebetween. Extending from the upper case body and the lower case body, and defining the defining portion from the inner surface portion of the upper case body and the lower case body to a component end of a mounted component including the transformer and a component mounting part. The lead ends of the leads are separated from each other by the predetermined amount.

Further, the mounting component detachably provided to the power storage section of the recording apparatus includes a heat radiating plate.

[0032] In the mounting board incorporated in the accommodating means detachably provided to the power supply accommodating section of the recording apparatus, a dummy land portion integrally or independently formed with a mounting pattern is further provided. It is characterized by enhancing the rigidity by strengthening the substrate surface strength by solder coating.

The recording apparatus is characterized in that it comprises an ink jet recording head for performing recording by discharging ink from the recording head, and is integrated with the recording apparatus by attaching an AC adapter.

[0034] The recording head is a recording head that discharges ink using thermal energy, and is characterized in that it has a thermal energy converter for generating thermal energy to be applied to the ink.

[0035]

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

FIG. 1 is a cross-sectional view of a main part of a first embodiment of the present invention.
Numeral 0 denotes an injection molding of a predetermined resin material to form an AC adapter as a power supply device so as to have the shape shown in the figure, and the upper and lower cases 13 and 14 are connected via a substrate as shown in the figure. Boss 13 for screwing
a, 14a, 13a, and 14a are provided, respectively.
Are fixed in the horizontal direction in a stationary state.

When the substrate 20 is deformed under an impact load or the like, a rib 13b serving as a stopper serving as a stopper serving as a stopper serving as a restricting portion for limiting deformation is provided in order to prevent excessive deformation leading to its destruction. 13b, 14b, 14
b is also integrally formed.

Upper and lower case body 1 prepared as described above
3 and 14 are integrated by fixing them with screws 21 and 21 that fasten the substrate 20 therebetween. Among the mounted components, the heavy transformer 10 is mounted such that the primary side pins 11 and the secondary side pins 12 are along the longitudinal direction of the board 20 as shown in the figure.

A radiator plate 22 mounted on the substrate 20,
Reference numeral 23 denotes a heat generating component such as a power transistor,
While the FET, the diode and the like are fixed by screws, the fixing terminals 22a, 22b, 23a and 23b are passed through through holes formed in the substrate 20 as necessary, and then the land pattern portion is soldered or the like. To secure mechanical strength. An aluminum electrolytic capacitor 2 is provided between these heat sinks 22 and 23.
5 is mounted with leads 25a and 25b soldered as shown.

In the above configuration example, the ribs 13b and 14b
The height of the end of the rib is set so that the gaps g1, g2, g3, and g4 are provided as shown in the figure between the end of the rib and the front and back surfaces of the substrate 20.

By providing the gap as described above, for example, when the power supply device is used as the above-described AC adapter and receives an impact load due to a fall accident or the like, the substrate 20 is temporarily bent upward in the drawing. Even if you do
When the displacement amount becomes g1, g2, the rib 13
b, 13b, further deformation is prevented,
Substrate destruction is prevented.

When the AC adapter receives an impact in a direction opposite to that described above, and the substrate 20 is deformed in the opposite direction, the AC adapter comes into contact with the ribs 14b, 14b of the stopper, thereby similarly preventing deformation and destruction. Will be done. In this case, the dimensions of g1, g2, g3, and g4 can be freely set according to the degree of deformation of the substrate, and can respond to any impact. Furthermore, the arrangement position of each rib can be determined to be an optimum position in consideration of the board mounting component.

FIG. 2 is a sectional view showing a main part of a second embodiment of the present invention. The same reference numerals are given to the components already described in FIG.

The heat dissipating plates 22 and 23 dissipate heat by screwing, for example, a power transistor 26 which is a heat-generating component, and have a height dimension between the inner wall surface of the upper case 13 and the gaps g5 and g6. On the other hand, the fixing terminals 22a, 22b, 23a, 23b to the substrate 20 extend downward as shown in the figure, and the gaps g7, g8, g9, g10, g11, g1
2 are formed.

In the above configuration, as shown in the operation explanatory view of FIG. 3, for example, when an external force acts on the AC adapter in the direction of arrow F1 shown in FIG.
When 0 is displaced so as to warp upward as shown in the figure, the end 22t of the heat sink 22 comes into contact with the inner wall of the upper case 13, and further deformation of the substrate is prevented. In FIG. 3B, when an external force acts in the direction of arrow F2 shown in the figure, the ends 22aa, 22a of the fixing terminals 22a, 22b of the radiator plate.
bb abuts on the inner wall of the lower case 14 to prevent further deformation of the substrate. With such a configuration, the rib can be eliminated, and g5 to g as in the first embodiment.
The set amount of 12 can be set independently according to the degree of deformation of the substrate.

FIG. 4 is an external perspective view showing the third embodiment. In FIG. 4, reference numerals 25a and 25b denote lead terminals of an aluminum electrolytic capacitor 25, and reference numeral 20a denotes a solder surface pattern on the back surface of the substrate 20. Part soldering land, 20b
Is an exposed portion of the copper foil of the pattern, which indicates that no resist is applied.

In the above structure, the exposed portion of the copper foil is coated with solder by flow or reflow, and the weak portion of the component lead portion can improve the surface strength by doing so. Can be partially improved in bending strength.

FIG. 5 is an external perspective view showing the fourth embodiment. FIG. 6 is a sectional view of FIG.

In both figures, the same reference numerals are given to the components already described, and the description thereof will be omitted. The above-described transformer is mounted on the accommodating means composed of the upper and lower cases 13 and 14 and the broken line is shown. Of the ink jet recording printer 50 as a recording device.
And connecting means for mechanically and electrically connecting to the device.

With the above-described structure, with respect to a shocking load in the vertical direction of the printer 50, the substrate 20 is displaced by a predetermined amount to absorb the shock, and the displacement equal to or more than the predetermined amount is caused by the ribs 13b, 14b and others. It is built-in to regulate and distribute the impact load.

For this purpose, a fixing hook 56a for fixing mechanically and a side guide projection 5
6b is provided as shown. In addition, the power supply (AC
Guide groove 14c on both sides of the AC adapter, and an opening 14h for the inlet 15 provided on the rear surface of the AC adapter.
Are formed. An inlet 36 is connected to the inlet 15.

In the above configuration, the printer 50 and the AC
The adapter has a separate structure, but will be integrated when used.

In FIG. 6, a concave locking portion 14c is formed at the bottom of the lower case 14 of the AC adapter.
The distal end portion 56aa of the fixing hook 56a intrudes into this portion to fix. The AC adapter includes a DC connector 30 connected to a socket 31 provided inside a power supply housing 56 of the printer 50.
The second substrate 2 is connected to the second substrate 2 by an electric wire 28.
7 is implemented.

In the above configuration, when the printer 50 and the AC adapter, which are separately configured, insert the guide groove 14c into the projection 56b during use, the hook portion 56a
It is pressed down by the bottom surface of the C adapter, and when further inserted, is locked by the locking portion 14c. Before or after this, the socket 31 of the printer is connected to the connector 30 of the AC adapter, and power is supplied from the AC adapter to the printer. After this, AC socket 1
When the cable 36 is connected to the cable 5, the connection is completed.

In the above-described configuration, since the power supply accommodating portion 56 of the ink jet recording printer 50 is provided so as to be detachable and has a connecting means for mechanically and electrically connecting, it can be arbitrarily detachable. The above-mentioned impact load is applied only to the board 20, but the socket 31
No load is applied since it is mechanically separated via the pin 8.

As described above, since there is no change in part production, it is advantageous in terms of cost, and the management of each product destination and the reduction in output cordless cost include the cost of the product, especially including the management. Will be possible. Also,
Since the case is performed by the components mounted on the substrate, a very simple shape can be obtained as a case, which is particularly advantageous when the appearance is important.

The configuration of an ink jet printer as a typical embodiment of the present invention is shown in FIG. 6 in which a lead screw spiral groove rotates via a driving force transmission gear in conjunction with forward / reverse rotation of a driving motor 52. The carriage 51 engaged with the carriage 51 has a pin (not shown), and is reciprocated in the front and back directions on the paper surface. An ink jet cartridge 56 is mounted on the carriage 51. The paper 55 is applied to the platen 5 by the paper holding plate in the moving direction of the carriage.
3 and a predetermined amount is driven by the roller 54.

The capping, cleaning, and suction recovery are configured so that desired processing can be performed at the corresponding position by the action of the lead screw when the carriage comes to the area on the home position side. If the desired operation is performed in any of the above, any of the embodiments can be applied.

As described above, the radius of curvature of the substrate upon deformation of the substrate may be increased. In other words, if the substrate is held at a narrow interval, the radius of curvature becomes small even with a small deformation, so that the reverse can be taken as a countermeasure.

Under these circumstances, not restraining the deformation at all leads to destruction after all. Therefore, if restraining any deformation is performed by providing a function of restricting the parts other than the substrate, measures to strengthen the substrate itself cannot be taken. Since the substrate is not required, the degree of freedom in the material of the substrate is greatly increased. That is, the degree of freedom of the material of the substrate can be maintained, and the substrate can be protected from impact. At this time, the deformation time is taken by the softness of the substrate, and the load of the component on the soldered portion is dispersed in the time direction, so that the impact can be softened.

Further, the recording apparatus requires a power source.
In many cases, a C adapter is used as a power supply, particularly in office use and desk use. In such a case, there is a high possibility of dropping during handling due to wiring routing or downsizing of the AC adapter, and the solution can be achieved.

Further, it is conceivable to use a common body for simplifying the destination management of the printer of the ink jet recording system, and a cordless system for common use of the power supply and easy handling of the device. Further, the cost can be reduced by eliminating the power cord. As a solution to the above problems, the main body, power supply, and cord are separated, the main body and power supply are shared, and each destination is combined for each destination, and the printer and power supply are combined by the user as one. By doing so, it is possible to realize the ease of handling of destination management and cordlessness.

This is particularly effective when the printer and the AC adapter are assembled by the user. In other words, until the user assembles, since the adapter is provided separately, the adapter is apt to receive a drop impact load, so that it is necessary to prevent this.

As described above, an AC adapter having excellent impact resistance can be obtained, and the AC adapter can be configured separately from the main device, especially the recording device or the printer. This is effective for the common use of the main body and the AC adapter, and the management of the destination is simplified, and the product configuration is extremely excellent. Further, in the case of using the rib, it becomes possible without increasing the cost at all. Further, when components such as a heat sink and a transformer are used, it can be achieved without affecting the appearance of the case at all.

[0065]

As described above, according to the present invention,
Provided is a power supply device that increases the radius of curvature of the substrate in the deformation of the substrate when an impact load is applied, deforms the substrate appropriately, and does not generate a stress greater than a breaking stress on a mounted component, and a recording device using the same. it can.

In addition, the recording apparatus requires a power supply, and in many cases, an AC adapter is used as a power supply in order to reduce the size of the main body and to use the main body in common, especially for office use and desktop use. In the case of (1), since there are many accidents of dropping during handling due to wiring routing or downsizing of the AC adapter, this can be dealt with.

In order to simplify the management of foreign specifications of a recording apparatus including an ink jet printer, it is possible to cope with a common body and a common power supply.

[0068]

[Brief description of the drawings]

FIG. 1 is a sectional view illustrating a substrate holding structure according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a configuration according to a second embodiment.

FIG. 3 is a cross-sectional view showing a deformation of the substrate received by the substrate 20 of FIG. 2 by impact.

FIG. 4 is an external perspective view showing a third embodiment.

FIG. 5 is an external perspective view showing a fourth embodiment.

FIG. 6 is a sectional view of FIG. 5;

FIG. 7 is a sectional view showing a conventional example.

FIG. 8 is an operation explanatory view showing a conventional example.

FIG. 9 is a diagram of a transformer showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Transformer 11 pin (primary side) 12 pin (secondary side) 13 upper case 14 lower case 20 board 21 screw 22 heat sink 23 heat sink 25 aluminum electrolytic capacitor 27 second board 30 connector 31 socket

Claims (12)

[Claims] 1. A power supply device having a mounting board on which a transformer is mounted, wherein: a fixing portion fixed in an immovable state in a direction parallel to a mounting surface of the mounting board; and an impact load in a direction substantially orthogonal to the mounting surface. The mounting means includes a defining portion for absorbing a shock by displacing the mounting substrate by a predetermined amount and distributing the load by defining a displacement equal to or more than the predetermined amount. A power supply device characterized by incorporating therein. 2. The storage device according to claim 1, wherein said housing means comprises an upper case body and a lower case body which are vertically divided with respect to said mounting board, and wherein said fixing portion extends from said upper case body and said lower case body, respectively. A shape portion that extends from the upper case body and the lower case body such that the predetermined portion is separated from the mounting board by the predetermined amount and infiltrates between mounting components including the transformer. The power supply device according to claim 1, wherein the power supply device is formed as: 3. The housing means comprises an upper case body and a lower case body which are vertically divided with respect to the mounting board, and wherein the fixing portion extends from the upper case body and the lower case body, respectively. The defining portion is arranged such that a component end of a mounting component including the transformer and a lead end of a component mounting lead are separated from the inner surface portions of the upper case body and the lower case body by the predetermined amount. The power supply device according to claim 1, wherein: 4. The power supply device according to claim 3, wherein the mounting component includes a heat sink. 5. The semiconductor device according to claim 1, further comprising a dummy land portion integrally or independently formed with the mounting pattern on the mounting substrate.
The power supply device according to any one of claims 1 to 4, wherein the rigidity is increased by strengthening the substrate surface strength by solder coating by flow or reflow. 6. A power supply device having a mounting board on which the transformer is mounted, wherein: a fixing portion fixed in an immovable state in a direction parallel to a mounting surface of the mounting board; For the load, the mounting board is displaced by a predetermined amount to absorb an impact, and a defining part for distributing the load by defining a displacement of the predetermined amount or more, A recording apparatus using a power supply device, comprising a board, a connection means for mechanically and electrically connecting the storage means to the power storage section of the recording apparatus, the storage means being detachably provided. 7. The accommodation means comprises an upper case body and a lower case body which are vertically divided with respect to the mounting board, and wherein the fixing portion extends from the upper case body and the lower case body, respectively. A shape portion that extends from the upper case body and the lower case body such that the predetermined portion is separated from the mounting board by the predetermined amount and infiltrates between mounting components including the transformer. 7. A recording apparatus using the power supply device according to claim 6, wherein the recording apparatus is formed as: 8. The housing means comprises an upper case body and a lower case body which are vertically divided with respect to the mounting board, and wherein the fixing portions extend from the upper case body and the lower case body, respectively. The defining portion is arranged such that a component end of a mounting component including the transformer and a lead end of a component mounting lead are separated from the inner surface portions of the upper case body and the lower case body by the predetermined amount. 7. A recording device using the power supply device according to claim 6, wherein the recording device is configured as follows. 9. The recording apparatus according to claim 8, wherein the mounting component includes a heat sink. 10. The mounting board according to claim 1, further comprising a dummy land portion formed integrally or independently of the mounting pattern, wherein the rigidity is enhanced by strengthening the board surface strength by solder coating by flow or reflow. A recording device using the power supply device according to claim 6. 11. The recording apparatus according to claim 1, further comprising: an ink jet recording head that performs recording by discharging ink from the recording head, and wherein the recording apparatus is integrated with an AC adapter. 6 to 1
0. A recording device using the power supply device according to any one of the above. 12. The recording head according to claim 1, wherein the recording head ejects ink by using thermal energy, and includes a thermal energy converter for generating thermal energy to be applied to the ink. Item 11. A recording device using the power supply device according to Item 10.