JP3809714B2 - Ultrasonic cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic cleaning machine, and more particularly to an ultrasonic cleaning machine in which an electric heating plate (plate type heater) is provided on a side wall portion of a cleaning tank body.
[0002]
[Prior art]
There are various types of ultrasonic cleaners in the past. Especially, in recent years, there is one that heats the cleaning liquid by installing an electric heating plate on the side wall of the main body of the cleaner to improve the cleaning efficiency. Has been developed. And the washing machine main body mentioned above is generally hold | maintained by the case main body arrange | positioned so that the circumference | surroundings may be surrounded.
[0003]
Further, in this cleaning liquid heating type ultrasonic cleaning machine, a relatively thick heat insulating material is mounted between the above-described electric heating plate and the case main body, whereby the heat of the electric heating plate is located outside. This prevents the case body from being partially heated to a high temperature.
[0004]
Here, as the heat insulating material in this conventional example, generally, a wool-like, sponge-like, or laminated plate-like material made of glass, ceramic, asbestos, inorganic mineral fibers or the like is frequently used.
[0005]
[Problems to be solved by the invention]
However, in the above-described conventional example, when the ultrasonic cleaning machine is operated for a relatively long time (for example, 4 hours or more), the temperature of the heat insulating material itself becomes high, so that the outer plate portion of the case body exceeds, for example, 80 degrees. In addition to reaching the state, problems such as the generation of a strange odor in the heat insulating material occurred, making it unsuitable for long-time driving.
[0006]
In addition, the above-described heat insulating materials are generally unstable in shape and uneven, are not suitable for bonding, and inorganic materials are fragile as materials. Therefore, dust is easily generated during assembly and maintenance. For this reason, in use, in many cases, an auxiliary fixing structure is always required, which has the disadvantage that the structure becomes complicated.
Furthermore, the heat insulating material itself is expensive, and with the complicated mounting structure described above, the conventional apparatus equipped with this heat insulating material has a disadvantage that the cost of the entire device increases. Always existed.
[0007]
OBJECT OF THE INVENTION
The present invention improves the inconveniences of such conventional examples, in particular, simplifies the structure, has good durability and maintainability, and can effectively prevent high temperature of the outer plate part even when used for a long time. The object is to provide a sonic cleaner.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, a cleaning tank body equipped with an ultrasonic oscillator that is open at the top and outputs ultrasonic waves for cleaning to the bottom plate portion, and holding the cleaning tank body and the cleaning tank body The case body having a space area below the bottom surface of the battery, the electric heating plate mounted on the side wall of the cleaning tank body, the air cooling fan mounted on the side wall portion of the case body, and the bottom plate of the case body are described above. And an electronic control circuit unit that drives and controls an ultrasonic oscillator, an air cooling fan, and the like. The case body is provided with an outside air inlet region and an exhaust port region.
[0009]
Further, a predetermined space layer is provided between the side wall of the cleaning tank main body and the side wall of the case main body where the electric heating plate is equipped, and the heat shielding plate is provided in the space layer between the electric heating plate and the side wall of the case main body. Is disposed. The basic configuration is that the space layer between the heat shield plate and the electric heating plate and the space layer between the heat shield plate and the side wall of the case body are respectively used as ventilation paths. .
[0010]
For this reason, in the present invention , first, when the entire apparatus is set to an operating state, each ultrasonic transducer is activated to be in a washable state. At the same time, the temperature of the electric heating plate is increased by energization of the electric heating plate, whereby the temperature of the cleaning liquid gradually increases through the side wall of the cleaning tank body. The air cooling fan is also operated at the same time. For this reason, outside air is continuously introduced from the outside air inlet region of the case main body, and internal air is continuously discharged from the exhaust port region to the outside.
[0011]
On the other hand, when the electric heating plate is heated, the heat of the electric heating plate is also transmitted in the direction of the side wall of the opposing case main body, but for example, radiant heat is effectively shielded against the case main body by the heat shielding plate. And since the said heat shielding board is equipped in the ventilation path, the said heat shielding board is air-cooled, and the case main-body part of the outer side of the said heat shielding board is also similarly cooled from the inside, respectively, and the temperature rises, respectively. Is effectively suppressed.
[0012]
As a result, the temperature rise of the case body described above is greatly reduced as compared with the conventional example due to the heat shielding and the air cooling effect from the inside. Experimentally, the temperature rise of the case body 2 could be suppressed to ½ or less (for example, 40 ° or less) of the conventional example filled with the insulating member.
[0015]
In addition , an outside air inlet region is disposed at a position near one side (front side) of the case body at the lower part of the left and right side walls constituting the case body, and facing each outside air inlet region. A configuration is adopted in which a wind guide plate for guiding a part of the introduced outside air to the above-described ventilation path is provided upright on the bottom surface of the case body.
Since the outside air is introduced from the two left and right locations, the electronic control circuit section on the bottom plate of the case body can be effectively cooled, and in this respect, the durability of the entire apparatus can be increased.
[0016]
In addition, the air cooling fan is mounted on the lower portion of the side wall of the case body located at the position on the electric heating plate side, and the exhaust port region is disposed on the side wall of the case body corresponding to the air cooling fan. The structure is adopted.
Therefore, as described above, the outside air introduced into the case main body is divided and taken in almost two directions by the air guide plate on the upper side, the front side, and the electronic control circuit unit side, and the electronic control circuit unit side portion and After passing through the space between the cleaning tank main body and the case main body, it is finally exhausted to the outside by an air cooling fan.
[0017]
In this case, since the air-cooling fan is equipped so as to directly suck and exhaust the air on the electronic control circuit side, a part of the introduced outside air a diverted in the upward direction gets over the air guide plate. It enters the electronic control circuit side. Thereby, the air of the electronic control circuit unit is continuously discharged to the outside by the air cooling fan, and each control circuit unit is effectively and reliably cooled.
[0018]
Further, the air in the case body heated by the electric heating plate for the cleaning tank body is also continuously released to the outside. At the same time, since the air guide plate is disposed opposite to the outside air inlet region as described above, even if the cleaning liquid spills from the case body 2, the splashed water or the like passes through the outside air inlet region. Even if it enters, the internal electronic control circuit part can be effectively protected by the air guide plate.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0020]
First, in FIGS. 1 to 4, reference numeral 1 denotes a cleaning tank body, and reference numeral 2 denotes a case body that houses and holds the cleaning tank body 1.
In the present embodiment, the cleaning tank body 1 is made of a stainless steel plate and is formed in a box shape having a U-shaped cross section with the upper part opened. Further, as shown in FIGS. 1 to 4, the cleaning tank body 1 has a flange portion 1A having a predetermined width extending in the horizontal direction around the upper end portion, and the case body 2 described above is formed by the flange portion 1A. Is retained.
[0021]
Here, the cleaning tank body 1 is formed of a stainless steel plate of SUS304, and the case body 2 is formed of a stainless steel plate of SUS430. Reference numeral 1 </ b> Aa denotes a locking portion that is provided in a drooping manner around the outside of the collar portion 1 </ b> A. The locking portion 1Aa is engaged with the periphery of the upper end portion of the case main body 2 described above, thereby restricting the movement of the cleaning tank main body 1 in the horizontal direction.
[0022]
Moreover, the case main body 2 is formed in a box shape with a U-shaped cross-section with the upper part opened, like the cleaning tank main body 1 described above. Here, the case body 2 may be configured such that the side wall on the back side thereof is detachable. This is convenient because it facilitates assembly of various interior devices.
[0023]
The case main body 2 is provided with a plate-shaped holding portion 2A having a predetermined width for holding the above-described cleaning tank main body 1 so as to protrude inward from the periphery of the upper end portion.
The case body 2 is set to have a height dimension that is approximately 1.5 times larger than the above-described cleaning tank body 1, thereby forming a predetermined space region below the bottom plate 1 </ b> B of the cleaning tank body 1. ing.
[0024]
The above-described bottom plate 1 </ b> B of the cleaning tank main body 1 constitutes a diaphragm for applying ultrasonic waves to the cleaning liquid in the cleaning tank main body 1. A plurality of ultrasonic transducers 11 are suspended from the bottom surface of the bottom plate 1B. In the present embodiment, a Langevin type transducer is used as the ultrasonic transducer 11.
[0025]
Further, a plate-shaped electric heating plate 12 is mounted on the side wall 1C on the other side (back side) of the cleaning tank body 1. This electric heating plate 12 is for increasing the cleaning efficiency of the object to be cleaned by ultrasonic waves by heating the cleaning liquid in the cleaning tank body 1, and in the present embodiment, a rectangular shape that is long in the horizontal direction is used. Equipped.
[0026]
An air cooling fan 21 is provided below the electric heating plate 12. This air cooling fan 21 is for releasing the heated air in the case main body 2 to the outside, and is provided in the lower part of the side wall 2C on the back side of the case main body 2 located at the location on the electric heating plate 12 side. Has been. Reference numeral 22 denotes a fan drive motor for driving the air cooling fan 21. Reference numeral 2Ca denotes an exhaust port region provided in the case body 2 corresponding to the air cooling fan 21 (see FIGS. 3 to 5). The exhaust port region 2Ca is configured by a plurality of arc-shaped through holes in the present embodiment, but may have a structure in which a through hole having an appropriate size is provided and covered with a predetermined wire mesh or the like.
[0027]
On the bottom plate 2B of the case body 2, an electronic control circuit unit 30 (see FIG. 4) for driving and controlling the above-described ultrasonic transducer 11 and energizing the above-described electric heating plate 12 is provided. Of the electronic control circuit section 30, a first control circuit section 30A equipped with a power transistor, a heat sink, and the like is disposed at a predetermined position on the front side near the air cooling fan 21 as shown in FIG.
[0028]
The second control circuit unit 30B equipped with a noise filter or the like and the third control circuit unit 30C equipped with other electronic circuits are arranged on the back side of the case body 2. Each of these control circuit units 30A to 30C is fixedly mounted on a predetermined circuit board and housed in the case body 2 described above.
[0029]
The left and right side walls 2C in FIG. 1 of the case main body 2 are provided with outdoor air inlet regions 2Ce and 2Cf in the lower part thereof adjacent to one side (front side), respectively. The outside air inlet regions 2Ce and 2Cf are constituted by a plurality of through holes arranged in a matrix, but a structure in which a single through hole of an appropriate size is provided and covered with a predetermined wire mesh or the like It is good.
[0030]
Inside the respective outside air inlet regions 2Ce and 2Cf, air guide plates 23 and 24 are provided facing the outside air inlet regions 2Ce and 2Cf and spaced apart from each other. The air guide plates 23 and 24 have a function of guiding a part of the introduced outside air to the space between the cleaning tank main body 1 and the case main body 2.
Specifically, the air guide plates 23 and 24 have a moderate height (for example, on the bottom plate 2B) so that the introduced outside air does not directly hit the control circuit units 30A to 30C (see FIG. 4). The height of the space is about 4/5), and extends from the back side to the front side to a length of about ½ of the entire depth.
[0031]
For this reason, the outside air introduced from each outside air inlet region 2Ce, 2Cf is taken in by being divided into two flows from the upper side to the back side and the control circuit units 30A to 30C by the air guide plates 23, 24. Then, the air is exhausted to the outside by the air cooling fan 21 after passing through the control circuit portions 30A to 30C and the space (air passage) between the cleaning tank main body 1 and the case main body 2.
[0032]
That is, the air guide plate 23 is provided in the space area above the control circuit units 30A to 30C (below the cleaning tank body 1) and the space area between the periphery of the side wall of the cleaning tank body 1 and the case body 2. , 24, and ventilating passages 25 (see FIGS. 2 to 4) that are distributed to the air cooling fan 21 described above.
And in the space area | region (space area set between the circumference | surroundings of the side wall of the washing tank main body 1, and the case main body 2) of the location equipped with the electric heating plate 12 mentioned above, it opposes the said electric heating plate 12, and heat | fever A shielding plate 26 is provided.
[0033]
In the present embodiment, the heat shielding plate 26 is set to have a width somewhat larger than the width of the electrothermal plate 12 (for example, about 1.2 to 1.5 times), and is a metal member. The both ends of the case body 2 are fixedly mounted on the left and right side walls 2C of the case body 2 described above.
[0034]
In the present embodiment, the heat shielding plate 26 is made of a stainless plate made of the same material (SUS430) as the material of the case body 2 described above. Here, the thickness of the heat shielding plate 26 may be set to be thinner (0.8 mm or less) than the plate thickness (for example, 1.6 mm) of the case body 2.
And the temperature rise of the case main body 2 part of the location where the electric heating plate 12 is equipped is effectively suppressed by the heat shielding action of the heat shielding plate 26, as will be described later.
[0035]
Furthermore, the code | symbol 35 shows the washing water discharge valve for discharging washing water (it abbreviate | omits about the washing water carrying-in path). In addition, about washing water carrying-in, you may make it introduce by setting an appropriate water level (or water pressure) from this washing water discharge valve 35 part.
In FIG. 6, reference numeral 36 denotes a control panel provided on the side wall 2 </ b> C on the front side (one side) of the case body 2. In addition, although not shown in the drawings, various equipment such as a conveyance handle and a lid for the cleaning tank body 1 that are normally required in an ultrasonic cleaning machine are also provided as they are in this embodiment.
[0036]
Next, the operation of the above embodiment will be described.
First, after a predetermined amount of the cleaning liquid is filled in the cleaning tank body 1 and then the power is turned on to set the entire apparatus in an operating state, each of the ultrasonic transducers 11 described above is activated, and the cleaning tank body 1 immediately enters the cleaning tank body 1. It becomes ready for cleaning. At the same time, the temperature of the electric heating plate 12 rises due to energization of the electric heating plate 12, thereby heating the side wall 1C portion of the cleaning tank main body 1, and the temperature of the cleaning liquid inside gradually increases, for a predetermined time (a certain time). After that, it is heated to a predetermined temperature set in advance.
[0037]
When the power is turned on, the above-described air cooling fan 21 also operates simultaneously. For this reason, outside air is continuously introduced from the outside air inlet regions 2Ce and 2Cf of the case body 2, and at the same time, the air inside the case body 2 is continuously discharged from the exhaust port region 2Ca provided below the entire surface of the case body 2. Released.
[0038]
As described above, the outside air introduced into the case main body 2 flows from the upper side to the back side (rear side) by the air guide plates 23 and 24, and in almost two directions (reference numerals) on the front side and the control circuit units 30A to 30C side. a) and b), and the air is exhausted to the outside by the air-cooling fan 21 through the control circuit portions 30A to 30C and the space between the cleaning tank main body 1 and the case main body 2.
[0039]
In this case, since the air cooling fan 21 is disposed at a position for directly sucking and exhausting air of the control circuit portions 30A to 30C, a part of the introduced outside air a diverted in the upward direction The board passes over the plates 23 and 24 and enters the control circuit units 30A to 30C. Thereby, the air of each control circuit part 30A-30C part is continuously discharged | emitted by the air cooling fan 21, and the said each control circuit part 30A-30C part is cooled effectively.
[0040]
Further, the air on the case body 2 side heated by the electric heating plate 12 is also continuously released to the outside. At the same time, since the air guide plates 23 and 24 are arranged opposite to the outside air introduction regions 2Ce and 2Cf as described above, even if the cleaning liquid spills from the case body 2, the splash water is introduced into the outside air. Even if the vehicle enters through the mouth regions 2Ce and 2Cf, the internal electronic control circuit unit 30 is effectively blocked by the air guide plates 23 and 24.
[0041]
On the other hand, the heat of the electric heating plate 12 is transmitted also in the direction of the side wall of the opposing case body 2, but in this embodiment, for example, radiant heat is effectively applied to the case body 2 by the heat shielding plate 26. Shielded. At the same time, since the heat shielding plate 26 is provided in the ventilation path 25, the internal air as the heat transfer medium existing in the ventilation path 25 is continuously discharged without increasing the temperature. Further, the heat shielding plate 26 heated by radiant heat or the like is effectively cooled by the cold air passing through the ventilation passages 25 formed on both surfaces thereof, and the temperature rise is reliably suppressed.
[0042]
For this reason, the temperature rise of the case main body 2 described above is significantly reduced as compared with the conventional example. Experimentally, the temperature rise of the case body 2 could be suppressed to ½ or less (for example, 40 ° or less) of the conventional example filled with the insulating member.
[0043]
In addition, in the said embodiment, although the case where the heat shielding board 26 was comprised by the flat board member of predetermined width was illustrated, as long as the radiation heat from the electric heating board 12 can be interrupted | blocked, for example, unevenness | corrugation is used. You may comprise by the plate member provided, the plate member of a waveform shape, and also the plate member provided with innumerable protrusion.
[0044]
【The invention's effect】
Since the present invention is configured and functions as described above, according to this, since a heat insulating material is not provided, the structure can be simplified and a heat shield plate can be provided in the ventilation path facing the electric heating plate. Not only can the temperature rise of the case body on the side equipped with the electric heating plate be effectively suppressed, but the durability and maintainability of the entire device can be effectively improved in spite of the simple configuration of being equipped. In addition, it is possible to provide an unprecedented ultrasonic cleaning machine capable of reliably preventing high temperature of the outer plate portion even when used for a long time and enabling continuous use for a long time.
[Brief description of the drawings]
FIG. 1 is a partially cutaway rear view showing an embodiment of the present invention.
2 is a right side view with a part cut away of FIG. 1; FIG.
3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is a partially cutaway plan view of FIG.
FIG. 5 is a rear view showing an embodiment of the present invention.
FIG. 6 is a front view showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cleaning tank main body 1B Cleaning tank main body bottom plate 1C Cleaning tank main body side wall 2 Case main body 2B Case main body bottom plate 2C Case main body side wall 2Ca Exhaust port area | region 2Ce, 2Cf Outside air introduction port area | region 12 Electric heating plate 21 Cooling fan 23, 24 Air guide plate 25 Ventilation path 26 Heat shield plate 30 Electronic control circuit section

Claims (1)

A cleaning tank body equipped with an ultrasonic oscillator that is open at the top and outputs ultrasonic waves for cleaning to the bottom plate portion, and has a space region below the bottom plate of the cleaning tank body that holds the cleaning tank body. A case main body, an electric heating plate mounted on a side wall of the cleaning tank main body, an air cooling fan mounted on a side wall portion of the case main body, and the ultrasonic oscillator and the air cooling fan on the bottom plate of the case main body. In an ultrasonic cleaning machine comprising an electronic control circuit unit for driving control, etc., and equipped with an outside air inlet region and an exhaust port region in the case body,
A predetermined space layer is provided between a side wall of the cleaning tank main body and a side wall of the case main body in a portion equipped with the electric heating plate, and heat shielding is performed on the space layer between the electric heating plate and the side wall of the case main body. A plate, and a space layer between the heat shield plate and the electric heating plate, and a space layer between the heat shield plate and the side wall of the case main body are used as ventilation paths , respectively .
The outside air inlet region is disposed at a position close to one side of the case body at the lower part of the left and right side walls constituting the case body, and the introduced outside air is opposed to each outside air inlet region. An air guide plate that guides a part of the air passage to the ventilation path is erected on the bottom surface of the case body ,
The air cooling fan is mounted on the lower portion of the side wall of the case body on the electric heating plate side, and the air cooling fan, the electronic control circuit unit, and the ultrasonic oscillator are sandwiched between the air guide plates corresponding to the left and right side walls. Arranged in the space below the bottom plate of the tank body ,
An ultrasonic cleaning machine , wherein the air guide plate is disposed so as to face a position in the vicinity of the side wall of the cleaning tank main body so as to form a ventilation path to be diverted between the air flow guide plate and the bottom plate .

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