KR20180002837U - Immersion heater - Google Patents

Abstract

The present invention relates to an underwater heater, and more particularly, to a water heater provided with a highly reliable underwater heater by allowing water to be blocked by a second filler formed of a plurality of layers of heating rods inserted into a body, Even if the heating rod is inserted into the body by the filling material, the space in which the second filling material can be injected is formed to have a predetermined interval, so that the ratio of the heating temperature discharged through the body is made uniform, To an underwater heater capable of preventing a safety accident by blocking direct contact between an installation member and a heat-generating body.
To this end, the underwater heater according to the present invention comprises a tubular body, a heating bar inserted into the body and provided to be able to generate heat by an applied power source and adjust the temperature of water contained in the installation member, A first filler filled in the body so as to form a space between the outer surface and the inner surface of the body, and a heating rod filled in the space and hardened after a predetermined time to fix the heating rod inserted into the body, An extension cable disposed at a rear end of the body and having a flexible shape that is easily adjustable in angle and a flexible cable disposed at one end of the extension cable, And a temperature control unit for controlling the temperature control unit.

Description

An immersion heater

The present invention relates to an underwater heater, and more particularly, to a water heater provided with a highly reliable underwater heater by allowing water to be blocked by a second filler formed of a plurality of layers of heating rods inserted into a body, Even if the heating rod is inserted into the body by the filling material, the space in which the second filling material can be injected is formed to have a predetermined interval, so that the ratio of the heating temperature discharged through the body is made uniform, To an underwater heater capable of preventing a safety accident by blocking direct contact between an installation member and a heat-generating body.

Generally, the water tank in which the live fish live should maintain the water temperature constant so that the habitat environment of the live fish can be maintained at a good quality. Since it is practically impossible to keep the temperature of the space where the water tank is installed, An underwater heater is provided to keep the temperature within a range.

A general structure of the above-mentioned underwater heater will be briefly described. The submerged heater and the heater cover, which are shown in FIG. 1 (Korean Registered Utility Model No. 20-0435381 (2007.19)) and the Korean Registered Utility Model 20-0346542 A heating tube for generating heat and a control unit for controlling the operation of the heating tube, as in the prior art, which is a submerged heater with a banding on the molding, The shape of the coil is wound into a coil shape having a predetermined diameter and is formed in a length that can be installed in the water tank, and is connected to the control unit. However, in the vicinity of the heating tube, A temperature sensing sensor and a heating tube sensing sensor are installed for sensing the temperature of the heat exchanger.

The water temperature and heat pipe detection sensors are installed to sense the water temperature and the temperature of the heat pipe, respectively, and to stop the operation of the heat pipe when a temperature over the allowable range is sensed. For example, The sensing members of the well-known type are short-circuited by the temperature of the water or the solution in the heating tube or the water tank, and the current applied to the heating tube through the control unit is cut off.

At this time, a power line and a sensor line for current and signal transmission are connected to the heating tube and the sensing sensor, and water is introduced through a portion where the power line and the sensor line are inserted, have. Therefore, in the conventional underwater heater, a portion where the power supply line and the sensor line are inserted must be located on the water surface, which has a disadvantage in that there is a limit in utilization. In order to solve such a problem, there has been proposed a method of sealing a portion where a power line and a sensor line are inserted by using a silicone or a packing. However, in the proposed sealing method, It is not possible to completely prevent it.

The object of the present invention is to provide an underwater heater with high reliability by blocking inflow of water and to provide an underwater heater that can prevent a safety accident.

According to an aspect of the present invention, there is provided an underwater heater comprising: a tubular body; a heat sink installed in the body for generating heat by an applied power source; A first filler filled in the body so as to form a space between the outer surface of the heating bar and the inner surface of the body; and a second filler filled in the space, A second filler disposed on the rear end of the body and configured to be flexible in an angle with respect to the body, And a temperature controller for controlling the temperature of heat generated by the heating rod. It is.

The body may have a diameter larger than an outer diameter of the body to prevent direct contact between the body and the attachment member, and the spacer may include at least one through hole through which the body is inserted, Or may be fixed to the body or may be installed to be movable along the longitudinal direction of the body.

The first filler may be at least one of sand or magnesite having a particle shape and having a thermal conductivity such that the first filler is injected into the body before the second filler and inserted into the body, desirable.

The second filler may be injected into the body in a liquid phase, and may be cured after a predetermined period of time using silicone, and may be cured into a plurality of layers with a time difference within the body.

The body may further include a gripping member formed in a ring shape having an inner diameter larger than the outer diameter of the body, the gripping member having adjacent rings spaced apart from each other.

According to the present invention, the inflow of water can be blocked by the second filling material formed of a plurality of layers of the heating rods inserted into the inside of the body, so that the highly reliable underwater heater can be supplied.

In addition, even if the heating rod is inserted into the body by the first filling material, the space in which the second filling material can be injected is formed to have a predetermined interval, thereby providing an underwater heater having a uniform ratio of the heating temperature discharged through the body .

Further, it is possible to provide an underwater heater capable of preventing a safety accident by blocking direct contact between an installation member and a heat-generating body, as well as providing a plurality of bodies through a spacing plate.

1 and 2 are views showing a conventional underwater heater.
3 is a view showing an embodiment of an underwater heater according to the present invention.
4 is a view showing a body and a heating bar of an underwater heater according to the present invention.
5 is a view showing a separating plate of an underwater heater according to the present invention.
7 is a view showing a state where the first and second fillers of the underwater heater are filled in the body according to the present invention.
8 is a view showing an overheat prevention unit of an underwater heater according to the present invention.
Fig. 9 is a use state of an underwater heater according to the present invention. Fig.
10 is a view showing a gripping member of an underwater heater according to the present invention.
11 is a view showing a bimetal switch of an underwater heater according to the present invention.
12 is a view showing another embodiment of an underwater heater according to the present invention.
13 is a view showing a state in which an underwater heater is installed according to the present invention;

Hereinafter, an underwater heater according to the present invention will be described in detail with reference to the accompanying drawings.

3, the underwater heater 100 according to the present invention includes a body 110, a heat generating rod 120, a first filler 130, a second filler 140, (310) and a temperature controller (320).

The body 110 has a space 115 formed therein by injecting a first filler 130 into the body 110 and a heating rod 120 inserted into the space 115, A second filler material 140 which can be cured into a plurality of layers with a time difference is injected into the heating unit 120 so that the heating unit 120 can be fixed to the body 110. As a result, The heat of the heating rod 120 is transmitted to the outside of the body 110 so that the water temperature of the water accommodated in the mounting member 200 can be controlled.

In this case, the installation member 200 described in the detailed description of the present invention is described as an example of a water tank containing live fish (live fish) used for ornamental use or edible use, but this is merely one example, Note that this means that the use is necessary.

4, the body 110 may include a heating rod 120 fixed in the body 110 by the first and second filling materials 130 and 140 in the water-containing mounting member 200, Is installed so as to be submerged, and is formed to transmit the heat to the outside to raise the water temperature, and has a cylindrical or prismatic pipe shape with an open bottom.

The body 110 is made of a metal material capable of increasing the water temperature when the heat generated by the heat generating rod 120 is transmitted to the body 110 when the body 110 generates heat, The outer surface of the body 110, which transmits the heat of the heating rod 120, is prevented from directly contacting the mounting member 200, thereby preventing a safety accident.

That is, depending on the amount of water contained in the mounting member 200, the heat generating bar 120 generates heat at a temperature of several tens or hundreds of degrees Celsius. The temperature of the heat generating rod 120 is transferred directly to the body 110, There is a possibility that the installation member 200 may be damaged when there is direct contact between the members 200, which leads to safety accidents. As shown in the drawing, a separating plate 111 having a rectangular or circular plate shape is provided on the outer surface of the body 110 to avoid direct contact between the outer surface of the body 110 and the mounting member 200, It is possible to prevent a safety accident caused by temperature. (See Fig. 9)

In addition, when the separating plate 111 has a low thermal conductivity but is made of a strong material for heat, and when a flow of water contained in the mounting member 200 exists, the separating plate 111 is formed in a square shape so that the underwater heater 100 can not move to the flow of the water If there is no flow of water, it is formed into a disc shape. The through hole 113 is formed in the separating plate 111 so that the outer surface of the body 110 is inserted into the through hole 113. The through hole 113 is formed in the separating plate 111, It is desirable to insert the water into the water tank so as to view the time gain for the water temperature rise. (See Fig. 5)

Further, the separating plate 111 may be fixed to the outer surface of the body 110 by an adhesive means such as welding or the like, but may be provided so as to be movable along the outer surface of the body 110 as required. 6)

3 and 4, the heating bar 120 is inserted into the hollow body 110 and the lead wire 121 formed on the lower portion is connected to the power cable P / W, so that heat can be generated by an applied power source. At this time, the lead wire 121 is connected to the power cable P / W so as to be covered by the second filler 140 cured in the body 110, so that short-circuit due to water can be prevented However, if necessary, it is preferable that the connection portion between the lead wire 121 and the power cable P / W is blocked by water by the cover 117 so that short-circuiting can be prevented.

In addition, although the heating rod 120 in the present invention has been described as having a bar shape, this is merely one embodiment, and it is not limited thereto. The heating rod 120 may have a coil shape or a U- It is possible to insert the heat exchanger into the body 110 to generate heat.

Further, an overheat preventing part 150 may be further provided between the power cable P / W or the heat generating rod 120 and the power cable P / W. The overheating preventing part 150 may include a temperature sensor 151, .

For example, the overheat preventing unit 150 is electrically connected to the heating bar 120 or a temperature sensor 151 that detects the temperature of the body 110 heated by the heating bar 120, The heating rod 120 may be disconnected from the power supply to cut off the heating of the heating rod 120. In this case, At this time, the overheat prevention unit 150 can cut off the power applied to the heat generating bar 120 by a fuse (not shown) or the like, and the temperature sensor 151 is disposed on the outer surface of the heat generating bar 120 (110) to be cured by the second filler (140), or may be fixed to the separating plate (111) so as to be in surface contact with the outer surface of the body (110) To be transmitted to the mobile station (150).

The bimetal switch 170 is further provided between the lead wire 121 provided at the tip of the heating rod 120 and the power cable P / It is more preferable that the power supply is stopped when the temperature is overheated by the reference temperature value. The bimetal switch 170 is disposed between the power cable P / W and the lead wire 121 to transmit a normally-applied power through the lead wire 121. The temperature of the heat generating rod 120 is overheated, When the temperature rises and the heat is transmitted, the contact portion contacting the lead wire 121 is disconnected from the lead wire and the power supply is cut off (see Fig. 11). (See Fig. 11)

The first filler 130 may be filled with a second filler 140 between the inner surface of the body 110 and the outer surface of the heat bar 120 when the heat bar 120 is inserted into the body 110 To form a space portion 115 having a predetermined space.

The first filler 130 is made of at least one of sand or magnesite having a thermal conductivity and the upper portion of the heating bar 120 inserted into the body 110 is easily inserted into the first filler 130 (Particle) shape so as to be supported. The heat generating rod 120 inserted into the body 110 forms a space 115 having an equal space in the body 110 so that the heat of the heat generating rod 120 is transmitted to the outside of the body 110 It is preferable that heat can be generated to have a uniform temperature. (See Fig. 7a)

The second filling material 140 is injected and cured into the body 110 where the space 115 is formed to fix the heating rod 120 inserted into the body 110, And prevents water from flowing into the body 110 when the member 200 is locked.

The second filling material 140 is injected into the space portion 115 in a liquid phase and then cured after a predetermined period of time. Silicon is injected into the space portion 115 over the entire section Z So that the silicon can be cured in the space 115 in the filled state. That is, a shrinking action occurs at the time of curing of the silicone, and this shrinking action forms a gap between the cured silicone and the inner surface of the body 110, which causes problems such as short-circuit due to inflow of water at the time of installation . Z2, Z3, and Z4 so that the silicon filled in the entire section Z of the space section 115 can be injected separately with a time difference, as shown in the drawing, First, after the silicon filled in the injection restricting zone Z1 is hardened, the plurality of hardened layers are formed by repeatedly performing several times so that the silicon can be sequentially filled in the other injection restricting zone Z2, The gap between the silicon and the inner surface of the body 110 can be prevented. (See Figs. 7B and 7C)

In addition, although the injection restricting area in the present invention is described as being divided into four, for example, it is only one embodiment, and at least two injection restricting areas are possible.

Meanwhile, when the body 110 is further disposed in addition to the body 110 where the body 110 is disposed in a state where the body 110 is disposed in the installation member 200, the body 110 may be prevented from overlapping This is because when the plurality of bodies 110 are disposed adjacent to each other, the temperature at the position where the body 110 is disposed is high and the temperature at a position where the body is not relatively positioned is low. The load of the body 110 is transferred to the joint between the heating rod 120 and the lead wire 121 or between the lead wire 121 and the power source 121. In this case, The power supply cable (P / W) is connected to the power supply cable (P / W) and the connection part is disconnected or short-circuited. At the same time, (P / W) or body 1 10), the leakage occurs.

In order to solve this problem, the present invention is further provided with a grip member 160 that allows an operator to grasp the body 110 directly or with a separate tool even when the body 110 is powered.

10, the gripping member 160 is disposed so as to surround the outer circumferential surface of the body 110 so that the inner circumference of the gripping member 160 is spaced apart from the outer circumferential surface of the body 110, As shown in FIG.

That is, the grip member 160 has a continuous ring shape from the tip to the rear end, and the inner diameter is formed to have a larger diameter than the outer diameter of the body 110, and the neighboring rings are formed at mutually spaced positions. Accordingly, the gripping member 160 does not directly contact the body 110, minimizing the transfer of heat generated from the body 110, and at the same time, the heat generated in the body 110 is discharged to the outside through the gap between the ring and the ring The water temperature of the installation member 200 can be increased.

In the meantime, although it has been shown in the drawing that the gripping member 160 is formed as a continuous annular shape, that is, in the form of a normal spring, it is an embodiment, and each of the annular rings 161 The fitting hole 162 is formed in the annular ring 161 of the coupling part 163 to be engaged with the coupling rod 163. The fitting groove 162 is formed in the fitting part 162a to which the connecting rod 163 is coupled and the fitting part 162a And a pair of elastic portions 162b that are extended and protrude toward the center of the fitting portion 162a.

A plurality of the annular rings 161 are spaced apart from each other with a hole through which the body 110 is inserted. The inner diameter of the hole is larger than the outer diameter of the body 110 So that the annular ring 161 and the body 110 are prevented from being in direct contact with each other.

It is preferable that the fitting groove 162 is formed in the rim of the annular ring 161, and at least one pair of the fitting groove 162 is disposed in a mutually symmetrical direction. The connecting portion 163 is formed in a shape corresponding to the sectional shape of the connecting rod 163 so that the connecting portion 163 is coupled to the connecting portion 163. The elastic portion 162b is engaged with the connecting rod 163 The connecting rod 163 is returned to its original position due to its own elasticity after passing through the connecting rod 163 to prevent the connecting rod 163 from being detached from the fitting portion 162a. That is, the fitting grooves 162 are formed in a substantially horseshoe shape as a whole, and both end portions protrude toward the center to have elasticity.

When the gripping members 160 are coupled to the body 110, a pair of the separating plates 111 are disposed at mutually spaced positions, and the gripping members 160 are disposed therebetween, Is prevented from separating from the body 110.

The operator can grasp the body 110 in a state where the power is applied through the grasping member 160 and change the position thereof so that the position can be changed without lowering the water temperature of the installation member, It is possible to prevent breakage of the joint portion of the power cable 121 or the joint portion between the lead wire 121 and the power cable P / W, and at the same time, when the body is moved, The power cable (P / W) or the body 110 can be prevented from being detached from the cover 117 to maintain watertightness.

The extension cable 310 of the present invention is provided at the rear end of the body 110 and can be disposed inside or outside the installation member 200. The extension cable 310 is flexible And a power cable (P / W) is disposed therein.

At this time, it is preferable that the distal end of the extension cable 310 is disposed inside the cover 117 to maintain watertightness. Further, the rear end of the extension cable 310 is connected to the temperature control unit 320 to be described later so that the power cable P / W disposed therein is connected to the temperature control unit 320.

The extension cable 310 may extend in the longitudinal direction at the rear end of the body 110 so as to be installed in various installation environments. That is, since the extension cable 310 is formed in a flexible form in which the angle of the extension cable 310 is freely adjusted, it is adaptable even if the installation space is formed of 'a', 'c', 'S' Reference)

The extension cable 310 may be formed in a plurality of cables, and one extension cable may be formed in a telescopic form in and out of the extension cable at the other end. At this time, a separate watertight cap 311 (Refer to the lower original of Fig. 13).

The temperature regulator 320 is for controlling the temperature of the heating rod 120 according to the temperature of the heating rod 120 sensed through the temperature sensor 151 or the temperature inside the mounting member 200, A dial 321 disposed at the rear end of the extension cable 310 for adjusting the temperature and a lamp 322 for visually recognizing the operation status.

The temperature regulator 320 can confirm the temperature sensed through the temperature sensor 151 through the lamp 322 or the display 323 and can set the proper temperature by operating the dial 321, The temperature inside the member 200 can be prevented from being overheated.

Further, the temperature regulator 320 may further include a temperature control circuit (not shown) inside the dial 321 to manually control the temperature of the heating rod 120 to a predetermined temperature range It can be adjusted automatically. At this time, the temperature control circuit may be replaced with the overheating preventing unit 150, and the overheating preventing unit 150 may be integrally disposed inside the temperature controlling unit 320. [

Preferably, the lamp 322 includes at least two LEDs capable of expressing at least two colors. In another embodiment, a plurality of single-color LEDs emitting light of different colors may be arranged.

The underwater heater 100 according to the present invention having such a configuration is different from the conventional one in that the inflow of water by the second filler 140 having the heating bar 120 inserted in the body 110 is formed in a plurality of layers, The underwater heater 100 with high reliability can be supplied.

The space portion 115 in which the second filler 140 can be injected is formed to have a gap of a predetermined distance even if the heat generating rod 120 is inserted into the body 110 by the first filler 130, It is possible to provide the underwater heater 100 with a uniform ratio of heat output through the body 110.

In addition, a plurality of bodies 110 may be provided through the separating plate 111 differently from the conventional one, and it is also possible to prevent direct contact between the mounting member 200 and the heating body 110, It is possible to provide an underwater heater.

Further, since the heating bar is disposed inside the body, it is possible to prevent the heating bar from being rusted by direct contact with water, or the inside of the mounting member which is in direct contact with the heating bar can be prevented from being burned.

Further, since the temperature adjusting unit is disposed at a position spaced apart from the mounting member through the extension cable, convenience of use can be improved and the installation space can be installed in a narrow or curved position.

Further, since the body, which is disposed inside the heating bar by the gripping member, is disposed so as not to directly come into contact with the inner circumferential surface of the mounting member, there is an advantage that a separate heater hanger is not necessary.

In another embodiment of the present invention, a plurality of heat generating rods 120a and 120b, which generate heat at mutually different temperatures, are provided in the body 110, and the heat generating rods 120a and 120b are heated And a bimetal switch 180 for supplying or blocking electricity to one side of the heat generating rod while being in contact with or falling off from the heat generating rod.

12, a plurality of heat generating rods 120a and 120b are disposed at predetermined intervals in the body 110. The heat generating rods 120a and 120b are connected to a power source So that the maximum temperature is generated at different temperatures.

That is, for example, when the proper heat generating temperature of one of the heat generating rods 120a is 60 占 폚, the proper heat generating temperature of the other heat generating rods 120b is 100 占 폚, So as to maintain the temperature at the average value of the appropriate heating temperature values of the rods.

Here, the proper heating temperature value refers to a temperature within a range in which the heating rod does not overheat upon heating, which can be controlled by various environments (such as the area of the mounting member, the amount of water accommodated in the mounting member, The above-mentioned appropriate heating temperature is not particularly limited.

The bimetal switch 180 is disposed between the adjacent heat generating rods 120a and 120b and has one end fixed to the lead wire 121 of one of the heat generating rods 120a and the other end fixed to the other end of the heat generating rods 120b And is arranged to be in contact with the lead wire 121.

At this time, it is preferable that one of the fixed ends is fixed to the heat generating bar relatively lower than the other heat generating rods 120a among the adjacent heat generating rods 120a and 120b.

That is, the bimetal selector 180 includes a bimetal that is bent or returned to its original position in response to a temperature change. The bimetal selector 180 includes a heating bar 120a having a relatively low heating temperature, The power is supplied or cut off according to the heating temperature of the other heat-generating rod 120b whose one end is fixed and the relative heat-generating temperature is relatively high.

Accordingly, when the temperature of the body 110 is overheated, the power supplied to the heating rod is shut off to overheat the water. It is possible to prevent an accident caused by the accident.

12, a pair of heat generating rods disposed adjacent to each other is disposed, but this is an embodiment, and a plurality of heat generating rods may be disposed as needed.

The scope of protection of the present invention is not limited to the embodiments described above. Any person skilled in the art will be able to variously modify or change the present invention without departing from the spirit and scope of the present invention. It can be understood that it is possible.

100: Underwater heater according to the present invention
110: body 111:
113: through hole 115:
117: Cover 120:
121: lead wire 130: first filler
140: second filler 150: overheat prevention part
151: Temperature sensor 160:
161: annular ring 162: fitting groove
162a: fit portion 162b:
163: connecting rod 170: bimetal switch
180: bimetal switch part 200: installation member
310: extension cable 320: temperature control unit
Z: Whole section Z1, Z2, Z3: Injection restricted zone

Claims (5)

A tubular body 110;
A heating rod 120 inserted into the body 110 and provided to be able to generate heat by an applied power source and to control the temperature of water contained in the mounting member 200;
A first filler 130 filled in the body 110 to form a space 115 between the outer surface of the heating rod 120 and the inner surface of the body 110,
The heating rod 120 is filled in the space 115 and hardened after a predetermined period of time to fix the heating rod 120 inserted into the body 110 and water contained in the mounting member 200 flows into the body 110 A second filler 140 that blocks entry of the second filler 140,
An extension cable 310 disposed at a rear end of the body 110 and having a flexible shape for easy adjustment of the angle; And
And a temperature regulator (320) disposed at one end of the extension cable (310) and controlling a heating temperature of the heating rod (120). 2. The apparatus of claim 1, wherein the body (110)
And a separator plate 111 having an outer diameter larger than the outer diameter of the body 110 to prevent the body 110 from directly contacting the attachment member 200,
At least one through hole 113 through which the body 110 is inserted is formed in the spacing plate 111 and is fixed to the body 110 or movable along the longitudinal direction of the body 110 And the water heater is installed. The method of claim 1, wherein the first filler (130)
At least one of sand or magnesite having a particle shape and having a thermal conductivity so as to be inserted into the body 110 before the second filler 140 and insert the upper portion of the heat generating rod 120 And the water heater is one. The method of claim 1, wherein the second filler material (140)
Wherein the silicone is injected into the body (110) in a liquid state and cured after a predetermined time, and is hardened into a plurality of layers with a time difference within the body (110). 2. The apparatus of claim 1, wherein the body (110)
Further comprising a gripping member (160) formed in a ring shape having an inner diameter larger than an outer diameter of the body (110), the gripping member (160) having adjacent rings spaced apart from each other.

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