CN211041376U

CN211041376U - Electric heating device

Info

Publication number: CN211041376U
Application number: CN201921517031.9U
Authority: CN
Inventors: 邝继伍; 邝继平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-17
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses an electric heating device, including heat conduction piece, inlet tube, outlet pipe, water inlet, delivery port. The utility model discloses the rivers passageway on the heat conduction piece is by the through-hole on the heat conduction piece through the sealing pad, gland through fastener sealed back, and the rivers passageway that forms, as an organic whole with the heat conduction piece, its heating is effectual. The through hole of the heat conducting block can be cleaned by disassembling the sealing gasket and the gland during maintenance, the electric heater can be conveniently taken out from the cavity of the heat conducting block for replacement, and the electric heater is in non-conductive contact with the heat conducting block, so that the electric heater is safer to use and simpler to maintain. The utility model discloses can effectually absorb electric heater's waste heat, the waste heat that has realized electric heater can not lead to the fact great influence to a water end temperature for high temperature in the twinkling of an eye can not appear in the temperature of output, arouses that the temperature control effect is poor, influences the comfort level that the user used.

Description

Electric heating device

Technical Field

The utility model relates to an electric heater technical field, concretely relates to electric heating device.

Background

At present, the electric heater is very commonly applied, the metal heater is used in an electric water heater and used in equipment such as a heater, and as shown in fig. 1 and fig. 2, an electric heating component and a heating component of the metal heater are integrated, after the metal heater is damaged, the metal heater is generally not maintained due to high repair cost, and is directly replaced by a new metal heater, so that the resource requirement is greatly wasted. The metal heater used in the instant water heater is limited by the volume and the space, the length of a heating pipe in the metal heater is limited, the heat load on the pipe wall of the heating pipe is very large, scale is very easy to generate, and the heat energy emitted by the metal heater cannot be well diffused to the heated water from the pipe wall of the heating pipe of the heater due to the scale, so that the temperature in the heating pipe of the metal heater is overhigh, and the damage is caused. The pipe wall of the heating pipe of the metal heater is directly contacted with the heated water flow, when the electric leakage phenomenon occurs in the metal heater, the heated water flow is electrified, metal parts in the electric water heater, which are contacted with the water flow, are electrified, so that great potential safety hazards exist, and the water temperature output of the conventional heat conducting block heating device is not stable enough and needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of electric heater unit can conveniently disassemble and change electric heater, easy operation, and the maintenance cost is low, uses safelyr, and the output temperature is more stable.

In order to solve the above problems, the utility model provides an electric heating device, which comprises a heat conducting block, a water inlet pipe, a water outlet pipe, a water inlet and a water outlet; the heat conducting block is provided with a through hole, the head end and the tail end of the through hole are provided with notches, and the through hole and the notches form a closed water flow channel after being sealed by a sealing cover and a sealing pad; the heat conducting block is also provided with a cavity, and an electric heater is placed in the cavity; the heat conducting block is in a square block shape, a circle of through holes are formed in the heat conducting block, two to four rows of through holes are formed in the water inlet pipe and the water outlet pipe, and two or more than two through holes are formed in the water outlet end through hole and the water inlet end through hole and are arranged adjacently; or when the heat conducting block is set to be circular or square, the through hole is set to be an inner layer and an outer layer, the water inlet pipe is communicated with the through hole of the inner layer through the water inlet through hole, and the water outlet pipe is communicated with the through hole of the outer layer through the water outlet through hole.

The water inlet pipe and the water outlet pipe are led out from two ends of the through hole of the heat conducting block or from the side surface of the heat conducting block; the water inlet pipe and the water outlet pipe are arranged at one end of the through hole on the heat conducting block or are respectively arranged at two ends of the through hole on the heat conducting block.

And two rows of through holes or three rows of through holes are arranged at the other ends of the heat conducting block corresponding to the water inlet through holes and the water outlet through holes.

The electric heater arranged in the cavity on the heat conducting block is a light wave electric heater, or a ceramic electric heater, or a carbon film electric heater, or an electromagnetic heater.

The water flows of the water inlet pipe and the water outlet pipe on the heat conducting block are arranged to be input and output in a cross mode.

The control panel is electrically connected with the power port; the water inlet end is provided with a flow sensor, and the water outlet end is provided with a temperature sensor; the electric heater, the flow sensor and the temperature sensor are respectively electrically connected with the control panel.

The front and back of the heat conducting block are provided with grooves, and the grooves are provided with sealing covers. And an isolation hole is arranged between the water inlet through hole and the water outlet through hole.

Above-mentioned technical scheme can see, the utility model discloses the rivers passageway on the heat conduction piece among the electric heater unit is by the through-hole on the heat conduction piece through the gasket, gland through fastener sealed back, the rivers passageway that forms, as an organic whole with the heat conduction piece, and it heats effectually. The through hole of the heat conducting block can be cleaned by disassembling the sealing gasket and the gland during maintenance, the electric heater can be conveniently taken out from the cavity of the heat conducting block for replacement, and the electric heater is in non-conductive contact with the heat conducting block, so that the electric heater is safer to use and simpler to maintain. The utility model discloses can also effectually absorb electric heater's waste heat, the waste heat that has realized electric heater can not lead to the fact great influence to a water end temperature for high temperature in the twinkling of an eye can not appear in the temperature of output, arouses that the temperature control effect is poor, influences the comfort level that the user used.

Drawings

To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described as follows:

fig. 1 is a schematic view of an internal structure of a conventional metal heater.

Fig. 2 is a schematic structural diagram of a conventional electric heating device.

Fig. 3 is a schematic view of the heat conducting block of the present invention being a square-shaped front structure.

Fig. 4 is a schematic view of the heat-conducting block of the present invention being a square back structure.

Fig. 5 is a schematic view of the structure of the heat conduction block of the present invention, which is a square shape and has a side water inlet.

Fig. 6 is a schematic view of the structure of the heat conduction block of the present invention, which is a square shape and has a water inlet on the front side.

Fig. 7 is a schematic view of the front structure of the heat conducting block of the present invention, which is a square block with two through holes at two ends.

Fig. 8 is a schematic view of the structure of the heat conduction block with two layers of through holes at two ends of a square shape.

Fig. 9 is a schematic view of the heat conducting block of the present invention being a square vertical decomposition structure.

Fig. 10 is a schematic view of the front structure of the heat conducting block with two layers of through holes.

Fig. 11 is a schematic diagram of the structure of the back surface of the heat conducting block with two layers of through holes.

Fig. 12 is a schematic structural view of the heat conducting block of the present invention having two layers of through holes for the front water inlet and outlet pipes.

Fig. 13 is a schematic structural view of the heat conducting block of the present invention having two layers of through holes and a water inlet pipe at the side.

Fig. 14 is a schematic view of the structure of the heat conducting block of the present invention with two layers of through holes at the water inlet and outlet ends and water flow alternately entering and exiting from the front side.

Fig. 15 is a schematic view of the structure of the heat conducting block of the present invention, in which two layers of through holes are formed at the water inlet and outlet ends and the water flow alternately enters and exits from the back surface.

Fig. 16 is a schematic view of the structure of the heat conducting block of the present invention in which the water inlet and outlet ends are provided with two layers of through holes and the water flow alternately enters and exits.

Detailed Description

The technical solution in the embodiments of the present invention will be further described below with reference to the accompanying drawings in the present invention:

as shown in fig. 3, fig. 4, fig. 5, fig. 6, fig. 9, fig. 12, and fig. 16, the present invention provides an electric heating apparatus, which includes a heat conduction block 1, a water inlet pipe 21, a water outlet pipe 22, a water inlet 31, and a water outlet 32; the heat conducting block 1 is provided with a through hole 11, the head end and the tail end of the through hole 11 are provided with gaps 12, and the through hole 11 and the gaps 12 form a closed water flow channel after being sealed by sealing covers 41 and 42. The heat conducting block 1 is provided with a cavity 16, and an electric heater is placed in the cavity 16. The water inlet pipe 21 and the water outlet pipe 22 are led out from two ends of the through hole 11 on the heat conducting block 1 or from the side surface of the heat conducting block 1; the water inlet pipe 21 and the water outlet pipe 22 are arranged at one end of the through hole 11 on the heat conducting block 1, or are respectively arranged at two ends of the through hole 11 on the heat conducting block 1.

As shown in fig. 3, 4, 5, and 6, when the heat conducting block 1 is a square block, a circle of through holes 11 are formed on the heat conducting block 1, two to four rows of water inlet cooling through holes 11 are formed at the ends of the water inlet pipe 21 and the water outlet pipe 22 of the heat conducting block 1, and at least two through holes 11 are formed adjacent to the water outlet through holes 11 and the water inlet through holes 11; because the through holes 11 are arranged adjacently, the mutual influence of the water temperatures is large. Because the temperature of the through hole 11 at the water inlet end is lower, the water inlet end cooling through hole 11 can effectively absorb the waste heat of the electric heater and can also absorb the waste heat of the through hole 11 at the water outlet end. The water temperature output by the heat conduction block 1 is less affected by the waste heat of the electric heater.

As shown in fig. 7, 8 and 9, when the electric heating device is vertically installed, the space at the top of the electric heating device is small, so that the residual heat of the electric heater automatically rises to the top, the water temperature at the top is increased greatly, and the electric heating device is easy to generate scale. In order to reduce the excessive temperature rise of the top of the electric heating device caused by the waste heat, two to three rows of through holes 11 are arranged on the top of the electric heating device. Because the specific heat of water is great, can effectively reduce the temperature of the top water, reduce the production of incrustation scale to play the effect that reduces the maintenance.

As shown in fig. 10, 11 and 13, the through hole 11 of the heat conducting block 1 is arranged as an inner layer and an outer layer, the water inlet pipe 21 is communicated with the through hole 11 of the inner layer through the water inlet through hole 111, and the water outlet pipe 22 is communicated with the through hole 11 of the outer layer through the water outlet through hole 112. Because the through hole 11 at the inner layer is the through hole 11 at the water inlet end, the water temperature is lower, and meanwhile, the water is close to the electric heater, so the heating effect is better; the outer layer through hole 11 is a water outlet end through hole 11 and is far away from the electric heater, so that the heating effect of the electric heater is poorer than that of the inner layer through hole 11, and the heating temperature rise is slower. And because the water outlet through hole 112 is close to the water inlet through hole 111, the water temperature of the water inlet end through hole 11 is low, so that the waste heat of the electric heater can be well absorbed, and the waste heat of the electric heater cannot influence the water temperature of the water outlet end through hole 11.

As shown in fig. 14, 15 and 16, when the heat conduction block 1 is square or circular, in order to reduce the size of the outer diameter of the heat conduction block 1 and reduce the influence of the waste heat of the electric heater on the water temperature at the water outlet end, the water inlet end and the water outlet end of the heat conduction block 1 are provided with two layers of through holes 11, and the other positions are provided with one layer of through holes 11, and the water inlet end through holes 11 and the water outlet end through holes 11 are arranged in a water flow direction in a crossed manner. Because the temperature of the water inlet end is lower, the waste heat of the heat conduction block 1 rises slowly, and meanwhile, the temperature of the higher waste heat in the through hole 11 at the water outlet end of the heat conduction block 1 can be absorbed and recycled, so that the temperature of the outlet water cannot be overhigh instantaneously due to the waste heat.

The electric heater disposed in the cavity 16 of the heat conducting block 1 may be a light wave electric heater, a ceramic electric heater, a carbon film electric heater, or an electromagnetic heater, depending on the application.

In order to stabilize the water temperature output by the electric heating device, a control panel is arranged and is electrically connected with a power supply port; a flow sensor is arranged at the end of the water inlet 31, and a temperature sensor is arranged at the end of the water outlet 32; the electric heater, the flow sensor and the temperature sensor are respectively electrically connected with the control panel.

The flow sensor can sense the inflow of water and realize the control effect of water supply and electrification, the temperature sensor can sense the temperature of the outlet water, and after the temperature is set, the heating power of the electric heater can be automatically adjusted to realize the stability of the temperature of the outlet water; and the display of the temperature of the water outlet of the electric heating device is realized.

In order to facilitate the installation and positioning of the

sealing caps

41 and 42 on the heat conducting block 1, or to prevent water flow in the through hole 11 from permeating into the cavity 16 of the heat conducting block 1 due to poor sealing performance, grooves 15 are provided on the front and back surfaces of the heat conducting block 1, as shown in fig. 7, 8, 14 and 15.

As shown in fig. 10 and 11, in order to reduce the structural influence caused by the combined processing of the electric heating device and the water inlet pipe 21 and the water outlet pipe 22, an isolation hole 17 is provided between the water inlet through hole 111 and the water outlet through hole 112.

The existing electric heating device is disconnected from water inlet, the flow sensor does not sense the flow of water, a signal is transmitted to the control panel, and the electric heater is controlled to stop working. At this moment, the electric heater or the waste heat on the heat conduction block 1 continues to heat the water in the through hole 11, and the water in the through hole 11 can be heated for a period of time due to the fact that the water inflow rate does not exist, so that the water temperature at the water outlet end is higher.

Then, water is introduced again, because the water temperature of the water outlet end of the heat conduction block 1 is higher, the temperature sensor senses the water temperature affected by the waste heat, the control panel controls the electric heater to be out of work due to high water outlet temperature, when the temperature of the water inlet flow on the temperature sensor is reduced, the control panel controls the electric heater to work again, the water outlet temperature of the electric heating device is unstable, and the temperature control effect is poor.

The utility model can reduce the influence degree of the water temperature at the water outlet end of the heat conducting block 1 by the waste heat of the electric heater to be lower, so that the water temperature sensed by the temperature sensor is more stable; the phenomenon that the electric heater does not work due to the fact that the temperature sensor senses the water temperature of the waste heat at the moment of high-temperature waste heat is avoided, and the technical problem that an electric heating device is poor in temperature control effect due to the waste heat is solved.

For better understanding of the technical effects of the present invention, the electric heating device of the present invention is further described, as shown in fig. 3, fig. 4, and fig. 5:

1. water flow of a water source or water supply equipment enters from a water inlet 31 and flows into the water inlet through hole 11 at the water inlet end of the heat conduction block 1 through the water inlet pipe 21, the water flow firstly flows through the waste heat absorption through hole 11 consisting of the two rows of through holes 11, then flows through the water flow channel formed by the through holes 11 at the two sides of the heat conduction block 1, and finally flows out from the water outlet pipe 22 communicated with the through hole 11 at the water outlet end of the heat conduction block 1 through the water outlet 32.

2. In the bathing process, when water flows through the water inlet 31, the flow sensor on the water inlet 31 senses the water flow and transmits a signal to the control panel, and the control panel controls the electric heater to heat.

3. When cold water flows through the heat conduction block 1, the electric heater in the cavity 16 on the heat conduction block 1 heats the heat conduction block 1, and water flowing through the through hole 11 in the heat conduction block 1 can absorb heat energy on the heat conduction block 1, absorb the heat energy, and then output the heat energy to water consumption equipment through the water outlet 32 through the water outlet pipe 22.

4. When the heated water flows through the water outlet 32 and is sensed by the temperature sensor, a signal is transmitted to the control board to control the heating power of the electric heater, so that the temperature of the water output by the electric heater is the set temperature.

5. After the water inlet is cut off, the flow sensor does not sense the flow of the water, and transmits a signal to the control panel to control the electric heater to stop working; at this time, the electric heater or the residual heat on the heat conduction block 1 continues to heat the water in the through hole 11. The cooling through hole 11 arranged at the water inlet end can well absorb the waste heat of the electric heater, and can also absorb the higher water temperature of the through hole 11 at the water outlet end, so that the water temperature of the water outlet end of the heat conduction block 1 cannot be too high instantly, and the normal work of the electric heater is influenced.

6. Then when water is passed through once more, because electric heater's waste heat can not make electric heater stop work, make the utility model discloses electric heater unit heating effect is better, and leaving water temperature is more stable.

Claims

1. The utility model provides an electric heating device, includes heat conduction piece (1), inlet tube (21), outlet pipe (22), water inlet (31), delivery port (32), its characterized in that: the heat conducting block (1) is provided with a through hole (11), the head end and the tail end of the through hole (11) are provided with notches (12), and the through hole (11) and the notches (12) form a closed water flow channel after being sealed by sealing covers (41, 42); the heat conducting block (1) is also provided with a cavity (16), and an electric heater is placed in the cavity (16); the heat conducting block (1) is in a square block shape, a circle of through holes (11) are formed in the heat conducting block (1), two to four rows of through holes (11) are formed in the ends of the water inlet pipe (21) and the water outlet pipe (22), and two or more than two through holes (11) are formed in the through holes (11) at the water outlet end and the through holes (11) at the water inlet end and are arranged adjacently; or when the heat conducting block (1) is round or square, the through hole (11) is arranged into an inner layer and an outer layer, the water inlet pipe (21) is communicated with the inner layer through hole (11) through the water inlet through hole (111), and the water outlet pipe (22) is communicated with the outer layer through hole (11) through the water outlet through hole (112).

2. An electric heating apparatus according to claim 1, characterized in that: the water inlet pipe (21) and the water outlet pipe (22) are led out from two ends of the through hole (11) on the heat conducting block (1) or from the side surface of the heat conducting block (1); the water inlet pipe (21) and the water outlet pipe (22) are arranged at one end of the through hole (11) on the heat conducting block (1), or are respectively arranged at two ends of the through hole (11) on the heat conducting block (1).

3. An electric heating apparatus according to claim 1, characterized in that: two rows or three rows of through holes are arranged at the other ends of the heat conducting block (1) corresponding to the water inlet through hole (111) and the water outlet through hole (112).

4. An electric heating apparatus according to claim 1, characterized in that: the electric heater arranged in the cavity (16) on the heat conducting block (1) is a light wave electric heater, a ceramic electric heater, a carbon film electric heater or an electromagnetic heater.

5. An electric heating apparatus according to claim 1, characterized in that: water flow in the through holes (11) at the ends of the water inlet pipe (21) and the water outlet pipe (22) on the heat conducting block (1) is set to be input and output in a crossed manner.

6. An electric heating apparatus according to claim 1 or 4, characterized in that: the control panel is electrically connected with the power port; a flow sensor is arranged at the water inlet (31) end, and a temperature sensor is arranged at the water outlet (32) end; the electric heater, the flow sensor and the temperature sensor are respectively electrically connected with the control panel.

7. An electric heating apparatus according to claim 1, characterized in that: the front and the back of the heat conducting block (1) are provided with grooves (15), and sealing covers (41, 42) are placed on the grooves (15).

8. An electric heating apparatus according to claim 1, characterized in that: an isolation hole (17) is arranged between the water inlet through hole (111) and the water outlet through hole (112).