CN209744607U

CN209744607U - Air conditioner electric heating device

Info

Publication number: CN209744607U
Application number: CN201920312870.0U
Authority: CN
Inventors: 李嘉仪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2019-12-06
Anticipated expiration: 2029-03-13

Abstract

The utility model discloses an air conditioner electrical heating device relates to air conditioner technical field, and is big for solving current air conditioner electrical heating device potential safety hazard, and heat exchange efficiency is low, and heat transfer area is little, influences the result of use and the life's of whole device problem. The upper end of casing is provided with the epicoele, the below of epicoele is provided with the lumen, the below of lumen is provided with the cavity of resorption, the both sides of epicoele all are provided with vice air discharge bars, the bars door is installed to one side of vice air discharge bars, the front end of epicoele is provided with main air discharge bars, the both sides of cavity of resorption all are provided with the air suction bars, first dust screen is all installed to the inside both sides of cavity of resorption, the internally mounted of cavity of resorption has the forced draught blower, the fixed plate is all installed at the upper and lower both ends of forced draught blower, the internally mounted of forced draught blower has the forced draught blower blade, the second dust screen is installed to the front end of forced draught blower blade, the internally mounted of lumen.

Description

Air conditioner electric heating device

Technical Field

The utility model relates to an air conditioner technical field specifically is an air conditioner electrical heating installation.

Background

The air conditioner is a device which makes the refrigerant inside the air conditioner perform refrigeration or heating circulation consisting of a compression process, a condensation process, an expansion process and an evaporation process, when the air conditioner performs the refrigeration circulation, the refrigerant which is compressed by a compressor and becomes a high-temperature and high-pressure state can radiate heat to the outside in a condenser, the temperature and the pressure of the refrigerant are obviously reduced when the refrigerant flows through an expansion valve, then the low-temperature and low-pressure refrigerant can absorb heat when flowing through an evaporator and finally flow back to the compressor again, along with the requirement of modern technology development, higher requirements are provided for the application of the air conditioning equipment, the air conditioner not only requires refrigeration but also heating, and the air conditioner also requires normal heating work in a special place under the low-temperature environment lower than forty-five degrees centigrade.

however, the existing air-conditioning electric heating device has the disadvantages of large potential safety hazard, low heat exchange efficiency and small heat exchange area, and influences the use effect and the service life of the whole device; therefore, the existing requirements are not met, and an air-conditioning electric heating device is provided for the air-conditioning electric heating device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air conditioner electrical heating installation to the current air conditioner electrical heating installation potential safety hazard that proposes in solving above-mentioned background art is big, and heat exchange efficiency is low, and heat transfer area is little, influences the result of use and the life's of whole device problem.

In order to achieve the above object, the utility model provides a following technical scheme: an air conditioner electric heating device comprises a shell, wherein an upper cavity is arranged at the upper end of the shell, a middle cavity is arranged below the upper cavity, a lower cavity is arranged below the middle cavity, secondary air discharge grids are arranged on two sides of the upper cavity respectively, a grid door is installed on one side of each secondary air discharge grid, a main air discharge grid is arranged at the front end of the upper cavity, air suction grids are arranged on two sides of the lower cavity respectively, a first dust screen is installed on two sides of the inner part of the lower cavity, a blower is installed in the lower cavity, fixing plates are installed at the upper end and the lower end of the blower respectively, blower blades are installed in the blower, a second dust screen is installed at the front end of each blower blade, an evaporator is installed in the middle cavity, a first electric heater is installed in the upper cavity, and a second electric heater is installed above the first electric heater, and a third electric heater is arranged above the second electric heater.

preferably, the vice air discharge bars are provided with two, the epicoele passes through hinge connection with the bars door, and the air suction bars are provided with two, the cavity passes through the screw connection with first dust screen down, the fixed plate passes through the screw connection with the forced draught blower, the fixed plate is provided with two, the forced draught blower splices with the second dust screen and is connected, lumen and evaporimeter fixed connection, the epicoele passes through the draw-in groove with first electric heater and is connected, the epicoele passes through the draw-in groove with the second electric heater and is connected, the epicoele passes through the draw-in groove with the third electric heater and is connected.

Preferably, the externally mounted of evaporimeter has the frame, first fixed shim is installed to the rear end of evaporimeter, temperature relay is installed to first fixed shim's rear end, the glass fiber sleeve pipe is installed to temperature relay's one side, the sheathed tube internally mounted of glass fiber has the wire, the second fixed shim is installed to one side of wire, the thermal fuse is installed to the rear end of second fixed shim, the fin is installed to the front end of evaporimeter, the internally mounted of evaporimeter has the copper pipe.

Preferably, the evaporator is fixedly connected with the outer frame, the evaporator is connected with the first fixing gasket through screws, the evaporator is connected with the second fixing gasket through screws, the temperature relay is electrically connected with the thermal fuse, the temperature relay is electrically connected with the lead, and the thermal fuse is electrically connected with the lead.

Preferably, fixed frames are installed on two sides of the first electric heater, an electric heating pipe is installed inside the first electric heater, and a groove is formed in one side of each fixed frame.

Preferably, the first electric heater is fixedly connected with the fixed frame, and the first electric heater is electrically connected with the electric heating pipe.

Preferably, the inner part of the upper cavity is provided with a convex block, the outer part of the convex block is provided with an elastic part, and the upper end and the lower end of the convex block are provided with fixing clamping beads.

preferably, the upper chamber and the projection are arranged to be of an integrally formed structure, the upper chamber and the fixing clamp bead are arranged to be of an integrally formed structure, and the projection is connected with the elastic piece in a gluing mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. The utility model discloses an install temperature relay and thermal fuse at the rear end of evaporimeter, when evaporimeter surface temperature is higher than one-level regulation temperature value, the temperature relay contact of first order protection can jump off, thereby the working circuit of electric heater breaks off, make electric heater stop work, avoid it to continue to heat and make the temperature too high, temperature relay and thermal fuse hierarchical action have been adopted, the overheated second grade protection of air conditioner electric heating has been realized, the inside forced draught blower of air conditioner does not operate has been solved effectively, first electric heater, second electric heater and third electric heater still continue the possibility that work produced heat, evaporimeter surface temperature is too high when preventing the air conditioner electric heating and arouse that the surrounding part temperature rises to warp or the heat accumulation causes the conflagration, the security of whole electric heating device has been guaranteed;

2. The utility model discloses a both sides in the cavity of resorption are all installed first dust screen, install the second dust screen at the front end of forced draught blower, when the suction air, the air filters the dust through the dust screen, make the dust be difficult for gluing on the fin, avoided the inside deposition in each cavity, influence the effect of each part work, increase the thickness of the copper pipe in the evaporimeter, increase the interval of fin, the interval is two points five to three millimeters, adopt thick wall copper pipe, promote the work efficiency of evaporimeter, spray the non-stick layer of Teflon on the surface of fin and copper pipe, avoid the deposition, strengthen the result of use and the life of whole device;

3. The utility model discloses an install first electric heater, second electric heater and third electric heater in the inside of epicoele, install electric heating pipe in the upper end of each electric heater, increased the area of contact of heat-generating body and air, improved the heat transfer coefficient, simultaneously, electric heating pipe is rectangular shape, does not increase the processing degree of difficulty, and the assembly is simple and convenient, has improved heat exchange area greatly to improve the heating efficiency of whole electric heating device;

4. The utility model discloses an all install the lug in the inside both sides of epicoele, be provided with the elastic component at the surface of lug, fixed frame is all installed to each electric heater's both sides, and one side of fixed frame is provided with the recess, and the recess is mutually supported with the lug, and the installation is simple, and it is convenient to dismantle, all installs the fixing clip pearl in the top of lug and below, strengthens fixed stability, and the elastic component provides the effect of buffering, and noise abatement prevents electric heater vibrations in electric heater's working process.

Drawings

Fig. 1 is an overall three-dimensional perspective view of an air-conditioning electric heating device of the present invention;

FIG. 2 is a schematic structural view of an electric heating device of an air conditioner of the present invention;

Fig. 3 is a rear view of the evaporator of the present invention;

fig. 4 is a front view of the evaporator of the present invention;

Fig. 5 is a schematic structural view of the electric heater of the present invention;

Fig. 6 is a partial enlarged view of the region a of the present invention.

in the figure: 1. a housing; 2. an upper chamber; 3. a middle cavity; 4. a lower cavity; 5. a secondary air discharge grid; 6. a gate; 7. a primary air exhaust grill; 8. an air intake grill; 9. a first dust screen; 10. a blower; 11. a fixing plate; 12. a blower blade; 13. a second dust screen; 14. an evaporator; 15. a first electric heater; 16. a second electric heater; 17. a third electric heater; 18. an outer frame; 19. a first fixed spacer; 20. a temperature relay; 21. a fiberglass sleeve; 22. a wire; 23. a second fixed shim; 24. a thermal fuse; 25. a heat sink; 26. a copper pipe; 27. fixing the frame; 28. an electric heating tube; 29. a groove; 30. a bump; 31. fixing the clamping beads; 32. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, the present invention provides an embodiment: an electric heating and warming device of an air conditioner comprises a shell 1, wherein the upper end of the shell 1 is provided with an upper cavity 2, a middle cavity 3 is arranged below the upper cavity 2, a lower cavity 4 is arranged below the middle cavity 3, both sides of the upper cavity 2 are provided with secondary air discharge grids 5, one side of each secondary air discharge grid 5 is provided with a grid door 6, the front end of the upper cavity 2 is provided with a main air discharge grid 7, both sides of the lower cavity 4 are provided with air suction grids 8, both sides of the inner part of the lower cavity 4 are provided with first dust screens 9, the inner part of the lower cavity 4 is provided with a blower 10, both upper and lower ends of the blower 10 are provided with fixing plates 11, a blower blade 12 is arranged in the blower 10, the front end of the blower blade 12 is provided with a second dust screen 13, the inner part of the middle cavity 3 is provided with an evaporator 14, the inner part of the upper cavity 2 is provided with a first electric heater 15, a third electric heater 17 is installed above the second electric heater 16.

Further, the secondary air discharge grid 5 is provided with two, the upper cavity 2 is connected with the grid door 6 through a hinge, the air suction grid 8 is provided with two, the lower cavity 4 is connected with the first dust screen 9 through a screw, the fixing plate 11 is connected with the air feeder 10 through a screw, the fixing plate 11 is provided with two, the air feeder 10 is connected with the second dust screen 13 in a gluing mode, the middle cavity 3 is fixedly connected with the evaporator 14, the upper cavity 2 is connected with the first electric heater 15 through a clamping groove, the upper cavity 2 is connected with the second electric heater 16 through a clamping groove, the upper cavity 2 is connected with the third electric heater 17 through a clamping groove, the first dust screen 9 and the second dust screen 13 prevent dust from entering the device, the working effect of each mechanism is avoided being influenced, the secondary air discharge grid 5 increases the heat dissipation area, the device can achieve the heating purpose more quickly, the clamping groove is convenient to connect, install and disassemble, and.

Further, an outer frame 18 is installed outside the evaporator 14, a first fixing gasket 19 is installed at the rear end of the evaporator 14, a temperature relay 20 is installed at the rear end of the first fixing gasket 19, a glass fiber sleeve 21 is installed on one side of the temperature relay 20, a lead 22 is installed inside the glass fiber sleeve 21, a second fixing gasket 23 is installed on one side of the lead 22, a thermal fuse 24 is installed at the rear end of the second fixing gasket 23, a heat dissipation fin 25 is installed at the front end of the evaporator 14, a copper pipe 26 is installed inside the evaporator 14, the thickness of the copper pipe 26 in the evaporator 14 is increased, the distance between the heat dissipation fins 25 is increased, the distance is two points and five to three millimeters, the thick-wall copper pipe 26 is adopted, and the working efficiency of the evaporator 14 is improved, the surfaces of the radiating fins 25 and the copper pipes 26 are sprayed with Teflon non-stick layers, so that dust accumulation is avoided, the using effect of the whole device is enhanced, and the service life of the whole device is prolonged.

further, the evaporator 14 is fixedly connected with the outer frame 18, the evaporator 14 is connected with the first fixing gasket 19 through screws, the evaporator 14 is connected with the second fixing gasket 23 through screws, the temperature relay 20 is electrically connected with the thermal fuse 24, the temperature relay 20 is electrically connected with the lead wire 22, the thermal fuse 24 is electrically connected with the lead wire 22, and the temperature relay 20 and the thermal fuse 24 are adopted for grading action, so that the overheating secondary protection of the air conditioner electric heating is realized, the problem that the first electric heater 15, the second electric heater 16 and the third electric heater 17 are still continuously operated to generate heat when the air conditioner internal blower 10 does not operate is effectively solved, the possibility that the temperature of surrounding parts is increased and deformed or heat is accumulated to cause fire disasters due to overhigh surface temperature of the evaporator 14 during the air conditioner electric heating is prevented, and the safety of the whole electric heating device is ensured.

Further, fixed frames 27 are installed on two sides of the first electric heater 15, an electric heating tube 28 is installed inside the first electric heater 15, a groove 29 is formed in one side of each fixed frame 27, the groove 29 is matched with the bump 30, and the installation and the disassembly are simple.

Further, first electric heater 15 and fixed frame 27 fixed connection, first electric heater 15 and electric heating pipe 28 electric connection, electric heating pipe 28 are rectangular shape, do not increase the processing degree of difficulty, and the assembly is simple and convenient moreover, has improved heat exchange area greatly to improve whole electric heating device's the efficiency of heating.

Further, the inner portion of the upper chamber 2 is provided with a convex block 30, an elastic member 32 is mounted outside the convex block 30, the upper end and the lower end of the convex block 30 are provided with fixing clamping beads 31, and the elastic member 32 enables the convex blocks 30 to be more stably fixed with the first electric heater 15, the second electric heater 16 and the third electric heater 17, so that noise is reduced during operation, and vibration is reduced.

Furthermore, the upper cavity 2 and the bump 30 are integrally formed, the upper cavity 2 and the fixed clamping bead 31 are integrally formed, the bump 30 and the elastic piece 32 are connected in a gluing mode, the utilization rate of materials is high, the cost is low, stress concentration on all gluing surfaces is small, and therefore the fatigue resistance is good, and the sealing performance, the insulating performance and the corrosion resistance are good.

The working principle is as follows: when the evaporator 14 is used, the air blower 10 of the lower cavity 4 starts to work, the first dust screen 9 is arranged on two sides in the lower cavity 4, the second dust screen 13 is arranged at the front end of the air blower 10, when air is sucked, the air filters dust through the first dust screen 9 and the second dust screen 13, so that the dust is not easy to enter each cavity and is adhered to the radiating fins 25, the dust accumulation in each cavity is avoided, the working effect of each component is influenced, the thickness of the copper pipe 26 in the evaporator 14 is increased, Teflon non-adhesive layers are sprayed on the surfaces of the radiating fins 25 and the copper pipe 26, the phenomenon that foreign matters are adhered to the surfaces of the radiating fins 25 and the copper pipe 26 is avoided, the working efficiency is reduced, when the surface temperature of the evaporator 14 is higher than a first-level specified temperature value, the contact of the temperature relay 20 can jump, the first electric heater 15 is disconnected, the working circuits of the second electric heater 16 and the third electric heater 17 are disconnected, the temperature is prevented from being overhigh due to continuous heating, if the temperature relay 20 is in failure protection, when the heat accumulation on the outer surface of the evaporator 14 is higher than a second-level specified temperature value, the thermal fuse 24 is fused at the moment, thereby disconnecting the working circuit of each electric heater, and preventing the temperature of the surrounding parts from being raised and deformed or the heat accumulation from causing fire disasters due to the overhigh surface temperature of the evaporator 14, the glass fiber sleeve 21 protects the lead wire 22, the first electric heater 15, the second electric heater 16 and the third electric heater 17 are arranged in the upper cavity 2, the electric heating pipes 28 are arranged at the upper ends of the electric heaters, the electric heating pipes 28 are in a long strip shape, the processing difficulty is not increased, the assembly is simple and convenient, the heat exchange area is greatly increased, the heating efficiency of the whole electric heating device is improved, the contact area of the heating body and the air is increased, whole work efficiency is better, all is provided with vice air escape grid 5 in the both sides of last chamber 2, is provided with main air escape grid 7 at the front end of last chamber 2, has improved radiating space, makes the integrated device reach the purpose of heating sooner, and elastic component 32 provides the effect of buffering, noise abatement in each electric heater's working process, prevents that electric heater from shaking.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an air conditioner electrical heating installation, includes casing (1), its characterized in that: the dust-proof device is characterized in that an upper cavity (2) is arranged at the upper end of the shell (1), a middle cavity (3) is arranged below the upper cavity (2), a lower cavity (4) is arranged below the middle cavity (3), auxiliary air discharge grids (5) are arranged on two sides of the upper cavity (2), a grid door (6) is installed on one side of each auxiliary air discharge grid (5), a main air discharge grid (7) is arranged at the front end of the upper cavity (2), air suction grids (8) are arranged on two sides of the lower cavity (4), a first dust-proof net (9) is installed on two sides inside the lower cavity (4), a blower (10) is installed inside the lower cavity (4), fixing plates (11) are installed at the upper end and the lower end of the blower (10), blower blades (12) are installed inside the blower (10), and a second dust-proof net (13) is installed at the front ends of the blower blades (12), the interior mounting of lumen (3) has evaporimeter (14), the internally mounted of epicoele (2) has first electric heater (15), second electric heater (16) are installed to the top of first electric heater (15), third electric heater (17) are installed to the top of second electric heater (16).

2. an air conditioning, electric heating, and warming appliance as claimed in claim 1, wherein: vice air escape bars (5) are provided with two, epicoele (2) pass through hinge connection with bars door (6), and air suction bars (8) are provided with two, cavity of resorption (4) pass through screw connection with first dust screen (9), fixed plate (11) pass through screw connection with forced draught blower (10), fixed plate (11) are provided with two, forced draught blower (10) are connected with second dust screen (13) splice, lumen (3) and evaporimeter (14) fixed connection, epicoele (2) pass through the draw-in groove with first electric heater (15) and are connected, epicoele (2) are connected through the draw-in groove with second electric heater (16), epicoele (2) are connected through the draw-in groove with third electric heater (17).

3. An air conditioning, electric heating, and warming appliance as claimed in claim 1, wherein: the externally mounted of evaporimeter (14) has frame (18), first fixed shim (19) is installed to the rear end of evaporimeter (14), temperature relay (20) are installed to the rear end of first fixed shim (19), glass fiber sleeve pipe (21) are installed to one side of temperature relay (20), the internally mounted of glass fiber sleeve pipe (21) has wire (22), second fixed shim (23) are installed to one side of wire (22), thermal fuse (24) are installed to the rear end of second fixed shim (23), fin (25) are installed to the front end of evaporimeter (14), the internally mounted of evaporimeter (14) has copper pipe (26).

4. An air conditioning, electric heating, and warming appliance as claimed in claim 3, wherein: the evaporator (14) is fixedly connected with the outer frame (18), the evaporator (14) is connected with the first fixing gasket (19) through screws, the evaporator (14) is connected with the second fixing gasket (23) through screws, the temperature relay (20) is electrically connected with the thermal fuse (24), the temperature relay (20) is electrically connected with the lead (22), and the thermal fuse (24) is electrically connected with the lead (22).

5. an air conditioning, electric heating, and warming appliance as claimed in claim 1, wherein: fixed frame (27) are all installed to the both sides of first electric heater (15), the internally mounted of first electric heater (15) has electric heating pipe (28), one side of fixed frame (27) is provided with recess (29).

6. An air conditioning, electric heating, and warming appliance as claimed in claim 5, wherein: the first electric heater (15) is fixedly connected with the fixed frame (27), and the first electric heater (15) is electrically connected with the electric heating pipe (28).

7. An air conditioning, electric heating, and warming appliance as claimed in claim 1, wherein: the improved structure is characterized in that a convex block (30) is arranged inside the upper cavity (2), an elastic piece (32) is arranged outside the convex block (30), and fixing clamping beads (31) are arranged at the upper end and the lower end of the convex block (30).

8. An air conditioning, electric heating, and warming appliance as claimed in claim 7, wherein: upper chamber (2) and lug (30) set up to the integrated into one piece structure, upper chamber (2) and fixed card pearl (31) set up to the integrated into one piece structure, lug (30) and elastic component (32) are connected by gluing.