CN212785894U - Electric heating module, electric heater heating device and temperature adjusting equipment - Google Patents

Abstract

The utility model provides an electricity module, electric heater generate heat device and temperature regulation equipment, it includes conductive band, back shaft and a plurality of backup pad, a plurality of backup pad cross connection and be the star, and the back shaft is equipped with a plurality of slots along circumference, and in the slot was inserted to the backup pad, the backup pad was equipped with a plurality of cross-over grooves along radial range, and conductive band passes the cross-over groove on the adjacent backup pad in succession and is the helical shape, and conductive band's both ends are used for being connected with the power electricity. Compared with a resistance wire, the conductive belt has the advantages of large heating area, high heat dissipation efficiency, low surface temperature under the same power, difficulty in being burnt out and low failure rate; the conductive band is the spiral winding on a plurality of backup pads, and the backup pad produces the support effort to the conductive band for the support span of conductive band is less, natural frequency is high, is favorable to reducing the vibration and the noise that the conductive band produced at the in-process that blows.

Description

Electric heating module, electric heater heating device and temperature adjusting equipment

Technical Field

The utility model belongs to the technical field of the temperature regulation technique and specifically relates to an electricity module, electric heater generate heat device and temperature regulation equipment that generate heat that relate to.

Background

A fan heater is a common device for emitting hot air. The fan heater usually includes an electric heating device and a fan, and the fan is used for blowing heat generated by the electric heating device out of an air outlet of the fan heater.

The existing electric heating device usually comprises a resistance wire, and the resistance wire can generate heat after being electrified. The heating area of the resistance wire is small, the surface heat load is large, the resistance wire is prone to burning out in a reddish mode, and the failure rate is high; and the natural frequency of the resistance wire is lower, and when the resistance wire is in forced convection with the fan, the resistance wire is easy to vibrate to generate noise.

Therefore, there is also a need to provide a new electric heating module to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect of prior art, the utility model provides an electricity module, the electric heater device and the temperature regulation equipment that generate heat that the fault rate is lower, the noise is lower.

The utility model provides a technical scheme that technical problem adopted as follows:

the utility model provides an electricity module that generates heat, its includes conductive band, back shaft and a plurality of backup pad, and is a plurality of backup pad cross connection and be the star, the back shaft is equipped with a plurality of slots along circumference, the backup pad inserts in the slot, the backup pad is equipped with a plurality of crossing the trough of belt along radial arrangement, conductive band passes in succession adjacently in the backup pad cross the trough of belt and be the helical shape, the both ends of conductive band are used for being connected with the power electricity.

Preferably, the support shaft is provided with a shaft cavity extending along the axial direction, one end of the shaft cavity is provided with an opening, the other end of the shaft cavity is provided with a via hole, and one end, close to the support shaft, of the conductive belt is located in the shaft cavity.

Preferably, the electric heating module further includes an end cap connected to an end of the support shaft and covering the opening.

Preferably, the end cover is provided with a plurality of latch teeth along the circumferential direction, and the latch teeth are inserted into the insertion grooves.

Preferably, the electric heating module comprises two conductive strips, a plurality of parallel through-slot grooves are formed in two sides of the supporting plate, and the two conductive strips are electrically connected with each other and wound on the supporting plate in parallel.

Preferably, the groove wall of the belt passing groove close to the support shaft is provided with a protrusion at the notch.

The utility model provides an electric heater generate heat device, it includes a plurality of the electricity generates heat the module, and is a plurality of the electricity generates heat the module along the axial end to end of back shaft, adjacent the electricity generates heat the module the conduction band electricity each other connects.

Preferably, a rib is formed between adjacent slots, two opposite ribs protrude from an end face of the supporting shaft to form a connector, two grooves are formed in an end portion of the supporting shaft far away from the connector, and the connector of one of the electric heating modules is inserted into the groove of the other adjacent electric heating module.

Preferably, the electric warm-air heating device further comprises a fuse and a temperature control switch, and the fuse and the temperature control switch are electrically connected with the conductive band.

The utility model provides a temperature regulation equipment, its includes frame, fan and the electric heater device that generates heat, the electric heater device that generates heat with the fan all install in the frame, the fan is used for right the electric heater device that generates heat bloies.

Compared with the prior art, the utility model discloses mainly there is following beneficial effect:

compared with a resistance wire, the conductive belt has the advantages of large heating area, high heat dissipation efficiency, low surface temperature under the same power, difficulty in being burnt out and low failure rate; the conductive band is spirally wound on the plurality of support plates, and the support plates generate support acting force on the conductive band, so that the support span of the conductive band is small, the natural frequency is high, and the vibration and noise generated in the blowing process of the conductive band are reduced.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic structural view of an electric heater heating device according to the present invention;

fig. 2 is an assembly schematic view of the electric heater heating device according to the present invention;

fig. 3 is an exploded view of an electrical heating module according to the present invention;

fig. 4 is a schematic structural view of four support plates according to the present invention.

Reference numerals:

200-electric heater heating device, 91-fuse, 92-temperature control switch, 100-electric heating module, 10-support shaft, 101-shaft cavity, 102-slot, 103-via hole, 11-dowel bar, 111-connector, 12-groove, 20-conductive band, 30-support plate, 301-through groove, 302-protrusion, 31-first support plate, 311-first clamping groove, 32-second support plate, 321-second upper clamping groove, 322-second lower clamping groove, 33-third support plate, 331-third upper clamping groove, 332-third lower clamping groove, 34-fourth support plate, 341-fourth clamping groove, 40-end cover, 41-latch and 50-connecting terminal.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Fig. 1 is a schematic structural view of an electric heater heating device 200 according to the present invention; fig. 2 is an assembly schematic view of the electric heater heating device 200 according to the present invention.

As shown in fig. 1 to fig. 2, an electric heater heating device 200 according to a preferred embodiment of the present invention includes a fuse 91, a temperature control switch 92, and a plurality of electric heating modules 100. A plurality of electric heating modules 100 are longitudinally connected end to end.

Fig. 3 is an exploded view of an electric heating module 100 according to the present invention.

As shown in fig. 3, the electric heating module 100 includes a conductive band 20, a support shaft 10, a support plate 30, an end cap 40, and a connection terminal 50. The plurality of support plates 30 are connected in a star shape in a cross manner, the support shaft 10 is provided with a plurality of insertion grooves 102 along the circumferential direction, the support plates 30 are inserted into the insertion grooves 102, the support plates 30 are provided with a plurality of strip passing grooves 301 arranged in the radial direction, the conductive strip 20 continuously passes through the strip passing grooves 301 on the adjacent support plates 30 to be in a spiral shape, and both ends of the conductive strip 20 are used for being electrically connected with a power supply.

Compared with a resistance wire, the heating area of the conductive belt 20 is large, the heat dissipation efficiency is high, the surface temperature is low under the same power, the conductive belt is not easily blown, and the failure rate is low; the conductive band 20 is spirally wound on the plurality of support plates 30, and the support plates 30 generate support acting force on the conductive band 20, so that the support span of the conductive band 20 is small, the natural frequency is high, and the vibration and noise generated in the blowing process of the conductive band 20 are reduced.

The conductive ribbon 20 may be made of an iron-based amorphous alloy or a nickel, chromium, aluminum, iron crystalline alloy. The conductive ribbon 20 may be an ultra-thin flat ribbon. The conductive tape 20 may have a width of 2.5mm to 20mm and a thickness of 0.01mm to 0.07 mm. The surface area of the conductive belt 20 is large, so that after being electrified, the conductive belt can efficiently transfer heat to the surrounding environment under the condition of low temperature, and has no open fire, danger caused by oxygen or dust combustion, peculiar smell, suffocation and other discomfort. Meanwhile, the ultrathin flat belt has light weight and small heating inertia, cannot store heat energy, can convert most of electric energy into heat energy, has high energy conversion efficiency, can emit most of heat to surrounding areas, and has performance far exceeding that of a conventional heating element. Compared with the resistance wire, the heating area of the conductive belt 20 is large, the heat dissipation efficiency is high, the strength of the conductive belt 20 is high, the conductive belt is not easy to be blown, and the failure rate is low.

The conductive strip 20 is electrically connected at both ends to a power source, which may be direct current or alternating current. The conductive tape 20 sequentially passes through the over-tape grooves 301 of the plurality of support plates 30 and the over-tape grooves 301 of the adjacent support plates 30 which pass in series, and is spiral from the inside to the outside. Because the passing groove 301 of the adjacent support plate 30 continuously penetrated by the conductive band 20 is in a shape of multiple turns, the support plate 30 generates a supporting acting force on the conductive band 20, so that the support span of the conductive band 20 is small, the natural frequency is high, and the vibration and the noise generated in the blowing process of the conductive band 20 are favorably reduced. The strip passing grooves 301 of the adjacent support plates 30 are distributed in a staggered manner in the height direction, so that the conductive strip 20 is in a spiral shape, and the overall rigidity of the conductive strip 20 can be enhanced.

The support shaft 10 may have a sleeve shape with one end opened. The supporting shaft 10 is provided with a shaft cavity 101 extending along the axial direction, one end of the shaft cavity 101 is provided with an opening, the other end of the shaft cavity is provided with a via hole 103, and one end of the conductive belt 20 close to the supporting shaft 10 is positioned in the shaft cavity 101. The conductive strip 20 is wound in a spiral shape and may have an inner end and an outer end. The inner ends of the conductive strips 20 are located in the shaft cavity 101, and the inner ends of adjacent conductive strips 20 may be connected by a cable, which is disposed in the shaft cavity 101. This can protect the cable and make the electric heating module 100 neat and beautiful. The connection terminal 50 is mounted on the support plate 30, and the outer end of the conductive tape 20 is connected to the connection terminal 50. The terminal 50 may be made of steel, aluminum, copper, or an alloy thereof. In addition, the terminal 50 may also enhance the heat dissipation performance of the conductive tape 20. The terminal of the conductive band 20 is easily overheated due to low wind speed, and the terminal is connected by the terminal 50, so that the heat dissipation performance can be enhanced.

The supporting plates 30 are connected in a ring shape through clamping grooves, a plurality of belt passing grooves 301 are formed in the supporting plates 30 along the length direction, and protrusions 302 are arranged on the edges of the belt passing grooves 301. The support plates 30 are made of mica material to improve insulation and heat-insulating properties. The support plate 30 is provided with a plurality of strap passing grooves 301 along the length direction. The support plate 30 is provided with at least two groups of passing-through grooves 301 along the width direction of the conductive strips 20, each group of passing-through grooves 301 comprises a plurality of passing-through grooves 301, and each group of passing-through grooves 301 is used for allowing one conductive strip 20 to pass through. The groove wall of the through-groove 301 close to the support shaft 10 is provided with a projection 302 at the notch. The conductive band 20 passes through the strap passing groove 301 and can be tightened on the groove wall near the supporting shaft 10. The protrusion 302 may prevent the conductive strip 20 from sliding out of the slot.

The electric heating module 100 may include four support plates 30, a first support plate 31, a second support plate 32, a third support plate 33, and a fourth support plate 34, respectively. The four supporting plates can be connected in a cross mode at equal included angles.

Fig. 4 is a schematic structural view of four support plates according to the present invention.

As shown in fig. 4, four support plates are each provided with a strap slot 301 and a projection 302. The first support plate 31 is provided with a first engaging groove 311, the second support plate 32 is provided with a second upper engaging groove 321 and a second lower engaging groove 322, the third support plate 33 is provided with a third upper engaging groove 331 and a third lower engaging groove 332, and the fourth support plate 34 is provided with a fourth engaging groove 341. During installation, the second upper engaging groove 321 of the second support plate 32 is engaged with the first engaging groove 311 of the first support plate 31, the third upper engaging groove 331 of the third support plate 33 is engaged with the second lower engaging groove 322 of the second support plate 32, and the fourth engaging groove 341 of the fourth support plate 34 is engaged with the third lower engaging groove 332 of the third support plate 33. The first engaging groove 311 of the first support plate 31 and the fourth engaging groove 341 of the fourth support plate 34 are engaged with each other in an inverted manner, and the second support plate 32 and the third support plate 33 are constrained between the groove bottom of the first engaging groove 311 and the groove bottom of the fourth engaging groove 341. This can improve the connection strength of the four support plates.

The end cap 40 is connected with the end of the support shaft 10 and covers the opening of the shaft cavity 101. The end cap 40 can protect the cable in the shaft cavity 101 and can also prevent the support plate 30 from falling off. The end cap 40 is provided with a plurality of latch teeth 41 along the circumferential direction, and the latch teeth 41 are inserted into the insertion grooves 102. The latch 41 can restrain all the support plates 30 in the slot 102, which can improve the stability of the support plates 30.

The electric heating module 100 includes two conductive tapes 20, a plurality of parallel through-slot slots 301 are disposed on two sides of the support plate 30, and the two conductive tapes 20 are electrically connected to each other and wound around the support plate 30 in parallel. This can increase the heat generation power of the electric heat generation module 100. The two conductive strips 20 may be connected in series or in parallel. The outer ends of the two conductive strips 20 are respectively connected with the connection terminals 50, and the two connection terminals 50 are connected through cables.

The electric heating module 100 can be used as a heating unit and can be spliced in various ways. For example, a plurality of electric heating modules 100 can transversely splice, can increase the area that generates heat, are applicable to the great electric heater unit of air outlet. The plurality of electric heating modules 100 can also be longitudinally spliced, and the heating power of the unit air outlet area can be improved.

In this embodiment, the electric heater 200 includes a plurality of electric heating modules 100, the plurality of electric heating modules 100 are connected end to end along the axial direction of the supporting shaft 10, and the conductive bands 20 of the adjacent electric heating modules 100 are electrically connected to each other. This can improve the heating power of the electric heater heating device 200. The conductive strips 20 of adjacent electric heating modules 100 may be connected in series or in parallel. When all of the conductive strips 20 are connected in parallel, the inner ends of the conductive strips 20 may be connected by a cable, which is disposed within the shaft cavity 101 and may pass through the vias 103. The adjacent conductive strips 20 are electrically connected in parallel or in series, and different combinations of heating powers can be realized by different connection modes.

The adjacent slots 102 of the supporting shaft 10 form a rib 11, wherein two opposite ribs 11 protrude from the end face of the supporting shaft 10 to form a connector 111, the end of the supporting shaft 10 far away from the connector 111 is provided with two grooves 12, and the connector 111 of one electric heating module 100 is inserted into the groove 12 of the adjacent other electric heating module 100. Therefore, the adjacent electric heating modules 100 can be connected end to end, and the structure is simple, the installation is simple and easy, and the product cost is favorably reduced.

The fuse 91 and the temperature controlled switch 92 are electrically connected to the conductive tape 20. The fuse 91, the temperature controlled switch 92 and the conductive band 20 are connected in series, the temperature controlled switch 92 is configured to be automatically opened when a certain temperature is exceeded, and the temperature controlled switch 92 and the fuse 91 play a role in double protection to prevent the current of the circuit from being too large to damage the device or cause danger. The fuse 91 and the temperature control switch 92 may be provided at both ends of the electric heater heating apparatus 200.

The utility model also provides a temperature regulation equipment, it includes frame, fan and electric heater device 200 that generates heat, and the electric heater device 200 that generates heat and fan are all installed in the frame, and the fan is used for generating heat device 200 to the electric heater and bloies. The direction of the wind may be along the width direction of the conductive band 20, that is, the axial direction of the support shaft 10. The temperature adjustment device may be provided with an air outlet from which hot air is blown out. Preferably, the temperature adjusting apparatus may include a plurality of electric heater heating devices 200, and the plurality of electric heater heating devices 200 may be arranged in various ways. For example, a plurality of electric heater heating devices 200 can transversely be arranged, can increase the area of generating heat, are applicable to the great electric heater equipment of air outlet. The temperature adjusting device may include, but is not limited to, a blower, a fan heater, an air conditioner, a dryer, or a baking oven.

In the embodiment, compared with the resistance wire, the heating area of the conductive belt 20 is large, the heat dissipation efficiency is high, the surface temperature is low under the same power, the surface is not easy to be blown, and the failure rate is low; the conductive band 20 is spirally wound on the plurality of support plates 30, and the support plates 30 generate support acting force on the conductive band 20, so that the support span of the conductive band 20 is small, the natural frequency is high, and the vibration and noise generated in the blowing process of the conductive band 20 are reduced. The spiral winding of the conductive tape 20 can be realized with good structural stability and low noise. The protrusion 302 of the supporting plate 30 can fix the ultra-thin flat belt to prevent the falling off during the winding process or the working process. Different combinations of heating powers can be realized by different combinations of the electric heating modules 100. Better thermal conductivity can be achieved by using copper termination connections at the ends of the conductive strips 20. Because the ultra-thin flat belt has a large width-thickness ratio, large-span wiring easily causes poor rigidity and low natural frequency, and wind blowing easily causes resonance of a heating belt to generate air noise. The electric heating module 100 provided by the embodiment adopts a spiral winding mode, so that the electric heating module has better rigidity, and can generate smaller vibration and lower noise at high wind speed. Meanwhile, the electric heating module 100 has an assembling function, and can realize quick combination of different powers.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. An electric heating module is characterized in that,

the electric heating module comprises a conductive band, a supporting shaft and a plurality of supporting plates, the supporting plates are in cross connection and are in a star shape, the supporting shaft is provided with a plurality of slots along the circumferential direction, the supporting plates are inserted into the slots, the supporting plates are provided with a plurality of band passing slots which are arranged along the radial direction, the conductive band continuously penetrates through the adjacent band passing slots in the supporting plates and is in a spiral shape, and two ends of the conductive band are used for being electrically connected with a power supply.

2. An electric heating module according to claim 1,

the supporting shaft is provided with a shaft cavity extending along the axial direction, one end of the shaft cavity is provided with an opening, the other end of the shaft cavity is provided with a via hole, and one end, close to the supporting shaft, of the conductive belt is located in the shaft cavity.

3. An electric heating module according to claim 2,

the electric heating module further comprises an end cover, and the end cover is connected with the end part of the supporting shaft and covers the opening.

4. An electric heating module according to claim 3,

the end cover is provided with a plurality of latch teeth along the circumferential direction, and the latch teeth are inserted into the slots.

5. An electric heating module according to claim 1,

the electric heating module comprises two conductive bands, a plurality of parallel through-groove grooves are formed in the two sides of the supporting plate, and the two conductive bands are electrically connected with each other and wound on the supporting plate in parallel.

6. An electric heating module according to claim 1,

the groove wall of the through-groove close to the supporting shaft is provided with a bulge at the notch.

7. An electric warm-air heating device is characterized in that,

the electric heater heating device comprises a plurality of electric heating modules according to any one of claims 1 to 6, wherein the electric heating modules are connected end to end along the axial direction of the supporting shaft, and the conductive bands of the adjacent electric heating modules are electrically connected with each other.

8. The electric warm-air heating device of claim 7,

and a joint bar is formed between the adjacent slots, wherein two opposite joint bars protrude from the end surface of the supporting shaft to form a connector, two grooves are formed at the end part of the supporting shaft far away from the connector, and the connector of one electric heating module is inserted into the groove of the other adjacent electric heating module.

9. The electric warm-air heating device of claim 7,

the electric heater heating device further comprises a fuse and a temperature control switch, and the fuse and the temperature control switch are electrically connected with the conductive band.

10. A temperature regulation device, characterized in that,

the temperature adjustment device comprises a machine frame, a fan and the electric heater heating device according to claim 7, wherein the electric heater heating device and the fan are both installed on the machine frame, and the fan is used for blowing air to the electric heater heating device.

Images