CN203052813U - Convection type electric heater - Google Patents
Convection type electric heater Download PDFInfo
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- CN203052813U CN203052813U CN 201220723732 CN201220723732U CN203052813U CN 203052813 U CN203052813 U CN 203052813U CN 201220723732 CN201220723732 CN 201220723732 CN 201220723732 U CN201220723732 U CN 201220723732U CN 203052813 U CN203052813 U CN 203052813U
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Abstract
The utility model relates to a convection type electric heater which comprises an outer shell, a heating element, a control device and a display device. An air inlet grid is arranged on the bottom of the outer shell, and an air outlet grid and a display window are arranged on the top of the outer shell. The heating element is fixedly arranged inside the outer shell. The control device is electrically connected with the heating element. The display device comprises a displaying control panel and a display panel, wherein the displaying control panel is provided with a liquid crystal display (LCD), the LCD faces towards the display window, the display panel is arranged at the position of the display window, the display panel is provided with a controlling button and a transparent area, the controlling button is electrically connected with the displaying control panel, and the transparent area corresponds to the LCD. The convection type electric heater is simple in structure and convenient to mount, can achieve rapid heating and meet the requirements of being low in cost, low in power consumption, small in noise, thin and fashionable, meanwhile, can carry out real-time monitoring and adjust the working state of the electric heater, and enables using of the electric heater to be convenient and safe and indoor temperature control to be accurate and reliable.
Description
Technical field
The utility model relates to electric heating equipment field, is a kind of convection type electric heater specifically.
Background technology
Along with the raising of people's living standard, electric heater more and more is subjected to liking of people as the auxiliary electric heating appliance of family in winter.At present common electric heater mainly is divided into light radiation formula and two kinds of convection types on the market, and advantage such as convection heater is good owing to security, and it is quiet to work, and indoor intensification is moist more is subjected to client's favor.
Existing convection type electric heater reasons such as unreasonable or inner space utilization rate is low owing to internal structure design, make that the thickness of electric heater is generally bigger, the assembling of each parts is also cumbersome, and because free convection is slow aspect circulation of air, very fast but the whole temperature rise of indoor local temperature rise phenomenon slowly appears easily, influenced the result of use of free convection formula electric heater, so convection type electric heater on the market, majority is provided with a plurality of fans and strengthens convection effects, as the patent No. be: CN201083440Y, patent name is the disclosed ultra-thin quiet humidification warm-air drier of Chinese utility model patent of " a kind of ultra-thin quiet humidification warm-air drier ", it adopts a plurality of dc fans vertically to arrange to strengthen cross-ventilation, this just causes following problem: 1, the scope of single fan outlet air-supply is little, need the quantity that increase blower fan for increasing blowing range more, cause noise to rise, power consumption increases; 2, blower fan quantity increases, and causes equipment mounting structure to complicate, and increases production cost; 3, appearance design is limited easily, and fuselage thickness and volume increase, and can not satisfy fashion demand.
In addition, the employed heater of existing convection type electric heater, mainly be based on the heating of oily spit of fland, mica heating frame and PTC ripple heater, all there is certain shortcoming in these heaters: it is that the interior oil of machine leaks easily that there is a unavoidable problem in oil electric heater, electrothermal tube to after the oil heating, is heated fin by oil earlier again, and fin is at last to air heat, so through heat exchange layer by layer, efficient is lower; The mica heater adopts exposed heating wire energising heating, has electric leakage, potential safety hazard such as on fire when breaking down easily; Though PTC ripple heater can automatic constant-temperature, shortcoming such as advantages such as flames of anger hidden danger also exist thermal conversion efficiency not high, and heat fade is bigger.
In addition, existing heater does not have the design and installation position, causes using having following problem: 1, the heater main body is aluminum material, and the high energy of surface temperature reaches 350 ℃, and general plastic mounting bracket can't be born so high temperature; 2, the metal material thermal conductivity is good, so the mounting bracket of metal material is easy to the heat of heater is transmitted to other place, produces unnecessary heat loss and potential safety hazard; 3, heater has the phenomenon of expanding with heat and contract with cold when work, the size of heater is changed, mainly be to elongate or shorten along its length, this phenomenon is referred to as " heat expansion extension ", length direction then is " extension direction ", traditional fixed erecting device can't satisfy the heat expansion extension requirement of this type of heater, makes heater easily limited and produce flexural deformation, influences the normal use of heater.
The utility model content
In order to overcome the defective of above-mentioned prior art, technical problem to be solved in the utility model provides a kind of convection type electric heater simple in structure, reasonable in design, easy for installation.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of convection type electric heater, comprise shell, heater, control device and display unit, described shell is made up of face shield and base plate, the bottom of described face shield offers the air inlet grid, the top of described face shield offers air outlet grille and display window, described base plate is provided with binding post and power switch, described binding post is electrically connected with extraneous power supply, described heater is fixed on the described base plate, described control device comprises power board, described power board be fixed on the described base plate and respectively with described heater, binding post and power switch are electrically connected, described display unit comprises display control board and display floater, described display control board is electrically connected with described power board, described display control board is fixed on the described base plate, be electrically connected with LCDs on the described display control board, described LCDs is over against described display window, described display floater is embedded in the described display window, described display floater is provided with control button and transparent region, described control button is corresponding to the control area of described display control board, and described transparent region is corresponding with described LCDs.
Convection type electric heater of the present utility model has the following advantages than prior art:
1, simple in structure, required parts are few, are easy to assembled formation between each parts, not only reduced installation difficulty, and are conducive to optimize internal structure, improve the inner space utilization rate, thereby make the thickness of electric heater thinner, volume is littler;
2, can monitor and adjust the duty of electric heater in real time, make electric heater use more convenient safety, indoor temperature control is more accurate reliable.
In order to strengthen the requirement of cross-ventilation effect and satisfied low cost, low-power consumption, low noise, frivolous fashion, also comprise the air channel assembly, described air channel assembly is fixed on the described base plate and is positioned at the below of described heater, and described air channel assembly has following two kinds of designs:
Scheme 1: described air channel assembly comprises miniature centrifugal dc fan and air channel, air inlet A place corresponding to described miniature centrifugal dc fan on the described base plate offers fresh air inlet, described air channel comprises housing, the wind chamber, air inlet and air outlet, described wind chamber is positioned at described housing, described air inlet is opened in respectively on the described housing and with described wind chamber with air outlet and is connected, described air inlet is connected with the air outlet A of described miniature centrifugal dc fan, described air outlet is towards described heater, described air outlet is greater than described air inlet, be provided with in the described wind chamber and a plurality ofly extend to the guiding fan blade of air outlet by air inlet, described guiding fan blade is divided into a plurality of air ducts independent of each other with described wind chamber.
Scheme 2: described air channel assembly comprises blower fan and air channel, described blower fan is the miniature centrifugal dc fan of no spiral case, described air channel comprises housing, the blower fan containing cavity, the wind chamber, air inlet A, air inlet B and air outlet, described blower fan containing cavity and wind chamber are arranged in the described housing, described air inlet A is opened on the described housing and with described blower fan containing cavity and is connected, offer fresh air inlet corresponding to described air inlet A on the described base plate, described blower fan is placed in the described blower fan containing cavity, the air intake surface of described blower fan is over against described air inlet A, the outlet air surface of described blower fan is right against the chamber wall of described blower fan containing cavity, described air inlet B is opened on the chamber wall of described blower fan containing cavity and with described wind chamber and is connected, described air outlet is opened on the described housing and with described wind chamber and is connected, described air outlet is over against the heater of described warm-air drier, be provided with in the described wind chamber and a plurality ofly extend to the guiding fan blade of air outlet by air inlet B, described guiding fan blade is divided into a plurality of air ducts independent of each other with described wind chamber.
For the ease of moulding and processing air channel, described air channel is that the plane of symmetry is divided into symmetrical upper cover plate and lower cover with the middle section of described guiding fan blade, the corresponding connector that is provided with mutual coupling respectively on described upper cover plate and the lower cover, described upper cover plate and lower cover are formed described air channel by the releasable connection of described connector.
For fear of heater because of the heat expansion flexural deformation of extending, also comprise the heater fixture that is installed in two ends, the described heater left and right sides, the two ends, the left and right sides of described heater are provided with draw-in groove, described heater fixture comprises support and base, described support is provided with first grab, chute and second grab, described base is provided with the slide rail that is complementary with described chute and the locating slot that is connected with the described second grab buckle, described support is connected with described heater with the buckle of draw-in groove by described first grab and is connected, described support is slidably disposed on the described slide rail by described chute and the buckle by described second grab and locating slot is fastened on the described base, described base is fixedlyed connected with described base plate, the glide direction of described support is consistent with the extension direction of described heater, and when second grab engages with locating slot, have at least in the two ends, the heater left and right sides between second grab of an end setting and the locating slot and leave the gap in described glide direction.
In order to reduce installation work-hour, reduce installation difficulty and labour intensity, described base is provided with button bit and screwed hole, described base plate is provided with the buckle that is interlocked with described button bit and the thread groove corresponding with described screwed hole, and described base is fixed on the described base plate by described button bit and screwed hole.
In order to guarantee that heater uses safety and possesses high thermal conversion efficiency, and satisfy the different heat requests that adds, described heater is made up of a plurality of flaky aluminum wing heaters that are arranged in parallel.
For the accurate duty of control heater, guarantee indoor temperature the arranging in the temperature range of needs, described power board is provided with a plurality of temperature sensors for detection of temperature in air inlet grid place and the shell.
For the electrical insulation capability of strengthening complete machine with play the thermal insulation protection effect, also comprise protective cover, described protective cover is located on described binding post, power switch, control device and the display unit.
In order to guarantee the stability of power board work, also comprise for the cooling fan of giving described power board heat radiation, described cooling fan is miniature centrifugal dc fan, described cooling fan is fixed on the described base plate and is positioned at the below of described power board, air inlet place corresponding to described cooling fan on the described base plate is provided with fresh air inlet, and the air outlet of described cooling fan is towards described power board.
In order further to strengthen the cross-ventilation effect, described base plate is provided with a plurality of steam vents.
Description of drawings
Figure 1 shows that the structure explosive view of the utility model embodiment that has design 1 described air channel assembly.
Figure 2 shows that the structure explosive view of the utility model embodiment that has design 2 described air channel assemblies.
Figure 3 shows that the explosive view of the air channel assembly among Fig. 1.
Figure 4 shows that the explosive view of the air channel assembly among Fig. 2.
Figure 5 shows that the heater fixture of the utility model embodiment and the assembling schematic diagram of heater.
Figure 6 shows that the partial enlarged drawing A of Fig. 5.
Figure 7 shows that the partial enlarged drawing B of Fig. 5.
Figure 8 shows that the structural representation of the support of heater fixture.
Figure 9 shows that the structural representation of the base of heater fixture.
Label declaration:
10, face shield; 100, air inlet grid; 101, air outlet grille; 11, base plate;
110, binding post; 111, power switch; 112, steam vent;
2, heater; 20, draw-in groove; 30, power board;
40, display control board; 400, LCDs; 41, display floater;
5, air channel assembly; 50, blower fan; 51, air channel;
500, air outlet A; 501, lug; 502, support;
510, housing; 511, wind chamber; 512, air inlet; 513, air outlet;
514, blower fan containing cavity; 515, air inlet A; 516, air inlet B;
517, installing port; 518, air-ducting ring; 519, first depressed part; 520, second depressed part;
5100, upper cover plate; 5101, lower cover; 5102, connector;
5103, reinforcement; 5110, guiding fan blade; 5180, outer shroud; 5181, interior ring;
6, heater fixture; 60, support; 61, base;
600, first grab; 601, chute; 602, second grab; 603, feet;
610, slide rail; 611, locating slot; 612, vacancy section; 613, slope;
614, button bit; 615, screwed hole; 6000, gap;
7, protective cover; 8, blower fan;
The specific embodiment
By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 1 or shown in Figure 2, the convection type electric heater of present embodiment, comprise shell, heater 2, control device and display unit, described shell is made up of face shield 10 and base plate 11, the bottom of described face shield 10 offers air inlet grid 100, the top of described face shield 10 offers air outlet grille 101 and display window (not shown on the figure), described base plate 11 is provided with binding post 110 and power switch 111, described binding post 110 is electrically connected with extraneous power supply, described heater 2 is fixed on the described base plate 11, described control device comprises power board 30, described power board 30 be fixed on the described base plate 11 and respectively with described heater 2, binding post 110 and power switch 111 are electrically connected, described display unit comprises display control board 40 and display floater 41, described display control board 40 is electrically connected with described power board 30, described display control board 40 is fixed on the described base plate 11, described display control board 40 is provided with LCDs 400, described LCDs 400 is over against described display window, described display floater 41 is fixed on the described display control board 40 and is embedded in the described display window, described display floater 41 is provided with control button and transparent region, described control button is corresponding to the control area of described display control board 40, and described transparent region is corresponding with described LCDs 400.
In the use, air enters internal body from the air inlet grid 100 of outer casing bottom, sends from the air outlet grille 101 at top by heater 2 heating backs, so convection circulation heating room air.Described power board 30 is used for the duty (comprising heater 2, display control board 40 and other and the device of power board 30 electric connections such as the duty of temperature sensor) of control electric heater, described display control board 40 is used for the duty of control LCDs 400 and will feeds back to power board 30 by the user instruction of sensing on the control button, can see displaying contents on the LCDs 400 by the transparent region on the display floater 41, thereby can monitor the duty of electric heater in real time, more intuitively electric heater be operated.
In the above-described embodiments, in order to strengthen the requirement of cross-ventilation effect and satisfied low cost, low-power consumption, low noise, frivolous fashion, also comprise air channel assembly 5, described air channel assembly 5 is fixed on the described base plate 11 and is positioned at the below of described heater 2, and described air channel assembly 5 has following two kinds of designs:
Design 1
Please refer to Fig. 1 and shown in Figure 3, described air channel assembly 5 comprises blower fan 50 and air channel 51, described blower fan 50 is miniature centrifugal dc fan, air inlet A place corresponding to described blower fan 50 on the described base plate 11 offers fresh air inlet, described air channel 51 comprises housing 510, wind chamber 511, air inlet 512 and air outlet 513, described wind chamber 511 is positioned at described housing 510, described air inlet 512 is opened in respectively on the described housing 510 and with described wind chamber 511 with air outlet 513 and is connected, described air inlet 512 is connected with the air outlet A500 of described blower fan 50, described air outlet 513 is over against described heater 2, described air outlet 513 is greater than described air inlet 512, be provided with in the described wind chamber 511 and a plurality ofly extend to the guiding fan blade 5110 of air outlet 513 by air inlet 512, described guiding fan blade 5110 is divided into a plurality of air ducts independent of each other with described wind chamber 511.
Further, in order to do air channel assembly 5 thinner, to better meet the frivolous requirement of electric heater, the profile in described air channel 51 is tabular, its thickness is equal to or less than the thickness of described blower fan 50, thereby the general thickness that makes air channel assembly 5 is no more than the thickness of blower fan 50, realizes ultra-thin purpose.Certainly, therefore this do not limit the shape in air channel 51, and under the situation that meets the utility model design spirit, the air channel 51 of Any shape all can be adopted.
Further, for the wind energy that blower fan 50 is sent imports in the wind chamber 511 fully, the shape of described air inlet 512 is identical with the shape of described air outlet A500, and closely cooperate between described air inlet 512 and the air outlet A500 and take certain seal approach, as applying fluid sealant or pasting sealing adhesive plaster etc.
Further, for the air quantity that makes air outlet 513 is evenly distributed, described guiding fan blade 5110 evenly distributes along the length direction of described air inlet 512 and the length direction of air outlet 513 respectively, thereby make the air quantity that enters each air duct all identical, and the air quantity of deriving from each air outlet 513 is also identical.
Further, for the ease of moulding and processing air channel 51, described air channel 51 is that the plane of symmetry is divided into symmetrical upper cover plate 5100 and lower cover 5101 with the middle section of described guiding fan blade 5110, and described upper cover plate 5100 and lower cover 5101 are respectively by the engineering plastics injection mo(u)lding.The corresponding connector 5102 that is provided with mutual coupling respectively on described upper cover plate 5100 and the lower cover 5101, described connector 5102 can adopt the cylinder that has clear opening, is threaded with self-tapping screw; Perhaps adopt the cylinder that is provided with tapped through hole, be threaded with long-pending tooth screw; Can also adopt the connector of other any known releasable connections.The connector 5102 preferred cylinders that are provided with clear opening that adopt of present embodiment, described cylinder correspondence is arranged on the periphery of described upper cover plate 5100 and lower cover 5101, and described upper cover plate 5100 and lower cover 5101 are threaded and form described air channel 51 by being arranged in fixed screw in the described cylinder.
Further, possess enough intensity and not fragile in order to make upper cover plate 5100 and lower cover 5101, the outer surface of described upper cover plate 5100 and lower cover 5101 is provided with reinforcement 5103.
Further, for the ease of dismounting and fixing air channel assembly 5, also be provided with the lug 501 of band through hole on the housing of described blower fan 50, by the relevant position at base plate 11 screwed hole is set, blower fan 50 can be threaded on the base plate 11, and air channel 51 also can be fixed on the base plate 11 by the fixed screw that is arranged in the described cylinder.
In order to adapt to the air-supply requirement of different heat body, air channel assembly 5 can also many group left-right symmetry be used in combination, as shown in Figure 1.
The air channel assembly 5 of this design has the following advantages:
1, use miniature centrifugal dc fan air-supply, so volume is little, noise is little, low in energy consumption;
2, with blower fan outlet ventilation state among a small circle, change in a big way air-supply into by the air channel, thereby reduced the use amount of blower fan, noise, power consumption and the production cost of electric heater have been reduced, simplified the internal structure of electric heater, reduced the volume and weight of electric heater, made the more frivolous fashion of electric heater;
3, can be by the relative position that adjusts air port and air inlet and the structure that leads fan blade, make the air-out direction of the wind guiding actual needs that blower fan sends, realized changing the purpose of air supply direction, the quantity, height of guiding fan blade and required air supply direction can follow factually the design requirement on border to adjust, thereby flexibility and the adaptability of electric heater internal structure have been improved, topology layout and the appearance design of optimizing electric heater have been reached, improve the purpose of electric heater inner space utilization rate, make the more frivolous fashion of electric heater of the present utility model.
See also Fig. 2 and shown in Figure 4, described air channel assembly 5 comprises blower fan 50 and air channel 51, described blower fan 50 is the miniature centrifugal dc fan of no spiral case, described air channel 51 comprises housing 510, blower fan containing cavity 514, wind chamber 511, air inlet A515, air inlet B516 and air outlet 513, described blower fan containing cavity 514 is arranged in the described housing 510 with wind chamber 511, described air inlet A515 is opened on the described housing 510 and with described blower fan containing cavity 514 and is connected, offer fresh air inlet corresponding to described air inlet A515 on the described base plate 11, described blower fan 50 is placed in the described blower fan containing cavity 514, the air intake surface of described blower fan 50 is over against described air inlet A515, the outlet air surface of described blower fan 50 is over against the chamber wall of described blower fan containing cavity 514, described air inlet B516 is opened on the chamber wall of described blower fan containing cavity 514 and with described wind chamber 511 and is connected, described air outlet 513 is opened on the described housing 510 and with described wind chamber 511 and is connected, described air outlet 513 is over against described heater 2, be provided with a plurality of guiding fan blades 5110 that extended to air outlet 513 by air inlet B516 in the described wind chamber 511, described guiding fan blade 5110 is divided into a plurality of air ducts independent of each other with described wind chamber 511.
Further, fix for convenience and dismounting blower fan 50, also be provided with an installing port 517 that is connected with blower fan containing cavity 514 on the described housing 510, as shown in Figure 3 and Figure 4, blower fan 50 can be inserted in the blower fan containing cavity 514 by described installing port 517, and by at the support 502 of blower fan 50 and the peripheral housing of installing port 517 corresponding through hole and screwed hole being set, blower fan 50 is fixed on the housing 510 with being threaded of housing 510 by support 502.
Further, in order to reduce windage, thereby increase the wind-force of air outlet 513, described guiding fan blade 5110 extends to described air outlet 513 along smoothed curve along described blower fan 50 by air inlet B516 again after the air supply direction straight line at these guiding fan blade 5110 places extends a segment distance, and this smoothed curve is positioned at the tangent line of end points at air outlet 53 places perpendicular to described air outlet 513.Because the bearing of trend of straightway of guiding fan blade 5110 is consistent with the air supply direction of blower fan 50, so wind stopping of fan blade 5110 that can not be subjected to when entering air duct from air inlet B516 leading, windage reduced; And after wind entered air duct, the smoothed curve section of guiding fan blade 5110 can change wind direction gradually with lead air outlet 513 and wind is blown out over against heater 2 of wind, thereby had reduced the resistance that runs in the wind shift process.Like this guiding fan blade 5110 of design has improved the wind-force of air outlet 513 greatly.
Further, for the air quantity that makes air outlet 513 is evenly distributed, described guiding fan blade 5110 evenly distributes along the length direction of described air inlet B516 and the length direction of air outlet 513 respectively, thereby make the air quantity that enters each air duct all identical, and the air quantity of deriving from each air outlet 513 is also identical.
Further, for the ease of moulding and processing, the mode of combination forming is adopted in described air channel 51, described air channel 51 is that the plane of symmetry is divided into symmetrical upper cover plate 5100 and lower cover 5101 with the middle section of described guiding fan blade 5110, and described upper cover plate 5100 and lower cover 5101 are respectively by the engineering plastics injection mo(u)lding.The corresponding connector 5102 that is provided with mutual coupling respectively on described upper cover plate 5100 and the lower cover 5101, described upper cover plate 5100 and lower cover 5101 are formed described air channel 51 by the releasable connection of described connector 5102.
Further, described connector 5102 is buckle, and described buckle correspondence is arranged on the periphery of described upper cover plate 5100 and lower cover 5101, and described upper cover plate 5100 and lower cover 5101 are formed described air channel 51 by being fastened and connected of described buckle.
Further, for the air intake that makes blower fan 50 more concentrated, described air channel 51 also comprises air-ducting ring 518, described air-ducting ring 518 comprises outer shroud 5180 and interior ring 5181, described outer shroud 5180 is fixed on the housing 510 at described air inlet A515 place, ring 5181 lugs are located at a side of described outer shroud 5180 and are embedded described air inlet A515 in described, and the external diameter of described interior ring 5181 and the bore of described air inlet A515 are complementary.
Further, in order to adapt to the air-supply requirement of different heat body, more the air channel assembly 5 of present embodiment can be organized and be used in combination, as shown in Figure 2, and the wind field dead angle in order to exist between the air channel assembly 5 after reducing to make up, described air channel 51 is provided with first depressed part 519 near an end of described blower fan 50, described air channel 51 is provided with second depressed part 520 away from the other end of described blower fan 50, when being used in combination, first depressed part 519 of an air channel assembly 5 is cooperated with second depressed part, 520 contrapositions of another air channel assembly 5, the air outlet 513 of two air channel assemblies 5 is arranged continuously, thereby reduced the wind field dead angle to greatest extent, strengthened the blowing range to heater 2.
The air channel assembly 5 of present design is compared with design 1 described air channel assembly, also possesses following advantage:
1, blower fan is incorporated in the air channel, makes the volume of air channel assembly littler;
2, the guiding fan blade cooperates the air supply direction design of blower fan, and windage is littler, and the wind-force of air outlet is bigger;
3, a plurality of air channel assembly is arranged side by side when using successively, and the wind field dead angle is little;
4, set up air-ducting ring at the air inlet (being air inlet A) of blower fan, make air intake more concentrated.
In the present embodiment, for fear of heater 2 because of the heat expansion flexural deformation of extending, please refer to Fig. 1, Fig. 2, Fig. 5 ~ shown in Figure 9, also comprise the heater fixture 6 that is installed in two ends, described heater 2 left and right sides, the two ends, the left and right sides of described heater 2 are provided with draw-in groove 20, described heater fixture 6 comprises support 60 and base 61, described support 60 is provided with first grab 600, chute 601 and second grab 602, described base 61 is provided with the slide rail 610 that is complementary with described chute 601 and the locating slot 611 that is connected with described second grab, 602 buckles, described support 60 is connected with described heater 2 buckles by described first grab 600, described support 60 is slidably disposed on the described slide rail 610 and by the buckle of described second grab 602 with locating slot 611 by described chute 601 and is fastened on the described base 61, described base 61 is fixedlyed connected with described base plate 11, the glide direction of described support 60 is consistent with the extension direction of described heater 2, and when second grab 602 engages with locating slot 611, have at least in the two ends, heater 2 left and right sides between second grab 602 of an end setting and the locating slot 611 and leave gap 6000 in described glide direction.
Described heater fixture 6 is because can be along relative slip of extension direction of heater 2 between base 61 and the support 60, and have at least between second grab 602 of an end and the locating slot 611 and leave gap 6000 in described glide direction, make and be heated and heat expansion can limited dieback when extending and the heat expansion extension requirement of heater 2 has been satisfied in flexural deformation in heater 2 work; Because for buckle is connected, contact-making surface has only partly a bit of snapping, and is more little according to contact area between support 60 and the heater 2, the principle that heat conduction is more slow can make the high temperature on the heater 2, and is as far as possible few and be transmitted on the support 60 slowly, thereby reduced heat loss, improved safety in utilization.
Further, heat expansion extension requirement during for the installation positioning requirements that satisfies heater 2 simultaneously and heater 2 work, when second grab 602 engages with locating slot 611, between second grab 602 of heater 2 one ends and locating slot 611, leave gap 6000 in described glide direction, between second grab 602 of heater 2 other ends and locating slot 611, then fit tightly.Extremely shown in Figure 5 as Fig. 3, leave gap 6000 in described glide direction between second grab 602 of heater 2 left ends and the locating slot 611, fit tightly between second grab 602 of heater 2 right-hand members and the locating slot 611, make heater 2 to horizontally slip and the holding position is constant, satisfied the installation positioning requirements of heater 2, and be heated when producing heat expansion and extending because of work when heater 2, because the support 60 of left end can slide left along slide rail 610 and be equivalent to the distance of gap 6000 width, therefore heater 2 can extend left and can not occur bending and deformation by limited dieback, thereby satisfied the heat expansion extension requirement of heater 2, the size in described gap 6000 is decided by the ductility of heater 2.
Further, in order to satisfy the installation requirement of heater 2 differing heights, described support 60 protrudes towards the one side of described heater 2 and is provided with a plurality of feets 603, is distributed with a plurality of described first grabs 600 by free end to stiff end is stepped on the described feet 603.As shown in Figure 6, described feet 603 is provided with two first grabs 600, then when heater 2 install from base 61 away from (be setting height(from bottom) comparatively big time), described heater 2 is connected with close free-ended first grab, 600 buckles, otherwise, install from base 61 nearer (be setting height(from bottom) hour) when heater 2, described heater 2 is connected with first grab, 600 buckles of close stiff end.
Further, as shown in Figure 6, described slide rail 610 is L-shaped, and an end of slide rail 610 vertically is arranged on the described base 61, the other end of slide rail 610 is parallel with the bottom surface of described base 61, and the zone corresponding to described slide rail 610 other ends on the described base 61 is vacancy section 612.When adopting mould molding, slide rail 610 can depanning smoothly on minute mould direction, avoids die side to loose core, thereby has simplified mould structure, has reduced moulding difficulty and die manufacturing cost.
Further, as shown in Figure 6, described locating slot 611 is positioned on the base 61 of the both sides on the described glide direction and is respectively equipped with the slope 613 of slipping into or skid off described locating slot 611 for described second grab 602.When support 60 will be fixed on the base 61, second grab 602 611 slides and strain takes place along described slope 613 to locating slot, when second grab 602 slipped into locating slot 611, second grab 602 restored to the original state and is fastened in the locating slot 611, thereby makes support 60 fixing with base 61; When support 60 separates with base 61, thereby second grab 602 is subjected to the extruding on slope 613 strain takes place and skid off in locating slot 611.Further, the lateral surface of second grab 602 is provided with the transition arc, the smoothness that skids off with raising.
Further, in order to reduce installation work-hour, reduce installation difficulty and labour intensity, as shown in Figure 6, described base 61 is provided with button bit 614 and screwed hole 615, described base plate 11 is provided with the buckle that is interlocked with described button bit 614 and the thread groove corresponding with described screwed hole 615, and described base 61 is fixed on the described base plate 11 by described button bit 614 and screwed hole 615.Utilize button bit 614 that base 61 is positioned on the base plate 11 during installation earlier, being screwed into screw in the screwed hole 615 again can be fastened on base 61 on the base plate 11, both can reduce installation work-hour, can reduce installation difficulty and labour intensity again.
Further, the material of described support 60 is that thermal conductivity factor is less than 30W/(mK) metal, be preferably stainless steel.So both can guarantee that support 60 possessed enough high-temperature capabilitys, can slow down the transmission of heat again, thereby reduce heat loss, improve safety in utilization.
Further, the material of described base 61 is that thermal conductivity factor is less than 2W/(mK) nonmetal, being preferably thermal conductivity factor is 0.5W/(mK) engineering plastics.Can either guarantee that like this base 61 possesses enough intensity and is convenient to moulding, the heat that can further reduce on the heater support 60 conducts to other parts again, thereby reduces heat loss, improves safety in utilization.
In the above-described embodiments, use safety and possess high thermal conversion efficiency in order to guarantee heater 2, and satisfy the different heat requests that adds, please refer to shown in Figure 2ly, described heater 2 is made up of a plurality of flaky aluminum wing heaters that are arranged in parallel from top to bottom.Described flaky aluminum wing heater refers to that on the heat sink of aluminium alloy heater both sides arranging to dash has the heater that becomes the little fin of an angle of 90 degrees with heat sink.Described aluminium alloy heater refers to that the middle part is provided with heat-generating pipe, and both sides are the heater of the heat sink of aluminum alloy material.Employing flaky aluminum wing heater can be directly to air heat, and potential safety hazards such as no leakage of oil, electric leakage are safe and reliable, and because the existence of fin, strengthened the contact area with air, increased air communication channel, air can be heated faster, so the thermal conversion efficiency height.And the concrete quantity of flaky aluminum wing heater can be carried out corresponding increase and decrease according to actual needs, also can make all or part of flaky aluminum wing heater work by the control button in the use, in order to satisfy the heat request that adds under different capacity and the varying environment, owing to arrange successively from top to bottom, therefore can be to the air heating that repeatedly heats up, the temperature rise of air is also faster, thereby realizes the purpose of Fast Heating.
In the above-described embodiments, for the accurate duty of control heater 2, guarantee indoor temperature the arranging in the temperature range of needs, described power board 30 is provided with a plurality of temperature sensors for detection of temperature in air inlet grid 100 places and the shell.Adopt traditional temperature controller to match with the micro computer plate, it is more accurate to adjust the temperature electronically, and the temperature control protection is safer.
In the above-described embodiments, for the electrical insulation capability of strengthening complete machine with play the thermal insulation protection effect, please refer to shown in Figure 1ly, also comprise protective cover 7, described protective cover 7 is located on described binding post 110, power switch 111, control device and the display unit.The material of described protective cover 7 is preferably engineering plastics.By protective cover 7 is set; electronic control part is all protected interior, thus the electrical insulation capability of reinforcement complete machine, and protective cover 7 also has the thermal insulation protection effect; can prevent effectively that the high temperature of heater 2 to the harmful effect that electronic component causes, making electric heater work more stable.
In the above-described embodiments, in order to guarantee the stability of power board 30 work, please refer to shown in Figure 1, also comprise for the blower fan 8 of giving described power board 30 heat radiations, described blower fan 8 is miniature centrifugal dc fan, described blower fan 8 is fixed on the described base plate 11 and is positioned at the below of described power board 30, and the air inlet place corresponding to described blower fan 8 on the described base plate 11 is provided with fresh air inlet, and the air outlet of described blower fan 8 is towards described power board 30.By a miniature centrifugal dc fan being set separately to power board 30 heat radiation of blowing, can effectively guarantee the stability of power board 30 work, thereby make electric heater work more stable.
In the above-described embodiments, in order further to strengthen the cross-ventilation effect, described base plate 11 is provided with a plurality of steam vents 112.
Adopt the convection type electric heater of said structure, its thickness can reach below the 50mm.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. convection type electric heater, it is characterized in that: comprise shell, heater, control device and display unit, described shell is made up of face shield and base plate, the bottom of described face shield offers the air inlet grid, the top of described face shield offers air outlet grille and display window, described base plate is provided with binding post and power switch, described binding post is electrically connected with extraneous power supply, described heater is fixed on the described base plate, described control device comprises power board, described power board be fixed on the described base plate and respectively with described heater, binding post and power switch are electrically connected, described display unit comprises display control board and display floater, described display control board is electrically connected with described power board, described display control board is fixed on the described base plate, be electrically connected with LCDs on the described display control board, described LCDs is over against described display window, described display floater is embedded in the described display window, described display floater is provided with control button and transparent region, described control button is corresponding to the control area of described display control board, and described transparent region is corresponding with described LCDs.
2. convection type electric heater according to claim 1, it is characterized in that: also comprise the air channel assembly, described air channel assembly is fixed on the described base plate and is positioned at the below of described heater, described air channel assembly comprises miniature centrifugal dc fan and air channel, air inlet A place corresponding to described miniature centrifugal dc fan on the described base plate offers fresh air inlet, described air channel comprises housing, the wind chamber, air inlet and air outlet, described wind chamber is positioned at described housing, described air inlet is opened in respectively on the described housing and with described wind chamber with air outlet and is connected, described air inlet is connected with the air outlet A of described miniature centrifugal dc fan, described air outlet is towards described heater, described air outlet is greater than described air inlet, be provided with in the described wind chamber and a plurality ofly extend to the guiding fan blade of air outlet by air inlet, described guiding fan blade is divided into a plurality of air ducts independent of each other with described wind chamber.
3. convection type electric heater according to claim 1, it is characterized in that: also comprise the air channel assembly, described air channel assembly is fixed on the described base plate and is positioned at the below of described heater, described air channel assembly comprises blower fan and air channel, described blower fan is the miniature centrifugal dc fan of no spiral case, described air channel comprises housing, the blower fan containing cavity, the wind chamber, air inlet A, air inlet B and air outlet, described blower fan containing cavity and wind chamber are arranged in the described housing, described air inlet A is opened on the described housing and with described blower fan containing cavity and is connected, offer fresh air inlet corresponding to described air inlet A on the described base plate, described blower fan is placed in the described blower fan containing cavity, the air intake surface of described blower fan is over against described air inlet A, the outlet air surface of described blower fan is right against the chamber wall of described blower fan containing cavity, described air inlet B is opened on the chamber wall of described blower fan containing cavity and with described wind chamber and is connected, described air outlet is opened on the described housing and with described wind chamber and is connected, described air outlet is over against the heater of described warm-air drier, be provided with in the described wind chamber and a plurality ofly extend to the guiding fan blade of air outlet by air inlet B, described guiding fan blade is divided into a plurality of air ducts independent of each other with described wind chamber.
4. according to claim 2 or 3 described convection type electric heaters, it is characterized in that: described air channel is that the plane of symmetry is divided into symmetrical upper cover plate and lower cover with the middle section of described guiding fan blade, the corresponding connector that is provided with mutual coupling respectively on described upper cover plate and the lower cover, described upper cover plate and lower cover are formed described air channel by the releasable connection of described connector.
5. convection type electric heater according to claim 1, it is characterized in that: also comprise the heater fixture that is installed in two ends, the described heater left and right sides, the two ends, the left and right sides of described heater are provided with draw-in groove, described heater fixture comprises support and base, described support is provided with first grab, chute and second grab, described base is provided with the slide rail that is complementary with described chute and the locating slot that is connected with the described second grab buckle, described support is connected with described heater with the buckle of draw-in groove by described first grab and is connected, described support is slidably disposed on the described slide rail by described chute and the buckle by described second grab and locating slot is fastened on the described base, described base is fixedlyed connected with described base plate, the glide direction of described support is consistent with the extension direction of described heater, and when second grab engages with locating slot, have at least in the two ends, the heater left and right sides between second grab of an end setting and the locating slot and leave the gap in described glide direction.
6. convection type electric heater according to claim 5, it is characterized in that: described base is provided with button bit and screwed hole, described base plate is provided with the buckle that is interlocked with described button bit and the thread groove corresponding with described screwed hole, and described base is fixed on the described base plate by described button bit and screwed hole.
7. convection type electric heater according to claim 1, it is characterized in that: described heater is made up of a plurality of flaky aluminum wing heaters that are arranged in parallel.
8. convection type electric heater according to claim 1, it is characterized in that: described power board is provided with a plurality of temperature sensors for detection of temperature in air inlet grid place and the shell.
9. convection type electric heater according to claim 1, it is characterized in that: also comprise protective cover, described protective cover is located on described binding post, power switch, control device and the display unit.
10. convection type electric heater according to claim 1, it is characterized in that: also comprise for the cooling fan of giving described power board heat radiation, described cooling fan is miniature centrifugal dc fan, described cooling fan is fixed on the described base plate and is positioned at the below of described power board, air inlet place corresponding to described cooling fan on the described base plate is provided with fresh air inlet, and the air outlet of described cooling fan is towards described power board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723732 CN203052813U (en) | 2012-12-25 | 2012-12-25 | Convection type electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723732 CN203052813U (en) | 2012-12-25 | 2012-12-25 | Convection type electric heater |
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| Publication Number | Publication Date |
|---|---|
| CN203052813U true CN203052813U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723732 Expired - Fee Related CN203052813U (en) | 2012-12-25 | 2012-12-25 | Convection type electric heater |
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| CN (1) | CN203052813U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279603A (en) * | 2014-09-24 | 2015-01-14 | 张翼鹏 | All-convection heater |
| CN104456691A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Convection type electric heater |
| CN105698255A (en) * | 2016-01-25 | 2016-06-22 | 中山昊天节能科技有限公司 | Air energy warmer with temperature monitoring function |
| CN106016425A (en) * | 2016-05-15 | 2016-10-12 | 夏维月 | Electric heater |
| CN107461792A (en) * | 2016-06-06 | 2017-12-12 | 广东绿岛风室内空气***科技有限公司 | A kind of super bath with double air outlet structures |
| CN107461791A (en) * | 2016-06-06 | 2017-12-12 | 广东绿岛风室内空气***科技有限公司 | A kind of super bath with blowing air-exchanging structure |
| CN110260397A (en) * | 2019-05-30 | 2019-09-20 | 佛山市中格威电子有限公司 | A kind of coal changes electricity warm-air blower control |
| CN112272500A (en) * | 2020-10-30 | 2021-01-26 | 厦门天马微电子有限公司 | Heat dissipation device and display device |
-
2012
- 2012-12-25 CN CN 201220723732 patent/CN203052813U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456691A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力电器股份有限公司 | Convection type electric heater |
| CN104279603A (en) * | 2014-09-24 | 2015-01-14 | 张翼鹏 | All-convection heater |
| CN105698255A (en) * | 2016-01-25 | 2016-06-22 | 中山昊天节能科技有限公司 | Air energy warmer with temperature monitoring function |
| CN106016425A (en) * | 2016-05-15 | 2016-10-12 | 夏维月 | Electric heater |
| CN106016425B (en) * | 2016-05-15 | 2021-06-25 | 夏维月 | Electric heater |
| CN107461792A (en) * | 2016-06-06 | 2017-12-12 | 广东绿岛风室内空气***科技有限公司 | A kind of super bath with double air outlet structures |
| CN107461791A (en) * | 2016-06-06 | 2017-12-12 | 广东绿岛风室内空气***科技有限公司 | A kind of super bath with blowing air-exchanging structure |
| CN110260397A (en) * | 2019-05-30 | 2019-09-20 | 佛山市中格威电子有限公司 | A kind of coal changes electricity warm-air blower control |
| CN112272500A (en) * | 2020-10-30 | 2021-01-26 | 厦门天马微电子有限公司 | Heat dissipation device and display device |
| CN112272500B (en) * | 2020-10-30 | 2022-08-12 | 厦门天马微电子有限公司 | Heat dissipation device and display device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20191225 |