Improved fin and the filling type electric heater of this fin is installed
Technical field:
The utility model relates to a kind of fin, the oil-filled electric heater that relates in particular to a kind of fin of electric heater and this backing is installed.
Background technology:
The filling type electric heater is because environmental protection, health, advantage such as pollution-free more and more are subjected to consumer's favor.And in the prior art, the fin of all filling type electric heaters all is the linear pattern plates, although also there are following many shortcomings in linear pattern fin processing, easy to assembly:
1, is unfavorable for the heat diffusion of air towards periphery.Because the hot gas that fin sends can directly rise in the air along fin, heating effect is bad.
2, adopt the filling type electric heater of this fin, be difficult to that reasonable disposition is installed as the space of other annexes such as blower fan, humidifier, these annexes are installed after, can make that the product overall volume is huge on the one hand, make troubles for transportation, use; Can cause the waste in space on the other hand again.
3, radiating effect is poor, and therefore under the certain situation of fin quantity, the peak power of the heating wire that can be equipped with is restricted, and correspondingly use occasion also is restricted.
China national Department of Intellectual Property February in 2003 Granted publication on the 19th CN2536943 number Chinese utility model patent, a kind of novel filling type electric heater is disclosed, comprise heat-generating pipe, adapter sleeve, multi-disc fin and control cabinet, adapter sleeve is connected in the multi-disc fin on the control cabinet, heat-generating pipe immerses the conduction oil in the oil-filled fin, and wherein the fin that is connected with control cabinet is not oil-filled fin.Therefore this sheet fin can play certain heat-blocking action, reduces the operating temperature in the control cabinet, prolongs the service life of electric heater.Although this filling type electric heater prior art relatively has certain progress,, therefore still there are aforesaid many deficiencies because fin also is the plates of vertical bar shaped.
The utility model content:
One of the technical problems to be solved in the utility model is the deficiency that overcomes above-mentioned prior art, a kind of improved fin is provided, the easier diffusion towards periphery of its heat, radiating effect is better, under the certain situation of sheet number, can select for use more powerful heating wire, expand the purposes and the use occasion of product as its thermal source.
Another technical problem to be solved in the utility model provides a kind of filling type electric heater, its not only heat distribute towards periphery easily, heating effect is good, and has improved the space availability ratio of product integral body, annexes such as humidifier, blower fan can additionally be installed and can not increase the volume of product too much.
The improved fin that provides according to the utility model, its integral body is the plates of a hollow, the inside of described plates is formed with at least two oil guide groove, the upper/lower terminal of described plates is shaped or the adapter sleeve of the hollow that along continuous straight runs extends is installed, and the inside of described adapter sleeve forms oil through; The upper/lower terminal of described plates is positioned at different vertical planes; Or the upper/lower terminal of described plates is positioned at same vertical plane, and at least a portion is a bending in the middle of it, forms the structure to lateral projections.
According to the filling type electric heater that the utility model provides, comprise successively the multi-disc fin that connects, be installed on the electric cabinet on the described fin and be positioned at the heater of described fin, be provided with switch, temperature controller, thermal protector and electric wire in the described electric cabinet; Described fin is the plates of hollow, and its inside is formed with at least two oil guide groove; The upper/lower terminal of described fin is shaped or the adapter sleeve of the hollow that along continuous straight runs extends is installed, and the inside of described adapter sleeve forms oil through, and the oil through of each described fin is connected, and is filled with oil in the described fin; The upper/lower terminal of each described fin is positioned at different vertical planes; Or the upper/lower terminal of each described fin is positioned at same vertical plane, and at least a portion is a bending in the middle of it, forms the structure to lateral projections; Each described fin is of similar shape and size.Described electric cabinet is installed on the described fin of the leftmost side, and the described fin of the rightmost side is equipped with bonnet, all is formed with louvre on described electric cabinet and the described bonnet.The bottom of described fin is equipped with roller.
The utility model also has following attached technical characterictic:
In a kind of preferred embodiment that the utility model provides, the upper/lower terminal of described plates (being fin) is positioned at different vertical planes, and the two is connected by a bending part, and described bending part comprises two foldings that direction is opposite.Described two foldings all are circular-arc, and the radius of the two equates, arc length is identical, and its radius is not less than 15 millimeters, and central angle is 30 to 60 degree.The equal in length of described top and bottom, its ratio with the height of described bending part is 1 to 5: 1.
In the another kind of preferred embodiment that the utility model provides, the upper/lower terminal of each described fin is positioned at same vertical plane, the two is connected by a bending part, described bending part comprises the end folding of rolling over and be positioned at described middle folding two ends in the middle of one, two described end folding directions are identical, and its direction with described middle folding is opposite.Folding and end folding all are circular-arc in the middle of described, and the radius of described middle folding is 80 to 100 millimeters, and central angle is 40 to 70 degree; The radius of described end folding is 15 to 30 millimeters, and central angle is 30 to 50 degree.The equal in length of described top and bottom, its ratio with the height of described bending part is 1 to 0.2: 1.
The improved fin that provides according to the utility model, prior art has as advantage relatively: because it has crooked structure in the longitudinal section direction, therefore hot gas can outwards be dispersed along crooked part, good with the convection effects of surrounding air, so good heat dissipation effect, compare with the fin of prior art vertical bar formula, can select for use more powerful heating wire under the same conditions, therefore expanded the purposes and the use occasion of product as its thermal source.
Filling type electric heater according to the utility model provides owing to adopted the fin of above-mentioned good heat dissipation effect, therefore can make the temperature of surrounding environment raise as early as possible, and heating effect is good; On the other hand, also can select more powerful heating wire for use, expand the purposes and the use occasion of product; Secondly, the formed sunk part of warp architecture forms the space that holds other annex, as long as reasonable disposition, a plurality of annexes such as humidifier, fan, timer can be installed on fin and can not increase the volume of product integral body too much, save the space, make transportation and use convenient.
Description of drawings:
The preferred embodiment that provides below in conjunction with accompanying drawing is elaborated to the utility model:
The overall structure schematic diagram of the filling type electric heater that provides according to the utility model is provided Fig. 1, adopts broken section to show structures such as heater, oil groove among the figure;
Fig. 2 is the perspective exploded view of filling type electric heater shown in Figure 1, there is shown each part of electric heater and each control assembly in the electric cabinet;
The front view of a kind of preferred embodiment of the fin that provides according to the utility model is provided Fig. 3, and every is similar S type, is the usefulness of explanation, there is shown the multi-disc groups of fins and lump together the state that forms heat sink assembly, down with;
Fig. 4 is the left view of Fig. 3, and the planar structure and the oil groove that there is shown fin distribute;
Fig. 5 is the another kind of implementation of fin shown in Figure 3, and the overbending direction of each fin is with embodiment illustrated in fig. 3 opposite, and every is similar anti-S type;
The front view of the another kind of preferred embodiment of the fin that provides according to the utility model is provided Fig. 6, and each sheet is similar C type;
Fig. 7 is the another kind of implementation of fin shown in Figure 6, and the overbending direction of each fin is with embodiment illustrated in fig. 6 opposite, and each sheet is similar anti-C type.
The specific embodiment:
Referring to Fig. 1, the filling type electric heater that provides according to the utility model, comprise successively the multi-disc fin 1 that connects, be installed on the electric cabinet 2 on the described fin 1 and be positioned at the heater 3 of described fin 1, as shown in FIG., described heater 3 is an electrothermal tube, described electric cabinet 2 is installed on the left side of described fin 1, and the right side of described fin 1 is equipped with bonnet 4, all is formed with louvre 100 on described electric cabinet 2 and the bonnet 4.The hot gas that described fin 1 produces can outwards distribute by described louvre 100 at two ends.As shown in FIG., the bottom of described fin 1 is equipped with roller 5, and roller 5 can be various versions, the existence of roller make electric heater carrying, use all convenient.
As shown in Figure 2, be provided with switch 21, temperature controller 22, thermal protector 23 and electric wire 24 in the described electric cabinet 2; Electric wire 24 is used to connect power supply, and described switch 21 comprises power switch and temperature control rotation, and the temperature control knob is used to regulate the operating temperature of electric heater; Described temperature controller 22 is used to keep the temperature constant of fin 1; Described thermal protector 23 can carry out overtemperature protection, and when entering abnormal operating state when temperature surpasses setting value, thermal protector 23 can be cut off the electricity supply automatically.These structures are all known technology, repeat no more herein.Described fin 1 is the plates of hollow, and its inside is formed with at least two oil guide groove 10; The upper/lower terminal of described fin 1 is shaped or the adapter sleeve 11 of the hollow that along continuous straight runs extends is installed, and the inside of described adapter sleeve 11 forms oil through 12, and the oil through 12 of each described fin 1 is connected, and is filled with oil in the described fin 1.In the following preferred embodiment that the utility model provides, described fin 1 and adapter sleeve 11 are integrally formed, and each described fin 11 is welded by two halves, and the adapter sleeve 11 of each fin 1 welds together, thereby forms whole heat sink assembly.
The utility model mainly improves the geometry of described fin 1, and according to the filling type electric heater that the utility model provides, the upper/ lower terminal 13,14 of each described fin 1 is positioned at different vertical planes; Or the upper/ lower terminal 13,14 of each described fin 1 is positioned at same vertical plane, and at least a portion is a bending in the middle of it, forms the structure to lateral projections; Be that each fin 1 has crooked structure in the longitudinal section direction.Each described fin 1 is of similar shape and size, and identical shape and size are meant that each fin of same electric heater direction crooked or bending is identical, and amplitude equates.Electric heater as shown in fig. 1, in each fin, all bendings to the right of top, and the size of bending also equates.So both make the global shape of electric heater comparatively attractive in appearance, simplified the processing technology of fin again, reduced production cost.
The improved fin that provides according to the utility model is provided described fin 1, and concrete structure sees for details following.
As shown in Fig. 1,2, the improved fin that provides according to the utility model, its integral body is the plates 1 of a hollow, the inside of described plates 1 is formed with at least two oil guide groove 10, the upper/ lower terminal 13,14 of described plates 1 is shaped or the adapter sleeve 11 of the hollow that along continuous straight runs extends is installed, the inside of described adapter sleeve 11 forms oil through 12, and the upper/ lower terminal 13,14 of described plates 1 is positioned at different vertical planes; Or the upper/ lower terminal 13,14 of described plates 1 is positioned at same vertical plane, and at least a portion is a bending in the middle of it, forms the structure to lateral projections.
Referring to Fig. 3 to 5, in a kind of preferred embodiment that the utility model provides, the upper/ lower terminal 13,14 of each described fin 1 is positioned at different vertical planes, and the two is connected by a bending part 15, and described bending part 15 comprises two foldings 151,152 that direction is opposite.Difference according to overbending direction, two kinds of versions specifically can be arranged: in scheme shown in Figure 3, the middle and upper part of described fin 1 is deviation left, the similar S type in longitudinal section, and the space that its lower-left and upper right portion form can be used for installing the bigger annex of humidifier equal-volume; In scheme shown in Figure 5, the middle and upper part of described fin 1 is deviation to the right, the similar anti-S type in longitudinal section.Its space upper left and that lower right-most portion forms can be used for the bigger annex of installation volume, thereby the space availability ratio height.
In above preferred embodiment, described two foldings 151,152 all are circular-arc, and the radius of the two equates, arc length is identical, and its radius R is not less than 15 millimeters, and central angle alpha is 30 to 60 degree.The equal in length of described upper end 13 and lower end 14 all is L, and its ratio with the height L1 of described bending part 15 is 1 to 5: 1.Satisfy the fin of above-mentioned size range, not only processing is comparatively convenient, and can guarantee that fin 1 integral body has enough strength and stiffness, also can not form stress concentrates, also help and cover the fin commissure favorable sealing property that forms after two welding mutually, effectively prevent the leakage of the oil groove 10 interior liquid oils of fin 1.Need to prove: because described fin 1 has certain thickness, therefore the radius R of described two foldings 151,152 is meant the radius (referring to Fig. 3 and 5) of the centerline on fin 1 thickness direction; The length of described upper end 13 and lower end 14 be meant from the top (going up or the lower end) to and roll over the distance at 151,152 point of contact.In the preferred embodiment that the utility model provides, the radius R of described two foldings 151 is 20 millimeters, and central angle alpha is 48 °, and the length L of described epimere 13 and hypomere 14 is 3.5: 1 with the ratio of the height L1 of described bending part 15.
Referring to Fig. 6 and 7, in the another kind of preferred embodiment that the utility model provides, the upper/ lower terminal 13,14 of each described fin 1 is positioned at same vertical plane, the two is connected by a bending part 15, described bending part 15 comprises folding 153 and the end folding 154 that is positioned at described middle folding 153 two ends in the middle of one, it is identical that two described ends are rolled over 154 directions, its with described in the middle of direction of folding 153 opposite.According to the difference of overbending direction, two kinds of versions can be arranged specifically: in scheme shown in Figure 6, the middle part of described fin 1 is crooked left, the similar C type in longitudinal section, and the middle part on its right side forms the space that holds annexes such as humidifier; In scheme shown in Figure 7, the middle part of described fin 1 is crooked to the right, and the middle part in its left side forms the space that holds annexes such as humidifier.Thereby improved fin space availability ratio on every side, make the electric heater compact overall structure.
In above preferred embodiment, described middle folding 153 and end folding 154 all are circular-arc, and the radius R 1 of described middle folding 153 is 80 to 100 millimeters, and central angle β 1 is 40 to 70 degree; The radius R 2 of described end folding 154 is 15 to 30 millimeters, and central angle β 2 is 30 to 50 degree.The equal in length of described upper end 13 and lower end 14, its ratio with the height of described bending part 15 is 1 to 0.2: 1.Satisfy the fin of above-mentioned size range, not only processing is comparatively convenient, and can guarantee that fin 1 integral body has enough strength and stiffness, also can not form stress concentrates, also help the commissure favorable sealing property that forms fin after two welding that cover mutually, effectively prevent the leakage of liquid oils in the oil groove 10 of fin 1.The same, the radius of described middle folding 153 and end folding 154 also is meant the radius of the centerline of described fin 1 on thickness direction; The height of described upper end 13 and lower end 14 is meant the distance that (goes up or the lower end) and hold the point of contact of folding 154 from the top.In the above preferred embodiment that the utility model provides, the radius R 1 of described middle folding 153 is 90 millimeters, and central angle β 1 is 51 degree; The radius R 2 of described end folding 154 is 25 millimeters, and central angle β 2 is 35 degree.The length L of described upper end 13 and lower end 14 is 0.32: 1 with the ratio of the height L1 of described bending part 15.
Above preferred embodiment is only for the usefulness that the utility model is described; those of ordinary skill in the art; under the guide that does not break away from spirit and scope of the present utility model; also can make various distortion and conversion; for example fin is bent to other shape, so all equivalent technical solutions all belong to protection domain of the present utility model.