CN207360142U - Automotive seat and its heating cushion - Google Patents
Automotive seat and its heating cushion Download PDFInfo
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- CN207360142U CN207360142U CN201720499956.XU CN201720499956U CN207360142U CN 207360142 U CN207360142 U CN 207360142U CN 201720499956 U CN201720499956 U CN 201720499956U CN 207360142 U CN207360142 U CN 207360142U
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- heating
- electric heating
- heating wire
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Abstract
The utility model discloses a kind of heating cushion, the heating cushion particularly for automotive seat, it includes：Carrier；Fixed positive and negative electrode on the carrier, for being connected with 48V power supplys；Multiple electric heating wires that are fixed and being connected with positive and negative electrode conduction on the carrier, a heating zone is limited by the multiple electric heating wire between the positive and negative electrode, it is characterized in that, the heating zone includes multiple subregions extended laterally between positive and negative electrode, at least one electric heating wire is equipped with least one subregion, it is connected up in the subregion in a manner of specific printed words or figure, so that the absolute value of the difference of thermal power densities in the sub- heating zone between any two measuring point is less than a setting, allow the heating cushion when being powered, the overall uniformly heating in the heating zone.
Description
Technical field
It the utility model is related to heating unit, particularly heating apparatus for automobile seats.
Background technology
It is widely used in modern automobiles that seat can be heated.In general, it is this heat seat include seat body with
And the heating cushion arranged in the seat body.Heating cushion is formed by heating unit, and the heating unit includes carrier, carrying
The positive and negative electrode arranged on body and more electric heating wires for leading to arrangement between positive and negative electrode and with electrode conductance.It is because electric
Heater wire is supplied by supplier according to standard production, so the moulding of every electric heating wire is identical.This is used in seat manufacturer
During the electric heating wire assembling heating cushion of kind of standard specification, sometimes for ensuring to heat up uniformly along the longitudinal direction of positive and negative electrode,
Can be by electric heating wire according to needs sparse arrangement parallel to each other.But this arrangement only can ensure that along positive and negative electrode
Substantially longitudinal heating is uniform, can not ensure that heating is uniform in the case of being changed along the lateral separation between positive and negative electrode.
In addition, after heating cushion is fixed in seat body, it is also necessary to seat cover is covered heating cushion and is sewn onto
In seat body.In order to ensure smoothly suture, it is possible to need to open up the fluting of non-regular shape in heating cushion.In seat factory
When business assembles heating cushion using the electric heating wire of this standard specification, in order to avoid the fluting of these non-regular shapes, it is necessary to make
Obtain electric heating wire and leave the very big distance in position that will form fluting, cause area larger around fluting not heat, influence
The overall heating uniformity of heating cushion.
In addition, for the automotive seat with ventilation function, it is also necessary to which through hole is set in heating cushion.In order to avoid
Through hole, it is also desirable to so that electric heating wire leaves very big distance with that will form the position of through hole, equally cause to increase around through hole
Area can not heat, influence the overall heating uniformity of heating cushion.
Utility model content
In view of the above problems, the utility model aims to provide a kind of improved heating unit, is particularly used for automotive seat
Improved heating unit, the electric heating wire arrangement of this heating unit is more reasonable, so that the heating of whole heating unit is more
Add uniformly, wasting space smaller and for heating unit adaptability of different shapes it is stronger.
One side according to the present utility model, there is provided a kind of heating unit, the heating particularly for automotive seat
Device, it includes：
Carrier；
Fixed positive and negative electrode on the carrier, for being connected with power supply；
Multiple electric heating wires that are fixed and being connected with positive and negative electrode conduction on the carrier, in the positive negative electricity
A heating zone is limited by the multiple electric heating wire between pole, it is characterised in that at least one in the multiple electric heating wire
A electric heating wire with the shape different from other electric heating wires by sinuous arrangement so that in the heating zone any two survey
The absolute value of the difference of thermal power densities between amount position is less than a setting, it is allowed to which the heating unit is described when being powered
The overall uniformly heating in heating zone.
Alternatively, the serpentine shape of at least one electric heating wire is rule change.
Alternatively, the serpentine shape of at least one electric heating wire is random change.
Alternatively, there is at least one non-directional edge formed with opening, the opening in the carrier, it is close to be somebody's turn to do
The serpentine shape of the electric heating wire at non-directional edge or its envelope follow or substantially follow the non-directional edge.
Alternatively, a sub- heating zone with the opening direct neighbor, the sub- heating zone are defined on the carrier
An edge and the non-directional edge it is almost parallel, at least one electric heating wire in the multiple electric heating wire is at least
Be positioned partially in the sub- heating zone so that the electric heating wire follow at least in part the sub- heating zone edge or
The envelope of person's electric heating wire follows or substantially follows the edge of the sub- heating zone, especially, the envelope
It is adjacent with the edge.
Alternatively, the opening is arc groove, for mask suture is fixed on the carrier.
Alternatively, formed with through hole in the carrier, close to the serpentine shape or its envelope of the electric heating wire of the through hole
Line is at least partly around the through hole.
Alternatively, the positive and negative electrode is elongated positive and negative electrode, and each other and not parallel, electric heating wire is with loop cycle
Shape is by sinuous arrangement, the amplitude and/or cycle length of the electric heating wire arranged between the positive and negative electrode at relatively narrow distance
More than the amplitude and/or cycle length of the electric heating wire arranged between the positive and negative electrode at wide distance.
Alternatively, length of at least two electric heating wires in the electric heating wire between the positive and negative electrode is identical
's.
Alternatively, length of all electric heating wires between the positive and negative electrode is identical.
Alternatively, each electric heating wire by more carbon fiber wires compile around into.
Alternatively, the power supply being connected with the positive and negative electrode is 48V power supplys, and the heating zone includes multiple in positive and negative electrode
Between the subregion that extends laterally, at least one electric heating wire is equipped with least one subregion, it is in the sub-district
Connected up in domain in a manner of specific printed words or figure, so that the heat in the sub- heating zone between any two measuring point
The absolute value of the difference of power density is less than a setting, it is allowed to which for the heating unit when being powered, the heating zone is integrally uniform
Heating.
Alternatively, the cross sectional dimensions of at least two electric heating wires in the electric heating wire can be identical or different
's.
Alternatively, the electrode and/or the electric heating wire are fixed on the carrier by way of sewing or being bonded
On.
Alternatively, at least one electric heating wire in the electric heating wire is connected up in a manner of seamlessly transitting.
Alternatively, in the subregion, electric heating wire cloth in a manner of the trade mark, word or numeral of automobile vendor
Line.
Other side according to the present utility model, additionally provides a kind of automotive seat heating cushion, wherein, the heating
Pad includes foregoing heating unit.
Other side according to the present utility model, additionally provides a kind of automotive seat, it include seat body and
Arranged in the seat body according to foregoing heating cushion.
Other side according to the present utility model, there is provided a kind of heating cushion, the heating particularly for automotive seat
Pad, it includes：
Carrier；
Fixed positive and negative electrode on the carrier, for being connected with 48V power supplys；
Multiple electric heating wires that are fixed and being connected with positive and negative electrode conduction on the carrier, in the positive negative electricity
A heating zone is limited by the multiple electric heating wire between pole, it is characterised in that the heating zone includes multiple in positive negative electricity
The subregion extended laterally between pole, is equipped with least one electric heating wire, it is in the son at least one subregion
Connected up in region in a manner of specific printed words or figure, so that in the sub- heating zone between any two measuring point
The absolute value of the difference of thermal power densities is less than a setting, it is allowed to which for the heating cushion when being powered, the heating zone is integrally uniform
Heating.
Alternatively, each electric heating wire by more carbon fiber wires compile around into.
Alternatively, the cross sectional dimensions of at least two electric heating wires in the electric heating wire can be identical or different
's.
Alternatively, the electrode and/or the electric heating wire are fixed on the carrier by way of sewing or being bonded
On.
Alternatively, at least one electric heating wire in the electric heating wire is connected up in a manner of seamlessly transitting.
Alternatively, in the subregion, electric heating wire cloth in a manner of the trade mark, word or numeral of automobile vendor
Line.
Other side according to the present utility model, there is provided a kind of automotive seat, it includes seat body and in institute
State arranged in seat body according to foregoing heating cushion.
Brief description of the drawings
From it is described later describe in detail and with reference to following attached drawing be able to will be more fully understood the foregoing of the utility model and its
Its aspect.It is pointed out that the ratio of each attached drawing is possible to different for clarity of illustration, but this can't be influenced
Understanding to the utility model.In the accompanying drawings：
Fig. 1 diagrammatically illustrates the heating unit of the trapezoidal prior art；
Fig. 2 diagrammatically illustrates the trapezoidal heating unit according to the utility model one embodiment；
Fig. 3 diagrammatically illustrates another heating unit of the prior art；Wherein, heating unit offers two arcs
Groove；
Fig. 4 diagrammatically illustrates the heating unit according to another embodiment of the utility model, itself and the heating shown in Fig. 3
Device is corresponding, also is provided with two arc grooves；
Fig. 5 diagrammatically illustrates another heating unit of the prior art, wherein, heating unit be equipped with multiple through holes and
Two arc grooves；
Fig. 6 diagrammatically illustrates the heating unit according to another embodiment of the utility model, itself and the heating shown in Fig. 5
Device is corresponding, also is provided with multiple through holes and two arc grooves；
Fig. 7 a and 7b diagrammatically illustrate two kinds of different heating units for 12V the and 48V voltage specification prior arts
In wiring pattern；
Fig. 8 is diagrammatically illustrated in the heating unit of one embodiment of the utility model for 48V voltage specifications
Wiring pattern.
Embodiment
In each attached drawing of the utility model, structure is identical or intimate feature is indicated by the same numbers.
The utility model provides a kind of heating unit, the particularly heating unit for automotive seat.The heating dress
Put and can be used in the heating cushion to form automotive seat.Heating unit includes carrier, the positive and negative electrode arranged on carrier, Yi Ji
Lead to multiple electric heating wires of arrangement between positive and negative electrode and with electrode conductance.In embodiment according to the present utility model, each
Electric heating wire can be for example compiled around into so as to bend to any shape as needed by more carbon fiber wires.Should be clear
Chu is in the embodiment of the utility model, and electrode and/or electric heating wire can be to sew, be bonded or any the art
Well known means are fixed to carrier.
Fig. 1 diagrammatically illustrates a kind of heating unit 100 of the prior art.The heating unit 100 includes substantially trapezoidal
Carrier 101.Be disposed with substantially in parallel with two trapezoidal bevel edges on carrier 101 two elongated positive and negative electrodes 102 and
103.Electrode 102 can be connected with 103 with power supply (not shown).Multiple electric heating wires 104 are with least partially in 102 He of electrode
Mode between 103 is arranged on carrier 101.These electric heating wires 104 are manufactured and supplied with the specification of uniform shapes by supplier
Should.Therefore, as shown in Figure 1, although each electric heating wire 104 is sinuous shape, but each electric heating wire 104 is shape each other
Shape is identical.The distance that different electric heating wires 104 connects between electrode 102 and 103 is different.In Fig. 1, respectively with
This difference is represented exemplified by distance L1, L2 and L3, wherein, L1<L2<L3.When electrode 102 and 103 is connected with power supply and when being powered,
Electric current flows separately through the electric heating wire that these three distances represent.Because the cross-sectional dimensions of each electric heating wire 104 are identical,
The resistance of each electric heating wire 104 is directly proportional to its distance between the electrodes.That is, within a certain period of time these three away from
Programming rate from the electric heating wire of representative is different, and the transverse area heating residing for the electric heating wire representated by L1 is most
It hurry up, and the transverse area heating residing for the electric heating wire representated by L3 is most slow.In order to solve the problems, such as that this programming rate is different,
A measure of the prior art is to be spaced at different intervals each electric heating wire 104 each other, for example, at L3, is put down each other
The more electric heating wires of row arrangement, and less electric heating wire arranged parallel to each other at L1.But because each electric heating wire
Heating power between two electrodes is different (since length between two electrodes is different), so
It is sometimes difficult to only ensure laterally homogeneous heating by varying wiring spacing, that is to say, that can still cause electric heating wire relatively to gather
The situation that the region heating put is faster than the region that electric heating wire relatively dredges arrangement occurs.
For this trapezoidal shape, Fig. 2 diagrammatically illustrates the heating unit according to the utility model one embodiment
200.The heating unit 200 includes substantially trapezoidal carrier 201.It is almost parallel with two trapezoidal bevel edges on carrier 201
Ground is disposed with two elongated positive and negative electrodes 202 and 203.Electrode 202 can be connected with 203 with power supply (not shown).Multiple electricity
Heater wire 204 is arranged on carrier 201 in a manner of at least partially between electrode 202 and 203.In the embodiment shown in Fig. 2
In, it is identical that each electric heating wire 204 is arranged to its length between two electrodes 202 and 203, it means that each electricity adds
The resistance value between two electrodes 202 and 203 of hot line 204 is identical, the fever of each electric heating wire when causing to be powered
Power is also identical.
In fig. 2, each electric heating wire 204 is arranged in a manner of wriggling, but sinuous mode is different from each other.For example,
In two electrodes 202 and 203 each other near immediate position (near the trapezoidal shorter upper bottom edge in such as Fig. 2, L1), one
Electric heating wire 204 is connected up in a manner of being similar to sine wave or cosine wave；And two electrodes 202 and 203 each other farthest away from
Position (near the trapezoidal longer bottom in such as Fig. 2, L3), an electric heating wire 204 is also to be similar to sine wave or cosine
The mode of ripple connects up, but the amplitude of the waveform of previous electric heating wire is significantly greater than the width of the waveform of the latter electric heating wire
Degree.In this way, electric heating wire 204 is arranged parallel to each other in the mode being sequentially reduced from upper bottom edge to bottom amplitude.In each electricity
In the waveform envelope line area defined of heater wire, the arrangement route distribution of electric heating wire is more uniform, causes heating more
Uniformly, particularly may insure more uniform along the horizontal heating between two electrodes.
In addition, in addition to changing the amplitude of waveform, the cycle of waveform can also be changed, such as with from upper bottom edge to bottom
Side wave period is sequentially reduced or the mode that increases changes, so as to fulfill heating up more uniform.
In addition, it is necessary to the waveform being clear that in Fig. 2 is not limited to sine wave or cosine wave or sawtooth waveforms, side
The waveform of any loop cycle such as ripple change, wherein the amplitude of this waveform and/or cycle can change according to above-mentioned requirements.
Furthermore in the embodiment shown in Figure 2, the spacing between each electric heating wire 204 can also according to needing difference,
Further ensure that the heating of whole heating unit is uniform.
Fig. 3 diagrammatically illustrates another heating unit 100 ' of the prior art.This heating unit 100 ' for example can be with
It is used as the heating unit of automotive seat.This heating unit 100 ' includes generally rectangular shaped carrier 101 '.In carrier 101 '
Upper and rectangle two long sides are disposed with two elongated positive and negative electrodes 102 and 103 substantially in parallel.Multiple electric heating wires 104
It is arranged in a manner of being at least partially disposed between positive and negative electrode on carrier 101 '.These electric heating wires 104 are by supplier to unite
The specification of one shape is manufactured and supplied.Positive and negative electrode 102 and 103 and electric heating wire 104 in Fig. 3 can with shown in Fig. 1
It is identical.One mask (not shown) of covering is also needed on the outer surface of heating unit 100 '.In order to fix mask, it is necessary to add
Groove 105 is opened up in thermal 100 ', in figure 3 for example, two grooves 105.This groove 105 is typically arc, such as
Shown in Fig. 3, and it is formed through carrier.Therefore, when manufacturing heating unit, electric heating wire 104 needs to avoid groove 105
Wiring.But because electric heating wire 104 is uniform specification supply, in order to avoid the groove 105 of arc, it is necessary to from it
Connect up farther out, so as to produce shadow region 106 as shown in Figure 3.These shadow regions can not be according to needing to heat up.It is that is, right
For this heating unit 100 ' of Fig. 3, because the presence in shadow region 106, equal difficulty is connected up anyway using the prior art
To accomplish that whole heating unit uniformly heats up.For example, the right side dotted line frame in Fig. 3 diagrammatically illustrates this heating unit 100 '
Heating zone, i.e., the region that electric heating wire can connect up.As can be seen that because the presence in shadow region 106, the heating zone is by two
Very big interstice coverage (not arranging electric heating wire area) separates.
Fig. 4 diagrammatically illustrates the heating unit 300 according to another embodiment of the utility model, its with shown in Fig. 3
Heating unit 100 ' is corresponding, also is provided with two arcuate furrows 305.Heating unit 300 for example may serve as automotive seat
Heating unit, including generally rectangular shaped carrier 30 as one kind 1.Two long sides with rectangle on carrier 30 as one kind 1 are disposed with substantially in parallel
Two elongated positive and negative electrodes 302 and 303.Shape and position of two arcuate furrows 305 with two grooves 105 as shown in Figure 3
Put identical, and carrier 30 as one kind 1 is identical with the shape of the carrier 101 ' shown in Fig. 3.
Multiple electric heating wires 304 are conductive between two electrodes 302 and 303 to be conjointly routed on carrier 30 as one kind 1.Each electricity
Heater wire 304 by wriggling is formed, and near an arcuate furrow 305 arc-shaped side edges electric heating wire 304 by moulding
Separated for the envelope close to the arc-shaped side edges of its waveform that wriggles with the arc-shaped side edges, while the spacing between them can be selected
Be selected to it is as far as possible small, with do not influence the later stage of seat cover sewing fixation be preferred.
Four envelopes 311,312,313 and 314 are respectively illustrated for two arcuate furrows 305 in Fig. 4, they
Formed respectively by four electric heating wires 304 near arcuate furrow 305.In addition, remaining electric heating wire 304 respectively near
That electric heating wire 304 of arcuate furrow 305 outwards connects up sinuously successively.Preferably or alternatively, each electric heating wire
304 shapes wriggled each other are different.Finally, the electric heating wire 304 of the highest and lowest in Fig. 4 two is away from lower arcuate groove
That side of 305 outermost can alternatively have generally flat envelope.
Different from the heating unit 100 ' shown in Fig. 3, the wiring of electric heating wire 304 in heating unit 300 is without too more
Arcuate furrow 305 is avoided on ground, it is thus eliminated that the shadow region 106 shown in Fig. 3.That is, further expand electric heating wire
The region that can be connected up.For example, in the right side of Fig. 4, region/heating zone that the electric heating wire of heating unit 300 can connect up includes
Subregion 331,332 and 333.It should be clear that the serpentine shape of each electric heating wire 304 can be different from each other, but it is ensured that each son
The heating value at any one position in region 331,332 and 333 keeps roughly the same, so that all subregion 331,332
With 333 uniformly heatings.In the context of the utility model, the heating value at any one position is referred to can for electric heating wire
The region of wiring, the interior heating power being powered in heating unit when starting of an optional unit area (such as 10 centimetres of length and width),
Can be described as thermal power densities, its can by any suitable measuring instrument actual measurement heating unit well known to those skilled in the art and
Know.
In the utility model, because the serpentine shape of each electric heating wire 304 is unrestricted, by arbitrarily wriggling on demand
Yan arranges electric heating wire 304, it can be ensured that the thermal power of any one measuring point in per sub-regions 331,332 and 333
Density difference is little, such as the absolute value of the difference of the thermal power densities between any two measuring point is less than a setting
Words, it becomes possible to it is uniform to be considered as the region heating that whole electric heating wire can connect up.
Those skilled in the art are also apparent that wriggling for the electric heating wire 304 near the arc-shaped side edges of arcuate furrow 305
Yan waveforms close to the arc-shaped side edges envelope without strictly with the arc-shaped side edges spaced at equal intervals or follow or
Substantially follow the arc-shaped side edges.In the context of the utility model, " follow or substantially follow " meaning
Envelope need not be strictly identical with the shape of arc-shaped side edges, and enough evaded distances are reserved therebetween as long as being able to ensure that
.The sinuous waveform for being possibly even arranged to electric heating wire 304 itself follows or substantially follows the arc-shaped side edges.
In addition, the electric heating wire 304 of highest and lowest two in Fig. 4 can also have in that side of outermost away from lower arcuate groove 305
There is the envelope of non-straight.
In the embodiment of the utility model, term " wiring " refers to changing in an appropriate manner the shape of electric heating wire
And carrier is secured it in an appropriate manner.In addition, the cycle period of the shape of electric heating wire can be rule or not advise
Then.In the context of the utility model, " cycle period of shape is regular " means to form every height of the shape
The amplitude and/or cycle length of shape are constant.That is, the serpentine shape of electric heating wire is rule change.And " shape
The cycle period of shape is irregular " mean form the shape at least two sub- shapes amplitude and and/or cycle length
It is change.That is, the serpentine shape of electric heating wire is irregular change.By taking Fig. 2 as an example, any one electric heating wire
204 cycle periods that can be considered as its wiring shape are regular, that is, form each electric heating wire 204 wiring shape it is each
Monocyclic sine wave or cosine wave are identical.That is, the serpentine shape of electric heating wire 204 is rule change.And
By taking Fig. 4 as an example, the cycle period that any one electric heating wire 304 can be considered as its wiring shape is irregular, that is, is formed every
The each monocyclic sine wave or cosine wave of the wiring shape of a electric heating wire 304 are different.That is, electrical heating
The serpentine shape of line 304 is random change.
Fig. 5 diagrammatically illustrates another heating unit 100 of the prior art ", this heating unit, which is suitably employed in, to be carried
On the automotive seat of ventilation function, therefore it is additionally provided with what is formed through carrier with differing only in for the heating unit 100 ' of Fig. 3
Multiple ventilation holes 108.Therefore, in order to avoid these ventilation holes 108, heating unit 100 " the region ratio that can connect up of electric heating wire
Heating unit 100 ' it is more scattered (as shown in the right side of Fig. 5 and 3) and thus heat up it is more uneven.
Fig. 6 diagrammatically illustrates the heating unit 400 according to another embodiment of the utility model, its with shown in Fig. 5
Heating unit 100 " is corresponding, also is provided with multiple ventholes 408, is illustrated as eight.Heating unit 400 includes being in substantially square
The carrier 401 of shape.Two elongated positive and negative electrodes 402 are disposed with substantially in parallel with two long sides of rectangle on carrier 401
With 403.Heating unit 400 has two arcuate furrows 405, such as shape that can be with groove as shown in Figures 3 and 5 and position
It is identical, and the shape of the carrier shown in carrier 401 and Fig. 3 and 5 is also identical.Except what is mentioned for above-described embodiment of Fig. 4
Near the electric heating wire of the arc-shaped side edges of arcuate furrow sinuous waveform close to the arc-shaped side edges envelope follow or
Substantially follow beyond the arc-shaped side edges, in the heating unit 400 shown in Fig. 6, the electric heating wire 404 near through hole 408
Wriggled at least a portion of its serpentine shape at least partly around through hole 408 around, so as to avoid that shown in Fig. 5
Kind causes the excessive situation in gap to occur because avoiding through hole.In this way, shown on the right side of Fig. 6, the electric heating wire of heating unit 400
The region that can be connected up includes subregion 431,432 and 433, and the through hole in all subregion will not cause very big shadow to heating difference
Ring, can avoid avoiding the excessive situation of via clearance as shown in the right side of Fig. 5 as far as possible.Possibly even it is arranged to electricity
The sinuous waveform of heater wire 404 itself at least partly around through hole 408 around.
In heating unit 400, the cabling requirement of electric heating wire 404 is similar with the above-mentioned embodiment discussion for Fig. 4,
The serpentine shape of i.e. each electric heating wire 404 is unrestricted, so by the arrangement electric heating wire 404 that arbitrarily wriggles on demand, can be true
The thermal power densities for protecting any one measuring point in per sub-regions 431,432 and 433 are not much different, such as any two
If the absolute value of the difference of thermal power densities between a measuring point is less than a setting, it becomes possible to be considered as whole electric heating wire
The region heating that can be connected up is uniform.
Widely used 12V voltages are powered for the heating unit of automotive seat in current automobile.But with electric automobile
Popularization and supply standard change, more and more automobiles will use 48V voltages for automotive seat heating unit supply
Electricity.Fig. 7 a and 7b are diagrammatically illustrated in two kinds of different heating units for 12V the and 48V voltage specification prior arts respectively
Wiring pattern.Because the specification of the electric heating wire in each heating unit is identical, in order to which whole heating unit reaches
To same heating power, it is higher than for the electric heating wire wiring density of the heating unit of 12V voltage specifications for 48V voltages
The electric heating wire wiring density of the heating unit of specification, it can be seen that electric heating wire connects up obvious ratio in the heating zone of Fig. 7 b
It is laxer in Fig. 7 a.In this way, when the cabling scenario for using the prior art carries out cloth for the heating unit of 48V voltage specifications
During line, the heating of whole heating unit is extremely uneven, influences passenger experience.
Fig. 8 diagrammatically illustrates the heating unit 500 of one embodiment of the utility model for 48V voltage specifications.
Heating unit 500 include carrier, be spaced apart on the carrier arrangement elongated positive and negative electrode and with the positive and negative electrode
Conduction conjointly arranges multiple electric heating wires 504 on the carrier.Added between the positive and negative electrode by the multiple electricity
Hot line 504 defines a heating zone.These total lengths of electric heating wire 504 between two electrodes and two shown in Fig. 7 b
The total length of electric heating wire between a electrode is identical.That is, equally in the case of external 48V power supplys, Fig. 7 b and Fig. 8
Total heating power of heating unit be identical.
But in fig. 8, heating zone can be considered as including multiple subregions extended laterally between positive and negative electrode.
Wiring has at least one electric heating wire 504 in per sub-regions.All subregion can be partially overlapped each other according to needs, and
Electric heating wire 504 at least one subregion can be connected up in a manner of specific printed words or figure.For example, in fig. 8, arrow
Signified subregion wiring has two electric heating wires 504, and they constitute specific figure.With the heating unit phase of Fig. 7 b
Than the electric heating wire 504 in heating unit 500 can be arranged in larger range of region, so be able to ensure that in the heating
Heating power is distributed more uniformly across in device 500, causes heating more uniform.
In addition, in the case where the cross-sectional area of electric heating wire is identical, in order to ensure all electric heating wires 504 exist
Total length, i.e. all-in resistance between two electrodes is identical with Fig. 7 b's, and it is smooth bendable that each electric heating wire 504, which can be fabricated to,
, i.e., itself is without the ripplet as shown in Fig. 7 b.In each embodiment of the utility model, each electric heating wire can
Connected up in a manner of seamlessly transitting, that is to say, that each electric heating wire can be by multiple straight sections and multiple buckled zones
Duan Zucheng, and between each straight section and curved section transition smooth-going and without wedge angle.
Preferably, electric heating wire 504 can be with significant pattern wiring, such as with the pattern of automobile vendor, text
Word, numeral etc. connect up so that while heat effect is provided can also emphasis embodiment automotive seat product implication.It is optional
Ground, electric heating wire 504 can be connected up in a manner of any other suitable printed words or figure, as long as ensuring whole heating unit
Heating is as far as possible uniform.
In all of above embodiment mentioned, the cross sectional dimensions of assuming each electric heating wire be it is constant, still
Those skilled in the art it is also evident that, in the technical solution of the utility model, the cross sectional dimensions of each electric heating wire also may be used
To become according to need.For example, in the embodiment shown in Fig. 2,4,6 and 8, additionally and/or alternatively, in all subregion
The cross sectional dimensions of electric heating wire can be according to needing to increased or decrease, so that it is guaranteed that all subregion uniformly heats up.
Although the particular implementation of the utility model is described in detail here, they are used for the purpose of the purpose explained
And provide, and it is not considered that they are construed as limiting the scope of the utility model.In addition, the embodiment of these descriptions can be with that
This mutual any combination.On the premise of not departing from the spirit and scope of the utility model, various replacements, change and transformation can be by structures
Figure out.
Claims (9)
1. a kind of heating cushion, it includes：
Carrier；
Fixed positive and negative electrode on the carrier, for being connected with 48V power supplys；
It is fixed on the carrier and with the conductive multiple electric heating wires being connected of the positive and negative electrode, the positive and negative electrode it
Between pass through the multiple electric heating wire limit a heating zone, it is characterised in that the heating zone include it is multiple positive and negative electrode it
Between the subregion that extends laterally, at least one electric heating wire is equipped with least one subregion, it is in the subregion
It is interior to be connected up in a manner of specific printed words or figure, so that the thermal power in the subregion between any two measuring point
The absolute value of the difference of density is less than a setting, it is allowed to which the heating cushion is when being powered, the overall uniformly heating in the heating zone.
2. heating cushion according to claim 1, it is characterised in that each electric heating wire by more carbon fiber wires compile around and
Into.
3. heating cushion according to claim 1 or 2, it is characterised in that at least two electrical heating in the electric heating wire
The cross sectional dimensions of line is identical.
4. heating cushion according to claim 1 or 2, it is characterised in that at least two electrical heating in the electric heating wire
The cross sectional dimensions of line is different.
5. heating cushion according to claim 1 or 2, it is characterised in that the electrode and/or the electric heating wire pass through seam
The mode threaded or be bonded is fixed on the carrier.
6. heating cushion according to claim 1 or 2, it is characterised in that at least one electrical heating in the electric heating wire
Line is connected up in a manner of seamlessly transitting.
7. heating cushion according to claim 1 or 2, it is characterised in that in the subregion, the electric heating wire is with vapour
The mode of the trade mark of depot business, word or numeral connects up.
8. heating cushion according to claim 1 or 2, it is characterised in that the heating cushion is the heating for automotive seat
Pad.
9. a kind of automotive seat, it includes seat body and that is arranged in the seat body appoints according to preceding claims
Heating cushion described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499956.XU CN207360142U (en) | 2017-05-08 | 2017-05-08 | Automotive seat and its heating cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720499956.XU CN207360142U (en) | 2017-05-08 | 2017-05-08 | Automotive seat and its heating cushion |
Publications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205897A1 (en) * | 2017-05-08 | 2018-11-15 | 捷温有限责任公司 | Heating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205897A1 (en) * | 2017-05-08 | 2018-11-15 | 捷温有限责任公司 | Heating device |
| CN108859887A (en) * | 2017-05-08 | 2018-11-23 | 捷温有限责任公司 | heating device |
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