CN100420054C - Thermoelectric transducer and method of manufacturing same and method for forming corrugated fin used for the same - Google Patents
Thermoelectric transducer and method of manufacturing same and method for forming corrugated fin used for the same Download PDFInfo
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- CN100420054C CN100420054C CNB2005101290040A CN200510129004A CN100420054C CN 100420054 C CN100420054 C CN 100420054C CN B2005101290040 A CNB2005101290040 A CN B2005101290040A CN 200510129004 A CN200510129004 A CN 200510129004A CN 100420054 C CN100420054 C CN 100420054C
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Abstract
A thermoelectric transducer includes a group of thermoelectric devices having a plurality of P-type thermoelectric devices and a plurality of N-type thermoelectric devices alternately arranged on a thermoelectric device substrate, electrode members for electrically connecting the adjacent P-type and N-type thermoelectric devices in series, and heat exchanging members including electrode portions connected to the electrode members. In the thermoelectric transducer, at least a plurality of electrode portions and a plurality of heat exchanging portions are formed continuously in a corrugated shape to couple the plurality of electrode members to each other along at least the group of thermoelectric devices, and the adjacent heat exchanging members are provided to be electrically insulated from each other. Accordingly, the thermoelectric transducer can be easily formed.
Description
Technical field
The present invention relates to a kind of thermoelectric converter, described thermoelectric converter has the series circuit that comprises N type thermoelectric device and P type thermoelectric device, and absorbs or distribute heat when DC electric current process series circuit.The invention further relates to a kind of method and a kind of method that is formed for the corrugated fin of thermoelectric converter that is used to make thermoelectric converter.
Background technology
With regard to a kind of traditional thermoelectric converter, propose a kind ofly to have with the N type thermoelectric device of flat shape arranged alternate and the thermoelectric converter of P type thermoelectric device.In this thermoelectric converter, each thermoelectric device has the lateral electrode part on the side surface that is installed in them, also has the lip-deep opposite side electrode piece of the opposite side that is installed in them, described thus thermoelectric device is one another in series connection (referring to corresponding to USP No.6,815,814 JP-A-2003-124531).In such thermoelectric device, be used to absorb or distribute from the heat-exchanging piece of the heat of a lateral electrode part and the transmission of opposite side electrode piece and a lateral electrode part and opposite side electrode piece integrated.
With regard to the method that is used to form heat-exchanging piece, in JP-A-8-229615, disclosed a kind of technology (corresponding to USPNo.5,679,106) of corrugated fin of the thermal converter that is used to form the radiator that is used for vehicle etc.According to this technology, make its projection form corrugated fin continuously with the step that forms transom window by bending plate shape fin material with by partly cutting fin material.
In the thermoelectric converter of prior art, heat-exchanging piece and electrode piece are integrally formed, therefore need large-scale forming device.This has increased the cost that forms electrode piece and heat-exchanging piece.
Disclosed in JP-A-2003-124531, thick corrugated fin can be used for having with the N type thermoelectric device of flat shape arranged alternate and the thermoelectric converter of P type thermoelectric device.Yet, in this case, be electrically insulated from each other in order to make adjacent electrode piece and heat-exchanging piece, after corrugated fin was attached to electrode piece, need cut at the connecting portion place that is used for connection electrode will be as the corrugated fin of heat-exchanging piece.
To use for example laser and cutting machine, punching cutting clampers (cutting jig) such as (punching) to cut to think the cutting method of the connecting portion that is used for the waveform fin.At the cutting connecting portion and make it separated from one another when guaranteeing the electric insulation in the separate part at connecting portion, any cutting method all produces the cutting dust, has therefore improved the cutting dust and has entered thermoelectric converter and cause the defective possibility of electric insulation.
In addition, when utilizing waveform fin such as cutting clamper, because the thickness of corrugated fin is thicker, so the needed load of waveform fin becomes bigger, thereby the cutting force that imposes on corrugated fin increases.When cutting force increases, corrugated fin may be out of shape, and influence more frangible thermoelectric device.
Summary of the invention
In view of the above problems, an object of the present invention is to provide a kind of thermoelectric converter that wherein can form a plurality of heat-exchanging pieces continuously.
Another object of the present invention provides a kind of thermoelectric converter and utilizes the step of making needed minimizing and the method for making thermoelectric converter man-hour.
Another object of the present invention provides the method for a kind of thermoelectric converter, manufacturing thermoelectric converter and is formed for the method for the corrugated fin of thermoelectric converter, described method may be utilized the little cutting force cutting connecting portion of the heat exchange department of formation continuously, and can not produce the cutting dust.
Another object of the present invention provides the method for a kind of thermoelectric converter, manufacturing thermoelectric converter and is formed for the method for the corrugated fin of thermoelectric converter, and described method can improve the insulation property between the adjacent heat exchange department that forms continuously.
According to an aspect of the present invention, a kind of thermoelectric converter comprises: the thermoelectric device substrate; One group of thermoelectric device comprises a plurality of P type thermoelectric devices and a plurality of N type thermoelectric device of arranged alternate on the thermoelectric device substrate; Electrode piece is made by electric conducting material, is used to be electrically connected P type thermoelectric device and the N type thermoelectric device on the thermoelectric device substrate disposed adjacent one another; And heat-exchanging piece, have be connected to electrode piece with the transmission heat to the electrode part here and the heat exchange department that is used to absorb and distributes the heat that transmits from electrode part.In described thermoelectric converter, adjacent P type is one another in series via electrode piece with N type thermoelectric device and is connected.And, in the electrode part and heat exchange department in heat-exchanging piece, at least a plurality of electrode part and a plurality of heat exchange department form waveform shape continuously, so that a plurality of electrode piece is connected to each other along described at least thermoelectric device group, and adjacent heat-exchanging piece is set to be electrically insulated from each other.
Because a plurality of heat-exchanging pieces form waveform shape continuously, and are bonded to an end face of electrode piece, form and the needed step number of assembling heat-exchanging piece so may effectively reduce.
And, owing to heat-exchanging piece is electrically insulated from each other by the cutting connecting portion, so may make heat-exchanging piece be connected to thermoelectric device via electrode piece.
For example, in heat-exchanging piece, a plurality of adjacent heat exchange departments connect into waveform shape continuously via connecting portion, and adjacent heat exchange department is electrically insulated from each other by the cutting connecting portion.In this case, can use the fixedly end face of heat exchange department of the fixture that has writing board shape and make by insulating material, wherein cut away connecting portion from described end face.Alternatively, the electrode part of heat-exchanging piece can fit into a plurality of mating holess that form at certain intervals in insulated substrate.
And described a plurality of heat exchange departments can be set to waveform shape continuously via each connecting portion that all has curved portions, and adjacent heat exchange department can be electrically insulated from each other by the cutting connecting portion, and the turning of the curved portions of the connecting portion of cutting can have the cutting lug boss.Therefore, may form for instance and can on the less groove of the thickness with connecting portion, guide the cutting blade that is used to cut connecting portion.As a result, may utilize little cutting force cutting connecting portion, and can not produce the cutting dust.
For example, the curved portions of the connecting portion of cutting is cut and projection, so that have the width W f greater than the width W a of heat exchange department.
According to a further aspect in the invention, a kind of method of making thermoelectric converter may further comprise the steps: form a plurality of heat-exchanging pieces, each heat-exchanging piece all comprises successively by using electric conducting material to form first heat exchange department, electrode part, second heat exchange department and the connecting portion of waveform shape continuously; Form the thermoelectric device substrate, on described substrate, a plurality of P type thermoelectric devices become lattice pattern with a plurality of N type thermoelectric devices cardinal principle arranged alternate, to arrange one group of thermoelectric device; Electrode piece is placed on the P type thermoelectric device and N type thermoelectric device on the thermoelectric device substrate disposed adjacent one another, then makes electrode piece be attached to P type thermoelectric device, make electrode piece be attached to N type thermoelectric device; Electrode part along described at least thermoelectric device group is placed a plurality of heat-exchanging pieces of many rows then makes electrode piece be attached to electrode part, wherein forms on an end face of electrode piece in the step of heat-exchanging piece, and described heat-exchanging piece forms waveform shape; And cut the connecting portion that between the adjacent heat exchange department of a plurality of heat-exchanging pieces, forms, and heat-exchanging piece is electrically insulated from each other, wherein in the step in conjunction with heat-exchanging piece, the electrode part of described a plurality of heat-exchanging pieces is bonded to electrode piece respectively.Therefore, can be easy to form thermoelectric converter.
And, may form the cutting lug boss that can on the groove of minimal thickness, guide cutting blade with connecting portion.As a result, may utilize little cutting force cutting connecting portion, and can not produce the cutting dust.
Described method can further be provided with the interim installation step after forming heat-exchanging piece, wherein, electrode part is engaged in or is pressed in the mating holes, and described mating holes is formed in the insulated substrate at certain intervals, described insulated substrate is configured as flat board, and is made by insulating material.And in the step that forms heat-exchanging piece, a plurality of heat-exchanging pieces are processed to form by roller and are waveform shape.Therefore, can reduce the step number of making thermoelectric converter.
According to a further aspect in the invention, provide a kind of manufacturing to be used to form the method for the corrugated fin of a plurality of heat-exchanging pieces, wherein each heat-exchanging piece all comprises heat exchange department, electrode part, heat exchange department and connecting portion, be configured as the fin material of being with shape and making by electric conducting material by use, heat exchange department, electrode part, heat exchange department and connecting portion form waveform shape continuously according to described order, said method comprising the steps of: the direction at connecting portion upper edge connecting portion to be cut forms groove; Make the part place bending of fin material between electrode part, heat exchange department and connecting portion, so that they form waveform shape; Make the transom window (louver) in the heat exchange department between crest and the trough form waveform shape; And forming the cutting lug boss, described cutting lug boss is used for the starting point guiding cutting blade from the end of groove.Therefore, may be easy to use cutting blade to carry out cutting by the guiding of cutting lug boss.
Description of drawings
According to the detailed description of the preferred embodiment that provides below with reference to accompanying drawing, it is more obvious that above and other objects of the present invention, characteristic and advantage will become, wherein:
Fig. 1 is the plane graph that the part of the thermoelectric converter in the first embodiment of the present invention is shown;
Fig. 2 is the sectional view that obtains along the line II-II shown in Fig. 1;
Fig. 3 is the sectional view that obtains along the line III-III shown in Fig. 2;
Fig. 4 is the exploded sketch that the structure of the thermoelectric converter in the first embodiment of the present invention is shown;
Fig. 5 is the plane graph that the structure of the second insulated substrate in the first embodiment of the present invention is shown;
Fig. 6 A and Fig. 6 B are the sectional views that obtains along the line VI-VI shown in Fig. 1 before and after the cutting;
Fig. 7 is the diagram that is illustrated in seven steps in the first embodiment of the present invention;
Fig. 8 is the schematic sectional view that the structure of the thermoelectric converter in the second embodiment of the present invention is shown;
Fig. 9 A is the plane graph that first fixture in the second embodiment of the present invention is shown, and Fig. 9 B is the sectional view that obtains along the line IXB-IXB shown in Fig. 9 A;
Figure 10 is the schematic sectional view that the structure of the thermoelectric converter in the modification of the second embodiment of the present invention is shown;
Figure 11 is the schematic diagram of the cutting step in the modification of the present invention;
Figure 12 is the schematic diagram of the cutting step in the modification of the present invention;
Figure 13 is the schematic sectional view of structure that the thermoelectric converter of the third embodiment of the present invention is shown;
Figure 14 is the plane graph that the thermoelectric converter among Figure 13 is shown;
Figure 15 is the sectional view that obtains along the line XV-XV among Figure 13;
Figure 16 is the sectional view that obtains along the line XVI-XVI among Figure 14;
Figure 17 is the exploded view that the structure of the thermoelectric converter among Figure 13 is shown;
Figure 18 is the decomposition diagram that the manufacturing process of the thermoelectric converter among Figure 13 is shown;
Figure 19 A is the plane graph when the direction that moves from cutting blade is seen, Figure 19 B is the end view of Figure 19 A;
Figure 20 is the perspective view that the cutting step in the manufacturing process of the thermoelectric converter among Figure 13 is shown;
Figure 21 is the schematic diagram that is illustrated in the cutting step Figure 20 when insert tip is seen mobile cutting blade;
Figure 22 is the diagram of method technology that is used to form the corrugated fin of the thermoelectric converter among Figure 13; And
Figure 23 is the diagram of the method technology that is used to form corrugated fin that the modification of a third embodiment in accordance with the invention is shown.
Embodiment
(first embodiment)
To the first embodiment of the present invention be described referring to Fig. 1 to 7.Fig. 1 illustrates the part of the thermoelectric converter among first embodiment.
The thermoelectric converter of the present embodiment as shown in Fig. 2 and Fig. 4 comprises: thermoelectric device substrate 10 has a plurality of P type thermoelectric devices 12 and a plurality of N type thermoelectric device 13 of alinement thereon; Electrode piece 20 is used to be electrically connected adjacent thermoelectric device 12 and 13; And heat-exchanging piece 25, so that the mode of conduction heat is connected to electrode piece 20.
As shown in Figure 3, by (for example by slab insulant, glass epoxy, PPS resin, LCP resin or PET resin) arranged alternate that is in line on first insulated substrate 11 made comprises one group of thermoelectric device of a plurality of P type thermoelectric devices 12 and a plurality of N type thermoelectric devices 13, form thermoelectric device substrate 10, thereby they are integrated into one.
The P type semiconductor that P type thermoelectric device 12 is made up of the Bi-Te based compound, the N type semiconductor that N type thermoelectric device 13 is made up of the Bi-Te based compound.Thermoelectric device substrate 10 is integrally formed, makes P type thermoelectric device 12 and N type thermoelectric device 13 be arranged in lattice pattern on first insulated substrate 11.Simultaneously, P type thermoelectric device 12 and N type thermoelectric device 13 form, so that protrude its top end face and bottom surface from first insulated substrate 11.
Thus, for electrode piece 20 as shown in Figure 3, the electrode piece 20 and arrangement electrode piece 20 flat shapes within it that are arranged on top and the bottom differ from one another, but arrange so that adjacent thermoelectric device 12,13 is put ways of connecting each other.Here, electrode piece 20 is soldered to the end face of thermoelectric device 12,13 by scolder, and this will be described in detail below.
Then, heat-exchanging piece 25 is formed by the conducting metal that for example copper etc. has minimal thickness (for example, about 0.2mm), and the cross section forms the shape of approximate letter U.As shown in Fig. 6 A, heat-exchanging piece 25 has electrode part 25a on the bottom, at the transom window 25b that has heat exchange department from the outward extending plane of electrode part 25a.These transom windows 25b is used to absorb or distribute from the fin of the heat of electrode part 25a conduction, and integrally formed with electrode part 25a by cutting and projection etc.
Described a plurality of heat-exchanging piece 25 is constructed such that the part between the adjacent transom window 25b is connected to each other via connecting portion 25c.In other words, in this embodiment, heat-exchanging piece 25 does not form single part, but a plurality of heat-exchanging piece 25 forms in collective's mode, and electrode part 25a is attached to electrode piece 20, and then connecting portion 25c is cut, so that heat-exchanging piece 25 is electrically insulated from each other.
Particularly, a plurality of heat-exchanging pieces 25 form waveform shape along one group of thermoelectric device in the thermoelectric device 12,13 that is arranged in lattice pattern on thermoelectric device substrate 10 via the connecting portion 25c between the adjacent transom window 25b at least continuously.That is, as shown in fig. 1, for from first be discharged to the 4th row every row, a plurality of heat-exchanging pieces 25 are connected to each other via connecting portion 25c.
In this embodiment, each heat-exchanging piece 25 that all has electrode part 25a and a transom window 25b forms waveform shape.Therefore, and compare as the example of the heat-exchanging piece 25 of single part by pushing formation, the example that forms a plurality of heat-exchanging pieces 25 by roller processing (roller process) is very high in the productivity ratio of the step that forms transom window 25b especially.
Compare with example by compression technology manufacturing heat-exchanging piece 15 by use formpiston and former, the example of the roller processing of heat-exchanging piece 25 can reduce the equipment cost that forms step, wherein in described roller processing, material is supplied with by roller, thereby forms electrode part 25a, transom window 25b and connecting portion 25c continuously.In the present embodiment, heat-exchanging piece 25 forms has transom window 25b, but also can form have slit, branch (offset) shape etc.
In the present embodiment, as shown in fig. 1, heat-exchanging piece 25 flat shapes that are arranged among first row, second row and the 3rd row are different, but each all forms waveform shape.A plurality of heat-exchanging pieces 25 of making for every row are configured to be arranged on the second insulated substrate 21 with plate shape electrode piece 25b, and wherein said the second insulated substrate 21 is made (for example, glass epoxy, PPS resin, LCP resin or PET resin) by insulating material.
Particularly, as shown in Figure 5, wherein cooperate the mating holes 21a of electrode part 25a in the second insulated substrate 21, to form, and electrode part 25a fit into mating holes 21a, so that heat-exchanging piece 25 and the second insulated substrate 21 is integrated as a whole.Here, the part of representing with Reference numeral 21b is a claw, and described claw is the pawl that protrudes, and is used to prevent that electrode part 21a separates when electrode part 21a from fitting into mating holes 21a.
In addition, as shown in fig. 1, terminal 24a, 24b be arranged on layout in the drawings about the end of electrode piece 20 on the end.The positive terminal of DC power supply (not shown) is connected to the terminal 24a of these terminals 24a, 24b, and the negative terminal of DC power supply is connected to terminal 24b.
Therefore, for the electrode piece on the upside that is arranged in first insulating part 11 20, a plurality of electrode pieces 20 are arranged on the end face of thermoelectric device 12,13, so that electric forming NP knot.And for the electrode piece on the downside that is arranged in first insulating part 11 20, a plurality of electrode pieces 20 are arranged on the end face of thermoelectric device 12,13, so that the electric forming PN junction.
The upper electrode spare 20 of DC electric current left end from figure that the terminal 24a from shown in Fig. 1 as shown in Figure 2 applies is through P type thermoelectric device 12, then flow to the N type thermoelectric device 13 of series connection through lower electrode spare 20, from then on N type thermoelectric device 13 flows to the P type thermoelectric device of series connection continuously via upper electrode spare 20 afterwards.In other words, electrode piece 20 is connected to two end faces of thermoelectric device 12,13, so that make the DC electric current pass through thermoelectric device 12,13 continuously.
Simultaneously, utilize peltier effect, be used in the lower electrode spare 20 that forms PN junction and enter the condition of high temperature, be used in the upper electrode spare 20 that forms the NP knot and enter low-temperature condition.In brief, be arranged in the heat radiation heat exchange department of the transom window 25b formation radiating part on the downside, have the high temperature that is sent to here, and cool off by cooling fluid (for example, air).And the transom window 25b that is arranged on the upside forms the heat absorption heat exchange department of endothermic section, and enters low-temperature condition, to cool off fluid to be cooled.
In other words, as shown in Figure 2, thermoelectric device substrate 10 as partition wall, is formed air duct in the outer casing member on the both sides of thermoelectric device substrate 10 (case members) (not shown), and air is through air duct, with heat-shift between transom window 25b and air.That is, thermoelectric device substrate 10 is used as partition wall, but bottom transom window 25b heated air, and top transom window 25b can cooling air.
In described embodiment, the positive terminal of DC power supply is connected to terminal 24a, and its negative terminal is connected to terminal 24b, so that the DC electric current is through terminal 24a.Yet described connection is not limited thereto, and the positive terminal of DC power supply also can be connected to terminal 24b, and negative terminal is connected to terminal 24a, so that the DC electric current is through terminal 24b.
Yet simultaneously, bottom heat-exchanging piece 25 forms the heat absorption heat exchange department, and upper heat exchange part 25 forms the heat radiation heat exchange department.
Then, use description to make the method for heat-exchanging piece 25 of major part of the present invention and the method that is used to install thermoelectric converter.At first, for the method for making a plurality of heat-exchanging pieces 25, a plurality of heat-exchanging pieces 25 are by the roller processing and manufacturing.That is, band shape electric conducting material is by the feeding of a pair of negative and positive roller, and to form a plurality of heat-exchanging pieces 25, each of described heat-exchanging piece 25 all has transom window 25b, electrode part 25a, transom window 25b and the connecting portion 25c that forms waveform shape continuously.
As shown in Figure 3, a plurality of P type thermoelectric devices 12 form in first insulated substrate 11 with a plurality of N type thermoelectric devices 13 that arranged alternate becomes lattice pattern in the hole, so that Construction integration thermoelectric device substrate 10.Simultaneously, can use and be used for semiconductor, electronic component etc. is installed to erection unit on the plate.This step is referred to as to install the step of thermoelectric device.
Then, each all forms the electrode piece 20 clamped (pinch) of flat shape, afterwards, as shown in Figure 3, is placed on the end face of thermoelectric device 12,13 wherein said thermoelectric device 12,13 close to each other being arranged on the thermoelectric device substrate 10.In the time of on the end face that a plurality of electrode pieces 20 is placed on corresponding thermoelectric device 12,13, thermoelectric device 12,13 is welded to electrode piece 20 by scolder.This step is referred to as the step of welding electrode spare.
Thus, carry out the step of welding electrode spare for each surface.That is, when carrying out the step of welding electrode spare, thermoelectric device substrate 10 is inverted for a surface, and for another surperficial step of carrying out welding electrode spare, to weld described another surface.In addition, on the face of weld that utilizes silk screen printing very thin equably end face that is coated to thermoelectric device 12,13 in advance, when then carrying out the step of welding electrode spare, can be easy to carry out welding with paste flux.
Clamping forms a plurality of heat-exchanging pieces 25 of waveform shape by the step that forms heat-exchanging piece, and one group of thermoelectric device along every row is inserted in electrode piece 25a among the mating holes 21a that forms in the second insulated substrate 21, thereby makes a plurality of heat-exchanging pieces 25 and the second insulated substrate 21 Construction integrations.This is referred to as to install the step of heat-exchanging piece temporarily.Thus, for each surface, also carry out the interim step that heat-exchanging piece is installed.That is, when carrying out this step, thermoelectric device substrate 10 is inverted, is then carried out this step, to weld described another surface for another surface for a surface.
To this cutting step be described based on Fig. 6 A and Fig. 6 B.Fig. 6 A is the schematic diagram when finishing the step of above-mentioned welding heat-exchanging piece, and the state that heat-exchanging piece 25 is electrically connected to each other via connecting portion 25c is shown.As shown in Fig. 6 B, these connecting portions of cutting 25c in described cutting step.Afterwards, adjacent heat-exchanging piece 25 is electrically insulated from each other.
Thus, as shown in Figure 7, when use is used to use the laser technology cutting connecting portion 25c of laser, because when cutting, do not produce the cutting dust, thus can improve the reliability of technology, and can make the cutting equipment automation easily.
In the present embodiment, electrode part 25a is placed on the electrode piece 20, wherein said electrode piece 20 is in such state, the a plurality of heat-exchanging pieces 25 that form waveform shape in the step that forms heat-exchanging piece are installed on the second insulated substrate 21 temporarily, and then electrode part 25a is welded to electrode piece 20 by scolder.Yet, purpose is not for the present invention being limited to this embodiment, but also suggestion, the a plurality of heat-exchanging pieces 25 that form waveform shape in the step that forms heat-exchanging piece are not to be installed on the second insulated substrate 21 temporarily, but electrode part 25a is placed directly on the electrode piece 20, then is welded to them by scolder.
According to manufacture method with above-mentioned steps, at first, utilize the step that forms heat-exchanging piece to form a plurality of heat-exchanging pieces 25 continuously, therefore, the classical production process that heat-exchanging piece manufactures single part is compared by compression technology with utilization, required the quantity of heat-exchanging piece 25 needed formation steps to reduce.
Because a plurality of heat-exchanging pieces 25 form waveform shape continuously, and are welded to an end face of electrode piece 20, so can utilize roller to form heat-exchanging piece 25, this causes formation and heat-exchanging piece 25 needed step numbers is installed is significantly reduced.This has also reduced needed man-hour of manufacturing thermoelectric converter and step number reduces.
The second insulated substrate of being made by slab insulant 21 is provided, and heat-exchanging piece 25 is welded to electrode piece 20, wherein electrode piece 20 is in such state, and electrode part 25a is installed in appointed interval temporarily and is formed in a plurality of mating holess in the second insulated substrate 21.Therefore, can be easy to heat-exchanging piece 25 is installed on a plurality of electrode pieces 20 that are arranged on the thermoelectric device substrate 10, and can be welded on assigned address reliably.
According to the thermoelectric converter according to above-mentioned first embodiment, a plurality of electrode part 25a and a plurality of transom window 25b form waveform shape continuously, then electrode part 25a are welded to an end face of electrode piece 20, and continuous heat-exchanging piece 25 is electrically insulated from each other.Therefore, form a plurality of heat-exchanging pieces 25, and, can significantly reduce forming and installing heat-exchanging piece 25 needed step numbers by they being installed on the electrode piece 20 by collective.This can reduce the quantity of making necessary formation step and man-hour.
In the structure manufacturing process,, when then cutting connecting portion 25c, can be easy to heat-exchanging piece 25 is connected in series to thermoelectric device 12,13 via electrode piece 20 so that heat-exchanging piece 25 is attached to electrode piece 20.This can improve the easness that heat-exchanging piece 25 is installed.In addition, by utilizing laser cutting connecting portion 25c, do not produce the cutting dust, thereby can be easy to make the cutting step automation.This can improve the reliability of assembling.
Heat-exchanging piece 25 is assembled to the second insulated substrate 21 temporarily, then heat-exchanging piece 25 is mounted to electrode piece 20.Therefore, can be easy to heat-exchanging piece 25 is mounted to a plurality of electrode pieces 20, and can be welded on assigned address reliably.
Particularly, the method for manufacturing thermoelectric converter has step that forms heat-exchanging piece and the step of welding heat-exchanging piece.Therefore, can significantly reduce formation and installation heat-exchanging piece 25 needed step numbers.This can reduce makes the necessary formation step and the quantity in man-hour.
A plurality of heat-exchanging pieces 25 form waveform shape continuously by roller processing.Especially, and compare by compression technology, roller processing can significantly improve the productivity ratio of the step that forms transom window 25b.And with comparing by compression technology of use former and anode membrane, roller processing can significantly reduce manufacturing cost.
(second embodiment)
In above-mentioned first embodiment, by the connecting portion 25c that cutting forms between adjacent transom window 25c, heat-exchanging piece 25 is electrically insulated from each other.Yet this embodiment is constructed so that the end between the transom window 25 of cutting is fixed to first fixture 22.
Particularly, as shown in Fig. 8 and Fig. 9 A and 9B, the end that described second embodiment is configured to the transom window 25 that connecting portion 25c cuts away is fixing by first fixture 22 that is configured as plate shape and made by insulating material.Promptly, as shown in Fig. 9 A and Fig. 9 B, fixing hole 22a and depressed part 22b form with appointed interval in first fixture 22 that is configured as plate shape and is made by insulating material, and behind the cutting step of cutting connecting portion 25c, the end of the transom window 25 that connecting portion 25c cuts away is fixing by first fixture 22.The step that this step is called mounting fixing parts.
When cutting connecting portion 25c and they are stayed as among first embodiment, when for example external force being imposed on transom window 25b, because the distortion of the part of adjacent transom window 25, existence can not be guaranteed the possibility of electric insulation.Yet,, utilize the fixedly end of transom window 25b of first fixture 22, thereby can realize electric insulation reliably according to this embodiment.
In addition, in a second embodiment, as shown in Figure 10, before cutting connecting portion 25c, can utilize 26 fixedly connected the 25c of second fixture that are configured as plate shape and make by insulating material.After connecting portion 25c is fixed to second fixture 26, cutting connecting portion 25c.Therefore in view of the above, in cutting step, second fixture 26 can receive cutting force, and can prevent to load by cutting imposes on the face of weld of electrode part 25a.Therefore, it is desirable to the second fixture 22a is fixed to heat-exchanging piece 25 by adhesive etc.
In above-mentioned first and second embodiment, in cutting step, utilize laser cutting connecting portion 25c.Yet, as shown in Figure 11, the invention is not restricted to this cutting, also the structure cutting connecting portion 25c that cutter slides is adopted in suggestion on the direction shown in the arrow.In addition, as shown in Figure 12, also suggestion is adopted by mould 30 and piercer 31 are placed on the last cutting technique to connecting portion 25c punching of connecting portion 25c.In addition, also cutting clamper cutting connecting portion 25c is used in suggestion.For chemical method, also suggestion utilizes the method for etching dissolving connecting portion 25c.
In above-mentioned first and second embodiment, in the step that forms heat-exchanging piece, by using the roller processing of roller, form heat-exchanging piece 25, wherein each heat-exchanging piece all has transom window 25b, electrode part 25a, transom window 26b and the connecting portion 25c that forms waveform shape continuously.Yet purpose is not in order the present invention to be limited to this embodiment, to process formation heat-exchanging piece 25 continuously but can push technology generations for roller yet.
(the 3rd embodiment)
To the third embodiment of the present invention be described referring to Figure 13 to 22 below.
The thermoelectric converter of the present embodiment as shown in Figure 13, Figure 15 and Figure 16 comprises: thermoelectric device substrate 110 has a plurality of thermoelectric devices (more specifically, P type thermoelectric device 112 and N type thermoelectric device 113) that are provided with predetermined arrangement; Electrode piece 116 is used to be electrically connected adjacent P type thermoelectric device 112 and N type thermoelectric device 113; Heat-exchanging piece 122,132 is so that the mode of conduction heat is bonded to electrode piece 116; And first keep substrate 128,138 and second to keep substrate 121,131, is used to keep heat-exchanging piece 122,132.
Insulating material 111 is made by plate shape insulating material (glass epoxy, PPS resin, LCP resin or PET resin).
The well-known thermoelectric element that the P type semiconductor that P type thermoelectric device 112 is made by the Bi-Te based compound is formed, and the well-known thermoelectric element formed of the N type semiconductor made by the Bi-Te based compound of N type thermoelectric device 113.P type thermoelectric device 112 of Shi Yonging and N type thermoelectric device 113 are the very little elements that are used for thermoelectric element in the present embodiment, and thermoelectric device substrate 110 is integrally formed as and makes and on first insulated substrate 111 P type thermoelectric device 112 and N type thermoelectric device 113 are arranged in lattice pattern.Simultaneously, P type thermoelectric device 112 and N type thermoelectric device 113 are set to protrude from the top end face and the bottom surface of first insulated substrate 111.
Particularly, as shown in Figure 13, the two ends of adjacent thermoelectric device 112,113 are electrically connected in series via electrode piece 116.Here, on the upper surface of N type thermoelectric device 113 and P type thermoelectric device 112, electric current flows to P type thermoelectric device 112 from N type thermoelectric device 113, and on the lower surface of N type thermoelectric device 113 and P type thermoelectric device 112, electric current flow to N type thermoelectric device 113 from P type thermoelectric device 112.Terminal 124a and terminal 124b be separately positioned on be arranged in shown in the figure about the end on N type thermoelectric device 113 (figure left end) and P type thermoelectric device 112 (figure right-hand member) on.The positive terminal and the negative terminal of DC power supply (not shown) are connected to terminal 124a and 124b respectively.
Equally, for the electrode piece on the upside that is arranged in insulating part 111 116, a plurality of electrode pieces 116 are arranged on the end face of thermoelectric device 112,113, with electric shape NP knot.For the electrode piece on the downside that is arranged in insulating part 111 116, a plurality of electrode pieces 116 are arranged on the end face of thermoelectric device 112,113, with the electric forming PN junction.Simultaneously, utilize peltier effect, be used in the lower electrode spare 116 that forms PN junction and heat-exchanging piece (below be referred to as " heat-exchanging piece that is used to dispel the heat ") 132 and enter the condition of high temperature, be used in the upper electrode spare 116 that forms the NP knot and heat-exchanging piece (below be referred to as " heat-exchanging piece that is used to absorb heat ") 122 and enter low-temperature condition.
Each heat-exchanging piece 122 (132) (more specifically, being used to heat-exchanging piece 122 that absorbs heat and the heat-exchanging piece 132 that is used to dispel the heat) is made of electrode part 125 (135), heat exchange department 126 (136) and connecting portion 127 (137).As shown in Figure 18, adjacent heat-exchanging piece 122 (132) forms via connecting portion 127 (137) and is connected to each other, to connect adjacent heat exchange department 126 (136).Then, adjacent heat-exchanging piece 122 (132) is distinguished electric insulations.
Particularly, as shown in Figure 18, the heat-exchanging piece 122 (132) of a plurality of continuous connections forms waveform shape continuously, that is, utilize by electric conducting materials such as for example copper and make and plate with appointed thickness (being about 0.3mm in the present embodiment) forms so-called corrugated fin.And each heat-exchanging piece 122 (132) all comprises electrode part 125 (135), is connected to the heat exchange department 126 (136) and the connecting portion 127 (137) that is used to be connected adjacent heat exchange department 126 (136) at electrode part 125 (135) two ends.Then, the arm 127b by cutting away connecting portion 127 (137) (137b is not shown, below identical) makes adjacent heat-exchanging piece 122 (132) be electrically insulated from each other (referring to Figure 16).
As shown in Figure 13 and Figure 16, each electrode part 125 (135) is almost plane portion shape, and so that the mode of transmission heat is bonded to each electrode piece 116.Electrode part 125 (135) is welded to the end face of electrode piece 116 by scolder.
Heat exchange department 126 (136) has transom window, and transom window forms forming continuously between connecting portion 127 (137) on the crest side of waveform shape and the electrode part 125 (135) on the trough side, so as between the crest of waveform shape and trough cutting and projection.In the present embodiment, transom window is to be used for absorbing and distributing from the fin of the heat of electrode part 125 (135).
As shown in Figure 13 and Figure 16, connecting portion 127 (137) has and forms approximate arc and treat divided arm 127b (137b).Arm 127b (137b) is corresponding to arc portion (bend).
The turning of the arm 127b of cutting apart has the cutting lug boss 127c that will describe after a while.Cutting lug boss 127c needn't stay the corner of the arm 127b of cutting apart.For example, use cutting blade 170 to cut away connecting portion 127 (137), and can not produce fragment (cuttings) with little cutting force.As a result, may provide the thermoelectric converter that to realize very high productivity ratio.
As shown in Figure 19 A and Fig. 9 B, in the part of connecting portion 127 (137), groove 127a (137a) is in advance along treating that the crooked inner direction of carrying out cutting that goes up in that the arm 127b of connecting portion 127 (137) (137b) is bent to forms.Here, groove 127a (137a) and cutting lug boss 127c (137c) are provided with like this, make by from the starting point cutting of the end of groove 127a (137a) with convex to form and cut lug boss 127c (137c).
As shown in Figure 20, cut described cutting lug boss 127c (137c) and make its projection, so that along the shape on the cutting edge edge of (follow) cutting blade 170.In view of the above, steadily guide the cutting edge edge of cutting blade 170, the cutting blade 170 that forms by cutting lug boss 127c (137c) with guiding along V-shaped groove 127k (137k).
The width W f (referring to Figure 21) of feasible arm 127b (137b) separately is greater than the width W a (more specifically, being engaged in the width of the part among the first mating holes 128a (138a)) of heat exchange department 126 (136).Therefore, be used to guarantee that the Partial K of cutting away that insulate is formed between the arm 127b (137b) separately (referring to Figure 14 and Figure 16) definitely.By the arm 127b (137b) that separates in this way with the blade width Wc of cutting blade 70 cutting and projection, can promote to cut the insulation behind the connecting portion 127 (137).
First keeps substrate 128 (138) to be made of the tabular insulated substrate made from insulating material (for example, glass epoxy, PPS resin, LCP resin or PET resin).The mating holes 128a (138a) of portion 127 (137) of wherein can being connected keeps formation in the substrate 128 (138) first.Connecting portion 127 (137) is engaged among the mating holes 128a (138a), so that heat-exchanging piece 122 (132) and first keeps substrate 128 (138) integrated.
Second keeps substrate 121 (131) to be made of the tabular insulated substrate made from insulating material (for example, glass epoxy, PPS resin, LCP resin or PET resin).Wherein can cooperate the mating holes 121a (131a) of electrode part 125 (135) to keep forming in the substrate 121 (131) second.Electrode part 125 (135) is engaged among the mating holes 121a (131a), so that heat-exchanging piece 122 (132) and second keeps substrate 121 (131) integrated.
Here, the connecting portion 127 of the heat-exchanging piece 122 that is used for absorbing heat and the electrode part 125 that is used to absorb heat are engaged in the first mating holes 128a and the second mating holes 121a, so that be configured for using first to keep substrate 128 and second to keep substrate 121 one to keep the heat absorption electrode base board 120 of heat exchange department 122.Heat absorption electrode base board 120 constitutes waveform heat-exchanging piece assembly.Heat absorption electrode part 125 and heat exchange department 126 constitute the endothermic section.Here, the heat exchange department 122 that is used to absorb heat is the heat exchange departments that are used to absorb heat.
The connecting portion 137 of the heat-exchanging piece 132 that is used for dispelling the heat and heat sink electrodes portion 135 are engaged in the first mating holes 138a and the second mating holes 131a, so that be configured for using first to keep substrate 138 and second to keep substrate 131 one to keep the heat sink electrodes substrate 130 of heat exchange department 132.The electrode base board 130 that looses constitutes waveform heat-exchanging piece assembly.Here, heat sink electrodes portion 125 and heat exchange department 126 constitute radiating part.
As shown in Figure 13, as partition wall, the thermoelectric converter with above-mentioned structure forms air duct by the outer casing member (not shown) on the both sides of thermoelectric device substrate 110 with thermoelectric device substrate 110.Air is through air duct (referring to Figure 14), thus the transom window of heat exchange department 126 (136) and air exchange heat.Because the transom window and the air exchange heat of heat exchange department 126, so the heat-exchanging piece that is used to absorb heat 122 that is arranged on the upside of thermoelectric device substrate 110 utilizes heat exchange department 126 cooling airs.Simultaneously, because the transom window and the air exchange heat of heat exchange department 136, so the heat-exchanging piece that is used to dispel the heat 132 that is arranged on the downside of thermoelectric device substrate 110 utilizes heat exchange department 136 cooling airs.
The heat-exchanging piece 122 (132) of the thermoelectric converter of the 3rd embodiment is constructed in such a way: be soldered to a plurality of connecting portions 127 (137) that a plurality of electrode part 125 (135) of electrode piece 116, a plurality of heat exchange departments 126 (136) and being used to of being connected to the two ends of electrode part 125 (135) connect adjacent heat exchange department 126 (136) with the mode electric power of transmission heat and form waveform shape continuously; Then, connecting portion 127 (137) is separated, so that the turning of the arm 127b (137b) of the feasible connecting portion 127 (137) that separates has cutting lug boss 127c (137c).
Can utilize little cutting force to cut away connecting portion 127 (137), and not produce the cutting dust.As a result, may provide the thermoelectric converter that to realize very high productivity ratio.
The thermoelectric converter of the 3rd embodiment is provided with: first keeps substrate 128,138, has the first mating holes 128a, 138a, and connecting portion 127,137 can pass described first mating holes; Second keeps substrate 121,131, has the second mating holes 121a, 131a, and electrode part 125,135 can be passed described second mating holes.Connecting portion 127,137 passes the first mating holes 128a, 138a, and electrode part 127,137 is passed the second mating holes 121a, 131a, so that form waveform heat-exchanging piece assembly 120,130.
Therefore, even waveform heat-exchanging piece assembly 120,130 formed before or after electrode part 125,135 is bonded to thermoelectric device 112,113 via electrode piece 116, when cutting away connecting portion 127,137 in order to ensure the insulation between the adjacent heat-exchanging piece 122,132, may reduce or prevent the influence of cutting technique to more frangible thermoelectric device 112,113.
In addition, the thermoelectric converter of present embodiment is constructed so that the separated arc 127b of portion, 137b is cut and projection, thereby makes the width W f of arm 127,137 greater than the width W a of heat exchange department 126,137.
In this way, by arm 127b, the 137b that cutting and projection are separated, can improve cutting connecting portion 127,137 insulation afterwards.
Then, the method that uses description to make the method for thermoelectric converter and be used to form corrugated fin.By described method, a plurality of heat-exchanging pieces 122,132 that are used for thermoelectric converter form waveform shape continuously.Figure 17 to 21 is diagrams that the technology of the method that is used to make thermoelectric converter is shown.Figure 22 is the diagram that the technology of the method that is used to form corrugated fin is shown.
The method of making thermoelectric converter comprises the step and the cutting step of the step of assembling thermoelectric device, the step of welding electrode spare, the step that forms heat-exchanging piece, the step that forms waveform heat-exchanging piece assembly, welding heat-exchanging piece.
In the step of assembling thermoelectric device, as shown in Figure 15, a plurality of P type thermoelectric devices 112 and a plurality of N type thermoelectric device 113 alternately are arranged in lattice pattern in the hole that is formed on insulated substrate 111, have the integrated thermoelectric device 112,113 that is installed on the insulated substrate 111 with formation.Simultaneously, also advise being used to install the erection unit manufacturing thermoelectric device substrate 110 of semiconductor, electronic component etc.
In the step of welding electrode spare, as shown in Figure 15, pick up the electrode piece 116 that forms writing board shape respectively, and place it in specific arrangements and be arranged on the end face of the thermoelectric device 112,113 on the insulated substrate 111, thereby arrange multi-group electrode spare 116 and thermoelectric device 112,113, then thermoelectric device 112,113 and electrode piece 116 are welded to one another by welding.
Carry out step for each surface on two surfaces of thermoelectric device substrate 110 in conjunction with electrode piece.For example, at first positive, next reverse side.That is, electrode piece 116 is bonded to a surface of thermoelectric device 112,113, then, thermoelectric device substrate 10 is inverted, and makes another electrode piece 116 be bonded to another surface of thermoelectric device 112,113.In addition, when utilizing silk screen printing paste flux to be coated on the face of weld of end face of thermoelectric device 112,113 in advance, then carry out when electrode piece 116 is bonded to the step of face of weld of thermoelectric device 112,113, can be easy to carry out the integrating step of utilizing welding.
In the step that forms heat-exchanging piece, as shown in Figure 18, a plurality of heat-exchanging pieces 122 that are used to absorb heat and a plurality of heat-exchanging pieces 132 that are used to dispel the heat form waveform shape continuously.In following description, for the sake of brevity, describe the method that is used to form the heat-exchanging piece 122 that is used to absorb heat, and omit the description of the method that is used to form the heat-exchanging piece 132 that is used to dispel the heat present embodiment.
In the step that forms heat-exchanging piece, as shown in Figure 18 and Figure 22, use band shape electric conducting material (below be referred to as " fin material ") to make a plurality of heat-exchanging pieces (heat-exchanging piece that is used to absorb heat) 122 form waveform shape, each of wherein said a plurality of heat-exchanging pieces all comprises heat exchange department 126, electrode part (heat absorption electrode part) 125, heat exchange department 126 and connecting portion 127 successively.
And as shown in Figure 19 A and Figure 22, the step that forms heat-exchanging piece comprises: form the step of groove, its further groove 127a (137a) forms in above-mentioned connecting portion 127 (137) along the direction of connecting portion 127 (137) to be cut; And the step that forms the cutting lug boss, wherein, make its projection, thereby form cutting lug boss 127c (137c) from the starting point cutting connecting portion 127 (137) of the end of groove 127a (137a).
Particularly, in the step that forms groove, as shown in Figure 19 A and Figure 19 B, groove 127a forms in connecting portion 127 along the direction of utilizing cutting blade 170 cutting connecting portions 127.In addition, in the step that forms the cutting lug boss, the arm 127b from the starting point cutting connecting portion 127 (137) of the end of groove 127a (137a) makes its projection.Therefore, in the step that forms the cutting lug boss, the turning cutting cutting lug boss 127c at the arm 127b of connecting portion 127 makes its projection, to be formed for guiding the V-shaped groove 127k of cutting blade 170.
As shown in Figure 22, can the method that form a plurality of heat-exchanging pieces 122 (132) of waveform shape by the formation method of compression technology as formation continuously will be used.To describe the formation method of pressing compression technology of using after a while in detail.
In the step that forms waveform heat-exchanging piece assembly, as shown in Figure 17, forming the connecting portion 127 (137) of a plurality of heat-exchanging pieces 122 (132) of waveform shape and electrode part 125 (135) continuously is engaged in first and keeps first mating holes 128a (138a) of substrate 128 (138) and the second mating holes 121a of the second maintenance substrate 121 (131), among the 131a, thereby form waveform heat-exchanging piece assembly 120 (130), in described waveform heat-exchanging piece assembly, heat-exchanging piece 122 (132) the integrated first maintenance substrates 128 (138) and second that are installed in keep between the substrate 121 (131).
The step mule that forms the step of waveform heat-exchanging piece assembly comprises that forming first keeps the step of substrate 128 (138) and the step that formation second keeps substrate 121 (131).In the step that forms the first maintenance substrate 128 (138), the first mating holes 128a (138a) that connecting portion 127 (137) passes is formed on and is used for keeping first of connecting portion 127 (137) to keep pedestal 128 (138).In the step that forms the second maintenance substrate 121 (131), the second mating holes 121a (131a) that electrode part 125 (135) can fit into is formed on and is used for keeping second of electrode part 125 (135) to keep pedestal 121 (131).
In the step in conjunction with heat-exchanging piece, as shown in Figure 17, the electrode part 125 (135) of waveform heat-exchanging piece assembly 120 (130) is by the end face of solder bond to the electrode part 116 of combination in conjunction with the step of electrode piece.Here, particularly, the while is in conjunction with a plurality of parts for the treatment of combination of the heat absorption electrode part 125 of waveform heat-exchanging piece assembly 120 and an end face of electrode piece 116.In addition, the while is in conjunction with a plurality of parts for the treatment of combination of the heat sink electrodes portion 135 of waveform heat-exchanging piece assembly 130 and an end face of electrode piece 116.
In cutting step, as shown in Figure 20, towards the relatively move cutting blade 170 etc. of cutter of the cutting lug boss 127c (137c) of connecting portion 127 (137), with cutting connecting portion 127 (137).Particularly, as shown in Figure 20 and Figure 21, in this cutting step, cutting blade 170 relatively moves towards the arm 127b that the mating holes 128a from waveform heat-exchanging piece assembly 120 protrudes, to cut apart the arm 127c of connecting portion 127 along the direction of pending cutting.
Simultaneously, as shown in Figure 21, towards the 127b of the arc portion cutting blade 170 that relatively moves.As a result, the 127c of arc portion thickness Wc with cutting blade 170 on the Width of mating holes 128a is cut and projection.
In the above-mentioned manufacture method of present embodiment, groove 127a (137a) is formed in the connecting portion 127 (137) along the direction of connecting portion 127 (137) to be cut, and, follow the cutting blade 170 that relatively moves towards the cutting lug boss 127c (137c) of connecting portion 127 (137) from the starting point cutting and the protruding connecting portion 127 (137) of the end of groove 127a (137a).
In view of the above, from the starting point cutting connecting portion 127 (137) of the end of groove 127a (137a), and make its projection.Here, can guide the cutting lug boss 127c (137c) of cutting blade 170 can be formed among the groove 127a (137a).As a result, when utilizing cutting blade 170 to cut away connecting portion 127 (137), can accurately guide cutting blade 170 to groove 127a (137a) along cutting lug boss 127c (137c).
Utilize cutting blade 170 can cut away each all has thin portion in connecting portion 127 (137) groove 127a (137a).Therefore, utilize little cutting force can cut away connecting portion 127 (137), and can not produce the cutting dust.
In addition, in the manufacture method of present embodiment, the first mating holes 128a (138a) that connecting portion 127 (137) passes is formed on and is used for keeping first of connecting portion 127 (137) to keep pedestal 128 (138), and then connecting portion 127 (137) passes and treats the maintained first mating holes 128a (138a).Therefore, cutting blade 170 relatively moves towards the arm 127b (137b) of the connecting portion 127 (137) that protrudes from the first mating holes 128a (138a), with direction cutting and the protruding arm 127b (137b) along mating holes 128a (138a) width.
In view of the above, when cutting blade 170 towards arm 127b (137b) when relatively moving, promptly, the V-shaped groove 127k (137k) of connecting portion 127 (137) protrudes when cutting away connecting portion 127 (137) along groove 127a (137a) from the first mating holes 128a (138a), thickness that can cutting blade 70 is cut apart arm 127b (137b), and can make its protrusion.Equally, by cutting and protruding divided 127b (137b), may improve the insulation of cutting behind the connecting portion 127 (137).
And, in the present embodiment, the manufacture method of present embodiment comprises: be used for keeping second of electrode part 125 (135) to keep substrate 121 (131) to form the step of the second mating holes 121a (131a), wherein electrode part 125 (135) can be inserted described second mating holes; Make electrode part 125 (135) fit into the step of the second mating holes 121a (131a); And towards the relatively move step of cutting blade 170 of the cutting lug boss 127c (137c) of connecting portion 127 (137).
According to described method, electrode part 125 (135) is engaged among the second mating holes 121a (131a), then, utilizes cutting blade 170 to cut away connecting portion 127 (137).Therefore, even the reaction force of the cutting force of cutting blade 170 is imposed on connecting portion 127 (137), active force is also spreadable to the second maintenance substrate 121 (131), and wherein the electrode part 125 (135) that connects via heat exchange department 126 (136) is engaged in the described second maintenance substrate.
Therefore, may utilize little cutting force to cut away connecting portion 127 (137), and can not produce the cutting dust, and can alleviate in cutting process influence more frangible thermoelectric device 112,113.
In the manufacture method of present embodiment, by connecting portion 127 (137) is inserted the first mating holes 128a (138a), and electrode part 125 (135) is engaged among the second mating holes 121a (131a), form waveform heat-exchanging piece assembly 120 (130).And, form waveform heat-exchanging piece assembly 120 (130), cutting blade 170 is relatively moved towards the arm 127b (137b) of connecting portion 127 (137).
Therefore, be bonded to thermoelectric device 112 (113) before via electrode piece 116, that is, under the state that forms waveform heat-exchanging piece assembly 120 (130), can cut away connecting portion 127 (137) in electrode part 125 (135).As a result, when cutting, cutting force does not exert an influence to thermoelectric device more frangible in cutting process.
The manufacture method of present embodiment may further comprise the steps: form heat-exchanging piece; Form groove; Form the cutting lug boss.In the step that forms heat-exchanging piece, utilize band shape conduction fin material 101, make a plurality of heat-exchanging pieces 122 (132) form waveform shape continuously, each of wherein said a plurality of heat-exchanging pieces all comprises heat exchange department 126 (136), electrode part 125 (135), heat exchange department 126 (136) and connecting portion 127 (137) successively.In the step that forms groove, groove 127a (137a) goes up formation along the direction of connecting portion 127 (137) to be cut at connecting portion 127 (137).And, in the step that forms the cutting lug boss, from the starting point cutting connecting portion 127 (137) of the end of groove 127a (137a), and make its projection, thereby form cutting lug boss 127c (137c).
The same manner forms waveform shape continuously by making a plurality of heat-exchanging pieces 122,132, and by making them be bonded to an end face of electrode piece 116, may significantly reduce forming and installing heat-exchanging piece 122,132 needed step numbers.As a result, may realize very high productivity ratio.
In addition, the manufacture method of present embodiment may further comprise the steps: form first and keep substrate, wherein the first mating holes 128a (138a) is being used for keeping first of connecting portion 127 (137) to keep substrate 128 (138) to form, and connecting portion 127 (137) can insert described first mating holes; Form second and keep substrate, wherein the second mating holes 121a (131a) is being used for keeping second of electrode part 125 (135) to keep substrate 121 (131) to form, and connecting portion 127 (137) can insert described second mating holes; And form waveform heat-exchanging piece assembly, and wherein connecting portion 127 (137) is engaged among the first mating holes 128a (138a), and electrode part 125 (135) is engaged among the second mating holes 128a (138a), to form waveform heat-exchanging piece assembly 120 (130).
In view of the above, even waveform heat-exchanging piece assembly 120 (130) formed before or after electrode part 125 (135) is bonded to thermoelectric device 112 (113) via electrode piece 116, when cutting connecting portion 127 (137) in order to ensure the insulation between the adjacent heat-exchanging piece 122 (132), the reaction force to connecting portion 127 (137) that cutting force causes can be absorbed by waveform heat-exchanging piece assembly 120 (130).As a result, may limit or prevent the influence of cutting force to more frangible thermoelectric device.
And the manufacture method of present embodiment comprises cutting step, and in described cutting step, cutting blade 170 moves towards the cutting lug boss 127c (137c) of connecting portion 127 (137).
When cutting connecting portion 127 (137) when guaranteeing the insulation between the adjacent heat-exchanging piece 122 (132), such cutting step is provided, wherein, cutting blade 170 moves towards the cutting lug boss 127c (137c) of connecting portion 127 (137).As a result, may utilize little cutting force to cut apart connecting portion 127 (137), and can not produce the cutting dust.
And in the manufacture method of present embodiment, cutting step is constructed so that the arm 127b (137b) by relatively move cutting blade 170 cuttings and protruding connecting portion 127 (137).
In view of the above, by cutting and the arm 127b (137b) cut apart of projection, may improve the insulation behind the cutting connecting portion 127 (137).
Then, will the method that be used to form corrugated fin be described referring to Figure 22.As shown in Figure 22, by pressing pressure zone shape fin material 101, make the heat-exchanging piece 122 (132) of a plurality of continuous connections form waveform shape continuously, each of wherein said a plurality of heat-exchanging pieces all comprises heat exchange department 126 (136), electrode part 125 (135), heat exchange department 126 (136) and connecting portion 127 (137) successively.
As shown in Figure 22, the method that is used to form corrugated fin may further comprise the steps: form groove, its further groove 127a (137a) forms in connecting portion 127 (137) along the direction of connecting portion 127 (137) to be cut; Form waveform shape,,, thereby become waveform shape with formation crest and trough wherein with the part place bending of shape fin material 101 between electrode part 125 (135), heat exchange department 126 (136) and connecting portion 127 (137); Form transom window between the crest of waveform shape and trough, thus, transom window is cut in heat exchange department 126 (136) and projection; And the cutting lug boss 127c (137c) that is used to guide cutting blade 170 from the starting point cutting and the projection of the end of groove 127a (137a).
The same manner, this method can realize very high productivity ratio as the following method that is used for thermoelectric converter that is used to form, wherein in described method, P type thermoelectric device 112 and N type thermoelectric device 113 are arranged alternately on the insulated substrate 111, and the heat-exchanging piece 122,132 that is bonded to electrode piece 116 is electrically insulated from each other, and wherein said electrode piece 116 is bonded to adjacent P type thermoelectric device 112 and a plurality of N type thermoelectric device 113.
In the present embodiment, in forming the step of groove, formation groove 125a (135a) in the electrode part 125 (135) of par and the bend between the heat exchange department 126 (136) preferably.Even when heat-exchanging piece 122 (132) is made by the fin material of thickness big (for example, being about 0.3mm in the present embodiment), can be easy to a plurality of heat-exchanging pieces 122 (132) are formed waveform shape continuously.As a result, this method can realize very high productivity ratio as the method that forms thicker corrugated fin.
Although in above-mentioned the 3rd embodiment, will use formation method to be described, also can adopt the formation method of use roller processing as shown in Figure 23 as the manufacture method that is used to make a plurality of heat-exchanging pieces 122,132 form waveform shape continuously by compression technology.In Figure 23, Reference numeral 286 expression wave inception rollers, Reference numeral 285 expression is used to cut with protruding transom window and forms the knurling roller of groove, and the V-shaped groove of Reference numeral 287 expressions cutting and projection cutting lug boss 127a (137a) in order to form V-shaped groove 127k (137k) forms roller.Here, wave inception roller 286, knurling roller 285 and V-shaped groove form the manufacturing equipment that roller 287 is configured for forming continuously by roller processing a plurality of heat-exchanging pieces 122,132.
In the step of wave inception step and formation transom window, utilize wave inception roller 286 and knurling roller 285 to make 101 one-tenth waveforms of band shape fin material, and the transom window of cutting and protruding heat exchange department 126 (136).Then, the direction along connecting portion 127 (137) to be cut forms groove 127a (137a) in connecting portion 127 (137).After finishing the wave inception step and forming the step of transom window, in the step that forms the cutting lug boss, form roller 287 cuttings and projection cutting lug boss 127c (137c) by V-shaped groove, so that form V-shaped groove 127k (137k) at the end of the groove 127a of connecting portion 127 (137) (137a).
And utilize this structure, also can obtain the effect identical with the 3rd embodiment.In addition, stand roller processing, can make a plurality of heat-exchanging pieces 122 (132) form waveform shape continuously, that is, become so-called corrugated fin shape by making band shape fin material 101.As a result, may realize very high productivity ratio.
Above-mentioned the 3rd embodiment uses and comprises that the step that forms waveform heat-exchanging piece assembly 120 (130), the electrode part 125 (135) that makes waveform heat-exchanging piece assembly 120 (130) are bonded to the manufacturing process of step of the arm 127b (137b) of the step of electrode piece 116 of thermoelectric device substrate 110 and cutting connecting portion 127 (137).Yet, also recommend use to comprise the step of formation waveform heat-exchanging piece assembly 120 (130) and the manufacturing process of the step of the arm 127b (137b) of cutting connecting portion 127 (137).
In view of the above, even in any manufacturing process, also may limit or prevent because the influence that the cutting force during cutting connecting portion 127 (137) causes more frangible thermoelectric device.Under the situation that forms waveform heat-exchanging piece assembly 120 (130) back cutting connecting portions 127 (137), may prevent because the influence that cutting force causes to more frangible thermoelectric device.
In above-mentioned the 3rd embodiment, in bend, be formed on the groove 127a (137a) of the position formation of cutting connecting portion 127 (137), wherein in described bend, the arm 127b (137b) of connecting portion 127 (137) is along the direction bending of connecting portion 127 (137) to be cut.Yet groove 127a (137a) not necessarily must form in the bend of crooked connecting portion 127 (137), and groove 127a (137a) also can form outside the bend of crooked connecting portion 127 (137).
In above-mentioned the 3rd embodiment, be used to guide the V-shaped groove 127k (137k) of cutting blade 170 to form at the end of groove 127a (137a), wherein said end is positioned at and makes on the side that cutting blade 170 relatively moves towards connecting portion 127 (137).Yet V-shaped groove 127k (137k) not necessarily must be formed on the end of groove 127a (137a) along the direction of groove 127a to be cut (137a), also can form along the direction of groove 127a to be cut (137a) to be formed on the two ends of groove 127a (137a).
In this case, cutting blade 170 and V-shaped groove 127k (137k) are arranged on the two ends of groove 127a (137a).Therefore, though at cutting blade 170 when any end of groove 127a (137a) moves, cutting blade 170 also can cut connecting portion 127 (137).Therefore, keep substrate 128 (138) and second to keep substrate 121 (131) when forming waveform heat-exchanging piece assembly 120 (130) when heat-exchanging piece 122 (132) is installed in first, also needn't consider formation V-shaped groove 127k (137k) on that side of heat-exchanging piece 122 (132).As a result, may improve the productivity ratio of installment work.
Although described the present invention referring to the preferred embodiments of the present invention, it should be understood that, the invention is not restricted to preferred embodiment and structure.The present invention is intended to cover various modifications and equivalent arrangements.In addition, although each element of preferred embodiment is shown, comprise preferred other combination more, a still less or only element and structure also within the spirit and scope of the present invention with multiple combination and configuration.
Claims (20)
1. thermoelectric converter comprises:
The thermoelectric device substrate;
One group of thermoelectric device comprises a plurality of P type thermoelectric devices and a plurality of N type thermoelectric device of arranged alternate on the thermoelectric device substrate;
Electrode piece is made by electric conducting material, is used to be electrically connected P type thermoelectric device and the N type thermoelectric device on the thermoelectric device substrate disposed adjacent one another; And
Heat-exchanging piece, comprise be connected to electrode piece with the transmission heat to the electrode part here and the heat exchange department that is used to absorb and distributes the heat that transmits from electrode part, wherein:
Adjacent P type is one another in series via electrode piece with N type thermoelectric device and is connected;
In the electrode part and heat exchange department in heat-exchanging piece, a plurality of at least electrode part and a plurality of heat exchange department form waveform shape together continuously, so that a plurality of electrode piece is connected to each other along described at least one group of thermoelectric device; And
Adjacent heat-exchanging piece is set to be electrically insulated from each other.
2. thermoelectric converter according to claim 1, wherein:
In described heat-exchanging piece, a plurality of adjacent heat exchange departments connect into waveform shape continuously via connecting portion, and by the cutting connecting portion adjacent heat exchange department are electrically insulated from each other.
3. thermoelectric converter according to claim 2,
Wherein, adjacent heat exchange department is electrically insulated from each other by using the connecting portion of any one the cutting heat-exchanging piece in laser, cutting machine, cutting clamper, perforating press and the etching machine.
4. thermoelectric converter according to claim 2 further comprises the fixture that has writing board shape and made by insulating material,
The fixing end of heat exchange department of fixture wherein, and from cutting away connecting portion here.
5. thermoelectric converter according to claim 1 further comprises the fixture that has writing board shape and made by insulating material,
Wherein the electrode part of heat-exchanging piece fits into a plurality of mating holess that form at certain intervals in insulated substrate.
6. according to arbitrary described thermoelectric converter in the claim 1 to 5,
Wherein a plurality of heat exchange departments are set to waveform shape continuously via the connecting portion that each all has curved portions, by the cutting connecting portion adjacent heat exchange department is electrically insulated from each other, and the turning of the curved portions of the connecting portion of cutting have the cutting lug boss.
7. thermoelectric converter according to claim 6 further comprises:
First keeps substrate, has first mating holes, and wherein connecting portion inserts described first mating holes; And
Second keeps substrate, has second mating holes, and wherein electrode part is inserted described second mating holes;
Wherein connecting portion inserts first mating holes, and electrode part fits into second mating holes, to form waveform heat-exchanging piece assembly.
8. thermoelectric converter according to claim 6,
Wherein the curved portions of Qie Ge connecting portion is cut and projection, so that have the width W f greater than the width W a of heat exchange department.
9. method of making thermoelectric converter may further comprise the steps:
Form a plurality of heat-exchanging pieces, each heat-exchanging piece all comprises successively by using electric conducting material to form first heat exchange department, electrode part, second heat exchange department and the connecting portion of waveform shape together continuously;
Form the thermoelectric device substrate, on described substrate, a plurality of P type thermoelectric devices become lattice pattern with a plurality of N type thermoelectric devices cardinal principle arranged alternate, to arrange one group of thermoelectric device;
Electrode piece is placed on the P type thermoelectric device and the end face of N type thermoelectric device on the thermoelectric device substrate disposed adjacent one another, then makes electrode piece be attached to P type thermoelectric device, make electrode piece be attached to N type thermoelectric device;
Electrode part along described at least one group of thermoelectric device is placed a plurality of heat-exchanging pieces of many rows then makes electrode piece be attached to electrode part, wherein forms on an end face of electrode piece in the step of heat-exchanging piece, and described heat-exchanging piece forms waveform shape; And
The connecting portion that cutting forms between the adjacent heat exchange department of a plurality of heat-exchanging pieces makes heat-exchanging piece be electrically insulated from each other thus, and wherein in the step in conjunction with heat-exchanging piece, the electrode part of described a plurality of heat-exchanging pieces is bonded to electrode piece respectively.
10. the method for manufacturing thermoelectric converter according to claim 9, further be included in and use the fixedly step of the end of heat exchange department of the fixture that has writing board shape and made by insulating material behind the cutting step, wherein connecting portion is cut away from described end.
11. the method for manufacturing thermoelectric converter according to claim 9, further be included in and form heat-exchanging piece interim installation step afterwards, wherein, electrode part is engaged in or is pressed in the mating holes, described mating holes is formed in the insulated substrate at certain intervals, described insulated substrate is configured as flat board, and is made by insulating material.
12. the method for manufacturing thermoelectric converter according to claim 9, wherein in the step that forms heat-exchanging piece, a plurality of heat-exchanging pieces are processed to form by roller and are waveform shape.
13. the method for manufacturing thermoelectric converter according to claim 9 wherein in cutting step, is used any one the cutting connecting portion in laser, cutting machine, cutting clamper, perforating press and the etching machine.
14. according to the method for arbitrary described manufacturing thermoelectric converter in the claim 9 to 13,
Wherein the cutting step direction that is included in connecting portion upper edge connecting portion to be cut forms the step of groove and makes its projection form the step of cutting lug boss thus from the starting point cutting connecting portion of the end of connecting portion.
15. the method for manufacturing thermoelectric converter according to claim 14,
Wherein after the step that forms the cutting lug boss, towards the cutting convex side of the connecting portion cutting blade that relatively moves.
16. the method for manufacturing thermoelectric converter according to claim 14, wherein:
In the step that forms the cutting lug boss, first mating holes that is used for inserting therein connecting portion is being used to keep first of connecting portion to keep substrate to form;
Connecting portion inserts first mating holes, remains on first thus and keeps in the substrate; And
Cutting blade relatively moves towards the curved portions from the outstanding connecting portion of first mating holes, cuts curved portions thus and make its projection on the Width of first mating holes.
17. the method for manufacturing thermoelectric converter according to claim 16 further comprises:
Second keep substrate to be formed for cooperating second mating holes of electrode part what be used for keeping electrode part,
Wherein after electrode part fitted into second mating holes, cutting blade relatively moved towards the cutting convex side of connecting portion.
18. the method for manufacturing thermoelectric converter according to claim 14 further may further comprise the steps:
First keep substrate to be formed for inserting therein first mating holes of connecting portion what be used for keeping connecting portion,
Second keep substrate to be formed for cooperating second mating holes of electrode part what be used for keeping electrode part,
Connecting portion is inserted in first mating holes, make electrode part fit into second mating holes, so that form waveform heat-exchanging piece assembly.
19. the method for manufacturing thermoelectric converter according to claim 15,
Wherein in cutting step, cutting blade relatively moves, and separates the curved portions of connecting portion thus and makes the curved portions projection.
20. a manufacturing is used to form the method for the corrugated fin of a plurality of heat-exchanging pieces, wherein each heat-exchanging piece all comprises heat exchange department, electrode part, heat exchange department and connecting portion successively, described heat exchange department, electrode part, heat exchange department and connecting portion are configured as band shape and the fin material of being made by electric conducting material, form waveform shape continuously together by use, said method comprising the steps of:
Direction at connecting portion upper edge connecting portion to be cut forms groove;
Make the part place bending of fin material between electrode part, heat exchange department and connecting portion, so that they form waveform shape;
Make the transom window in the heat exchange department between crest and the trough form waveform shape; And
Form the cutting lug boss, described cutting lug boss is used for the starting point guiding cutting blade from the end of groove.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004347101A JP2006156818A (en) | 2004-11-30 | 2004-11-30 | Thermoelectric conversion device and its manufacturing method |
| JP2004347101 | 2004-11-30 | ||
| JP2004-347101 | 2004-11-30 | ||
| JP2005224630 | 2005-08-02 | ||
| JP2005-224630 | 2005-08-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1783527A CN1783527A (en) | 2006-06-07 |
| CN100420054C true CN100420054C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101290040A Expired - Fee Related CN100420054C (en) | 2004-11-30 | 2005-11-29 | Thermoelectric transducer and method of manufacturing same and method for forming corrugated fin used for the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006156818A (en) |
| CN (1) | CN100420054C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403285A (en) * | 2010-09-07 | 2012-04-04 | 株式会社丰田自动织机 | Semiconductor unit |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8796533B2 (en) * | 2006-06-14 | 2014-08-05 | Universal Entertainment Corporation | Thermoelectric conversion module and connector for thermoelectric conversion elements |
| CN101515002B (en) * | 2009-03-18 | 2011-01-05 | 中国计量科学研究院 | Thin film type thermoelectric converter and a measuring method |
| US9101947B2 (en) * | 2009-03-26 | 2015-08-11 | Panasonic Intellectual Property Management Co., Ltd. | Electrostatically atomizing device and method of manufacturing the same |
| CN101825409B (en) * | 2010-04-06 | 2012-02-15 | 华南理工大学 | Plate-type heat exchanger with power generation structure |
| WO2012137446A1 (en) * | 2011-04-06 | 2012-10-11 | Panasonic Corporation | Thermoelectric conversion element module and method of manufacturing the same |
| DE102015213295A1 (en) | 2015-07-15 | 2017-01-19 | Mahle International Gmbh | Thermoelectric heat exchanger |
| TWI570972B (en) * | 2016-01-20 | 2017-02-11 | 財團法人工業技術研究院 | Thermoelectric conversion device and thermoelectric converter |
| WO2022019673A1 (en) * | 2020-07-24 | 2022-01-27 | 엘지이노텍 주식회사 | Thermoelectric module |
| CN113691165B (en) * | 2021-09-17 | 2023-11-07 | 东北大学 | Industrial integrated thermoelectric power generation device |
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| JPH0555639A (en) * | 1991-08-22 | 1993-03-05 | Matsushita Electric Ind Co Ltd | Thermoelectric device |
| JPH08229615A (en) * | 1994-12-26 | 1996-09-10 | Nippondenso Co Ltd | Forming roller for corrugated fin and method thereof |
| JP2003124531A (en) * | 2001-10-11 | 2003-04-25 | Komatsu Ltd | Thermoelectric module |
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- 2004-11-30 JP JP2004347101A patent/JP2006156818A/en not_active Withdrawn
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0555639A (en) * | 1991-08-22 | 1993-03-05 | Matsushita Electric Ind Co Ltd | Thermoelectric device |
| JPH08229615A (en) * | 1994-12-26 | 1996-09-10 | Nippondenso Co Ltd | Forming roller for corrugated fin and method thereof |
| JP2003124531A (en) * | 2001-10-11 | 2003-04-25 | Komatsu Ltd | Thermoelectric module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102403285A (en) * | 2010-09-07 | 2012-04-04 | 株式会社丰田自动织机 | Semiconductor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1783527A (en) | 2006-06-07 |
| JP2006156818A (en) | 2006-06-15 |
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