CN1256010C - Electric parts device - Google Patents
Electric parts device Download PDFInfo
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- CN1256010C CN1256010C CN 03119886 CN03119886A CN1256010C CN 1256010 C CN1256010 C CN 1256010C CN 03119886 CN03119886 CN 03119886 CN 03119886 A CN03119886 A CN 03119886A CN 1256010 C CN1256010 C CN 1256010C
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
To provide an electric component device contributing to cost down by a method by which a working man-hour is reduced by improving cooling efficiency with respect to a plurality of semiconductor elements and simplifying the assembling structure of the semiconductor element, a heat radiating body and a printed board. The electric component device is provided with the printed board 3, semiconductor elements 2 mounted on the printed board having a large heating value or a rectifying diode block 2A, for example, or switching elements or transistors 2B, for example, and a heat sink 1 for receiving the heat generated by the semiconductor elements to radiate the heat. The semiconductor elements are interposed between the printed board and the heat sink.
Description
Technical field
The present invention relates to for example possess the electric component device of air-conditioning equipment outdoor unit.
Background technology
For example, at the outdoor unit of air-conditioning equipment, dispose kind of refrigeration cycle component parts and forced draft fans such as compressor, outdoor heat converter, cross valve, expansion valve.Have again, dispose compressor, forced draft fan motor, and control cross valve, expansion valve drive control electric component with solenoid (solenoid).
These electric components that are used for controlling all are configured in electric part box, and its part is opposed on the air-supply path of above-mentioned forced draft fan, are arranged to cool off above-mentioned electric component.
In addition, the FREQUENCY CONTROL of compressor is generally controlled as kind of refrigeration cycle, for this reason, except that CPU, capacitor, transformer etc., also need to have a plurality of electric components such as transistor (being called as huge transistor) as the switch element of inverter (inverter), rectifier diode module.
In these electric components, particularly, also many in the produced simultaneously heat of switch motion as the transistor of above-mentioned switch element and rectifier diode module (below be referred to as semiconductor device).
If simply these semiconductor device are accommodated in the airtight electric part box, then the temperature inside the box is high unusually, and much less self also can bring hot harmful effect to other electric components that is used to control.So, generally above-mentioned semiconductor device is installed on the heat sink that is called as fin, it is dispelled the heat efficiently.
Specifically, semiconductor device is installed in structure on the heat sink, is to use mounting screw that each semiconductor device is installed on the heat sink.Perhaps, use the dedicated fixed plate that semiconductor device is installed on the heat sink.
But semiconductor device needs a plurality of, when using a plurality of mounting screws that each semiconductor device is installed, needs a plurality of mounting screws, exists to make the shortcoming that number of components increases, operating procedure increases.
If use special-purpose fixed head, then only use the mounting screw that lacks than the quantity of the semiconductor device that should install get final product, still when semiconductor device quantity be 3 when above, then can not absorb dimensional tolerance.Therefore, be restricted to and mostly be 2 semiconductor device most, so versatility is poor.
Summary of the invention
The present invention is conceived to the problems referred to above and proposes, its purpose is to provide a kind of electric component device, can improve the cooling effectiveness to a plurality of semiconductor device, can simplify the package assembly of semiconductor device, heat sink and printed base plate, can reduce operating procedure, help to reduce cost.
For achieving the above object, electric component device of the present invention, has printed base plate, be installed in a plurality of semiconductor device on this printed base plate, and the heat sink that bears the hot of above-mentioned a plurality of semiconductor device generations and dispel the heat, it is characterized in that: above-mentioned a plurality of semiconductor device are positioned across the distance piece that is formed by elastomeric material and remain on the above-mentioned printed base plate, above-mentioned heat sink and above-mentioned each semiconductor device driving fit, and utilize to insert logical above-mentioned distance piece installing hole erecting tools and be connected with above-mentioned printed base plate with above-mentioned distance piece across above-mentioned each semiconductor device, have quoit in the above-mentioned installing hole of above-mentioned distance piece, this quoit limits the distortion of above-mentioned distance piece when erecting tools connects.
Described electric component device is characterized in that: above-mentioned heat sink has bearing of above-mentioned printed base plate bending of restriction and uses teat.
Described electric component device is characterized in that: above-mentioned distance piece has makes the separation teat that is separated from each other, insulate from the outstanding a plurality of pins of above-mentioned semiconductor device.
Described electric component device is characterized in that: above-mentioned heat sink has from a side of above-mentioned printed base plate to the multi-disc radiating fin that tilts with the solder side rightabout.
Described electric component device is characterized in that: above-mentioned printed base plate is formed by glass synthetic material (glass composite material).
By adopting aforesaid device of dealing with problems, can simplify the package assembly of semiconductor device, heat sink and printed base plate, reduce operating procedure, help to reduce cost.
Description of drawings
Fig. 1 is the exploded perspective view of an embodiment of electric component device of the present invention.
Fig. 2 attempts for the side of the embodiment of Fig. 1.
Fig. 3 is the stereogram of the embodiment of Fig. 1.
Fig. 4 is the exploded view and the assembly drawing at main position of the embodiment of Fig. 1.
Fig. 5 be take in Fig. 1 embodiment electric part box and have the part shortcoming stereogram of outdoor unit of the air-conditioning equipment of this electric part box.
Fig. 6 is welding sequence figure and the internal state figure of the embodiment of Fig. 1.
Fig. 7 is the electrical circuit diagram of outdoor unit of air-conditioning equipment that has used the embodiment of Fig. 1.
Fig. 8 is other electrical circuit diagrams of outdoor unit of air-conditioning equipment that used the embodiment of Fig. 1.
Fig. 9 attempts for the side of other embodiment of electric component device of the present invention.Exploded perspective view for an embodiment of electric component device of the present invention.
Figure 10 be used for electric component device of the present invention separator an example vertical view and attempt with cuing open of other positions.
Figure 11 attempts for another routine vertical view of the separator that uses in electric component device of the present invention and partial cutaway thereof and has used the part of the electric component device of this separator to enlarge to cut open and attempted.
Embodiment
Below, embodiments of the invention are described with reference to the accompanying drawings, this electric component device is accommodated in the electric part box of the outdoor unit of air-conditioning equipment for example.
Fig. 1 is for decomposing the electric component device and omitting local stereogram, Fig. 2 attempts for the side of the electric component device of assembled state, Fig. 3 is the stereogram of the electric component device of assembled state, Fig. 4 is the figure at the main position of explanation electric component device, and Fig. 5 is the stereogram that has omitted the air-conditioning equipment outdoor unit part with electric component device.
Constituting of above-mentioned electric component device has: the printed base plate 3 that is formed by the glass synthetic material, be installed in a plurality of semiconductor device 2 on the printed base plate 3 and bear the heat that these semiconductor device 2 distribute and the heat sink (hereinafter referred to as fin) 1 that dispels the heat.
2 of above-mentioned semiconductor device are refered in particular to and are produced the big semiconductor device of heat, install along a side of printed base plate 3.And, at the remaining space of printed base plate 3,, the electric component that CPU, capacitor, transformer, rectifier etc. are used to control is housed also though do not illustrate especially.
Here, the semiconductor device 2 that above-mentioned generation heat is big by 1 rectifier diode module 2A and 6 for example switch element 2B such as transistor constitute.Add up to 7 semiconductor device 2 (, below being referred to as 2), on the basis that keeps that is positioned by distance piece 4 described later, between printed base plate 3 and fin 1 though promptly be 2A, 2B.
At the sidepiece of the installation semiconductor device 2 of above-mentioned printed base plate 3, and in its left and right sides, be provided with respectively installing hole 5, and near these installing holes 5 location hole 6 of position.
Above-mentioned distance piece 4 possesses insulation characterisitic, is for example formed by synthetic resin, overlooks to be rectangular slab, is provided with in the above to be used for semiconductor device 2 is remained on a plurality of installation recess 4a of position separately.Each installs the kind of recess 4a according to the semiconductor device 2 of location maintenance, and the shape structure is different.
In the left and right sides of this distance piece 4, be provided with installing hole 7.These installing holes 7 are configured to, and are identical with the aperture and the spacing of the installing hole 5 that is located at above-mentioned printed base plate 3 left and right sides.
Near position each installing hole 7, the outstanding alignment pin 8a that is provided with on distance piece 4 are arranged again.As described below, the outstanding locating detent 16 that is provided with below distance piece 4.In addition, this locating detent 16 and dependency structure thereof are shown specifically in Fig. 4, and omit in Fig. 2.
The overhang that top alignment pin 8a possesses the thickness of slab degree of above-mentioned fin 1 gets final product.Following locating detent 16 forms the overhang of the thickness of slab that is no less than above-mentioned printed base plate 3 at least.In addition, locating detent 16 be set as can be chimeric with the location hole 6 of printed base plate 3 diameter, same spacing.
Above-mentioned fin 1 is formed by the aluminium of excellent thermal conductivity, forms by so-called extrusion molding.Substrate 1a, radiating fin 1b, install with flange 1c and bear and be configured to one with teat 1d.
Above-mentioned radiating fin 1b is provided with many pieces, the outstanding integratedly one side that is arranged on aforesaid substrate 1a.Have certain intervals mutually at above-below direction, and it is flatly outstanding to traverse left and right sides Width respectively.The overhang of radiating fin 1b is at the many pieces of weak points on top, the many pieces of length than top of bottom.
Above-mentioned installation on the position of this lower edge certain distance, is traversed outstanding setting of left and right sides Width of substrate 1a with the another side side of flange 1c at substrate 1a.The size of the fore-and-aft direction that this overhang is vertical with the left and right sides Width of above-mentioned distance piece 4 much at one.
In the two side portions of installing with the left and right sides Width of flange 1c, location hole 9a and screw hole 9b are provided as approaching state.The aperture of this a pair of location hole 9a and spacing, the diameter and the spacing that are arranged on the alignment pin 8a above the above-mentioned distance piece 4 are identical with giving prominence to.In addition, the aperture of screw hole 9b and spacing are identical with the aperture and the spacing of installing hole 7,5 on being arranged on above-mentioned distance piece 4 and printed base plate 3.
With above-mentioned installation with the identical one side of flange 1c, and above-mentioned bearing be set use teat 1d along lower edge is outstanding.Its overhang is minimum to get final product, in fact parallel with flange 1c with installation.
When assembling electrical part product device by component parts as above, at first, relative 3 pairs of printed base plates are stated distance piece 4 and are positioned.Then, the installation protuberance 4a that each semiconductor device 2 is installed in distance piece 4 goes up the location maintenance.
That is to say that will be below distance piece 4 outstanding locating detent 16 embeds in the location hole 6 of printed base plate 3, in this state, the installing hole 5 of printed base plate 3 is communicated with the installing hole 7 of distance piece 4, so constitute the location division by locating detent 16 and location hole 6.
Then, position above distance piece 4 makes the installation flange 1c subtend of fin 1, and makes alignment pin 8a outstanding on distance piece 4 embed the location hole 9a that installs with flange 1c.
In this state, because the installing hole 5 of printed base plate 3 and the installing hole 7 of distance piece 4 be communicated with the screw hole 9b of above-mentioned installation with flange 1c, so constitute the location division by alignment pin 8a and location hole 9a.
Side below above-mentioned printed base plate 3 is prepared the mounting screw 10 as erecting tools, and inserts in the installing hole 5.In addition, mounting screw 10 is inserted among the screw hole 9b of mounting flange 1c and connects through installing hole 7 spirals of distance piece 4.
Therefore, use mounting screw 10, keep distance piece 4, the printed base plate 3 of semiconductor device 2 to be assembled into one fin 1, location.Above-mentioned semiconductor device 2 is fixed between printed base plate 3 and the fin 1, and is in the state with fin 1 driving fit.
As mentioned above, when assembling electric component device, mounting screw 10, printed base plate 3 and fin 1 are installed not only, are also had concurrently and make the function of semiconductor device 2 driving fits on fin 1, so do not need to prepare again in addition mounting screw.
In addition, owing to have the distance piece 4 that the location keeps above-mentioned semiconductor device 2,, can improve the reliability of goods so the position of semiconductor device 2 is not offset.
Have again, keep fin 1 certain, possess the location division that constitutes by installing hole 5, location hole 6,9a and alignment pin 8a, 8b, so can obtain high assembly precision by simple formation with the position relation of the distance piece 4 that keeps printed base plate 3 and semiconductor device 2 for making.
As shown in Figure 5, above-mentioned electric component device is accommodated in the electric part box 31, and this electric part box 31 is configured in the outdoor unit 30 of air-conditioning equipment.Specifically, a side of electric part box 31 is provided with opening, and the substrate 1a that constitutes the above-mentioned fin 1 of electric component device embeds in this opening.
In addition, the radiating fin 1b of fin 1 is outside outstanding from a side direction of electric part box 31, and printed base plate 3 and semiconductor device 2 and distance piece 4 etc. all are housed in the electric part box 31.
Near position above-mentioned electric part box 31 disposes forced draft fan 32.This forced draft fan 32 makes outdoor heat converter 33 circulations by sucking extraneous air, again to outdoor unit 30 outside discharges.
Above-mentioned radiating fin 1b is positioned at the air-supply path of above-mentioned forced draft fan 32, dispels the heat expeditiously.And, on electric part box 31, also be provided with the hole that is blown into cooling air, stably carry out inner cooling.
On the other hand, make from each semiconductor device 2 outstanding pin one 5a, 15b and insert the hole that is located on the printed base plate 3, outstanding from the inboard.In addition, as described later, pin one 5a, 15b are welded on the printed base plate 3.
Because above-mentioned distance piece 4 possesses insulating properties, can with the position of distance piece 4 driving fits of printed base plate 3 on form wiring figure (Copper Foil printed pattern), can effectively utilize the area of printed base plate 3.In other words, above-mentioned distance piece 4 needs selection to possess the material of the insulating properties of goods requirement.
Functional for the driving fit that makes above-mentioned semiconductor device and fin 1, it is effective having the driving fit parts between them.Above-mentioned driving fit parts for example can use the silicon of crystalline state, as the silicon chip of insulating trip or mica sheet etc.
Next, illustrate that relevant pin one 5a, 15b with semiconductor device 2 is welded on the operation on the printed base plate.
Fig. 6 (A) is the figure of explanation welding sequence.
In solder bath 20, resident the scolding tin 21 that is heated fusing, the electric component device that the unshowned supporting mechanism of figure is supported, the height that maintenance makes the bottom surface of printed base plate 3 contact with the liquid level of jet solder, on solder bath 20, pass through, when pull-up electric component device, scolding tin 21 is attached to the bottom surface of printed base plate 3 then.That is to say that pin one 5a, the 15b of semiconductor device 2 are welded on the printed base plate 3.
And the length and width size (area) of printed base plate 3 is compared greatly with the area of flange 1c with the installation of fin 1 sometimes, and the total weight that is installed in the electronic unit on the printed base plate 3 sometimes is very big.
Fig. 6 (B) is the figure that the state of the electric component device when having substrate 1a and radiating fin 1b and the fin 1Z that constitutes with flange 1c being installed is described.
About the installation of above-mentioned fin 1Z uses flange 1c and distance piece without any variation.But printed base plate 3, its both sides only are installed on distance piece 4 and the fin 1Z by mounting screw 10.
If weld in this state, then because the deadweight that thermal expansion that Yin Gaowen causes and thermal softening cause, printed base plate 3 is slowly crooked from both sides, and the central portion of Width is crooked to greatest extent.
At this, as a kind of means that are used to prevent above-mentioned printed base plate 3 bendings, also can on above-mentioned printed base plate 3, embed the unshowned reinforcing apparatus of figure, weld printed base plate 3 then.
But, though reinforce the distortion that apparatus can stably prevent printed base plate 3, need to make new reinforcing apparatus, and have to install, be trouble.
At this, bear along the lower edge setting of fin 1 and to use teat 1d.Under assembled state, bear with teat 1d and between installing with flange 1c, printed base plate 3 and distance piece 4 are arranged above-mentioned, and be positioned and remain on semiconductor device 2 on the distance piece 4.
Owing to be such structure, so, above-mentionedly bear the flexural deformation that can stably prevent above-mentioned printed base plate 3 with teat 1d, can strengthen the intensity of printed base plate 3.Do not need to install aforesaid reinforcing apparatus, so help to reduce cost.
In addition, the stress that causes also can utilize one piece of temporary fixed screw in order to relax the thermal expansion that when welding produce on printed base plate 3, welds after being temporarily fixed at the middle body of printed base plate 3 on the fin 1.
That is to say that when welding, even thermal expansion takes place printed base plate 3, printed base plate 3 is a fulcrum with temporary fixed standing part with screw, only stretch,, then return original state after printed base plate 3 coolings if welding finishes in surface direction.The result is to prevent and to weld printed base plate 3 simultaneous thermal expansion distortion.
In the FREQUENCY CONTROL of above-mentioned compressor, use above-mentioned electric component device, control as the kind of refrigeration cycle in the air-conditioning equipment.Below, be elaborated.
Fig. 7 is the electrical circuit diagram of an embodiment, and Fig. 8 is the electrical circuit diagram of another embodiment.The semiconductor device that semiconductor device that respectively is used and front illustrated is identical, but for convenience of explanation, subsidiary distinct symbols describes.
In Fig. 7, full-wave rectifying circuit 102 is connected with commercial ac power source 101.This full-wave rectifying circuit 102 is made up of rectifier diode module 104 and electric capacity 105, and this rectifier diode module 104 is made up of 4 diodes 103.
In addition, switching circuit 106 is connected with the output of above-mentioned full-wave rectifying circuit 102.This switching circuit 106 is made of switch module B1, B2, B3, B4, B5, B6, and this switch module B1, B2, B3, B4, B5, B6 form by transistor S1, S2, S3, S4, S5, S6 and with diode D that these transistors oppositely are connected.
And above-mentioned rectifier diode module 104 is identical with rectifier diode module 2A in the semiconductor device 2 that the front illustrated.And above-mentioned switch module B1～B6 is equivalent to 6 switch element 2B in the semiconductor device 2 that the front illustrated respectively.
By conducting, the shutoff of each transistor S1～S6,107 outputs drive output to compressor electric motor.Inverter driving circuit 108 is set, is used for the driving of said switching circuit 106.
Electric circuit as above constitutes, and the revolution of compressor electric motor 107 is detected by revolution test section 109, and this testing result is supplied with master control part MPU110.
For making the revolution that is detected by above-mentioned revolution test section 109 for setting revolution accordingly with the revolution instruction from the outside input, above-mentioned MPU110 control is by the driving of the switching circuit 106 of above-mentioned inverter driving circuit 108 effects.
By aforesaid each drive controlling, the output frequency of switching circuit 106 changes, and the revolution of compressor electric motor 107 is punctured into above-mentioned setting revolution.That is, be an example of full-wave rectification.
In Fig. 8, voltage doubling rectifing circuit 120 is connected with commercial ac power source 101.This voltage doubling rectifing circuit 120 is made up of rectifier diode module 122 and electric capacity 123,124, and this rectifier diode module 122 is made up of 4 diodes 121.
In addition, switching circuit 106 is connected with the output of above-mentioned voltage doubling rectifing circuit 120.This switching circuit 106 is made of switch module B1, B2, B3, B4, B5, B6, and this switch module B1, B2, B3, B4, B5, B6 form by transistor S1, S2, S3, S4, S5, S6 and with diode D that these transistors oppositely are connected.
And above-mentioned rectifier diode module 122 is identical with rectifier diode module 2A in the semiconductor device 2 that the front illustrated.And above-mentioned switch module B1～B6 is equivalent to 6 switch element 2B in the semiconductor device 2 that the front illustrated respectively.
By conducting, the shutoff of each transistor S1～S6,107 outputs drive output to compressor electric motor.Inverter driving circuit 108 is set, is used for the driving of said switching circuit 106.
Electric circuit as above constitutes, and the revolution of compressor electric motor 107 is detected by revolution test section 109, and this testing result is supplied with master control part MPU110.
For making the revolution that is detected by above-mentioned revolution test section 109 for setting revolution accordingly with the revolution instruction from the outside input, above-mentioned MPU110 control is by the driving of the switching circuit 106 of above-mentioned inverter driving circuit 108 effects.
By aforesaid each drive controlling, the output frequency of switching circuit 106 changes, and the revolution of compressor electric motor 107 is punctured into above-mentioned setting revolution.That is, be an example of voltage multiplying rectifier.
Fig. 9 is the assembly drawing of the electric component device of other embodiment.
At this, use the fin 1A be out of shape.Building block beyond this all and the front illustrate the same, attach same reference numbers also omission it is carried out new explanation.
The installation that many pieces of radiating fin 1bb, the one that above-mentioned fin 1A is located at this substrate 1a one side by substrate 1a, one are located at opposite side constitutes with flange 1c and along bearing with teat 1d of lower edge setting.
That is to say that radiating fin 1bb and solder side tilt to opposition side, the angle of inclination is all identical, and is parallel to each other.Therefore, the circulation that circulates in the heat exchange air between each radiating fin 1bb does not almost change, and guarantees radiating efficiency.
And when this electric component device being put into above-mentioned welding groove 20 weld, the radiating fin 1bb that is arranged in fin 1A foot position does not immerse the scolding tin 21 of fusion.So, the radiating fin 1b that can solve the foot position under the situation of the outstanding radiating fin 1b of level that the front illustrated immerses soldered problem in the scolding tin 21.
And, under the state of the building block of having assembled these electric component devices, all conduct to radiating fin 1 for the heat that semiconductor device 2 is produced, the upper surface of semiconductor device 2 need be stablized driving fit on the lower surface of installation with flange 1c of fin 1.
For this reason, the above-mentioned distance piece of location maintenance semiconductor device 2 is the formations that need satisfy following important document:
1. simultaneously the semiconductor device 2 that, similarly assembled shape is different;
2. also there is the intrinsic dimensional tolerance of semiconductor device in the semiconductor device 2 that shape is identical, so should stably absorb the tolerance of this size.
Below, the relevant distance piece that fully satisfies above condition is described.
Figure 10 (A) is the vertical view of distance piece, and Figure 10 (B) is a cutaway view of seeing position shown in the line of Figure 10 (A) from arrow B-B direction, and Figure 10 (C) is a cutaway view of seeing position shown in the line of Figure 10 (A) from arrow C-C direction.
It all is made of above-mentioned distance piece 4A such elastomeric material of for example silica gel and the material that possesses insulating properties.Be provided with installing hole 7 in the both sides of its left and right sides Width, also be provided with the hole 11 of same diameter at the position of substantial middle.
Near position above-mentioned installing hole 7 gives prominence to that at the upper surface of distance piece 4A alignment pin 8a being set with being integral.In addition, near position above-mentioned installing hole 7 gives prominence to that at the lower surface of distance piece 4A alignment pin 8b being set with being integral.
At the upper surface of above-mentioned distance piece 4A, form the installation recess 4a that the location keeps semiconductor device 2.This install recess 4a by the rectifier diode module install recess (recess being installed) W1 hereinafter referred to as the 1st, and transistor recess (recess being installed hereinafter referred to as the 2nd) W2 be installed constitute.
The above-mentioned the 1st recess W1 is installed is the member that forms in distance piece 4A one side and have only one, in remaining most of space, is provided at predetermined intervals a plurality of the above-mentioned the 2nd along the left and right sides Width of distance piece 4A recess W2 (6 positions) are installed.
The sidewall of above-mentioned installing hole 7 is jetty Da that the part is separated into two frustum shape (upper end is a tabular surface, and perisporium is the inclined plane), and the 2nd sidewall of installing with recess W2 is the narrower jetty Db of width.
The 1st installs recess W1, and to run through fore-and-aft direction open, on the top of the figure of this bottom surface, separates and the also low a pair of center section part 13a of the above-mentioned jetty Da of aspect ratio, Db is set abreast, in the bottom of the figure direction vertical with center section part 13a, forms the bar of carefully dashing forward parallel to each other.
The above-mentioned the 2nd installs recess W2 all only opens in a side of fore-and-aft direction, and the opposite side and the left and right sides are surrounded by jetty Da and jetty Db, and this jetty Da is the local frustum shape that is separated into two, and this jetty Db is the frustum of narrow width.
In the 2nd bottom surface that the closed side of recess W2 is installed, be provided with the center section part 13b of the above-mentioned jetty Da of aspect ratio, frustum that Db is also low, from form the thin prominent bar that is parallel to each other here to the open sides edge.
From the 1st, the 2nd bottom surface, open sides edge that recess W1, W2 are installed, give prominence to that pair of separated teat 12 being set with being integral, there is certain intervals to separating in this each other with teat 12, and has the height dimension identical with the upper surface of distance piece 4A.
So the distance piece 4A of formation keeps rectifier diode module 2A in the above-mentioned the 1st center section part 13a location that recess W1 is installed, and locatees maintained switch element 2B at the above-mentioned the 2nd center section part 13b that recess W2 is installed.
It is outstanding from the upper surface of distance piece 4A that each semiconductor device 2A, 2B are sized to its upper surface.That is to say, can satisfy in the necessary condition of above-mentioned distance piece 4A 1. that simultaneously promptly, semiconductor device 2 that similarly assembled shape is different, semiconductor device 2 driving fit stably is on fin 1.
Have, the 1st installs the left and right sides of recess W1, the left and right sides that reaches the 2nd installation recess W2 and a side of fore-and-aft direction again, and on the basis that is surrounded by jetty Da, the Db of frustum, this bottom surface forms center section part 13a, 13b or carefully prominent bar.
Therefore, form following structure, that is, semiconductor device 2 embedded respectively recess W1, W2 are installed arbitrarily,, strain can take place with comparalive ease by further securely pushing semiconductor device 2.
On the other hand, there are dimensional tolerance in rectifier diode module 2A and switch element 2B as semiconductor device 2 under the state of finished product.If in the scope of this dimensional tolerance, but each recess W1, W2 self is installed strain take place absorbs dimensional tolerance, then do not have obstacle fully installing.
Can satisfy in the necessary condition of above-mentioned distance piece 4A 2., also there is the intrinsic dimensional tolerance of semiconductor device in the semiconductor device 2 that promptly shape is identical, so should stably absorb the tolerance of this size, semiconductor device driving fit stably is on fin 1.
And, the 2nd install on the recess W2 switch element 2B remained on embedded location after, make from the basis that many outstanding pin one 5b of this switch element 2B are separated from each other, insert be located at this open end separation with between the teat 12, and outstanding from distance piece 4A.
As mentioned above, the pin one 5b that can make switch element 2B is insulated separation stably mutually, does not need other insulated separation pin one 5b.
And, with constitute all different of distance piece 4A by silica gel material, above-mentioned installation recess 4a does not have concavo-convex simple shape, installs between recess 4a and the semiconductor device 2 at this, there is heat insulating lamella, also can obtains same effect as elastomeric material as the silica gel material.
In addition, because aforesaid rubber-like distance piece 4A is between fin 1 and printed base plate 3, so when on each component parts, variations in temperature being arranged, can have the effect of mitigation because of the different stress that cause of expansion rate of each component parts.
As above narrate, be characterised in that, here the above-mentioned printed base plate 3 of Shi Yonging is formed by the glass synthesis material.This glass synthesis material and existing general paper phenol resin multi-layer sheet as the printed base plate raw material compare, and have the high characteristic of hardness.
That is to say that by the printed base plate that paper phenol resin multi-layer sheet forms, hardness is low, not yielding.When utilizing screw directly to insert between printed base plate and the fin,, can not make semiconductor device driving fit stably on fin because of screw makes printed base plate injured or crooked.
Relative therewith, by by the glass synthesis material for example the glass epoxy resin material form printed base plate 3, be difficult for can making semiconductor device driving fit stably on fin 1 because of screw causes scar.
In addition, the distance piece 4A that forms by silica gel material in combination, when reaching printed base plate 3 that the glass synthesis material forms and constituting the electric component device, if set the fastening force that these mounting screws 10 are installed inadequately, then for example printed base plate 3 occurs bending and deformation sometimes.
If limit the tightening torque of above-mentioned mounting screw, though the problems referred to above can not take place, because mounting screw 10 is minimum screws, so the setting of moment of torsion is extremely difficult.
Here, by adopting the distance piece shown in Figure 11 (A), (B), (C), can corresponding above problem.
Figure 11 (A) is the vertical view of distance piece, Figure 11 (B) is at the partial sectional view of locating the distance piece under the state that has kept semiconductor device on the distance piece, and Figure 11 (C) is that the part with the electric component device under mounting screw and the clamped stationary state enlarges cutaway view.
It is characterized in that, at the installing hole 7 that is arranged on the distance piece 4B left and right sides and be arranged on each inner peripheral surface in the hole 11 of central portion, embed metal circle 17, because that structure and front beyond this illustrated was identical, so attach same-sign and omit new explanation in Figure 10.
In addition, above-mentioned metal circle 17, though its lower surface is identical with the lower surface of distance piece 4B, the upper surface is set in the position lower slightly than the lower surface of distance piece 4B.
Distance piece 4B is such structure, as described in Figure 11 (B), the 1st location maintenance rectifier diode module 2A on the recess W1 is installed, and the 2nd maintained switch element 2B in location on the recess W2 is installed.
In addition, shown in Figure 11 (C), distance piece 4B is used between the flange 1c between the installation of printed base plate 3 and fin 1, and after being positioned as mentioned above, utilize mounting screw 10 to connect.
The upper surface of each semiconductor device 2 is outstanding a little from the upper surface of the distance piece 4B that is made of the silica gel material elastomeric material, when using mounting screw to connect, push to install and use flange 1c, semiconductor device 2 is sunk among the distance piece 4B, so can prevent the distortion of printed base plate 3.
At this moment, even above-mentioned mounting screw 10 is imposed extremely strong fastening force, installation contacts with the metal circle 17 that embeds installing hole 7 and hole 11 with flange 1c, and the amount of sinking to of above-mentioned distance piece 4B is enclosed 17 restrictions.
That is to say, because above-mentioned metal circle 17 arranged,, can stably stop the distortion of printed base plate 3 so can be not do not impose power greater than needs to printed base plate 3.
The effect of invention
Aforesaid the present invention can improve the efficient that a plurality of semiconductor devices are cooled off. And, can reach following effect, namely simplify semiconductor devices, radiating piece and printed base plate Package assembly reduces operating procedure, helps to reduce cost.
Claims (5)
1. an electric component device has printed base plate, is installed in a plurality of semiconductor device on this printed base plate and bears the heat of above-mentioned a plurality of semiconductor device generations and the heat sink that dispels the heat, and it is characterized in that:
Above-mentioned a plurality of semiconductor device is positioned across the distance piece that is formed by elastomeric material and remains on the above-mentioned printed base plate,
Above-mentioned heat sink and above-mentioned each semiconductor device driving fit, and utilize to insert logical above-mentioned distance piece installing hole erecting tools and be connected with above-mentioned printed base plate with above-mentioned distance piece across above-mentioned each semiconductor device,
Have quoit in the above-mentioned installing hole of above-mentioned distance piece, this quoit limits the distortion of above-mentioned distance piece when erecting tools connects.
2. electric component device as claimed in claim 1 is characterized in that: above-mentioned heat sink has bearing of above-mentioned printed base plate bending of restriction and uses teat.
3. electric component device as claimed in claim 1 is characterized in that: above-mentioned distance piece has makes the separation teat that is separated from each other, insulate from the outstanding a plurality of pins of above-mentioned semiconductor device.
4. electric component device as claimed in claim 1 is characterized in that: above-mentioned heat sink has from a side of above-mentioned printed base plate to the multi-disc radiating fin that tilts with the solder side rightabout.
5. as each described electric component device of claim 1～4, it is characterized in that: above-mentioned printed base plate is formed by the glass synthetic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP064163/2002 | 2002-03-08 | ||
| JP2002064163A JP2003264388A (en) | 2002-03-08 | 2002-03-08 | Electric component device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1444438A CN1444438A (en) | 2003-09-24 |
| CN1256010C true CN1256010C (en) | 2006-05-10 |
Family
ID=28034865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119886 Expired - Fee Related CN1256010C (en) | 2002-03-08 | 2003-03-07 | Electric parts device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003264388A (en) |
| CN (1) | CN1256010C (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005114339A (en) * | 2003-09-17 | 2005-04-28 | Sanyo Electric Co Ltd | Outdoor machine in air conditioner |
| CN100397600C (en) * | 2005-04-26 | 2008-06-25 | 佛山市顺德区顺达电脑厂有限公司 | Transistor modular assembling method and its equipment |
| DE102006061215A1 (en) * | 2006-08-12 | 2008-02-21 | Diehl Ako Stiftung & Co. Kg | Power electronics with heat sink |
| JP5177794B2 (en) * | 2008-02-06 | 2013-04-10 | Ｔｄｋラムダ株式会社 | Radiator |
| JP5529477B2 (en) * | 2009-09-18 | 2014-06-25 | 三菱重工業株式会社 | Inverter-integrated electric compressor |
| JP5712697B2 (en) * | 2010-03-24 | 2015-05-07 | 三菱エンジニアリングプラスチックス株式会社 | Heat dissipation structure of heat dissipation member and heating element |
| JP5336448B2 (en) * | 2010-09-22 | 2013-11-06 | 日立オートモティブシステムズ株式会社 | Electronic control unit |
| CN102306638A (en) * | 2011-08-31 | 2012-01-04 | 昆山锦泰电子器材有限公司 | Assembled radiating fin with transistor |
| DE102012222959B4 (en) * | 2012-12-12 | 2015-04-02 | Semikron Elektronik Gmbh & Co. Kg | Power component device |
| JP6168362B2 (en) * | 2014-09-05 | 2017-07-26 | 株式会社オートネットワーク技術研究所 | Circuit structure, electrical junction box and spacer |
| JP2016076609A (en) * | 2014-10-07 | 2016-05-12 | アール・ビー・コントロールズ株式会社 | Spacer for printed wiring board |
| US10701799B2 (en) * | 2015-03-31 | 2020-06-30 | Hewlett-Packard Development Company, L.P. | Printed circuit board |
| US10123460B2 (en) * | 2015-11-13 | 2018-11-06 | Covidien LLP | System and method for thermal management of electronic devices |
| JP6939068B2 (en) * | 2017-05-09 | 2021-09-22 | 三菱電機株式会社 | How to manufacture heat sinks, lighting fixtures, and heat sinks |
| CN109887894B (en) * | 2019-02-28 | 2020-11-20 | 北京比特大陆科技有限公司 | Heat sink, circuit board and computing device |
| CN110848820A (en) * | 2019-10-22 | 2020-02-28 | 青岛海尔空调器有限总公司 | Radiator and air conditioner |
-
2002
- 2002-03-08 JP JP2002064163A patent/JP2003264388A/en active Pending
-
2003
- 2003-03-07 CN CN 03119886 patent/CN1256010C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003264388A (en) | 2003-09-19 |
| CN1444438A (en) | 2003-09-24 |
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