CN1574573A - Ac converter - Google Patents
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- CN1574573A CN1574573A CN 200410042855 CN200410042855A CN1574573A CN 1574573 A CN1574573 A CN 1574573A CN 200410042855 CN200410042855 CN 200410042855 CN 200410042855 A CN200410042855 A CN 200410042855A CN 1574573 A CN1574573 A CN 1574573A
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Abstract
AC adapter. To protect an element low in heat resistance disposed in the case of an AC adapter from heat produced by exothermic elements disposed in the case, and lengthen the life of the AC adapter. In the AC adapter (1), partitions (21) block radiation heat produced by the exothermic elements (11) to prevent or suppress transmission of the heat to an aluminum electrolytic capacitor (13). For this reason, temperature rise in the aluminum electrolytic capacitor (13) can be prevented, and this results in the lengthened life of the aluminum electrolytic capacitor (13) and the AC adapter (1).
Description
Technical field
The present invention relates to a-c transducer (AC adapter), particularly relate to and being configured on the circuit substrate of enclosure interior, the a-c transducer of the low element of heat generation element and thermal endurance (hereinafter referred to as " low heat-resistant component ") is installed.
Background technology
Before, as a-c transducer, known structure shown in the summary sectional view of Figure 29.
That is: this previous a-c transducer is that the circuit substrate 110 that will a plurality of elements be installed is placed in the resinous housing (hereinafter referred to as " resin-case ") 120 and constitutes.On circuit substrate 110, the low heat resistant element of the heater element 111,112 of the field-effect transistor (FET) that constitutes switching power circuit etc. and aluminium electrolytic capacitor 113 etc. is installed.Particularly, heat generation element 111,112 etc. by heat radiation structure, are emitted the heat that is produced to the outside of a-c transducer.
Specifically, aluminium sheet 131 and the insulating trip 132 made by silicon rubber etc. sequentially lamination on the inner surface of resin-case 120, on circuit substrate 110 sides, above-mentioned heater element is contacted with the radiator of being made by copper coin etc. 133.Insulating trip 132 is connected by the fin of being made by for example aluminium sheet 134 with radiator 133.At this moment, the heat by the heat generation element produces by radiator 133, is sent to heat release sheet 134.In addition, on this heat release sheet 134,,, transmit to aluminium sheet 131 then by insulating trip 132 in case make the conduction thermal diffusion.Reach the heat of aluminium sheet 131, in its universe diffusion, but insufficient inner peripheral surface that reaches resin-case 120 at large, but emit to atmosphere from the outer peripheral face of resin-case 120.
The structure of above-described Figure 29 is well-known and public technology, the known in addition heat release flabellum that is provided with, the structure (patent documentation 1) of the heat release in the transducer is used to promote exchange, and the heat release flabellum and outside heat insulation next door is set between the device case inside, prevent the structure (patent documentation 2) that the external shell temperature inside significantly raises.
Figure 30 represents to have the figure of schematic configuration of the power supply of leakage, breaking function.
For example, the toilet seat of warm water cleaning etc. because be the device of handling around water, therefore must be installed the AC power with leakage, breaking function.In this case, generally be that residual current circuit breaker 5 is separated setting respectively with device body 6, AC power 7 is set on device body 6.
That is: the residual current circuit breaker 5 with plug 103 is installed in the front end of the interchange incoming line 104 of device body 6, and AC power 7 is placed in the device body 6.Use this residual current circuit breaker 5 in this state, in addition, general, the assembly that the residual current circuit breaker 5 of leakage, breaking circuit part 105 is equipped with in inside does not use metal shell, and uses resin-case.
Patent documentation 1: open flat 4-124893 communique in fact.
Patent documentation 2: the spy opens the 2000-14169 communique.
The problem that invention will solve
Yet in above-mentioned previous a-c transducer (Figure 29), for example aluminium electrolytic capacitor 113 is the lower element of thermal endurance (a low heat resistant element).Therefore, when configuration heat generation element in identical resin-case 120, can be subjected to the photothermal very big influence that produces from this heat generation element.
Specifically, in the existing a-c transducer that sell the open market, the relative environment temperature of its internal temperature (for example 25 ℃) rises about 50 ℃, then is contained in inner alminium electrolytic condenser actuator temperature and rises to about 75 ℃.Because like this, when subtracting law according to 10 ℃ half of A Leiniwusi (Arrhenius) and calculate, the life-span of this aluminium electrolytic capacitor, at 105 ℃: 1000H (hour) guaranty in, be about 8000 hours, approximately only one year, so the life-span is extremely short.
This a-c transducer, under the situation about in the short goods of small-sized and weight reduction such as so-called notebook-sized personal computer and various portable electronic machines goods more preferential and time used, using, no problem than the life-span; But, under the situation about adopting in the long-term goods that use such as home-use equipment such as warm water cleaning toilet seat and sensing equipment, then become problem at home-use greenhouse utensil.In the latter case, require life-span as a-c transducer more than 10 years sometimes.
In recent years, in the power supply with leakage, breaking function (Figure 30), the size of device body 6 sides wishes to reduce, and therefore produces the situation that power supply 7 can not be configured in device inside.In addition,, be integral, can improve the design performance of device body 6 and reduce size with residual current circuit breaker 5 by alternating current 7 is separated from device body 6.Again because device body does not require maintenance, so appearance can not be with the problem of the parts that the life-span is arranged (integrated circuit or electrolytic capacitor) of forced air-cooling system cools power supply inside.
Summary of the invention
The present invention considers this point and proposes, and its objective is that protection is configured in the low heat resistant element of the enclosure interior of a-c transducer, is not configured in the influence of the heat that the heat generation element of same enclosure interior produces, and prolongs the life-span of a-c transducer.
Another object of the present invention is under the situation that power supply and residual current circuit breaker are done to be integral, and carries out the hot countermeasure to low parts of life-span, the influence of the heat that the heat generation element of protecting these parts not to be configured in enclosure interior produces.
The used method of dealing with problems
In the present invention, in order to address the above problem, a kind of a-c transducer is provided, it constitutes, be to make the circuit substrate that a plurality of elements that comprise the heat generation element are installed, with at least a portion in the above-mentioned heat generation element that is placed in the resin-case, end side at the foregoing circuit substrate is passed through heat-conduction component, connect and compose with above-mentioned resin-case, it is characterized by, in order to prevent or to suppress on the radiant heat that above-mentioned heat generation element produces reaches low heat resistant element above-mentioned a plurality of element, extend the isolated isolation part that is provided with above-mentioned heat generation element and above-mentioned low heat resistant element towards the foregoing circuit substrate from the inwall of above-mentioned resin-case.
Here, so-called " heat generation element " is meant by power supply and supplies with the element that causes heating; So-called " low heat-resistant component " is meant that above-mentioned thermal endurance is lower, and heat has the element of the lost of life of making tendency.
Adopt this transducer, owing to can cut off the radiant heat that the heat generation element produces, prevent or suppress to pass to the low heat resistant element,, suppress its temperature rising because of protecting this low heat resistant element.As a result, can prolong the life-span of this low heat resistant element, and then, life-span of the a-c transducer that comprises this low heat resistant element can be prolonged.
In addition, because at least a portion in the heat generation element, is connected with resin-case by heat-conduction component in the circuit substrate end side, therefore the heat that the heat generation element can be produced reaches resin-case energetically and emits.
If use the rib of doing to be integral with resin-case to constitute above-mentioned isolation part, then can simply and promptly make this isolation part.
In addition, the front end of above-mentioned isolation part contacts also passable with the circuit substrate face; To penetrate inserting in the hole of being provided with on circuit substrate fixing if be inserted into, and can prevent that then heat from leaking from the coupling part of isolation part and circuit substrate, makes effect of heat insulation reliable.
In addition, between above-mentioned heat generation element and above-mentioned low heat resistant element, a plurality of above-mentioned isolation parts are set, between adjacent isolation part, form air layer.
Adopt this structure,, can further improve effect of heat insulation, therefore, can more prolong the low heat resistant element so that the life-span of a-c transducer by the radiant heat of locating to cut off the heat generation element at a plurality of sections.
At this moment, because above-mentioned isolation part is made of the thermal wall that can freely install He disengageably be located on the above-mentioned resin-case inwall.Therefore, can further improve effect of heat insulation.In this case, when can only using, prevent or when suppressing photothermal conduction, then can cancel the thermal wall that freely to install and to throw off, so can reduce cost from the inner isolation part that is provided with of extending of resin-case.
Above-mentioned heat-conduction component is crossed over face whole inner faces in addition that the extension that is configured in above-mentioned resin-case is provided with above-mentioned isolation part.That is: in this structure, extend the surface that is provided with the isolation part by increasing, can promote the heat release on the face beyond extension is provided with the face of isolation part.On the other hand, because the conduction heat that the heat generation element comes relatively is difficult to reach and extends the face that is provided with the isolation part, therefore can suppress heat and reach the low heat resistant element by the isolation part from this surface.
In addition, as mentioned above,, cut off radiant heat because the isolation part is set, even heat-conduction component and insulating trip are set, not heat release energetically, the temperature that also can suppress the low heat resistant element to a certain extent raises.Therefore, according to the applicable object of a-c transducer, under the situation of the remarkable temperature decreasing effect that does not need the low heat resistant element,,, can reduce the manufacturing cost of this a-c transducer by omitting heat-conduction component and insulating trip with above-mentioned opposite.
Perhaps, make, can promote a part of heat release, on the other hand, can suppress heat to be reached the low heat resistant element by the isolation part by the resin-case of removing the isolation part by the thermal insulation resin by having only from the part of the isolation part that above-mentioned resin-case stretches out.Owing to can improve like this, the exothermicity of a-c transducer and the life-span of prolongation low heat resistant element.
In addition, in the time of near with the inwall of low heat resistant arrangements of components at resin-case, can cool off the low heat resistant element by resin-case, can reduce the temperature of this low heat resistant element energetically, at this moment, require not have to make on the contrary the situation of the temperature rising of low heat resistant element because of heat transfer by resin-case.
Specifically, above-mentioned resin-case be on the part corresponding at least with above-mentioned low heat resistant element, make towards the stage portion of above-mentioned resin-case inside; Above-mentioned stage portion is thought of as following structure, from the face that extends with this stage portion different towards different open extensions of another face of face of extending with this stage portion.For example, above-mentioned stage portion can be the recess to the internal recess of resin-case, about resin-case, about an end extend point-blank to the other end; Also can be with part bending or crooked.
Adopt this structure, owing to can obtain effect same as described above with the low heat resistant element near resin-case.In addition since from an end of the direction of extending recess towards the other end, can ventilate, therefore can promote exothermic effects.
This structure particularly is being applicable to that a pair of plug that power supply is supplied with usefulness under the situation of the a-c transducer of the protruding formation of resin-case, can significantly bring into play its effect.
That is: above-mentioned stage portion is formed on the recess of the internal recess of above-mentioned resin-case; Dispose above-mentioned a pair of plug respectively, make them on above-mentioned recess.Under situation about a-c transducer being installed in the socket, can between the installed surface of the face of socket side and a-c transducer, form air flow path.In this case, and do not have above-mentioned recess, the situation that does not form circulation flow path relatively by the convection current of air, can significantly improve exothermal effect, can prolong the low heat resistant element, and then prolong the life-span of a-c transducer.
In this case, when under situation about above-mentioned plug being inserted in the wall side socket, the end of the bearing of trend of the stage portion of above-mentioned resin-case, to removing when opening as the face outside the face above the above-mentioned resin-case, can prevent to prevent the electric leakage or the fault of a-c transducer from the accumulation of the next dust in plug top and the inflow of moisture.Particularly utilize under the situation of a-c transducer on the equipment that is arranged on around the water, its effect more can obtain.
Particularly in its a-c transducer applicable to a pair of plug protruding formation from above-mentioned resin-case of power supply supply usefulness; Under the situation that is formed in the a-c transducer that the electrical leakage breaking portion on the element that power supply is forwarded to the foregoing circuit substrate from plug is installed between above-mentioned plug and the circuit substrate, can utilize above-mentioned stage portion as insertion section from the outward extending earth connection of electrical leakage breaking portion.That is,, this earth connection is put into stage portion, can without barrier a-c transducer be installed in the socket by being connected with the earth terminal of wall side socket from the front end of the outward extending earth connection of electrical leakage breaking portion.
Here so-called " electrical leakage breaking portion " can be installed in the resin-case outside with so-called electrical leakage breaking machine (ELB) assembling interpolation; Also the function (circuit) of electrical leakage breaking machine can be located in the resin-case integratedly.
In the circuit part that will have the leakage, breaking function (electrical leakage breaking portion), be arranged on integratedly under the situation in the resin-case, to be forwarded to electrical leakage breaking portion on the element of circuit substrate to power supply from plug, be placed on integratedly in the above-mentioned resin-case with the heat generation element, isolated second isolation part with above-mentioned heat generation element and above-mentioned electrical leakage breaking portion is set.Therefore, heat release flabellum etc. is not set, can becomes the measure of the heat that tackles low life-span parts yet.
At this moment, " second isolation part " can be another isolation part different with above-mentioned " isolation part ", also can be the shared isolation part of at least a portion.
This structure especially is being applicable to that a pair of plug that power supply is supplied with usefulness under the situation of the a-c transducer of the protruding formation of resin-case, can significantly bring into play its effect.
That is, under situation about above-mentioned plug being inserted in the wall side socket, above-mentioned electrical leakage breaking portion is configured in the bottom of above-mentioned second isolation part, and above-mentioned heat generation arrangements of components is on top.Can reduce the hot-fluid (thermal windage) that causes to the circulation of air of electrical leakage breaking portion from the heat generation element, realize constituting the measure of the heat of the low life-span parts that tackle electrical leakage breaking portion easily.
In addition, under the state that above-mentioned plug is inserted in the wall side socket, clamp above-mentioned second isolation part, respectively with above-mentioned electrical leakage breaking portion and above-mentioned heat generation arrangements of components in above-mentioned resin-case about.Like this, under the circuit substrate that the heat generation element will be installed and electrical leakage breaking portion are arranged on situation in the resin-case integratedly, can improve the design performance of outer shape.
When the balance of the design performance of considering a-c transducer or structure, under the state that above-mentioned plug is inserted in the wall side socket, above-mentioned electrical leakage breaking portion is configured in the top of above-mentioned second isolation part, and above-mentioned heat generation arrangements of components is in the bottom.
In addition, constitute in a plurality of elements of above-mentioned electrical leakage breaking portion, only the low heat resistant arrangements of components makes and can not transmit the radiant heat of emitting from above-mentioned heat generation element in the space that is separated by second isolation part.
For example, constitute in the element of electrical leakage breaking portion the current transformer that current detecting is used (CT) etc., because there is not the problem of heat, can be configured in the space identical, like this, can save the dead space in the resin-case with the heat generation element of the FET that constitutes switching power circuit etc.
In addition, a plurality of above-mentioned second isolation parts can be set between heat generation element and low heat resistant element, between adjacent second isolation part, form air layer.
Adopt this structure, can cut off on the ground from the next radiant heat of heat generation element, improve effect of heat insulation, therefore can further prolong the life-span of low heat resistant element and then a-c transducer through multistage.
At this moment, because above-mentioned second isolation part is made of the thermal wall that can freely install He disengageably be located on the above-mentioned resin-case inwall.Therefore, can further improve effect of heat insulation.In this case, when only using second isolation part of extending from the resin-case inwall, in the time of can preventing or suppress photothermal conduction, the thermal wall that cancellation can freely be installed and throw off can reduce cost.
In addition, when two heat generation elements of configuration on circuit substrate, each heat generation element is fixed in heat-conduction component in each end side of circuit substrate respectively, by above-mentioned each heat-conduction component close proximity is fixed on the inwall of resin-case, the resin-case heat release that can make progress cooling, at this moment, the heat of heat generation element can partly be emitted from the close proximity of resin-case effectively.
Preferred heat-conduction component preferably utilizes outstanding tapping screw or the resin boss portion that is arranged at the resin-case inwall fixing closely.
In addition, heat-conduction component can insert in the slot part of making on the inwall that is fixed on above-mentioned resin-case.
Above-mentioned heat-conduction component compresses by utilizing the thermal wall rib on the inwall that can freely install and disengageably be located at above-mentioned resin-case, with the inwall close proximity of above-mentioned resin-case.
The effect of invention
Adopt the present invention, because the isolation part can cut off the radiant heat that produces from the heat generation element, the temperature that therefore can suppress the low heat resistant element rises, and the result can prolong this low heat resistant element, and then is the life-span of a-c transducer.
In addition; adopt the present invention; under the situation that power supply and residual current circuit breaker become one, the influence that the hot propertys such as integrated circuit that can protective current detect usefulness are weak, the parts of characteristic variations are not subjected to the heat that the heat generation element produces under the high temperature is the effective hot countermeasure that tackles low life-span parts.Particularly claimed apparatus does not originally keep in repair on one's body, and air cooling fan equivalent life parts are not installed under the situation of power supply unit, by effective natural air cooling power circuit part, can solve the problem at the so-called hot countermeasure of the low life-span parts of power supply inside.
Description of drawings
The sectional view that Fig. 1 cuts open for the part of the general structure of the a-c transducer of expression first embodiment of the present invention.
Fig. 2 is the sectional view shown in the arrow of the A-A direction among Fig. 1.
Fig. 3 is the enlarged drawing of the B details partly of presentation graphs 2.
Fig. 4 is the end view of the general structure of the a-c transducer of expression second embodiment of the present invention.
The sectional view that Fig. 5 cuts open for the part of the a-c transducer of second embodiment seeing from the front.
Fig. 6 is at the sectional view shown in the C-C of Fig. 5 direction arrow.
Fig. 7 is the key diagram of the socket that is connected with the a-c transducer of second embodiment of expression.
The key diagram of the state of Fig. 8 during for the use of a-c transducer of second embodiment of expression.
The key diagram of the state of Fig. 9 during for the use of a-c transducer of second embodiment of expression.
Figure 10 is the vertical view of the general shape of the power supply that has the leakage, breaking function of expression the 3rd embodiment of the present invention.
Figure 11 is the sectional view of seeing along the arrow of the D-D direction of Figure 10.
Figure 12 is the end view of the general shape of the power supply that has the leakage, breaking function of the 3rd embodiment of expression.
Figure 13 is the vertical view of the general shape of the power supply that has the leakage, breaking function of expression the 4th embodiment of the present invention.
Figure 14 is the sectional view of seeing along the arrow of the E-E direction of Figure 13.
Figure 15 is the end view of the general shape of the power supply that has the leakage, breaking function of the 4th embodiment of expression.
Figure 16 is the end view of the general configuration of the power supply that has the leakage, breaking function of expression the 5th embodiment of the present invention.
Figure 17 is the sectional view of seeing along the arrow of the F-F direction of Figure 16.
Figure 18 is the sectional view of seeing along the arrow of the G-G direction of Figure 16.
Figure 19 is the end view of the general configuration of the power supply that has the leakage, breaking function of expression the 6th embodiment of the present invention.
Figure 20 is the sectional view of seeing along the arrow of the H-H direction of Figure 19.
Figure 21 is the sectional view of seeing along the arrow of the I-I direction of Figure 20.
Figure 22 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 23 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 24 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 25 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 26 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 27 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 28 is the key diagram of the distortion example of expression a-c transducer of the present invention.
Figure 29 is the sectional view of the general configuration of the existing a-c transducer of expression.
Figure 30 has the figure of general configuration of the power supply of existing leakage, breaking function for expression.
Symbol description: 1,201 a-c transducers; 2,202 converter bodies; 3 feed cables; 4,204 connector cables; 10,510 circuit substrates; The 10a inserting hole; 11,12 heat generation elements; 13,14,513,514 aluminium electrolytic capacitors; 20,220,320,420,520,620,720,820 resin-cases; 21,21a, 21b, 221,321,421,521,621,821 isolation parts; 32,132 insulating trips; 33,133,530～533,830～833 radiators; 50 sockets; 51 sockets; 52 earth terminals; 203 plugs; 205 electrical leakage breaking portions; The 205a earth connection; The 205b control circuit; 302,402,502,602 power supplys that have a leakage, breaking function; 322,422,522,523,622,623,722 dividing walls; 505 power transformers; The circuit block that 540 current detecting are used; 550 resin boss portion; 840 slot parts.
Embodiment
Below, for clear and definite embodiments of the invention, illustrate of the present invention preferred with reference to the accompanying drawings
Embodiment.
(first embodiment)
The sectional view that Fig. 1 cuts open for the part of the general configuration of the a-c transducer of expression present embodiment, Fig. 2 is its sectional view of seeing along the arrow of A-A direction.
As shown in Figure 1, the a-c transducer 1 of present embodiment is by converter body 2, and feed cable 3 and connector cable 4 constitute.Circuit substrate 10 is housed in the converter body 2, a plurality of elements 11,12,13 of formation switching circuit etc. are installed on this circuit substrate.Feed cable 3 extends to the outside from converter body 2, is connected with socket (wall side socket) on the wall that does not illustrate in the drawings is set, is used to send into AC power.Connector cable 4 extends to the outside from converter body 2, will be transformed into the DC power supply of the direct current of given voltage by a-c transducer 1, supplies with the electrical equipment (not illustrating among the figure) as applicable object.Particularly, isolation part 21 is set, the aluminium electrolytic capacitor 13 (low heat resistant element) that is installed in the central portion of circuit substrate 10 was opened and was surrounded with other heat generation elements in 11,12 minutes.
In more detail, as shown in Figure 2, a-c transducer 1 is that the rectangular circuit substrate 10 that will a plurality of elements be installed is placed in the resin-case 20 of cuboid hollow shape and constitutes.Elements such as heat generation element 11 (in the present embodiment, being the FET semiconductor), aluminium electrolytic capacitor 13 are installed on circuit substrate 10.Particularly in heat generation element 11 grades,, the heat that produces is emitted to the outside of a-c transducer 1 by heat radiation structure described later.
Specifically, in resin-case 20, the insulating trip 32 that configuration is made by silicon rubber etc. on two medial surfaces vertical with circuit substrate 10 in circuit substrate 10 sides, makes heat generation element 11 grades contact with the radiator of being made by copper coin etc. 33.At this moment, the heat by heat generation element 11 grades produce by radiator 33 and insulating trip 32, reaches resin-case 20, and the outer peripheral face from resin-case 20 is discarded to the atmosphere again.
On the other hand, the inwall relative with circuit substrate 10 from resin-case 20 is provided with two isolation parts 21 towards circuit substrate 10, will separate between heat generation element 11 grades and the aluminium electrolytic capacitor 13.This isolation part 21 can be when making resin-case 20, constitute by the rib of doing to be integral with method such as injection molded and this resin-case 20, and for example among Fig. 3 (a), shown in the enlarged drawing of the B of presentation graphs 2 part, the front end of this isolation part 21 penetrates under the state among the inserting hole 10a that is arranged at circuit substrate 10 fixing in insertion.Therefore, can prevent the coupling part leakage of heat by isolation part 21 and circuit substrate 10.
In addition, shown in Fig. 3 (a), in the present embodiment, isolation part 21 is inserted into and penetrates among the inserting hole 10a that is arranged at circuit substrate 10, and and for example shown in Fig. 3 (b), the front end of isolation part 221 can constitute with the face of circuit substrate 10 and contact.
As mentioned above, in the a-c transducer 1 of present embodiment, isolation part 21 cuts off the radiant heat that produces from heat generation element 11, prevents from or suppress to transmit to aluminium electrolytic capacitor 13.Because like this, can suppress aluminium electrolytic capacitor 13 temperature raise, the result can prolong aluminium electrolytic capacitor 13, and then is the life-span of a-c transducer 1.
(second embodiment)
Present embodiment is of the present invention as the a-c transducer formation of the function with so-called electrical leakage breaking machine (ELB).Fig. 4 is the sectional view of seeing along the arrow of the C--C direction of Fig. 5 for the end view of the general configuration of the a-c transducer of expression present embodiment, the sectional view that Fig. 5 cuts open for the part of seeing from the front, Fig. 6.
In addition, the total of the a-c transducer 201 of present embodiment and the common part of above-mentioned first embodiment are many, and therefore same structure division is with identical symbolic representation, omit or simplify its explanation.
As shown in Figure 4, the a-c transducer 201 of present embodiment converter body 202, a pair of plug 203, connector cable 204 and the electrical leakage breaking portion 205 of circuit substrate 10 being housed by inside constitutes.A pair of plug 203 stretches out to the outside from the back side of converter body 202, is connected with wall side socket 50 shown in Figure 7, is used to be taken into AC power.Connector cable 204 extends to the outside from converter body 202, and the direct-current power supply of direct current that will be transformed to given voltage in a-c transducer 201 is as the electrical equipment (not illustrating among the figure) of applicable object.Electrical leakage breaking portion 205 is installed in the converter body 202, and power supply is transferred on the element of circuit substrate 10 from plug 203.
In addition, as shown in Figure 5, be provided with isolation part 221, the aluminium electrolytic capacitor 13 (low heat resistant element) and other heat generation elements that are installed in the central authorities of circuit substrate 10 were opened and surrounded in 11,12 minutes.
As shown in Figure 6, a-c transducer 201 is identical with first embodiment, constitute for circuit substrate 10 being placed in the resin-case 220, but the structure of the isolation part 221 that the structure of resin-case 220 and inwall from resin-case 220 extend out is different.
That is: as Fig. 4 and shown in Figure 6, to the recess 222 of internal recess from the upper end of resin-case 220 towards the lower end, the central portion of the wall relative that is arranged on resin-case 220 with aluminium electrolytic capacitor 13, its upper and lower end face is open.In the present embodiment, the bottom surface 222a of recess 222 is near the aluminium electrolytic capacitor 13 of resin-case 220 inside.
Like this, when using a-c transducer 201, as shown in Figure 8, it is connected with wall side socket 50 shown in Figure 7.Socket 50 has and inserts socket 51 that attaching plug uses and be connected the earth terminal 52 that earth connection is used.And for example shown in Figure 8, at the front end of the earth connection 205a that will extend to the outside from electrical leakage breaking portion 205, under state that the earth terminal 52 of socket 50 is connected, in the socket 51 with plug 203 insertion sockets 50 sides.At this moment, in the recess 222 that the harvesting of the front end of earth connection 205a is to make in the a-c transducer 201.
In addition, the AC power that will obtain by plug 203 is by electrical leakage breaking portion 205, the element of supply circuit substrate 10 when being transformed into given voltage, is transformed into DC power supply, this DC power supply by connector cable 204, is supplied with the electrical equipment as applicable object.Produce in this process under the situation of electric leakage, the control circuit 205b in the electrical leakage breaking portion 205 cuts off the supply of power supply.
As mentioned above, in the a-c transducer 201 of present embodiment, because a pair of plug 203 is set, stride across recess 222 and dispose, under situation about a-c transducer 201 being installed on the socket 50, between the installed surface of the face of socket 50 sides and a-c transducer 201, form the circulation flow path of air.
That is: Fig. 9 represents that the a-c transducer of seeing from the top of Fig. 8 201 is installed in the state on the socket 50.Shown in two figure, owing between the recess 222 of a-c transducer 201 and socket 50, form circulation flow path, so air can convection current in this circulation flow path.
Therefore, utilize air can improve the exothermal effect of a-c transducer 201, can impel the cooling that is configured near the aluminium electrolytic capacitor 13 of this circulation flow path.As a result, can more prolong aluminium electrolytic capacitor 13, thereby also be the life-span of a-c transducer 201.
In addition, this circulation flow path not only can be used as cooling, and can be used as from electrical leakage breaking portion 205 to the utilization of the insertion section of the earth connection 205a of outside extension.
(the 3rd embodiment)
Even previous power supply and residual current circuit breaker are integral, also can produce the disadvantage identical with the problem of above-mentioned first embodiment.
This disadvantage is because the poor heat resistance such as integrated circuit that the current detecting used in residual current circuit breaker is used, and is equipped with that parts that circuit characteristic at high temperature changes cause.Relative therewith, in the electronic circuit component that uses in Switching Power Supply, majority contains the heat-generating electronic part of power transformer or FET semiconductor etc.Owing to like this, must not make heat reach electrical leakage breaking portion from the AC power circuit portion that is placed in the same resin-case.
Figure 10 is the vertical view of the general shape of the power supply that has the leakage, breaking function of expression the 3rd embodiment of the present invention; The sectional view of Figure 11 for seeing along the arrow of D-D direction.
The power supply 302 that this has the leakage, breaking function, be will have the leakage, breaking function circuit part (electrical leakage breaking portion) in resin-case 320, be integral with switching power circuit.Power supply is supplied with a pair of plug 203 of usefulness, and is protruding from resin-case 320.The isolation part 321 that work is integral in the resin-case 320 of cuboid hollow shape, inside at the power supply 302 that has leakage function, extend in the horizontal direction, under the state that plug 203 is inserted in the wall side socket (not illustrating among the figure), the lower space of this isolation part 321 forms the electrical leakage breaking portion 205 isolated with the switching power circuit of the electronic unit that comprises heating.
Dividing wall 322 is same with isolation part 321, is that electrical leakage breaking portion 205 is isolated with switching power circuit reliably, forms with resinous plate body.This dividing wall 322 can freely be installed and disengageably is installed on the inwall of resin-case 320, forms the given space parallel with isolation part 321.
Figure 12 is the end view of the approximate shape of the power supply that has the leakage, breaking function of the 3rd embodiment of expression.
When the plug 203 of the power supply 302 that will have the leakage, breaking function inserted in the wall side socket, electrical leakage breaking portion 205 was forwarded to switching power circuit with power supply from plug 203, simultaneously, cuts off the electricity supply when electric leakage takes place.The electrical leakage breaking portion 205 that heat generating components is few is configured in the bottom of resin-case 320, and the power circuit configuration that comprises the heat generation element at an upper portion thereof.In addition, on the boundary member of electrical leakage breaking portion 205 and power circuit, isolation part 321 and dividing wall 322 form the thermal insulation layer of air as the resin wall.That is: in the power supply 302 that has the leakage, breaking function, be provided with the piecewise and cut off photothermal isolation part 321 and the dividing wall 322 that produces from the heat generation element, the heat from the heat generation element of power circuit produces can not reach electrical leakage breaking portion 205; Simultaneously,, can further improve the isolation part 321 that is located at resin-case 320 inside and the effect of heat insulation of dividing wall 322, therefore can avoid heat to pass to electrical leakage breaking portion 205 by configuration electrical leakage breaking portion 205.
In addition, it is also passable the resin wall that a plurality of fixing isolation parts or multistage can freely install and throw off to be set.Use the thermal insulation resin to constitute dividing wall 322, or use the other parts that constitute by the thermal insulation resin to constitute the part of the isolation part 321 of resin-case 320, can further improve effect of heat insulation.In addition because dividing wall 322 can install and throw off, therefore only with isolation part 321 with regard under the situation not about the problem of heat, cancellation dividing wall 322 can reduce cost.
As mentioned above, adopt the power supply that has the leakage, breaking function 302 of present embodiment, residual current circuit breaker and power circuit can be integral, special heat release flabellum need be set in resin-case 320, can tackle the measure of the heat of the low life-span parts that constitute electrical leakage breaking portion 205 with isolation part 321.In addition, to be configured in the top of the resin-case 320 of easy heat release as the power circuit of thermal source, simultaneously, owing to utilize between the thermal insulation layer cut-out and electrical leakage breaking portion 205 of isolation part 321 and dividing wall 322 and air, therefore can realize that the heat of power circuit does not reach the structure of electrical leakage breaking portion.
(the 4th embodiment)
Present embodiment is identical with the 3rd embodiment, also is by resin wall and air heat-insulation layer are set, and the heat that forms power supply does not reach the structure of residual current circuit breaker.Figure 13 is the vertical view of the power supply approximate shape that has the leakage, breaking function of expression present embodiment; The sectional view of Figure 14 for seeing along the arrow of E-E direction.
Identical with the 3rd embodiment, this power supply 402 that has the leakage, breaking function is in resin-case 420, will have the circuit part (electrical leakage breaking portion 205) of leakage, breaking function, is integral formation with switching power circuit.But as shown in figure 13, power supply is supplied with the right positions of a pair of plug 203 of usefulness in the positive central authorities that depart from resin-case 420, and protruding this point is different with the 3rd embodiment.Do the isolation part 421 that is integral with the resin-case 420 of cuboid hollow shape, inside at the power supply 402 that has the leakage, breaking function, at the above-below direction vertical extent, under the state that plug 203 is inserted in the wall side socket (not demonstrating among the figure), the rightward space of isolation part 421 is made and comprises the isolated electrical leakage breaking portion 205 of switching power circuit of the electronic unit of heating.
Dividing wall 422 is identical with isolation part 421, and is reliably that electrical leakage breaking portion 205 is isolated with switching power circuit, constitutes with resinous plate body.This dividing wall 422 can freely be installed and disengageably is installed on the inwall of resin-case 420, forms the given space parallel with isolation part 421.
Figure 15 is the end view of the general shape of the power supply that has the leakage, breaking function of the 4th embodiment of expression.
When the plug 203 of the power supply 402 that this is had the leakage, breaking function inserted in the wall side socket, electrical leakage breaking portion 205 was forwarded to switching power circuit with power supply from plug 203; Simultaneously, when electric leakage takes place, cut off the electricity supply.Different with the 3rd embodiment, the electrical leakage breaking portion 205 that heat generating components is few is configured in the right side of resin-case 420, and the power circuit that comprises the heat generation element is configured in the left side.That is: have in the power supply 402 of leakage, breaking function at this, be housed in the size of resin-case 420 switch inside power circuits, can not damage the design performance of the outer shape of resin-case 420, can effectively utilize the inner space, this is an advantage.In addition, identical with the 3rd embodiment, sectional is set cuts off photothermal isolation part 421 and the dividing wall 422 that produces from the heat generation element, can make the heat of the heat generation element generation of power circuit not reach electrical leakage breaking portion 205, simultaneously, by configuration electrical leakage breaking 205, can further improve the isolation part 421 that is located at resin-case 420 inside and the effect of heat insulation of dividing wall 422, therefore can avoid heat to reach electrical leakage breaking portion 205.
As mentioned above, adopt the power supply that has the leakage, breaking function 402 of present embodiment, in resin-case 420, form under the situation of one at circuit substrate that the heat generation element will be installed and electrical leakage breaking portion 205, under the state that plug 203 is inserted in the wall side socket, can clamp isolation part 421 and dividing wall 422, with electrical leakage breaking portion 205 and heat generation element be configured in respectively in the resin-case 420 about, therefore can effectively utilize the inner space, improve the design performance of outer shape.
(the 5th embodiment)
Present embodiment is identical with the 3rd embodiment, by resin wall and air heat-insulation layer are set, forms the structure that heat of power supply is not reached residual current circuit breaker.Figure 16 is the end view of the general configuration of the power supply that has the leakage, breaking function of expression the 5th embodiment of the present invention, the sectional view of Figure 17 for seeing along the arrow of F-F direction.Figure 18 is the sectional view of seeing along the arrow of the G-G direction of Figure 16.
The power supply 502 that has the leakage, breaking function, identical with the 3rd, the 4th embodiment, the circuit part (electrical leakage breaking portion 205) that will have the leakage, breaking function is integral with switching power circuit in resin-case 520.As shown in figure 16, under the state that plug 203 is inserted in the wall side sockets, electrical leakage breaking portion 205 is configured in the top of isolation part 521, and with the heat generation arrangements of components in its underpart this point, all different with any one embodiment.Therefore, as shown in figure 18, power supply is supplied with the central portion position place of a pair of plug 203 of usefulness in the top front face of resin-case 520, stretches out.In addition, the low heat resistant element with in a plurality of elements of formation electrical leakage breaking portion 205 is configured in the space that is separated by isolation part 521, makes and can not conduct the radiant heat that produces from the heat generation element.Do not have current transformer (CT) that the current detecting of problem of heat uses etc. identical, be configured in the bottom of isolation part 521 with switching power circuit.
As shown in figure 17, the power supply that has the leakage, breaking function 502 of present embodiment is by the circuit substrate 510 in the resin-case 520; Form the isolation part 521 of configuration electrical leakage breaking portion 205 at an upper portion thereof; Parallel with this isolation part 521 and form the dividing wall 522 in given space; With the aluminium electrolytic capacitor 513,514 (low heat resistant element) that makes the bottom that is installed in circuit substrate 510, the isolation part 523 of opening and surrounding in 11,505 minutes with other heat generation elements constitutes.In this case, preferably with low heat resistant arrangements of components such as aluminium electrolytic capacitor 513,514 below on the circuit substrate 510, on heat generation element 11 position far away.In addition, because on the circuit substrate 510 of switching power circuit, respectively on its primary side and secondary side, low heat resistant elements such as heat generation element 11 (being the FET semiconductor in the present embodiment) and aluminium electrolytic capacitor 513,514 are installed, therefore, for heat generation element 11,, the heat of its generation can be emitted to the outside of resin-case 520 by the heat radiation structure that in first embodiment, describes in detail.
Specifically, as shown in figure 18, in resin-case 520, as heat-conduction component, the configuration aluminium corresponding or the radiator 530,530 of copper alloy respectively with heat generation element 11,11.One end 531 of these radiators 530, by resin boss portion 550, connect airtight fixing with the inwall of resin-case 520, the mid portion 532 of radiator 530 connects airtight with the inwall of the resin-case 520 vertical with circuit substrate 510, and the other end 533 of radiator 530 firmly contacts respectively with each heat generation element 11 that grips or soldering is fixed on circuit substrate 510.The resin that resin boss portion 550 makes resin-case 520 is projection partly, by thermal deformation, radiator 530 is fixed on its side, again with tight fixed heat sink 530 such as tapping screw.
At this moment, as first embodiment, can on the contact-making surface of the inwall of radiator 530 and resin-case 520, place insulating trip.Like this, when by radiator 530, when reaching the heat of generation such as heat generation element 11 on the resin-case 520, because the heat-transfer area increase can be emitted to atmosphere from the outer peripheral face of resin-case 520 expeditiously with heat.
In addition, do not illustrate among Figure 18, on the circuit substrate 510 of switching power circuit, except heat generation element 11,11, also be provided with power transformer 505 as febrifacient circuit block, therefore, the cooling body same with above-mentioned radiator 530 can be connected with this power transformer 505.
Below, the effect of the hot countermeasure of the foregoing description is described.
Under the situation of for example output of 24V, 1A, when the electrical efficiency of hypothesis switching power circuit is 82%, approximately produce the thermal loss of 5W.
In addition, when near wall side socket, when resin-case 520 is of a size of 100 * 60 * 40cm, when on the power supply 502 that is having the leakage, breaking function inwall of isolation part 521 not being set, the temperature rising value is about 60 ℃ (deg), and isolation part 521 is set, and can be suppressed in about 20 ℃.Therefore, because the maximum temperature that the integrated circuit that the current detecting of using in the electrical leakage breaking portion 205 is used is allowed is 80 ℃.When the environment temperature of maximum was 50 ℃, the internal temperature of resin-case 520 was 50 ℃+20 ℃=70 ℃, can allow that maximum temperature is the electrical leakage breaking portion 205 of integrated circuit below 80 ℃ etc. with containing, and is integrated with power circuit.
As mentioned above, adopt the power supply that has the leakage, breaking function 502 of present embodiment, in resin-case 520, be set under the situation of one at circuit substrate 510 that the heat generation element will be installed and electrical leakage breaking portion 205, under the state that plug 203 is inserted in the wall side socket, in resin-case 520, can clamp isolation part 521 and dividing wall 522, electrical leakage breaking portion 205 is configured in top, the power circuit that will comprise the heat generation element is configured in the bottom, like this, can improve the design performance of a-c transducer and the balance of structure.
(the 6th embodiment)
Present embodiment and the 5th embodiment are same, under the state that plug 203 is inserted in the wall side socket, electrical leakage breaking portion 205 are configured in top, and the power circuit that will comprise the heat generation element is configured in the bottom.Figure 19 is the end view of the general configuration of the power supply that has the leakage, breaking function of expression present embodiment, the sectional view of Figure 20 for seeing along the arrow of H-H direction.Figure 21 is the sectional view of seeing along the arrow of the I-I direction of Figure 20.
As shown in figure 20, this power supply 602 that has the leakage, breaking function is provided with rib 622a, 623a, 623b in the outside of dividing wall 622,623, it is characterized by the mid portion 532 of radiator 530 and the inwall close proximity of resin-case 620.Utilize these ribs 622a, 623a, 623b, radiator 530 can be pressed on the inwall of resin-case 620, therefore the heat of heat generation element partly can be emitted from the close proximity of resin-case 620 effectively.
As mentioned above, adopt the power supply that has the leakage, breaking function 602 of present embodiment, because the heat of power supply inside can reach resin-case 620, therefore, by making the inwall close proximity of radiator 530 and resin-case 620, heat can be reached on the resin-case 620 reliably.
6 embodiment of the present invention more than have been described, but embodiments of the invention are not to only limit to the foregoing description, the various forms in technical scope of the present invention all is fine.
For example, among above-mentioned first embodiment, as shown in Figure 2, expression is arranged on structure on two sides vertical with circuit substrate 10 with insulating trip 32 and radiator 33, but as shown in figure 22, the also configurable extension at resin-case 20 of insulating trip 132 and radiator 133 is provided with on the whole inner faces in addition of isolation part 21.
Adopt this structure, can increase the heat-transfer area of heat generation element 11, on the other hand, relative being difficult to of the conduction of heat generation element 11 heat conducts to isolation part 21 and extends on the face that is provided with.Therefore, can prevent that the temperature of aluminium electrolytic capacitor 13 from raising, simultaneously, heat release effectively.
Perhaps, such as shown in figure 23, the isolation part between heat generation element 11 and the aluminium electrolytic capacitor 13 can make multistage as isolation part 21a, isolation part 21b.Like this, by cutting off the radiant heat of heat generation element 11 by stages, can further improve effect of heat insulation.
If only utilize the other parts of making by the thermal insulation resin to constitute the part of the isolation part of resin-case, then can further improve effect of heat insulation.
In addition, as shown in figure 24,, electrolytic capacitor 14 itself can be configured near the inwall of resin-case 20 in order to cool off aluminium electrolytic capacitor 14.For example, in same figure, like that, the support 21d of two isolation part 21c of bridge joint is set, can realizes from the below with the structure of support 21d supporting aluminium electrolytic capacitor 14.In this case, the terminal 14a of aluminium electrolytic capacitor 14 connects the hole of making on support 21d, be connected with the circuit of circuit substrate 10.
In above-mentioned second embodiment, as Fig. 5, Fig. 8, shown in Figure 9, the bearing of trend of getting the recess 222 of resin-case descends thereon, is formed on the open structure in top and bottom again.At this moment, as Figure 25 (a), open on the part of an end that makes recess beyond between the plug 203.And for example with shown in the figure (b), the structure that an end of recess is opened in the side also can.
Adopt this structure, can prevent to pile up or moisture flows into from the dust of the top of plug 203, prevent to leak electricity and the destruction of a-c transducer, utilize under the situation of this a-c transducer on the equipment of handling around water, the effect meaning of gained is big.
In addition, in Fig. 4, expression can be installed electrical leakage breaking portion 205 from the outside and disengageably be installed in the structure outside the resin-case 202, also can integrally be arranged in the resin-case.
In addition, as shown in Figure 8, earth connection 205a draws from electrical leakage breaking portion 205, also can connect resin-case 202 inside, draws from the surface of socket 50 sides.Like this, do not need externally to make circuit to sashay.If the remainder of earth connection 205a is housed in the recess 222, then can damage outward appearance.
In the above-described embodiments, illustrate to have the structure of recess, make as the kerf of Figure 26 stage portion also passable as stage portion.Because stage portion can be guaranteed the space, therefore the cooling to aluminium electrolytic capacitor does not hinder.In addition, in this structure, at an end of the lower curtate of stage portion, it is also passable that the projection identical with shoulder height is set., suppress and the stable power that plug 203 is extracted or rock as fulcrum with the high portion end of stage portion, can be inserted in the socket.
In addition, by the earth connection 205a of electrical leakage breaking portion 205 is drawn from the lower curtate zone as the stage portion of the socket side of resin-case 202, can not need circuit is sashayed,, then can not damage outward appearance if the remainder of earth connection 205a is housed in the stage portion.
In above-mentioned the 6th embodiment, shown in Figure 19, Figure 20, Figure 21 etc., utilize rib 622a, the 623a of dividing wall 622,623,623b that the mid portion 532 of radiator 530 is pressed on the inwall of resin-case 620.Yet, resin-case 720 as shown in figure 27 is such, under the situation of only utilizing dividing wall 722 that electrical leakage breaking portion 205 is separated, on dividing wall 722, make many roots 722a, utilize these ribs 722a, compress radiator 530, simultaneously, can further improve the effect of heat insulation between radiator 530 and the electrical leakage breaking portion 205.
In addition, resin-case 820 as shown in figure 28 is such, also can utilize slot part 840 fixed heat sink 830 (831～833) of resin-case 820 inside.That is: on the inwall up and down of resin-case 820, make slot part 840, by the upper and lower end face of the mid portion 832 of radiator 830 is inserted respectively in the slot part 840, even without the dividing wall 622,623 shown in Figure 19, Figure 20, Figure 21 etc. and rib 622a, 623a, 623b, also can make the internal face close proximity of radiator 830 and resin-case 820.
In addition, in above-mentioned each embodiment, enumerate the example of aluminium electrolytic capacitor as the low heat resistant element, but also applicable the present invention of other low heat resistant elements such as organic semiconductor capacitor, secondary cell.
Claims (24)
1. a-c transducer, it constitutes, and is that the circuit substrate that will a plurality of elements that comprise the heat generation element be installed is housed in the resin-case; Make at least a portion in the described heat generation element, pass through heat-conduction component, be connected, it is characterized by with described resin-case in the end side of described circuit substrate,
In order to prevent or to suppress on the radiant heat that described heat generation element produces reaches low heat resistant element described a plurality of element, extend the isolated isolation part that is provided with described heat generation element and described low heat resistant element towards described circuit substrate from the inwall of described resin-case.
2. a-c transducer as claimed in claim 1 is characterized by,
Described isolation part is by constituting with the integrally formed rib of described resin-case.
3. a-c transducer as claimed in claim 1 is characterized by,
The end of described isolation part is inserted and is formed in the inserting hole of described circuit substrate.
4. a-c transducer as claimed in claim 1 is characterized by,
Between described heat generation element and described low heat resistant element, a plurality of described isolation parts are set, between adjacent isolation part, form air layer.
5. a-c transducer as claimed in claim 1 is characterized by,
Described isolation part is made of the thermal wall that can freely install He disengageably be located on the described resin-case inwall.
6. a-c transducer as claimed in claim 1 is characterized by,
The extension that described heat-conduction component is configured in described resin-case is provided with on face whole inner faces in addition of described isolation part.
7. a-c transducer as claimed in claim 1 is characterized by,
Have only from the part of the isolation part that described resin-case stretches out, make by the thermal insulation resin.
8. a-c transducer as claimed in claim 1 is characterized by,
Described low heat resistant arrangements of components is near the inwall of described resin-case.
9. a-c transducer as claimed in claim 1 is characterized by,
Described resin-case be on the part corresponding at least with described low heat resistant element, the stage portion towards described resin-case inside is set;
Described stage portion is extended and is arranged to, and is from a different face of face that extends with this stage portion, open towards another face that the face that extends with this stage portion is different.
10. a-c transducer as claimed in claim 9 is characterized by,
The a pair of plug that is applicable to power supply supply usefulness is from the a-c transducer of the protruding formation of described resin-case;
Between the described plug and described circuit substrate of described a-c transducer, the electrical leakage breaking portion that power supply is forwarded to the element of described circuit substrate from described plug is installed;
By putting into described stage portion, can be connected with the earth terminal of wall side socket from the front end of the outward extending earth connection of described electrical leakage breaking portion.
11. a-c transducer as claimed in claim 10 is characterized by,
Be applicable to a pair of plug that power supply supplies with usefulness from the a-c transducer of the protruding formation of described resin-case,
Described stage portion forms the recess to the internal recess of described resin-case;
Described a pair of plug strides across described recess ground and disposes respectively.
12. as claim 10 or 11 described a-c transducers, it is characterized by,
Under situation about described plug being inserted in the wall side socket, the end of the bearing of trend of the stage portion of described resin-case is to opening as the face beyond the face above the described resin-case.
13. the system as claimed in claim 1 transducer is characterized by,
To be forwarded to electrical leakage breaking portion on the element of described circuit substrate to power supply from plug, be housed in integratedly in the described resin-case, extend isolated second isolation part that is provided with described heat generation element and described electrical leakage breaking portion with described heat generation element.
14. a-c transducer as claimed in claim 13 is characterized by,
Be applicable to a pair of plug that power supply supplies with usefulness from the a-c transducer of the protruding formation of described resin-case,
Under situation about described plug being inserted in the wall side socket, described electrical leakage breaking portion is configured in the bottom of described second isolation part, and described heat generation arrangements of components is on top.
15. a-c transducer as claimed in claim 13 is characterized by,
Be applicable to a pair of plug that power supply supplies with usefulness from the a-c transducer of the protruding formation of described resin-case,
Under the state that described plug is inserted in the wall side socket, clamp described second isolation part, respectively with described electrical leakage breaking portion and described heat generation arrangements of components in described resin-case about.
16. a-c transducer as claimed in claim 13 is characterized by,
Be applicable to the a-c transducer of a pair of plug of power supply supply usefulness from the protruding formation of described resin-case,
Under the state that described plug is inserted in the wall side socket, described electrical leakage breaking portion is configured in the top of described second isolation part, and described heat generation arrangements of components is in the bottom.
17. a-c transducer as claimed in claim 13 is characterized by,
Constitute the described low heat resistant element in a plurality of elements of described electrical leakage breaking portion, be configured in the space that separates by described second isolation part, make and do not transmit the radiant heat of emitting from described heat generation element.
18. a-c transducer as claimed in claim 13 is characterized by,
A plurality of described second isolation parts are set between described heat generation element and described low heat resistant element, between adjacent second isolation part, form air layer.
19. a-c transducer as claimed in claim 13 is characterized by,
Described second isolation part is made of the thermal wall that can freely install He disengageably be located on the described resin-case inwall.
20. a-c transducer as claimed in claim 13 is characterized by,
On described circuit substrate, dispose two described heat generation elements at least.
21. a-c transducer as claimed in claim 20 is characterized by,
Described heat generation element is separately fixed on the heat-conduction component in each end side of described circuit substrate, connects airtight fixingly by the inwall with described each heat-conduction component and described resin-case, can make progress the resin-case heat release and cools off.
22. a-c transducer as claimed in claim 21 is characterized by,
Outstanding tapping screw or the resin boss portion that is arranged at the inwall of described resin-case of described heat-conduction component utilization fixed.
23. a-c transducer as claimed in claim 21 is characterized by,
Described heat-conduction component inserts the slot part that is fixed on the inwall that is formed at described resin-case.
24. a-c transducer as claimed in claim 21 is characterized by,
Described heat-conduction component compresses by utilizing the thermal wall on the inwall that can freely install and disengageably be located at described resin-case, with the inwall close proximity of described resin-case.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003147344 | 2003-05-26 | ||
| JP2003147344 | 2003-05-26 | ||
| JP2004019507 | 2004-01-28 | ||
| JP2004019507A JP2005012991A (en) | 2003-05-26 | 2004-01-28 | Ac adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1574573A true CN1574573A (en) | 2005-02-02 |
Family
ID=34106621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410042855 Pending CN1574573A (en) | 2003-05-26 | 2004-05-26 | Ac converter |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005012991A (en) |
| CN (1) | CN1574573A (en) |
| TW (1) | TW200503398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795055A (en) * | 2010-04-08 | 2010-08-04 | 三一电气有限责任公司 | Cooling device and cooling method for convertor and convertor |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4607669B2 (en) | 2005-06-06 | 2011-01-05 | 株式会社 液晶先端技術開発センター | Laser annealing phase shifter and laser annealing apparatus |
| JP5156140B1 (en) * | 2012-09-12 | 2013-03-06 | ステラグリーン株式会社 | Communication device |
| JP6073637B2 (en) * | 2012-10-18 | 2017-02-01 | 株式会社小糸製作所 | Electronic unit |
| JP5932704B2 (en) * | 2013-04-04 | 2016-06-08 | 株式会社日本自動車部品総合研究所 | Power converter |
| JP5783212B2 (en) * | 2013-09-06 | 2015-09-24 | Tdk株式会社 | Power supply |
| JP5712315B2 (en) * | 2014-05-13 | 2015-05-07 | 矢崎総業株式会社 | Electronic unit |
| US10624240B2 (en) | 2016-04-29 | 2020-04-14 | Hewlett Packard Enterprise Development Lp | First and second shields for thermal isolation |
| JP7368303B2 (en) | 2020-04-09 | 2023-10-24 | ニチコン株式会社 | power supply |
| JP7322841B2 (en) | 2020-09-17 | 2023-08-08 | 株式会社デンソー | Rotating electric machine unit |
| JP7322840B2 (en) | 2020-09-17 | 2023-08-08 | 株式会社デンソー | Rotating electric machine unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04115479A (en) * | 1990-09-04 | 1992-04-16 | Seiko Epson Corp | Ac adapter |
| JPH04124893U (en) * | 1991-04-22 | 1992-11-13 | 富士通株式会社 | AC adapter power supply |
| JP3026383B2 (en) * | 1992-01-22 | 2000-03-27 | インターユニット株式会社 | Semiconductor device |
| JP2770649B2 (en) * | 1992-05-20 | 1998-07-02 | 日本電気株式会社 | AC adapter with battery |
| JPH07235792A (en) * | 1994-02-25 | 1995-09-05 | Hitachi Ltd | Heat shielding structure in electric equipment housing |
| JP3954321B2 (en) * | 2001-04-27 | 2007-08-08 | 矢崎総業株式会社 | Heat conduction prevention structure of electrical junction box |
| JP2003033032A (en) * | 2001-07-19 | 2003-01-31 | Hitachi Koki Co Ltd | Cooling device for power supply unit |
| JP2003111415A (en) * | 2001-09-26 | 2003-04-11 | Sharp Corp | Ac adapter |
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2004
- 2004-01-28 JP JP2004019507A patent/JP2005012991A/en active Pending
- 2004-05-20 TW TW093114313A patent/TW200503398A/en unknown
- 2004-05-26 CN CN 200410042855 patent/CN1574573A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795055A (en) * | 2010-04-08 | 2010-08-04 | 三一电气有限责任公司 | Cooling device and cooling method for convertor and convertor |
| CN101795055B (en) * | 2010-04-08 | 2012-06-13 | 三一电气有限责任公司 | Cooling device and cooling method for convertor and convertor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200503398A (en) | 2005-01-16 |
| JP2005012991A (en) | 2005-01-13 |
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