CN209608536U - Power inverter - Google Patents
Power inverter Download PDFInfo
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- CN209608536U CN209608536U CN201920804360.5U CN201920804360U CN209608536U CN 209608536 U CN209608536 U CN 209608536U CN 201920804360 U CN201920804360 U CN 201920804360U CN 209608536 U CN209608536 U CN 209608536U
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- heat
- conducting piece
- shell
- side plate
- radiator
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Abstract
This application provides a kind of power inverters, are related to the technical field of power supply.The power inverter includes: shell, circuit board, radiator and heat-conducting piece；Circuit board is arranged in the shell；Radiator setting is fixedly connected on the circuit board, and with the circuit board；Heat-conducting piece is contacted with the shell and the radiator respectively.To alleviate the technical problem of power inverter heat dissipation effect difference in the prior art.
Description
[technical field]
This application involves the technical field of power supply more particularly to a kind of power inverters.
[background technique]
Certain electric current can be converted to the electronic equipment of other types electric current by power inverter one kind.Power inverter exists
In use process, the power device in circuit board can generate heat, if these heats not conducted in time, it will influence function
The service life of rate converter, or even have the risk for burning out electronic component.
In the prior art, for the heating problem of power inverter, generally take following several types of cooling: the first is
It in power source internal plus fan, is radiated using strong convection, this mode will lead to power inverter and can not seal；Second is to adopt
With the mode of water cooling, water channel is added inside power shell, and power device is made to be bonded water channel as far as possible, is transferred heat away from,
This mode good heat dissipation effect, but due to increasing water channel, cause shell structure complicated, increase manufacturing cost；The third
It is to be transmitted to the heat of power device on shell, shell is equipped with a large amount of fins, and fin can increase contact of the shell with air
Area distributes heat as early as possible.
For the third type of cooling, when power device apart from shell wall farther out when, power device cannot be contacted with shell, by
In the good conductor that air is not heat, heat-conducting effect is poor, causes the heat of power device that can not be transmitted to shell rapidly, to make function
Rate converter heat dissipation effect is poor.
[utility model content]
In view of this, the embodiment of the present application provides a kind of power inverter, to alleviate power inverter in the prior art
The technical problem of heat dissipation effect difference.
The embodiment of the present application provides a kind of power inverter, comprising:
Shell；
Circuit board is arranged in the shell；
Radiator, setting are fixedly connected on the circuit board, and with the circuit board；
Heat-conducting piece is contacted with the shell and the radiator respectively.
Further, along the case width direction W, the end of the shell includes side plate, and the side plate is equipped with and opens
Mouthful；
The heat-conducting piece includes pressure contact portion, the heat-conducting piece far from the pressure contact portion one end insertion it is described opening and with institute
Radiator contact is stated, the pressure contact portion is fixed with the side plate.
Further, the pressure contact portion is equipped with the first mounting hole, and the one end of fastener far from head is through first peace
Side plate described in dress Kong Bingyu is fixed.
Further, along the case width direction W, the end of the shell includes side plate, and the heat-conducting piece setting exists
Between the side plate and the radiator；
The side plate be equipped with the second mounting hole, fastener far from head one end through second mounting hole and with institute
Heat-conducting piece is stated to fix.
Further, the heat-conducting piece is fixedly connected with the radiator by elastic component.
Further, the heat-conducting piece is equipped with the first groove, extending direction and the shell of first groove
Length direction L is arranged in parallel；
The elastic component includes the first positioning region, and first positioning region is inserted into first groove and by the heat-conducting piece
It is fixedly connected with the radiator.
Further, along the case width direction W, the end of the shell includes side plate, and the heat-conducting piece setting exists
Between the side plate and the radiator；
The side plate is equipped with card slot, and the extending direction of the card slot and the length direction L of the shell are arranged in parallel；
The heat-conducting piece, which is equipped with, to be adapted with the card slot overlapped boss, the boss with the card slot；
The heat-conducting piece is fixedly connected with the radiator by elastic component.
Further, the side plate is equipped with the second groove and third groove, the extending direction of second groove and institute
Height direction H of the extending direction of third groove respectively with the shell is stated to be arranged in parallel；
The elastic component includes two the second positioning regions, and second groove is inserted into one of them described second positioning region,
The third groove is inserted into another described second positioning region.
Further, heat conductive pad or heat-conducting glue are equipped between the heat-conducting piece and the radiator.
Further, the heat-conducting piece is made of metal material.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
Power inverter provided by the present application includes: shell, circuit board, radiator and heat-conducting piece；Circuit board is arranged in institute
It states in shell；Radiator is arranged on the circuit board and is fixedly connected with circuit board.Wherein, heat-conducting piece respectively with shell and dissipate
Hot device contact, makes thermally conductive connection between radiator and shell, can carry out heat transfer.The heat that radiator generates can transmit
To heat-conducting piece, heat-conducting piece timely guides heat, is transmitted to shell rapidly, and heat is distributed from shell again, so as to improve
The heat dissipation performance of power inverter.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
[Detailed description of the invention]
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of power inverter provided by the embodiments of the present application；
Fig. 2 is to apply for that the first structure of power inverter that embodiment provides removes the schematic diagram after upper cover；
Fig. 3 is the front view of power inverter provided by the embodiments of the present application；
Fig. 4 is the sectional view along A-A of Fig. 3；
Fig. 5 is the first structural schematic diagram of heat-conducting piece；
Fig. 6 is the first structural schematic diagram of elastic component；
Fig. 7 is to apply for that second of structure of power inverter that embodiment provides removes the structural schematic diagram after upper cover；
Fig. 8 is the second structural schematic diagram of heat-conducting piece；
Fig. 9 is to apply for that the third structure of power inverter that embodiment provides removes the structural schematic diagram after upper cover；
Figure 10 is the enlarged drawing in Fig. 9 at a；
Figure 11 is to apply for that the third structure of power inverter that embodiment provides removes the top view after upper cover；
Figure 12 is the enlarged drawing in Figure 11 at b；
Figure 13 is the sectional view along A-A in Figure 11；
Figure 14 is the third structural schematic diagram of heat-conducting piece；
Figure 15 is second of structural schematic diagram of elastic component.
Appended drawing reference:
1- upper cover；
2- shell:
21- side plate；
The second groove of 212-；
213- third groove；
3- circuit board；
31- radiator；
4- heat-conducting piece；
41- pressure contact portion；
The first mounting hole of 411-；
The first groove of 42-；
43- boss；
5- elastic component；
The first positioning region 51-；
The second positioning region 52-；
6- fastener.
[specific embodiment]
In order to better understand the technical solution of the application, the embodiment of the present application is retouched in detail with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall in the protection scope of this application.
The term used in the embodiment of the present application is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The application.In the embodiment of the present application and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present application, "left", "right" are with attached drawing
Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present application.In addition, within a context, it is also necessary to
Understand, when mentioning an element and being connected to another element "upper" or "lower", can not only be connected directly between another
Perhaps "lower" can also be indirectly coupled to another element "upper" or "lower" by intermediary element for one element "upper".
As shown in Figure 1, Figure 3, power inverter provided by the embodiments of the present application includes: shell 2 and is arranged on shell 2
Upper cover 1；Upper cover 1 is linked together with shell 2 by fixing piece, and the reliability that upper cover 1 is connect with shell 2 is improved.2 He of shell
It is equipped with sealing element between upper cover 1, the sealing performance of power inverter can be improved.Sealing element can be sealing ring, be also possible to
Other structures that shell 2 and upper cover 1 can be made to be tightly connected.Sealing element can be rubber material, be also possible to any other suitable
Condensation material is made, preferably, sealing element is the sealing ring of rubber material.Fixing piece can be suitble to knot for screw, bolt etc. are any
Structure.
Circuit board 3 is arranged in shell 2, can be fixedly connected, can also be flexibly connected with shell 2 with shell 2.Radiator 31
It is arranged on circuit board 3 and is fixedly connected with circuit board 3.Radiator 31 can be connect with circuit board 3 by fixing piece, can also be with
By being welded to connect, preferably, radiator 31 and circuit board 3 pass through welded connecting.
Wherein, heat-conducting piece 4 is contacted with shell 2 and radiator 31 respectively, makes thermally conductive connection between radiator 31 and shell 2,
It can carry out heat transfer.The heat that radiator 31 generates timely can guide heat for delivery to heat-conducting piece 4, heat-conducting piece 4,
It is transmitted to shell 2 rapidly, heat is distributed from shell 2 again, so as to improve the heat dissipation performance of power inverter.
It should be noted that heat-conducting piece 4 is the good conductor of heat, can be made of the materials such as such as silver, copper, aluminium, or
The high molecular material of good heat conductivity is made.Preferably, heat-conducting piece 4 is made of aluminum material, since aluminium price is low, function can be saved
The production cost of rate converter.
Further, it is equipped with heat conductive pad or heat-conducting glue between heat-conducting piece 4 and radiator 31, heat-conducting piece 4 can be increased and dissipates
The area of hot 31 heat transfer of device.Optionally, heat conductive pad can be connect by being bonded with heat-conducting piece 4, by bonding and can also be dissipated
Hot device 31 connects, and heat conductive pad can also be Nian Jie with radiator 31 with heat-conducting piece 4 respectively.Heat conductive pad can also be by any other suitable
Conjunction mode is fixed between heat-conducting piece 4 and radiator 31, increases the area of heat-conducting piece 4 and 31 heat transfer of radiator.
Further, heat-conducting piece 4 is made of metal material.Due to the good conductor that metal is heat, the heating conduction ratio of metal
Heat-conducting glue and air will be got well, and had better thermal conduction effect, can be improved the heat dissipation performance of power inverter.Further, since leading
Hot glue is expensive, and heat-conducting piece 4 is made of metal material, and can reduce power conversion cost, while can also mitigate power change
The weight of parallel operation.
In a specific embodiment, as shown in Figure 7 and Figure 8, along 2 width direction W of shell, the end of shell 2 includes
Side plate 21, side plate 21 are equipped with opening；Heat-conducting piece 4 includes pressure contact portion 41, one end insertion opening of the heat-conducting piece 4 far from pressure contact portion 41
And contacted with radiator 31, pressure contact portion 41 and side plate 21 are fixed.The heat that radiator 31 generates can be by heat-conducting piece 4 far from pressure
One end of socket part 41 is transmitted to rapidly pressure contact portion 41, and is transmitted and transferred heat to and the fixation of pressure contact portion 41 by pressure contact portion 41
At side plate 21, timely heat is guided, heat is distributed from side plate 21 again, so as to improve the thermal diffusivity of power inverter
Energy.
Optionally, pressure contact portion 41 and side plate 21 can be connected by clamping, can also be connected by fastener 6, can be with
It is connected by any other suitable structure, as long as can be fixed by pressure contact portion 41 and side plate 21.
Optionally, opening can be square hole, or circular hole, as long as heat-conducting piece 4 can from opening be pushed into and with heat dissipation
Device 31 contacts.
Optionally, it is equipped with sealing element between pressure contact portion 41 and side plate 21, the sealing performance of power inverter can be improved.It is close
Sealing can be sealing ring, be also possible to other structures that pressure contact portion 41 and side plate 21 can be made to be tightly connected.Sealing element can be with
It is rubber material, is also possible to any other suitable material and is made, preferably, sealing element is the sealing ring of rubber material.
Further, pressure contact portion 41 is equipped with the first mounting hole 411, and the one end of fastener 6 far from head is through the first installation
Hole 411 is simultaneously fixed with side plate 21, improves the reliability that pressure contact portion 41 is connect with side plate 21.Fastener 6 can be screw, bolt
It is suitble to structure Deng any.When being equipped with sealing element between pressure contact portion 41 and side plate 21, fastener 6 sequentially passes through the first mounting hole
It 411 and sealing element and is fixedly connected with side plate 21, improves the sealing performance of power inverter, and improve pressure contact portion 41 and side
The reliability that plate 21 connects.
Optionally, can be fixedly connected by elastic component 5 between heat-conducting piece 4 and radiator 31, can also by bonding or
Any other suitable structure is fixedly connected.Preferably, can be fixedly connected by elastic component 5 between heat-conducting piece 4 and radiator 31,
The reliability that heat-conducting piece 4 is connect with radiator 31 can be improved.Elastic component 5 can be suitble to for elastic clip, spring leaf etc. are any
Structure, as long as can generate deformation under force, restoring to the original state again by heat-conducting piece 4 and the fixation of radiator 31 after removing external force is
It can.Preferably, being equipped with heat conductive pad between heat-conducting piece 4 and radiator 31, heat dissipation effect is further increased.
In a specific embodiment, as shown in Figure 2 and Figure 4, along 2 width direction W of shell, the end of shell 2 includes
Side plate 21, heat-conducting piece 4 are arranged between side plate 21 and radiator 31, and heat-conducting piece 4 is contacted with shell 2 and radiator 31 respectively, is made
Thermally conductive connection between radiator 31 and shell 2 can carry out heat transfer.Side plate 21 is equipped with the second mounting hole, and fastener 6 is remote
One end from head is through the second mounting hole and fixed with heat-conducting piece 4, can be improved side plate 21 and heat-conducting piece 4 connect it is reliable
Property.The heat that radiator 31 generates timely can guide heat for delivery to heat-conducting piece 4, heat-conducting piece 4, be transmitted to shell rapidly
2, heat is distributed from shell 2 again, so as to improve the heat dissipation performance of power inverter.
Optionally, the one end of fastener 6 far from head is threadedly coupled through the second mounting hole and with heat-conducting piece 4, fastener 6
It can be bolt, or screw.
Further, heat-conducting piece 4 is fixedly connected with radiator 31 by elastic component 5, and heat-conducting piece 4 and radiator can be improved
The reliability of 31 connections.Elastic component 5 can be the arbitrarily suitable structure such as elastic clip, spring leaf, as long as under force can
Deformation is generated, restores to the original state again after removing external force and heat-conducting piece 4 and radiator 31 is clamped and fixed.
As shown in Figure 5 and Figure 6, heat-conducting piece 4 is equipped with the first groove 42, extending direction and the shell 2 of the first groove 42
Length direction L is arranged in parallel；Elastic component 5 includes the first positioning region 51, and the first positioning region 51 is inserted into the first groove 42 and will be thermally conductive
Part 4 is fixedly connected with radiator 31, is clamped heat-conducting piece 4 and radiator 31 by elastic component 5, and heat-conducting piece 4 can be improved and dissipate
The reliability that hot device 31 connects.
Further, it is equipped with sealing element between fastener 6 and shell 2, fastener 6 and 2 junction of shell can be improved
Sealing performance.Sealing element can be sealing ring, be also possible to other structures that shell 2 and upper cover 1 can be made to be tightly connected.Sealing
Part can be rubber material, is also possible to any other suitable material and is made, preferably, sealing element is the sealing of rubber material
Circle.
In a specific embodiment, as shown in Fig. 9, Figure 10, Figure 11, Figure 12 and Figure 13, along 2 width direction W of shell,
The end of shell 2 includes side plate 21, and heat-conducting piece 4 is arranged between side plate 21 and radiator 31, and side plate 21 is equipped with card slot, is such as schemed
Shown in 14, the extending direction of card slot is arranged in parallel with the length direction L of shell 2；Heat-conducting piece 4 is equipped with and card slot overlapped boss
43, boss 43 is adapted with card slot, increases the contact area of side plate 21 Yu heat-conducting piece 4, improves side plate 21 and heat-conducting piece 4 connects
The reliability connect, heat-conducting piece 4 are fixedly connected with radiator 31 by elastic component 5.It can be by radiator using the elastic force of elastic component 5
31 compress with side plate 21, it is made to clamp the heat-conducting piece 4 between radiator 31 and side plate 21, improve the connection of heat-conducting piece 4
Reliability.
Further, side plate 21 be equipped with the second groove 212 and third groove 213, the extending direction of the second groove 212 and
Height direction H of the extending direction of third groove 213 respectively with shell 2 is arranged in parallel.As shown in figure 15, elastic component 5 includes two
The second groove 212 is inserted into a second positioning region 52, one of them second positioning region 52, and third is inserted into another second positioning region 52
Groove 213 further increases the reliability that elastic component 5 is connect with side plate 21.Wherein, elastic component 5 can be elastic clip, spring
The arbitrarily suitable structure such as piece restores to the original state again by heat-conducting piece 4 and dissipates after removing external force as long as can generate deformation under force
Hot device 31 is fixed.
The above is only the preferred embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (10)
1. a kind of power inverter characterized by comprising
Shell；
Circuit board is arranged in the shell；
Radiator, setting are fixedly connected on the circuit board, and with the circuit board；
Heat-conducting piece is contacted with the shell and the radiator respectively.
2. power inverter according to claim 1, which is characterized in that
Along the case width direction (W), the end of the shell includes side plate, and the side plate is equipped with opening；
The heat-conducting piece includes pressure contact portion, and one end insertion opening of the heat-conducting piece far from the pressure contact portion is simultaneously dissipated with described
Hot device contact, the pressure contact portion are fixed with the side plate.
3. power inverter according to claim 2, which is characterized in that
The pressure contact portion be equipped with the first mounting hole, fastener far from head one end through first mounting hole and with the side
Plate is fixed.
4. power inverter according to claim 1, which is characterized in that
Along the case width direction (W), the end of the shell includes side plate, and the heat-conducting piece is arranged in the side plate and institute
It states between radiator；
The side plate is equipped with the second mounting hole, and the one end of fastener far from head is led through second mounting hole and with described
Warmware is fixed.
5. power inverter according to claim 1-4, which is characterized in that
The heat-conducting piece is fixedly connected with the radiator by elastic component.
6. power inverter according to claim 5, which is characterized in that
The heat-conducting piece is equipped with the first groove, and the extending direction of first groove and the length direction (L) of the shell are flat
Row setting；
The elastic component includes the first positioning region, and first positioning region is inserted into first groove and by the heat-conducting piece and institute
Radiator is stated to be fixedly connected.
7. power inverter according to claim 1, which is characterized in that
Along the case width direction (W), the end of the shell includes side plate, and the heat-conducting piece is arranged in the side plate and institute
It states between radiator；
The side plate is equipped with card slot, and the extending direction of the card slot and the length direction (L) of the shell are arranged in parallel；
The heat-conducting piece, which is equipped with, to be adapted with the card slot overlapped boss, the boss with the card slot；
The heat-conducting piece is fixedly connected with the radiator by elastic component.
8. power inverter according to claim 7, which is characterized in that
The side plate is equipped with the second groove and third groove, the extending direction of second groove and prolonging for the third groove
Direction is stretched to be arranged in parallel with the short transverse of the shell (H) respectively；
The elastic component includes two the second positioning regions, and second groove is inserted into one of them described second positioning region, another
The third groove is inserted into a second positioning region.
9. power inverter according to claim 1, which is characterized in that
Heat conductive pad or heat-conducting glue are equipped between the heat-conducting piece and the radiator.
10. power inverter according to claim 1, which is characterized in that
The heat-conducting piece is made of metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920804360.5U CN209608536U (en) | 2019-05-30 | 2019-05-30 | Power inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920804360.5U CN209608536U (en) | 2019-05-30 | 2019-05-30 | Power inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209608536U true CN209608536U (en) | 2019-11-08 |
Family
ID=68407015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920804360.5U Active CN209608536U (en) | 2019-05-30 | 2019-05-30 | Power inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209608536U (en) |
-
2019
- 2019-05-30 CN CN201920804360.5U patent/CN209608536U/en active Active
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