CN207134986U - Electromagnetism interference DC DC transformer configurations - Google Patents
Electromagnetism interference DC DC transformer configurations Download PDFInfo
- Publication number
- CN207134986U CN207134986U CN201720542776.5U CN201720542776U CN207134986U CN 207134986 U CN207134986 U CN 207134986U CN 201720542776 U CN201720542776 U CN 201720542776U CN 207134986 U CN207134986 U CN 207134986U
- Authority
- CN
- China
- Prior art keywords
- circuit substrate
- electric capacity
- shielding box
- bulge loop
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a kind of electromagnetism interference DC DC transformer configurations,Including shielding box,Circuit substrate and lower capping,Described lower capping is provided with the bulge loop being connected with shielding box,The lower surface of described shielding box is provided with the groove for coordinating with bulge loop,The inner chamber of described shielding box,The wall of groove and the wall of bulge loop all attach electromagnetic wave adsorption paster,The utility model is reasonable in design,Shielding box described in stabilized structure forms a confined space with lower capping,So that outside electromagnetic interference is completely cut off,There is excellent dustproof and waterproof performance simultaneously,Radiator causes sealing space to have good heat dispersion,It is effective to reduce electromagnetic noise caused by heat radiation,It ensure that the runnability of equipment,Circuit substrate carries out bradyseism using spring simultaneously,The mechanical oscillation of alleviator cause the concussion of circuit vigour part.
Description
Technical field
It the utility model is related to a kind of electromagnetism interference DC-DC converter structure.
Background technology
The output characteristics of fuel cell is partially soft, it is difficult to is directly matched with motor driver, therefore must use DC/DC converters
Improve its output characteristics.In order to meet fuel-cell car DC/DC converters small volume, in light weight, efficiency high etc.
It is required that non-isolated, hard switching type DC/DC reduction voltage circuits are employed in design.In DC/DC converters, big work(both it had been related to
The heavy current installations such as rate, the electric power of high current, electronics, further relate to small-power, the weak current equipment such as microelectronic component of low current, forceful electric power
Caused electromagnetic interference constitutes very big threat to the normal operation of weak current equipment in equipment operation.Therefore, a kind of tool of design
The DC-DC converter structure for having good anti-electromagnetic interference function provides stable power for electric car turns into industry technical staff institute
Solve the problems, such as.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
Reason, electromagnetism interference DC-DC converter structure.
The technical scheme in the invention for solving the above technical problem is：A kind of electromagnetism interference DC-DC converter knot
Structure, including shielding box, circuit substrate and lower capping, described lower capping are provided with the bulge loop being connected with shielding box, institute
The lower surface for the shielding box stated is provided with the groove position for coordinating with bulge loop, the inner chamber of described shielding box, the wall of groove position with
And the wall of bulge loop all attaches electromagnetic wave adsorption paster, described bulge loop is equipped with groove position, the outer wall of described bulge loop
The correspondence position of the outside wall surface of face and shielding box is provided with some screws for being used for fixation, and screw is equipped with to be made in screw
Obtain fixed by shielding box and lower capping and form the sealing space of shielding, it is empty that described circuit substrate is arranged on described sealing
In, described lower capping is provided with several fixed columns for being used to support circuit substrate, if described circuit substrate is erected at
On solid fixed column so that the lower surface end of circuit substrate and the lower surface interval of lower capping form heat dissipation channel.
Further：The outside wall surface of described shielding box sets radiator, and described radiator includes radiator fan, radiating
Fin and heat-conducting plate, described heat-conducting plate end face are bonded fixation with the upper surface of shielding box, described heat-conducting plate it is another
End face is bonded with the lower surface of radiating fin, and the both sides of described radiating fin are respectively arranged with some radiator fans.
Further：Described fixed column includes support column and stud, and described circuit substrate, which is provided with, to be used for and spiral shell
The through hole that post coordinates, described stud are arranged in through hole, are set between the lower surface of described circuit substrate and lower capping upper surface
There is spring, described spring is set on support column, one end of described spring and lower capping upper-end contact, the other end of spring
Contacted with the lower surface of circuit substrate, the stud of described circuit substrate upper surface is disposed with rubber-covered pad and spiral shell
Cap so that circuit substrate is fixed in fixed column.
Further：Circuit substrate is provided with converter electronic functional elements, described converter electronic functional elements bag
Include buck-boost converter main circuit, control circuit, switch element, absorbent assembly and temperature switch, described temperature switch with
Control circuit is connected, and described control circuit, switch element, buck-boost converter main circuit and absorbent assembly are sequentially connected,
Described absorbent assembly includes IGBI modules, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, first resistor, second
Resistance, 3rd resistor and the 4th resistance, the both positive and negative polarity output lead of described buck-boost converter main circuit respectively with IGBI
Module both positive and negative polarity input pin connection, the first described electric capacity, first resistor, the second electric capacity, second resistance, 3rd resistor,
3rd electric capacity, the 4th resistance and the 4th electric capacity are electrically connected to form loop, the 4th described electric capacity and the first electric capacity from beginning to end successively
Connecting node and IGBT input positive pole pin be connected, connecting node and the IGBT of 3rd resistor and second resistance input negative pole
Pin is connected, and described first resistor is connected with the connecting node of the second electric capacity with IGBT output cathode leads, and the described the 4th
Resistance is connected with the connecting node of the 3rd electric capacity with IGBT output negative pole leads.
Further：Described circuit substrate is provided with control box, and the internal face of described control box attaches electromagnetic wave and inhaled
Affixed, described control circuit is arranged in control box.
The utility model compared with prior art, has advantages below and effect：It is reasonable in design, described in stabilized structure
Shielding box form a confined space with lower capping so that outside electromagnetic interference is completely cut off, while is had excellent anti-
Dirt water resistance, radiator cause sealing space to have good heat dispersion, and electromagnetism caused by effective reduction heat radiation is made an uproar
Sound, the runnability of equipment is ensure that, while circuit substrate carries out bradyseism using spring, the mechanical oscillation of alleviator cause electricity
The concussion of road vigour part.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment electromagnetism interference DC-DC converter structure.
Fig. 2 is the attachment structure schematic diagram of the utility model embodiment bulge loop and groove.
Fig. 3 is the attachment structure schematic diagram of the utility model embodiment circuit substrate and fixed column.
Fig. 4 is the structural representation of the utility model embodiment converter electronic functional elements.
Fig. 5 is the structural representation of the utility model embodiment absorbent assembly.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment 1
Referring to Fig. 1-Fig. 3, a kind of electromagnetism interference DC-DC converter structure of the present embodiment, including shielding box 1, circuit base
Plate 2 and lower capping 3, described lower capping 3 are provided with the bulge loop 31 being connected with shielding box 1, described shielding box 1
Lower surface is provided with the groove for coordinating with bulge loop 31, the described inner chamber of shielding box 1, the wall of groove and bulge loop 31
Wall all attach electromagnetic wave adsorption paster 4, described bulge loop 31 is equipped with groove, the outside wall surface of described bulge loop 31
And the correspondence position of the outside wall surface of shielding box 1 is provided with some screws for being used for fixation, screw 11 is equipped with screw
So that being fixed by shielding box 1 and lower capping 3 and forming the sealing space 12 of shielding, described circuit substrate 2 is arranged on described
Sealing space 12 in, described lower capping 3 is provided with several and is used to support the fixed column 6 of circuit substrate 2, described circuit
Substrate 2 is erected in some fixed columns 6 so that the lower surface end of circuit substrate 2 and the lower surface interval of lower capping 3 form and radiated
Passage 32, the outside wall surface of described shielding box 1 set radiator, and described radiator includes radiator fan 51, radiating fin 52
And heat-conducting plate, described heat-conducting plate end face are bonded fixation, the other end of described heat-conducting plate with the upper surface of shielding box 1
It is bonded with the lower surface of radiating fin 52, the both sides of described radiating fin 52 are respectively arranged with some radiator fans 51, described
Fixed column 6 include support column 61 and stud 62, described circuit substrate 2 is provided with the through hole for coordinating with stud 62,
Described stud 62 is arranged in through hole, and the lower surface of described circuit substrate 2 and lower capping are provided with spring 63 between 3 upper surfaces,
Described spring 63 is set on support column 61, one end of described spring 63 with it is lower capping 3 upper-end contacts, spring 63 it is another
End contacts with the lower surface of circuit substrate 2, and the stud 62 of the described upper surface of circuit substrate 2 is disposed with rubber-covered pad 64
And nut 65 so that circuit substrate 2 is fixed in fixed column 6, and the utility model is reasonable in design, described in stabilized structure
Shielding box 1 forms a confined spaces with lower capping 3 so that outside electromagnetic interference is completely cut off, while is had excellent anti-
Dirt water resistance, radiator cause sealing space 12 to have good heat dispersion, effective to reduce electromagnetism caused by heat radiation
Noise, it ensure that the runnability of equipment.
Embodiment 2
Referring to Fig. 1-Fig. 5, a kind of electromagnetism interference DC-DC converter structure is present embodiments provided, with embodiment 1
While described technical characteristic, described circuit substrate 2 is provided with converter electronic functional elements, described converter electronics
Functional unit includes buck-boost converter main circuit, control circuit, and switch element, absorbent assembly and temperature switch are described
Temperature switch is connected with control circuit, described control circuit, switch element, buck-boost converter main circuit and absorbent assembly
It is sequentially connected, described absorbent assembly includes IGBI modules, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electricity
Hold C4, first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4, described buck-boost converter main circuit
Both positive and negative polarity output lead be connected respectively with the both positive and negative polarity input pin of IGBI modules, the first described electric capacity C1, first resistor
R1, the second electric capacity C2, second resistance R2,3rd resistor R3, the 3rd electric capacity C3, the 4th resistance R4 and the 4th electric capacity C4 are successively
Be electrically connected to form loop from beginning to end, and the 4th described electric capacity C4 and the first electric capacity C1 connecting node and IGBT input positive pole pins connect
Connect, 3rd resistor R3 and second resistance R2 connecting node be connecteds with IGBT input negative pins, described first resistor R1 and
Second electric capacity C2 connecting node is connected with IGBT output cathode leads, the 4th described resistance R4 and the 3rd electric capacity C3 connection
Node is connected with IGBT output negative pole leads, and described circuit substrate 2 is provided with control box 7, the internal face of described control box 7
Electromagnetic wave adsorption paster 4 is attached, described control circuit is arranged in control box 7, and the present embodiment is using RC capacitance-resistances buffering electricity
Road, electrostatic energy is changed into by the electromagnetic energy of electric capacity voltage and stored, resistance prevents electric capacity and the main electricity of buck-boost converter
Inductance in road produces resonance, and the structure being related to of the present embodiment has good anti-electromagnetic performance, in the anti-electromagnetism of embodiment 1
Further ensure the good runnability of the present apparatus on architecture basics.
Above content described in this specification is only to the utility model example explanation.The utility model
Person of ordinary skill in the field can make various modifications or supplement to described specific embodiment or using class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
Enclose, the scope of protection of the utility model all should be belonged to.
Claims (5)
- A kind of 1. electromagnetism interference DC-DC converter structure, it is characterised in that：Including shielding box, circuit substrate and lower capping, Described lower capping is provided with the bulge loop being connected with shielding box, and the lower surface of described shielding box, which is provided with, to be used for and bulge loop The groove position of cooperation, the wall of the inner chamber of described shielding box, the wall of groove position and bulge loop all attach electromagnetic wave adsorption paster, institute The bulge loop stated is equipped with groove position, and the correspondence position of the outside wall surface of described bulge loop and the outside wall surface of shielding box is provided with Some to be used for fixed screw, screw is equipped with screw so that being fixed by shielding box and lower capping and forming shielding Sealing space, described circuit substrate are arranged in described sealing space, described lower capping be provided with several be used for branch Support the fixed column of circuit substrate, described circuit substrate is erected in some fixed columns so that the lower surface end of circuit substrate with The lower surface interval of lower capping forms heat dissipation channel.
- 2. electromagnetism interference DC-DC converter structure according to claim 1, it is characterised in that：Described shielding box Outside wall surface sets radiator, and described radiator includes radiator fan, radiating fin and heat-conducting plate, described heat-conducting plate one end Face is bonded fixation with the upper surface of shielding box, and the other end of described heat-conducting plate is bonded with the lower surface of radiating fin, described The both sides of radiating fin be respectively arranged with some radiator fans.
- 3. electromagnetism interference DC-DC converter structure according to claim 2, it is characterised in that：Described fixed column bag Support column and stud are included, described circuit substrate is provided with the through hole for coordinating with stud, and described stud is arranged through hole It is interior, spring is provided between the lower surface of described circuit substrate and lower capping upper surface, described spring is set on support column, One end of described spring and lower capping upper-end contact, the other end of spring contact with the lower surface of circuit substrate, described electricity The stud of base board upper surface is disposed with rubber-covered pad and nut so that circuit substrate is fixed in fixed column.
- 4. electromagnetism interference DC-DC converter structure according to claim 1, it is characterised in that：Circuit substrate is provided with Converter electronic functional elements, described converter electronic functional elements include buck-boost converter main circuit, control circuit, opened Close element, absorbent assembly and temperature switch, described temperature switch to be connected with control circuit, described control circuit, switch Element, buck-boost converter main circuit and absorbent assembly are sequentially connected, and described absorbent assembly includes IGBI modules, the first electricity Appearance, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, first resistor, second resistance, 3rd resistor and the 4th resistance, described liter The both positive and negative polarity output lead of buck converter main circuit is connected with the both positive and negative polarity input pin of IGBI modules respectively, and described first Electric capacity, first resistor, the second electric capacity, second resistance, 3rd resistor, the 3rd electric capacity, the 4th resistance and the 4th electric capacity are first successively Tail is electrically connected to form loop, and the 4th described electric capacity is connected with the connecting node of the first electric capacity with IGBT input positive pole pins, the The connecting node of three resistance and second resistance is connected with IGBT input negative pins, described first resistor and the company of the second electric capacity Connect node to be connected with IGBT output cathode leads, connecting node and the IGBT output negative poles of the 4th described resistance and the 3rd electric capacity Lead connects.
- 5. electromagnetism interference DC-DC converter structure according to claim 3, it is characterised in that：Described circuit substrate Control box is provided with, the internal face of described control box attaches electromagnetic wave adsorption paster, and described control circuit is arranged on control In box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720542776.5U CN207134986U (en) | 2017-05-16 | 2017-05-16 | Electromagnetism interference DC DC transformer configurations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720542776.5U CN207134986U (en) | 2017-05-16 | 2017-05-16 | Electromagnetism interference DC DC transformer configurations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207134986U true CN207134986U (en) | 2018-03-23 |
Family
ID=61631239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720542776.5U Expired - Fee Related CN207134986U (en) | 2017-05-16 | 2017-05-16 | Electromagnetism interference DC DC transformer configurations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207134986U (en) |
-
2017
- 2017-05-16 CN CN201720542776.5U patent/CN207134986U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20190516 |