CN209435687U - A kind of filter - Google Patents
A kind of filter Download PDFInfo
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- CN209435687U CN209435687U CN201821555567.5U CN201821555567U CN209435687U CN 209435687 U CN209435687 U CN 209435687U CN 201821555567 U CN201821555567 U CN 201821555567U CN 209435687 U CN209435687 U CN 209435687U
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- layer
- thermally conductive
- conductive sheet
- heat
- filter
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a kind of filters, including bottom plate, filter cabinet is connected with above bottom plate, pin is provided at left and right sides of filter cabinet, filter interior is provided with heat dissipating layer and shielded layer, shielded layer is internally provided with circuit element, pin passes through filter cabinet and connect with circuit element, heat dissipating layer includes the first thermally conductive sheet and the second thermally conductive sheet, heat-conducting layer is provided among first thermally conductive sheet and the second thermally conductive sheet, through-hole is offered among heat-conducting layer, second thermally conductive sheet right side opening is equipped with air inlet, venthole is offered on the left of second thermally conductive sheet, internal cavity is provided among first thermally conductive sheet and heat-conducting layer, external cavity is provided among second thermally conductive sheet and heat-conducting layer, second thermally conductive sheet outer surface is connected with radiating fin, insulating layer inner surface is connected with conductive layer, the quadrangle of conductive layer is connected with electromagnetic sealing liner；It may be implemented the heat dissipation of greater efficiency and has preferable shielding properties.
Description
Technical field
The utility model relates to filter fields, with radiator structure and have shielding function more specifically to one kind
The filter of energy.
Background technique
Filter is the device or circuit that a kind of pair of signal has processing to act on.As the continuous development of electronic market is also more next
More is produced and used extensively.Filter is broadly divided into active filter and passive filter.Main function is to allow useful signal
As zero-decrement as possible to pass through, as big as possible to garbage signal reflection.Generally there are two port, an input letters for filter
Number, an output signal, can choose a square wave group or compound wave of making an uproar by filter using this characteristic, and obtain one
The sine wave of a specific frequency.The function of filter is exactly that the signal of a certain component frequency is allowed smoothly to pass through, and other one
For the signal of component frequency then by biggish inhibition, it is substantially a frequency selection circuit.
Filter housing in the prior art uses general metal shell, and no radiator structure is easy using lower for a long time
A large amount of heat is generated, the service life of filter itself is reduced, the shielding properties of filter entirety is poor, is easy by the external world
Electromagnetic signal interference.
Utility model content
1. technical problems to be solved
Aiming at the problems existing in the prior art, problem is as follows:
(1) without radiator structure；
(2) shielding properties is poor.
2. technical solution
To solve the above problems, the utility model adopts the following technical scheme.
A kind of filter, including bottom plate, the bottom plate top are fixedly connected with filter cabinet, and the filter cabinet is left
Right two sides are evenly spaced to be provided with several pins, and the filter interior is provided with heat dissipating layer and shielded layer,
The shielded layer is fixedly connected on heat dissipating layer inner surface, and the shielded layer is internally provided with circuit element, and the circuit element is solid
Surely it is connected to above bottom plate, the pin passes through filter cabinet and circuit element is electrically connected, and the heat dissipating layer includes first
Thermally conductive sheet and the second thermally conductive sheet, are provided with heat-conducting layer among first thermally conductive sheet and the second thermally conductive sheet, among the heat-conducting layer
Evenly spaced to offer several through-holes, the second thermally conductive sheet right side opening is equipped with air inlet, the second thermally conductive sheet left side
Venthole is offered, is provided with internal cavity among first thermally conductive sheet and heat-conducting layer, in second thermally conductive sheet and heat-conducting layer
Between be provided with external cavity, second thermally conductive sheet outer surface is evenly spaced to be fixedly connected with several radiating fins, the screen
Covering layer includes insulating layer, and the insulating layer inner surface is fixedly connected with conductive layer, and the quadrangle of the conductive layer is fixedly connected to
Electromagnetic sealing liner.
Preferably, filter cabinet front and rear sides are fixedly connected to mounting plate, and the mounting plate left and right sides is
Offer screw hole.
Preferably, conducting wire is provided on the inside of the conductive layer, the conductive layer and conducting wire one end are electrically connected, the conducting wire
The other end passes through composite protection layer and circuit element is electrically connected.
Preferably, the conductive layer and electromagnetic sealing liner outer surface are fixedly connected to composite protection layer, the conducting wire
The other end passes through composite protection layer and circuit element is electrically connected.
Preferably, it is provided with exhaust fan above the venthole, is fixedly connected with temperature sensor above the bottom plate,
Middle temperature sensor model number is PT100, and the exhaust fan and temperature sensor are electrically connected with circuit element.
3. beneficial effect
Compared with the prior art, utility model has the advantages that
(1) the utility model is inside heat dissipating layer by being arranged the first thermally conductive sheet, the second thermally conductive sheet and radiating fin, and
Heat-conducting layer between first thermally conductive sheet and the second thermally conductive sheet can be dissipated the heat of filter box house by heat exchange pattern
It is arrived outside filter cabinet out, by setting internal cavity and external cavity inside heat dissipating layer, through-hole is opened up among heat-conducting layer,
Venthole is opened up on the left of second thermally conductive sheet and right side opens up air inlet, when filter box house generates heat, interior external cavity
Generate the temperature difference, the air of interior external cavity flowed by through-hole, carry out heat dissipation of ventilating, thus solve general filter without
The problem of radiator structure；
(2) the utility model is arranged conductive layer in shielded layer and electromagnetism is close by the way that shielded layer is arranged inside heat dissipating layer
Envelope liner, in filter work, conductive layer is connected circuit element, and then generates shielding action to extraneous electromagnetism, passes through
The insulating layer that conductive layer outer surface is arranged in can completely cut off conductive layer and heat dissipating layer, the generation of electric leakage accident be prevented, to solve
The poor problem of general filter of having determined shielding properties.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model filter box house；
Fig. 3 is the structural schematic diagram of the heat dissipating layer of the utility model；
Fig. 4 is the structural schematic diagram of the shielded layer of the utility model.
Figure label explanation:
1- bottom plate；2- filter cabinet；3- pin；4- heat dissipating layer；5- shielded layer；6- circuit element；The first thermally conductive sheet of 7-；
The second thermally conductive sheet of 8-；9- heat-conducting layer；10- through-hole；11- air inlet；12- venthole；13- internal cavity；14- external cavity；15- heat dissipation
Fin；16- insulating layer；17- conductive layer；18- electromagnetic sealing liner；19- mounting plate；20- screw hole；21- conducting wire；The compound guarantor of 22-
Sheath；23- exhaust fan；24- temperature sensor.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model；The technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe；Obviously；The described embodiments are only a part of the embodiments of the utility model；Rather than whole
Embodiment.Based on the embodiments of the present invention；Those of ordinary skill in the art are without making creative work
Every other embodiment obtained；It fall within the protection scope of the utility model.
Fig. 1-4, a kind of filter, including bottom plate 1 are please referred to, filter cabinet 2 is fixedly connected with above bottom plate 1, is filtered
2 left and right sides of device cabinet is evenly spaced to be provided with several pins 3, and 2 inner surface of filter cabinet is provided with 4 He of heat dissipating layer
Shielded layer 5, shielded layer 5 are fixedly connected on 4 inner surface of heat dissipating layer, and shielded layer 5 is internally provided with circuit element 6, and circuit element 6 is solid
Surely it is connected to 1 top of bottom plate, pin 3 passes through filter cabinet 2 and circuit element 6 is electrically connected, and heat dissipating layer 4 includes first thermally conductive
It is provided with heat-conducting layer 9 among piece 7 and the second thermally conductive sheet 8, the first thermally conductive sheet 7 and the second thermally conductive sheet 8,9 midfeather of heat-conducting layer is equal
Even offers several through-holes 10, and 8 right side opening of the second thermally conductive sheet is equipped with air inlet 11, offers out on the left of the second thermally conductive sheet 8
It is provided with internal cavity 13 among stomata 12, the first thermally conductive sheet 7 and heat-conducting layer 9, is provided among the second thermally conductive sheet 8 and heat-conducting layer 9
External cavity 14,8 outer surface of the second thermally conductive sheet is evenly spaced to be fixedly connected with several radiating fins 15, and shielded layer 5 includes exhausted
Edge layer 16,16 inner surface of insulating layer are fixedly connected with conductive layer 17, and the quadrangle of conductive layer 17 is fixedly connected to electromagnetic sealing lining
Pad 18.
1 front and rear sides of filter cabinet are fixedly connected to mounting plate 19, and 19 left and right sides of mounting plate offers screw hole
20, filter can be fixed on device by screw by setting mounting plate 19 and screw hole 20, be arranged on the inside of conductive layer 17
There is conducting wire 21, conductive layer 17 and 21 one end of conducting wire are electrically connected, and 21 other end of conducting wire and circuit element 6 are electrically connected, by leading
Conductive layer 17 and circuit element 6 are electrically connected by line 21, realize that conductive layer 17 is powered, outside conductive layer 17 and electromagnetic sealing liner 18
Surface is fixedly connected to composite protection layer 22, and 21 other end of conducting wire passes through composite protection layer 22 and circuit element 6 is electrically connected,
Composite protection layer 22 can stop circuit element 6 directly to contact with conductive layer 17 and electromagnetic sealing liner 18, to protect circuit elements
Part 6 is provided with exhaust fan 23 above venthole 12, temperature sensor 24 is fixedly connected with above bottom plate 1, wherein temperature sensor
24 model PT100, exhaust fan 23 and temperature sensor 24 are electrically connected with circuit element 6, when temperature sensor 24 detects
When temperature is higher in filter cabinet 1, exhaust fan 23 is connected, the air between external cavity 14 and internal cavity 13 is accelerated to flow speed
Degree improves radiating efficiency.
Working principle: screw is passed through the screw hole 20 on mounting plate 19 and is threadedly coupled fixation with device, will filtered by the first step
The pin 3 and device of 2 left and right sides of device cabinet are electrically connected, second step, when filter is started to work, circuit element 6 and pin 3
Conducting, circuit element 6 is electrically connected by the conductive layer 17 inside conducting wire 21 and shielded layer 5, in conductive layer 17 and electromagnetic sealing
Under the action of liner 18,2 pairs of filter cabinet extraneous electromagnetic signals produce certain shielding action, and third step works as filter
When work, certain heat can be generated in filter cabinet 2, when the heat generated inside filter cabinet 2 is smaller, heat dissipating layer
Internal cavity 13 inside 4 and the temperature difference that external cavity 14 generates are smaller, pass through the first thermally conductive sheet 7, the second thermally conductive sheet 8 and radiating fin
15 with the modes of heat transfer by outside heat transfer filter cabinet 2 inside to filter cabinet 2, due to internal cavity 13 with outside
Cavity 14 has certain temperature difference, so that the air in external cavity 14 is exchanged by through-hole 10 with the air of internal cavity 13, into
One step accelerates shedding for 2 internal heat of filter cabinet, when the heat that filter internal generates is more, the temperature of 1 top of bottom plate
When degree sensor 24 detects that 2 internal temperature of filter cabinet is higher, the exhaust fan 23 being arranged at venthole 12 will turn on, lead to
Crossing exhaust fan 23 accelerates the air between internal cavity 13 and external cavity 14 to flow, and accelerates filter heat dissipation；By being arranged in conduction
The insulating layer 16 of 17 outer surface of layer, which can completely cut off conductive layer 17 and heat dissipating layer 4, come, and prevent electric leakage accident, by
Conductive layer 17 and electromagnetic sealing pad 18 inner surfaces setting composite protection layer 22 and can separate conductive layer 17 and circuit element 6,
To protect circuit element 6.
Claims (5)
1. a kind of filter, including bottom plate (1), it is characterised in that: be fixedly connected with filter cabinet above the bottom plate (1)
(2), evenly spaced at left and right sides of the filter cabinet (2) to be provided with several pins (3), the filter cabinet
(2) inner surface is provided with heat dissipating layer (4) and shielded layer (5), and the shielded layer (5) is fixedly connected on heat dissipating layer (4) inner surface, institute
It states shielded layer (5) to be internally provided with circuit element (6), the circuit element (6) is fixedly connected on above bottom plate (1), described to draw
Foot (3) passes through filter cabinet (2) and circuit element (6) and is electrically connected, the heat dissipating layer (4) include the first thermally conductive sheet (7) and
Heat-conducting layer (9), the heat-conducting layer are provided among second thermally conductive sheet (8), first thermally conductive sheet (7) and the second thermally conductive sheet (8)
(9) midfeather uniformly offers several through-holes (10), and the second thermally conductive sheet (8) right side opening is equipped with air inlet (11),
It offers venthole (12) on the left of second thermally conductive sheet (8), is provided among first thermally conductive sheet (7) and heat-conducting layer (9)
Internal cavity (13), second thermally conductive sheet (8) and heat-conducting layer (9) centre are provided with external cavity (14), second thermally conductive sheet (8)
Outer surface is evenly spaced to be fixedly connected with several radiating fins (15), and the shielded layer (5) includes insulating layer (16), described
Insulating layer (16) inner surface is fixedly connected with conductive layer (17), and the quadrangle of the conductive layer (17) is fixedly connected to electromagnetic sealing
It pads (18).
2. a kind of filter according to claim 1, it is characterised in that: filter cabinet (2) front and rear sides are solid
Surely it is connected with mounting plate (19), offers screw hole (20) at left and right sides of the mounting plate (19).
3. a kind of filter according to claim 1, it is characterised in that: be provided with conducting wire on the inside of the conductive layer (17)
(21), the conductive layer (17) and conducting wire (21) one end are electrically connected, and conducting wire (21) other end and circuit element (6) are electrically
Connection.
4. a kind of filter according to claim 3, it is characterised in that: the conductive layer (17) and electromagnetic sealing liner
(18) outer surface is fixedly connected to composite protection layer (22), and conducting wire (21) other end passes through composite protection layer (22) and electricity
Circuit component (6) is electrically connected.
5. a kind of filter according to claim 1, it is characterised in that: be provided with exhaust fan above the venthole (12)
(23), temperature sensor (24) are fixedly connected with above the bottom plate (1), wherein temperature sensor (24) model PT100, institute
Exhaust fan (23) and temperature sensor (24) is stated to be electrically connected with circuit element (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555567.5U CN209435687U (en) | 2018-09-25 | 2018-09-25 | A kind of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555567.5U CN209435687U (en) | 2018-09-25 | 2018-09-25 | A kind of filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209435687U true CN209435687U (en) | 2019-09-24 |
Family
ID=68007420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821555567.5U Active CN209435687U (en) | 2018-09-25 | 2018-09-25 | A kind of filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209435687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934153A (en) * | 2018-09-25 | 2018-12-04 | 南京禾鑫坊电子科技有限公司 | A kind of filter |
-
2018
- 2018-09-25 CN CN201821555567.5U patent/CN209435687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934153A (en) * | 2018-09-25 | 2018-12-04 | 南京禾鑫坊电子科技有限公司 | A kind of filter |
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