CN210007378U - high-flux lightning protection modules - Google Patents
high-flux lightning protection modules Download PDFInfo
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- CN210007378U CN210007378U CN201920624935.5U CN201920624935U CN210007378U CN 210007378 U CN210007378 U CN 210007378U CN 201920624935 U CN201920624935 U CN 201920624935U CN 210007378 U CN210007378 U CN 210007378U
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- flux
- protection module
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Abstract
The utility model provides an high-flux lightning protection modules, this high-flux lightning protection module include shell, PCB board, first ware subassembly and heat conduction glue, and the shell has the open inner chamber that sets up in side, places in the PCB board in the inner chamber, place in the PCB board including the plate body of inner chamber, first ware unit mount is in on the plate body, first ware subassembly is including putting discharge tube, discharge tube steady voltage piece and a plurality of piezo-resistor, the heat conduction glue embedment is in the inner chamber, the heat conduction glue covers completely first ware subassembly, the utility model discloses encapsulate the heat conduction glue in the inner chamber of shell, utilize the high thermal conductivity of heat conduction glue, can effectively increase each components and parts in this lightning protection module, especially the through-flow capacity of little volume device.
Description
Technical Field
The utility model belongs to the technical field of surge protector, especially, relate to kinds of high flux lightning protection modules.
Background
The reasons for the surge (transient pulse) generally include lightning, poor grounding, inductive load switching, power failure removal, and ESD (Electro-Static discharge), and as a result, data loss (or damage) and even equipment damage may occur, wherein the surge caused by lightning is the most destructive.
A conventional method for preventing damage by a lightning surge is to use a surge protector, which is generally composed of a housing, a varistor, a discharge tube, an indicator lamp for indicating a protection state, and the like, built in the housing, at a tip of a power adapter of an electric device. However, in the conventional surge protection devices, especially in the small-sized surge protection devices using small devices, such as the lightning protection modules with small volume, the current flowing performance is low, which results in the safety performance of the surge protection device being reduced and the protection level being lowered.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide kinds of high flux lightning protection modules, aim at solving each components and parts in the current little volume lightning protection module, especially the not enough problem of through-current capacity of little volume device.
The utility model discloses a realize like this high-flux lightning protection modules, including shell, PCB board, first ware subassembly and heat-conducting glue, the shell has the open inner chamber that sets up of side, places in the PCB board in the inner chamber, the PCB board is including placing in the plate body of inner chamber in, first ware subassembly is installed on the plate body, first ware subassembly includes discharge tube, discharge tube steady voltage piece and a plurality of piezo-resistor, the heat-conducting glue embedment is in the inner chamber, the heat-conducting glue covers completely first ware subassembly.
Optionally, the thermal conductivity of the thermal conductive glue is greater than or equal to 0.8W/mK.
Optionally, the heat conducting glue is a flame retardant polymer material.
Optionally, the heat conducting glue is a flame retardant epoxy resin.
Optionally, the heat conducting glue is heat conducting silica gel.
Optionally, a diversion trench is concavely arranged on the inner side edge of the plate body facing the cavity bottom of the inner cavity.
Optionally, a direction from the opening of the inner cavity to the bottom wall of the inner cavity is an outward-inward direction, an installation sliding groove which is outward opened and extends inward is formed in the inner wall of the housing, and the plate body slides into the installation sliding groove through the edge to achieve positioning installation.
Optionally, two spaced parallel convex strips extending from outside to inside are respectively arranged on the inner walls of the two opposite sides of the housing, and the two inner side surfaces of the two convex strips and the inner wall surface of the inner cavity enclose the mounting sliding groove.
Optionally, the PCB further includes an th pin for connecting to a neutral wire, a second pin for connecting to a live wire, and a third pin for connecting to a ground wire, where the th pin, the second pin, and the third pin are all disposed with the plate and protrude from the housing;
the discharge tube voltage stabilizer is electrically connected with the second pin after being communicated with the discharge tube, part of the piezoresistors are electrically connected with the th pin, and the other part of the piezoresistors are electrically connected with the third pin.
Optionally, the inner cavity is filled with the heat-conducting glue, and the th pin, the second pin and the third pin all extend out of the heat-conducting glue.
Based on the structural design, the high-flux lightning protection module encapsulates the element assembly in the inner cavity of the shell by using the heat-conducting glue, so that the heat dissipation efficiency of the high-flux lightning protection module can be increased by using the high heat conductivity of the heat-conducting glue, and then the element assembly, particularly the through-flow capacity of small-volume devices in the element assembly, can be indirectly increased, and the high-flux lightning protection module is safer and more reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only the embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a high-flux lightning protection module according to an embodiment of the present invention;
fig. 2 is an exploded view of a high-current lightning protection module provided by an embodiment of the present invention
Fig. 3 is a schematic structural diagram of an assembled PCB board in a high-flux lightning protection module according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Outer casing | 200 | |
| 110 | |
120 | |
| 130 | |
140 | Third pin |
| 150 | Convex |
310 | |
| 320 | |
330 | Voltage |
| 111 | th mounting through |
112 | Second installation through |
| 113 | Third installation through |
119 | Through |
| 300 | |
118 | |
| 400 | Heat-conducting glue | 160 | |
| 117 | Diversion trench |
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below in with reference to the accompanying drawings and embodiments.
It is noted that when an element is referred to as being "secured to" or "disposed on" another elements, it can be directly on the other elements or indirectly on the other elements when elements are referred to as being "connected to" the other elements, it can be directly connected to the other elements or indirectly connected to the other elements.
It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Thus, a feature defined as "", "second" may explicitly or implicitly include or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like shall be construed to , for example, as being fixedly connected, detachably connected, or in a body, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, connected between two elements, or interacting between two elements.
The embodiment of the utility model provides an kinds of high flux lightning protection modules.
Referring to fig. 1 and 2, the high-current lightning protection module includes a housing 100, a PCB 200, a component assembly and a heat-conducting adhesive 400, the housing 100 has an inner cavity opened at side , the PCB 200 is disposed in the inner cavity, the PCB 200 includes a board body 110 disposed in the inner cavity, the component assembly is mounted on the board body 110 and includes a discharge tube 310, a discharge tube stabilizer 320 and a plurality of piezoresistors 330, the heat-conducting adhesive 400 is encapsulated in the inner cavity, and the heat-conducting adhesive 400 completely covers the component assembly.
Based on the structural design, the high-flux lightning protection module encapsulates the element assembly in the inner cavity of the shell 100 by using the heat-conducting glue 400, so that the heat dissipation efficiency of the high-flux lightning protection module can be increased by using the high heat conductivity of the heat-conducting glue 400, and then the element assembly, especially the through-flow capacity of a small-volume device in the element assembly, can be indirectly increased, and the high-flux lightning protection module is safer and more reliable.
It should be noted that, at present, a common Surge Protection Device (SPD) on the market is usually an external Device, which can be regarded as individual electrical appliances, and the lightning Protection module is mainly used for being built in the electrical appliances, which can be regarded as components of the electrical appliances, and has a smaller volume, a larger application range and more convenient assembly.
In the embodiment of the present invention, in order to ensure the heat conduction effect of the heat conducting glue 400, the through-flow performance of the element assembly is effectively improved, and the heat conductivity coefficient of the heat conducting glue 400 should be preferably greater than or equal to 0.8W/mK. In addition, the solidified thermal conductive adhesive 400 should have high mechanical strength, so that the component on the PCB 200 can be better packaged, and the component can be firmly protected.
, in order to improve the safety of the high-throughflow lightning protection module by , the thermal conductive adhesive 400 is preferably a flame-retardant polymer material with a flame retardant rating of UL94V-0 and above.
Referring to fig. 1 and 2, in the embodiment of the present invention, the inner side edge of the plate body 110 facing the bottom of the inner cavity is concavely provided with the flow guiding groove 117. when the thermal conductive adhesive 400 is filled and sealed, the thermal conductive adhesive 400 entering the space of the side of the inner cavity can enter the space of the other side of the inner cavity through the flow guiding groove, so that the filling and sealing operation is more convenient, and the packaging effect is better.
Referring to fig. 1 and 2, in the embodiment of the present invention, the direction from the opening of the inner cavity to the bottom wall of the inner cavity is the direction from outside to inside, the inner wall of the housing 100 is provided with an installation chute 160 which is opened outwards and extends inwards, and the plate 110 slides into the installation chute 160 through the edge to realize the positioning installation. Thus, the position of the PCB 200 can be relatively fixed, which is beneficial to the subsequent potting operation. Specifically, as shown in fig. 2, in the embodiment of the present invention, two spaced parallel convex strips 150 extending from outside to inside are disposed on the inner walls of the two opposite sides of the housing 100, and the two inner sides of the two convex strips 150 and the inner wall of the inner cavity enclose the mounting sliding slot 160. However, the design is not limited thereto, the PCB board 200 and the housing 100 may be connected by a snap-fit or screw-connection, and the mounting chute 160 may be directly recessed on the inner wall of the inner cavity.
Referring to fig. 1 to 3, in an embodiment of the present invention, the PCB 200 further includes a pin 120 for connecting a neutral wire, a second pin 130 for connecting a live wire, and a third pin 140 for connecting a ground wire, wherein the pin 120, the second pin 130, and the third pin 140 are disposed with the board 110 and protrude from the housing 100, the discharge tube stabilizer 320 and the discharge tube 310 are electrically connected to the second pin 130 after being communicated, a portion of the piezoresistors 330 among the piezoresistors 330 is electrically connected to the pin 120, and another portion of the piezoresistors 330 is electrically connected to the third pin 140. specifically, the three pins are all provided with the through holes 119, the board 110 is provided with a plurality of bonding pad holes 118 for bonding, two piezoresistors 330 are electrically connected to the pin 120, and another two piezoresistors 330 are connected to the third pin 140. it can be understood that the three pins 120, the second pin 130, the third pin 140 are disposed with the board 110 of the PCB 200, that is, that the three pins are disposed with the board 110 of the PCB 200, that is a special lightning protection module with a lightning protection module, and that the lightning protection module is manufactured by using a simple soldering process, thereby reducing the manufacturing cost of the PCB module 200 and the lightning protection module.
step, in the embodiment of the present invention, the thermal conductive glue 400 fills the inner cavity to completely encapsulate the component in the inner cavity, but the th pin 120, the second pin 130, and the third pin 140 all extend out of the thermal conductive glue 400 to connect with the external device.
Before the board body 110 is installed, the PCB 200 is manufactured according to a pre-designed circuit scheme, at this time, the pin 120, the second pin 130 and the third pin 140 arranged with the PCB 200 are processed at the same time and are plated with copper layers, then, the plug-in is performed according to a standard operation procedure, the plug-in sequence principle is that the plug-in is short first and then long, the plug-in is performed first, the discharge tube 310, the discharge tube voltage stabilizer 320, the inner piezoresistor 330 and the outer piezoresistor 330 are inserted first, after the plug-in is completed, wave soldering is adopted to solder the metal pins with the back of the PCB 200, the metal pins are cut to be less than or equal to 1.5mm by using a pin cutter, finally, the assembled PCB 200 is installed into the shell 100, the heat-conducting glue 400 is poured into the shell 100 for encapsulation, and the finished lightning protection module is formed after the heat-conducting glue 400 is solidified.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1, high-flux lightning protection module, comprising:
a shell with an inner cavity opened at the side ,
the PCB is arranged in the inner cavity and comprises a plate body arranged in the inner cavity;
a component assembly mounted on the plate body, the component assembly including a discharge tube, a discharge tube ballast, and a plurality of piezoresistors; and the number of the first and second groups,
the heat-conducting glue is encapsulated in the inner cavity and completely covers the element assembly.
2. The high flux lightning protection module according to claim 1, wherein the thermal conductivity of the thermal conductive paste is greater than or equal to 0.8W/mK.
3. The high-flux lightning protection module according to claim 2, wherein the thermal conductive adhesive is a flame retardant polymer material.
4. The high-flux lightning protection module according to claim 3, wherein the thermally conductive adhesive is a flame retardant epoxy.
5. The high-flux lightning protection module according to claim 3, wherein the thermally conductive adhesive is thermally conductive silicone.
6. The high flux lightning protection module according to claim 1, wherein the inner edge of the plate body facing the cavity bottom of the inner cavity is recessed with a guiding groove.
7. The high-flux lightning protection module according to claim 1, wherein the direction from the opening of the inner cavity to the bottom wall of the inner cavity is an outward-inward direction, the inner wall of the housing is provided with an outward-opening and inward-extending mounting chute, and the plate body is positioned and mounted by sliding into the mounting chute along the edge.
8. The high-flux lightning protection module according to claim 7, wherein the housing has two spaced parallel ribs extending from outside to inside on the inner walls of the opposite sides, and the inner side surfaces of the ribs and the inner wall surface of the inner cavity enclose the mounting slot.
9. The high current lightning protection module according to any of claims 1 to 8, wherein the PCB further comprises a pin for connecting to a neutral wire, a second pin for connecting to a live wire, and a third pin for connecting to a ground wire, the pin, the second pin, and the third pin are disposed integrally with the board and protrude from the housing;
the discharge tube voltage stabilizer is electrically connected with the second pin after being communicated with the discharge tube, part of the piezoresistors are electrically connected with the th pin, and the other part of the piezoresistors are electrically connected with the third pin.
10. The high-flux lightning protection module according to claim 9, wherein the thermal conductive paste fills the inner cavity, and the pin, the second pin, and the third pin all extend out of the thermal conductive paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920624935.5U CN210007378U (en) | 2019-04-30 | 2019-04-30 | high-flux lightning protection modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920624935.5U CN210007378U (en) | 2019-04-30 | 2019-04-30 | high-flux lightning protection modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210007378U true CN210007378U (en) | 2020-01-31 |
Family
ID=69305753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920624935.5U Active CN210007378U (en) | 2019-04-30 | 2019-04-30 | high-flux lightning protection modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210007378U (en) |
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2019
- 2019-04-30 CN CN201920624935.5U patent/CN210007378U/en active Active
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