CN206211511U - A kind of lightning protection device hot release unit of power supply class - Google Patents
A kind of lightning protection device hot release unit of power supply class Download PDFInfo
- Publication number
- CN206211511U CN206211511U CN201621219330.0U CN201621219330U CN206211511U CN 206211511 U CN206211511 U CN 206211511U CN 201621219330 U CN201621219330 U CN 201621219330U CN 206211511 U CN206211511 U CN 206211511U
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- China
- Prior art keywords
- lightning protection
- sheet metal
- protection device
- release unit
- power supply
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Abstract
The utility model discloses a kind of hot release unit of lightning protection device of power supply class, including sheet metal, one end of the sheet metal is fixed, and the other end of the sheet metal is provided with the point of pointed shape, and projection is provided with the point；The sheet metal is welded by the point with lightning protection component pin；Wherein, it is weld between the projection is arrived at the sheet metal tip.The utility model produces continuous high temperature using metallic conductor tip heat accumulation effect and electric current tip building-up effect, makes the hot release unit start, and cuts off power frequency overcurrent（Including power frequency leakage current and power frequency continued flow）To the deteriorating effect of lightning protection device body device, prevent because of the generation of the disaster hidden-trouble that overcurrent is produced.
Description
Technical field
The utility model is related to lightning protection device technical field, the hot release unit of lightning protection device of particularly a kind of power supply class.
Background technology
The present situation of the hot release unit of the existing class lightning protection device of power supply on the market
Hidden danger when the first, deteriorating
The hot release unit of the common low-tension supply class lightning protection device in current market, using low temperature scolding tin, heat is departed from and is filled
Dropout sheet metal in putting welds together with lightning protection device body device metal pin, when there is power frequency overcurrent, lightning protection device
Body device heating, temperature is passed to the pad with dropout sheet metal, when reaching this scolding tin fusing point, the company at pad position
Loosening is connect, dropout sheet metal is acted because of external force, separated with the metal pins of device, play hot disengaging effect.
It is as shown below：Fig. 1 show market thermal release device without departing from when state, when lightning protection device body device heating
When, by heat transfer, low temperature scolding tin 1 ' and hot dropout pin 2 ' are communicated the temperature to, now, power frequency overcurrent is also by unit
The pin 3 ' of device, has been conducted through low temperature scolding tin 1 ' and hot dropout pin 2 '.After power frequency overcurrent reaches some strength, prevent
Thunder device body device is persistently deteriorated and generated heat, when temperature reach and persistently be higher than low temperature scolding tin fusing point when（About 160 DEG C~180
℃）, melts soldering tin loosen, hot dropout pin under external force, with component's feet depart from, as shown in Figure 2.
But low temperature scolding tin is leaded, viscosity is big, and condensation point is low, when departing from, can produce wire drawing phenomenon.
As shown in Figure 3：I.e. thermal release device is acted, but is but not carried out electrical separation with lightning protection device pin 2 ', according to
The two is connected to by solder stick 4 ' so so that power frequency overcurrent still can be by " lightning protection device pin --- solder stick ---
Hot dropout pin " this connection approach carries out lasting bad effect so that lightning protection device body component is overheated, and causes burning.
In addition, when welding pin is with hot dropout pin, it is necessary to the operating personnel for knowing a thing or two, use few soldering tin amount
Just it is avoided that wire drawing.But this work is difficult to be controlled scolding tin consumption, cause production efficiency low, labor cost
It is high.
2nd, there is the hidden danger of conventional hot release unit during excess surge impact
Low-tension supply class lightning protection device on the market, with the above-mentioned hot release unit of routine.There is lightning protection device protection
During surge impact in parameter area, hot release unit is failure to actuate, it is ensured that lightning protection device being capable of normal work.But exceeding
The surge impact of lightning protection device protective capacities（That is excess surge impact）When, conventional hot release unit is still failure to actuate.
The design of this hot release unit, can give one wrong understanding of user --- and see that the damage of lightning protection device is indicated, recognize
To be lightning protection device because of broken by lightning.And actually lightning protection device causes that heat departs from because there occurs power frequency overcurrent on circuit
Device action, shows distress condition, not because broken by lightning.And when there is excess surge impact, lightning protection device is not because have
The mechanism for damaging can be indicated, it is impossible to show damage information, when there is surge to occur again, even in lightning protection device protection parameter
Magnitude, lightning protection device does not work because of damaging yet so that damaged by protection equipment.User it finds that, lightning protection device " does not have bad ",
Equipment is struck by lightning and is broken, and so as to lose the trust to lightning protection device, produces the inoperative misunderstanding of lightning protection device.
The low-tension supply class lightning protection device of market can only process failure when there is power frequency overcurrent, carry out dropout treatment, but
Failure disengaging treatment can not be carried out to lightning protection device when lightning protection device occurred excess surge impact.Two kinds of damage shapes of lightning protection device
Condition, can only show one kind.
In sum, hot release unit conventional on the market at present has following defect：
1st, depart from not thorough, there is scolding tin wire drawing phenomenon.
2nd, assembly difficulty is big, does not have controllable data volume to be welded.
3rd, can not depart from when excess is struck by lightning.
4th, scolding tin has lead, does not meet environmental requirement.
Utility model content
The technical problems to be solved in the utility model is directed to above-mentioned the deficiencies in the prior art, there is provided a kind of power supply class it is anti-
The hot release unit of thunder device, can either immediately act when there is power frequency overcurrent, thoroughly thread off, and thunderbolt excess is occurring
When, it is also possible to thoroughly thread off.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of lightning protection device heat of power supply class
Release unit, including sheet metal, one end of the sheet metal are fixed, and the other end of the sheet metal is provided with the tip of pointed shape
Portion, projection is provided with the point；The sheet metal is welded by the point with lightning protection component pin；Wherein, it is described
Sheet metal tip is weld between arriving the projection.
In above-mentioned technical proposal, the welding manner is pb-free solder.
In above-mentioned technical proposal, also including supporting plate, one end of the sheet metal is fixed on the supporting plate by locking part.
In above-mentioned technical proposal, metalwork is provided with the supporting plate, after the metalwork is located at point disengaging
Reset part, make the point depart from reset after with the metal pieces into contact so as to turn on the metalwork and locking part.
In above-mentioned technical proposal, also including compressing tablet, one end of the compressing tablet is fixed on the supporting plate by the locking part,
And the compressing tablet extrudes the sheet metal to the supporting plate direction.
In above-mentioned technical proposal, the sheet metal is copper sheet.
In above-mentioned technical proposal, the sheet metal is bimetal leaf, in the bimetal leaf, is connected with the lightning protection component pin
The side for connecing is active layers, and opposite side is passive layer.
In above-mentioned technical proposal, an one-way check part is provided with, cooling resets after preventing the sheet metal high temperature deformation.
In above-mentioned technical proposal, the sheet metal is memory metal.
In above-mentioned technical proposal, an one-way check part is provided with, cooling resets after preventing the sheet metal high temperature deformation.
The beneficial effects of the utility model are：
When the 1st, there is power frequency overcurrent, can rapidly start hot release unit；
2nd, hot release unit is threaded off thoroughly, and scolding tin wire drawing adhesion phenomenon will not occur；
When the 3rd, there is excess surge impact, hot release unit starts, and points out lightning protection device to damage；
4th, the present apparatus accomplishes leadless environment-friendly completely, and that thoroughly terminates hot release unit has the lead epoch；
5th, welding procedure can automated production, improve production efficiency, reduction labor cost.
Brief description of the drawings
Fig. 1 be in the hot release unit of prior art hot dropout pin without departing from when structural representation；
Fig. 2 is the structural representation after hot dropout pin departs from the hot release unit of prior art；
Fig. 3 is that the state that scolding tin wire drawing phenomenon occurs after hot dropout pin departs from the hot release unit of prior art is illustrated
Figure；
Fig. 4 is the overlooking the structure diagram of the utility model sheet metal；
Fig. 5 is the side structure schematic view of the utility model sheet metal；
Fig. 6 be the hot release unit of the utility model embodiment one without departing from when structural representation；
Fig. 7 is the structural representation after the hot release unit of the utility model embodiment one departs from；
Fig. 8 be the hot release unit of the utility model embodiment two without departing from when structural representation；
Fig. 9 is the structural representation after the hot release unit of the utility model embodiment two departs from；
Figure 10 be the hot release unit of the utility model embodiment three without departing from when structural representation；
Figure 11 is the structural representation after the hot release unit of the utility model embodiment three departs from.
In figure, 1, sheet metal；2nd, point；3rd, it is raised；4th, lightning protection component pin；5th, Pb-free solder；6th, supporting plate；7th, lock
Part；8th, metalwork；9th, compressing tablet；10th, active layers；11st, passive layer；12nd, one-way check part；30th, fuse；31st, high-temperature region；32nd, add
Warm area；33rd, diverging portion.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The lightning protection device body device being mentioned herein refers to apply the Zinc-oxide piezoresistor on low-tension supply class lightning protection device
Or ceramic gas discharge tube or the series connection multiple device of the two.
The hot release unit being mentioned herein, also referred to as thermal release device or thermal stabilization apparatus, are that power supply class lightning protection device is necessary
The safety device of the safety requirement of outfit.
As shown in FIG. 4,5,6, 7, a kind of hot release unit of lightning protection device of power supply class, including sheet metal 1, the sheet metal 1
One end is fixed, and the other end of the sheet metal 1 is provided with the point 2 of pointed shape, and the surface area of point 2 is small, and
Raised 3 are provided with the point 2, the projection 3 is obtained by the punch forming of sheet metal 1；The sheet metal 1 bends and by the point
Welded with lightning protection component pin 4 end 2；Wherein, it is weld between the tip of the sheet metal 1 arrives described raised 3.The metal
Piece 1 is copper sheet.
Wherein, the welding manner is pb-free solder.The use of pb-free solder meets environmental requirement.Made in pb-free solder
Pb-free solder 5 its fusing point is than there is the high of lead welding tin, then Pb-free solder 5 is melted the temperature for being accomplished by more increasing.
Wherein, also one end of the sheet metal 1 is fixed on the supporting plate 6 by locking part 7 including supporting plate 6.Locking part
7 is compacting copper rivet.
Wherein, metalwork 8 is provided with the supporting plate 6, the metalwork 8 is located at the reset after the point 2 departs from
Part, makes the point 2 be contacted with the metalwork 8 so as to turn on the metalwork 8 and locking part 7 after departing from reset.Gold
Category part 8 is fastener, as remote signalling contact, there is provided normally opened or normally closed signal, allows user to understand working condition.
Wherein, also including compressing tablet 9, one end of the compressing tablet 9 is fixed on the supporting plate 6 by the locking part 7, and should
Compressing tablet 9 extrudes the sheet metal 1 to the direction of the supporting plate 6.Compressing tablet 9 is steel compressing tablet in the present embodiment, is that the offer of sheet metal 1 is de-
Required external force during from action（Auxiliary force）.
The heat of embodiment one departs from the course of work：
1st, without departing from state
After the release unit is connected with lightning protection component, without departing from state.
As shown in Figure 6：Sheet metal 1 is welded by Pb-free solder 5 with lightning protection component pin 4 and connected, and is sheeted 9 compactings.Gold
Category piece 1 is not connected with metalwork 8, and metalwork 8 is not connected with locking part 7.
2nd, disengaged position
During generation power frequency overcurrent, the release unit is disengaged with lightning protection device.
As shown in Figure 7：By lightning protection device pin, when flowing through sheet metal 1, the Pb-free solder 5 of weld melts power frequency overcurrent
Change and loosen, the sheet metal 1 for being sheeted 9 compactings is moved down, contacted with metalwork 8, turn on metalwork 8 and locking part 7, complete thorough
Bottom disengaging action, and without wire drawing.
As shown in Figure 8,9, embodiment two, the sheet metal 1 is bimetal leaf, in the bimetal leaf, with the lightning protection device
The side of the connection of part pin 4 is active layers 10, and opposite side is passive layer 11.
Wherein, an one-way check part 12 is provided with, cooling resets after preventing the high temperature deformation of the sheet metal 1.
As shown in Figure 10,11, embodiment three, the sheet metal 1 is memory metal.
Wherein, an one-way check part 12 is provided with, cooling resets after preventing the high temperature deformation of the sheet metal 1.
Bimetal leaf 1 and memory metal in the above embodiments two and embodiment three are all have to reach uniform temperature meeting
Deform upon, it is possible to do not needing external force（Compressing tablet 9）Auxiliary under departed from.It is fallen after rise of course for temperature is avoided
Deformation afterwards recovers, it is necessary to set one-way check part 12 to prevent it from contacting conducting with lightning protection device pin again.One-way check part
12 structure belongs to prior art, will not be repeated here.
Operation principle of the present utility model：The linea angulata at raised 3 tips is fuse 30, the front end of fuse 30（That is weld）Be with
The position of the welding of lightning protection component pin 4, the surface area of the rear end of fuse 30 is gradually open to broaden.Due to the point 2 and raised 3,
Sophisticated building-up effect and heat energy the tip building-up effect of electric current are make use of, tip aggregation amount of heat can be made.The fuse 30 will
Point 2 is divided into the high-temperature region 31 positioned at the front end of fuse 30, the heating region 32 positioned at fuse 30 and positioned at the rear end of fuse 30
Diverging portion 33.
When there is power frequency overcurrent, power frequency overcurrent by lightning protection component pin 4 and high-temperature region 31 be welded to connect to
Lower transmission, but the area and contact surface of high-temperature region 31 are far smaller than the solder side of lightning protection component pin 4 so that and power frequency overcurrent is passed through
When, because electric current tip concentration effect, the current path for flowing through high-temperature region 31 diminishes suddenly, and line resistive is big, current work so that
The temperature of high-temperature region 31 rises rapidly.And now, influenceed by power frequency overcurrent, lightning protection component also starts heating in itself, and heat leads to
Cross lightning protection component pin 4 to be transmitted downwards with being welded to connect for high-temperature region 31, as the area and contact surface of high-temperature region 31 are remote
Much smaller than the solder side of lightning protection component pin 4, because heat tip concentration effect so that heat gathers in high-temperature region 31.
In order to the temperature for ensureing high-temperature region 31 is enough to melt（Temperature need to be more than 260 DEG C）The Pb-free solder 5 in the region is simultaneously
Kept for the regular hour thoroughly melted to ensure scolding tin, at the tip of sheet metal 1, there is provided the projection 3 of fuse 30, i.e., by punching press
Male and fomale(M＆F) heating region 32 afterwards, raised the 3 of the region so that the heat or electric current for flowing through, it is required to by fuse 30, and because molten
The acute angle cutting-edge structure of line 30, heat is formed herein and is gathered again, and heat energy spreads to high-temperature region 31 and diverging portion 33 respectively.Expanding
In day labor journey, insulation, the effect of heating are generated to high-temperature region 31, making the temperature of high-temperature region 31 there can be the guarantor of certain hour
Hold；And diverging portion 33 can then go down unnecessary temperature or current spread.
Now, high-temperature region 31 is to have the high temperature for melting Pb-free solder 5 enough, there has also been the condition for maintaining high temperature, is made
Obtain the condition that copper sheet possesses and lightning protection component pin 4 thoroughly departs from.
And the welding of high-temperature region 31 and lightning protection device pin, using SMD welding, and because the limited area of high-temperature region 31,
Allow that soldering tin amount during welding is controlled, substantially increase production efficiency.
Pb-free solder 5 is used in high-temperature region 31, environmental issue is solved.
Use Pb-free solder 5, and Pb-free solder 5 because not leaded in high-temperature region 31, viscosity is poor, will not depart from
The phenomenon of wire drawing.
Because the temperature of high-temperature region 31 can be kept for the regular hour more than the fusing point of Pb-free solder 5, it is possible to really
Protect the entry condition of disengaging action.
It is as follows, it is two kind situations of the surge through overheat release unit：
1st, the surge in lightning protection component protection magnitude through overheating during release unit, be failure to actuate, and heat will not occur de- by the device
From.Because surge energy now cannot be formed in the high-temperature region 31 and heating region 32 of sheet metal 1 can be by Pb-free solder 5
The high temperature of melting, is not enough to start hot release unit.
When the 2nd, there is excess surge, hot release unit starts.
Although the excess surge elapsed time is very short, due to the powerful energy that surge is carried in itself, in the metal for setting
The high-temperature region 31 of piece 1 forms high temperature, and is persistently done work in heating region 32, continues to heat up, and melts scolding tin, reaches the mesh of disengaging
's.
The action process of hot release unit during as excess surge impact, course of work during with generation power frequency overcurrent is complete
It is complete consistent, repeat no more here.
Embodiment above is to indicate that rather than limitation the utility model, therefore all according to the utility model patent application
The equivalent change or modification that method described in scope is done, is included in the utility model patent claim.
Claims (10)
1. the hot release unit of lightning protection device of a kind of power supply class, it is characterised in that：Including sheet metal, one end of the sheet metal is consolidated
Fixed, the other end of the sheet metal is provided with the point of pointed shape, and projection is provided with the point；The sheet metal leads to
The point is crossed to be welded with lightning protection component pin；Wherein, it is weld between the projection is arrived at the sheet metal tip.
2. the hot release unit of lightning protection device of a kind of power supply class according to claim 1, it is characterised in that：The welding manner
It is pb-free solder.
3. the hot release unit of lightning protection device of a kind of power supply class according to claim 1, it is characterised in that：Also include supporting plate,
One end of the sheet metal is fixed on the supporting plate by locking part.
4. the hot release unit of lightning protection device of a kind of power supply class according to claim 3, it is characterised in that：On the supporting plate
Be provided with metalwork, the metalwork is located at the reset part after the point departs from, make the point depart from reset after with
The metal pieces into contact is so as to turn on the metalwork and locking part.
5. the hot release unit of lightning protection device of a kind of power supply class according to claim 3, it is characterised in that：Also include compressing tablet,
One end of the compressing tablet is fixed on the supporting plate by the locking part, and the compressing tablet by the sheet metal to the supporting plate side
To extruding.
6. the hot release unit of lightning protection device of a kind of power supply class according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that：
The sheet metal is copper sheet.
7. the hot release unit of lightning protection device of a kind of power supply class according to claim 1 or 2 or 3 or 4, it is characterised in that：Institute
Sheet metal is stated for bimetal leaf, in the bimetal leaf, the side being connected with the lightning protection component pin is active layers, and opposite side is
Passive layer.
8. the hot release unit of lightning protection device of a kind of power supply class according to claim 7, it is characterised in that：It is provided with one unidirectional
Block piece, cooling resets after preventing the sheet metal high temperature deformation.
9. the hot release unit of lightning protection device of a kind of power supply class according to claim 1 or 2 or 3 or 4, it is characterised in that：Institute
Sheet metal is stated for memory metal.
10. the hot release unit of lightning protection device of a kind of power supply class according to claim 8, it is characterised in that：It is provided with one single
To block piece, cooling resets after preventing the sheet metal high temperature deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219330.0U CN206211511U (en) | 2016-11-14 | 2016-11-14 | A kind of lightning protection device hot release unit of power supply class |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219330.0U CN206211511U (en) | 2016-11-14 | 2016-11-14 | A kind of lightning protection device hot release unit of power supply class |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211511U true CN206211511U (en) | 2017-05-31 |
Family
ID=58752554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219330.0U Expired - Fee Related CN206211511U (en) | 2016-11-14 | 2016-11-14 | A kind of lightning protection device hot release unit of power supply class |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655091A (en) * | 2016-11-14 | 2017-05-10 | 深圳市瑞隆源电子有限公司 | Power supply type lightning protection device thermal disengagement apparatus |
-
2016
- 2016-11-14 CN CN201621219330.0U patent/CN206211511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655091A (en) * | 2016-11-14 | 2017-05-10 | 深圳市瑞隆源电子有限公司 | Power supply type lightning protection device thermal disengagement apparatus |
| CN106655091B (en) * | 2016-11-14 | 2019-07-09 | 深圳市瑞隆源电子有限公司 | A kind of hot release unit of lightning protection device of power supply class |
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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 |
Granted publication date: 20170531 Termination date: 20201114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |