CN209982052U - Surge protector - Google Patents
Surge protector Download PDFInfo
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- CN209982052U CN209982052U CN201920391783.9U CN201920391783U CN209982052U CN 209982052 U CN209982052 U CN 209982052U CN 201920391783 U CN201920391783 U CN 201920391783U CN 209982052 U CN209982052 U CN 209982052U
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- sliding block
- mounting plate
- surge protector
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Abstract
The utility model discloses a surge protector, which comprises a shell, a bottom shell, a piezoresistor, a current bar, a sliding block, an elastic piece and a fixing piece; a mounting plate is arranged in the bottom shell; the piezoresistor is fixed on one side of the mounting plate; a slide block is arranged on the other side of the mounting plate; a first electrode is arranged on one side end face of the piezoresistor, and a through hole for embedding the first electrode is arranged on the mounting plate; the fixing piece is positioned on the other side of the mounting plate and welded on the first electrode to form a thermal trip point; a sliding rail is arranged between the sliding block and the mounting plate, and the sliding block slides along the mounting plate in a horizontal straight line; the side end of the sliding block is provided with an installation groove; one end of the elastic piece is positioned in the mounting groove, and the other end of the elastic piece is contacted with the side end of the bottom shell; the inner side of the sliding block, which is contacted with the mounting plate, is provided with a stop structure for clamping the fixing piece; the current bar is fixed with the sliding block; the piezoresistor is provided with a second electrode, and a third electrode is arranged below the bottom shell; the upper end and the lower end of the current bar are respectively contacted with the second electrode and the third electrode; the shell is sleeved outside the bottom shell; the utility model discloses better safety protection effect has.
Description
Technical Field
The utility model belongs to mobile base station protection field, especially a surge protector.
Background
With the rapid development of the communication industry, the rapid development of mobile terminals and mobile internet services is providing new challenges for the evolution of mobile networks, and especially with the application of 4G networks and the research and development of 5G networks, the traditional mobile base station technology and the deployment mode cannot meet the increasingly vigorous data service requirements of people. Mobile base stations are showing miniaturization trend, and more miniaturization base station products with deep coverage, easy deployment and low energy consumption are continuously emerging.
Small-size and miniature basic station are because the volume is less, and inside lightning protection requires more, and along with electronic component more and more to miniaturization, integrate the development, it is limited in area space to arrange the component circuit board to the high density. In order to meet the requirements of integral integration, volume miniaturization and power maximization of a power supply, the volume of the lightning arrester is smaller, and the original track-mounted lightning arrester cannot meet the requirements of the prior art and the size.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a surge protector to realize the safety protection behind the thunderbolt.
Realize the utility model discloses the technical solution of purpose does:
a surge protector comprises a shell, a bottom shell, a piezoresistor, a current bar, a sliding block, an elastic piece and a fixing piece;
a mounting plate is arranged in the bottom shell; the piezoresistor is fixed on one side of the mounting plate; a slide block is arranged on the other side of the mounting plate; a first electrode is arranged on one side end face of the piezoresistor, a through hole is arranged on the mounting plate, and the first electrode is embedded into the through hole; the fixing piece is positioned on the other side of the mounting plate, is welded on the first electrode and forms a thermal trip point with the first electrode; a sliding rail is arranged between the sliding block and the mounting plate, and the sliding block slides along the mounting plate in a horizontal straight line; the side end of the sliding block is provided with an installation groove; one end of the elastic piece is positioned in the mounting groove, and the other end of the elastic piece is contacted with the side end of the bottom shell; the inner side of the sliding block, which is contacted with the mounting plate, is provided with a stopping structure, and the fixing part is clamped by the stopping structure, so that the elastic part is in a compressed state; the current bar is fixed with the sliding block; the piezoresistor is provided with a second electrode, and a third electrode is arranged below the bottom shell; the upper end and the lower end of the current bar are respectively contacted with the second electrode and the third electrode; the shell is sleeved outside the bottom shell.
Compared with the prior art, the utility model, it is showing the advantage:
(1) the utility model discloses a surge protector transships through piezo-resistor and causes the heat conduction to the good hot trip point of welding after overheated, and after reaching the uniform temperature, hot trip point melts, breaks off the return circuit under the elastic component effect, the effectual safety protection after having realized the thunderbolt.
(2) The utility model discloses a surge protector, hot trip point breaks away from completely under the elastic component effect, and the unable complete segregation of tin of hanging cuts off and the arcing that causes is on fire when having avoided the dropout, has better security.
(3) The utility model discloses a surge protector, dropout compact structure, the problem of solution small space dropout point welding difficulty that can be fine has simplified technology, has reduced the production degree of difficulty and manufacturing cost.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is the overall internal structure diagram of the present invention.
Fig. 2 is a front view of the whole internal structure of the present invention.
Fig. 3 is a schematic diagram of the overall explosion of the present invention.
Fig. 4 is a schematic view of the front perspective structure of the slider of the present invention.
Fig. 5 is a schematic view of the rear-view three-dimensional structure of the slider of the present invention.
Fig. 6 is a schematic diagram of the three-dimensional structure of the varistor of the present invention.
Fig. 7 is a schematic view of the three-dimensional structure of the bottom casing of the present invention.
Detailed Description
For the purpose of explaining the technical solution and technical purpose of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a surge protector includes a housing 1, a bottom case 2, a varistor 3, a current bar 5, a slider 6, an elastic element 7, and a fixing element 8;
the bottom shell 2 is internally provided with a mounting plate 20; the piezoresistor 3 is fixed on one side of the mounting plate 20; the other side of the mounting plate 20 is provided with a slide block 6; a first electrode 31 is arranged on one side end face of the piezoresistor 3, a through hole 23 is arranged on the mounting plate 20, and the first electrode 31 is embedded into the through hole 23; the fixing piece 8 is positioned at the other side of the mounting plate 20 and is welded on the first electrode 31 to form a thermal trip point with the first electrode 31; a sliding rail is arranged between the sliding block 6 and the mounting plate 20, so that the sliding block 6 can horizontally and linearly slide along the mounting plate 20; the side end of the sliding block 6 is provided with a mounting groove 64; one end of the elastic element 7 is positioned in the mounting groove 64, the other end of the elastic element is contacted with the side end of the bottom shell 2, and the extension direction of the elastic element 7 is the horizontal direction; a stopping structure is arranged on the inner side of the sliding block 6, which is in contact with the mounting plate 20, and the fixing part 8 is clamped by the stopping structure, so that the elastic part 7 is in a compressed state, and the sliding block 6 cannot move towards the extension direction of the elastic part 7; the current bar 5 is fixed with the sliding block 6; the piezoresistor 3 is provided with a second electrode 32, and a third electrode 4 is arranged below the bottom shell 2; the upper end and the lower end of the current bar 5 are respectively contacted with the second electrode 32 and the third electrode 4; the shell 1 is sleeved outside the bottom shell 2 to protect components in the bottom shell 2 and meanwhile enable the sliding block 6 to be attached to the mounting plate 20.
Furthermore, a stop rib 22 is respectively arranged at the upper part and the lower part inside the side end of the bottom shell 2; the upper end and the lower end of the sliding block 6, which are close to the side end of the bottom shell 2, are respectively provided with a swinging connecting rod 63; the swing link 63 is inclined toward the stopper rib 22 side; the two swing connecting rods 63 are respectively contacted with the upper end and the lower end of the current bar 5; the stop rib 22 provides reverse thrust to the swing connecting rod 63, so that the swing connecting rod fully contacts the current bar 5, and the current bar 5 is firmly contacted with the second electrode 32 and the third electrode 4.
As an embodiment, the swing link 63 and the slider 6 are integrally formed, and may be made of a plastic material, and have a certain elasticity, and the side of the bottom of the swing link 63 near the stop rib 22 is fixedly connected to the slider 6; a clearance groove is formed between the side, far away from the stop rib 22, of the bottom of the swing connecting rod 63 and the sliding block 6, a protrusion 631 is arranged at the bottom, and when the stop rib 22 pushes the swing connecting rod 63, the protrusion 631 can limit the rotation angle of the swing connecting rod 63, so that the swing connecting rod 63 is prevented from inclining in the opposite direction.
In another embodiment, the swing link 63 is connected to the slider 6 through a rotating shaft.
Further, the elastic member 7 is a spring or elastic rubber.
In one embodiment, the upper and lower inner sides of the sliding block 6 contacting the mounting plate 20 are respectively provided with a positioning hook 62; the positioning hook 62 hooks the fixing member 8, so that the sliding block 6 cannot move in the extending direction of the elastic member 7. The positioning hooks 62 constitute stop members.
In another embodiment, a longitudinal positioning plate is disposed on the inner side of the sliding block 6 contacting the mounting plate 20, and the positioning plate contacts the side end of the fixing member 8, so that the sliding block 6 cannot move in the extending direction of the elastic member 7. The positioning plate constitutes a stopper member.
In some embodiments, the slide rails are disposed on the mounting plate 20.
A transverse positioning rib 21 is respectively arranged on the upper side and the lower side of the other side of the mounting plate 20, and a sliding groove 61 is respectively arranged on the upper side and the lower side of the inner side of the sliding block 6, which is in contact with the mounting plate 20; the sliding groove 61 and the positioning rib 21 are matched to form a horizontal linear sliding mechanism. The positioning ribs 21 form a sliding rail, and a guide groove of the fixing member 8 is formed between the two positioning ribs 21.
In other embodiments, the slide rails are provided on the slide 6.
A transverse sliding groove is respectively arranged at the upper part and the lower part of the other side of the mounting plate 20; the upper and lower inner sides of the sliding block 6 contacting with the mounting plate 20 are respectively provided with a sliding rail, and the sliding groove and the sliding rail are matched to form a horizontal linear sliding mechanism.
In a preferred embodiment, a welding hole is formed in the middle of the fixing member 8 to facilitate spot welding of the fixing member 8 and the first electrode 31.
Further, the outside both sides of drain pan 2 still are equipped with the buckle respectively, 1 both sides bottom of shell still is equipped with the card hole, and the buckle is connected shell 1 and drain pan 2 with the cooperation of card hole, easy dismounting.
Furthermore, the surge protector of the utility model is also provided with a failure alarm mechanism; the failure alarm mechanism comprises a first remote signaling electrode 9 and a second remote signaling electrode 10;
the first remote signaling electrode 9 and the second remote signaling electrode 10 are arranged on the bottom shell 2; the upper end of the second remote signaling electrode 10 is in an upward bent arch shape; the lower end of the sliding block 6 is in pressure joint with the upper end of the second remote signaling electrode 10, so that the end part of the second remote signaling electrode 10 is in full contact with the first remote signaling electrode 9, and the two remote signaling electrodes are in a connected state; after the thermal tripping point is tripped, the sliding block 6 slides, the second remote signaling electrode 10 is not pressed, the first remote signaling electrode 9 and the second remote signaling electrode 10 are separated, and a signal is output outwards to give an alarm.
Furthermore, a window is arranged on the shell 1, and the outer side of the sliding block 6 is in a warning color; after the thermal trip point is tripped, the sliding block 6 slides to the window under the action of the elastic piece 7, and the warning color on the sliding block 6 can be observed from the window, which indicates that the protector has failed.
Preferably, the warning color is red, so that a good and striking warning effect is achieved.
In the surge protector of the utility model, the shell 1 and the bottom shell 2 are both made of industrial flame-retardant insulating materials, and because the materials have the advantages of various shapes and impact resistance, the safe insulating electric performance between the materials and the circuit board and between the materials and the adjacent electronic components is ensured in the using process of the surge protector, the processability is good, and the surge protector is safe and reliable; during operation because lightning stroke excessive pressure discharges through piezo-resistor 3 in the circuit, piezo-resistor 3 leads to the good heat trip point of welding with the heat after leading to the fact overheated because of overloading, after reaching certain temperature, heat trip point soldering tin melts, mounting 8 and piezo-resistor 3's first electrode 31 separation, under the effect of elastic component 7, sliding block 6 drives current strip 5 and mounting 8 and slides along location muscle 21, current strip 5 and third electrode 4 and piezo-resistor 3's second electrode 32 separation, the disconnection return circuit, first remote signalling electrode 9 and second remote signalling electrode 10 separation simultaneously, outside output signal, the display of shell 1 window is red, it has failed to show the protector.
Claims (10)
1. A surge protector is characterized by comprising a shell (1), a bottom shell (2), a piezoresistor (3), a current bar (5), a sliding block (6), an elastic piece (7) and a fixing piece (8);
a mounting plate (20) is arranged in the bottom shell (2); the piezoresistor (3) is fixed on one side of the mounting plate (20); a slide block (6) is arranged on the other side of the mounting plate (20); a first electrode (31) is arranged on one side end face of the piezoresistor (3), a through hole (23) is formed in the mounting plate (20), and the first electrode (31) is embedded into the through hole (23); the fixing piece (8) is positioned on the other side of the mounting plate (20), is welded on the first electrode (31), and forms a thermal tripping point with the first electrode (31); a sliding rail is arranged between the sliding block (6) and the mounting plate (20), and the sliding block (6) slides along the mounting plate (20) horizontally and linearly; the side end of the sliding block (6) is provided with a mounting groove (64); one end of the elastic piece (7) is positioned in the mounting groove (64), and the other end of the elastic piece is contacted with the side end of the bottom shell (2); a stopping structure is arranged on the inner side of the sliding block (6) contacted with the mounting plate (20), and the fixing piece (8) is clamped by the stopping structure, so that the elastic piece (7) is in a compressed state; the current bar (5) is fixed with the sliding block (6); a second electrode (32) is arranged on the piezoresistor (3), and a third electrode (4) is arranged below the bottom shell (2); the upper end and the lower end of the current bar (5) are respectively contacted with the second electrode (32) and the third electrode (4); the shell (1) is sleeved outside the bottom shell (2).
2. The surge protector as claimed in claim 1, wherein a stop rib (22) is provided at upper and lower positions inside the side end of the bottom case (2); the upper end and the lower end of the side end, close to the bottom shell (2), of the sliding block (6) are respectively provided with a swinging connecting rod (63); the swing connecting rod (63) inclines towards the stop rib (22); the two swing connecting rods (63) are respectively contacted with the upper end and the lower end of the current bar (5); the stop rib (22) gives reverse thrust to the swing connecting rod (63), so that the swing connecting rod (63) is fully contacted with the current bar (5), and the current bar (5) is firmly contacted with the second electrode (32) and the third electrode (4).
3. The surge protector of claim 2, wherein the swing connecting rod (63) is integrally formed with the sliding block (6), and the side of the bottom of the swing connecting rod (63) close to the stop rib (22) is fixedly connected with the sliding block (6); a clearance groove is arranged between the side of the bottom of the swing connecting rod (63) far away from the stop rib (22) and the sliding block (6), and a bulge (631) for avoiding the swing connecting rod (63) from inclining in the opposite direction is arranged at the bottom.
4. The surge protector of claim 2, wherein the oscillating link (63) is connected to the slider (6) by a rotating shaft.
5. The surge protector of claim 1, further comprising a failure warning mechanism; the failure alarm mechanism comprises a first remote signaling electrode (9) and a second remote signaling electrode (10);
the first remote signaling electrode (9) and the second remote signaling electrode (10) are arranged on the bottom shell (2); the upper end of the second remote signaling electrode (10) is in an upward bent arch shape; the lower end of the sliding block (6) is in pressure joint with the upper end of the second remote signaling electrode (10), so that the end part of the second remote signaling electrode (10) is in full contact with the first remote signaling electrode (9), and the two remote signaling electrodes are in a connected state; the first remote signaling electrode (9) and the second remote signaling electrode (10) are separated, and alarm signals are output outwards.
6. The surge protector of claim 1, wherein a window is arranged on the housing (1), and the outer side of the sliding block (6) is in a warning color; after the thermal trip point is tripped, the sliding block (6) slides to the window under the action of the elastic piece (7).
7. The surge protector of claim 1, wherein the inner side of the sliding block (6) contacting the mounting plate (20) is provided with a positioning hook (62) at the upper and lower sides; the positioning hook (62) hooks the fixing piece (8), and the positioning hook (62) forms a stop component.
8. The surge protector according to claim 1, wherein a longitudinal positioning plate is provided on the inner side of the slider (6) contacting the mounting plate (20), the positioning plate contacting the side end of the fixing member (8), the positioning plate constituting the stopper member.
9. The surge protector of claim 1, wherein the slide rails are provided on a mounting plate (20).
10. The surge protector of claim 1, wherein the slide rails are provided on a slider (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391783.9U CN209982052U (en) | 2019-03-26 | 2019-03-26 | Surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391783.9U CN209982052U (en) | 2019-03-26 | 2019-03-26 | Surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209982052U true CN209982052U (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920391783.9U Active CN209982052U (en) | 2019-03-26 | 2019-03-26 | Surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209982052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769533A (en) * | 2020-09-01 | 2020-10-13 | 菲尼克斯亚太电气（南京）有限公司 | Surge protector |
| CN111933370A (en) * | 2020-09-27 | 2020-11-13 | 菲尼克斯亚太电气（南京）有限公司 | Surge protector |
-
2019
- 2019-03-26 CN CN201920391783.9U patent/CN209982052U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769533A (en) * | 2020-09-01 | 2020-10-13 | 菲尼克斯亚太电气（南京）有限公司 | Surge protector |
| CN111933370A (en) * | 2020-09-27 | 2020-11-13 | 菲尼克斯亚太电气（南京）有限公司 | Surge protector |
| CN111933370B (en) * | 2020-09-27 | 2021-01-05 | 菲尼克斯亚太电气（南京）有限公司 | Surge protector |
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