CN117200149B - Over-temperature protection solid-state relay - Google Patents
Over-temperature protection solid-state relay Download PDFInfo
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- CN117200149B CN117200149B CN202311183035.9A CN202311183035A CN117200149B CN 117200149 B CN117200149 B CN 117200149B CN 202311183035 A CN202311183035 A CN 202311183035A CN 117200149 B CN117200149 B CN 117200149B
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- control line
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- 239000007787 solid Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000007480 spreading Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The invention discloses an over-temperature protection solid-state relay, which belongs to the technical field of relays, wherein an input control line is supported by a control line support, a cutter is arranged above the input control line, the cutter is vertically and slidably arranged in a vertical chute of the cutter holder, the cutter holder and the control line support are fixed in a base, the upper end of the cutter is fixedly connected with a vertical rod, the vertical rod is slidably arranged in a horizontal chute formed in a pressing rod, the upper end of the vertical rod is fixedly provided with an uplink limiting piece and a downlink limiting piece, the uplink limiting piece and the downlink limiting piece are used for limiting the axial direction of the pressing rod, one end of the pressing rod, far away from the horizontal chute, is connected with a rotation triggering assembly, and when the temperature of a relay body is over-high, the rotation triggering assembly can drive the pressing rod to rotate, and the pressing rod drives the cutter to move downwards through the vertical rod so as to cut off the input control line. The device can timely protect the solid-state relay in an over-temperature state so as to prevent the relay damage caused by fire spreading.
Description
Technical Field
The invention belongs to the technical field of relays, and particularly relates to an over-temperature protection solid-state relay.
Background
The solid state relay is a new type contactless switching device composed entirely of solid state electronic components, which can achieve the purpose of switching on and off the circuit without contact and spark by utilizing the switching characteristics of the electronic components. The solid state relay is connected with the battery pack and the controller at the same time. When the relay is in a direct current short circuit state, the circuit is continuously high in temperature and easy to cause combustion, a burnt cable is easy to cause damage of the relay, and the related device is not available in the prior art for protecting the solid state relay under the condition.
Disclosure of Invention
Therefore, the invention aims to provide an over-temperature protection solid-state relay which can be timely protected in an over-temperature state so as to prevent the relay damage problem caused by fire spreading.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an overtemperature protection solid-state relay, includes the relay body, with the input control line of relay body coupling, the input control line is supported through the control line support, the top of input control line is provided with the cutter, the vertical sliding of cutter sets up in the vertical spout of cutter holder, cutter holder and control line support are fixed in the base, the upper end fixedly connected with vertical pole of cutter, vertical pole slides and sets up in the horizontal spout of seting up on the depression bar, the upper end of vertical pole is fixed with ascending locating part and descending locating part, ascending locating part and descending locating part are used for spacing the axial of depression bar, horizontal spout one end is kept away from to the depression bar is connected with rotates the trigger subassembly, when the temperature of relay body is too high, it can drive the depression bar rotation to rotate the trigger subassembly, the depression bar passes through vertical pole and drives the cutter downward displacement in order to cut off the input control line.
Further, rotate the trigger assembly and include the fuse, first connecting rod, first round pin axle, connecting rod support, second connecting rod, second round pin axle, third round pin axle, rotate the sleeve, rotate the support, reset torsional spring, first bevel gear, second bevel gear and pivot, first round pin axle is fixed on the connecting rod support, the middle part of first connecting rod articulates with first round pin axle, the one end and the relay body coupling of fuse, the other end fixed connection of fuse is to the one end of first connecting rod, the other end of first connecting rod articulates with the one end of second connecting rod through the second round pin axle, the other end of second connecting rod articulates with the third round pin axle fixed on the rotation sleeve, the rotation sleeve rotates the cover and establishes on the rotation support, the upside at the relay body is installed to the rotation support, reset torsional spring's both ends are connected with rotation sleeve and rotation support respectively, coaxial coupling has first bevel gear on the rotation sleeve, first and second bevel gear mesh, the second bevel gear is perpendicular with the axis of first bevel gear, the coaxial coupling of second bevel gear is to the axis of first bevel gear, the second bevel gear is connected to the pivot through the pivot and is connected with the depression bar.
Further, a rotary support is fixed on the base, and the rotating shaft is rotationally connected with the rotary support.
Further, mounting holes are uniformly formed in the second connecting rod at intervals along the length direction of the second connecting rod, and the second pin shaft is rotatably arranged in the mounting holes.
Further, the depression bar includes first branch, second branch and horizon bar, first branch and second branch are connected and are the L type, the one end that first branch was kept away from to the second branch is connected with the horizon bar, horizontal spout is seted up on the horizon bar of depression bar.
Further, a limiting block is integrally arranged on the side face of the cutter, a tension spring is connected between the limiting block and the cutter seat, and the tension spring provides downward pretension force for the limiting block.
Further, an end plate is mounted at the upper end of the vertical sliding groove, and the end plate is detachably connected with the cutter seat.
Further, a slot is formed in the upper end of the control line support, the slot corresponds to the cutter, a channel for the input control line to pass through is formed in the control line support along the axial direction of the input control line, and the channel penetrates through the slot.
Further, a protective shell is arranged on the outer side of the relay body, and a plurality of radiating grooves are formed in the surface of the protective shell.
The invention has the beneficial effects that:
according to the over-temperature protection solid-state relay disclosed by the invention, the cutter is arranged above the input control line, when the temperature of the relay body is over high, the rotation triggering assembly can drive the pressing rod to rotate, and the pressing rod drives the cutter to move downwards through the vertical rod so as to cut off the input control line, so that the solid-state relay can be protected in time in an over-temperature state, and the problem of relay damage caused by fire spreading on the input control line is prevented.
According to the solid-state relay disclosed by the invention, the action is triggered by rotating the trigger component, at the moment, the pressing rod rotates to drive the cutter to move downwards through the vertical rod so as to cut off the input control line, the cutting route can be ensured, and the solid-state relay adopts a pure mechanical structure and has good stability.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the apparatus of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic view of the meshing of a first bevel gear and a second bevel gear;
fig. 5 is a schematic diagram showing the cooperation of the cutter and the cutter holder.
The figures are marked as follows: the relay body 1, an input control wire 2, a control wire support 3, a cutter 4, a cutter holder 5, a vertical chute 6, a base 7, a vertical rod 8, a compression rod 9, a horizontal chute 10, an upward limit piece 11, a downward limit piece 12, a fuse link 13, a first connecting rod 14, a first pin 15, a connecting rod support 16, a second connecting rod 17, a second pin 18, a third pin 19, a rotating sleeve 20, a rotating support 21, a reset torsion spring 22, a first bevel gear 23, a second bevel gear 24, a rotating shaft 25, a rotating support 26, a mounting hole 27, a first support rod 28, a second support rod 29, a horizontal rod 30, a limit block 31, a tension spring 32, an end plate 33, a slot 34, a channel 35, a protective shell 36 and a heat dissipation groove 37.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 5, an over-temperature protection solid-state relay comprises a relay body 1 and two input control lines 2 connected with the relay body 1, wherein the two input control lines 2 are positioned on the same side of the relay body 1, the two input control lines 2 are respectively connected to input control ends of the relay body 1, and two outer sides of the relay body 1 are connected with output controlled ends.
Wherein, the input control line 2 is supported through the control line support 3, makes its at least partial level that keeps, and the top of input control line 2 is provided with cutter 4, and the sword arris of cutter 4 is perpendicular with input control line 2, and cutter 4 vertical slip setting can be along vertical removal in order to realize the cutting in the vertical spout 6 of cutter holder 5. The cutter holder 5 and the control line support 3 are fixed in the base 7, the upper end fixedly connected with vertical pole 8 of cutter 4, vertical pole 8 slides and sets up in the horizontal spout 10 of seting up on depression bar 9, the upper end of vertical pole 8 is fixed with upward limiter 11 and descending limiter 12, upward limiter 11 and descending limiter 12 are used for spacing the axial of depression bar 9, depression bar 9 keeps away from horizontal spout 10 one end and is connected with the rotation trigger subassembly, when the temperature of relay body 1 is too high, the rotation trigger subassembly can drive depression bar 9 rotation, depression bar 9 drives cutter 4 downward displacement through vertical pole 8 in order to cut off input control line 2, in order to prevent the relay damage problem that the thermal power on the input control line 2 spread and arouses.
Specifically, in this embodiment of the present invention, the rotation triggering assembly includes a fuse wire 13, a first link 14, a first pin 15, a link support 16, a second link 17, a second pin 18, a third pin 19, a rotation sleeve 20, a rotation support 21, a reset torsion spring 22, a first bevel gear 23, a second bevel gear 24, and a rotation shaft 25, where the fuse wire 13 may be made of a high-temperature fusible material, the first pin 15 is fixed on the link support 16, and the middle part of the first link 14 is hinged to the first pin 15, so that the first link 14 may rotate around the first pin 15, one end of the fuse wire 13 is connected to the relay body 1, the other end of the fuse wire 13 is fixedly connected to one end of the first link 14, and two ends of the fuse wire 13 may be respectively connected in a detachable manner, and after the use, only the fuse wire 13 needs to be replaced.
Further, the other end of the first connecting rod 14 is hinged to one end of the second connecting rod 17 through a second pin shaft 18, the plane of the second connecting rod 17 is parallel to the plane of the first connecting rod 14, the other end of the second connecting rod 17 is hinged to a third pin shaft 19 fixed on a rotating sleeve 20, the axes of the first pin shaft 15, the second pin shaft 18 and the third pin shaft 19 are parallel to each other, but the axis of the rotating sleeve 20 is vertical, the rotating sleeve 20 is rotatably sleeved on a rotating support 21, the rotating support 21 is mounted on the upper side of the relay body 1, two ends of a reset torsion spring 22 are respectively connected with the rotating sleeve 20 and the rotating support 21, a first bevel gear 23 is coaxially connected to the rotating sleeve 20, the first bevel gear 23 is meshed with a second bevel gear 24, the second bevel gear 24 is perpendicular to the axis of the first bevel gear 23, the second bevel gear 24 is coaxially connected to a rotating shaft 25, and the rotating trigger assembly is connected with the pressing rod 9 through the rotating shaft 25.
Working principle: when the input control wire 2 of the solid-state relay is short-circuited and fires, the high temperature can blow the fuse wire 13, the lower end of the first connecting rod 14 breaks through the constraint of the fuse wire 13, under the prestress action of the reset torsion spring 22, the rotating sleeve 20 breaks loose the constraint of the first connecting rod 14 and the second connecting rod 17, so that the solid-state relay can rotate clockwise, the rotating sleeve 20 drives the first bevel gear 23 to rotate clockwise in the horizontal plane at the same time, the second bevel gear 24 rotates clockwise in a vertical plane under the meshing action, the second bevel gear 24 drives the rotating shaft 25 to rotate clockwise, so that the pressing rod 9 can be driven to deflect, the pressing rod 9 drives the cutter 4 to move downwards through the vertical rod 8 to cut off the input control wire 2, and the solid-state relay can be protected in time in the over-temperature state. The device adopts a pure mechanical structure and has better stability. By adopting the structure, the restoring torsion spring 22 is adopted to provide a pretension force, so that the force can be transmitted into the compression bar 9 instantly, and the input control line 2 can be cut off relatively quickly and quickly, so as to avoid accidents.
In this embodiment, be fixed with swivel support 26 on the base 7, pivot 25 is connected with swivel support 26 rotation, through setting up swivel support 26, can provide the support for pivot 25, guarantees the stability of depression bar 9 at the during operation.
In this embodiment, mounting holes 27 are uniformly spaced on the second connecting rod 17 along the length direction of the second connecting rod 17, and the second pin shaft 18 is rotatably disposed in the mounting holes 27, so that different mounting holes 27 can be selected according to the requirements of different fuse links 13; for example, if a longer fuse 13 is desired, then a closer mounting hole 27 to the lever 9 may be selected, and a longer fuse 13 may provide better sensitivity, but at a higher cost, and vice versa. For this purpose, a number of options may be provided to accommodate the need for fusible links 13 of different lengths.
In this embodiment, the compression bar 9 includes a first supporting rod 28, a second supporting rod 29 and a horizontal rod 30, the first supporting rod 28 and the second supporting rod 29 are connected to form an L shape, one end of the second supporting rod 29 away from the first supporting rod 28 is connected to the horizontal rod 30, the horizontal chute 10 is formed on the horizontal rod 30 of the compression bar 9, and by adopting the above structure, the compression bar 9 can better act on the cutter 4.
In this embodiment, a limiting block 31 is integrally disposed on a side surface of the cutter 4, a tension spring 32 is connected between the limiting block 31 and the cutter seat 5, the tension spring 32 provides a downward pretension force for the limiting block 31, the tension spring 32 can also provide a downward tension force for the cutter 4, and it is further ensured that the input control line 2 can be cut off.
In this embodiment, the end plate 33 is installed at the upper end of the vertical chute 6, and the end plate 33 is detachably connected with the cutter seat 5, and by providing the detachable end plate 33, the cutter 4 can be conveniently installed or detached, so as to facilitate maintenance.
In this embodiment, the upper end of the control wire support 3 is provided with the slot 34, the slot 34 corresponds to the cutter 4, the control wire support 3 is provided with the channel 35 for the input control wire 2 to pass through along the axial direction of the input control wire 2, the channel 35 penetrates through the slot 34, and by setting the slot 34, the cutter 4 can more conveniently enter the control wire support 3 to cut off the input control wire 2.
In this embodiment, the outside of relay body 1 is provided with protective housing 36, has seted up a plurality of heat dissipation grooves 37 on the surface of protective housing 36, can be convenient for dispel the heat to relay body 1, and fuse 13 is connected with protective housing 36, also can avoid fuse 13 direct and relay body 1 contact to lead to high temperature transmission to relay body 1.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides an overtemperature protection solid-state relay, includes the relay body, with the input control line of relay body coupling, its characterized in that, the input control line passes through the control line support and supports, the top of input control line is provided with the cutter, the vertical sliding of cutter sets up in the vertical spout of cutter holder, cutter holder and control line support are fixed in the base, the upper end fixedly connected with vertical pole of cutter, vertical pole slides and sets up in the horizontal spout of seting up on the depression bar, the upper end of vertical pole is fixed with upward locating part and descending locating part, upward locating part and descending locating part are used for carrying out spacingly to the axial of depression bar, horizontal spout one end is kept away from to the depression bar is connected with and rotates the trigger subassembly, when the temperature of relay body is too high, it can drive the depression bar rotation to rotate the trigger subassembly, the depression bar passes through vertical pole and drives the downward displacement in order to cut off the input control line.
2. The solid-state relay according to claim 1, wherein the rotation triggering component comprises a fuse wire, a first connecting rod, a first pin shaft, a connecting rod support, a second connecting rod, a second pin shaft, a third pin shaft, a rotation sleeve, a rotation support, a reset torsion spring, a first bevel gear, a second bevel gear and a rotation shaft, wherein the first pin shaft is fixed on the connecting rod support, the middle part of the first connecting rod is hinged with the first pin shaft, one end of the fuse wire is connected with the relay body, the other end of the fuse wire is fixedly connected with one end of the first connecting rod, the other end of the first connecting rod is hinged with one end of the second connecting rod through the second pin shaft, the other end of the second connecting rod is hinged with the third pin shaft fixed on the rotation sleeve, the rotation sleeve is rotatably sleeved on the rotation support, the rotation support is arranged on the upper side of the relay body, two ends of the reset torsion spring are respectively connected with the rotation sleeve and the rotation support, the rotation sleeve is coaxially connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the first bevel gear is coaxially connected with the second bevel gear, the first bevel gear is perpendicular to the rotation shaft, and the rotation shaft is connected with the triggering component.
3. The solid state relay of claim 2, wherein the base is fixed with a rotating support, and the rotating shaft is rotatably connected with the rotating support.
4. An overtemperature protection solid state relay according to claim 3 wherein mounting holes are evenly spaced on the second link along the length of the second link, and the second pin is rotatably disposed in the mounting holes.
5. The solid-state relay of claim 1, wherein the compression bar comprises a first support bar, a second support bar and a horizontal bar, the first support bar and the second support bar are connected in an L shape, one end of the second support bar far away from the first support bar is connected with the horizontal bar, and the horizontal chute is formed in the horizontal bar of the compression bar.
6. An overtemperature protection solid state relay according to any one of claims 1-5, wherein a limiting block is integrally arranged on the side surface of the cutter, a tension spring is connected between the limiting block and the cutter seat, and the tension spring provides downward pretension force for the limiting block.
7. The solid state relay of claim 6, wherein an end plate is mounted at the upper end of the vertical chute, and the end plate is detachably connected with the cutter holder.
8. The solid state relay of claim 7, wherein the upper end of the control wire support is provided with a slot corresponding to the cutter, and a channel for the input control wire to pass through is provided on the control wire support along the axial direction of the input control wire, and the channel penetrates through the slot.
9. An overtemperature protection solid state relay according to any one of claims 1-5, wherein a protective shell is arranged on the outer side of the relay body, and a plurality of heat dissipation grooves are formed in the surface of the protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311183035.9A CN117200149B (en) | 2023-09-14 | 2023-09-14 | Over-temperature protection solid-state relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311183035.9A CN117200149B (en) | 2023-09-14 | 2023-09-14 | Over-temperature protection solid-state relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117200149A CN117200149A (en) | 2023-12-08 |
| CN117200149B true CN117200149B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311183035.9A Active CN117200149B (en) | 2023-09-14 | 2023-09-14 | Over-temperature protection solid-state relay |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728565A (en) * | 2019-02-13 | 2019-05-07 | 王者龙 | A kind of electric wire heat intelligent monitoring device |
| EP3657525A1 (en) * | 2018-11-22 | 2020-05-27 | Yuyao Jiarong Electrical Appliance Co., Ltd. | Leakage protector |
| CN111942196A (en) * | 2020-08-19 | 2020-11-17 | 西安电子科技大学芜湖研究院 | New energy charging pile capable of timely extinguishing fire and automatically cutting off power supply |
| CN114005706A (en) * | 2021-10-30 | 2022-02-01 | 申乐股份有限公司 | Electronic control relay |
-
2023
- 2023-09-14 CN CN202311183035.9A patent/CN117200149B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3657525A1 (en) * | 2018-11-22 | 2020-05-27 | Yuyao Jiarong Electrical Appliance Co., Ltd. | Leakage protector |
| CN109728565A (en) * | 2019-02-13 | 2019-05-07 | 王者龙 | A kind of electric wire heat intelligent monitoring device |
| CN110752583A (en) * | 2019-02-13 | 2020-02-04 | 王庆召 | Intelligent early warning power-off device and method for heat of electric wire |
| CN111942196A (en) * | 2020-08-19 | 2020-11-17 | 西安电子科技大学芜湖研究院 | New energy charging pile capable of timely extinguishing fire and automatically cutting off power supply |
| CN114005706A (en) * | 2021-10-30 | 2022-02-01 | 申乐股份有限公司 | Electronic control relay |
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| CN117200149A (en) | 2023-12-08 |
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