CN210806738U - Thermal separation device capable of being interrupted in sequence through rotary linkage - Google Patents
Thermal separation device capable of being interrupted in sequence through rotary linkage Download PDFInfo
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- CN210806738U CN210806738U CN201921388723.8U CN201921388723U CN210806738U CN 210806738 U CN210806738 U CN 210806738U CN 201921388723 U CN201921388723 U CN 201921388723U CN 210806738 U CN210806738 U CN 210806738U
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Abstract
The utility model relates to a heat of MOV chip is taken off from technical field, specifically disclose a rotatory linkage heat that blocks in proper order takes off from device, by the box body and install linkage carousel on the box body, power structure and first extraction electrode are constituteed, first extraction electrode is installed in the electrode slot of box body, be equipped with the main connector of releasing, at least one time the connector of releasing on the first extraction electrode, this main connector of releasing and time the connector of releasing stride the MOV chip that linkage carousel and box body back were installed and carry out electrical connection in the box body bottom. When the MOV chip breaks down the short circuit, the generated short circuit current is discharged sequentially through the main discharging connector and the secondary discharging connector and is interrupted sequentially by the linkage turntable, so that the technical problem that the voltage-limiting SPD, TMOV, TPMOV and TJMOV assemblies are not easy to break due to short circuit under the direct current condition is solved, safety protection is provided for a high-power direct-current power supply, and the device is low in cost, simple and easy to install and convenient to produce in batches.
Description
Technical Field
The utility model relates to a heat of MOV chip is taken off from technical field, especially relates to a heat that rotatory linkage was interrupted in proper order takes off from device.
Background
The voltage-limiting Surge Protector (SPD) and the on-board TMOV, TPMOV and TNMOV components have special nonlinear current-voltage characteristics, and are mainly formed by assembling MOV (Metal oxide varistors) chips of passive electronic elements. In case of abnormal conditions, such as lightning strike, electromagnetic field interference, frequent action of power switch, power system failure, etc., the voltage on the line suddenly increases and exceeds the conducting voltage of the SPD and the on-board components, so as to enter the conducting area, the current (I) and the voltage (V) have a nonlinear relationship, generally called nonlinear coefficient (nonlinear Parameter), which can reach tens or hundreds of values, at this time, the impedance of the surge protector (SPD, TMOV, TPMOV, TJMOV components) becomes low, and only a few ohms, so that the overvoltage forms a surge current to flow out, thereby protecting the connected electronic products or expensive components.
The voltage-limiting surge protector is easy to cause short circuit due to aging or a fault power supply, and a break-away and breaking structure is usually adopted to ensure that the surge protector is stopped from running in a very short time (the voltage and the current of an alternating current system have the characteristic of zero crossing, so that breaking is easy to realize), and more accidents are avoided. However, when a discharge tube is connected in series or under a high-capacity direct-current power supply system, follow current generated by short circuit is not easy to be broken by a common breaking structure (no over-zero characteristic), but continuous arc discharge is generated due to ionized air to cause serious accidents, and the defects of the voltage-limiting surge protector (SPD, TMOV, TPMOV and TJMOV components) need to be improved along with the wide application of the high-capacity direct-current power supply.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotatory linkage is heat that blocks in proper order and is taken off device, the technical problem of solution is, current voltage limiting type surge protector (SPD, TMOV, TPMOV, TJMOV subassembly) under large capacity DC power supply system or when the cluster has discharge tube, the continuous current that its short circuit produced is difficult to be broken by breaking the disjunction structure branch commonly used (have no zero characteristic), can produce continuous arc discharge because of the ionized air on the contrary.
In order to solve the technical problem, the utility model provides a thermal disengaging device which is in rotary linkage and is sequentially interrupted, which comprises a box body, a linkage turntable, a power structure and a first extraction electrode, wherein the linkage turntable, the power structure and the first extraction electrode are arranged on the box body;
the first leading-out electrode comprises a pin body, a main discharging connecting body and at least one secondary discharging connecting body, wherein the main discharging connecting body and the secondary discharging connecting body are led out from the pin body, and the main discharging connecting body and the secondary discharging connecting body are electrically connected with an MOV chip arranged on the back of the box body in a mode of crossing over the linkage rotary table at the bottom of the box body;
when the main discharging connector and the secondary discharging connector are heated and melted, the power structure drives the linkage turntable to sequentially interrupt the electrical connection between the main discharging connector and the secondary discharging connector and the MOV chip.
Specifically, the box body is provided with a rotating shaft, a stop column, an alarm opening and a shaft or a hole required by the power structure; an electrode groove is arranged for the first extraction electrode to be inserted; a second extraction electrode corresponding to the first extraction electrode is arranged; and a space for the disengagement indication swing is also provided.
Specifically, a rotary through hole which is matched with the rotary shaft in size is arranged on the linkage turntable; the main drainage through hole and the at least one secondary drainage through hole are formed correspondingly to the main drainage connector and the at least one secondary drainage connector connecting point; the alarm device is also provided with an alarm contact and a separation indicating end, when the separation occurs, the alarm contact is screwed out and separated from the alarm opening, and the separation indicating end indicates the rotation angle.
Alternatively, more linkage contacts or linkage warping plates can be arranged on the linkage rotary disc according to requirements.
Specifically, the box body and the linkage rotary table are made of non-conductive materials.
Specifically, the connection points of the main bleeder connection body, the at least one secondary bleeder connection body and the MOV chip adopt a thermal fusing substance.
Specifically, the power structure connects the linkage turntable with the box body in an elastic manner, and when the main discharging connector and the secondary discharging connector are heated and melted, the elastic force of the power structure drives the linkage turntable to rotate along the rotating shaft.
Preferably, the power structure is a torsion spring, and a first torsion spring installation column is arranged on the linkage turntable;
the torsion spring comprises a rotating hole in the middle and a first fixing hole at one end, and the rotating hole and the first fixing hole are respectively sleeved on the rotating shaft and the first torsion spring installation column;
the torsion spring also comprises a clamping angle hook at the other end part, and the clamping angle hook is used for resisting the inner side wall of the box body; or the torsion spring further comprises a second fixing ring at the other end part, and the second fixing ring is used for being sleeved on a second torsion spring installation column arranged on the box body.
Preferably, the power structure is a tension spring, the linkage turntable is provided with a first tension spring mounting column, and the box body is provided with a second tension spring mounting column;
the fixing rings at the two ends of the tension spring are respectively sleeved on the first tension spring installation column and the second tension spring installation column.
Alternatively, a power structure having elasticity, such as a push spring, a spring plate, or the like, may be provided in the opposite direction to the rotation of the interlocking dial.
The utility model provides a pair of rotatory linkage is heat that blocks in proper order from device comprises box body and linkage carousel, power structure and the first extraction electrode of installing on the box body, and first extraction electrode is installed at the electrode tank of box body, is equipped with the main connector of releasing, at least one time connector of releasing on the first extraction electrode, and this main connector of releasing and time connector of releasing stride over the MOV chip that linkage carousel and the box body back were installed and carry out electrical connection in the box body bottom. When the MOV chip breaks down the short circuit, the generated short circuit current is discharged sequentially through the main discharging connector and the secondary discharging connector and is sequentially interrupted by the linkage turntable, so that the technical problem that the voltage-limiting SPD, TMOV, TPMOV and TJMOV assemblies are not easy to break due to short circuit under the direct current condition is solved, safety protection is provided for high-power direct current power supplies (such as new energy vehicles, charging piles, solar power systems, direct current transmission systems and the like), and the device is low in cost, simple and easy to install and convenient to produce in batches.
Drawings
Fig. 1 is a front view of a thermal release device with a rotary linkage three-time interruption according to embodiment 1 of the present invention;
fig. 2 is a front view of the box body 1 in fig. 1 provided in embodiment 1 of the present invention;
fig. 3 is a front view of the linkage disc 2 in fig. 1 provided in embodiment 1 of the present invention;
fig. 4 is a front view of the torsion spring 3A in fig. 1 provided in embodiment 1 of the present invention;
fig. 5 is a front view of the first extraction electrode 4 in fig. 1 provided in embodiment 1 of the present invention;
fig. 6 is a view showing a thermal detachment process of fig. 1 provided in embodiment 1 of the present invention;
fig. 7 is a diagram showing a thermal detachment process provided in embodiment 2 of the present invention;
fig. 8 is a diagram showing a thermal detachment process provided in embodiment 3 of the present invention.
And (3) graphic labeling: a box body 1 (a rotating shaft 1-1, a stop column 1-2, a second discharging connection hole 1-3, a first discharging connection hole 1-4, an electrode groove 1-5, a third discharging connection hole 1-6, an alarm port 1-7, an MOV chip connection electrode 1-8, a second leading-out electrode 1-9 and a second tension spring installation column 1-10); a linkage turntable 2 (a rotary hole position 2-1, a separation indication end 2-2, an alarm contact 2-3, a first release through hole 2-4, a second release through hole 2-5, a third release through hole 2-6, a first torsion spring installation column 2-7, a support angle 2-8 and a first tension spring installation column 2-9); a power structure 3, a torsion spring 3A (a rotating hole 3-1, a first fixing hole 3-2 and a clamping angle hook 3-3) and a tension spring 3B; the first extraction electrode 4 (pin body 4-0, first leakage strip 4-1, first leakage joint 4-2, first leakage connection point 4-3, second leakage line 4-5, second leakage connection point 4-4, second leakage connection point 4-6, third leakage line 4-7, third leakage connection point 4-8, third leakage connection point 4-9).
Detailed Description
The following embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are given for illustrative purposes only and are not to be construed as limiting the invention, including the drawings, which are only used for reference and illustration, and do not constitute a limitation to the scope of the invention, since many changes may be made thereto without departing from the spirit and scope of the invention.
The utility model provides a thermal separation device which is in rotary linkage and is sequentially blocked, which comprises a box body, a linkage turntable, a power structure and a first extraction electrode, wherein the linkage turntable, the power structure and the first extraction electrode are arranged on the box body;
the first leading-out electrode comprises a pin body, a main discharging connecting body and at least one secondary discharging connecting body, wherein the main discharging connecting body and the secondary discharging connecting body are led out from the pin body, and the main discharging connecting body and the secondary discharging connecting body are electrically connected with an MOV chip arranged on the back of the box body in a mode of crossing over the linkage rotary table at the bottom of the box body;
when the main discharging connector and the secondary discharging connector are heated and melted, the power structure drives the linkage turntable to sequentially interrupt the electrical connection between the main discharging connector and the secondary discharging connector and the MOV chip.
Specifically, the box body is provided with a rotating shaft, a stop column, an alarm opening and a shaft or a hole required by the power structure; an electrode groove is arranged for the first extraction electrode to be inserted; a second extraction electrode corresponding to the first extraction electrode is arranged; and a space for the disengagement indication swing is also provided.
Specifically, a rotary through hole which is matched with the rotary shaft in size is arranged on the linkage turntable; the main drainage through hole and the at least one secondary drainage through hole are formed correspondingly to the main drainage connector and the at least one secondary drainage connector connecting point; the alarm device is also provided with an alarm contact and a separation indicating end, when the separation occurs, the alarm contact is screwed out and separated from the alarm opening, and the separation indicating end indicates the rotation angle.
Alternatively, more linkage contacts or linkage warping plates can be arranged on the linkage rotary disc according to requirements.
Specifically, the box body and the linkage rotary table are made of non-conductive materials.
Specifically, the connection points of the main bleeder connection body, the at least one secondary bleeder connection body and the MOV chip adopt a thermal fusing substance.
Specifically, the power structure connects the linkage turntable with the box body in an elastic manner, and when the main discharging connector and the secondary discharging connector are heated and melted, the elastic force of the power structure drives the linkage turntable to rotate along the rotating shaft.
Preferably, the power structure is a torsion spring, and a first torsion spring installation column is arranged on the linkage turntable;
the torsion spring comprises a rotating hole in the middle and a first fixing hole at one end, and the rotating hole and the first fixing hole are respectively sleeved on the rotating shaft and the first torsion spring installation column;
the torsion spring also comprises a clamping angle hook at the other end part, and the clamping angle hook is used for resisting the inner side wall of the box body; or the torsion spring further comprises a second fixing ring at the other end part, and the second fixing ring is used for being sleeved on a second torsion spring installation column arranged on the box body.
Preferably, the power structure is a tension spring, the linkage turntable is provided with a first tension spring mounting column, and the box body is provided with a second tension spring mounting column;
the fixing rings at the two ends of the tension spring are respectively sleeved on the first tension spring installation column and the second tension spring installation column.
Alternatively, a power structure having elasticity, such as a push spring, a spring plate, or the like, may be provided in the opposite direction to the rotation of the interlocking dial.
The following examples illustrate a thermal release device that is protected by the present invention and in which the rotational linkage is sequentially interrupted, and the following examples are merely preferred embodiments.
Example 1
Referring to fig. 1, the thermal release device comprises a box body 1, and a linkage turntable 2, a power structure 3 (a torsion spring 3A) and a first leading-out electrode 4 which are arranged on the box body 1.
As shown in fig. 2, the box body 1 is a rectangular or circular box body (rectangular in this example), and is provided with a rotating shaft 1-1, a stop column 1-2, an alarm port 1-7, and an electrode slot 1-5 for installing a first leading-out electrode 4, the box body 1 is provided with a main discharging connection hole site 1-4 (first discharging connection hole site), a connection electrode 1-8 of an MOV chip installed on the back side is allowed to penetrate out of the box bottom, so as to be electrically connected with an electric contact 4-3 on the main discharging electrode 4-1 of the first leading-out electrode 4 in fig. 5, and 1-3, 1-6 are respectively a second discharging connection hole site and a third discharging connection hole site for the MOV chip to penetrate out of the box bottom.
As shown in fig. 3, the linkage turntable 2 is of a circular structure (hereinafter referred to as a linkage disc 2), the linkage disc 2 is provided with a rotation hole position 2-1, a separation indication end 2-2, an alarm contact 2-3, a first torsion spring installation column 2-7, and a main through hole or a first vent through hole 2-4, a second vent through hole 2-5, and a third vent through hole 2-6 (corresponding to 1-4, 1-3, and 1-6 in fig. 1, respectively). The linkage disc 2 can be provided with more linkage contacts or linkage warping plates according to requirements.
As shown in fig. 4, the power structure 3 adopts a torsion spring (hereinafter referred to as torsion spring 3A), and the torsion spring 3A is used for providing rotary power for the linkage disk 2 and includes a rotary hole 3-1, a first fixing hole 3-2 and a corner hook 3-3 (for blocking the inner side wall of the box body 1). In other embodiments, the corner hook 3-3 may also be provided as a second fixing hole, and a second torsion spring mounting post is correspondingly provided on the box body 1 for fixing.
As shown in fig. 5, the first extraction electrode 4 provides all electrical connections, and is provided with a main tapping strip or a first tapping strip 4-1 (i.e., a main tapping connector, which is configured as a strip structure in this embodiment, and has a large connection area for tapping surge current and most of power supply current during short circuit), a first tapping connection 4-2, and a first tapping connection point 4-3; a second discharging line 4-5 (i.e. a first discharging connector which is provided with a linear or strip structure in the embodiment, the connecting area is small, and the impedance is high), a second discharging connection point 4-4, and a second discharging connection part 4-6 connected with the pin body 4-0 are arranged; a third relief line 4-7 (i.e. a second relief connector, which is configured as a linear structure in this embodiment, having a smaller connection area and higher impedance) is further provided, and a third relief connection point 4-8 is provided, and a third relief connection portion 4-9 connected to the pin body 4-0 is provided. The second and third release lines can be arranged according to the current fuse principle, and can also directly use commodity current fuses, temperature fuses, resistance wires and temperature alloys, all based on the thermal fusing principle.
The process of installing the structure shown in fig. 2-5 as fig. 1 is:
1) a rotating hole 3-1 of the linkage disc 2 is sleeved on a rotating shaft 1-1 of the box body 1, and the linkage disc 2 is rotated to ensure that the main through hole 2-4 is aligned with an MOV connecting electrode 1-8 which is penetrated out of the bottom of the box body 1;
2) checking whether the second and third vent through holes 2-5 and 2-6 on the linkage disc 2 are aligned with the second and third vent connecting hole sites 1-3 and 1-6 on the box body 1, if so, inserting the first leading-out electrode 4 into the mounting groove 1-5 in the box body 1, and if not, replacing a new linkage disc 2;
3) attaching a first discharge connection point 4-3 on the main discharge strip 4-1 to an MOV chip connection electrode 1-8 penetrating out of the bottom of the box body 1, connecting by using temperature alloy, connecting the second discharge connection point 4-4 with a second discharge connection hole site 1-3 in the same way, and connecting a third discharge connection point 4-8 with a third discharge connection hole site 1-6;
4) a rotating hole 3-1 of a torsion spring 3A is sleeved on a rotating shaft 1-1 of the box body 1, a clamping corner hook 3-3 of the torsion spring 3A is clamped at the left lower corner of the box body 1, then a first fixing hole 3-2 is respectively arranged on a first torsion spring installation column 2-7 of the linkage disc 2, and the whole device is installed (the torsion spring 3A is elastically deformed at the moment).
As shown in the thermal release process of fig. 6, when an abnormal condition occurs, the MOV chip generates heat, the low-temperature alloy of the first release connection point 4-3 melts, the linkage disc 2 rotates at an angle under the action of the torsion spring 3A, the main release strip 4-1 is cut off, and the air connection between the main release through hole 1-4 and the main release strip 4-1 is cut off (no follow current is generated in the main release channel), so that the first cut-off is completed. At this time, the short-circuit current is transferred to the second discharging connection point 4-4 of the second discharging connection hole site 1-3, because the wire connected with the second discharging connection hole site 1-3 is relatively tiny (the wire with impedance can be used as well as the low-temperature alloy wire, the current fuse wire and the temperature fuse wire can be used as well), the short-circuit current is reduced, the temperature of the second discharging connection hole site 1-3 is increased, in addition, the acting force of the torsion spring 3A is added, the connection of the second discharging connection hole site 1-3 is also cut off and interrupted, and the second cutting off and interrupting after the first cutting off and interrupting is completed. At the moment, the short-circuit current is transferred to the third discharge connection points 4-8 of the third discharge connection hole sites 1-6, and as the wires connected with the third discharge connection hole sites 1-6 are thinner, the connection of the third discharge connection hole sites 1-6 is also smoothly cut off and interrupted in the same way as the second cut-off and interruption, and the third cut-off and interruption after the second cut-off and interruption is completed.
Because the open circuit current is continuously reduced and the air is not punctured by enough energy, the arc discharge cannot be caused during the cut-off.
When the first release through hole position 1-4 is cut off and interrupted, the alarm contact 2-3 and the release indicating end 2-2 both act to complete fault indication, and the device completes all actions in sequence.
The second bleeder through hole site 1-3 or the third bleeder through hole site 1-6 is cut off and interrupted after the first bleeder through hole site 1-4 or the second bleeder through hole site 1-3 is cut off and interrupted, the relative position of the linkage turntable 2 is changed, the second bleeder through hole site 1-3 or the third bleeder through hole site 1-6 reserves the movable position of the connection point, the movable radian is larger at the later stage, and the movable track of the bleeder through hole site is longer.
Example 2
As shown in fig. 7, the thermal desorption process is different from that of embodiment 1 in that:
① adopts secondary cutting and breaking based on the principle of sequential cutting and breaking, omitting the third vent connection hole site 1-6, the third vent through hole 2-6, the third vent line 4-7, the third vent connection point 4-8 and the joint 4-9 of the third vent line 4-7 and the pin body 4-0 in the embodiment 1, and adjusting the positions of the first vent connection hole site 1-4 (corresponding to the main through hole 2-4) and the second vent connection hole site 1-3 (corresponding to the second vent through hole 2-5);
② the power structure 3 adopts a tension spring 3B, the linkage disc 2 structure is changed relative to the embodiment 1, the first torsion spring installation column 2-7 is omitted, but a support angle 2-8 is led out from the upper left corner, the first tension spring installation column 2-9 is arranged on the support angle 2-8, meanwhile, the second tension spring installation column 1-10 is arranged at the lower left corner of the box body 1, the tension spring 3B is connected between the two, and the tension spring 3B is in a pulled state when the installation is finished;
③ omit the stop posts 1-2.
Example 3
As shown in fig. 8, the thermal desorption process is different from that of embodiment 2 in that:
① the installation position of the tension spring 3B, the state of slightly inclining vertically shown in figure 7 is changed into the horizontal state, and the state after the separation is finished is also changed from the vertical state into the horizontal state;
② linkage disc 2, the detachment indication end 2-2 and the support angle 2-8 are combined into a whole, the position of the detachment indication end is designed at the upper right corner of the linkage disc 2 along with the installation position of the tension spring 3B, and the first release through hole 2-4 is arranged to be an opening (the disc is partially cut).
The utility model discloses the heat that all embodiments provided was in proper order interrupted in rotatory linkage takes off from device comprises box body and linkage carousel, power structure and the first extraction electrode of installing on the box body, and first extraction electrode is installed in the electrode slot of box body, is equipped with the main connector of releasing, at least one time connector of releasing on the first extraction electrode, and this main connector of releasing and time connector of releasing stride the MOV chip that linkage carousel and box body back were installed and carry out electrical connection in the box body bottom. When the MOV chip breaks down the short circuit, the generated short circuit current is discharged sequentially through the main discharging connector and the secondary discharging connector and is sequentially interrupted by the linkage turntable, so that the technical problem that the voltage-limiting SPD, TMOV, TPMOV and TJMOV assemblies are not easy to break due to short circuit under the direct current condition is solved, safety protection is provided for high-power direct current power supplies (such as new energy vehicles, charging piles, solar power systems, direct current transmission systems and the like), and the device is low in cost, simple and easy to install and convenient to produce in batches.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. The utility model provides a rotatory thermal desorption device that interlock was interrupted in proper order which characterized in that: the device comprises a box body, a linkage turntable, a power structure and a first extraction electrode, wherein the linkage turntable, the power structure and the first extraction electrode are arranged on the box body;
the first leading-out electrode comprises a pin body, a main discharging connecting body and at least one secondary discharging connecting body, wherein the main discharging connecting body and the secondary discharging connecting body are led out from the pin body, and the main discharging connecting body and the secondary discharging connecting body are electrically connected with an MOV chip arranged on the back of the box body in a mode of crossing over the linkage rotary table at the bottom of the box body;
when the main discharging connector and the secondary discharging connector are heated and melted, the power structure drives the linkage turntable to sequentially interrupt the electrical connection between the main discharging connector and the secondary discharging connector and the MOV chip.
2. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 1, further comprising: the box body is provided with a rotating shaft, a stop post, an alarm port and a shaft or a hole required by the power structure; an electrode groove is arranged for the first extraction electrode to be inserted; a second extraction electrode corresponding to the first extraction electrode is arranged; and a space for the disengagement indication swing is also provided.
3. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 2, further comprising: a rotary through hole which is matched with the rotary shaft in size is arranged on the linkage turntable; the main drainage through hole and the at least one secondary drainage through hole are formed correspondingly to the main drainage connector and the at least one secondary drainage connector connecting point; the alarm device is also provided with an alarm contact and a separation indicating end, when the separation occurs, the alarm contact is screwed out and separated from the alarm opening, and the separation indicating end indicates the rotation angle.
4. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 1, further comprising: the box body and the linkage turntable are made of non-conductive materials.
5. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 1, further comprising: the connection points of the main bleeder connection body, the at least one secondary bleeder connection body and the MOV chip adopt thermal fusing substances.
6. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 2, further comprising: the power structure is used for elastically connecting the linkage turntable with the box body, and when the main discharging connector and the secondary discharging connector are heated and melted, the elasticity of the power structure drives the linkage turntable to rotate along the rotating shaft.
7. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 2, further comprising: the power structure is a torsion spring, and a first torsion spring installation column is arranged on the linkage turntable;
the torsion spring comprises a rotating hole in the middle and a first fixing hole at one end, and the rotating hole and the first fixing hole are respectively sleeved on the rotating shaft and the first torsion spring installation column;
the torsion spring also comprises a clamping angle hook at the other end part, and the clamping angle hook is used for resisting the inner side wall of the box body; or the torsion spring further comprises a second fixing ring at the other end part, and the second fixing ring is used for being sleeved on a second torsion spring installation column arranged on the box body.
8. A rotary-coupled sequential-shutoff thermal release apparatus according to claim 1, further comprising: the power structure is a tension spring, a first tension spring installation column is arranged on the linkage turntable, and a second tension spring installation column is arranged on the box body;
the fixing rings at the two ends of the tension spring are respectively sleeved on the first tension spring installation column and the second tension spring installation column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388723.8U CN210806738U (en) | 2019-08-23 | 2019-08-23 | Thermal separation device capable of being interrupted in sequence through rotary linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388723.8U CN210806738U (en) | 2019-08-23 | 2019-08-23 | Thermal separation device capable of being interrupted in sequence through rotary linkage |
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| Publication Number | Publication Date |
|---|---|
| CN210806738U true CN210806738U (en) | 2020-06-19 |
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|---|---|---|---|
| CN201921388723.8U Active CN210806738U (en) | 2019-08-23 | 2019-08-23 | Thermal separation device capable of being interrupted in sequence through rotary linkage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601164A (en) * | 2019-08-23 | 2019-12-20 | 隆科电子(惠阳)有限公司 | Thermal separation device capable of being interrupted in sequence through rotary linkage |
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2019
- 2019-08-23 CN CN201921388723.8U patent/CN210806738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601164A (en) * | 2019-08-23 | 2019-12-20 | 隆科电子(惠阳)有限公司 | Thermal separation device capable of being interrupted in sequence through rotary linkage |
| CN110601164B (en) * | 2019-08-23 | 2024-03-22 | 隆科电子(惠阳)有限公司 | Rotary linkage thermal disengaging device capable of blocking in sequence |
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