CN205004742U - Surge protection device - Google Patents
Surge protection device Download PDFInfo
- Publication number
- CN205004742U CN205004742U CN201520631555.6U CN201520631555U CN205004742U CN 205004742 U CN205004742 U CN 205004742U CN 201520631555 U CN201520631555 U CN 201520631555U CN 205004742 U CN205004742 U CN 205004742U
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- surge protector
- overvoltage protection
- protection element
- pin
- slide block
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a surge protection device, include: casing, overvoltage protection component and hot release unit. Overvoltage protection component and hot release unit are installed in the casing, and the overvoltage protection component is established ties with hot release unit, inserts in the circuit at surge protection device place again. The utility model discloses a surge protection device possesses hot release unit, and small, assembly simply breaks away from the function and can provide reliable heat.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, more particularly, relates to the surge protector possessing hot release unit.
Background technology
In low-voltage distribution system, to the overvoltage that thunder and lightning causes, the technical staff of this industry field uses surge protector SPD (SurgeProtectiveDevice) to protect comparatively commonly.Surge protector not only needs the safety protecting electrical network and equipment, and the fail safe of himself also can not be ignored, and therefore in surge protector, often uses releasing mechanism, makes its departing from from electrical network at fail safe.General; releasing mechanism is in locking state when surge protector normally works; when surge protector lost efficacy (thermal overload); locking state disappears; flexible member drives releasing mechanism to cut off the connection of surge protector internal electrical, makes surge protector safe escape from circuit.
The hot disconnector of existing surge protector product can be divided into flatly moving type and rotary type two kinds substantially, and object is all surge protector internal electrical connection status cut off.Its principle be in working order under, actuator is in locking state under the effect of stop part; When breaking down (thermal overload), stop part cancels locking, drives actuator to carry out action, surge protector is disconnected electrical connection from inside, thus is departed from circuit by surge protector by elastic energy storage element.Its existence of general flatly moving type disconnector is threaded off apart from short, easily there is the problems such as wire drawing, and the disconnector of rotary type exists complex structure, the problems such as volume is large after dropout.
Utility model content
The utility model is intended to propose a kind of surge protector possessing hot release unit.
According to an embodiment of the present utility model, propose a kind of surge protector, comprising: housing, overvoltage protection element and hot release unit.Overvoltage protection element and hot release unit are installed in the housing, and overvoltage protection element is connected with hot release unit, then is linked in the circuit at surge protector place.
In one embodiment, this surge protector also comprises indicating device, and indicating device is installed in the housing, the connection status of indicating device instruction overvoltage protection element and hot release unit.
In one embodiment; housing is frame structure, and bottom has the first pin and the second pin, and the first pin and the second pin are as the connecting part of the electrical connection of surge protector and external circuit; the top of housing has indication window, and indication window coordinates with indicating device.
In one embodiment, hot release unit comprises slide block, conducting strip, flexible connecting line, sleeve and spring.Slide block is arranged in the chute of housing bottom, and slide block slides in chute.Spring fitting is between slide block and housing.Conducting strip is arranged on slide block, and conducting strip slides in chute with slide block.Conducting strip is electrically connected with one end of flexible connecting line, and the other end of flexible connecting line is connected with the second pin.
In one embodiment; overvoltage protection element has two pins; first pin of overvoltage protection element is directly connected with the first pin; second pin of overvoltage protection element is welded together by the conducting strip in low-melting alloy and hot release unit, and overvoltage protection element is connected with hot release unit.
In one embodiment, indicating device is index strip, and one end of index strip is fixed on slide block, and the body of index strip is arranged along the sidewall of housing and extends to the top of housing.
In one embodiment, surge protector normally works, and low-melting alloy is solid state, and conducting strip is fixedly connected with the second pin of overvoltage protection element, and overvoltage protection element is linked in the circuit at surge protector place, spring-compressed energy storage.Surge protector breaks down; low-melting alloy liquefies; second pin of conducting strip and overvoltage protection element departs from; spring is released can; utilize spring force to promote slide block to slide in chute; slide block drives conducting strip move and be separated with the second pin of overvoltage protection element, and overvoltage protection element departs from from the circuit at surge protector place.
In one embodiment, index strip moves with slide block, can observe the different parts of index strip from indication window.
In one embodiment, the different parts of index strip has different colors.
Surge protector of the present utility model possesses hot release unit, and volume is little, assembling is simple and can provide reliable hot detachment function.
Accompanying drawing explanation
The above and other feature of the utility model, character and advantage are by more obvious by what become below in conjunction with the description of drawings and Examples, and Reference numeral identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 discloses the structure chart of the surge protector according to an embodiment of the present utility model from the first angle.
Fig. 2 discloses the structure chart of the surge protector according to an embodiment of the present utility model from the second angle.
Fig. 3 discloses the structure chart of the surge protector according to an embodiment of the present utility model from the 3rd angle.
Fig. 4 discloses the structure of hot release unit in the surge protector according to an embodiment of the present utility model.
Embodiment
Shown in figure 1, Fig. 2 and Fig. 3, the utility model discloses a kind of surge protector, and this surge protector has hot release unit.Fig. 1, Fig. 2 and Fig. 3 illustrate the structure of this surge protector from different three angles.As shown in the figure, this surge protector comprises: housing 102, overvoltage protection element 103, hot release unit and indicating device.Overvoltage protection element, hot release unit and indicating device are installed in the housing.Overvoltage protection element is connected with hot release unit, and the overvoltage protection element after series connection and hot release unit are linked in the circuit at surge protector place.Indicating device instruction overvoltage protection element is be connected or disconnect with the connection status of hot release unit.
Housing 102 is roughly in frame structure, and bottom has two pins, the first pin 108 and the second pin 109.First pin 108 and the second pin 109 are as the connecting part of the electrical connection of surge protector and external circuit.The top of housing 102 has the indication window of indicating status.Indication window coordinates with indicating device.
Overvoltage protection element 103 has two pins; first pin of overvoltage protection element 103 is directly electrically connected with the first pin 108; second pin 132 of overvoltage protection element 103 is welded together (shown in figure 3) by the conducting strip 112 in low-melting alloy and hot release unit, and overvoltage protection element 103 is connected with hot release unit.
Shown in figure 4, Fig. 4 discloses the structure of hot release unit in the surge protector according to an embodiment of the present utility model.Hot release unit comprises slide block 104, conducting strip 112, flexible connecting line 107, sleeve 106 and spring 105.Slide block 104 is arranged in the chute bottom housing 102, and slide block 104 can slide in chute.Spring 105 is arranged on (shown in figure 1) between slide block 104 and housing 102.Conducting strip 112 is arranged on slide block 104, and conducting strip 112 slides in chute with slide block 104.Conducting strip 112 is electrically connected with one end of flexible connecting line 107, and the other end of flexible connecting line 107 is electrically connected with the second pin 109.Because conducting strip 112 can move along with slide block 104 in chute, therefore adopt flexible connecting line 107 can guarantee in the moving process of slide block, can keep all the time between conducting strip 112 with the second pin 109 being electrically connected.Continue with reference to shown in figure 4, sleeve 106 is enclosed within flexible connecting line 107, and the effect of sleeve 106 places flexible connecting line 107 other parts except first end can not contact with conducting strip 112 and produce fault.The position of sleeve 106 covers the scope that conducting strip 112 may contact with flexible connecting line 107 in moving process, therefore guarantee conducting strip 112 in the moving process with slide block 104 can not with other part contact of flexible connecting line 107.
The course of work of this surge protector is as follows: when surge protector normally works, and low-melting alloy is solid state.Therefore conducting strip 112 is in the second pin 132 of overvoltage protection element 103 state of being fixedly connected with.First pin support of overvoltage protection element 103 is connected with the first pin 108; second pin 132 is connected with the second pin 109 by low-melting alloy, conducting strip 112, flexible connecting line 107, so overvoltage protection element 103 is linked in circuit by the first pin 108 and the second pin 109.Because the position of the second pin 132 of overvoltage protection element 103 is fixing, the position of conducting strip 112 is also fixed, and is also fixed for the position of slide block 104 in chute of installing conducting strip 112.Now spring 105 is by compressed energy-storage.When surge protector breaks down, such as occur thermal overload, low-melting alloy can liquefy because temperature raises, and the connection now between conducting strip 112 and the second pin 132 of overvoltage protection element 103 is no longer fixing.At this moment, energy released by spring 105, utilizes spring force to promote slide block 104 and slides in chute.Slide block 104 drives conducting strip 112 to move; because the position of the second pin 132 of overvoltage protection element 103 is fixing; after conducting strip 112 moves; conducting strip 112 has just been separated with the second pin 132 of overvoltage protection element 103; therefore the electrical connection between the second pin 132 of overvoltage protection element 103 and the second pin 109 is cut off, and overvoltage protection element 103 departs from from circuit.Simultaneously; after slide block 104 moves; position between second pin 132 of overvoltage protection element 103 and conducting strip 112 substantially stop by slide block 104; slide block 104 is made by insulating material; therefore, it is possible to the insulation formed between the second pin 132 and conducting strip 112 is isolated; blocking arc channel, is conducive to breaking arc.
Indicating device instruction overvoltage protection element is be connected or disconnect with the connection status of hot release unit.In the illustrated embodiment in which, indicating device comprises index strip 110.Index strip 110 is flexible-belts, and one end of index strip 110 is fixed on (shown in figure 4) on slide block 104.The body of index strip 110 is arranged along the sidewall of housing 102, and extends to the top of housing 102.The subregion of index strip 110 can be observed in the indication window of housing 102.Along with the movement of slide block 104, index strip 110 is driven, and thus can observe the different parts of index strip 110 from indication window.Be in example at one, the different parts of index strip is coated with different colors.Such as, when surge protector normally works, the part of the index strip 110 observed by indication window is green.When surge protector trouble, index strip 110 shift position, the part of the index strip 110 observed by indication window is red.
Surge protector of the present utility model possesses hot release unit, and volume is little, assembling is simple and can provide reliable hot detachment function.
Above-described embodiment is available to be familiar with person in the art to realize or to use of the present utility model; those skilled in the art can when not departing from utility model thought of the present utility model; various modifications or change are made to above-described embodiment; thus protection range of the present utility model not limit by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (9)
1. a surge protector, is characterized in that, comprising: housing, overvoltage protection element and hot release unit;
Overvoltage protection element and hot release unit are installed in the housing, and overvoltage protection element is connected with hot release unit, then is linked in the circuit at surge protector place.
2. surge protector as claimed in claim 1, is characterized in that, also comprise indicating device, and indicating device is installed in the housing, the connection status of indicating device instruction overvoltage protection element and hot release unit.
3. surge protector as claimed in claim 2; it is characterized in that; described housing is frame structure; bottom has the first pin and the second pin; first pin and the second pin are as the connecting part of the electrical connection of surge protector and external circuit; the top of housing has indication window, and indication window coordinates with indicating device.
4. surge protector as claimed in claim 3, it is characterized in that, described hot release unit comprises slide block, conducting strip, flexible connecting line, sleeve and spring;
Slide block is arranged in the chute of housing bottom, and slide block slides in chute;
Spring fitting is between slide block and housing;
Conducting strip is arranged on slide block, and conducting strip slides in chute with slide block;
Conducting strip is electrically connected with one end of flexible connecting line, and the other end of flexible connecting line is connected with the second pin.
5. surge protector as claimed in claim 4; it is characterized in that; overvoltage protection element has two pins; first pin of overvoltage protection element is directly connected with the first pin; second pin of overvoltage protection element is welded together by the conducting strip in low-melting alloy and hot release unit, and overvoltage protection element is connected with hot release unit.
6. surge protector as claimed in claim 5, it is characterized in that, described indicating device is index strip, and one end of index strip is fixed on slide block, and the body of index strip is arranged along the sidewall of housing and extends to the top of housing.
7. surge protector as claimed in claim 6, is characterized in that,
Surge protector normally works, and low-melting alloy is solid state, and conducting strip is fixedly connected with the second pin of overvoltage protection element, and overvoltage protection element is linked in the circuit at surge protector place, spring-compressed energy storage;
Surge protector breaks down; low-melting alloy liquefies; second pin of conducting strip and overvoltage protection element departs from; spring is released can; utilize spring force to promote slide block to slide in chute; slide block drives conducting strip move and be separated with the second pin of overvoltage protection element, and overvoltage protection element departs from from the circuit at surge protector place.
8. surge protector as claimed in claim 7, it is characterized in that, index strip moves with slide block, can observe the different parts of index strip from indication window.
9. surge protector as claimed in claim 8, it is characterized in that, the different parts of described index strip has different colors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631555.6U CN205004742U (en) | 2015-08-20 | 2015-08-20 | Surge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631555.6U CN205004742U (en) | 2015-08-20 | 2015-08-20 | Surge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004742U true CN205004742U (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520631555.6U Active CN205004742U (en) | 2015-08-20 | 2015-08-20 | Surge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004742U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870902A (en) * | 2016-04-08 | 2016-08-17 | 上海优泰欧申机电有限公司 | Surge protection device for power supply |
| CN106910663A (en) * | 2017-04-28 | 2017-06-30 | 湖南中普技术股份有限公司 | Surge protector and its guard method with pre- tripping function |
| WO2023155391A1 (en) * | 2022-02-18 | 2023-08-24 | 上海正泰智能科技有限公司 | Thermal disconnection and indication mechanism and surge protector |
-
2015
- 2015-08-20 CN CN201520631555.6U patent/CN205004742U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870902A (en) * | 2016-04-08 | 2016-08-17 | 上海优泰欧申机电有限公司 | Surge protection device for power supply |
| CN106910663A (en) * | 2017-04-28 | 2017-06-30 | 湖南中普技术股份有限公司 | Surge protector and its guard method with pre- tripping function |
| WO2023155391A1 (en) * | 2022-02-18 | 2023-08-24 | 上海正泰智能科技有限公司 | Thermal disconnection and indication mechanism and surge protector |
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