CN201060820Y - Switch type current overload protector - Google Patents
Switch type current overload protector Download PDFInfo
- Publication number
- CN201060820Y CN201060820Y CNU2007201204980U CN200720120498U CN201060820Y CN 201060820 Y CN201060820 Y CN 201060820Y CN U2007201204980 U CNU2007201204980 U CN U2007201204980U CN 200720120498 U CN200720120498 U CN 200720120498U CN 201060820 Y CN201060820 Y CN 201060820Y
- Authority
- CN
- China
- Prior art keywords
- switch
- seesaw
- guide card
- overcurrent protection
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a switch-type overcurrent protector, comprising a switch casing, a switch control component, a thermosensitive metal blade, a switching wane conductive blade and a wane support conductive blade, wherein, the movable end of the thermosensitive metal blade is connected with the wane support conductive blade; the switch control component is connected with a reset pull rod used for resetting the deformed thermosensitive metal blade after overcurrent. The utility model provides a switch-type overcurrent protector which has switching function and enables automatic circuit break and automatic resetting when in overcurrent. The utility model has the advantages that the automatic protection of overcurrent is realized with the deforming characteristic of the thermosensitive metal blade; the protector also has common switching control function; the overcurrent protection part works independently, thereby, when the switch needs to be switched off, but cannot be switched off, the overcurrent protection part of the circuit can still work normally, and the use is safer.
Description
Technical field
The utility model relates to a kind of current overload protection protection unit, the especially a kind of current overload protection protection unit that can control as regular tap.
Background technology
General rocker switch all has path and the two kinds of operating modes that open circuit usually, and therefore, when pressing an end of seesaw, what the switch home loop presented is the situation of path, and at this moment, electric current then can waltz through switch; Otherwise if when pressing the other end of seesaw, the loop in the rocker switch then presents the situation that opens circuit, and at this moment, electric current then can't pass through switch.The switch of this class is not owing to have any protective device, so if when moment has huge electric current by push-button switch, the electrical equipment controlled of switch then probably can produce the situation of damage because of the overload of electric current thus.And general current overload protection protection unit does not possess the manipulation function as regular tap, can only independently use as protective device when using in electrical equipment.When needs current overload protection protection unit and switch duplicate protection, increased product space and product cost, be unfavorable for the extensive use of the general product for civilian use.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of switching mode current overload protection protection unit; function with auto-cutout protection when realizing current overload; can as regular tap, use under the normal condition simultaneously; and then the effect that electrical equipment is produced duplicate protection, and eliminate the back switch in overload and restart protective device and both can automatically reset.
For addressing the above problem the utility model by the following technical solutions: a kind of switching mode overcurrent protection device; comprise that switch housing, switch control assembly, thermo-responsive sheet metal, switch switch the seesaw guide card and seesaw supports guide card; the movable end of described thermo-responsive sheet metal and seesaw support guide card and are connected, and described switch control assembly is connected with and is used for the reset lever that after thermo-responsive sheet metal overload is out of shape it resetted.
Reset lever described in the utility model is provided with the drag hook that is positioned at thermo-responsive sheet metal movable end below.
Reset lever described in the utility model is articulated in an end of switch control assembly.
Overcurrent protection device described in the utility model is connected with electric current input and output guide card.
Seesaw guide card described in the utility model is movable metallic conduction seesaw.
Switch control assembly described in the utility model is formed described elastic parts and the sliding contact of seesaw guide card by axis that is fixed on switch housing and the elastic parts under it.
The utility model has compared with prior art not only utilized thermo-responsive sheet metal can produce thermal sensitive effect by electric current the time and has produced and be out of shape the characteristic that circuit is disconnected, and realizes the automatic protection of current overload, and has added common switch control functions.Especially its structure has guaranteed that overload protection partly works alone, and when switch need cut out and can not cut out because of accident, still can guarantee the overload protection operate as normal of circuit, uses safer.The utility model product structure is simple, and is safe and reliable, is easy to realize.
Description of drawings
Schematic diagram when Fig. 1 is the utility model switch connection state.
Schematic diagram when Fig. 2 is the utility model switch off state.
Schematic diagram when Fig. 3 is the utility model switch overload protection state.
Schematic diagram when Fig. 4 is the utility model switch reset mode.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model is made up of switch housing 1, switch control assembly 2, thermo-responsive sheet metal 3, switch switching seesaw guide card 4, seesaw support guide card 5 and electric current input and output guide card 6.Switch control assembly 2 is connected with the reset lever 7 that is used for making its buckle that resets after the distortion of thermo-responsive sheet metal overload, and reset lever 7 is articulated in an end of switch control assembly 2.Electric current input and output guide card 6 switches seesaw guide card 4 with switch, seesaw supports guide card 5, thermo-responsive sheet metal 3 and forms the utility model internal circuit through connecting as shown in Figure 1.Switch seesaw guide card 4 and reset lever 7 by switch control assembly 2 control switchs.Figure 1 shows that normal opening of the present utility model.
Be illustrated in figure 2 as the utility model and be in normal closed condition, rotate by control switch control assembly 2, cause that switch switches seesaw guide card 4 state as shown in Figure 2 that links, the internal circuit switch switches seesaw guide card 4 and opens circuit with electric current input and output guide card 6.
As previously mentioned, the utility model has been realized the effect of regular tap.
Be illustrated in figure 3 as the state after the utility model overload protection starts; because the utility model has used thermo-responsive sheet metal 3 to be connected in the switch loop in the home loop device; according to thermo-responsive sheet metal (claiming bimetal leaf again) when itself producing the physical characteristic of heating by electric current; when surpassing certain rated value by electric current, the different characteristic of the bimetallic coefficient of expansion will make thermo-responsive sheet metal produce crooked deformation.These characteristics of utilizing the utility model realize that the current overload of switch home loop opens circuit, thereby have realized switch is allowed the overload protection of the rated current passed through.As shown in Figure 3; though the switch seesaw is in the position of switch open; can crooked deformation take place thermo-responsive sheet metal 3; cut off and being connected of electric current input and output guide card 6; thereby the utility model internal circuit is opened circuit, the overload protection when therefore having realized to the circuital current overload by switch.
As shown in Figure 4, when eliminate in the overload source of the external circuit that uses this device, only switch need cut out once, in the process of closing, the reset lever 7 that connects switch control assembly 2 upwards lifts the deformed end of thermo-responsive sheet metal 3 with the drag hook of the rotation drive reset lever 7 of switch control assembly 2, thereby make thermo-responsive sheet metal 3 recover normal condition as shown in Figure 4, realized auto-reset function of the present utility model.
Claims (6)
1. switching mode overcurrent protection device; comprise that switch housing (1), switch control assembly (2), thermo-responsive sheet metal (3), switch switch seesaw guide card (4) and seesaw supports guide card (5); it is characterized in that: the movable end of described thermo-responsive sheet metal (3) supports guide card (5) with seesaw and touches mutually, and described switch control assembly (2) is connected with and is used for making its reset lever that resets (7) after the distortion of thermo-responsive sheet metal (3) overload.
2. switching mode overcurrent protection device according to claim 1 is characterized in that: described reset lever (7) is provided with the drag hook that is positioned at thermo-responsive sheet metal (3) movable end below.
3. switching mode overcurrent protection device according to claim 1 and 2 is characterized in that: described reset lever (7) is articulated in an end of switch control assembly (2).
4. switching mode overcurrent protection device according to claim 1 is characterized in that: described overcurrent protection device is connected with electric current input and output guide card (6).
5. switching mode overcurrent protection device according to claim 1 is characterized in that: described seesaw guide card (4) is movable metallic conduction seesaw.
6. switching mode overcurrent protection device according to claim 1 is characterized in that: described switch control assembly (2) is formed described elastic parts and seesaw guide card (4) sliding contact by axis that is fixed on switch housing and the elastic parts under it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201204980U CN201060820Y (en) | 2007-06-02 | 2007-06-02 | Switch type current overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201204980U CN201060820Y (en) | 2007-06-02 | 2007-06-02 | Switch type current overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060820Y true CN201060820Y (en) | 2008-05-14 |
Family
ID=39409309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201204980U Expired - Fee Related CN201060820Y (en) | 2007-06-02 | 2007-06-02 | Switch type current overload protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060820Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159354A (en) * | 2015-03-25 | 2016-11-23 | 北京波士顿动力电池有限公司 | A kind of Novel power battery module safeguard construction |
-
2007
- 2007-06-02 CN CNU2007201204980U patent/CN201060820Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159354A (en) * | 2015-03-25 | 2016-11-23 | 北京波士顿动力电池有限公司 | A kind of Novel power battery module safeguard construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20120602 |