CN203466565U - Breakage protective circuit for serially-connected energy module connecting pieces based on diodes - Google Patents
Breakage protective circuit for serially-connected energy module connecting pieces based on diodes Download PDFInfo
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- CN203466565U CN203466565U CN201320558861.2U CN201320558861U CN203466565U CN 203466565 U CN203466565 U CN 203466565U CN 201320558861 U CN201320558861 U CN 201320558861U CN 203466565 U CN203466565 U CN 203466565U
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Abstract
The utility model discloses a breakage protective circuit for serially-connected energy module connecting pieces based on diodes. The circuit comprises protective circuit bodies connected with energy module bodies in a serially-connected energy module respectively, wherein each protective circuit body comprises a switching tube and a controller, each switching tube is connected with the positive pole of one of the energy module bodies and the negative pole of the one of the energy module bodies, the ground of the controllers is connected with the negative poles of the energy module bodies, and the power supplies of the controllers are connected with the positive poles of the energy module bodies respectively. According to the circuit, the controller and the switching tubes form the diodes, when the serially-connected energy module connecting pieces are broken, the diodes can play a role in flow continuing so that the large current can be prevented from flowing to signal circuits or small-power circuits, and the diodes can play a role in conducting clamping so that peak voltages caused by parasitic inductance can be avoided.
Description
Technical field
The utility model relates to the resist technology field of the power pack of connecting, and more particularly, relates to a kind of series connection energy component connecting piece fracture protective circuit based on diode.
Background technology
Series connection power pack is in the process of powering load, if there is connector to disconnect, original current supply circuit will be interrupted by force, effect due to load, the voltage occurring at connector gap is offrating far away, burns out the electronic circuit being connected on this connector, as AFE (analog front end) etc.For example, suppose to have N power pack series connection, single power pack voltage is V, M the positive terminal voltage of power pack is M*V under normal circumstances so, after the connector of M power pack opens circuit, the voltage of M amount of energy saving assembly anode becomes i*R-L*di/dt-(N-M) * V, wherein R is load resistance.Can find out, after connector opens circuit, due to the effect of lead-in inductance, loop circuit I can not drop to zero moment, this large electric current forms continuous current circuit by the electronic circuit connecting thereon, what walk due to power pack is large electric current, and the application circuit connecting is thereon all signal circuit, or low-power circuit, compare with major loop, be not a rank, these circuit all cannot bear the large electric current of major loop, therefore can burn out circuit.If the continuous current circuit circuit impedance connecting is thereon large, electric current is undergone mutation, now change in voltage is quite large, and become negative voltage from positive voltage, and the withstand voltage scope of the support circuit AFE (analog front end) of series connection power pack is a bit larger tham the rated voltage of a power pack often, and can not bear negative voltage, so this voltage is enough to burn out AFE (analog front end).Particularly, at large electric current, loop is large, and the serious consequences such as air breakdown, arc discharge easily appear in the occasion that lead-in inductance is large.If series connection power pack is in heavy-current discharge state, discharge loop disconnects suddenly, due to the effect of lead-in inductance, will produce peak voltage at gap, burns out connection circuit thereon.
Utility model content
In view of this, the utility model provides a kind of series connection energy component connecting piece fracture protective circuit based on diode, can realize when connector fracture appears in series connection power pack, and the circuit being connected in series connection power pack is protected.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of series connection energy component connecting piece fracture protective circuit based on diode, comprising: the protective circuit being connected respectively with each power pack of connecting in power pack; Wherein:
Described protective circuit comprises: switching tube and controller; Wherein:
Described switching tube is connected with the both positive and negative polarity of described single power pack;
The ground of described controller is connected with the negative pole of described single power pack; The power supply of described controller is connected with the positive pole of described single power pack; The gate pole output of described controller is extremely connected with the control of described switching tube.
Preferably, described power pack is: batteries or solar battery group or fuel cell unit or generating set.
Preferably, described switching tube comprises metal-oxide-semiconductor itself and its parasitic diode;
The drain electrode of described metal-oxide-semiconductor is connected with the positive pole of single power pack, and the source electrode of described metal-oxide-semiconductor is connected with the negative pole of single power pack; The grid of described metal-oxide-semiconductor is connected with the output of controller;
The positive pole of described parasitic diode is connected with the source electrode of described metal-oxide-semiconductor, and the negative pole of described parasitic diode is connected with the drain electrode of described metal-oxide-semiconductor;
The power supply of described controller is connected with the drain electrode of metal-oxide-semiconductor, and the ground of described controller is connected with the source electrode of metal-oxide-semiconductor, and the output of described controller is connected with the grid of metal-oxide-semiconductor.
From above-mentioned technical scheme, can find out, the disclosed series connection energy component connecting piece fracture protective circuit based on diode of the utility model, pass through switching tube, when there is fracture in series connection energy component connecting piece, can play the effect of clamper, thereby the peak voltage that the energy component connecting piece fracture of can avoiding connecting causes, by the switching tube being connected with each power pack, when there is fracture in series connection energy component connecting piece, can play the effect of afterflow, thereby large current direction signal circuit or low-power circuit during the energy component connecting piece of can avoiding connecting fracture.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of series connection energy component connecting piece fracture protective circuit based on diode of the utility model embodiment;
Fig. 2 is the structural representation of the disclosed a kind of series connection energy component connecting piece fracture protective circuit based on diode of another embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of series connection energy component connecting piece fracture protective circuit based on diode, can realize when connector fracture appears in series connection power pack, and the circuit being connected in series connection power pack is protected.
As shown in Figure 1, a kind of series connection energy component connecting piece fracture protective circuit based on diode, comprising: the protective circuit 11 being connected respectively with each power pack of connecting in power pack; Wherein:
Switching tube 111 is connected with the both positive and negative polarity of single power pack;
The ground of controller 112 is connected with the negative pole of single power pack; The power supply of controller 112 is connected with the positive pole of described single power pack; The gate pole output of controller 112 is extremely connected with the control of switching tube 111.
In the above-described embodiments, each power pack in series connection power pack connects separately a protective circuit, includes switching tube and controller in each protective circuit.Pass through diode, when there is fracture in series connection energy component connecting piece, can play the effect of clamper, thereby the peak voltage that the energy component connecting piece fracture of can avoiding connecting causes, by the switching tube being connected with each power pack, when there is fracture in series connection energy component connecting piece, can play the effect of afterflow, thus large current direction signal circuit or low-power circuit in the time of can avoiding connecting the fracture of energy component connecting piece.
As shown in Figure 2, be the disclosed a kind of series connection energy component connecting piece fracture protective circuit based on diode of another embodiment of the utility model, as shown in Figure 2, comprising: the protective circuit 21 being connected respectively with each power pack of connecting in power pack, wherein:
Protective circuit 21 comprises: metal-oxide-semiconductor 211, parasitic diode 212 and controller 213; Wherein:
The drain electrode of metal-oxide-semiconductor 211 is connected with the positive pole of single power pack, and the source electrode of metal-oxide-semiconductor 211 is connected with the negative pole of single power pack, and the grid of metal-oxide-semiconductor 211 is connected with the gate-drive of controller;
The positive pole of parasitic diode 212 is connected with the source electrode of described metal-oxide-semiconductor 211, and the negative pole of parasitic diode 212 is connected with the drain electrode of described metal-oxide-semiconductor 211;
The ground of controller 213 is connected with the negative pole of single battery; The power supply of controller 213 is connected with the positive pole of single battery; The gate-drive of controller 213 is connected with the grid of described metal-oxide-semiconductor.
In the above-described embodiments, when fracture appears in series connection energy component connecting piece, by parasitic diode, can play the effect of clamper, thus the peak voltage that the energy component connecting piece fracture of can avoiding connecting causes; By parasitic diode, when fracture appears in series connection energy component connecting piece, can play the effect of afterflow, thus large current direction signal circuit or low-power circuit in the time of can avoiding connecting the fracture of energy component connecting piece; By metal-oxide-semiconductor, when fracture appears in series connection energy component connecting piece, controller identifies state, provides while driving signal, can play the effect that reduces conduction loss, thereby in the time of can avoiding connecting the fracture of energy component connecting piece, parasitic diode burns because of overheated.
In the disclosed series connection energy component connecting piece fracture protective circuit based on diode of above-described embodiment, described power pack can be: batteries or solar battery group or fuel cell unit or generating set.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. the fracture of the series connection energy component connecting piece based on a diode protective circuit, is characterized in that, comprising: the protective circuit being connected respectively with each power pack of connecting in power pack; Wherein:
Described protective circuit comprises: switching tube and controller; Wherein:
Described switching tube is connected with the both positive and negative polarity of described single power pack;
The ground of described controller is connected with the negative pole of described single power pack; The power supply of described controller is connected with the positive pole of described single power pack; The output of described controller is extremely connected with the control of described switching tube.
2. circuit according to claim 1, is characterized in that, described power pack is: batteries or solar battery group or fuel cell unit or generating set.
3. circuit according to claim 1, is characterized in that, described switching tube comprises metal-oxide-semiconductor itself and its parasitic diode;
The drain electrode of described metal-oxide-semiconductor is connected with the positive pole of single power pack, and the source electrode of described metal-oxide-semiconductor is connected with the negative pole of single power pack; The grid of described metal-oxide-semiconductor is connected with the output of controller;
The positive pole of described parasitic diode is connected with the source electrode of described metal-oxide-semiconductor, and the negative pole of described parasitic diode is connected with the drain electrode of described metal-oxide-semiconductor;
The power supply of described controller is connected with the drain electrode of metal-oxide-semiconductor, and the ground of described controller is connected with the source electrode of metal-oxide-semiconductor, and the output of described controller is connected with the grid of metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558861.2U CN203466565U (en) | 2013-09-09 | 2013-09-09 | Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558861.2U CN203466565U (en) | 2013-09-09 | 2013-09-09 | Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
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| Publication Number | Publication Date |
|---|---|
| CN203466565U true CN203466565U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558861.2U Expired - Lifetime CN203466565U (en) | 2013-09-09 | 2013-09-09 | Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
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| CN (1) | CN203466565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427411A (en) * | 2013-09-09 | 2013-12-04 | 杭州协能科技有限公司 | Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
-
2013
- 2013-09-09 CN CN201320558861.2U patent/CN203466565U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427411A (en) * | 2013-09-09 | 2013-12-04 | 杭州协能科技有限公司 | Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
| CN103427411B (en) * | 2013-09-09 | 2018-03-30 | 杭州协能科技股份有限公司 | A kind of series connection energy component connecting piece fracture protection circuit based on diode |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Zhejiang science and technology industrial building 80 No. 310012 Zhejiang city of Hangzhou province Xihu District GUCUI Road Room 801 Patentee after: HANGZHOU XIENENG TECHNOLOGY Co.,Ltd. Address before: Zhejiang science and technology industrial building 80 No. 310012 Zhejiang city of Hangzhou province Xihu District GUCUI Road 8 floor Patentee before: HANGZHOU XIENENG TECHNOLOGY CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
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| CX01 | Expiry of patent term |