CN204721621U - A kind of heating wire circuit protection structure - Google Patents
A kind of heating wire circuit protection structure Download PDFInfo
- Publication number
- CN204721621U CN204721621U CN201520312810.0U CN201520312810U CN204721621U CN 204721621 U CN204721621 U CN 204721621U CN 201520312810 U CN201520312810 U CN 201520312810U CN 204721621 U CN204721621 U CN 204721621U
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- CN
- China
- Prior art keywords
- module
- circuit switch
- switch module
- branch road
- load blocks
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Abstract
The utility model discloses a kind of heating wire circuit protection structure, comprising: power module and load blocks, be provided with circuit switch module between power module and load blocks; The input termination power module of circuit switch module, the output load blocks of circuit switch module, is provided with branch road module between circuit switch module and load blocks, and the resistance value of branch road module is greater than the resistance value between circuit switch module and load blocks; The armature by size of current control action and at least two contacts are provided with in circuit switch module, load blocks and branch road module connect different contacts respectively, armature in circuit switch module and contact are connected the structure controlling element that this contact is connected and power module, and are mutually switched between different contacts by the size of current that power module inputs.The utility model avoids the excessive damage load of electric current, meanwhile, also avoids electric current excessive, causes circuit superheating phenomenon.
Description
Technical field
The utility model relates to technical field of electricity, particularly relates to a kind of heating wire circuit protection structure.
Background technology
Heating wire on heating element is resistance wire, resistance wire connects out-put supply by circuit, because the factor such as input voltage, load, transformer characteristic by power supply affects, size of current can be caused to differ, the change meeting damage equipment that electric current is suddenly big or suddenly small for a long time, and circuit when circuit works under continuing the state being in super rated current, can be caused overheated, even ignite, burn circuit, even cause the serious consequences such as fire.
Utility model content
Based on the technical problem that above-mentioned background technology exists, the utility model proposes a kind of heating wire circuit protection structure, with the problem avoiding damage equipment and cause circuit overheated.
The utility model proposes a kind of heating wire circuit protection structure, comprising: power module and load blocks, wherein:
Be provided with for controlling the circuit switch module mutually switched between many circuits between described power module and load blocks;
The input termination power module of described circuit switch module, the output load blocks of circuit switch module, at least one branch road module is provided with between circuit switch module and load blocks, and the resistance value of branch road module is greater than the resistance value between circuit switch module and load blocks, the input of branch road module is connected with the output of circuit switch module, and the output of branch road module is connected with the input of negative value module; The armature by size of current control action and at least two contacts are provided with in circuit switch module, load blocks and branch road module connect different contacts respectively, armature in circuit switch module and contact are connected the structure controlling element that this contact is connected and power module, and are mutually switched between different contacts by the size of current that power module inputs.
Preferably, fuse is in series with between power module and circuit switch module.
Preferably, circuit switch module comprises at least one current relay.
Preferably, be provided with two branch road modules, and the resistance value of two branch road modules is all greater than the resistance value between circuit switch module and load blocks between circuit switch module and load blocks, the resistance value between two branch road modules increases successively.
Preferably, in branch road module, include at least one resistor, and in two branch road modules, the resistance value of resistor increases successively.
In the utility model, by arranging circuit switch module between power module and load blocks, and between circuit switch module and load blocks, be provided with at least one branch road module, and the resistance value of branch road module is greater than the resistance value between circuit switch module and load blocks; The armature by size of current control action and at least two contacts are provided with in circuit switch module, load blocks and branch road module connect different contacts respectively, armature in circuit switch module and contact are connected the structure controlling element that this contact is connected and power module, and are mutually switched between different contacts by the size of current that power module inputs; During work, when power module output current is in normal value, the armature in circuit switch module connects with the contact being connected load blocks, and out-put supply module via line handover module is connected with load blocks; When power module output current is greater than normal value, armature in circuit switch module connects with the contact being connected branch road module, power module via line handover module is connected with load blocks with branch road module, resistance value due to branch road module is greater than the resistance value between circuit switch module and load blocks, therefore, when the electric current being greater than normal value flows through branch road module, electric current is shunted by branch road module, the electric current entering load blocks reduces, avoid the excessive damage load of electric current, meanwhile, also avoid electric current excessive, cause circuit superheating phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heating wire circuit protection structure that the utility model proposes.
Embodiment
Below, by specific embodiment, the technical solution of the utility model is described in detail.
As shown in Figure 1, Fig. 1 is the structural representation of a kind of heating wire circuit protection structure that the utility model proposes.
With reference to Fig. 1, a kind of heating wire circuit protection structure that the utility model embodiment proposes, comprising: power module 1, load blocks 2 and the circuit switch module 3 for controlling switching mutually between many circuits, wherein:
The input termination power module 1 of circuit switch module 3, the output load blocks 2 of circuit switch module 3, branch road module 4 is provided with between circuit switch module 3 and load blocks 2, and the resistance value of branch road module 4 is greater than the resistance value between circuit switch module 3 and load blocks 2, the input of branch road module 4 is connected with the output of circuit switch module 3, and the output of branch road module 4 is connected with the input of negative value module 2; The armature 31 by size of current control action and at least two contacts 32 are provided with in circuit switch module 3, load blocks 2 and branch road module 4 connect different contacts 32 respectively, armature 31 in circuit switch module 3 and contact 32 are connected the structure controlling element that this contact 32 is connected and power module 1, and are mutually switched between different contacts 32 by the size of current that power module 1 inputs.
In the present embodiment, in order to the safe operation of protective circuit energy, between power module 1 and circuit switch module 3, be in series with fuse 5; In order to protect stage by stage circuit according to the difference of size of current, two branch road modules 4 are set between circuit switch module 3 and load blocks 2, and the resistance value of two branch road modules 4 increases successively and is all greater than the resistance value between circuit switch module 3 and load blocks 2; In circuit switch module 3, arrange three contacts 32, load blocks 2 is connected with three contacts 32 respectively with two branch road modules 4.
The utility model is work like this, and when power module 1 output current is in normal value, the armature 31 in circuit switch module 3 connects with the contact 32 being connected load blocks 2, and out-put supply module 1 via line handover module 3 is connected with load blocks 2, when power module 1 output current is greater than normal value, armature 31 in circuit switch module 3 connects with the contact 32 being connected branch road module 4, power module 1 via line handover module 3 is connected with load blocks 2 with branch road module 4, resistance value due to branch road module 4 is greater than the resistance value between circuit switch module 3 and load blocks 2, therefore, when the electric current being greater than normal value flows through branch road module 4, electric current is shunted by branch road module 4, the electric current entering load blocks 2 reduces, avoid the excessive damage load of electric current, simultaneously, also avoid electric current excessive, cause circuit superheating phenomenon.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (5)
1. a heating wire circuit protection structure, is characterized in that, comprising: power module (1) and load blocks (2), wherein:
Be provided with for controlling the circuit switch module (3) mutually switched between many circuits between power module (1) and load blocks (2);
The input termination power module (1) of circuit switch module (3), the output load blocks (2) of circuit switch module (3), at least one branch road module (4) is provided with between circuit switch module (3) and load blocks (2), and the resistance value of branch road module (4) is greater than the resistance value between circuit switch module (3) and load blocks (2), the input of branch road module (4) is connected with the output of circuit switch module (3), the output of branch road module (4) is connected with the input of negative value module (2), the armature (31) by size of current control action and at least two contacts (32) are provided with in circuit switch module (3), load blocks (2) and branch road module (4) connect different contacts (32) respectively, armature (31) in circuit switch module (3) and contact (32) are connected the structure controlling element that this contact (32) is connected and power module (1), and are mutually switched between different contacts (32) by the size of current that power module (1) inputs.
2. heating wire circuit protection structure according to claim 1, is characterized in that, is in series with fuse (5) between power module (1) and circuit switch module (3).
3. heating wire circuit protection structure according to claim 1, is characterized in that, circuit switch module (3) comprises at least one current relay.
4. heating wire circuit protection structure according to claim 3; it is characterized in that; two branch road modules (4) are provided with between circuit switch module (3) and load blocks (2); and the resistance value of two branch road modules (4) is all greater than the resistance value between circuit switch module (3) and load blocks (2), the resistance value between two branch road modules (4) increases successively.
5. heating wire circuit protection structure according to claim 4; it is characterized in that; include at least one resistor (41) in branch road module (4), and in two branch road modules (4), the resistance value of resistor (41) increases successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312810.0U CN204721621U (en) | 2015-05-14 | 2015-05-14 | A kind of heating wire circuit protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312810.0U CN204721621U (en) | 2015-05-14 | 2015-05-14 | A kind of heating wire circuit protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721621U true CN204721621U (en) | 2015-10-21 |
Family
ID=54320578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520312810.0U Expired - Fee Related CN204721621U (en) | 2015-05-14 | 2015-05-14 | A kind of heating wire circuit protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204721621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812104A (en) * | 2015-05-14 | 2015-07-29 | 安徽省宁国市天成电气有限公司 | Circuit protection structure for heating wire |
-
2015
- 2015-05-14 CN CN201520312810.0U patent/CN204721621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812104A (en) * | 2015-05-14 | 2015-07-29 | 安徽省宁国市天成电气有限公司 | Circuit protection structure for heating wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20200514 |