CN203014348U - A motor protector - Google Patents
A motor protector Download PDFInfo
- Publication number
- CN203014348U CN203014348U CN 201220647567 CN201220647567U CN203014348U CN 203014348 U CN203014348 U CN 203014348U CN 201220647567 CN201220647567 CN 201220647567 CN 201220647567 U CN201220647567 U CN 201220647567U CN 203014348 U CN203014348 U CN 203014348U
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- China
- Prior art keywords
- motor
- output interface
- input interface
- protection circuit
- lightning protection
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Abstract
The utility model belongs to the field of motor technology and especially relates to a motor protector. The utility model resolves problems of a small application range and a bad protection effect of a conventional motor. The motor protector is connected between a motor and a power supply and comprises an input interface and an output interface. A fault connection/overcurrent protection circuit and a lightning protection circuit are connected between the input interface and output interface. The fault connection/overcurrent protection circuit and the lightning protection circuit are connected between the input interface and output interface in parallel. Compared with a product in the prior art, the motor protector has advantages of 1 a simple structure, strong reliability, a wide application range, and being suitable for AC motors and advantages of 2 good protection effects, preventing lightning from damaging the motors, and effectively preventing the motors from being damaged by overcurrent when fault connection is generated.
Description
Technical field
The utility model belongs to technical field of motors, especially relates to a kind of motor protecter.
Background technology
Motor protecter be prevent motor in running due to under-voltage, overvoltage, the device that overcurrent causes motor to damage.Existing motor protecter exists: the scope of application is little, and general motor protecter can only be applicable to the motor of a type, is only applicable to alternating current machine as ac motor protector, and direct-current motor protector is only applicable to direct current machine, can not be general; Motor the wiring wrong often occurs and causes motor damage and thundery sky motor easily by the thunder and lightning problem such as break when wiring.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of protector for electric machine [application number: 93241756.6], has the power circuit that working power is provided for protector, and the multi-functional electric motor protecting module reaches the control switch of the contactor of being controlled by triode.
Such scheme is to a certain degree to have alleviated existing motor protecter protection range little, the problem that AC/DC motor can't be general, but this scheme still exists: complex structure, poor reliability, protection weak effect during the wrong line, the problem such as lightning protection effect is poor.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of simple in structure, applied widely, the motor protecter that overcurrent and lightning protection effect are good.
For achieving the above object; the utility model has adopted following technical proposal: this motor protecter; be connected between motor and power supply; it is characterized in that; this protector comprises input interface and output interface; be connected with wrong/current foldback circuit and lightning protection circuit between described input interface and output interface, described wrong/current foldback circuit and lightning protection circuit are connected in parallel between input interface and output interface.
In above-mentioned motor protecter, described wrong/current foldback circuit comprises three wires that are connected on input interface and output interface, is serially connected with respectively the first fuse on every wire.
In above-mentioned motor protecter, described lightning protection circuit comprises four wires that are connected on input interface and output interface, is serially connected with respectively the second fuse on every wire.
In above-mentioned motor protecter, this protector also comprises housing, and described input interface, output interface, wrong/current foldback circuit and lightning protection circuit all are arranged in housing.
In above-mentioned motor protecter, described input interface and output interface have respectively first make contact, the second contact point, the 3rd contact point and the 4th contact point.
Compared with prior art, the advantage of this motor protecter is: 1, simple and reasonable, reliability is strong, and is applied widely, is applicable to AC/DC motor; 2, protection is effective, prevents the thunder and lightning motor of breaking, overcurrent motor damage when effectively preventing the wrong line.
Description of drawings
The structural representation that Fig. 1 provides for the utility model.
In figure, input interface 1, output interface 2, wrong/current foldback circuit 3, the first wire 31, the first fuse 32, lightning protection circuit 4, the second wire 41, the second fuse 42, housing 5, first make contact H, the second contact point M, the 3rd contact point L, the 4th contact point N.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1; this motor protecter; be connected between motor and power supply; this protector comprises input interface 1 and output interface 2; be connected with wrong/current foldback circuit 3 and lightning protection circuit 4 between input interface 1 and output interface 2, wrong/current foldback circuit 3 and lightning protection circuit 4 are connected in parallel between input interface 1 and output interface 2.This protector also comprises housing 5, and input interface 1, output interface 2, wrong/current foldback circuit 3 and lightning protection circuit 4 all are arranged in housing 5.
Wrong/current foldback circuit 3 comprises three the first wires 31 that are connected on input interface 1 and output interface 2, is serially connected with respectively the first fuse 32 on every the first wire 31.Lightning protection circuit 4 comprises four the second wires 41 that are connected on input interface 1 and output interface 2, is serially connected with respectively the second fuse 42 on every the second wire 41.Input interface 1 has respectively first make contact H, the second contact point M, the 3rd contact point L and the 4th contact point N with output interface 2.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as input interface 1, output interface 2, wrong/current foldback circuit 3, the first wire 31, the first fuse 32, lightning protection circuit 4, the second wire 41, the second fuse 42, housing 5, first make contact H, the second contact point M, the 3rd contact point L, the 4th contact point N, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (5)
1. motor protecter; be connected between motor and power supply; it is characterized in that; this protector comprises input interface (1) and output interface (2); be connected with wrong/current foldback circuit (3) and lightning protection circuit (4) between described input interface (1) and output interface (2), described wrong/current foldback circuit (3) and lightning protection circuit (4) are connected in parallel between input interface (1) and output interface (2).
2. motor protecter according to claim 1; it is characterized in that; described wrong/current foldback circuit (3) comprises three the first wires (31) that are connected on input interface (1) and output interface (2), is serially connected with respectively the first fuse (32) on every the first wire (31).
3. motor protecter according to claim 1; it is characterized in that; described lightning protection circuit (4) comprises four the second wires (41) that are connected on input interface (1) and output interface (2), is serially connected with respectively the second fuse (42) on every the second wire (41).
4. according to claim 1 and 2 or 3 described motor protecters; it is characterized in that; this protector also comprises housing (5), and described input interface (1), output interface (2), wrong/current foldback circuit (3) and lightning protection circuit (4) all are arranged in housing (5).
5. motor protecter according to claim 4, is characterized in that, described input interface (1) has respectively first make contact (H), the second contact point (M), the 3rd contact point (L) and the 4th contact point (N) with output interface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647567 CN203014348U (en) | 2012-11-30 | 2012-11-30 | A motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647567 CN203014348U (en) | 2012-11-30 | 2012-11-30 | A motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014348U true CN203014348U (en) | 2013-06-19 |
Family
ID=48605905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647567 Expired - Fee Related CN203014348U (en) | 2012-11-30 | 2012-11-30 | A motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356418A (en) * | 2015-10-21 | 2016-02-24 | 上海新晃空调设备股份有限公司 | Wiring error prevention device and method for single-phase AC three-speed motor |
-
2012
- 2012-11-30 CN CN 201220647567 patent/CN203014348U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356418A (en) * | 2015-10-21 | 2016-02-24 | 上海新晃空调设备股份有限公司 | Wiring error prevention device and method for single-phase AC three-speed motor |
| CN105356418B (en) * | 2015-10-21 | 2017-11-14 | 上海新晃空调设备股份有限公司 | Wiring error protector and method for single phase ac three-speed motor |
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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: 20130619 Termination date: 20131130 |