Overheat alarm brushless synchronous generator

Abstract

The utility model discloses an overheat alarm brushless synchronous generator, and relates to the technical field of brushless motors. Comprising a brushless motor body, a protective cover is fixedly arranged on one side of the outer wall of the brushless motor body, an overheat protection structure is arranged between the brushless motor body and the protective cover, the overheat protection structure comprises a conduction plate, a partition plate, a thermistor, a fixing plate, two electromagnetic induction assemblies and two disconnection assemblies, and the bottom of the outer wall of the conduction plate is fixedly arranged on the brushless motor body. By means of the partition plate, the thermistor, the fixing plate, the electromagnetic induction assemblies and the disconnecting assembly, the disconnecting assembly can be controlled through the two electromagnetic induction assemblies of different specifications, when the thermistor is overheated, the resistance value is reduced, the two electric connecting pieces are electrically connected, and therefore the two electromagnetic induction assemblies of different specifications are powered on; when overheating continues to be kept, one disconnecting assembly is disconnected to trigger alarm, and when overheating continues to be kept, the other disconnecting assembly is disconnected to disconnect the circuit of the brushless motor body.

Description

TECHNICAL FIELD

[0001] The utility model relates to brushless motor technical field, concretely is a kind of overheat alarm brushless synchronous generator. BACKGROUND

[0002] The current brushless synchronous motor is a kind of motor that realizes the synchronous movement between rotor and fixed sub by brushless DC motor controller, it adopts certain electronic control mode, so that rotor can rotate according to fixed frequency, to realize efficient energy conversion.

[0003] The sensitivity of overheat alarm system is not properly set, it can cause false alarm, that is, motor is not really overheated, but alarm system has sent alarm.This can increase unnecessary inspection and downtime, affect production efficiency, on the other hand, if sensitivity is too low, it can also cause false negative, that is, motor has overheated, but alarm system fails to send alarm in time, which can cause more serious failure. INVENTION CONTENTS

[0004] The utility model provides a kind of overheat alarm brushless synchronous generator, by partition, thermistor, fixed plate, electromagnetic induction component and disconnecting component, two different specifications electromagnetic induction components can be used to control disconnecting component, when thermistor overheats and reduces resistance value, to make two electrically conductive sheets electrically connected, to energize two different specifications electromagnetic induction components, make one disconnecting component disconnect, to trigger alarm, when overheat continues to maintain, to make another disconnecting component disconnect, to disconnect the circuit of brushless motor body.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of overheat alarm brushless synchronous generator, comprising:

[0006] Brushless motor body, the outer wall of the brushless motor body one side is equipped with protective cover fixedly;

[0007] Overheat protection structure is located between brushless motor body and protective cover;

[0008] The overheat protection structure includes conducting plate, partition, thermistor, fixed plate, two electromagnetic induction components and two disconnecting components, the outer wall bottom of the conducting plate is fixed on brushless motor body, the outer wall bottom of the partition is fixed on conducting plate, one end of the thermistor is fixed on conducting plate, the other end of the thermistor is fixed on fixed plate, the outer wall top of the fixed plate is fixed in protective cover, two The disconnecting components are mounted on the partition, and the top of the two electromagnetic induction components is mounted on the fixed plate, and the outer wall bottom of the two electromagnetic induction components is embedded in the two disconnecting components respectively.

[0009] The utility model provides a kind of overheat alarm brushless synchronous generator, the outer wall bottom of fixed plate is fixedly embedded with two electric connection sheets, the side of two electric connection sheets mutually close is electrically connected with thermistor connection end.

[0010] As the utility model discloses a kind of overheat alarm brushless synchronous generator, each the disconnecting component includes fixed sleeve, main magnetic block, vice magnetic block, electric connection block, two electric connecting rods and partition frame, the outer wall bottom of fixed sleeve is fixed on partition plate, the outer wall of electric connection block is slidably embedded in fixed sleeve, the outer wall of partition frame is fixedly embedded in fixed sleeve, the outer wall of two electric connecting rods is fixedly embedded in fixed sleeve.

[0011] As the utility model discloses a kind of overheat alarm brushless synchronous generator, the outer wall of main magnetic block is fixedly embedded in partition plate, the outer wall of vice magnetic block is fixedly embedded in electric connection block, main magnetic block and vice magnetic block are mutually magnetic.

[0012] As the utility model discloses a kind of overheat alarm brushless synchronous generator, each the electromagnetic induction component includes fixed frame, electromagnetic coil and electromagnetic rod, the outer wall top of fixed frame is fixed on fixed plate, the electromagnetic coil is wound on fixed frame, and the electromagnetic coil is electrically connected with electric connection sheet.

[0013] As the utility model discloses a kind of overheat alarm brushless synchronous generator, the outer wall of electromagnetic rod is fixedly embedded in fixed frame, and the outer wall bottom end of electromagnetic rod is embedded in fixed sleeve.

[0014] As the utility model discloses a kind of overheat alarm brushless synchronous generator, the outer wall bottom of conduction plate is fixedly provided with four heat-conducting sheets, and the outer wall of four heat-conducting sheets is slidably embedded in brushless motor body.

[0015] The utility model provides a kind of overheat alarm brushless synchronous generator. It has the following beneficial effects:

[0016] (1) the overheat alarm brushless synchronous generator, through partition plate, thermistor, fixed plate, electromagnetic induction component and disconnecting component, can utilize two different specifications electromagnetic induction components to control disconnecting component, when thermistor overheating reduces resistance, to make two electric connection sheets electrically connected, to make two different specifications electromagnetic induction components be electrified, make one disconnecting component disconnect, to trigger alarm, when overheat continues to keep, to make another disconnecting component disconnect, to disconnect the circuit of brushless motor body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2It is a sectional view of the utility model;

[0019] Figure 3 It is an explosion view of the utility model;

[0020] Figure 4 It is a front view of the electromagnetic induction assembly of the utility model;

[0021] Figure 5 It is a sectional view of the electromagnetic induction assembly of the utility model;

[0022] Figure 6 It is an explosion view of the electromagnetic induction assembly of the utility model;

[0023] Figure 7 It is a front view of the disconnecting assembly of the utility model;

[0024] Figure 8 It is a sectional view of the disconnecting assembly of the utility model;

[0025] Figure 9 It is an explosion view of the disconnecting assembly of the utility model.

[0026] In the drawing: 1, brushless motor body; 2, protective cover; 3, conducting plate; 4, partition plate; 5, thermistor; 6, fixed plate; 7, electromagnetic induction assembly; 8, disconnecting assembly; 9, electrically connected piece; 10, heat conducting piece; 701, fixed frame; 702, electromagnetic coil; 703, electromagnetic rod; 801, fixed sleeve; 802, main magnetic block; 803, auxiliary magnetic block; 804, electrically connected block; 805, electrically connected rod; 806, partition frame. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-9 The utility model provides a kind of technical scheme: a kind of overheat alarm brushless synchronous generator, comprising:

[0029] Brushless motor body 1, the outer wall of brushless motor body 1 side is fixedly provided with protective cover 2;

[0030] Overheat protection structure, between brushless motor body 1 and protective cover 2;

[0031] The overheating protection structure comprises a conducting plate 3, a partition plate 4, a thermistor 5, a fixing plate 6, two electromagnetic induction assemblies 7 and two disconnecting assemblies 8. The outer wall bottom of the conducting plate 3 is fixed on the brushless motor body 1. The outer wall bottom of the partition plate 4 is fixed on the conducting plate 3. One end of the thermistor 5 is fixed on the conducting plate 3. The other end of the thermistor 5 is fixed on the fixing plate 6. The outer wall top of the fixing plate 6 is fixed in the protection cover 2. The two disconnecting assemblies 8 are both mounted on the partition plate 4. The top of the two electromagnetic induction assemblies 7 is both mounted on the fixing plate 6. The outer wall bottom of the two electromagnetic induction assemblies 7 is respectively embedded in the two disconnecting assemblies 8.

[0032] In the embodiment, the brushless motor body 1 can make the rotor rotate at a fixed frequency, thereby realizing efficient energy conversion. The protection cover 2 can protect the overheating protection structure. The conducting plate 3 can receive the temperature of the brushless motor body 1, so that the thermistor 5 is inducted and the resistance value of the thermistor 5 is reduced. The two electric connection pieces 9 are electrically connected, so that the two electromagnetic induction assemblies 7 of different specifications are powered on, one of the disconnecting assemblies 8 is disconnected, and the alarm is triggered. When the overheating continues, the other disconnecting assembly 8 is disconnected, and the circuit of the brushless motor body 1 is disconnected.

[0033] Specifically, the outer wall bottom of the fixing plate 6 is fixedly embedded with two electric connection pieces 9. The side close to each other of the two electric connection pieces 9 is electrically connected with the connection end of the thermistor 5.

[0034] In the embodiment, the two electric connection pieces 9 are electrically connected with the connection end of the thermistor 5, so that the thermistor 5 can control the two electromagnetic induction assemblies 7. The specifications of the two electromagnetic induction assemblies 7 are different.

[0035] Specifically, each disconnecting assembly 8 comprises a fixing sleeve 801, a main magnetic block 802, a secondary magnetic block 803, an electric connection block 804, two electric connection rods 805 and a partition frame 806. The outer wall bottom of the fixing sleeve 801 is fixed on the partition plate 4. The outer wall of the electric connection block 804 is slidingly embedded in the fixing sleeve 801. The outer wall of the partition frame 806 is fixedly embedded in the fixing sleeve 801. The outer wall of the two electric connection rods 805 is fixedly embedded in the fixing sleeve 801.

[0036] In the embodiment, the electric connection block 804 can stably slide in the fixing sleeve 801. When the electric connection block 804 is at the bottom, the two electric connection rods 805 are electrically connected. When the electric connection block 804 is at the top, the two electric connection blocks 804 are disconnected. The partition frame 806 can prevent the electric connection block 804 from directly contacting the electromagnetic rod 703.

[0037] Specifically, the outer wall of the main magnetic block 802 is fixedly embedded in the partition plate 4, the outer wall of the auxiliary magnetic block 803 is fixedly embedded in the electric connection block 804, and the main magnetic block 802 and the auxiliary magnetic block 803 are magnetically attracted to each other.

[0038] In this embodiment, the mutual magnetic attraction between the main magnetic block 802 and the auxiliary magnetic block 803 can ensure that the electric connection block 804 is always in the lower position without external force.

[0039] Specifically, each electromagnetic induction assembly 7 includes a fixed frame 701, an electromagnetic coil 702, and an electromagnetic rod 703. The outer wall of the fixed frame 701 is fixedly arranged on the top of the fixed plate 6. The electromagnetic coil 702 is wound around the fixed frame 701. The electromagnetic coil 702 is electrically connected to the electrically conductive sheet 9.

[0040] In this embodiment, the fixed frame 701 can stably wind the electromagnetic coil 702. The electromagnetic coil 702 is electrically connected to the electrically conductive sheet 9. In the case of power supply, the electromagnetic rod 703 inside will generate magnetism.

[0041] Specifically, the outer wall of the electromagnetic rod 703 is fixedly embedded in the fixed frame 701, and the outer wall of the bottom end of the electromagnetic rod 703 is embedded in the fixed sleeve 801.

[0042] In this embodiment, the electromagnetic rod 703 generating magnetism can attract the electric connection block 804, so that the electric connection block 804 is in the upper position.

[0043] Specifically, the outer wall of the bottom of the conductive plate 3 is fixedly provided with four heat-conducting sheets 10, and the outer walls of the four heat-conducting sheets 10 are slidingly embedded in the brushless motor body 1.

[0044] In this embodiment, the four heat-conducting sheets 10 can stably and timely transport the heat around the brushless motor body 1 to the conductive plate 3, so that the thermistor 5 can be timely sensed.

[0045] When in use, the brushless motor body 1 can make the rotor rotate at a fixed frequency, so as to realize high-efficiency energy conversion, the protective cover 2 can protect the overheat protection structure, the conduction plate 3 can receive the temperature of the brushless motor body 1, so that the thermistor 5 is inducted, the temperature is increased, the thermistor 5 reduces the resistance value, two electric connecting sheets 9 are electrically connected, so that two electromagnetic induction components 7 of different specifications are electrified, one of the two electromagnetic induction components 7 is disconnected, so as to trigger the alarm, when the overheat continues to keep, the other one of the two electromagnetic induction components 7 is disconnected, so as to disconnect the circuit of the brushless motor body 1, the two electric connecting sheets 9 are electrically connected with the connecting end of the thermistor 5, so that the thermistor 5 can control the two electromagnetic induction components 7, the two electromagnetic induction components 7 are of different specifications, the fixed sleeve 801 can make the electric connecting block 804 stably slide in the inside, when the electric connecting block 804 is at the bottom, two electric connecting rods 805 are electrically connected, when the electric connecting block 804 is at the top, the two electric connecting blocks 804 are disconnected, the partition frame 806 can prevent the electric connecting block 804 from directly contacting with the electromagnetic rod 703, the main magnetic block 802 and the auxiliary magnetic block 803 can ensure that the electric connecting block 804 is always at the bottom under the action of no external force, the fixed frame 701 can make the electromagnetic coil 702 stably wind, the electromagnetic coil 702 is electrically connected with the electric connecting sheet 9, and in the electrified condition, the electromagnetic rod 703 in the electromagnetic coil 702 can generate magnetism, the electromagnetic rod 703 generating magnetism can attract the electric connecting block 804, so that the electric connecting block 804 is at the top, and the four heat-conducting sheets 10 can stably and timely convey the temperature around the brushless motor body 1 to the conduction plate 3, so that the thermistor 5 can be inducted in time.

[0046] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An overheat alarm brushless synchronous generator characterized by, Include: Brushless motor body (1), the outer wall side of the brushless motor body (1) is fixedly provided with a protective cover (2); The overheat protection structure is arranged between the brushless motor body (1) and the protective cover (2); The overheat protection structure includes a conducting plate (3), a partition plate (4), a thermistor (5), a fixed plate (6), two electromagnetic induction components (7) and two disconnecting components (8), the outer wall bottom of the conducting plate (3) is fixedly arranged on the brushless motor body (1), the outer wall bottom of the partition plate (4) is fixedly arranged on the conducting plate (3), one end of the thermistor (5) is fixedly arranged on the conducting plate (3), the other end of the thermistor (5) is fixedly arranged on the fixed plate (6), the outer wall top of the fixed plate (6) is fixedly arranged in the protective cover (2), two disconnecting components (8) are mounted on the partition plate (4), the top of two electromagnetic induction components (7) is mounted on the fixed plate (6), and the outer wall bottom of two electromagnetic induction components (7) is respectively embedded in two disconnecting components (8).

2. A superheat alarm brushless synchronous generator according to claim 1, characterized in that: The outer wall bottom of the fixed plate (6) is fixedly embedded with two electrically connected sheets (9), and the side close to each other of the two electrically connected sheets (9) is electrically connected with the connecting end of the thermistor (5).

3. A superheat alarm brushless synchronous generator according to claim 2, characterized in that: Each disconnecting component (8) includes a fixed sleeve (801), a main magnetic block (802), a secondary magnetic block (803), an electrically connected block (804), two electrically connected rods (805) and a partition frame (806), the outer wall bottom of the fixed sleeve (801) is fixedly arranged on the partition plate (4), the outer wall of the electrically connected block (804) is slidingly embedded in the fixed sleeve (801), the outer wall of the partition frame (806) is fixedly embedded in the fixed sleeve (801), and the outer wall of two electrically connected rods (805) is fixedly embedded in the fixed sleeve (801).

4. A superheat alarm brushless synchronous generator according to claim 3, characterized in that: The outer wall of the main magnetic block (802) is fixedly embedded in the partition plate (4), the outer wall of the secondary magnetic block (803) is fixedly embedded in the electrically connected block (804), and the main magnetic block (802) and the secondary magnetic block (803) are magnetically connected.

5. A superheat alarm brushless synchronous generator according to claim 4, characterized in that: Each electromagnetic induction component (7) includes a fixed frame (701), an electromagnetic coil (702) and an electromagnetic rod (703), the outer wall top of the fixed frame (701) is fixedly arranged on the fixed plate (6), the electromagnetic coil (702) is wound on the fixed frame (701), and the electromagnetic coil (702) is electrically connected with the electrically connected sheet (9).

6. A superheat alarm brushless synchronous generator according to claim 5, characterized in that: The outer wall of the electromagnetic rod (703) is fixedly embedded in the fixed frame (701), and the outer wall bottom end of the electromagnetic rod (703) is embedded in the fixed sleeve (801).

7. A superheat alarm brushless synchronous generator according to claim 6, characterized in that: The outer wall bottom of the conducting plate (3) is fixedly provided with four heat conduction sheets (10), and the outer wall of the four heat conduction sheets (10) is slidingly embedded in the brushless motor body (1).

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