Motor with heating monitoring protection function

Abstract

The utility model relates to a motor with heating monitoring protection, which comprises a motor shell and a motor inner core, the motor shell comprises a front cover and a rear cover, an output shaft of the motor inner core penetrates out of the front cover, a control circuit board is arranged in the rear cover, and one surface of the front cover facing the rear cover is provided with a heat conduction mounting hole; the LED lamp further comprises an NTC assembly, the NTC assembly is arranged in the heat conduction installation hole through heat conduction glue, and a lead of the NTC assembly is electrically connected with the control circuit board.

Description

TECHNICAL FIELD

[0001] The utility model relates to brushless motor technical field especially relates to a motor with heat monitoring protection. BACKGROUND

[0002] With the continuous development of society, the global energy saving and consumption reducing standard is higher and higher, and the industry also improves the energy consumption ratio and power density of the motor, so the motor needs to be designed and updated accordingly. The existing high-speed motor will inevitably generate a large amount of heat due to high-speed rotation, and the temperature of the motor needs to be measured more accurately, because the control circuit board of the motor is assembled on the rear cover of the motor, and the temperature sensor of the existing motor is also arranged on the rear cover for convenient wiring. The temperature measurement of this way has hysteresis, which leads to the fact that the inner core of the motor cannot be effectively intervened when the working temperature exceeds. UTILITY MODEL CONTENTS

[0003] In view of the above situation, it is necessary to provide a motor with heat monitoring protection with accurate temperature measurement.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme: a motor with heat monitoring protection, a motor shell and a motor inner core, the motor shell includes a front cover and a rear cover, the output shaft of the motor inner core passes out from the front cover, the rear cover is provided with a control circuit board, and one side of the front cover facing the rear cover is provided with a heat conduction mounting hole; further comprising an NTC component, the NTC component is arranged in the heat conduction mounting hole through heat conduction glue, and the lead wire of the NTC component is electrically connected with the control circuit board.

[0005] Further, a mounting groove opening towards the rear cover is arranged on one side of the heat conduction mounting hole, and the lead wire is fixed in the mounting groove in a U-shaped mode.

[0006] Further, the lead wire in the mounting groove and the front cover have adhesive or heat conduction glue.

[0007] Further, it further comprises an NTC installation auxiliary block, the NTC installation auxiliary block is fixed in the mounting groove, a wire passing groove is arranged between the NTC installation auxiliary block and the front cover, the lead wire of the NTC component passes through the wire passing groove and is wound out from the bottom of the NTC installation auxiliary block in a U-shaped mode, and the wire passing groove has the adhesive or the heat conduction glue.

[0008] Further, the NTC installation auxiliary block has a blocking arm extending towards the heat conduction mounting hole.

[0009] Further, the NTC installation auxiliary block has a protruding block extending out of the mounting groove, and the protruding block is provided with a dismounting pull hole. Further, the NTC installation auxiliary block has a protruding block extending out of the mounting groove, and the protruding block is provided with a dismounting pull hole.

[0010] Further, the wire passing groove comprises a side groove and a bottom groove connected with each other, and the side groove and the bottom groove are connected in an L shape, and the side groove is located on one side of the NTC auxiliary mounting block close to the heat-conducting mounting hole.

[0011] Further, the motor housing further comprises a middle shell, one end of the middle shell is connected with the front cover, and the other end of the middle shell is connected with the rear cover.

[0012] The NTC assembly is arranged in the heat-conducting mounting hole on the front cover, is closer to the output shaft of the motor, and the temperature at the position is higher than that of the rear cover, so that the temperature at the position can be acquired in time, the operation state control of the motor can be more effectively implemented, the temperature rise of the motor is reduced, the working efficiency of the motor is improved, and the cost of the motor is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic view of the front cover and the NTC assembly of the motor with heat monitoring protection according to an embodiment of the utility model;

[0014] Figure 2 is a structure schematic view of the front cover of the motor with heat monitoring protection according to an embodiment of the utility model;

[0015] Figure 3 is an assembly structure schematic view of the NTC auxiliary mounting block of the motor with heat monitoring protection according to an embodiment of the utility model;

[0016] Figure 4 is a structure schematic view of the NTC auxiliary mounting block of the motor with heat monitoring protection according to an embodiment of the utility model;

[0017] Figure 5 is an appearance structure schematic view of the motor with heat monitoring protection according to an embodiment of the utility model;

[0018] Figure 6 is a structure schematic view of the motor with heat monitoring protection according to an embodiment of the utility model.

[0019] Label explanation:

[0020] 100, motor housing; 110, front cover; 111, heat-conducting mounting hole; 112, mounting groove; 120, rear cover;

[0021] 130, middle shell; 200, motor inner core; 300, control circuit board; 400, NTC assembly;

[0022] 410, lead wire; 411, U-shaped bending part; 500, NTC auxiliary mounting block; 510, wire passing groove;

[0023] 511, side slot; 512, bottom slot; 520, blocking arm; 530, protrusion; 531, dismounting pull hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model a kind of motor with heating monitoring protection is further detailed below with attached drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model, and not used to limit the utility model.

[0025] Please refer to Figures 1-6 A kind of motor with heating monitoring protection, motor housing 100 and motor inner core 200, motor housing 100 includes front cover 110 and rear cover 120, the output shaft of motor inner core 200 is worn from front cover 110, control circuit board 300 is equipped in rear cover 120, the side of front cover 110 facing rear cover 120 is equipped with heat-conducting mounting hole 111;It also includes NTC component 400, NTC component 400 is configured in heat-conducting mounting hole 111 by heat-conducting adhesive, the lead 410 of NTC component 400 is electrically connected with control circuit board 300.

[0026] NTC component 400 is placed in heat-conducting mounting hole 111 on front cover 110, more close to the output shaft of motor, and the temperature here is higher than the temperature of rear cover 120, timely obtain the temperature here, can more effectively implement the operation state control to motor, reduce the temperature rise of motor, to improve motor work efficiency, reduce the cost of motor.

[0027] Please refer to Figure 1 Heat-conducting mounting hole 111 is equipped with mounting groove 112 opening towards rear cover 120 on one side, and lead 410 is fixed in mounting groove 112 in U type. Lead 410 is provided with U-shaped bending part 411, so that lead 410 is still not directly pulled out NTC component 400 even if being stretched. U-shaped bending part 411 can avoid random movement by shaping, and is convenient to install.

[0028] Preferably, lead 410 in mounting groove 112 and front cover 110 have adhesive or heat-conducting adhesive. That is, U-shaped bending part 411 is fixed in mounting groove 112 by adhesive, other adhesive can be used according to the need, and U-shaped bending part 411 will not move randomly after adhesive shaping.

[0029] Please refer to Figure 3 And Figure 4The NTC mounting auxiliary block 500 is fixed in the mounting groove 112, and a wire passing groove 510 is arranged between the NTC mounting auxiliary block 500 and the front cover 110; the lead wire 410 of the NTC assembly 400 passes through the wire passing groove 510 and is bent in a U shape from the bottom of the NTC mounting auxiliary block 500, and the wire passing groove 510 is filled with adhesive or heat-conducting glue.

[0030] Please refer to Figure 3 and Figure 4 The NTC mounting auxiliary block 500 has a blocking arm 520 extending towards the heat-conducting mounting hole 111.

[0031] Please refer to Figure 3 The NTC mounting auxiliary block 500 has a protruding block 530 extending out of the mounting groove 112, and the protruding block 530 is provided with a dismounting pull hole 531.

[0032] Please refer to Figure 4 The wire passing groove 510 includes a side groove 511 and a bottom groove 512 connected with each other, the side groove 511 and the bottom groove 512 are connected in an L shape, and the side groove 511 is located on the side of the NTC mounting auxiliary block 500 close to the heat-conducting mounting hole 111.

[0033] Please refer to Figure 5 and Figure 6 The motor housing 100 further includes a middle shell 130, one end of the middle shell 130 is connected with the front cover 110, and the other end of the middle shell 130 is connected with the rear cover 120.

[0034] It can be understood that NTC means Negative Temperature Coefficient.

[0035] It can be understood that the heat-conducting glue is generally solidified by heating after being injected into the heat-conducting mounting hole 111.

[0036] It should be noted that if the present application involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature.

[0038] To sum up, the utility model provides a kind of motor with heating monitoring protection, NTC component is placed on the heat-conducting mounting hole of front cover, more close to the output shaft of motor, and the temperature here is higher than the temperature of rear cover, timely obtain the temperature here, can more effectively implement the operation state control of motor, reduce the temperature rise of motor, to improve motor work efficiency, reduce motor cost.

[0039] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with preferred embodiment, however, it is not used to limit the utility model, any skilled person in the art, without departing from the technical scheme range of the utility model, can make some changes or modification to equivalent embodiment of equivalent change using the disclosed technical content, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model, all still belong to the range of the technical scheme of the utility model.

Claims

1. A motor with heat monitoring protection, a motor housing and a motor inner core, the motor housing comprises a front cover and a rear cover, an output shaft of the motor inner core passes out from the front cover, a control circuit board is arranged in the rear cover, characterized in that, The front cover is provided with a heat-conducting mounting hole on the side facing the rear cover; further comprising an NTC component, which is arranged in the heat-conducting mounting hole through heat-conducting glue, and the lead wire of the NTC component is electrically connected with the control circuit board.

2. An electric machine with heat monitoring protection according to claim 1, characterized in that, A mounting groove facing the opening of the rear cover is arranged on one side of the heat-conducting mounting hole, and the lead wire is fixed in the mounting groove in a U-shaped form.

3. An electric machine with heat monitoring protection according to claim 2, characterized in that, The lead wire in the mounting groove is provided with adhesive or heat-conducting glue between the lead wire and the front cover.

4. An electric machine with heat monitoring protection according to claim 3, characterized in that, Further comprising an NTC mounting auxiliary block, which is fixed in the mounting groove, and a wire passing groove is arranged between the NTC mounting auxiliary block and the front cover, the lead wire of the NTC component passes through the wire passing groove and is wound out from the bottom of the NTC mounting auxiliary block in a U-shaped form, and the wire passing groove is provided with the adhesive or the heat-conducting glue.

5. An electric machine with heat monitoring protection according to claim 4, characterized in that, The NTC mounting auxiliary block has a blocking arm extending to the heat-conducting mounting hole.

6. An electric machine with heat monitoring protection according to claim 4, characterized in that, The NTC mounting auxiliary block has a protruding block extending backward out of the mounting groove, and a dismounting pull hole is arranged on the protruding block.

7. An electric machine with heat monitoring protection according to claim 4, characterized in that, The wire passing groove comprises a side groove and a bottom groove connected in communication, the side groove and the bottom groove are connected in an L-shaped form, and the side groove is located on the side of the NTC mounting auxiliary block close to the heat-conducting mounting hole.

8. The motor with heat generation monitoring protection according to claim 1, wherein, The motor housing further comprises a middle shell, one end of the middle shell is connected with the front cover, and the other end of the middle shell is connected with the rear cover.

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