Motor temperature sensor

Abstract

The utility model belongs to the technical field of temperature sensors, and particularly relates to a motor temperature sensor, which comprises a temperature sensing module and a spiral connecting lead, the spiral connecting lead is electrically connected with the temperature sensing module, the temperature sensing module is movably clamped in an inner cavity of a mounting frame, an arc-shaped guide frame is integrally formed on the lower surface of the mounting frame, and the arc-shaped guide frame is movably clamped in the inner cavity of the mounting frame. A fixing hoop is arranged below the mounting frame, the fixing hoop is composed of an upper hoop shell and a lower hoop shell, guide grooves are formed in the surfaces of the upper hoop shell and the lower hoop shell, the guide grooves in the surfaces of the upper hoop shell and the lower hoop shell are connected end to end, the arc-shaped guide frame is slidably connected with the guide grooves, and a positioning clamping groove is formed in the inner wall of the upper hoop shell. The positioning clamping grooves are distributed at equal intervals; the temperature sensing module is clamped in the mounting frame, and is fixed on the surface of the motor through the matching of the upper hoop shell and the lower hoop shell, so that the rapid assembly of the temperature sensing module and the motor can be realized, and the maintenance and replacement of the temperature sensor are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically to a motor temperature sensor. Background Technology

[0002] The primary function of a motor temperature sensor is to monitor the motor's temperature to prevent damage from overheating, thereby protecting the motor's performance and lifespan. Specifically, the temperature sensor can: Real-time temperature monitoring: Installed inside or outside the motor, it monitors the motor's temperature in real time, especially the stator winding temperature. Triggering protection measures: When the temperature exceeds a set value, the system will issue an alarm or cut off the power to prevent the motor from overheating. Providing data feedback: It transmits temperature data to the motor controller to help optimize motor operating efficiency. Through these functions, the temperature sensor ensures the motor operates within a safe temperature range, extending its lifespan and improving system reliability.

[0003] Currently, invention patent CN113675999B discloses a temperature sensor for the stator of a new energy motor and its assembly method, including a silicone rubber sleeve, a temperature sensor body, a temperature sensor lead, and an enameled wire. The temperature sensor body is located at the opening of one end of the silicone rubber sleeve, and the temperature sensor lead is located inside the silicone rubber sleeve. One end of the temperature sensor lead is electrically connected to the temperature sensor body, and the other end extends through the outside of the silicone rubber sleeve. The enameled wire includes a long section, a short section, and a curved section. The long section is inserted into the silicone rubber sleeve, the short section is attached to the outer wall of the silicone rubber sleeve, and the two ends of the curved section are fixedly connected to the end faces of the short and long sections away from the temperature sensor body. The short and long sections are arranged in parallel. This invention can extend the service life of the stator and solve the problem that the signal line of the temperature sensor is still naturally placed, resulting in overlap with the stator and easy damage to the signal line during use.

[0004] Existing motor temperature sensors are installed in the stator coils, making it inconvenient to quickly disassemble and reassemble them during use. When the temperature sensor is damaged or malfunctions, the motor needs to be disassembled, making it difficult to quickly repair or replace the temperature sensor, which is very inconvenient. To solve the above problems, this application proposes a motor temperature sensor. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a motor temperature sensor. The temperature sensing module is snapped into the mounting frame and fixed to the motor surface by the matching of the upper and lower hoop shells. This enables quick assembly of the temperature sensing module and the motor, thereby facilitating the maintenance and replacement of the temperature sensor and solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above technical problems, this utility model provides a motor temperature sensor, including a temperature sensing module and a spiral connecting wire. The spiral connecting wire is electrically connected to the temperature sensing module. The temperature sensing module is movably locked in the inner cavity of the mounting frame. An arc-shaped guide frame is integrally formed on the lower surface of the mounting frame.

[0009] The mounting frame is provided with a fixing hoop below it. The fixing hoop is composed of an upper hoop shell and a lower hoop shell. Guide grooves are provided on the surfaces of the upper hoop shell and the lower hoop shell. The guide grooves on the surfaces of the upper hoop shell and the lower hoop shell are connected end to end. The arc-shaped guide frame is slidably connected to the guide groove.

[0010] The inner wall of the upper hoop shell is provided with positioning slots, which are distributed at equal intervals, and the inner wall of the upper hoop shell is engaged with the heat dissipation fins on the surface of the motor through the positioning slots.

[0011] Preferably, splicing grooves are provided on both ends of the upper hoop shell, and the splicing grooves are all dovetail-shaped structures.

[0012] Preferably, both ends of the lower hoop shell are integrally formed with splicing seats, and the splicing seats at both ends of the lower hoop shell are engaged with the splicing groove.

[0013] Preferably, the upper hoop shell has buckles on both ends of its surface, and the buckles are symmetrically distributed on both sides of the upper hoop shell.

[0014] Preferably, the lower hoop shell has locking hooks at the corresponding positions on both ends of its surface, and the locking hooks are used to lock the upper and lower hoop shells.

[0015] Preferably, the arc-shaped guide frame extends into mounting frames at both ends, and fixing screw holes are provided through both ends of the arc-shaped guide frame. Locking screws are spirally connected to both ends of the arc-shaped guide frame through the fixing screw holes, and the locking screws abut against the inner wall of the guide groove.

[0016] Preferably, the side wall of the mounting frame is provided with a clearance groove, and the spiral connecting wire passes through the clearance groove.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. In this utility model, the temperature sensing module is snapped into the mounting frame. The two ends of the upper hoop are snapped into the splicing seats at both ends of the lower hoop through splicing grooves, so that the upper and lower hoops can be spliced ​​into a circular fixed hoop. The locking buckle and locking hook are connected to improve the connection stability of the upper and lower hoops. The fixed hoop can be snapped onto the motor surface, which can realize the rapid assembly of the temperature sensing module and the motor. The inner wall of the upper hoop is snapped into the heat dissipation fins on the motor surface through positioning slots, which can prevent the fixed hoop from rotating on the motor surface during use. At the same time, the positioning slots can increase the contact area between the fixed hoop and the motor surface, improving the monitoring accuracy of the motor temperature.

[0019] 2. In this utility model, the mounting frame can be matched with the arc-shaped guide bracket and the guide groove to allow the temperature sensing module to move on the surface of the fixing hoop. The fixing position of the temperature sensing module can be quickly adjusted. By moving the temperature sensing module to the point where the motor surface temperature is abnormal, the monitoring accuracy of the motor temperature can be improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the motor temperature sensor of this utility model;

[0021] Figure 2 This is a schematic diagram of the mounting frame structure for the motor temperature sensor of this utility model;

[0022] Figure 3 This is a schematic diagram of the upper housing structure of the motor temperature sensor of this utility model;

[0023] Figure 4 This is a schematic diagram of the lower housing structure of the motor temperature sensor of this utility model.

[0024] Figure label:

[0025] 1. Temperature sensing module; 2. Spiral connecting wire; 3. Fixing clamp; 4. Upper clamp shell; 5. Lower clamp shell; 6. Guide groove; 7. Mounting frame; 8. Arc-shaped guide frame; 9. Locking screw; 10. Clearance groove; 11. Positioning slot; 12. Splicing groove; 13. Splicing base; 14. Locking buckle; 15. Locking hook. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4As shown, the motor temperature sensor proposed in this utility model includes a temperature sensing module 1 and a spiral connecting wire 2. The spiral connecting wire 2 is electrically connected to the temperature sensing module 1. The temperature sensing module 1 is movably locked in the inner cavity of the mounting frame 7. An arc-shaped guide frame 8 is integrally formed on the lower surface of the mounting frame 7.

[0028] The mounting frame 7 is provided with a fixing hoop 3 below it. The fixing hoop 3 is composed of an upper hoop shell 4 and a lower hoop shell 5. The upper hoop shell 4 and the lower hoop shell 5 are both provided with guide grooves 6, and the guide grooves 6 on the surfaces of the upper hoop shell 4 and the lower hoop shell 5 are connected end to end. The arc-shaped guide frame 8 is slidably connected to the guide grooves 6.

[0029] The inner wall of the upper hoop 4 is provided with positioning slots 11, which are equidistantly distributed, and the inner wall of the upper hoop 4 is engaged with the heat dissipation fins on the surface of the motor through the positioning slots 11.

[0030] It should be noted that the temperature sensing module 1 is snapped into the mounting frame 7. The two ends of the upper hoop 4 are snapped into the splicing seats 13 at both ends of the lower hoop 5 through the splicing groove 12, so that the upper hoop 4 and the lower hoop 5 can be spliced ​​into a circular fixed hoop 3. The locking buckle 14 and the locking hook 15 are connected to improve the connection stability of the upper hoop 4 and the lower hoop 5. The fixed hoop 3 can be snapped into the motor surface, which can realize the rapid assembly of the temperature sensing module 1 and the motor. The inner wall of the upper hoop 4 is snapped into the heat dissipation fins on the motor surface through the positioning slot 11, which can prevent the fixed hoop 3 from rotating on the motor surface during use. At the same time, the positioning slot 11 can increase the contact area between the fixed hoop 3 and the motor surface, so that the heat on the motor can be quickly transferred to the fixed hoop 3. The fixed hoop 3 transfers the heat to the temperature sensing module 1 through the mounting frame 7 to monitor the motor temperature.

[0031] In this embodiment, as Figure 3 As shown, splicing grooves 12 are provided on both ends of the upper hoop 4. The splicing grooves 12 are all dovetail structures. Both ends of the lower hoop 5 are integrally formed with splicing seats 13. The splicing seats 13 at both ends of the lower hoop 5 are engaged with the splicing grooves 12.

[0032] It should be noted that the splicing base 13 and the splicing groove 12 are engaged, which enables the rapid splicing of the upper hoop 4 and the lower hoop 5.

[0033] In this embodiment, as Figure 3 and Figure 4 As shown, the upper hoop 4 has buckles 14 on both ends of its surface. The buckles 14 are symmetrically distributed on both sides of the upper hoop 4. The lower hoop 5 has hooks 15 on both ends of its surface corresponding to the buckles 14. The buckles 14 and hooks 15 are used to lock the upper hoop 4 and the lower hoop 5.

[0034] It should be noted that the latch 14 and the hook 15 are used together to lock the upper hoop 4 and the lower hoop 5, which can improve the connection stability of the upper hoop 4 and the lower hoop 5.

[0035] In this embodiment, as Figure 2 As shown, the arc-shaped guide frame 8 extends into mounting frames 7 at both ends, and both ends of the arc-shaped guide frame 8 are provided with fixing screw holes. Both ends of the arc-shaped guide frame 8 are spirally connected to locking screws 9 through the fixing screw holes, and the locking screws 9 abut against the inner wall of the guide groove 6.

[0036] It should be noted that the locking screw 9 is threadedly connected to the fixing screw hole, and the locking screw 9 abuts against the inner wall of the guide groove 6, which can lock the mounting frame 7.

[0037] In this embodiment, as Figure 2 As shown, the mounting frame 7 has a clearance groove 10 on its side wall, and the spiral connecting wire 2 passes through the clearance groove 10.

[0038] It should be noted that the spiral connecting wire 2 passes through the recessed groove 10, which can better fix the temperature sensing module 1.

[0039] The working principle and usage of this utility model are as follows: The temperature sensing module 1 is snapped into the mounting frame 7. The two ends of the upper hoop 4 are snapped into the splicing seats 13 at both ends of the lower hoop 5 through splicing grooves 12, so that the upper hoop 4 and the lower hoop 5 can be spliced ​​into a circular fixing hoop 3. The locking buckle 14 and the locking hook 15 are connected to improve the connection stability of the upper hoop 4 and the lower hoop 5. The fixing hoop 3 can be snapped onto the surface of the motor, which can realize the rapid assembly of the temperature sensing module 1 and the motor. The inner wall of the upper hoop 4 is snapped into the heat dissipation fins on the surface of the motor through positioning slots 11, which can prevent the fixing hoop 3 from being damaged by the motor during use. The machine surface rotates, and the contact area between the fixing hoop 3 and the motor surface can be increased through the positioning slot 11, so that the heat on the motor can be quickly transferred to the fixing hoop 3. The fixing hoop 3 then transfers the heat to the temperature sensing module 1 through the mounting frame 7 to monitor the motor temperature. The mounting frame 7 can be matched with the guide groove 6 through the arc-shaped guide bracket 8, so that the temperature sensing module 1 can be moved on the surface of the fixing hoop 3. The fixed position of the temperature sensing module 1 can be quickly adjusted. By moving the temperature sensing module 1 to the point where the motor surface temperature is abnormal, the monitoring accuracy of the motor temperature can be improved.

[0040] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. A motor temperature sensor comprising a temperature sensing module (1) and a helical connection wire (2) electrically connected to the temperature sensing module (1), characterized in that, The temperature sensing module (1) is movably clamped in the inner cavity of the mounting frame (7), and the lower surface of the mounting frame (7) is integrally formed with an arc-shaped guide frame (8); The lower surface of the mounting frame (7) is provided with a fixing hoop (3), the fixing hoop (3) is composed of an upper hoop shell (4) and a lower hoop shell (5), the upper hoop shell (4) and the lower hoop shell (5) are provided with guide grooves (6) on the surfaces, the guide grooves (6) on the surfaces of the upper hoop shell (4) and the lower hoop shell (5) are connected in series, and the arc-shaped guide frame (8) is slidably connected with the guide grooves (6). The inner wall of the upper hoop shell (4) is provided with positioning clamping grooves (11), the positioning clamping grooves (11) are distributed at equal intervals, and the inner wall of the upper hoop shell (4) is clamped with the surface heat dissipation fins of the motor through the positioning clamping grooves (11).

2. The motor temperature sensor of claim 1, wherein The surfaces of the two ends of the upper hoop shell (4) are provided with splicing grooves (12), and the splicing grooves (12) are all dovetail structures.

3. The motor temperature sensor of claim 2, wherein, The lower hoop shell (5) is integrally formed with splicing seats (13) at the two ends, and the splicing seats (13) at the two ends of the lower hoop shell (5) are clamped with the splicing grooves (12).

4. The motor temperature sensor of claim 3, wherein, The surfaces of the two ends of the upper hoop shell (4) are provided with lock buckles (14), and the lock buckles (14) are symmetrically distributed on the surfaces of the two sides of the upper hoop shell (4).

5. The motor temperature sensor of claim 4, wherein, The surfaces of the two ends of the lower hoop shell (5) are provided with lock hooks (15) corresponding to the positions of the lock buckles (14), and the lock buckles (14) and the lock hooks (15) are matched to lock the upper hoop shell (4) and the lower hoop shell (5).

6. The motor temperature sensor of claim 5, wherein, The arc-shaped guide frame (8) extends out of the mounting frame (7) at the two ends, and the arc-shaped guide frame (8) is provided with a fixing wire hole at each end, and the arc-shaped guide frame (8) is spirally connected with a locking screw rod (9) through the fixing wire hole at each end, and the locking screw rod (9) abuts against the inner wall of the guide groove (6).

7. The motor temperature sensor of claim 6, wherein, The side wall of the mounting frame (7) is provided with an emptying groove (10), and the spiral connection wire (2) passes through the emptying groove (10).

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