Flat wire motor end connecting device

Abstract

The utility model relates to the technical field of flat wire motors, and discloses a flat wire motor end connecting device which comprises a flat wire motor body, the upper surface of the flat wire motor body is provided with a three-phase parallel connection copper bar and a temperature sensor, and the outer surface of the three-phase parallel connection copper bar is provided with a dismounting and replacing mechanism used for dismounting and replacing the temperature sensor conveniently. A heat dissipation mechanism for heat dissipation is arranged at the bottom of the outer surface of the flat wire motor body; the dismounting and replacing mechanism comprises a limiting ring, a mounting frame, a bottom plate, a threaded rod and a moving plate; and the limiting ring is fixed on the outer surface of the three-phase parallel copper bar. According to the flat wire motor end connecting device, the limiting ring is arranged on the outer surface of the three-phase parallel connection copper bar, one end of the temperature sensor can be inserted into the limiting ring and attached to the three-phase parallel connection copper bar, then the temperature sensor is matched with the replacement mechanism, and the other end of the temperature sensor can be limited; and therefore, a worker can conveniently mount, replace and replace the device, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat wire motors, in particular to an end connection device of a flat wire motor. Background Art

[0002] The shape of the wire used for the specific stator winding of the flat wire motor has changed from multiple thin round wires to several thick rectangular wires, commonly known as flat wires. The overall structure of the flat wire drive motor is not much different from that of the round wire motor. It basically includes several major parts such as aluminum shell, front and rear bearings, stator assembly, rotor assembly, temperature sensor, resolver, EMC components, etc.

[0003] For example, Chinese patent: CN212392731U discloses a flat wire motor end connection device and a flat wire motor, wherein a flat wire motor end connection device comprises a first copper bar, a second copper bar and a three-phase parallel copper bar, wherein the first copper bar is respectively connected to the three-phase lead wires of the stator winding and the second copper bar, and the second copper bar is used to connect to the controller DC bus; the three-phase parallel copper bar is connected to the neutral point lead wire of the stator winding, the three-phase parallel copper bar is used to reduce the current density per unit cross section, and the three-phase parallel copper bar is provided with a sensor for fixing the temperature sensor The fixed rod and the temperature sensor are used to monitor the temperature of the first copper bar, the second copper bar, the three-phase parallel copper bar and the stator winding. The utility model provides a flat wire motor end connection device and a flat wire motor with a simple structure. While monitoring the temperature of the stator winding, the current density per unit cross section is reduced, thereby improving the problem of circulating current and heating through the flat wire motor when a large current occurs. However, in the utility model, the sensor is fixed to the sensor fixing rod by a fixed sleeve. When the temperature sensor is damaged, it is not convenient to disassemble and replace the temperature sensor, thereby reducing the practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a flat wire motor end connection device, which has the advantages of easy removal and replacement of the temperature sensor, etc., and solves the problem that the sensor is fixed on the sensor fixing rod through a fixing sleeve, and when the temperature sensor is damaged, it is inconvenient to remove and replace the temperature sensor, thereby reducing the practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flat wire motor end connection device, comprising a flat wire motor body, the upper surface of the flat wire motor body is provided with a three-phase parallel copper bar and a temperature sensor, the outer surface of the three-phase parallel copper bar is provided with a replacement mechanism for facilitating the replacement of the temperature sensor, and the bottom of the outer surface of the flat wire motor body is provided with a heat dissipation mechanism for heat dissipation;

[0006] The disassembly and replacement mechanism includes a limit ring, a mounting frame, a base plate, a threaded rod and a movable plate. The limit ring is fixed to the outer surface of the three-phase parallel copper busbar, the mounting frame is fixed to the upper surface of the flat wire motor body, the left and right sides of the base plate are respectively fixedly connected to the bottom between the opposite sides of the left and right side walls of the inner cavity of the mounting frame, the threaded rod is threadedly connected to the upper surface of the mounting frame, the lower surface of the threaded rod passes through the mounting frame and extends to the inner cavity of the mounting frame and is rotatably connected to the upper surface of the movable plate through a bearing.

[0007] By adopting this technical solution, it is convenient for workers to install and replace the temperature sensor, thereby improving practicality.

[0008] Furthermore, a fixing groove is provided in the middle of the opposite side of the bottom plate and the movable plate, and an anti-skid pad is fixed in the inner cavity of the fixing groove, and the anti-skid pad is a rubber pad.

[0009] By adopting this technical solution, the friction between the bottom plate, the moving plate and the temperature sensor is improved.

[0010] Furthermore, the inner cavity size of the fixing groove is matched with the size of one end of the temperature sensor, and the inner diameter of the limiting ring is matched with the outer diameter of the other end of the temperature sensor.

[0011] By adopting this technical solution, one end of the temperature sensor can be inserted into the limiting ring and fit with the three-phase parallel copper busbar, so as to measure the temperature of the surface of the three-phase parallel copper busbar.

[0012] Furthermore, the cross-sectional shape of the mounting frame is an inverted U-shape, and the size of the movable plate is smaller than the size of the inner cavity of the mounting frame.

[0013] By adopting this technical solution, the purpose of facilitating the movement of the movable plate in the inner cavity of the mounting frame is achieved.

[0014] Furthermore, a slide groove is provided on the opposite sides of the left and right side walls of the inner cavity of the mounting frame, and a slider is fixed on the left and right sides of the movable plate, and the slider performs linear up and down motion in the inner cavity of the slide groove.

[0015] By adopting this technical solution, the movement of the movable plate can be limited.

[0016] Furthermore, the heat dissipation mechanism includes a fixing ring, two support rods, a cooling fan and a dustproof mesh cover, wherein the fixing ring is fixed to the bottom of the outer surface of the flat wire motor body, the support rods are fixed to the upper surface of the fixing ring, the dustproof mesh cover is fixed to the top between the opposite sides of the two support rods, and the cooling fan is placed on the inner bottom wall of the dustproof mesh cover.

[0017] By adopting this technical solution, the surface of the three-phase parallel copper busbar is quickly cooled to prevent damage to the flat wire motor body and protect the service life of the flat wire motor body.

[0018] Furthermore, the size of the inner cavity of the dustproof mesh cover is compatible with the size of the cooling fan.

[0019] By adopting this technical solution, the dust-proof mesh cover can reduce the dust from entering the cooling fan.

[0020] Furthermore, the air outlet of the cooling fan is located directly on the left side of the three-phase parallel copper busbar.

[0021] By adopting this technical solution, air can be blown on the surface of the three-phase parallel copper busbar to reduce the surface temperature.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The flat wire motor end connection device is provided with a limiting ring on the outer surface of the three-phase parallel copper busbar. One end of the temperature sensor can be inserted into the limiting ring and fit with the three-phase parallel copper busbar. Then, the other end of the temperature sensor can be limited by cooperating with the replacement mechanism, so that the staff can install and replace it conveniently, which improves the practicality.

[0024] 2. The flat wire motor end connection device can transmit a signal to the controller when the surface temperature of the three-phase parallel copper busbar detected by the temperature sensor exceeds the set value. The controller controls the switch of the cooling fan and blows air to the surface of the three-phase parallel copper busbar, thereby quickly cooling the surface of the three-phase parallel copper busbar, preventing damage to the flat wire motor body and protecting the service life of the flat wire motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the dismantling and replacing mechanism of the utility model;

[0027] Figure 3 This is a schematic diagram of the heat dissipation mechanism structure of the utility model.

[0028] In the figure: 1. Flat wire motor body; 2. Three-phase parallel copper busbar; 3. Temperature sensor; 4. Removal and replacement mechanism; 41. Limiting ring; 42. Mounting frame; 43. Bottom plate; 44. Threaded rod; 45. Moving plate; 46. Fixing groove; 5. Heat dissipation mechanism; 51. Fixing ring; 52. Support rod; 53. Cooling fan; 54. Dustproof mesh cover. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1 A flat wire motor end connection device in this embodiment includes a flat wire motor body 1, a three-phase parallel copper bus 2 and a temperature sensor 3 are provided on the upper surface of the flat wire motor body 1, a replacement mechanism 4 for facilitating the replacement of the temperature sensor 3 is provided on the outer surface of the three-phase parallel copper bus 2, and a heat dissipation mechanism 5 for heat dissipation is provided on the bottom of the outer surface of the flat wire motor body 1.

[0031] See also Figure 2 In order to facilitate the replacement of the temperature sensor 3, the replacement mechanism 4 in this embodiment includes a limit ring 41, a mounting frame 42, a bottom plate 43, a threaded rod 44 and a movable plate 45. The limit ring 41 is fixed to the outer surface of the three-phase parallel copper bus 2, the mounting frame 42 is fixed to the upper surface of the flat wire motor body 1, and the left and right sides of the bottom plate 43 are respectively fixedly connected to the bottom between the opposite sides of the left and right side walls of the inner cavity of the mounting frame 42. The threaded rod 44 is threadedly connected to the upper surface of the mounting frame 42, and the lower surface of the threaded rod 44 penetrates the mounting frame 42 and extends to the inner cavity of the mounting frame 42 and is rotatably connected to the upper surface of the movable plate 45 through a bearing. The threaded rod 44 is rotated, and the rotation of the threaded rod 44 causes it to move upward, and drives the movable plate 45 to move upward in the inner cavity of the mounting frame 42, thereby releasing the limit on the temperature sensor 3.

[0032] In this embodiment, a fixing groove 46 is opened in the middle of the opposite side of the bottom plate 43 and the movable plate 45, and an anti-skid pad is fixed to the inner cavity of the fixing groove 46. The anti-skid pad is a rubber pad. The inner cavity size of the fixing groove 46 is adapted to the size of one end of the temperature sensor 3, and the inner diameter of the limit ring 41 is adapted to the outer diameter of the other end of the temperature sensor 3.

[0033] Among them, the cross-sectional shape of the mounting frame 42 is an inverted U-shape, the size of the movable plate 45 is smaller than the size of the inner cavity of the mounting frame 42, and sliding grooves are provided on the opposite sides of the left and right side walls of the inner cavity of the mounting frame 42. Slide blocks are fixed on the left and right sides of the movable plate 45. The slide blocks make linear movements up and down in the inner cavity of the sliding groove, which can limit the movement of the movable plate 45.

[0034] Afterwards, the temperature sensor 3 can be pulled out through the fixing groove 46, so that one end of it can be pulled out from the inner cavity of the limiting ring 41, and then the temperature sensor 3 can be taken out, and then the replaced temperature sensor 3 can be put back into the inner cavity of the fixing groove 46, and then the threaded rod 44 can be rotated in the opposite direction so that the bottom of the movable plate 45 can press the temperature sensor 3.

[0035] See also Figure 3 In order to facilitate the heat dissipation of the surface of the three-phase parallel copper busbar 2, the heat dissipation mechanism 5 in this embodiment includes a fixing ring 51, two support rods 52, a heat dissipation fan 53 and a dustproof mesh cover 54. The fixing ring 51 is fixed to the bottom of the outer surface of the flat wire motor body 1, the support rod 52 is fixed to the upper surface of the fixing ring 51, and the dustproof mesh cover 54 is fixed to the top between the opposite sides of the two support rods 52. The dustproof mesh cover 54 can reduce the entry of dust and prevent the normal operation of the heat dissipation fan 53 from being affected. The heat dissipation fan 53 is placed on the inner bottom wall of the dustproof mesh cover 54. When the surface temperature of the three-phase parallel copper busbar 2 detected by the temperature sensor 3 exceeds the set value, a signal can be transmitted to the controller, and then the controller controls the switch of the heat dissipation fan 53 to turn on the heat dissipation fan 53. The fan blades in the heat dissipation fan 53 rotate to blow air to the surface of the three-phase parallel copper busbar 2.

[0036] In this embodiment, the size of the inner cavity of the dustproof mesh cover 54 is matched with the size of the cooling fan 53, and the air outlet of the cooling fan 53 is located on the left side of the three-phase parallel copper busbar 2.

[0037] It is understandable that until the temperature detected by the temperature sensor 3 is lower than the set value, the cooling fan 53 can be turned off, thereby quickly cooling the surface of the three-phase parallel copper busbar 2 to prevent damage to the flat wire motor body 1 and protect the service life of the flat wire motor body 1.

[0038] The working principle of the above embodiment is:

[0039] (1) In order to facilitate the staff to replace the damaged temperature sensor 3, first rotate the threaded rod 44. The rotation of the threaded rod 44 causes it to move upward and drives the movable plate 45 to move upward in the inner cavity of the mounting bracket 42, so that the limit on the temperature sensor 3 can be released. Then, the temperature sensor 3 is pulled out through the fixing groove 46, so that one end of it is pulled out from the inner cavity of the limiting ring 41, and then the temperature sensor 3 is taken out. Then, the replaced temperature sensor 3 is put back into the inner cavity of the fixing groove 46, and then the threaded rod 44 is rotated in the opposite direction so that the bottom of the movable plate 45 presses the temperature sensor 3.

[0040] (2) When the surface temperature of the three-phase parallel copper busbar 2 detected by the temperature sensor 3 exceeds the set value, a signal can be transmitted to the controller, and then the controller controls the switch of the cooling fan 53 to turn on the cooling fan 53. The fan blades in the cooling fan 53 rotate to blow air to the surface of the three-phase parallel copper busbar 2 until the temperature detected by the temperature sensor 3 is lower than the set value. The cooling fan 53 can be turned off, thereby quickly cooling the surface of the three-phase parallel copper busbar 2 to prevent damage to the flat wire motor body 1. The dustproof mesh cover 54 can reduce the entry of dust to prevent the normal operation of the cooling fan 53 from being affected.

Claims

1. A flat wire motor end connection device, comprising a flat wire motor body (1), characterized in that: The upper surface of the flat wire motor body (1) is provided with a three-phase parallel copper busbar (2) and a temperature sensor (3); the outer surface of the three-phase parallel copper busbar (2) is provided with a replacement mechanism (4) for facilitating the replacement of the temperature sensor (3); and the bottom of the outer surface of the flat wire motor body (1) is provided with a heat dissipation mechanism (5) for heat dissipation; The disassembly and replacement mechanism (4) comprises a limit ring (41), a mounting frame (42), a bottom plate (43), a threaded rod (44) and a movable plate (45); the limit ring (41) is fixed to the outer surface of the three-phase parallel copper busbar (2); the mounting frame (42) is fixed to the upper surface of the flat wire motor body (1); the left and right sides of the bottom plate (43) are respectively fixedly connected to the bottom between the opposite sides of the left and right side walls of the inner cavity of the mounting frame (42); the threaded rod (44) is threadedly connected to the upper surface of the mounting frame (42); the lower surface of the threaded rod (44) passes through the mounting frame (42) and extends to the inner cavity of the mounting frame (42) and is rotatably connected to the upper surface of the movable plate (45) via a bearing.

2. A flat wire motor end connection device according to claim 1, characterized in that: A fixing groove (46) is provided in the middle of the opposite side of the bottom plate (43) and the movable plate (45), and an anti-skid pad is fixed in the inner cavity of the fixing groove (46), and the anti-skid pad is a rubber pad.

3. A flat wire motor end connection device according to claim 2, characterized in that: The inner cavity size of the fixing groove (46) matches the size of one end of the temperature sensor (3), and the inner diameter of the limiting ring (41) matches the outer diameter of the other end of the temperature sensor (3).

4. The flat wire motor end connection device according to claim 1, characterized in that: The cross-sectional shape of the mounting frame (42) is an inverted U-shape, and the size of the movable plate (45) is smaller than the size of the inner cavity of the mounting frame (42).

5. The flat wire motor end connection device according to claim 1, characterized in that: A slide groove is provided on opposite sides of the left and right side walls of the inner cavity of the mounting frame (42), and a slider is fixed on the left and right sides of the movable plate (45), and the slider performs linear up and down motion in the inner cavity of the slide groove.

6. The flat wire motor end connection device according to claim 1, characterized in that: The heat dissipation mechanism (5) comprises a fixing ring (51), two support rods (52), a heat dissipation fan (53) and a dustproof mesh cover (54); the fixing ring (51) is fixed to the bottom of the outer surface of the flat wire motor body (1); the support rods (52) are fixed to the upper surface of the fixing ring (51); the dustproof mesh cover (54) is fixed to the top between the opposite sides of the two support rods (52); and the heat dissipation fan (53) is placed on the inner bottom wall of the dustproof mesh cover (54).

7. A flat wire motor end connection device according to claim 6, characterized in that: The size of the inner cavity of the dustproof mesh cover (54) is compatible with the size of the heat dissipation fan (53).

8. The flat wire motor end connection device according to claim 6, characterized in that: The air outlet of the cooling fan (53) is located directly to the left of the three-phase parallel copper busbar (2).

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