Anti-falling automobile air conditioner clutch coil

Abstract

The utility model discloses an anti-drop automobile air conditioner clutch coil, which relates to the related technical field of automobile air conditioner clutch coils, and comprises a mounting seat, a wire spool, a coil and an expansion solenoid, the coil is wound on the outer side surface of the wire spool, the upper end surface of the mounting seat is provided with a clamping groove and a clamping piece, the wire spool is arranged in the clamping groove, and the expansion solenoid is arranged in the clamping groove. The clamping pieces are evenly distributed on the mounting base with the center of the clamping groove as the axis and fixedly connected with the upper end face of the mounting base, the lower end of the expansion screw pipe penetrates through the clamping pieces and then is arranged below the mounting base, and the expansion screw pipe is in threaded connection with the mounting base. And the wire spool is clamped with the mounting seat through the matching of the clamping sheet and the expansion screw tube. The beneficial effects of the utility model are that: can make the installation and dismantlement more convenient while being firm.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive air-conditioning clutch coils, in particular to an anti-disengagement type automotive air-conditioning clutch coil. Background Art

[0002] An automotive air-conditioning clutch is a power transmission device between an automotive engine and an automotive air-conditioning compressor. The automotive air-conditioning compressor is driven by the automotive engine through an electromagnetic clutch. Generally, the automotive air-conditioning clutch consists of three parts: a pulley assembly, a coil assembly, and a drive plate assembly. The automotive air-conditioning clutch is a typical mechatronic product. The automotive air-conditioning clutch is controlled by an air-conditioning switch, a thermostat, an air-conditioning amplifier, a pressure switch, etc., and connects or disconnects the power transmission between the engine and the compressor when needed. In addition, when the compressor is overloaded, it can also play a certain protective role. Among them, the electromagnetic coil is fixed on the outer shell of the compressor, the drive plate is connected to the main shaft of the compressor, and the pulley is installed on the compressor head cover through a bearing and can rotate freely. When the air-conditioning switch is turned on, current passes through the electromagnetic coil of the electromagnetic clutch, and the electromagnetic coil generates an electromagnetic suction force, which makes the drive plate of the compressor combine with the pulley, transmits the torque of the engine to the main shaft of the compressor, and makes the main shaft of the compressor rotate. When the air-conditioning switch is turned off, the suction force of the electromagnetic coil disappears, and under the action of the spring piece, the drive plate and the pulley are disengaged, and the compressor stops working. The automotive air-conditioning clutch is a device that uses electromagnetic principles to realize the connection and disconnection actions during transmission. The installation of the clutch coil is basically fixed by glue, but this is prone to degumming and loosening over time, and it is not convenient for installation and disassembly.

[0003] A vibration-resistant and anti-degumming automotive air-conditioning clutch coil disclosed in Chinese Patent Publication No. CN214424951U, with an authorization publication date of October 19, 2021, includes a winding disc located inside a mounting seat. A coil is arranged on the surface of the winding disc. The side wall of the winding disc is fixedly connected to a connecting block, and a through hole for inserting a screw is provided in the middle of the connecting block. The inside of the mounting seat is rotationally connected to a drive shaft. A sunken groove is provided inside the mounting seat, a groove is provided on the inner wall of the sunken groove, and a limiting ring is slidably connected inside the sunken groove, and the mounting seat is threadedly connected to a spiral cover. The utility model facilitates the connection with the mounting seat by arranging a connecting block on the side of the winding disc, and a screw is provided to realize the stable positioning of the winding disc. At the same time, the groove is filled with glue and bonded to the winding disc, and the insertion of the connecting block can effectively improve the connection stability of the coil; the utility model is beneficial to limit the mounting seat by arranging a limiting ring and a spiral cover inside the mounting seat, has good vibration resistance and anti-degumming performance, and improves the service life of the automotive air-conditioning clutch. The disadvantage of this utility model is that the installation and disassembly are not convenient enough. Summary of the Utility Model

[0004] The utility model aims to overcome the deficiency in the prior art that it cannot be stable while making installation and disassembly more convenient, and provides an anti - detachment type automotive air - conditioner clutch coil that can be stable and also make installation and disassembly more convenient.

[0005] To achieve the above - mentioned purpose, the utility model adopts the following technical solutions:

[0006] An anti - detachment type automotive air - conditioner clutch coil, comprising a mounting base, a winding disc, a coil and an expansion screw tube. The coil is wound around the outer side surface of the winding disc. On the upper end surface of the mounting base, there are a card slot and cards. The winding disc is placed in the card slot. There are several cards, which are evenly distributed around the center of the card slot on the mounting base and fixedly connected to the upper end surface of the mounting base. The lower end of the expansion screw tube passes between several cards and is placed below the mounting base. The expansion screw tube is threadedly connected to the mounting base. The winding disc is clamped with the mounting base through the cooperation of the cards and the expansion screw tube.

[0007] During installation, first wind the coil on the winding disc, then put the winding disc into the card slot of the mounting base and fasten it with the cards first. Then pass the expansion screw tube through between the cards and screw it onto the mounting base. The expansion screw tube can expand the cards outwards, making the cards clamp the winding disc more tightly. Finally, pass the drive shaft through the expansion screw tube to connect, and the installation is completed. During disassembly, unscrew the expansion screw tube from the mounting base, then press the cards inwards, and then take out the winding disc, achieving the purpose of being stable while making installation and disassembly more convenient.

[0008] Preferably, the mounting base is provided with an inner ring and a screw hole. The inner ring is placed at the center of the card slot and fixedly connected to the inner bottom surface of the card slot. The screw hole is placed at the center of the inner ring. The lower end surface of the card is fixedly connected to the upper end surface of the inner ring. The lower end of the expansion screw tube passes between several cards and is threadedly connected to the mounting base through the screw hole. On the outer side surface of the winding disc, there is a winding groove. The coil is placed in the winding groove. The coil is clamped with the winding disc through the winding groove. The inner ring can limit the position of the winding disc, and the winding groove can centrally fix the coil.

[0009] Preferably, on the outer side surface of the card, there is a clamping block. The inner side surface of the clamping block is fixedly connected to the outer side surface of the card. The cross - section of the clamping block is trapezoidal with the upper part short and the lower part long. The clamping block is placed above the winding disc. The clamping block can further clamp the winding disc.

[0010] Preferably, on the outer side surface of the expansion screw tube, there is an expansion ring. The outer side surface of the expansion ring is larger at the top and smaller at the bottom. The outer side surface of the expansion ring is in contact with the inner side surface of the card. The winding disc is clamped with the mounting base through the cooperation of the clamping block and the expansion ring. The expansion ring can make the expansion screw tube expand the cards outwards when being screwed downwards to clamp the winding disc.

[0011] Preferably, the winding disc is provided with a through hole which is smaller at the top and larger at the bottom. The inner ring is placed inside the through hole, and the winding disc is clamped with the mounting seat through the cooperation of the through hole and the inner ring. The through hole being smaller at the top and larger at the bottom facilitates the passing of the clamping block and enables the clamping block to fix the winding disc in the clamping groove.

[0012] Preferably, the expansion screw tube is provided with a mounting hole and a hexagonal nut. The lower end surface of the hexagonal nut is fixedly connected to the upper end surface of the expansion screw tube, and the mounting hole is located at the center of the expansion screw tube. The mounting hole facilitates the passing of the driving shaft, and the hexagonal nut facilitates the installation and disassembly of the expansion screw tube.

[0013] The beneficial effects of the present utility model are as follows: it can achieve the purpose of being stable while making installation and disassembly more convenient; the inner ring can limit the position of the winding disc, and the winding groove can centrally fix the coil; the clamping block can further clamp the winding disc; the expansion ring can expand the card outwards when the expansion screw tube is screwed downwards to clamp the winding disc; the through hole being smaller at the top and larger at the bottom facilitates the passing of the clamping block and enables the clamping block to fix the winding disc in the clamping groove; the mounting hole facilitates the passing of the driving shaft, and the hexagonal nut facilitates the installation and disassembly of the expansion screw tube. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is the sectional view of the front view of the present utility model;

[0016] Figure 3 is Figure 2 the enlarged view of detail A of

[0017] In the figure: 1. Mounting seat, 2. Winding disc, 3. Coil, 4. Expansion screw tube, 5. Card, 6. Clamping groove, 7. Inner ring, 8. Screw hole, 9. Winding groove, 10. Clamping block, 11. Expansion ring, 12. Through hole, 13. Mounting hole, 14. Hexagonal nut. Detailed Embodiment

[0018] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0019] As shown in Figure 1 and Figure 2In an embodiment, an anti - shedding automotive air - conditioner clutch coil includes a mounting base 1, a winding disc 2, a coil 3, and an expansion solenoid 4. The coil 3 is wound around the outer side surface of the winding disc 2. On the upper end surface of the mounting base 1, there are a card slot 6 and a card 5. The winding disc 2 is placed in the card slot 6. There are several cards 5, and they are all evenly distributed around the center of the card slot 6 on the mounting base 1 and fixedly connected to the upper end surface of the mounting base 1. The lower end of the expansion solenoid 4 passes through between several cards 5 and is placed below the mounting base 1. The expansion solenoid 4 is threadedly connected to the mounting base 1. The winding disc 2 is clamped to the mounting base 1 through the cooperation of the card 5 and the expansion solenoid 4.

[0020] As Figure 2 and Figure 3 shown, on the mounting base 1, there is an inner ring 7 and a screw hole 8. The inner ring 7 is placed at the center of the card slot 6 and fixedly connected to the inner bottom surface of the card slot 6. The screw hole 8 is placed at the center of the inner ring 7. The lower end surface of the card 5 is fixedly connected to the upper end surface of the inner ring 7. The lower end of the expansion solenoid 4 passes through between several cards 5 and is threadedly connected to the mounting base 1 through the screw hole 8. On the outer side surface of the winding disc 2, there is a winding groove 9. The coil 3 is placed in the winding groove 9. The coil 3 is clamped to the winding disc 2 through the winding groove 9.

[0021] As Figure 2 and Figure 3 shown, on the outer side surface of the card 5, there is a clamping block 10. The inner side surface of the clamping block 10 is fixedly connected to the outer side surface of the card 5. The cross - section of the clamping block 10 is trapezoidal with the upper part shorter and the lower part longer. The clamping block 10 is placed above the winding disc 2.

[0022] As Figure 2 and Figure 3 shown, on the outer side surface of the expansion solenoid 4, there is an expansion ring 11. The outer side surface of the expansion ring 11 is larger at the top and smaller at the bottom. The outer side surface of the expansion ring 11 is in contact with the inner side surface of the card 5. The winding disc 2 is clamped to the mounting base 1 through the cooperation of the card 5 and the expansion ring 11.

[0023] As Figure 2 and Figure 3 shown, on the winding disc 2, there is a through - hole 12. The through - hole 12 is smaller at the top and larger at the bottom. The inner ring 7 is placed in the through - hole 12. The winding disc 2 is clamped to the mounting base 1 through the cooperation of the through - hole 12 and the inner ring 7.

[0024] As Figures 1 to 3 shown, on the expansion solenoid 4, there are a mounting hole 13 and a hexagon nut 14. The lower end surface of the hexagon nut 14 is fixedly connected to the upper end surface of the expansion solenoid 4. The mounting hole 13 is placed at the center of the expansion solenoid 4.

[0025] During installation, first wind the coil 3 in the winding groove 9 of the winding reel 2, then put the winding reel 2 into the card slot 6 of the mounting seat 1, and at the same time, pass the card 5 through the through hole 12 and place the inner ring 7 in the through hole 12, first buckle the winding reel 2 with the card block 10 on the card 5, then pass the expansion screw tube 4 between the cards 5 and use a wrench with the hexagonal nut 14 to screw the lower end of the expansion screw tube 4 into the screw hole 8 on the mounting seat 1, and the expansion ring 11 on the expansion screw tube 4 can expand the card 5 outward to press against the winding reel 2 The inner wall of the through hole 12 allows the card 5 to clamp the winding drum 2 more tightly, and finally the drive shaft is passed through the mounting hole 13 for installation and connection, and the installation is completed. In this way, even if the expansion screw tube 4 is loose, the clamping block 10 will clamp the winding drum 2 and it will not loosen easily; when disassembling, unscrew the expansion screw tube 4 from the mounting seat 1, then press the card 5 inwards, and then take out the winding drum. Only one tool, a wrench, is needed for installation and disassembly, and there are not many steps, which achieves the purpose of being stable while making installation and disassembly more convenient.

Claims

1. An anti-slip type automobile air-conditioning clutch coil, characterized in that: The invention comprises a mounting seat (1), a winding drum (2), a coil (3) and an expansion screw tube (4), wherein the coil (3) is wound around the outer surface of the winding drum (2), a card slot (6) and a card (5) are provided on the upper end surface of the mounting seat (1), the winding drum (2) is placed in the card slot (6), a plurality of cards (5) are evenly distributed on the mounting seat (1) with the center of the card slot (6) as the axis and are fixedly connected to the upper end surface of the mounting seat (1), the lower end of the expansion screw tube (4) passes through a plurality of cards (5) and is then placed below the mounting seat (1), the expansion screw tube (4) is threadedly connected to the mounting seat (1), and the winding drum (2) is card-connected to the mounting seat (1) through the cooperation of the card (5) and the expansion screw tube (4).

2. The anti-slip type automobile air-conditioning clutch coil according to claim 1 is characterized in that: The mounting seat (1) is provided with an inner ring (7) and a screw hole (8), the inner ring (7) is placed at the center of the card slot (6) and fixedly connected to the inner bottom surface of the card slot (6), the screw hole (8) is placed at the center of the inner ring (7), the lower end surface of the card (5) is fixedly connected to the upper end surface of the inner ring (7), the lower end of the expansion screw tube (4) passes through a plurality of cards (5) and is threadedly connected to the mounting seat (1) through the screw hole (8), the outer surface of the winding drum (2) is provided with a winding groove (9), the coil (3) is placed in the winding groove (9), and the coil (3) is clamped to the winding drum (2) through the winding groove (9).

3. The anti-slip type automobile air-conditioning clutch coil according to claim 2 is characterized in that: A card block (10) is provided on the outer side of the card (5); the inner side of the card block (10) is fixedly connected to the outer side of the card (5); the cross-sectional inclined surface of the card block (10) is trapezoidal in shape and is shorter at the top and longer at the bottom; the card block (10) is placed above the winding reel (2).

4. The anti-slip type automobile air-conditioning clutch coil according to claim 3 is characterized in that: An expansion ring (11) is provided on the outer side of the expansion spiral tube (4), the outer side of the expansion ring (11) being larger at the top and smaller at the bottom, the outer side of the expansion ring (11) being in contact with the inner side of the card (5), and the winding reel (2) being clamped to the mounting seat (1) through the cooperation of the card (5) and the expansion ring (11).

5. The anti-slip type automobile air-conditioning clutch coil according to claim 2 is characterized in that: The winding drum (2) is provided with a through hole (12), the through hole (12) being smaller at the top and larger at the bottom, the inner ring (7) being disposed in the through hole (12), and the winding drum (2) is snap-connected to the mounting seat (1) through the cooperation of the through hole (12) and the inner ring (7).

6. The anti-slip type automobile air-conditioning clutch coil according to claim 4 is characterized in that: The expansion spiral tube (4) is provided with a mounting hole (13) and a hexagonal nut (14); the lower end surface of the hexagonal nut (14) is fixedly connected to the upper end surface of the expansion spiral tube (4); and the mounting hole (13) is located at the center of the expansion spiral tube (4).

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