Motor assembly of integrated casting three-phase line fixing device

Abstract

The utility model provides a motor assembly of an integrated casting three-phase line fixing device, and solves the problems that a motor three-phase line in a part of current hybrid transmissions is fixed by an external support, the external support and a motor of the hybrid transmissions vibrate at different frequencies, bolts are loosened after long-term use, the motor three-phase line is not firmly fixed and shakes, and the service life of the motor assembly is prolonged. The device specifically comprises a motor and a three-phase line fixing device, the three-phase line fixing device is arranged on the outer side face of the upper portion of the motor and comprises a junction box connected with the motor, a base connected with the lower end of the side, away from the motor, of the junction box, and a line base arranged on the upper surface of the side, away from the junction box, of the base. And the wire cover is matched with the wire seat for use. The three-phase line fixing device and the motor shell are integrally cast, so that the production cost is reduced, the assembly efficiency is improved, the stability in the working process is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of motor, specifically to a kind of motor assembly of integrated casting three-phase line fixing device, for being set on the outer side of the upper portion of hybrid transmission. BACKGROUND

[0002] The motor in the commercial vehicle hybrid transmission needs to have a fixing device to fix the three-phase line of the motor, to ensure that the motor power supply is stable and reliable during vehicle driving. Currently, some three-phase lines of the motor are fixed on the motor of the hybrid transmission through an external support, and some three-phase lines of the motor are directly fixed on the vehicle frame through a support or a strap. The above fixing methods have poor stability, short service life of the fixing device, and the fixing method of the external support makes the assembly process complicated and increases the work intensity during the assembly process of the hybrid transmission.

[0003] Chinese patent CN220896428U discloses a three-phase line fixing device, which includes a fixing support and a wire clamp. The fixing support includes a first support bracket arranged on the motor and a second support bracket connected to the first support bracket. The wire clamp is arranged on the second support bracket, and the wire clamp is provided with fixing holes for restraining the three-phase line. This patent fixes the three-phase line of the motor by additionally installing a fixing support on the motor with bolts and arranging a wire clamp for fixing the three-phase line on the fixing support. The installation process is relatively complex, and there is a problem that the bolts may loosen and cause the fixing support to loosen during the operation of the motor, which is not conducive to the stability of the motor power supply and may cause safety hazards. SUMMARY

[0004] The utility model aims to solve the technical problem that the three-phase line of the motor in the current part of the hybrid transmission is fixed with an external support, the external support and the motor of the hybrid transmission vibrate at different frequencies, the bolts loosen after long-term use, the three-phase line of the motor is not fixed firmly and shakes, which is not conducive to the stability of the motor power supply. The utility model provides a kind of motor assembly of integrated casting three-phase line fixing device.

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

[0006] A kind of motor assembly of integrated casting three-phase line fixing device, for being set on the outer side of the upper portion of hybrid transmission;Its special feature is that it includes a motor and a three-phase line fixing device;The three-phase line fixing device is arranged on the outer side of the upper portion of the motor, including a junction box connected to the motor, a base connected to the lower end of the side of the junction box away from the motor, a wire holder arranged on the upper surface of the side of the base away from the junction box, and a wire cover used in cooperation with the wire holder;

[0007] The junction box, the base, the wire holder and the shell of the motor are of an integrated casting structure;

[0008] The wire cover is installed on the wire seat and used for fixing the three-phase wires of the motor on the terminal box respectively.

[0009] Further, the terminal box is provided with three Luer connectors, and the three-phase wires of the motor pass through the Luer connectors and are led out from the terminal box; the wire seat is provided with three U-shaped grooves for restraining the three-phase wires of the motor, and the three U-shaped grooves are coaxially arranged with the corresponding Luer connectors.

[0010] Further, the depth of the U-shaped groove is slightly smaller than the diameter of the three-phase wire of the motor, and the width of the U-shaped groove is adapted to the diameter of the three-phase wire of the motor, so that the three-phase wires of the motor are pressed in the three U-shaped grooves by the wire cover.

[0011] Further, the wire seat is provided with bolt holes between the two U-shaped grooves.

[0012] Further, the wire cover is a rectangular plate structure, and the size of the wire cover is adapted to the wire seat; the wire cover is provided with through holes corresponding to the bolt holes of the wire seat, and the wire cover is fixed on the wire seat by the bolts passing through the through holes and the bolt holes.

[0013] Further, the terminal box is provided with a reinforcing rib between the lower side of the terminal box and the motor.

[0014] The motor assembly of the integrated cast three-phase wire fixing device has the advantages that:

[0015] 1. The motor assembly of the integrated cast three-phase wire fixing device integrally casts the three-phase wire fixing device and the motor shell, simplifies the assembly process, does not need to install external brackets and other components, improves the assembly efficiency, and reduces the production cost.

[0016] 2. The motor assembly of the integrated cast three-phase wire fixing device integrally casts the three-phase wire fixing device and the motor shell, has better stability than the traditional fixing device structure, can make the three-phase wires of the motor and the motor have the same vibration frequency, is beneficial to the stable transmission of current, and reduces the safety hidden danger.

[0017] 3. The motor assembly of the integrated cast three-phase wire fixing device integrally casts the three-phase wire fixing device and the motor shell, reduces the number of bolts used compared with the traditional fixing device structure, reduces the probability of rust and aging of the bolts after long-time use, and reduces the risk caused by the instability of the external bracket. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view of the three-phase wire fixing device in the motor assembly of the integrated cast three-phase wire fixing device embodiment of the utility model;

[0019] Figure 2is the top view of the three-phase wire fixing device in the embodiment of the utility model;

[0020] Figure 3 is the right view of the three-phase wire fixing device in the embodiment of the utility model;

[0021] Figure 4 is the front view of the three-phase wire fixing device installed on the hybrid transmission in the embodiment of the utility model;

[0022] Figure 5 is the top view of the three-phase wire fixing device installed on the hybrid transmission in the embodiment of the utility model;

[0023] Figure 6 is the right view of the three-phase wire fixing device installed on the hybrid transmission in the embodiment of the utility model.

[0024] Reference signs:

[0025] 1-motor, 2-wiring box, 21-globe, 22-stiffener, 3-base, 4-wire seat, 41-U-shaped groove, 42-bolt, 5-wire cover. Specific implementation

[0026] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and embodiments, obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] The utility model embodiment provides a kind of motor assembly of integrated casting three-phase wire fixing device, as shown in Figures 4-6 It includes two motors 1, two motors 1 structure is same, symmetrically set on the outer side of the upper part of hybrid transmission, and constitutes double motor structure;Three-phase wire fixing device is set on the outer side of the upper part of motor 1, as shown in Figures 1-3 It includes wiring box 2 connected with motor 1, base 3 connected with the lower end of the side away from motor 1 of wiring box 2, wire seat 4 set on the upper surface of the side away from wiring box 2 of base 3, and wire cover 5 used in cooperation with wire seat 4;Wiring box 2, base 3, wire seat 4 and the shell of motor 1 are integrated casting structure.

[0028] Wiring box 2 is equipped with three globe 21, and motor three-phase wire is led out through globe 21 in the inside of wiring box 2;Three U-shaped grooves 41 for constraining motor three-phase wire are provided on wire seat 4, and three U-shaped grooves 41 are coaxially arranged with corresponding globe 21 respectively, to avoid the bending stress of motor three-phase wire.

[0029] Three U-shaped grooves 41 of wire seat 4 are equipped with bolt holes between each other.

[0030] The wire cover 5 is a rectangular plate structure, and the size of the wire cover 5 is matched with the wire seat 4; the wire cover 5 is provided with a through hole corresponding to the bolt hole on the wire seat 4, and the through hole and the bolt hole are used for penetrating the bolt 42 to fix the wire cover 5 on the wire seat 4; the bolt 42 is arranged between the two motor three-phase wires, so that the motor three-phase wires can bear greater and more concentrated force, and the wire cover 5 can fix the motor three-phase wires more stably.

[0031] The depth of the U-shaped groove 41 is slightly smaller than the diameter of the motor three-phase wire, the width is matched with the diameter of the motor three-phase wire, when the motor three-phase wire is clamped into the U-shaped groove 41, the motor three-phase wire slightly protrudes from the U-shaped groove 41, so that the wire cover 5 can fix the motor three-phase wire more tightly, and the motor three-phase wire does not shake; the lowest part of the U-shaped groove 41 is on the same horizontal plane with the lowest part of the gland head 21, so that the motor three-phase wire does not bend and wear the gland head 21 after being drawn out from the gland head 21.

[0032] The reinforcing rib 22 is arranged between the lower side of the junction box 2 and the motor 1, so that the structural strength of the motor three-phase wire fixing device part can be strengthened, the structural stability of the motor three-phase wire fixing device can be improved, the failure rate can be reduced, and the service life can be prolonged.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical range disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A motor assembly with an integrated cast three-phase wire fixing device, used to be mounted on the outer side of the upper part of a hybrid transmission; Its features are: It includes a motor (1) and a three-phase wire fixing device; the three-phase wire fixing device is set on the outer side of the upper part of the motor (1), including a junction box (2) connected to the motor (1), a base (3) connected to the lower end of the junction box (2) away from the motor (1), a wire seat (4) set on the upper surface of the base (3) away from the junction box (2), and a wire cover (5) used in conjunction with the wire seat (4); The junction box (2), base (3), wire seat (4) and the housing of the motor (1) are an integral cast structure; The wire cover (5) is installed on the wire seat (4) and is used to fix the three phase wires of the motor onto the junction box (2) respectively.

2. The motor assembly of the integrated cast three-phase wire fixing device according to claim 1, characterized in that: The junction box (2) is provided with three glands (21), and the three-phase motor wires pass through the inside of the junction box (2) and are led out through the glands (21); the wire seat (4) is provided with three U-shaped grooves (41) for constraining the three-phase motor wires, and the three U-shaped grooves (41) are respectively coaxially arranged with the corresponding glands (21).

3. The motor assembly of the integrated cast three-phase wire fixing device according to claim 2, characterized in that: The depth of the U-shaped groove (41) is slightly smaller than the diameter of the motor's three-phase wires, and the width is adapted to the diameter of the motor's three-phase wires, so that the motor's three-phase wires can be pressed into the three U-shaped grooves respectively by the wire cover (5).

4. The motor assembly of the integrated cast three-phase wire fixing device according to claim 3, characterized in that: Bolt holes are provided between each pair of the three U-shaped grooves (41) of the wire seat (4).

5. The motor assembly of an integrated cast three-phase wire fixing device according to any one of claims 1-4, characterized in that: The wire cover (5) is a rectangular plate structure, and the size of the wire cover (5) is adapted to the wire seat (4). The wire cover (5) is provided with a through hole corresponding to the bolt hole on the wire seat (4). The bolt (42) passes through the through hole and the bolt hole to fix the wire cover (5) on the wire seat (4).

6. The motor assembly of the integrated cast three-phase wire fixing device according to claim 5, characterized in that: A reinforcing rib (22) is provided between the lower side of the junction box (2) and the motor (1).

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