Three-phase wiring seat assembly

Abstract

The utility model discloses a three-phase wiring seat assembly, and relates to the technical field of motors, and the three-phase wiring seat assembly is characterized by comprising a housing and three copper bars inserted in the housing; a wiring stud and a wiring nut are arranged at the two ends of each copper bar respectively, a bayonet socket used for being inserted into a motor is arranged at the lower end of the shell, and three nanocrystalline magnetic rings connected to the corresponding copper bars in a sleeving mode are embedded in the bayonet socket. And the bayonet socket is provided with three matching penetrating holes which are respectively matched with the corresponding nanocrystalline magnetic rings. According to the utility model, the matching stability of the copper bar inserted into the motor is improved through the bayonet socket, and external interference signals are effectively shielded through the nanocrystalline magnetic ring, so that the current stability is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically to a three-phase terminal block assembly. Background Art

[0002] The three-phase terminal block assembly is one of the important components for connecting the drive motor of new energy electric vehicles with the electronic control system. As the popularity of new energy electric vehicles increases year by year, in order to pursue the operating stability of the drive motor of new energy electric vehicles and avoid the lack of current stability caused by interference, it is a difficult problem that needs to be solved urgently in the three-phase terminal block assembly.

[0003] At the same time, how to improve the current stability while solving the problems of weak insulation resistance and insufficient high and low voltage endurance of existing three-phase terminal blocks. Summary of the invention

[0004] In view of this, the purpose of this application is to provide a three-phase terminal block assembly to achieve the purpose of stable shielding interference current, strong insulation resistance and high and low voltage resistance. The specific scheme is as follows:

[0005] A three-phase terminal block assembly comprises a shell and three copper bars plugged into the shell; terminal studs and terminal nuts are respectively arranged at both ends of the copper bars, a socket for inserting into a motor is arranged at the lower end of the shell, three nanocrystalline magnetic rings are embedded in the socket and are respectively sleeved on the corresponding copper bars, and the socket is provided with three matching penetration holes respectively matching the corresponding nanocrystalline magnetic rings.

[0006] Preferably: a sealing ring groove is arranged on the outer side of the shell, a sealing ring is arranged in the sealing ring groove, and the cross section of the sealing ring is in an 8-shape.

[0007] Preferably: a plurality of positioning grooves are arranged on the lower side of the sealing ring groove, and the sealing ring is provided with a plurality of positioning plugs respectively matching with the corresponding positioning grooves.

[0008] Preferably, three stepped grooves with gradually increasing heights are arranged at the bottom of the socket, and the three wiring nuts are located in corresponding stepped grooves.

[0009] Preferably, the matching penetration hole is connected with a matching groove, and the matching groove matches the nanocrystalline magnetic ring and is used to limit the movement of the nanocrystalline magnetic ring relative to the shell.

[0010] Preferably: a cover plate is provided at the top end of the shell, and end caps are provided at both ends of the cover plate, and the end caps are integrally injection-molded with fixed reinforcement columns, and the fixed reinforcement columns are hollow and have outer diameters at both ends larger than the outer diameter of the middle portion.

[0011] It can be seen from the above scheme that the present application provides a three-phase terminal block assembly, which has the following beneficial effects:

[0012] 1. The matching stability of the copper bar inserted into the motor is improved through the socket, and the external interference signal is effectively shielded through the nanocrystalline magnetic ring, thereby significantly improving the current stability effect;

[0013] 2. The matching stability between the nanocrystalline magnetic ring and the socket is improved by matching the penetration holes. When the nanocrystalline magnetic ring is sleeved on the copper busbar, the three-phase terminal block assembly has the effects of stable shielding interference current, strong insulation resistance and high and low voltage resistance;

[0014] 3. The 8-shaped sealing ring is fixed in the sealing ring groove to match the motor, so that when the socket is plugged into the motor, the sealing effect is significantly improved to prevent high-temperature oil from leaking to the other side and affecting the normal operation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of this embodiment;

[0016] Figure 2 It is a schematic diagram of the explosion structure of this embodiment.

[0017] Explanation of the reference numerals: 1. Shell; 11. Sealing ring groove; 12. Positioning groove; 2. Plug socket; 21. Step groove; 22. Matching penetration hole; 221. Matching groove; 3. Cover plate; 31. Terminal; 32. Fixed reinforcement column; 4. Copper busbar; 41. Wiring stud; 42. Wiring nut; 5. Nanocrystalline magnetic ring; 6. Sealing ring; 61. Positioning plug. DETAILED DESCRIPTION

[0018] In order to make the technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] like Figure 1 As shown, a three-phase terminal block assembly includes a housing 1 and three copper bars 4 plugged into the housing 1. The copper bars 4 are formed by stamping and then injection molded into one piece with the housing 1 to improve the fixing stability of the copper bars 4. Terminal studs 41 and terminal nuts 42 are respectively provided at both ends of the copper bars 4 to achieve the purpose of stabilizing the connection line. A socket 2 for inserting into the motor is provided at the lower end of the housing 1, and three nanocrystalline magnetic rings 5 ​​respectively sleeved on the corresponding copper bars 4 are embedded in the socket 2, and the nanocrystalline magnetic rings 5 ​​play an effective role in shielding external interference signals.

[0020] like Figure 1 , Figure 2 As shown, the socket 2 is provided with three matching penetration holes 22 respectively matching with the corresponding nanocrystalline magnetic rings 5, so that the nanocrystalline magnetic rings 5 ​​and the housing 1 form a stable connection structure and achieve an effective external interference signal shielding effect on the copper bus 4.

[0021] It should be noted that a sealing ring groove 11 is provided on the outer side of the housing 1. A sealing ring 6 is provided in the sealing ring groove 11, and the cross section of the sealing ring 6 is in the shape of an 8. The sealing ring 6 is used to prevent high-temperature oil from leaking to the electric control side of the three-phase terminal block assembly, and a sealant can be used to seal the gap between the three-phase terminal block assembly and the motor to further improve the sealing effect.

[0022] At the same time, a plurality of positioning grooves 12 are provided on the lower side of the sealing ring groove 11. The sealing ring 6 is provided with a plurality of positioning plugs 61 respectively matching the corresponding positioning grooves 12. Therefore, the sealing ring 6 is plugged and matched in the positioning groove 12 through the positioning plugs 61, so that the sealing ring 6 has an effective sealing effect.

[0023] like Figure 1 , Figure 2 As shown, three stepped grooves 21 with gradually increasing heights are provided at the bottom of the socket 2, and three wire nuts 42 are located in the corresponding stepped grooves 21. At the same time, a matching groove 221 is provided on one side of the matching penetration hole 22. The matching groove 221 matches the nanocrystalline magnetic ring 5 and is used to limit the movement of the nanocrystalline magnetic ring 5 relative to the shell 1, thereby effectively improving the interference signal shielding effect of the nanocrystalline magnetic ring 5. A cover plate 3 is provided at the top of the shell 1, and end caps 31 are provided at both ends of the cover plate 3. The end cap 31 is integrally injection molded with a fixed reinforcement column 32. The fixed reinforcement column 32 is hollow and the outer diameters at both ends are larger than the outer diameter of the middle part. Therefore, a stable connection structure is formed between the fixed reinforcement column 32 and the cover plate 3, and it effectively avoids the wear of the cover plate 3 during installation and fixation, thereby affecting the stability of the three-phase terminal block assembly and the motor fixation.

[0024] In summary, the present application provides a three-phase terminal block assembly, which improves the matching stability of the copper busbar 4 inserted into the motor through the socket 2, and effectively shields external interference signals through the nanocrystalline magnetic ring 5, thereby significantly improving the effect of current stability. At the same time, the matching stability of the nanocrystalline magnetic ring 5 and the socket 2 is improved by matching the penetration hole 22, and then when the nanocrystalline magnetic ring 5 is sleeved on the copper busbar 4, the three-phase terminal block assembly has the effects of stable shielding of interference current, strong insulation resistance and high and low voltage resistance. Among them, the sealing ring 6 in the shape of an 8 is fixed in the sealing ring groove 11 to match the motor, so that when the socket 2 is plugged into the motor, the sealing effect is significantly improved to prevent high-temperature oil from leaking to the other side and affecting the normal operation of the motor.

[0025] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods or devices.

[0026] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A three-phase terminal block assembly, characterized in that: The invention comprises a shell (1) and three copper bars (4) plugged into the shell (1); the two ends of the copper bars (4) are respectively provided with terminal studs (41) and terminal nuts (42); the lower end of the shell (1) is provided with a socket (2) for inserting into a motor; the socket (2) is embedded with three nanocrystalline magnetic rings (5) respectively sleeved on the corresponding copper bars (4); and the socket (2) is provided with three matching penetration holes (22) respectively matching the corresponding nanocrystalline magnetic rings (5).

2. A three-phase terminal block assembly according to claim 1, characterized in that: A sealing ring groove (11) is arranged on the outer side of the housing (1), a sealing ring (6) is arranged in the sealing ring groove (11), and the cross section of the sealing ring (6) is in an 8-shape.

3. A three-phase terminal block assembly according to claim 2, characterized in that: A plurality of positioning grooves (12) are provided on the lower side of the sealing ring groove (11), and the sealing ring (6) is provided with a plurality of positioning plugs (61) respectively matching the corresponding positioning grooves (12).

4. A three-phase terminal block assembly according to claim 1, characterized in that: The bottom of the socket (2) is provided with three stepped grooves (21) with gradually increasing heights, and the three wiring nuts (42) are located in the corresponding stepped grooves (21).

5. The three-phase terminal block assembly according to claim 1, characterized in that: The matching penetration hole (22) is connected to a matching groove (221), and the matching groove (221) matches the nanocrystalline magnetic ring (5) and is used to limit the movement of the nanocrystalline magnetic ring (5) relative to the housing (1).

6. A three-phase terminal block assembly according to claim 1, characterized in that: A cover plate (3) is provided at the top end of the shell (1), and end caps (31) are provided at both ends of the cover plate (3). The end caps (31) are integrally injection-molded with fixed reinforcement columns (32), and the fixed reinforcement columns (32) are hollow and have outer diameters at both ends that are larger than the outer diameter of the middle portion.

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