Connector with welding terminal and electric automobile comprising connector

Abstract

The utility model discloses a connector with a welding terminal and an electric automobile comprising the connector. The connector comprises a mounting piece, a first wire harness, a second wire harness and a metal welding piece, the mounting piece comprises a base and a connecting lug which are integrally formed; a plurality of through holes penetrating through the base are formed in the base; glue filling grooves are formed in the top and the bottom of the base; the first wire harness and the second wire harness extend into the through hole, the first wire harness and the second wire harness are welded to the two ends of the metal weldment respectively, the metal weldment is located in the through hole, pouring sealant is poured into the sealant pouring groove, and sealing and fixing of the welding joint of the first wire harness and the second wire harness and the metal weldment are achieved; an integrally-formed metal insert is arranged on the side portion of the connecting lug, and the metal insert is provided with a through first connecting hole. When the base of the mounting part is inserted into the motor cylinder body, the first connecting hole is aligned with the second connecting hole of the motor cylinder body, and the metal insert is pressed by the fastener, so that the mounting part is fixed. The utility model has the characteristics of compact structure, simple principle, good sealing performance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the connector technical field of motor controller, concretely relates to a connector with welding terminal and electric automobile containing it. BACKGROUND

[0002] With the continuous development of new energy automobile technology, integrated design has become a development trend. The electric drive system integrated with motor, controller, reducer, OBC, DCDC and the like has the advantages of low cost, small size, high power density and the like, and can comprehensively improve the efficiency and safety of new energy automobiles. As one of the core components of the electric drive of new energy automobiles, the motor faces severe challenges in temperature rise control. Excessive temperature rise directly affects the output performance and service life of the motor, so the oil cooling system is widely applied to the motor. In the motor controller of the new energy automobile, the internal components usually need to be connected with the outside through the connector, but the traditional connector is usually a male terminal and a female terminal that are inserted into each other, which has the defects of large size and high cost. SUMMARY

[0003] The utility model wants to solve the technical problem to overcome prior art's insufficient, provide a kind of connector with welding terminal with compact structure, convenient to disassemble and assemble and good sealing performance and electric automobile containing it.

[0004] To solve the above technical problems, the utility model adopts the technical scheme that:

[0005] A kind of connector with welding terminal, comprising: mounting piece, first wire harness, second wire harness and metal welding piece;The mounting piece includes integrally-formed base and connecting lug;The base is provided with a plurality of through holes penetrating it, so that wire harness passes through;Glue channel is provided between the top of base and connecting lug and the bottom of base;The first wire harness and the second wire harness extend into the through hole, and the first wire harness and the second wire harness are respectively welded at the two ends of the metal welding piece, the metal welding piece is located in the through hole, the glue channel is filled with potting glue, to realize the welding connection of the first wire harness and the second wire harness and the sealing fixation of the metal welding piece;The side of connecting lug is provided with integrally-formed metal insert, the metal insert is provided with first connecting hole penetrating;When the base of mounting piece is inserted into motor cylinder body, first connecting hole is aligned with second connecting hole of motor cylinder body, metal insert is pressed by fastener, to realize the fixation of mounting piece.

[0006] As a further improvement of the utility model, the metal welding piece is a copper sheet, and the two ends of the copper sheet are respectively ultrasonically welded and fixed with the first wire harness and the second wire harness.

[0007] As a further improvement of the utility model, the metal welding piece is a rectangular copper sheet.

[0008] As a further improvement of the utility model, the metal welding piece is an oval copper sheet.

[0009] As a further improvement of the utility model, the metal welding piece is an L-shaped copper sheet.

[0010] As a further improvement of the utility model, a sealing groove is arranged on the periphery of the base, and a sealing ring is arranged in the sealing groove to realize that the base is sealingly nested in the motor cylinder.

[0011] As a further improvement of the utility model, the mounting piece is made of plastic, and the mounting piece and the metal insert are integrally injection molded.

[0012] As a further improvement of the utility model, one of the first wire harness and the second wire harness is a motor end wire harness, and the other is a controller end wire harness.

[0013] As a further improvement of the utility model, the first connecting hole and the second connecting hole are threaded holes, and the fastener is a screw.

[0014] As a further improvement of the utility model, the base is a cylindrical structure.

[0015] As a general technical concept, the utility model also provides an electric vehicle comprising the connector with the welding terminal.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The connector with the welding terminal and the electric vehicle comprising the same of the utility model, through the base and the connecting lug which are integrally formed to form a mounting piece, and a plurality of through holes which are arranged in the base to be penetrated by the wire harness, so that the wire harness can pass through, and glue injection grooves are arranged between the top of the base and the connecting lug and the bottom of the base, the first wire harness and the second wire harness are respectively welded on the two end faces of the metal welding piece, the wire harness connection is realized by using the metal welding piece, the metal welding piece is arranged in the glue injection groove, and the welding connection of the wire harness and the sealing and fixation of the metal welding piece are realized by injecting sealing glue in the glue injection groove, so that the structure is simple and reliable in sealing, the sealing requirement between the wire harness and the mounting piece is met, the motor oil gas can be effectively prevented from entering the inside of the controller, the IP67 protection level of the motor and the controller is met, at the same time, the metal insert which is integrally formed is arranged on the side of the connecting lug, the first connecting hole is arranged on the metal insert, when the base of the mounting piece is inserted into the motor cylinder, the first connecting hole is aligned with the second connecting hole of the motor cylinder, the metal insert is pressed by the fastener, the mounting piece is fixed, the wire harness failure caused by the axial displacement of vibration is prevented, the assembly difficulty is reduced, and the vibration reliability is improved.

[0018] 2. The electric vehicle of the utility model, contain the sealing structure of rotary transformer connector of above-mentioned, thus also have above-mentioned advantages. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the explosion structure principle schematic view of the connector with the welding terminal in the embodiment of the utility model;

[0020] Figure 2 It is the three-dimensional structure principle schematic view of the connector with the welding terminal in the embodiment of the utility model;

[0021] Figure 3 It is the sectional structure principle schematic view of the connector with the welding terminal in the embodiment of the utility model;

[0022] Figure 4 It is the connection structure principle schematic view between the external wire harness and the controller end wire harness in the embodiment of the utility model; wherein, figure (a) is that the external wire harness and the controller end wire harness are connected through rectangular copper sheet, figure (b) is that the external wire harness and the controller end wire harness are connected through oval copper sheet, figure (c) is that the external wire harness and the controller end wire harness are connected through L-shaped copper sheet,

[0023] Figure 5 It is the sectional structure principle schematic view of the connector assembly to the cylinder in the embodiment of the utility model;

[0024] Legend: 1, mounting piece; 101, base; 102, connecting lug; 11, through hole; 12, sealing groove; 13, glue filling groove; 2, metal insert; 21, first connecting hole; 3, sealing ring; 4, first wire harness; 5, second wire harness; 6, sealing glue; 7, metal welding piece; 8, motor cylinder; 81, second connecting hole; 9, screw. DETAILED DESCRIPTION

[0025] The utility model will be further described below in conjunction with the drawings and specific preferred embodiments, but it is not therefore to limit the protection scope of the utility model.

[0026] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features with "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly and specifically limited.

[0028] Embodiments

[0029] As shown in Figure 1 , Figure 2 and Figure 3 The connector with a welding terminal of the utility model comprises a mounting piece 1, a first wire harness 4, a second wire harness 5 and a metal welding piece 7. The mounting piece 1 comprises an integrally formed base 101 and a connecting lug 102. The base 101 is provided with a plurality of through holes 11 penetrating the base 101 to allow the wire harness to pass through. The top of the base 101 and the connecting lug 102 and the bottom of the base 101 are each provided with a glue pouring groove 13. The first wire harness 4 and the second wire harness 5 extend into the through hole 11, and the first wire harness 4 and the second wire harness 5 are respectively welded at both ends of the metal welding piece 7, the metal welding piece 7 is located in the through hole 11, the glue pouring groove 13 is filled with potting glue 6, and the potting glue 6 can flow into the through hole 11 to achieve the sealing and fixing of the welding connection of the first wire harness 4 and the second wire harness 5 and the metal welding piece 7. The side of the connecting lug 102 is provided with an integrally formed metal insert 2, and the metal insert 2 is provided with a first connecting hole 21 penetrating the metal insert 2. As shown in Figure 5 When the base 101 of the mounting piece 1 is inserted into the motor cylinder body 8, the first connecting hole 21 is aligned with the second connecting hole 81 of the motor cylinder body 8, and the metal insert 2 is pressed by the fastener to achieve the fixing of the mounting piece 1. Further, the first connecting hole 21 and the second connecting hole 81 are both threaded holes, and the fastener is a screw 9.

[0030] In this embodiment, the mounting piece 1 is composed of the base 101 and the connecting lug 102 which are integrally formed, and a plurality of through holes 11 are arranged in the base 101 to facilitate the wire harness to pass through, and a glue pouring groove 13 is arranged between the top of the base 101 and the connecting lug 101 and the bottom of the base 101. The first wire harness 4 and the second wire harness 5 are respectively welded on the two end faces of the metal welding piece 7, the wire harness is connected by the metal welding piece 7, the metal welding piece 7 is arranged in the through hole 11, the uneven places in the welded wire harness are filled by pouring the flowable potting glue 6 in the glue pouring groove 13 and the through hole 11, that is, the welded connection of the wire harness and the sealing and fixing of the metal welding piece 7 are realized, the structure is simple and reliable, and the sealing requirement between the wire harness and the mounting piece is met, the motor oil gas can be effectively prevented from entering the inside of the controller, and the IP67 protection level of the motor and the controller is met. At the same time, the integrally formed metal insert 2 is arranged on the side of the connecting lug 102, the first connecting hole 21 is arranged on the metal insert 2, when the base 101 of the mounting piece 1 is inserted into the motor cylinder body 8, the first connecting hole 21 is aligned with the second connecting hole 81 of the motor cylinder body 8, and the metal insert 2 is compressed by the fastener, so that the mounting piece 1 is fixed, the vibration axial displacement which causes the wire harness to fail can be prevented, the assembly difficulty is reduced, and the vibration reliability is improved.

[0031] In this embodiment, the metal welding piece 7 is a copper sheet, the two ends of the copper sheet are respectively ultrasonic welded and fixed with the first wire harness 4 and the second wire harness 5, and the copper sheet has the advantages of low resistance, high connection stability, good heat conduction performance, good corrosion resistance and low maintenance cost.

[0032] As shown in Figure 4 , the metal welding piece 7 can be a rectangular copper sheet or an oval copper sheet or an L-shaped copper sheet to adapt to the welding of various wire harnesses, and the first wire harness 4 and the second wire harness 5 are respectively welded and fixed on the two ends of the copper sheet.

[0033] As shown in Figure 1 , Figure 3 and Figure 5 , the outer periphery of the base 101 is provided with a sealing groove 12, and a sealing ring 3 is arranged in the sealing groove 12 to realize the sealing nesting of the base 101 in the motor cylinder body 8. The mounting piece 1 and the motor cylinder body 8 are compressed and sealed by the O-shaped sealing ring 3, and the sealing requirement between the mounting piece 1 and the motor cylinder body 8 is met.

[0034] In this embodiment, the mounting piece 1 is made of plastic, and the mounting piece 1 and the metal insert 2 are integrally injection molded, so that the structure is simple and the reliability is high.

[0035] In this embodiment, the first wire harness 4 is a motor end wire harness, and the second wire harness 5 is a controller end wire harness.

[0036] Specifically, the first wire harness 4 head wire skin is stripped to expose the copper wire core, and is passed through the through hole 11 of the mounting piece 1, and the second wire harness 5 head wire skin is stripped to expose the copper wire core, the exposed copper wire of the first wire harness 4 and the second wire harness 5 is respectively overlapped at both ends of the metal welding piece 7, and is connected firmly by ultrasonic welding, the metal welding piece 7 is inserted into the through hole 11, the potting glue 6 is injected into the glue injection groove 13 of the mounting piece 1, the potting glue 6 can be closely combined with the wire harness welding place due to good fluidity, after the potting glue 6 is solidified, the wire harness assembly is inserted into the motor cylinder 8, and the axial displacement of the mounting piece 1 is limited by the bolt 9. Through the compression and rebound of the sealing ring 3 and the close combination of the potting glue 6 and the wire harness welding place, not only the sealing of the motor and the controller is realized, but also the IP67 protection level is achieved, and the structure is simple and stable.

[0037] In addition to the connector with the welding terminal described above, the utility model also provides a kind of electric automobile comprising the connector with the welding terminal disclosed in the above embodiment, and other structures of the electric automobile can refer to prior art, which will not be described here.

[0038] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not only limited to the above embodiment, and any technical scheme under the idea of the utility model belongs to the protection scope of the utility model.For the ordinary skilled in the art, some improvements and decorations without departing from the principle of the utility model should be considered as the protection scope of the utility model.

Claims

1. A connector having soldered terminals, characterized in that, The mounting piece (1), the first wire harness (4), the second wire harness (5) and the metal welding piece (7); the mounting piece (1) comprises an integrally formed base (101) and a connecting lug (102); the base (101) is provided with a plurality of through holes (11) penetrating the base (101) to allow the wire harness to pass through; the top of the base (101) and the connecting lug (102) and the bottom of the base (101) are provided with glue pouring grooves (13); the first wire harness (4) and the second wire harness (5) extend into the through holes (11), and the first wire harness (4) and the second wire harness (5) are respectively welded at both ends of the metal welding piece (7), the metal welding piece (7) is located in the through hole (11), the glue pouring groove (13) is filled with potting glue (6) to realize the sealing and fixing of the welding connection of the first wire harness (4) and the second wire harness (5) and the metal welding piece (7); the connecting lug (102) is provided with an integrally formed metal insert (2) on the side, and the metal insert (2) is provided with a first connecting hole (21); when the base (101) of the mounting piece (1) is inserted into the motor cylinder (8), the first connecting hole (21) is aligned with the second connecting hole (81) of the motor cylinder (8), and the metal insert (2) is compressed by the fastener to realize the fixing of the mounting piece (1). The metal welding piece (7) is a copper sheet, and the two ends of the copper sheet are respectively ultrasonic wave welded with the first wire harness (4) and the second wire harness (5).

2. The connector with a solder terminal according to claim 1, characterized by The metal welding piece (7) is a rectangular copper sheet.

3. The connector with a solder terminal according to claim 2, characterized by The metal welding piece (7) is an oval copper sheet.

4. The connector with a solder terminal according to claim 2, characterized by The metal welding piece (7) is an L-shaped copper sheet.

5. The connector with a solder terminal according to claim 2, characterized by The base (101) is provided with a sealing groove (12) on the outer periphery, and a sealing ring (3) is arranged in the sealing groove (12) to realize the sealing and nesting of the base (101) in the motor cylinder (8).

6. The connector with a solder terminal according to any one of claims 1 to 5, characterized by The mounting piece (1) is made of plastic, and the mounting piece (1) and the metal insert (2) are integrally injection molded.

7. The connector with a solder terminal according to any one of claims 1 to 5, characterized by One of the first wire harness (4) and the second wire harness (5) is a motor end wire harness, and the other is a controller end wire harness.

8. The connector with a solder terminal according to any one of claims 1 to 5, characterized by The first connecting hole (21) and the second connecting hole (81) are both threaded holes, and the fastener is a screw (9).

9. The connector with a solder terminal according to any one of claims 1 to 5, characterized by The connector with the welding terminal of any one of claims 1-9.

10. An electric vehicle, characterized by The connector with the welding terminal of any one of claims 1-9.

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