CN220066108U - Copper bar connecting assembly, motor controller and vehicle - Google Patents

Abstract

The utility model discloses a copper bar coupling assembling, motor controller and vehicle specifically, copper bar coupling assembling includes copper bar body, connecting piece and anti-overflow spare, and copper bar body links to each other with the connecting piece, and the connecting piece is inside to have the screw hole, and anti-overflow spare links to each other with the connecting piece, and anti-overflow spare is located the screw hole and keeps away from the bottom of connecting piece in order to seal the bottom of screw hole. The copper bar connecting assembly can prevent plastic from entering the threaded hole, and improves the stability of copper bar connection.

Description

Copper bar connecting assembly, motor controller and vehicle

Technical Field

The disclosure belongs to the technical field of vehicles, and particularly relates to a copper bar connecting assembly, a motor controller and a vehicle.

Background

The power density of the motor controller of the new energy automobile is gradually improved, the current output capability of the motor controller is required to be gradually improved, the large current transmission inside the motor controller is usually realized by copper bar connection, the connection part between the copper bars is required to be screwed by a metal thread insert, and meanwhile, the bottom of the metal thread insert is required to be completely coated with an insulating medium.

In the related art, the copper bar and the connecting piece are coated by adopting an integrated plastic, and the copper bar and the connecting piece are coated into a whole by a liquid plastic injection mode at high temperature. However, in the scheme of the integrated plastic coated copper bar and the connecting piece in the related art, in order to meet the requirement of miniaturization of the motor controller, through hole thread inserts are used, liquid plastic at high temperature can enter the inside of threads through holes at the bottoms of the inserts, the quantity and the height of plastic overflow are not controlled, the threads are occupied by foreign matters, and the risk that the matched bolts cannot be screwed in place, so that the fastened copper bar is loosened is caused.

Disclosure of Invention

The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the disclosure provides a copper bar connecting assembly, which can prevent plastic from entering the threaded hole and improve the stability of copper bar connection.

The embodiment of the disclosure also provides a motor controller.

The embodiment of the disclosure also provides a vehicle.

The copper bar connection assembly of the embodiment of the disclosure comprises: the copper bar comprises a copper bar body and a connecting piece, wherein the copper bar body is connected with the connecting piece, and a threaded hole is formed in the connecting piece; the anti-overflow piece is connected with the connecting piece, and the anti-overflow piece is located the screw hole is kept away from the bottom of connecting piece in order to seal the bottom of screw hole.

According to the copper bar connecting assembly, plastic can be prevented from entering the threaded hole, and the stability of copper bar connection is improved.

In some embodiments, the spill guard includes a plate body coupled to the connector, and the plate body has an outer diameter greater than an inner diameter of the threaded bore.

In some embodiments, the anti-overflow member further comprises a cylinder, the cylinder is connected with the plate body, and the cylinder is sleeved on the connecting member.

In some embodiments, the thickness of the plate body is A, and 0.5 mm.ltoreq.A.ltoreq.2 mm.

In some embodiments, the cylinder and the plate are both cylinders, and the outer diameters of the cylinder and the plate are the same, and/or the outer diameters of the cylinder and the plate are B, and 5 mm.ltoreq.B.ltoreq.20 mm.

In some embodiments, the spill guard is flush with the bottom surface of the threaded bore adjacent to a side end surface of the connector.

In some embodiments, the copper bar connection assembly further comprises an injection molding piece that wraps around the copper bar body, the connection piece, and the spill guard.

In some embodiments, the copper bar connection assembly further comprises a fastener threaded within the threaded bore to secure the copper bar body.

The motor controller of the embodiment of the disclosure comprises the copper bar connecting assembly according to any one of the embodiments.

The vehicle of the embodiment of the present disclosure includes the motor controller as described in the above embodiment.

Drawings

Fig. 1 is an exploded view of a related art copper bar connection assembly.

Fig. 2 is a sectional view of a related art copper bar connection assembly.

Fig. 3 is a schematic structural view of a copper bar connection assembly according to an embodiment of the present disclosure.

Fig. 4 is a partial enlarged view of the region a shown in fig. 3.

Fig. 5 is an exploded view of a copper bar connection assembly of an embodiment of the present disclosure.

Fig. 6 is a cross-sectional view of a copper bar connection assembly of an embodiment of the present disclosure.

FIG. 7 is a schematic structural view of an spill guard according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural view of an overflow prevention device according to another embodiment of the present disclosure.

Reference numerals:

copper bar body 1, connecting piece 2 and threaded hole 21

An overflow preventing member 3, a plate 31, a cylinder 32,

injection molding 4, fastener 5.

Detailed Description

Embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, are described in detail below. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

As shown in fig. 1 and 2, the copper bar connecting assembly in the related art wraps the copper bar body 1 and the connecting piece 2 together through the injection molding piece 4 which is in a liquid state at a high temperature, and after the temperature is restored to the room temperature, the injection molding piece 4 is solidified, the copper bar and the connecting piece 2 are fixed in the injection molding piece 4, and the copper bar body, the connecting piece 2 and the injection molding piece are integrated. As shown in fig. 2, the injection molding piece 4 in the liquid state enters the threaded hole through the bottom of the threaded hole in the connecting piece 2, after the injection molding piece 4 is cooled to room temperature, an internal overflow glue material is formed, the length of the internal thread of the effective threaded hole can be eroded due to the existence of the overflow glue material, when the fastener 5 stretches into the threaded hole, the fastener 5 cannot be screwed into the design position due to the fact that the thread is occupied by foreign matters, the copper bar body 1 cannot be clamped, and the copper bar is loose.

The copper bar connecting assembly comprises a copper bar body 1, a connecting piece 2 and an overflow preventing piece, wherein the copper bar body 1 is connected with the connecting piece 2, a threaded hole is formed in the connecting piece 2, the overflow preventing piece is connected with the connecting piece 2, and the overflow preventing piece is located at the bottom of the threaded hole away from the bottom of the connecting piece 2 to seal the bottom of the threaded hole.

Specifically, as shown in fig. 3 and 4, the upper end of the connecting piece 2 is connected with the copper bar body 1, the connecting piece 2 is provided with a threaded hole penetrating through the connecting piece 2 along the up-down direction, the anti-overflow piece is arranged at the lower end of the connecting piece 2, and the anti-overflow piece is used for sealing the bottom of the threaded hole.

For example, the spill-proof member may be a metal spill-proof member or a plastic spill-proof member. The spill guard may be attached to the connector 2 by means of bonding, welding, interference fit or riveting.

The copper bar connecting assembly of the embodiment of the disclosure can seal the bottom of the threaded hole by arranging the anti-overflow piece at the bottom of the threaded hole, so that liquid plastic is prevented from entering the threaded hole through the bottom of the threaded hole, foreign matter accumulation is prevented from being formed in the threaded hole, the fastener 5 is guaranteed to be screwed to a design position, and the stability of copper bar connection is improved.

In some embodiments, the spill guard comprises a plate 31, the plate 31 being connected to the connector 2, and the plate 31 having an outer diameter greater than an inner diameter of the threaded bore.

Specifically, as shown in fig. 5 and 6, the anti-overflow member is in a sheet shape, and the anti-overflow member is in a circular sheet shape, the upper end surface of the anti-overflow member contacts with the lower end surface of the connecting member 2 to seal the bottom of the threaded hole, the outer diameter of the plate 31 is larger than the inner diameter of the threaded hole, or the outer diameter of the plate 31 is equal to the inner diameter of the threaded hole, it should be noted that when the outer diameter of the plate 31 is smaller than the inner diameter of the threaded hole, liquid plastic is easily caused to flow into the threaded hole through the gap between the anti-overflow member and the threaded hole, thereby causing foreign matters to accumulate inside the threaded hole.

In some embodiments, the spill guard further comprises a barrel 32, the barrel 32 is connected to the plate 31, and the barrel 32 is sleeved on the connecting member 2.

Specifically, as shown in fig. 8, the cylinder 32 is located at the upper end of the plate 31, the cylinder 32 is sleeved outside the connecting piece 2, the inner wall surface of the cylinder 32 contacts with the outer wall surface of the connecting piece 2, and the cylinder 32 can provide connection stability between the overflow preventing piece and the connecting piece 2 and can also improve the structural strength of the connecting piece 2.

In some embodiments, the thickness of the plate 31 is A, and 0.5 mm.ltoreq.A.ltoreq.2 mm.

For example, the thickness a of the plate 31 may be 0.5mm, 1mm, 1.2mm, 1.35mm, 1.5mm or 2mm, and it should be noted that the liquid plastic has a certain pressure, when the thickness of the plate 31 is too small, the structural strength of the plate 31 is lower, the pressure of the liquid plastic cannot be borne, and the plate 31 is broken, so that the liquid plastic enters the threaded hole, otherwise, when the thickness of the plate 31 is too large, the volume is too large, and the volume of the whole copper bar connecting assembly and the motor controller are affected.

In some embodiments, the cylinder 32 and the plate 31 are both cylinders, and the outer diameters of the cylinder 32 and the plate 31 are the same, and/or the outer diameters of the cylinder 32 and the plate 31 are B, and 5 mm.ltoreq.B.ltoreq.20 mm.

For example, the outer diameters of the cylinder 32 and the plate 31 are B, and may be 5mm, 7mm, 10mm, 10.5mm, 15mm or 20mm, and it is to be noted that the liquid plastic has a certain pressure, and when the outer diameter of the cylinder 32 is too small, the structural strength of the cylinder 32 is low, the pressure of the liquid plastic cannot be borne, the cylinder 32 is broken, so that the anti-overflow member is broken, and the liquid plastic is led to enter the threaded hole, otherwise, when the outer diameter of the cylinder 32 is too large, the volume of the cylinder 32 is too large, and the volume of the whole copper bar connecting assembly and the motor controller is affected.

The outer diameters of the cylinder 32 and the plate 31 are the same, so that the outer surface of the whole anti-overflow part is kept flat, and the fluidity of the liquid plastic is ensured.

In some embodiments, one side end surface of the spill guard adjacent the connector 2 is flush with the bottom surface of the threaded bore.

Specifically, as shown in fig. 6, the upper end surface of the overflow preventing member is flush with the bottom surface of the threaded hole, so that the effective length of the internal thread of the threaded hole is ensured, the design position of the fastener 5 screwed into the threaded hole is ensured, and the connection stability of the copper bar body 1 is improved.

In some embodiments, the copper bar connection assembly further comprises an injection molding piece 4, wherein the injection molding piece 4 is coated outside the copper bar body 1, the connection piece 2 and the overflow prevention piece.

After the connecting piece 2, the copper bar body 1 and the anti-overflow piece are connected, the high-temperature liquid plastic is coated outside the connecting piece 2, the copper bar body 1 and the anti-overflow piece, and the injection molding piece 4 is formed after the liquid plastic is cooled. Because connecting piece 2, copper bar body 1 and anti-overflow piece have carried out the pre-connection to prevent taking place relative movement between the three in the injection molding process, lead to the anti-overflow piece position to take place the skew, have the risk that residual sizing material got into the screw thread inside.

Through at connecting piece 2, copper bar body 1 and anti-overflow spare cladding injection molding 4, make the three form a whole, improved copper bar coupling assembling's structural strength.

In some embodiments, the copper bar connection assembly further comprises a fastener 5, the fastener 5 being threaded into the threaded bore to secure the copper bar body 1.

Specifically, as shown in fig. 4, the fastener 5 is inserted into the threaded hole, for example, the fastener 5 may be a screw, and the screw is matched with the internal thread in the threaded hole to fasten the copper bar.

The motor controller of the embodiment of the disclosure comprises the copper bar connecting assembly according to any one of the embodiments.

The vehicle of the embodiment of the present disclosure includes the motor controller of the above embodiment.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present disclosure.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In this disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present disclosure have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present disclosure.

Claims (10)

1. A copper bar connection assembly, comprising:

the copper bar comprises a copper bar body and a connecting piece, wherein the copper bar body is connected with the connecting piece, and a threaded hole is formed in the connecting piece;

the anti-overflow piece is connected with the connecting piece, and the anti-overflow piece is located the screw hole is kept away from the bottom of connecting piece in order to seal the bottom of screw hole.

2. The copper bar connection assembly of claim 1, wherein the spill guard comprises a plate body connected to the connection member and having an outer diameter greater than an inner diameter of the threaded bore.

3. The copper bar connection assembly of claim 2, wherein the spill guard further comprises a barrel, the barrel is connected to the plate, and the barrel is sleeved on the connection member.

4. The copper bar connection assembly according to claim 3, wherein the thickness of the plate body is A, and A is more than or equal to 0.5mm and less than or equal to 2mm.

5. A copper bar connection assembly according to claim 3, wherein the cylinder and the plate are both cylinders, and the outer diameters of the cylinder and the plate are the same, and/or the outer diameters of the cylinder and the plate are B, and 5mm is equal to or less than B is equal to or less than 20mm.

6. The copper bar connection assembly of claim 1, wherein a side end surface of the spill guard adjacent the connection member is flush with a bottom surface of the threaded bore.

7. The copper bar connection assembly of any one of claims 1-6, further comprising an injection molded piece that wraps around the copper bar body, the connection piece, and the spill guard.

8. The copper bar connection assembly of any one of claims 1-6, further comprising a fastener threaded within the threaded bore to secure the copper bar body.

9. A motor controller comprising a copper bar connection assembly according to any one of claims 1-8.

10. A vehicle comprising a motor controller as claimed in claim 9.