Injection molding copper bar with additional installation step surface

Abstract

The utility model relates to the field of high-voltage copper bars, and discloses an injection-molded copper bar added with an installation step surface, which comprises a copper bar body and an injection-molded part formed outside the copper bar body in an injection molding manner, and the two ends of the injection-molded part are provided with avoiding grooves used for exposing connecting surfaces at the two ends of the copper bar body. The two ends of the copper bar body are provided with bosses extending out of the avoiding grooves in a protruding mode, the end faces of the bosses form the connecting faces, glue avoiding gaps for preventing plastic from being attached to the connecting faces exist between the bosses and the avoiding grooves, and the glue avoiding gaps formed between the bosses and the avoiding grooves can prevent the plastic from being attached to the connecting faces when the copper bar body is subjected to the insert injection molding process. According to the utility model, plastic cement is prevented from overflowing to the connecting surface, so that the probability of direct contact between other parts and the plastic cement when the other parts are mounted on the connecting surface is reduced, and the conditions of serious heating and the like of the copper bar in use are reduced; and the glue sealing between the copper bar body and the injection molding part is more convenient and time-saving, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure copper bar field especially relates to a kind of injection molding copper bars of increasing installation step surface. BACKGROUND

[0002] Chinese patent with the publication number CN211719788U discloses a kind of no collapse angle high pressure copper bar, including the conductive body of plate and the connecting portion being respectively arranged in the both ends of conductive body, horizontal connecting surface is equipped on the connecting portion, symmetrical side end face is equipped on the both sides of the connecting portion, the side end face is vertically arranged with connecting portion, the middle part of the conductive body is bent down and forms bending portion, the connecting portion is symmetrically arranged in the both ends of bending portion, the thickness of bending portion is less than or equal to connecting portion.

[0003] The copper bar needs to be embedded in the injection molding process after production, and the connecting surface on the copper bar is usually flush with the surface of the injection layer during the embedded injection molding process of the copper bar.If the flatness of the connecting surface is poor, the plastic is easy to overflow onto the connecting surface during the embedded injection molding process of the copper bar, and the connecting surface with plastic on the surface will be bonded with the connecting surface of other copper bars, which will cause the contact resistance to increase due to the presence of plastic, resulting in serious heating and other conditions during use. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of injection molding copper bars of increasing installation step surface in view of the shortcomings that plastic is easy to overflow onto the connecting surface of copper bar during embedded injection molding process in prior art, which causes copper bar to be easy to appear serious heating and other conditions during use.

[0005] To solve the above technical problems, the utility model solves the problems by the following technical solutions:

[0006] A kind of injection molding copper bar of increasing installation step surface, including copper bar body and injection molding in the outside of copper bar body injection molding piece, the both ends of injection molding piece are provided with the avoiding slot for exposing the connecting surface of the both ends of copper bar body, the both ends of copper bar body are provided with the boss extending to the outside of avoiding slot and the end surface of boss forms the connecting surface, and there is a plastic-avoiding gap between boss and avoiding slot to avoid plastic from sticking to the connecting surface.

[0007] By the above scheme, the plastic-avoiding gap between the boss and the avoiding slot can reduce the overflow of plastic onto the connecting surface during the embedded injection molding process of the copper bar body, thereby reducing the probability of direct contact between the plastic and other components installed on the connecting surface, and reducing the occurrence of serious heating and other conditions during use of the copper bar. At the same time, the copper bar body and the injection molding piece can also be sealed at the plastic-avoiding gap when sealing, making the sealing between the copper bar body and the injection molding piece more convenient and time-saving, and improving the production efficiency.

[0008] Preferably, a preventing part is arranged between the avoiding groove and the copper bar body to prevent the end of the connecting surface from being pulled out of the avoiding groove.

[0009] Preferably, the preventing part comprises a preventing plate arranged at one end of the avoiding groove opposite to the other end, and a limiting blind groove arranged at each end of the copper bar body, the preventing plate is inserted into the limiting blind groove, and the end of the preventing plate close to the bottom of the avoiding groove is overlapped with the bottom of the limiting blind groove.

[0010] By the above scheme, the preventing plate arranged on the avoiding groove can abut against the bottom of the limiting blind groove on the copper bar body when the injection molding part is molded on the copper bar body, thereby supporting the two ends of the copper bar body and reducing the probability that the connecting surface of the two ends of the copper bar body is pulled out of the avoiding groove.

[0011] Preferably, a glue collecting part is arranged on the glue avoiding gap to collect the plastic glue overflowing on the glue avoiding gap and further reduce the probability that the plastic glue sticks to the connecting surface.

[0012] Preferably, the glue collecting part comprises a glue collecting groove arranged along the circumference of the surface of the glue avoiding gap.

[0013] By the above scheme, the glue collecting groove can collect the plastic glue overflowing on the glue avoiding gap, so that more overflowing plastic glue can be collected on the glue avoiding gap, thereby reducing the probability that the plastic glue overflowing on the glue avoiding gap flows along the side wall of the boss to the connecting surface and reducing the probability that the copper bar generates serious heat during use.

[0014] Preferably, the glue collecting groove is arranged at one end of the glue avoiding gap close to the boss.

[0015] Preferably, a flow blocking plate is arranged along the circumference of the side wall of the boss to reduce the probability that the plastic glue flowing on the glue avoiding gap flows along the side wall of the boss to the connecting surface, and the end of the flow blocking plate close to the glue avoiding gap is lower than the connecting surface.

[0016] By the above scheme, the flow blocking plate can block the plastic glue overflowing on the glue avoiding gap, thereby reducing the probability that the plastic glue overflowing on the glue avoiding gap flows along the side wall of the boss to the connecting surface and further reducing the probability that the copper bar generates serious heat during use.

[0017] The utility model discloses a copper bar and injection molding part, which has the following technical effects: the glue avoiding gap arranged between the boss and the avoiding groove can reduce the plastic glue overflowing on the connecting surface when the copper bar body is subjected to the insert injection molding process, thereby reducing the probability that other components directly contact the plastic glue when being installed on the connecting surface, reducing the probability that the copper bar generates serious heat during use, and facilitating the glue sealing between the copper bar body and the injection molding part when the copper bar body and the injection molding part are subjected to the glue sealing, thereby saving time and improving the production efficiency. Attached Figure Description

[0018] Figure 1 This is an isometric view of an injection-molded copper busbar with an added mounting step surface in Embodiment 1;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is an isometric view of the injection molded part in Example 1;

[0021] Figure 4 This is an isometric view of the copper busbar body in Embodiment 1;

[0022] Figure 5 This is an isometric view of an injection-molded copper busbar with an added mounting step surface in Embodiment 2;

[0023] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 This is an isometric view of the copper busbar body in Embodiment 2;

[0025] Figure 8 yes Figure 7 Enlarged view of point C in the middle.

[0026] The parts referred to by the numbers in the above attached figures are as follows: 1. Copper busbar body; 2. Injection molded part; 3. Connecting surface; 4. Clearance groove; 5. Anti-detachment plate; 6. Limiting blind groove; 7. Glue collection groove; 8. Baffle plate; 9. Boss; 10. Glue clearance. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] A type of injection-molded copper busbar with added mounting steps, reference Figures 1-4 The copper busbar body 1 includes an injection molded part 2 that is injection molded outside the copper busbar body 1. Both ends of the injection molded part 2 are provided with relief grooves 4 for exposing the connecting surfaces 3 at both ends of the copper busbar body 1. Both ends of the copper busbar body 1 are provided with bosses 9 that extend outside the relief grooves 4, and the end faces of the bosses 9 form the connecting surfaces 3. There is a glue-avoiding gap 10 between the bosses 9 and the relief grooves 4 to prevent plastic from sticking to the connecting surfaces 3.

[0030] The anti-extrusion component is arranged between the avoiding groove 4 and the copper bar body 1, and is composed of an anti-extrusion plate 5 arranged on one end of the avoiding groove 4 and a limiting blind groove 6 arranged on the copper bar body 1, and the anti-extrusion plate 5 is inserted into the limiting blind groove 6.

[0031] Embodiment 2

[0032] The embodiment is different from the embodiment 1 in that a reference Figures 5-8 The glue-collecting component is arranged on the glue-avoiding gap 10, and is composed of a glue-collecting groove 7 arranged on the surface of the glue-avoiding gap 10.

[0033] The flow-stopping plate 8 is arranged on the side wall of the boss 9, and is arranged on the surface of the boss 9, and the end of the flow-stopping plate 8 close to the glue-avoiding gap 10 is lower than the connecting surface 3.

[0034] When the copper bar body 1 is subjected to the insert injection molding process, the plastic can flow to the glue-avoiding gap 10 on both sides of the copper bar body 1, and the plastic flowing to the glue-avoiding gap 10 can gradually flow into the glue-collecting groove 7 to collect the plastic, thereby reducing the probability of the plastic flowing to the connecting surface 3 along the side wall of the boss 9 and reducing the probability of the copper bar generating serious heat during use.

[0035] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. An injection molded copper bar with increased mounting step surface, comprising a copper bar body (1) and an injection molded part (2) injection molded on the outside of the copper bar body (1), both ends of the injection molded part (2) being provided with a clearance groove (4) for exposing a connecting surface (3) of both ends of the copper bar body (1), characterized in that: The both ends of the copper bar body (1) are provided with protrusions (9) extending out of the avoiding grooves (4), and the end faces of the protrusions (9) form the connecting faces (3), and there are glue-avoiding gaps (10) between the protrusions (9) and the avoiding grooves (4) to avoid the plastic sticking to the connecting faces (3).

2. The injection-molded copper bar with an increased mounting step surface according to claim 1, characterized in that: A preventing falling-off component is arranged between the avoiding grooves (4) and the copper bar body (1) to prevent the end part of the connecting face (3) from falling out of the avoiding grooves (4).

3. The injection molded copper busbar with an increased mounting step surface according to claim 2, characterized in that: The preventing falling-off component comprises a preventing falling-off plate (5) protruding from one end of the copper bar body (1) opposite to the avoiding grooves (4), and limiting blind grooves (6) arranged at the both ends of the copper bar body (1) respectively for the preventing falling-off plate (5) to insert, and when the preventing falling-off plate (5) is inserted into the limiting blind grooves (6), the end of the preventing falling-off plate (5) close to the groove bottom of the avoiding grooves (4) is overlapped with the groove bottom of the limiting blind grooves (6).

4. The injection molded copper busbar with an increased mounting step surface according to claim 1, characterized in that: A glue collecting component is arranged on the glue-avoiding gaps (10) to collect the plastic overflowing on the glue-avoiding gaps (10) and further reduce the plastic sticking to the connecting faces (3).

5. The injection molded copper busbar with an added mounting step surface according to claim 4, wherein: The glue collecting component comprises glue collecting grooves (7) arranged along the circumferences of the glue-avoiding gaps (10).

6. The injection molded copper busbar with an added mounting step surface according to claim 5, wherein: The glue collecting grooves (7) are arranged at one end of the glue-avoiding gaps (10) close to the protrusions (9).

7. The injection molded copper busbar with an increased mounting step surface according to claim 1, characterized in that: A flow preventing plate (8) is arranged along the circumferences of the side walls of the protrusions (9) to reduce the probability of the plastic flowing on the glue-avoiding gaps (10) flowing along the side walls of the protrusions (9) to the connecting faces (3), and the end of the flow preventing plate (8) close to the glue-avoiding gaps (10) is lower than the connecting faces (3).

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