Power connector

Abstract

The utility model provides a power supply connector, which comprises an insulating body, a power supply terminal pair fixed on the insulating body and a locking piece connected with the power supply terminal pair, and is characterized in that the insulating body is provided with a plurality of terminal grooves which are arranged side by side along the transverse direction; each power supply terminal pair comprises two power supply terminals which are oppositely arranged in the transverse direction, the two power supply terminals in the same power supply terminal pair are connected through the locking piece, and the locking piece is provided with a flat-plate-shaped base plate part and a protruding part which protrudes forwards from the base plate part. The power supply terminal pair is provided with a clamping groove for accommodating and clamping the substrate part; and the protruding part is positioned between the two power supply terminals in the transverse direction and is limited by the two power supply terminals. The power supply connector is simple and convenient to manufacture and low in cost.

Description

Technical Field

[0001] The utility model relates to a power connector. Background Art

[0002] Power connectors are a common electrical connector primarily used for transmitting current. Traditional power connectors typically include one or more power terminals and an insulating base that supports and insulates the terminals. Several power terminals can be connected in parallel via a terminal busbar to transmit high currents.

[0003] However, in traditional power connectors, the manufacturing cost of the power connector remains high due to the complex structure and high manufacturing difficulty of the locking piece connecting the power terminals. In addition, the installation and positioning between the locking piece, the power terminals and the insulating base are also relatively complicated, making assembly and disassembly difficult.

[0004] In view of this, it is necessary to improve the existing power connector to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a power connector that is simple, convenient and low in cost to manufacture.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a power connector, which includes an insulating body, a power terminal pair fixed to the insulating body and a locking piece connected to the power terminal pair, the insulating body has a plurality of terminal slots arranged side by side in the transverse direction, each of the power terminal pairs includes two power terminals arranged opposite to each other in the transverse direction, the locking piece connects the two power terminals in the same power terminal pair, the locking piece has a flat-plate-shaped substrate portion and a protruding portion protruding forward from the substrate portion, the power terminal pair has a locking groove for accommodating and locking the substrate portion, and the protruding portion is located between the two power terminals in the transverse direction and is limited by them.

[0007] As a further improvement of the present invention, each of the terminal grooves is formed by a pair of first groove walls arranged opposite to each other in the height direction and a pair of second groove walls arranged opposite to each other in the lateral direction, and the top end of the substrate portion abuts against the first groove wall located on the upper side.

[0008] As a further improvement of the present invention, each of the power terminals has a fixed portion, a contact portion extending forward from the fixed portion, and a connecting portion bent from the fixed portion. The locking groove is arranged at the connecting portion between the fixed portion and the connecting portion, and is recessed downward from the upper end surface of the fixed portion.

[0009] As a further improvement of the present invention, each of the connecting parts is provided with a through slot formed through it in the front-to-back direction, and the locking piece also has an installation slot formed through it in the front-to-back direction, and the installation slot is aligned with the through slot front-to-back for the external connecting piece to be inserted and fixed thereto.

[0010] As a further improvement of the present invention, the fixing portion includes a first fixing portion located on the front side, a second fixing portion formed by bending from the rear end of the first fixing portion, a third fixing portion formed by extending backward from the rear end of the second fixing portion, and a fourth fixing portion connecting the third fixing portion with the connecting portion. The fourth fixing portion is curved, and its upper end surface is located on the lower side of the upper end surface of the third fixing portion to form the positioning groove on the upper side of the fourth fixing portion and the rear side of the third fixing portion.

[0011] As a further improvement of the present invention, each terminal groove includes a first groove and a second groove connected front to back, and a stop surface located between the first groove and the second groove, the stop surface is set toward the rear, and the second fixing part abuts against the stop surface forward.

[0012] As a further improvement of the present invention, the substrate portion and the connecting portion of the power terminal pair are stacked in the front-to-back direction, and the front-to-back distance between the rear end face of the third fixing portion and the connecting portion located on the front side is smaller than the spacing distance in the lateral direction between the two third fixing portions in the same power terminal pair.

[0013] As a further improvement of the present invention, the substrate portion includes a first and a second substrate connected up and down, the width of the first substrate in the transverse direction is greater than the width of the second substrate in the transverse direction, and the two side portions of the first substrate in the transverse direction are inserted into the positioning groove and supported and positioned by the upper end face of the fourth fixing portion.

[0014] As a further improvement of the present invention, the protruding portion is in a truncated cone shape, and the wall thickness thereof gradually increases from the front to the rear.

[0015] As a further improvement of the present invention, the two power terminals in each power terminal pair are accommodated in the same terminal slot, and the connection portion of one power terminal is located inside the terminal slot, and the connection portion of the other power terminal is located outside the terminal slot. In the same power terminal pair, the connection portion of one power terminal is located behind the connection portion of the other power terminal, and the width of the connection portion located on the rear side in the transverse direction is greater than the width of the connection portion located on the front side in the transverse direction.

[0016] Beneficial effects of the present invention: The power connector of the present invention is configured to have a locking piece with a flat-plate-shaped base plate portion and a protruding portion protruding forward from the base plate portion, and the base plate portion is received and clamped in the clamping groove of the power terminal pair, and the protruding portion is clamped between the two power terminals in the horizontal direction and limited by them, thereby realizing mechanical and electrical connection with the external connecting piece through the locking piece. The locking piece has a simple structure, is easy to manufacture, and is easy to install and remove from the power terminal pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional assembly diagram of the power connector of the utility model.

[0018] Figure 2 yes Figure 1 Partially exploded view of the power connector shown.

[0019] Figure 3 yes Figure 1 An enlarged view of a portion of the power connector shown with some power contact pairs and locking hardware removed.

[0020] Figure 4 yes Figure 1 A perspective assembly diagram of the power connector's power terminal pair and locking hardware is shown.

[0021] Figure 5 yes Figure 4 Exploded perspective view of the power terminal pair and locking hardware shown.

[0022] Figure 6 yes Figure 5 Another view of the power terminal pair and locking hardware shown.

[0023] Figure 7 yes Figure 5 Further exploded view of the power terminal pair and locking hardware shown.

[0024] Figure 8 yes Figure 1 Cross-section view of the power connector shown. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the scope of protection of the present invention.

[0026] Please refer to Figures 1 to 8The figure shows a preferred embodiment of the power connector 100 of the present invention. In this embodiment, the power connector 100 includes an insulating body 1, a power terminal pair 2 fixed to the insulating body 1, and a locking member 3 connected to the power terminal pair 2, wherein the locking member 3 is mechanically and electrically connected to the power terminal pair 2.

[0027] For ease of explanation, when introducing the power connector 100 below, the mating end of the power connector 100 will be regarded as the front end and the other end arranged opposite to it will be regarded as the rear end. That is, the front-to-back direction is the plugging direction of the power connector 100 and the mating connector (not shown). At the same time, a direction perpendicular to the front-to-back direction is defined as the lateral direction, and another direction perpendicular to the front-to-back direction is defined as the height direction. In this embodiment, the dimension of the insulating body 1 in the lateral direction is greater than its dimension in the height direction.

[0028] Please refer to Figures 1 to 3 and Figure 8 As shown, the insulating body 1 has a plurality of terminal grooves 101 arranged side by side along the transverse direction, each of the terminal grooves 101 includes a first groove 1012 and a second groove 1013 connected front to back, and a stop surface 1014 located between the first groove 1012 and the second groove 1013, and the stop surface 1014 is arranged toward the rear.

[0029] Please refer to Figures 4 to 8 As shown, each power terminal pair 2 includes two power terminals 21 arranged opposite to each other in the transverse direction. The locking member 3 connects the two power terminals 21 in the same power terminal pair 2. The locking member 3 has a flat substrate portion 31 and a protruding portion 32 protruding forward from the substrate portion 31. The power terminal pair 2 has a locking groove 201 for accommodating and locking the substrate portion 31. The protruding portion 32 is located between the two power terminals 2 in the transverse direction and is limited by it.

[0030] In addition, each of the terminal slots 101 is formed by a pair of first slot walls 1015 disposed opposite to each other in the height direction and a pair of second slot walls 1016 disposed opposite to each other in the lateral direction. The top end of the substrate portion 31 abuts against the first slot wall 1015 located on the upper side.

[0031] Each of the power terminals 21 has a fixing portion 202, a contact portion 203 extending forward from the fixing portion 202, and a connecting portion 204 bent from the fixing portion 202. The locking groove 201 is arranged at the connecting portion between the fixing portion 202 and the connecting portion 204, and is formed by being recessed downward from the upper end surface of the fixing portion 202.

[0032] Specifically, the fixing portion 202 includes a first fixing portion 2021 located on the front side, a second fixing portion 2022 formed by bending from the rear end of the first fixing portion 2021, a third fixing portion 2023 formed by extending backward from the rear end of the second fixing portion 2022, and a fourth fixing portion 2024 connecting the third fixing portion 2023 with the connecting portion 204. When the power terminal pair 2 is assembled into the insulating body 1, the second fixing portion 2022 abuts forward against the stop surface 1014.

[0033] The fourth fixing portion 2024 is curved, and its upper end surface is located below the upper end surface of the third fixing portion 2023 , so as to form the locking groove 201 on the upper side of the fourth fixing portion 2024 and the rear side of the third fixing portion 2023 .

[0034] The connecting portion 204 is provided with a through slot 2041 formed therethrough in the front-to-back direction, and the locking member 3 also has an installation slot 34 formed therethrough in the front-to-back direction. The installation slot 34 is aligned with the through slot 2041 in the front-to-back direction for an external connecting member (not shown) to be inserted and fixed thereto.

[0035] In addition, the fixing portion 202 further includes a retaining portion 2025 formed by tearing the first fixing portion 2021 . The retaining portion 2025 abuts against a retaining groove provided on the second groove wall 1016 to prevent the retaining portion 2025 from retreating backward from the terminal groove 101 .

[0036] In this embodiment, the top end of the base plate portion 31 is located above the upper end surface of the connecting portion 204 and above the upper end surface of the fixing portion 202 .

[0037] The substrate portion 31 and the connecting portion 204 of the power terminal pair 2 are stacked in the front-to-back direction, and the front-to-back distance between the rear end face of the third fixing portion 2023 and the connecting portion 204 located on the front side is smaller than the spacing distance in the lateral direction between the two third fixing portions 2023 in the same power terminal pair 2.

[0038] Specifically, if Figure 4 and Figure 6 As shown, the substrate portion 31 includes a first substrate 311 and a second substrate 312 connected to each other in the upper and lower directions. The width of the first substrate 311 in the horizontal direction is greater than the width of the second substrate 312 in the horizontal direction, so that the substrate portion 31 is in an inverted convex shape as a whole. The two side portions of the first substrate 311 in the horizontal direction are inserted into the positioning groove 201 and are supported and positioned by the upper end surface of the fourth fixing portion 2024.

[0039] like Figure 8As shown, in the present invention, the protrusion 32 is truncated cone-shaped, and its wall thickness gradually increases from front to back. This increases the structural strength of the connection between the protrusion 32 and the base plate 31, preventing cracking under excessive locking force. Furthermore, the protrusion 32 includes a front protrusion 321, whose wall thickness exhibits a first changing trend, and a rear protrusion 322, whose wall thickness exhibits a second changing trend. From front to back, the rear protrusion 322 thickens more gradually than the front protrusion 321, and the rear protrusion 322 is longer in the front-to-back direction than the front protrusion 321. This increases the connection strength of the locking member 3 and prevents cracking in the rear portion, which is subject to greater force.

[0040] The two power terminals 21 in each power terminal pair 2 are accommodated in the same terminal slot 101, and the connecting portion 204 of one power terminal 21 is located inside the terminal slot 101, and the connecting portion 204 of the other power terminal 21 is located outside the terminal slot 101. In the same power terminal pair 2, the connecting portion 204 of one power terminal 21 is located on the rear side of the connecting portion 204 of the other power terminal 21, and the width of the connecting portion 204 on the rear side in the transverse direction is greater than the width of the connecting portion 204 on the front side in the transverse direction, so as to form a larger connection surface on the rear side to connect to the external connecting part to ensure uniform force.

[0041] The power connector 100 of the present invention is configured such that the locking member 3 has a flat substrate portion 31 and a protruding portion 32 protruding forward from the substrate portion 31. The substrate portion 31 is received and positioned within the positioning groove 201 of the power terminal pair 2. The protruding portion 32 is laterally sandwiched between the two power terminals and limited thereby, thereby achieving mechanical and electrical connection with an external connector through the locking member 3. The locking member 3 has a simple structure, is easy to manufacture, and is convenient to install and remove from the power terminal pair 2.

[0042] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A power connector comprising an insulating body, a power terminal pair fixed to the insulating body, and a locking member connected to the power terminal pair, wherein the insulating body has a plurality of terminal slots arranged side by side in a transverse direction, each power terminal pair comprising two power terminals arranged opposite each other in the transverse direction, and the locking member connects the two power terminals in the same power terminal pair, characterized in that: The locking piece has a flat plate-shaped base plate portion and a protruding portion protruding forward from the base plate portion. The power terminal pair has a locking groove for accommodating and locking the base plate portion. The protruding portion is located between the two power terminals in the horizontal direction and is limited by them.

2. The power connector according to claim 1, wherein: Each of the terminal grooves is formed by a pair of first groove walls arranged opposite to each other in the height direction and a pair of second groove walls arranged opposite to each other in the lateral direction, and the top end of the base plate portion abuts against the first groove wall located on the upper side.

3. The power connector according to claim 2, wherein: Each of the power terminals has a fixing portion, a contact portion extending forward from the fixing portion, and a connecting portion bent from the fixing portion. The positioning groove is arranged at the connecting portion between the fixing portion and the connecting portion, and is recessed downward from the upper end surface of the fixing portion.

4. The power connector according to claim 3, wherein: Each of the connecting parts is provided with a through slot formed through it in the front-to-back direction, and the locking piece also has an installation slot formed through it in the front-to-back direction. The installation slot is aligned with the through slot in the front-to-back direction for the external connecting piece to be inserted and fixed thereto.

5. The power connector according to claim 3, wherein: The fixing portion includes a first fixing portion located on the front side, a second fixing portion formed by bending from the rear end of the first fixing portion, a third fixing portion formed by extending backward from the rear end of the second fixing portion, and a fourth fixing portion connecting the third fixing portion with the connecting portion. The fourth fixing portion is curved, and its upper end surface is located on the lower side of the upper end surface of the third fixing portion to form the positioning groove on the upper side of the fourth fixing portion and the rear side of the third fixing portion.

6. The power connector according to claim 5, wherein: Each of the terminal slots includes a first slot and a second slot connected front to back, and a stop surface between the first slot and the second slot. The stop surface is arranged toward the rear, and the second fixing portion abuts against the stop surface forward.

7. The power connector according to claim 5, wherein: The substrate portion and the connecting portion of the power terminal pair are stacked in the front-to-back direction, and the front-to-back distance between the rear end surface of the third fixing portion and the connecting portion located on the front side is smaller than the spacing distance in the lateral direction between the two third fixing portions in the same power terminal pair.

8. The power connector according to claim 7, wherein: The substrate portion includes a first substrate and a second substrate connected vertically, the width of the first substrate in the transverse direction is greater than the width of the second substrate in the transverse direction, and both side portions of the first substrate in the transverse direction are inserted into the positioning groove and supported and positioned by the upper end surface of the fourth fixing portion.

9. The power connector according to claim 7, wherein: The protruding portion is in a truncated cone shape, and the wall thickness thereof gradually increases from the front to the rear.

10. The power connector according to any one of claims 3 to 9, wherein: The two power terminals in each power terminal pair are accommodated in the same terminal slot, and the connection portion of one power terminal is located inside the terminal slot, and the connection portion of the other power terminal is located outside the terminal slot. In the same power terminal pair, the connection portion of one power terminal is located behind the connection portion of the other power terminal, and the width of the connection portion on the rear side in the lateral direction is greater than the width of the connection portion on the front side in the lateral direction.

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