connector

Abstract

The application discloses a connector, which comprises a rubber core, a circuit board and a power terminal. The circuit board is provided with a first matching hole. One end of the power terminal is positioned at the rubber core, and the other end of the power terminal is inserted into the first matching hole. The end of the power terminal which is out of the first matching hole is used for electrically connecting with a power wire. The connector can transmit large current.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and more particularly to a connector. Background Technology

[0002] Connectors are widely used in various fields, including automobiles, communications, computers, consumer electronics, industry, and transportation. Applicable vehicle types include new energy vehicles, electric bicycles, electric motorcycles, and electric scooters. Connector plugs and sockets, as key components, bridge communication between circuits, allowing current to flow and enabling the circuits to perform their intended functions. However, existing connectors have relatively low current transmission capacity. Utility Model Content

[0003] The purpose of this application is to provide a connector.

[0004] This application provides a connector, which includes a core, a circuit board and a power terminal. The circuit board has a first mating hole. One end of the power terminal is positioned in the core, and the other end of the power terminal is inserted through the first mating hole. The end of the power terminal that extends out of the first mating hole is used for electrical connection with a power wire.

[0005] In this application, the power terminals are directly electrically connected to the power wires. Compared with the scheme where the power terminals are indirectly electrically connected to the power wires through a circuit board, the power terminals and power wires in this application can transmit a larger current. Attached Figure Description

[0006] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0007] Figure 1 This is a three-dimensional structural diagram of the connector provided in the embodiment of this application.

[0008] Figure 2 yes Figure 1 An exploded view of the three-dimensional structure of the connector.

[0009] Figure 3 yes Figure 1 A three-dimensional structural diagram of the connector (excluding the cover and pivot) from another perspective.

[0010] Figure 4 yes Figure 2 A three-dimensional structural diagram of the power terminals of the connector.

[0011] Figure 5 yes Figure 2 A three-dimensional structural diagram of the signal terminals of the connector.

[0012] Figure 6 yes Figure 1 A three-dimensional structural diagram of the connector (excluding the overlay, power wires, and signal wires) from another perspective.

[0013] Figure 7 yes Figure 2 A three-dimensional structural schematic diagram of another embodiment of the power terminal of the connector.

[0014] Figure 8 yes Figure 1 Enlarged view of point A on the connector.

[0015] Figure 9 yes Figure 1 A three-dimensional structural schematic diagram of another embodiment of the connector. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] It should be noted that, in this document, the reference to "embodiment" or "implementation" means that a specific feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0018] The terms "first" and "second" appearing in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. It should be noted that, unless otherwise explicitly stated and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] For ease of understanding, such as Figure 1 The length direction of connector 100 is defined as the X-axis direction, the width direction of connector 100 is defined as the Y-axis direction, and the insertion direction of connector 100 is defined as the Z-axis direction. The X-axis direction, Y-axis direction, and Z-axis direction are perpendicular to each other.

[0020] Please refer to Figure 1 and Figure 2 The connector 100 provided in this embodiment includes a core 10, a circuit board 20, a power terminal 30, and a power wire 40a. The circuit board 20 has a first mating hole 21, which passes through the circuit board 20 along the Z-axis direction (the thickness direction of the circuit board 20). One end of the power terminal 30 is positioned on the core 10, and the other end of the power terminal 30 is inserted into the first mating hole 21. The end of the power terminal 30 that extends out of the first mating hole 21 is used for electrical connection with the power wire 40a.

[0021] In this embodiment, the power terminal 30 is not electrically connected to the circuit board 20, but is directly electrically connected to the power wire 40a. Compared with the scheme where the power terminal 30 is indirectly electrically connected to the power wire 40a through the circuit board 20, a larger current can be transmitted between the power terminal 30 and the power wire 40a in this embodiment. Furthermore, the power terminal 30 passes through the first mating hole 21 of the circuit board 20, resulting in a compact structure that is beneficial for miniaturization design.

[0022] The connector 100 of this embodiment can be widely used in various fields such as automobiles, communications, computers, consumer electronics, industry, and transportation. For example, it can be used as a key component in batteries of new energy vehicles, electric bicycles, electric motorcycles, electric scooters, and power tools. Its applications are very wide and are not limited to this example.

[0023] In this embodiment, the power terminal 30 is made of a high-conductivity material. For example, the power terminal 30 is made of C18160 chromium-zirconium-copper alloy. In other embodiments, the power terminal 30 can also be made of C7025 copper-nickel-silicon-magnesium alloy, CuCrZr alloy, CuNiSi alloy, copper, tellurium copper, tin bronze, beryllium bronze, etc. Using a high-conductivity material for the power terminal 30 helps to improve the current-carrying capacity of the connector 100 to handle higher rated currents.

[0024] Optionally, the connector 100 further includes a signal terminal 50, a signal wire 40b, and an adhesive coating 60. The circuit board 20 also has a second mating hole 22, which extends through the circuit board 20 along the Z-axis (thickness direction of the circuit board 20), and is spaced apart from the first mating hole 21. One end of the signal terminal 50 is positioned on the adhesive core 10, and the other end of the signal terminal 50 is inserted into the second mating hole 22, directly electrically connected to the circuit board 20. One end of the signal wire 40b is also directly electrically connected to the circuit board 20. In essence, the signal terminal 50 is indirectly electrically connected to the signal wire 40b through the circuit board 20. By providing the signal terminal 50 and the signal wire 40b, the connector 100 can transmit both current and signals, making its functionality more comprehensive. The adhesive 60 wraps around the circuit board 20, the power terminal 30 is inserted through one end of the circuit board 20, the signal terminal 50 is inserted through one end of the circuit board 20, the power wire 40a is electrically connected to one end of the power terminal 30, the signal wire 40b is electrically connected to one end of the circuit board 20, and the adhesive core 10 faces the circuit board 20, so that the charged components of the connector 100 are insulated from the outside.

[0025] For example, please refer to Figure 2 and Figure 3 In this embodiment, the core 10 includes a connecting portion 11 and a plug-in sleeve 12 that are fixedly connected. A plug-in connector 121 is provided on the bottom surface of the inner cavity of the plug-in sleeve 12. The core 10 has mutually spaced first mounting holes 111 and second mounting holes 112. Both the first mounting holes 111 and the second mounting holes 112 pass through the surface of the connecting portion 11 away from the plug-in sleeve 12 and the surface of the plug-in connector 121 away from the connecting portion 11 along the Z-axis direction. In this embodiment, there are two first mounting holes 111, spaced apart along the Y-axis. In other embodiments, the number of first mounting holes 111 can be one, three, or more. There are four second mounting holes 112, arranged in a rectangular pattern around the Z-axis. In other embodiments, the number of second mounting holes 112 can be one, two, three, five, or more.

[0026] The number of first mating holes 21 is two, and the two first mating holes 21 are spaced apart along the Y-axis. In other embodiments, the number of first mating holes 21 may also be one, three or more. The number of second mating holes 22 is four, and the four second mating holes 22 are arranged in a rectangle around the Z-axis. In other embodiments, the number of second mating holes 22 may be one, two, three, five or more.

[0027] Please refer to Figure 4The power terminal 30 includes a connector 31, a positioning part 32, and a first plug-in end 33 connected in sequence. In this embodiment, the connector 31, the positioning part 32, and the first plug-in end 33 are an integral structure. Understandably, one end of the power terminal 30 is provided with a connector 31. The connector 31 is provided with a connecting groove 311 for accommodating the power wire 40a.

[0028] Specifically, the connector 31 includes a support portion 312 and a fixing portion 313. The support portion 312 is located at one end of the power terminal 30 and is fixedly connected to the positioning portion 32. One end of the fixing portion 313 is connected to the surface of the support portion 312 opposite to the positioning portion 32. The fixing portion 313 and the support portion 312 form a connecting groove 311. In this embodiment, there are two fixing portions 313, which are arranged radially spaced along the power terminal 30. The two fixing portions 313 and the support portion 312 form the connecting groove 311. Understandably, the connecting groove 311 is a U-shaped groove. The first insertion end 33 is a rotating spring structure or a torsion spring structure.

[0029] Please refer to Figure 5 The signal terminal 50 includes an insertion part 51, a mating part 52, and a second plug-in end 53 that are fixedly connected in sequence. Both the insertion part 51 and the mating part 52 are cylindrical, and the outer diameter of the mating part 52 is larger than the outer diameter of the insertion part 51. The second plug-in end 53 is a rotating spring structure or a torsion spring structure.

[0030] Please refer to Figure 2 , Figure 3 and Figure 6 In this embodiment, the circuit board 20 is stacked on the core 10. Specifically, the circuit board 20 is stacked on the surface of the connecting portion 11 facing away from the plug-in cylinder 12. Two first mating holes 21 are directly opposite to two first mounting holes 111, and four second mating holes 22 are directly opposite to four second mounting holes 112. The circuit board 20 being stacked on the core 10 helps save space. In other embodiments, the circuit board 20 may also be spaced apart from the core 10 along the Z-axis.

[0031] The number of power terminals 30 is two. In other embodiments, the number of power terminals 30 can be one, three, or more. The positioning portions 32 of the two power terminals 30 are respectively inserted into the two first mating holes 21 near the connector 31. The inner diameter of the first mating hole 21 is larger than the outer diameter of the positioning portion 32. That is, the inner circumferential surface of the first mating hole 21 is clearance-fitted with the outer circumferential surface of the positioning portion 32, avoiding short circuits caused by contact between the power terminals 30 and the circuit board 20. The positioning portions 32 of the two power terminals 30 are respectively positioned in the two first mounting holes 111 near the first insertion end 33. The first insertion ends 33 of the two power terminals 30 are respectively positioned in the two first mounting holes 111. It can be understood that one end of the power terminal 30 and one end of the signal terminal 50 are both located in the inner cavity of the plug tube 12. The ends of the power terminal 30 and the signal terminal 50 located in the inner cavity of the plug tube 12 are enclosed by the plug connector 121. In other embodiments, the connector 121 may be omitted, with one end of the power terminal 30 and one end of the signal terminal 50 exposed inside the connector sleeve 12. The connectors 31 of the two power terminals 30 are both located on the side of the circuit board 20 away from the core 10. The support portion 312 and the fixing portion 313 of the connector 31 are both located on the side of the circuit board 20 away from the core 10, with the support portion 312 closer to the circuit board 20 than the fixing portion 313. Understandably, one end of the fixing portion 313 is connected to the surface of the support portion 312 away from the circuit board 20.

[0032] One end of the power cord 40a is accommodated in the connecting groove 311, and the other end of the power cord 40a is connected to two fixing parts 313 and a supporting part 312 respectively to achieve an electrical connection between the power cord 40a and the power terminal 30. Exemplarily, one end of the power cord 40a is welded to the two fixing parts 313 and the supporting part 312 respectively. In other embodiments, one end of the power cord 40a can also be fixedly connected to the two fixing parts 313 and the supporting part 312 respectively by means including but not limited to adhesive bonding. In this embodiment, there are four power cords 40a, two of which are connected to the connector 31 of one power terminal 30, and the other two are connected to the connector 31 of the other power terminal 30. By providing the connecting groove 311 in the connector 31, the connecting groove 311 can accommodate the power cord 40a, which is beneficial for the connection between the power terminal 30 and the power cord 40a, making the connection between the power cord 40a and the power terminal 30 more stable, thereby improving the stability of the electrical connection between the power cord 40a and the power terminal 30. Furthermore, the connecting groove 311 can accommodate solder marks generated during soldering, preventing excessive solder marks from protruding beyond the outer side of the connecting groove 311 and affecting the layout of other components on the circuit board 20.

[0033] By configuring the connector 31 as a support part 312 and two fixing parts 313, when one end of the power cord 40a is positioned in the connecting groove 311, the two fixing parts 313 respectively clamp the power cord 40a, making the connection between the power cord 40a and the power terminal 30 more stable.

[0034] Please refer to Figure 7 In other embodiments, the number of fixing parts 313 can also be one, with one fixing part 313 and the support part 312 arranged in an L-shape, and one fixing part 313 and the support part 312 forming a connecting groove 311. This structure is simple, the space of the connecting groove 311 is larger, and when one end of the power cord 40a is positioned in the connecting groove 311 and welded to the fixing part 313 and the support part 312, the welding gun is easier to weld, which is beneficial to improving assembly efficiency.

[0035] Please refer to Figure 6 In some embodiments, one of the adhesive core 10 and the circuit board 20 is provided with a foolproof protrusion 113, and the other is provided with a foolproof groove 23, with the foolproof protrusion 113 positioned within the foolproof groove 23. In this embodiment, the foolproof protrusion 113 is disposed on the connecting portion 11 of the adhesive core 10 facing the surface of the circuit board 20, and the foolproof groove 23 is disposed on the circuit board 20. In other embodiments, the foolproof protrusion 113 may be disposed on the surface of the circuit board 20 facing the adhesive core 10, and the foolproof groove 23 may be disposed on the surface of the adhesive core 10 facing the circuit board 20. By providing the foolproof protrusion 113 and the foolproof groove 23 to cooperate with each other, it is beneficial to avoid misalignment during the assembly of the circuit board 20 and the adhesive core 10.

[0036] In some embodiments, please refer to Figure 6 and Figure 8 The connector 100 also includes a cover 70, a first magnetic attractor 71, a second magnetic attractor 72, and a rotating shaft 80. The cover 70 is rotatably connected to the core 10. Both the first magnetic attractor 71 and the second magnetic attractor 72 are cylindrical. In other embodiments, the first magnetic attractor 71 and the second magnetic attractor 72 may also be strip-shaped or have other irregular structures. The first magnetic attractor 71 is disposed on the cover 70, and the second magnetic attractor 72 is disposed on the core 10. The cover 70 has a closed state and an open state. When the cover 70 is in the closed state, it seals over the inner cavity of the insertion cylinder 12, and the first magnetic attractor 71 and the second magnetic attractor 72 attract each other. When the cover 70 is in the open state, the angle between the cover 70 and the core 10 is greater than 90 degrees.

[0037] Specifically, the cover 70 is provided with two first rotating parts 73, which are spaced apart along the X-axis. The surface of the cover 70 along the thickness direction is provided with a plurality of first fixing holes 74, which are arranged in a circle around the X-axis.

[0038] The core 10 also includes a mating cylinder 13 and a connecting plate 14. The mating cylinder 13 is fixedly connected to the outer circumferential surface of the insertion cylinder 12, and the mating cylinder 13 surrounds the insertion cylinder 12 in a circumferential manner. It can be understood that the end of the insertion cylinder 12 away from the connecting part 11 is located in the inner cavity of the mating cylinder 13. The connecting plate 14 is fixedly connected to the end of the outer circumferential surface of the mating cylinder 13 away from the connecting part 11, and the connecting plate 14 surrounds the mating cylinder 13 in a circumferential manner.

[0039] The connecting plate 14 has multiple second fixing holes 141 and a rotating groove 142 on its surface opposite to the connecting part 11. The multiple second fixing holes 141 surround the insertion cylinder 12 in a circle. The length direction of the rotating groove 142 is parallel to the X-axis direction, and the rotating groove 142 and the insertion cylinder 12 are spaced apart along the Y-axis direction. The bottom surface of the rotating groove 142 has two second rotating parts 1421, which are spaced apart along the length direction of the rotating groove 142.

[0040] In this embodiment, there are multiple first magnetic suction components 71 and multiple second magnetic suction components 72. Multiple first magnetic suction components 71 are respectively installed in multiple first fixing holes 74, and multiple second magnetic suction components 72 are respectively installed in multiple second fixing holes 141, through methods including but not limited to bonding or integral injection molding. The cover 70 is connected to the adhesive core 10 via a rotating shaft 80. The connecting plate 14 between the cover 70 and the adhesive core 10 is rotatably connected via the rotating shaft 80. Specifically, two first rotating parts 73 are located between two second rotating parts 1421, and the two first rotating parts 73 are respectively close to the two second rotating parts 1421. The rotating shaft 80 passes through the two first rotating parts 73 and the two second rotating parts 1421, and the rotating shaft 80 is located within the rotating groove 142.

[0041] The cover 70 can rotate relative to the core 10 around the rotation axis 80, allowing it to switch between a closed and open state. When closed, the cover 70 covers the inner cavity of the mating cylinder 13 and the inner cavity of the insertion cylinder 12, abutting against the insertion cylinder 12 to seal its inner cavity. Simultaneously, the first magnetic attractor 71 and the second magnetic attractor 72 face each other, attracting each other and creating an attractive force between the cover 70 and the core 10. This results in a tighter seal between the cover 70 and the core 10, improving the sealing performance of the connector 100.

[0042] Optionally, the connector 100 also includes a torsion spring 81, which is sleeved on the rotating shaft 80 and located between the two first rotating parts 73. When the cover 70 is rotated to the closed state, the torsion spring 81 provides an attractive force between the cover 70 and the core 10, making the attractive force between the cover 70 and the core 10 greater and further improving the sealing performance of the connector 100.

[0043] In some embodiments, the connector 100 further includes a seal 90 located between the cover 70 and the core 10, with the seal 90 surrounding the circumference of the insert sleeve 12. When the cover 70 is in the closed state, the cover 70 and the core 10 sealably clamp the seal 90. By providing the seal 90, the sealing performance of the connector 100 is further improved.

[0044] For example, one end of the sealing element 90 is sealed to the cover 70, and the other end of the sealing element 90 is sealed to the insert sleeve 12. One end of the sealing element 90 is fixedly connected to the cover 70 by means including but not limited to bonding or integral molding. When the cover 70 is in the closed state, the other end of the sealing element 90 extends into the inner cavity of the mating sleeve 13 and is fitted onto the insert sleeve 12. The sealing element 90 covers the outer peripheral surface of the insert sleeve 12, and the opening of the inner cavity of the insert sleeve 12 is covered by the sealing element 90, resulting in better sealing performance. In other embodiments, one end of the sealing element 90 may also be fixedly connected to the outer peripheral surface of the insert sleeve 12, and when the cover 70 is in the closed state, the cover 70 sealably abuts against the end of the sealing element 90 away from the insert sleeve 12.

[0045] Please refer to Figure 9 In some embodiments, the core 10 is provided with a limiting protrusion 143, which is disposed on the surface of the connecting plate 14 opposite to the connecting portion 11. The limiting protrusion 143 and the insertion tube 12 are spaced apart along the Y-axis direction (perpendicular to the direction of the rotation axis 80 between the cover 70 and the core 10), and the rotation axis 80 is located between the limiting protrusion 143 and the insertion tube 12. When the cover 70 switches from the closed state to the open state, the cover 70 can rotate relative to the core 10 along the rotation axis 80 until it abuts against the limiting protrusion 143. Specifically, the surface of the cover 70 opposite to the insertion tube 12 abuts against the limiting protrusion 143. This prevents the cover 70 from rotating too much and affecting its lifespan.

[0046] The embodiments of this application have been described in detail above. Specific examples have been used in this article to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application.

Claims

1. A connector, characterized in that, include: core; The circuit board is provided with a first mating hole; as well as A power terminal, one end of which is positioned on the rubber core, and the other end of which is inserted into the first mating hole. The end of the power terminal that extends out of the first mating hole is used for electrical connection with a power supply wire.

2. The connector according to claim 1, characterized in that, One end of the power terminal is provided with a connector, which is located on the side of the circuit board away from the core; the connector is provided with a connection groove for accommodating the power wire.

3. The connector according to claim 2, characterized in that, The connector includes a support portion and a fixing portion. The support portion is located at one end of the power terminal, and one end of the fixing portion is connected to the surface of the support portion away from the circuit board. The fixing portion and the support portion form the connecting groove.

4. The connector according to claim 3, characterized in that, The number of fixing parts is two, and the two fixing parts are arranged radially spaced along the power terminal. The two fixing parts and the support part form the connecting groove.

5. The connector according to claim 2, characterized in that, The power terminal also includes a positioning part, which is connected to the connector and is inserted into the first mating hole, wherein the inner diameter of the first mating hole is larger than the outer diameter of the positioning part.

6. The connector according to any one of claims 1 to 5, characterized in that, The power terminals are made of a high-conductivity material.

7. The connector according to any one of claims 1 to 5, characterized in that, The circuit board is stacked on the adhesive core; one of the adhesive core and the circuit board is provided with a foolproof protrusion, and the other is provided with a foolproof groove, and the foolproof protrusion is positioned in the foolproof groove.

8. The connector according to any one of claims 1 to 5, characterized in that, The core includes a plug-in sleeve, and the power terminal is located in the inner cavity of the plug-in sleeve; the connector also includes a cover, a first magnetic attractor and a second magnetic attractor, the cover being rotatably connected to the core; the first magnetic attractor is disposed on the cover, and the second magnetic attractor is disposed on the core; The cover seals over the inner cavity of the plug tube, and the first magnetic element and the second magnetic element attract each other.

9. The connector according to claim 8, characterized in that, The connector further includes a seal that surrounds the circumference of the plug cylinder; one end of the seal is sealed to the cover, and the other end of the seal is sealed to the plug cylinder.

10. The connector according to claim 8, characterized in that, The cover is connected to the rubber core via a rotating shaft. The rubber core is provided with a limiting protrusion. The rotating shaft is located between the limiting protrusion and the insertion cylinder. The cover can rotate relative to the rubber core along the rotating shaft until it abuts against the limiting protrusion.

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