CN211858943U - Connector and terminal equipment - Google Patents
Connector and terminal equipment Download PDFInfo
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- CN211858943U CN211858943U CN201921553765.2U CN201921553765U CN211858943U CN 211858943 U CN211858943 U CN 211858943U CN 201921553765 U CN201921553765 U CN 201921553765U CN 211858943 U CN211858943 U CN 211858943U
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Abstract
The application provides a connector and terminal equipment, and the connector is formed by connecting two parts, namely a female end and a male end. The female terminal is provided with a first positive terminal and a first negative terminal which are symmetrically arranged, and the male terminal is provided with a second positive terminal and a second negative terminal which are symmetrically arranged. When the female terminal is connected with the male terminal, specifically, the second positive terminal is connected with the first positive terminal in a matching manner to form a positive terminal of the connector, and the second negative terminal is connected with the first negative terminal in a matching manner to form a negative terminal of the connector. The positive terminal of the connector is of an integral structure and the negative terminal of the connector is of an integral structure, so that only one current flowing channel is formed between the positive terminal of the connector and the negative terminal of the connector. The conductive path area of the current of the connector is larger on the basis that the overall size of the connector is effectively controlled, so that the overall impedance of the connector is smaller, and the through-current capacity of the connector is improved.
Description
Technical Field
The application relates to the technical field of terminal equipment, in particular to a connector and terminal equipment.
Background
At present, with the development of a fast charging (quick charging) technology, mobile phone users have made higher demands on the cruising ability of mobile phones and the shortening of the charging time of mobile phone batteries.
In order to realize quick charging of the mobile phone battery, devices on the quick charging path are required, for example: the battery, the Flexible Printed Circuit (FPC), the battery connector, the Printed Circuit Board (PCB), and the chip, etc. can all carry the transmission of a large current. In order to improve the quick charging capability of the battery connector, it is necessary to reduce the transmission impedance of the battery connector. Under the condition that the terminal copper material of current battery connector has used the highest electrically conductive characteristic material at present, increase the area of contact between the terminal is the design scheme of common resistance that reduces, but, can lead to the area size grow of battery connector through the area of contact between the increase terminal to make it great in the inside shared space of cell-phone, and this again with reduce the inside device size of cell-phone, with the development trend of the setting that increases cell-phone function module left the same place.
Therefore, how to increase the current flow capacity of the battery connector while reducing the size of the battery connector becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In a first aspect of the present application, a connector is provided, which is formed by connecting two parts, namely a female end and a male end. The female terminal is provided with a first positive terminal and a first negative terminal which are symmetrically arranged, and the male terminal is provided with a second positive terminal and a second negative terminal which are symmetrically arranged. The first positive terminal includes a plurality of power positive terminals, the second positive terminal includes a plurality of power positive terminals, the first negative terminal includes a plurality of power negative terminals, and the second negative terminal includes a plurality of power negative terminals. When the female terminal is connected to the male terminal, specifically, the plurality of positive power terminals of the second positive terminal are connected to the plurality of positive power terminals of the first positive terminal in a matching manner to form the positive terminal of the connector, and the plurality of negative power terminals of the second negative terminal are connected to the plurality of negative power terminals of the first negative terminal in a matching manner to form the negative terminal of the connector. The positive terminal of the connector is of an integral structure and the negative terminal of the connector is of an integral structure, so that only one current flowing channel is formed between the positive terminal of the connector and the negative terminal of the connector. The conductive path area of the current of the connector is larger on the basis that the overall size of the connector is effectively controlled, so that the overall impedance of the connector is smaller, and the through-current capacity of the connector is improved.
When the female terminal is specifically arranged, since the first positive terminal and the first negative terminal of the female terminal are symmetrically arranged, a specific structure of the female terminal can be described by taking the first positive terminal as an example. The first positive terminal is provided with a first power positive terminal, a second power positive terminal and a third power positive terminal, and a first terminal connecting part is arranged on one side of the first power positive terminal facing the first negative terminal; the second power positive terminal and the third power positive terminal are respectively arranged at two sides of the first terminal connecting part, the second power positive terminal is provided with a second terminal connecting part, the third power positive terminal is provided with a third terminal connecting part, and the second terminal connecting part and the third terminal connecting part are oppositely arranged. By arranging the three power supply positive terminals of the first positive terminal in the above manner, the structure of the first positive terminal can be compact, and the overall size of the female terminal can be reduced.
In one possible implementation of the present application, the first terminal connection part may be provided with a first groove, the second terminal connection part may be provided with a second groove, and the third terminal connection part may be provided with a third groove.
In addition, at least one first pin is arranged on the periphery side of the positive terminal of the first power supply; and/or at least one second pin is arranged on the periphery side of the positive terminal of the second power supply; and/or at least one third pin is arranged on the peripheral side of the positive terminal of the third power supply. It will be appreciated that when it is desired to secure the female terminal to the printed circuit board, this may be accomplished by a first pin on the peripheral side of the positive terminal of the first power supply, and/or a second pin on the peripheral side of the positive terminal of the second power supply, and/or a third pin on the peripheral side of the positive terminal of the third power supply.
In one possible implementation manner of the present application, at least one first communication terminal is further disposed between the first positive terminal and the first negative terminal of the female terminal, and when the first communication terminals are multiple, the multiple first communication terminals may be divided into two groups, one group is disposed on a side of the second power positive terminal close to the first negative terminal, and the other group is disposed on a side of the third power positive terminal close to the first negative terminal.
In addition to the above structure, the female terminal may further include a first limit structure, and the first limit structure may be disposed on the periphery side of the first power supply positive terminal; and/or the first limiting structure is arranged on the periphery side of the positive terminal of the second power supply; and/or the first limiting structure is arranged on the periphery side of the positive terminal of the third power supply; and/or the first limiting structure is also arranged on the periphery side of the first communication terminal. Thereby, relative movement between two adjacent terminals can be avoided, and the structural stability of the female terminal is improved.
When the male terminal is specifically arranged, since the second positive terminal and the second negative terminal of the male terminal are symmetrically arranged, the specific structure of the male terminal can be described by taking the second positive terminal as an example. The second positive terminal is provided with a fourth power positive terminal and a fifth power positive terminal, the fourth power positive terminal comprises a fourth terminal connecting part and a fifth terminal connecting part which are connected, and the fifth power positive terminal comprises a sixth terminal connecting part and a seventh terminal connecting part which are connected; the fourth terminal connecting part and the sixth terminal connecting part are arranged close to each other, and the fifth terminal connecting part and the seventh terminal connecting part are arranged oppositely. By arranging the two power supply positive terminals of the second positive terminal in the above mode, the structure of the second positive terminal can be compact, and the overall size of the male terminal can be reduced.
In one possible implementation manner of the present application, the fourth terminal connection portion is set as a first protrusion, the sixth terminal connection portion is set as a second protrusion, the fifth terminal connection portion is set as a third protrusion, and the seventh terminal connection portion is set as a fourth protrusion.
In addition, at least one fourth pin is arranged on the periphery side of the positive terminal of the fourth power supply; and/or at least one fifth pin is arranged on the periphery side of the positive terminal of the fifth power supply. It is understood that when the male terminal needs to be fixed to the flexible circuit board, the male terminal can be fixed to the flexible circuit board through the fourth pin on the peripheral side of the fourth power source positive terminal and/or the fifth pin on the peripheral side of the fifth power source positive terminal.
In one possible implementation manner of the present application, at least one second communication terminal is further disposed between the second positive terminal and the second negative terminal, and when the second communication terminals are multiple, the multiple second communication terminals are divided into two groups, one group is disposed on one side of the fifth terminal connection portion close to the second negative terminal, and the other group is disposed on one side of the seventh terminal connection portion close to the second negative terminal.
In addition to the above structure, the male end may further include a second limiting structure, and the second limiting structure may be disposed on the periphery side of the fourth power supply positive terminal; and/or the second limiting structure is arranged on the periphery side of the positive terminal of the fifth power supply; and/or the second limiting structure is also arranged on the periphery side of the second communication terminal. Thereby, relative movement between two adjacent terminals can be avoided, and the structural stability of the male end is improved.
When the male end and the female end are connected, the fourth terminal connecting part and the sixth terminal connecting part are both connected with the first terminal connecting part, the fifth terminal connecting part is connected with the second terminal connecting part, and the seventh terminal connecting part is connected with the third terminal connecting part, so that the positive end of the connector in an integral structure is formed. And when the first terminal connecting part is provided with a first groove, the fourth terminal connecting part is set as a first bulge, and the sixth terminal connecting part is set as a second bulge, the first bulge and the second bulge are both accommodated in the first groove. At this time, a first terminal contact and a second terminal contact may be further disposed in the first groove, the first terminal contact abuts against the first protrusion, and the second terminal contact abuts against the second protrusion, so as to improve contact stability between the terminal connection portions.
In addition, when the second terminal connecting part is provided with a second groove and the fifth terminal connecting part is provided with a third bulge, the third bulge is accommodated in the second groove; correspondingly, the third terminal connecting part is provided with a third groove, and when the seventh terminal connecting part is set as a fourth bulge, the fourth bulge is accommodated in the third groove.
In one possible implementation manner of the present application, the first communication terminal of the female terminal may be connected to the second communication terminal of the male terminal in a one-to-one correspondence manner, so as to implement communication connection between the female terminal and the male terminal.
In a second aspect of the present application, a terminal device is further provided, where a device on a charging path of the terminal device mainly includes a first printed circuit board, a first flexible circuit board, a board-to-board connector, a second printed circuit board, and a connector of the first aspect, which are connected in sequence. In addition, the terminal equipment further comprises a charging interface, the charging interface is arranged on the first printed circuit board, the female end of the connector is fixed on the second printed circuit board, and the male end of the connector is connected with the battery of the terminal equipment through the second flexible circuit board.
When the terminal equipment of the embodiment of the application is charged, firstly, current enters the terminal equipment through a charging interface of the terminal equipment and sequentially passes through the first printed circuit board and the first flexible circuit board to reach the power supply anode of the board-to-board connector; then, the current enters the power supply positive electrode of the battery connector through the second printed circuit board; then, the current enters the positive pole of the battery through the power supply positive pole of the battery connector; then, the current flows out of the negative electrode of the battery, passes through the second flexible circuit board and enters the negative electrode of the battery connector; and finally, the current sequentially passes through the second printed circuit board, the power supply cathode of the board-to-board connector, the first flexible circuit board and the first printed circuit board and returns to the charging interface of the terminal equipment, so that a charging loop of the battery of the terminal equipment is formed. Because the area of the conducting path of the current of the connector in the first aspect is large, the overall impedance of the connector is small, the improvement of the through-current capacity of the connector is facilitated, and the terminal device can be rapidly charged.
Drawings
Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 2 is a schematic view of a layout structure of each terminal of the female terminal of the connector according to the embodiment of the present application;
fig. 3 is a plan view of a layout of terminals of a female terminal of the connector according to the embodiment of the present application;
FIG. 4 is a schematic view of a female end of a connector according to an embodiment of the present application;
fig. 5 is a schematic layout structure of each terminal of the male end of the connector according to the embodiment of the present application;
fig. 6 is a plan view of the layout of the terminals of the male end of the connector according to the embodiment of the present application;
FIG. 7 is a schematic view of a male end of a connector according to an embodiment of the present application;
FIG. 8 is a schematic view of the male and female ends of the connector of the present application in assembled relationship;
FIG. 9 is a schematic view of a combination structure of a male end and a female end of a connector according to an embodiment of the present application;
FIG. 10 is a top view of the combination of the male and female ends of the connector of the present application;
FIG. 11 is a top view of the female end of the connector of an embodiment of the present application;
FIG. 12 is a top view of the male end of a connector according to an embodiment of the present application;
fig. 13 is a schematic view of the layout of the terminals of the female end of the prior art connector;
FIG. 14 is a schematic view of the female end of a prior art connector;
FIG. 15 is a schematic view of the layout of the male terminals of the prior art connector;
FIG. 16 is a schematic view of a prior art male end of a connector;
FIG. 17 is a top view of the male and female ends of the prior art connector in combination;
FIG. 18 is a top view of the female end of the prior art connector;
fig. 19 is a top view of the male end of a prior art connector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
At present, a battery in a terminal device is usually a rechargeable battery, and in order to charge the battery of the terminal device, a charging path and devices on the charging path of the terminal device need to be understood first. The terminal device may be, but is not limited to, a mobile phone, a notebook computer, a Personal Digital Assistant (PDA), etc., and the charging process is similar no matter what the terminal device is, and the charging path will be described below by taking the terminal device as the mobile phone as an example. Referring to fig. 1, the device on the charging path of the terminal device shown in fig. 1 mainly includes a first printed circuit board 1, a first flexible circuit board 2, a Board To Board (BTB) connector, a second printed circuit board 4, a battery connector 5, a second flexible circuit board 6, and a battery 7, which are connected in this order. Wherein, the charging interface 8(TYPE C or MICRO-USB interface) of the terminal device is disposed on the first printed circuit board 1, the BTB connector 3 is electrically connected with the battery connector 5 through the second printed circuit board 4, and the second printed circuit board 4 is a main board of the terminal device under normal conditions.
When the battery connector 5 is specifically arranged, the battery connector 5 includes a female terminal fixed on the second printed circuit board 4, and a male terminal 52 fixedly connected with the second flexible circuit board 6, a power source positive terminal of the male terminal 52 is correspondingly connected with a power source positive terminal of the female terminal 51 to form a power source positive electrode of the battery connector 5, and a power source negative terminal of the male terminal 52 is correspondingly connected with a power source negative terminal of the female terminal 51 to form a power source negative electrode of the battery connector 5. In addition, the BTB connector 3 may include a female terminal fixed to the second printed circuit board 4, and a male terminal fixed to the first flexible circuit board 2, wherein a positive power terminal of the male terminal is connected to a positive power terminal of the female terminal to form a positive power terminal of the BTB connector 3, and a negative power terminal of the male terminal is connected to a negative power terminal of the female terminal to form a negative power terminal of the BTB connector 3.
When the charger is used for charging the terminal equipment, the charging connector 10 at the tail end of the charging wire 9 of the charger is connected with the charging interface 8 of the terminal equipment, and the power adapter 11 of the charger is inserted into an external power supply. Thus, the charging path of the terminal device may be: firstly, current enters the terminal equipment through a charging interface 8 of the terminal equipment and sequentially passes through the first printed circuit board 1 and the first flexible circuit board 2 to reach the power supply anode of the BTB connector 3; then, the current enters the power supply positive electrode of the battery connector 5 through the second printed circuit board 4; then, the current enters the positive electrode of the battery through the power supply positive electrode of the battery connector 5; then, the current flows out from the negative electrode of the battery 7 through the second flexible circuit board 6 into the negative electrode of the battery connector 5; finally, the current flows back to the charging interface 8 of the terminal device through the second printed circuit board 4, the power supply cathode of the BTB connector 3, the first flexible circuit board 2, and the first printed circuit board 1 in sequence, so as to form a charging loop for the battery 7 of the terminal device.
In order to meet the development requirements of end users for a fast charging (hereinafter referred to as fast charging) technology, for a connection device such as the battery connector 5, it is necessary to reduce the transmission impedance of the battery connector 5 in order to improve the fast charging capability of the connection device. In the case that the terminal copper material of the existing battery connector 5 has used the material with the highest conductive property at present, it is a common design solution to increase the contact area between the male terminal 52 and the female terminal 51 thereof to reduce the impedance. However, increasing the contact area between the male terminals 52 and the female terminals 51 results in an increase in the area of the battery connector 5, and thus increases the area of the second printed circuit board 4 occupied by the battery connector, which is contrary to the trend of decreasing the size of the internal devices of the terminal device to increase the arrangement of the functional modules of the terminal device. In order to solve the above problem, embodiments of the present application provide a connector to increase a current flow capacity of the connector on the basis of reducing the size of the connector, so as to meet a fast charging requirement for a battery of a terminal device. For convenience of explanation, in each of the following embodiments of the present application, a specific arrangement form of the connector is described by taking the connector as a battery connector, and for a connection device having a similar structure to the battery connector, such as a BTB connector, the specific arrangement form may refer to the battery connector.
Referring to fig. 1, the present embodiment provides a connector including a female terminal 51 and a male terminal 52 connected, wherein the female terminal 51 includes a first power positive terminal and a first power negative terminal; correspondingly, the male terminal 52 includes a positive second power terminal and a negative second power terminal, the positive first power terminal is correspondingly coupled to the positive second power terminal, and the negative first power terminal is correspondingly coupled to the negative second power terminal.
Referring to fig. 2, when the female terminal of the connector is specifically provided, the positive terminal 511 and the negative terminal 512 of the female terminal are symmetrically arranged, and since the positive terminal 511 and the negative terminal 512 are arranged in the same manner, a specific structure of the female terminal will be described in detail below by taking the positive terminal 511 as an example. The positive terminal 511 of the female terminal has three first power positive terminals, namely a first power positive terminal 5111A, a first power positive terminal 5111B, and a first power positive terminal 5111C. As can be seen from fig. 2, the first power source positive terminal 5111A, the first power source positive terminal 5111B, and the first power source positive terminal 5111C are not in contact with each other, and are three independent terminals. In addition, the first power positive terminal 5111A, the first power positive terminal 5111B, and the first power positive terminal 5111C may be, but not limited to, metal terminals, and it is understood that the three terminals may be made of other materials with better current capacity.
When the first power positive terminal 5111A is specifically provided, at least one pin 5112A is disposed on the peripheral side of the first power positive terminal 5111A, wherein when the female terminal is fixed to the motherboard of the terminal device, the at least one pin 5112A may be connected to the motherboard of the terminal device. In addition, the first power positive terminal 5111A further includes a terminal connection portion 5113A, and when the terminal connection portion 5113A is specifically provided, the terminal connection portion 5113A is disposed on a side of the first power positive terminal 5111A close to the negative electrode end 512, and the terminal connection portion 5113A may be provided with a groove. In some embodiments of the present application, terminal contacts 5114 may also be disposed within the grooves to facilitate improved reliability of contact between the terminals.
When the first power positive terminal 5111B is specifically provided, at least one pin 5112B is disposed on the peripheral side of the first power positive terminal 5111B, wherein when the female terminal is fixed to the motherboard of the terminal device, the at least one pin 5112B may be connected to the motherboard of the terminal device. In addition, the first power positive terminal 5112B further includes a terminal connection portion 5113B, and when the terminal connection portion 5113B is specifically provided, the terminal connection portion 5113B may also be provided with a groove.
Similarly, when the first power positive terminal 5111C is specifically provided, at least one pin 5112C is provided on the peripheral side of the first power positive terminal 5111C, wherein the at least one pin 5112C can be connected with the main board of the terminal device when the female terminal is fixed to the main board of the terminal device. In addition, the first power positive terminal 5111C further includes a terminal connection portion 5113C, and when the terminal connection portion 5113C is specifically provided, the terminal connection portion 5113C may also be provided with a groove.
In the specific layout of the three first power source positive terminals, referring to fig. 3, the first power source positive terminal 5111B and the first power source positive terminal 5111C are disposed close to the negative electrode terminal 512 with respect to the first power source positive terminal 5111A, and in addition, the first power source positive terminal 5111B and the first power source positive terminal 5111C are disposed on both sides of the terminal connecting portion 5113A of the first power source positive terminal 5111A. In addition, in the present application, with continued reference to fig. 3, the first power positive terminal 5111B and the first power positive terminal 5111C may be disposed opposite to each other, and the groove of the first power positive terminal 5111A may be inserted into the gap between the first power positive terminal 5111B and the first power positive terminal 5111C, so that the three first power positive terminals of the positive terminal 511 may be disposed compactly. Since the positive terminal 511 and the negative terminal 512 of the female terminal are symmetrically disposed, detailed description of the configuration of the negative terminal of the first power supply of the negative terminal 511 is omitted here.
In addition to the above-mentioned structure, referring to fig. 2 and fig. 3 together, the female terminal of the connector of the embodiment of the present application further includes at least one communication terminal 513 disposed between the positive terminal 511 and the negative terminal 512, and the at least one communication terminal 513 may be, but is not limited to, a metal terminal, and it is understood that the at least one communication terminal 513 may be made of other materials with better current capacity. In addition, at least one communication terminal 513 may be an odd number or an even number, and when the communication terminal 513 is an even number, the even number of the communication terminals 513 may be equally divided into two groups, and then the two groups of the communication terminals 513 may be symmetrically disposed, for example, four communication terminals 513 are included in the female terminal shown in fig. 3, the four communication terminals 513 are divided into two groups, and the two groups of the communication terminals 513 are symmetrically disposed. In addition, the whole structure of the female end can be arranged in axial symmetry. Therefore, the structure of the female end is compact, and the miniaturization design of the female end is facilitated.
In addition, with continued reference to fig. 2, when the communication terminal 513 is specifically provided, at least one pin 5112D is provided on the peripheral side of the communication terminal 513, wherein the at least one pin 5112D is connectable with the motherboard of the terminal device when the female terminal is fixed to the motherboard of the terminal device. In addition, the communication terminal 513 further includes a terminal connecting portion 5113D, and when the terminal connecting portion 5113D is specifically provided, the terminal connecting portion 5113D may also be provided with a groove. It is to be noted that the groove of the terminal connection portion 5113D of the communication terminal 513 may also be located on the same axis as the groove of the terminal connection portion 5113B of the first power supply positive terminal 5111B (or the terminal connection portion 5113C of the first power supply positive terminal 5111C). Further, the sectional shapes of the groove of the terminal connecting portion 5113D of the communication terminal 513 and the groove of the terminal connecting portion 5113B of the first power supply positive terminal 5111B (or the terminal connecting portion 5113C of the first power supply positive terminal 5111C) may be the same, so that the groove of the terminal connecting portion 5113D of the communication terminal 513 and the groove of the terminal connecting portion 5113B of the communication terminal 5111B (or the terminal connecting portion 5113C of the first power supply positive terminal 5111C) may be formed by the same forming mold, thereby facilitating the simplification of the processing process.
After the power terminals and the communication terminals are processed and arranged at corresponding positions, the terminals are fixed to form a female terminal of an integrated structure as shown in fig. 4. Wherein, in this application, can adopt to bury the fashioned mode and realize the fixed connection between two adjacent terminals to the maximize buries each terminal in the plastic, thereby is favorable to prescribing a limit to the overall structure's of female end size according to the overall arrangement between each terminal, and makes the overall structure's of female end size as far as possible little. In addition, with reference to fig. 4, the mold used in the molding process may be selected so that when each terminal is embedded in plastic, a terminal limiting structure 514 is formed around some terminals or around each terminal, for example, the terminal limiting structure 514 is disposed around at least one of the first power positive terminal 5111A, the first power positive terminal 5111B, the first power positive terminal 5111C and the communication terminal 513, so as to avoid relative movement between two adjacent terminals, thereby improving the structural stability of the female terminal.
Referring to fig. 5, when the male terminal of the connector of the present application is specifically arranged, the positive terminal 521 and the negative terminal 522 of the male terminal are symmetrically arranged, and since the positive terminal 521 and the negative terminal 522 are arranged in the same manner, the specific structure of the male terminal will be described in detail below by taking the positive terminal 521 as an example. The positive terminal 521 of the male terminal has two positive terminals 5211A and 5211B, respectively. As can be seen from fig. 5, the second power supply positive terminal 5211A and the second power supply positive terminal 5211B are not in contact with each other, and are two independent terminals. In addition, the second power positive terminal 5211A and the second power positive terminal 5211B can be, but not limited to, metal terminals, and it is understood that other materials with better current capacity can be selected for the two terminals.
With continued reference to fig. 5, when the second power supply positive terminal 5211A is specifically provided, at least one pin 5212A is provided on the peripheral side of the second power supply positive terminal 5211A. In addition, the second power supply positive electrode terminal 5211A further includes a terminal connection portion 5213A and a terminal connection portion 5213B which are connected, and when the terminal connection portion 5213A is specifically provided, the terminal connection portion 5213A may be provided as a protrusion; correspondingly, the terminal connecting portion 5213B may be provided as a projection.
Similarly, when the second power source positive terminal 5211B is specifically provided, at least one pin 5212B is provided on the peripheral side of the second power source positive terminal 5211B. In addition, the second power supply positive terminal 5211B further includes a terminal connection portion 5213C and a terminal connection portion 5213D which are connected, and when the terminal connection portion 5213C is specifically provided, the terminal connection portion 5213C may be provided as a protrusion; correspondingly, the terminal connecting portion 5213D may be provided as a projection.
When the two second power source positive terminals are specifically laid out, referring to fig. 6, the second power source positive terminal 5211A and the second power source positive terminal 5211B may be symmetrically arranged, in which case the terminal connection portion 5213A of the second power source positive terminal 5211A and the terminal connection portion 5213C of the second power source positive terminal 5211B are arranged close to each other, and the terminal connection portion 5213B of the second power source positive terminal 5211A and the terminal connection portion 5213D of the second power source positive terminal 5211B are arranged opposite to each other, and in this case, when viewed from fig. 6, the terminal connection portion 5213A and the terminal connection portion 5213B are arranged in an L-shape, and the terminal connection portion 5213C and the terminal connection portion 5213D are arranged in an L-shape. By adopting the arrangement mode of the embodiment of the application, the arrangement of the two second power supply positive terminals of the positive terminal 521 can be more compact. Since the positive terminal 521 and the negative terminal 522 of the male terminal of the connector are symmetrically disposed, detailed description of the specific arrangement of the negative terminal of the second power supply of the negative terminal 522 is omitted here.
In addition to the above structure, referring to fig. 5 and 6, the male terminal of the connector according to the embodiment of the present application further includes at least one communication terminal 523 disposed between the positive terminal 521 and the negative terminal 522, where the at least one communication terminal 523 may be, but is not limited to, a metal terminal, and it is understood that the at least one communication terminal 523 may be made of other materials with better current capacity. In addition, at least one communication terminal 523 may be a single or plural number, and when the communication terminal 523 is plural, the plural communication terminals 523 may be divided into two groups, and then the two groups of communication terminals 523 may be symmetrically disposed, for example, in the male terminal shown in fig. 5, four communication terminals 523 are included, and the four communication terminals 523 are divided into two groups and symmetrically disposed. In addition, the whole structure of the male end can be arranged in axial symmetry. Therefore, the structure of the male end is compact, and the miniaturization design of the male end is facilitated.
In addition, with continued reference to fig. 5, when the communication terminal 523 is specifically provided, at least one pin 5212C is provided on the peripheral side of the communication terminal 523, and when the male end is fixed to the flexible circuit board, the at least one pin 5212C may be connected to the flexible circuit board. In addition, the communication terminal 523 further includes a terminal connection portion 5231, and when the terminal connection portion 5231 is specifically provided, the terminal connection portion 5231 may be provided as a protrusion. It is to be noted that the terminal connection portion 5231 of the communication terminal 523 and the terminal connection portion 5213B of the second power supply positive electrode terminal 5211A (or the terminal connection portion 5213D of the second power supply positive electrode terminal 5211B) may be located on the same axis. Further, the cross-sectional shape of the protrusion of the terminal connection portion 5231 of the communication terminal 523 and the protrusion of the terminal connection portion 5213B of the second power source positive terminal 5211A (or the protrusion of the terminal connection portion 5213D of the second power source positive terminal 5211B) may be the same, so that the protrusion of the terminal connection portion 5231 of the communication terminal 523 and the terminal connection portion 5213B of the second power source positive terminal 5211A (or the protrusion of the terminal connection portion 5213D of the second power source positive terminal 5211B) may be formed by the same forming mold, which is advantageous to simplify the processing process.
After the power terminals and the communication terminals are processed and arranged at corresponding positions, the terminals are fixed to form a male end of an integrated structure as shown in fig. 7. Wherein, in this application, can adopt to bury the fashioned mode and realize the fixed connection between two adjacent terminals to the maximize buries each terminal in the plastic, thereby is favorable to prescribing a limit to the overall structure's of public end size according to the overall arrangement between each terminal, and makes the overall structure's of public end size as far as possible little. In addition, by selecting the mold used in the molding process, when each terminal is embedded with plastic, with reference to fig. 7, a terminal stopper 524 may be formed around some terminals or around each terminal, for example, the terminal stopper 524 may be disposed around at least one of the second power positive terminal 5211A, the second power positive terminal 5211B and the communication terminal 523, so as to prevent relative movement between two adjacent terminals, thereby improving the structural stability of the male terminal.
After knowing the specific structure of the female end and the male end of the connector of the present application, when the connector is used, the positive end of the male end and the positive end of the female end and the negative end of the male end and the negative end of the female end need to be correspondingly connected. Referring to fig. 8, since the positive terminals 521 and 511 of the male terminals and the female terminals are symmetrically disposed, the assembling and fitting relationship between the male terminals and the female terminals of the connector will be described below by taking the positive terminals 521 and 511 of the male terminals and the female terminals as examples.
With continued reference to fig. 8, when the male terminal is inserted into the female terminal, the terminal connection part 5213A of the second power positive terminal 5211A of the male terminal and the terminal connection part 5213C of the second power positive terminal 5211B are both matingly connected to the terminal connection part 5113A of the first power positive terminal 5111A of the female terminal, and when the terminal connection part 5113A is a groove, the terminal connection part 5213A, and the terminal connection part 5213C are protrusions, the protrusions are matingly received in the groove. Similarly, the terminal connecting portion 5213B of the male terminal 5211A is matingly engaged with the terminal connecting portion 5113C of the female terminal 5111C, and when the terminal connecting portion 5113C is a groove and the terminal connecting portion 5213B is a protrusion, the protrusion is matingly received in the groove; in addition, the terminal connection part 5213D of the male-end second power positive terminal 5211B is matched and connected with the terminal connection part 5113B of the female-end first power positive terminal 5111B, and when the terminal connection part 5113B is a groove and the terminal connection part 5213D is a protrusion, the protrusion can be matched and accommodated in the groove. Referring to fig. 9 and 10 together, through the above-mentioned assembling process, the two second power positive terminals of the male terminal and the three first power positive terminals of the female terminal can be integrally connected to form the positive terminal of the connector, i.e., the positive terminal of the connector is an integral structure. It can be understood that, since the positive terminal and the negative terminal of the male terminal of the connector are symmetrically arranged, and the positive terminal and the negative terminal of the female terminal are symmetrically arranged, through the above-mentioned assembling process, the two second power negative terminals of the male terminal and the three first power negative terminals of the female terminal are connected into a whole to form the negative terminal of the connector, i.e. the negative terminal of the connector is also of an integral structure. The connector of the embodiment of the present application has a positive terminal of a unitary structure and a negative terminal of a unitary structure, thereby forming only one current flow path.
In the above embodiment, only the positive terminal of the female terminal includes three first power positive terminals, and the negative terminal includes three first power negative terminals; and the positive terminal of the male terminal includes three second power positive terminals and the negative terminal includes three second power negative terminals, as examples, the assembly of the female terminal and the male terminal to form the connector is described in detail. Of course, it is understood that when the positive terminal of the female terminal includes five first power positive terminals, the negative terminal of the female terminal includes five first power negative terminals, the positive terminal of the male terminal includes two second power positive terminals, and the negative terminal of the male terminal includes two second power negative terminals; or the positive end of the female end comprises three first power supply positive terminals, the negative end of the female end comprises three first power supply negative terminals, the positive end of the male end comprises four second power supply positive terminals, and the negative end of the male end comprises four second power supply negative terminals; still alternatively, the positive terminal of the female terminal includes a first power positive terminal, the negative terminal of the female terminal includes a first power negative terminal, the positive terminal of the male terminal includes a plurality of second power positive terminals, and the negative terminal of the male terminal includes a plurality of second power negative terminals, under the deformation condition that the plurality of first power positive terminals of the positive terminal of the female terminal and the plurality of second power positive terminals of the positive terminal of the male terminal can be connected to form a positive terminal of an integral structure, and the plurality of first power negative terminals of the negative terminal of the female terminal and the plurality of second power negative terminals of the negative terminal of the male terminal can be connected to form a negative terminal of an integral structure, that is, the protection range of the present application falls.
Referring to fig. 11, in the present embodiment, the length direction (length in the X direction in fig. 11) of the female end of the connector is L1, and the width direction (length in the X direction in fig. 11) is L2. Referring to fig. 12, the length of the male end of the connector in the longitudinal direction (length in the X direction in fig. 12) is L3, and the length in the width direction (length in the Y direction in fig. 12) is L4. Referring to fig. 11 and 12 together, if the board area L1 × L2 of the female terminal is larger than the board area L3 × L4 of the male terminal, the board area of the connector is L1 × L2.
In addition to the above embodiment, specifically, the length L1 of the female end may be 4.5mm, and the width L2 may be 2 mm. The length direction L3 of the male end is 3.58mm, and the width direction L4 is 1.65 mm. The footprint of the connector of this embodiment is approximately 4.5mm × 2mm, depending on the dimensions of the female and male terminals described above.
To further illustrate the current capacity of the connector of the present application, it is compared to an existing connector. Referring to fig. 13, the conventional connector has a positive terminal 515 and a negative terminal 516 at a female terminal thereof, which are arranged symmetrically. Therefore, the following description will be made of the difference between the conventional connector and the connector according to the embodiment of the present application, taking the positive terminal of the female terminal as an example: first, referring to fig. 13, the positive terminal 515 of the female terminal includes four independent first power positive terminals, namely a first power positive terminal 5151A, a first power positive terminal 5151B, a first power positive terminal 5151C and a first power positive terminal 5151D, wherein the first power positive terminal 5151A has a terminal connection portion 5152A, the first power positive terminal 5151B has a terminal connection portion 5152B, the first power positive terminal 5151C has a terminal connection portion 5152C, and the first power positive terminal 5151D has a terminal connection portion 5152D. In addition, the terminal connection part 5152A of the first power source positive terminal 5151A and the terminal connection part 5152C of the first power source positive terminal 5151C may be disposed side by side, the terminal connection part 5152A and the terminal connection part 5152C may be disposed toward the negative electrode end, and in addition, the terminal connection part 5152A and the terminal connection part 5152C may be provided in a convex structure; the first power source positive terminal 5151B is disposed on a side of the first power source positive terminal 5151A close to the negative electrode end 516, the first power source positive terminal 5151D is disposed on a side of the first power source positive terminal 5151C close to the negative electrode end 516, the terminal connection portion 5152B and the terminal connection portion 5152D are oppositely disposed, and in addition, the terminal connection portion 5152B and the terminal connection portion 5152D may be disposed in a groove structure. After the terminals of the female end of the prior art connector are laid out, the terminals may be further secured to form a unitary female end as shown in fig. 14.
Next, referring to fig. 15, the positive terminal 525 and the negative terminal 526 of the male terminal of the connector of the related art are symmetrically disposed, and the arrangement form of the male terminal will be described by taking the positive terminal 525 of the male terminal as an example. The positive terminal 525 of the male terminal includes two independent positive terminals 5251A and 5251B, wherein the positive terminal 5251A has a terminal connection portion 5252A and a terminal connection portion 5252B, the positive terminal 5251B has a terminal connection portion 5252C and a terminal connection portion 5252D, and terminal contacts may be disposed on the terminal connection portion 5252A and the terminal connection portion 5252C to improve the contact reliability between the terminals. The terminal connection portion 5252B is provided on the side of the terminal connection portion 5252A close to the negative electrode end 526, the terminal connection portion 5252D is provided on the side of the terminal connection portion 5252C close to the negative electrode end 526, and the terminal connection portion 5252B and the terminal connection portion 5252D may be provided in a convex structure. After the terminals of the male end of the prior art connector are laid out, the terminals may be secured to form a male end of unitary construction as shown in fig. 16.
Finally, when the male terminal is connected to the female terminal, referring to fig. 13 and 15 together, the terminal connection part 5252A of the second power supply positive terminal 5251A of the male terminal is connected to the terminal connection part 5152A of the first power supply positive terminal 5151A of the female terminal in a mating manner; the terminal connection part 5252B of the male-end second power positive terminal 5251A is in mating connection with the terminal connection part 5152B of the female-end first power positive terminal 5151B; the terminal connection part 5252C of the male-end second power positive terminal 5251B is in mating connection with the terminal connection part 5152C of the female-end first power positive terminal 5151C; the terminal connection part 5252D of the male-end second power source positive terminal 5251B is connected in mating relation with the terminal connection part 5152D of the female-end first power source positive terminal 5151D. Referring to fig. 17, through the above-described assembly process, the two second power positive terminals of the male terminal and the four first power positive terminals of the female terminal may be connected to form the positive terminal of the connector. It can be understood that, since the positive terminal and the negative terminal of the male terminal of the connector are symmetrically arranged and the positive terminal and the negative terminal of the female terminal are symmetrically arranged, the two second power negative terminals of the male terminal and the four first power negative terminals of the female terminal are connected to form the negative terminal of the connector through the above-mentioned assembling process. With continued reference to fig. 17, the prior art connector has two positive terminals and two negative terminals (only the positive terminal 61 and the positive terminal 62 are shown in fig. 17 because the positive and negative terminals of the connector are symmetrically disposed). Because the current enters the positive electrode of the battery through the positive end of the connector and then flows out of the negative electrode of the battery into the negative end of the connector to form a current flowing channel. It will be appreciated that in this prior art connector, a current flow path is formed from the current passing through the positive terminal 61 to the battery and then to the negative terminal corresponding to the positive terminal 61; and current flows through the positive terminal 62 to the battery and then to the negative terminal corresponding to the positive terminal 62 to form another current flow path. Thus, two independent parallel current flow paths can be formed in the prior art connector.
In addition to the above-described conventional technique, specifically, referring to fig. 18, a dimension L5 in the longitudinal direction (X direction in fig. 18) of the female end may be 5mm, and a dimension L6 in the width direction (Y direction in fig. 18) may be 2.6 mm. Referring to fig. 19, a dimension L7 in the length direction (X direction in fig. 19) of the male end is 3.93mm, and a dimension L8 in the width direction (Y direction in fig. 19) is 2.6 mm. The footprint of the prior art connector is approximately 5mm x 2.6mm, depending on the dimensions of the female and male terminals.
When evaluating the flow capacity of the connector (the following discussion is based on the premise that the terminal copper material of the connector is made of the material with the highest current conductive property and the path length is the same), the impedance of the connector is first considered to be reduced, and the impedance value of the power supply terminal is calculated by the following formula:
R＝(17.24*10e-3/ρ)*(L/A)；
r is the bulk impedance;
ρ is the metal conductivity;
l is the path length;
a is the conduction path area of the current.
It can be seen from the above calculation formula of the impedance value that the impedance of the power supply terminal is inversely proportional to the conduction path area of the current, so that the overall impedance can be reduced by increasing the conduction path area of the current.
On the other hand, for the evaluation of the current capacity of the connector, when the current is large, the temperature does not exceed 30 degrees as a judgment standard, wherein the temperature rise formula of the connector is as follows:
△T＝I^2*L^2/(2*ρ**A^2)；
r is the bulk impedance;
ρ is the metal conductivity;
is the thermal conductivity of the metal;
l is the path length;
a is the conduction path area of the current.
As can be seen from the above temperature rise calculation formula, the temperature at which the connector rises is inversely proportional to the square of the conduction path area of the current. Since the larger the current flowing through the connector, the more the heat generated by the connector, in the present application, the larger the current flowing through the connector can be at a temperature not exceeding 30 degrees by combining the positive terminal (or the negative terminal) of the female terminal and the positive terminal (or the negative terminal) of the male terminal into a large positive terminal (or a negative terminal) to increase the area of the conduction path.
It will be appreciated that in the embodiments of the present application, since there is only one current flow path, the current conduction path area of the connector is large, and thus the overall impedance of the connector is small. And experiments prove that the maximum current capacity of the connector of the embodiment of the application can be 15A.
In the connector of the prior art, two current flow channels are not communicated with each other, and are parallel to each other. It can be understood that, in the case of a small difference in the area of the occupation planes, compared with the area of the current conduction path in which the connector of the present application is provided with only one current flow channel, the area of the current conduction path of each current flow channel in the prior art is small, and the impedance thereof is large, so that the overall impedance of the connector is large. And through experimental verification, the current capacity of the connector in the prior art can be 8A at most. Therefore, if the quick charging capability is to be improved, the area of the current conducting path needs to be increased, but the occupied area of the connector is larger, so that the occupied space of the connector in the terminal equipment is larger, and the development trend of reducing the size of devices in the terminal equipment to increase the setting of the functional module of the terminal equipment is opposite to the development trend of reducing the size of devices in the terminal equipment.
As can be seen from the comparison, the connector of the embodiment of the present application is formed by connecting two second power positive terminals of the male terminal and three first power positive terminals of the female terminal to form a positive terminal of the connector; two second power negative terminal of public end and the three first power negative terminal of female end are connected and are formed the negative pole end of connector to make the connector of this application embodiment have a positive pole end and a negative pole end, thereby form a current circulation passageway, with be favorable to carrying out effectual control's basis in the whole size to the connector, increase current conduction path area, and then agree with mutually with the development requirement of filling the technique soon.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. A connector comprises a positive terminal and a negative terminal, and is characterized in that the connector comprises a female terminal and a male terminal, the female terminal comprises a first positive terminal and a first negative terminal, and the first positive terminal and the first negative terminal are symmetrically arranged; the public end comprises a second positive end and a second negative end, the second positive end and the second negative end are symmetrically arranged, wherein:
the first positive terminal comprises a plurality of power positive terminals and the second positive terminal comprises a plurality of power positive terminals; the first negative terminal comprises a plurality of power negative terminals and the second negative terminal comprises a plurality of power negative terminals;
the plurality of power positive terminals of the second positive terminal are connected with the plurality of power positive terminals of the first positive terminal in a matching manner to form a positive terminal of the connector, and the plurality of power negative terminals of the second negative terminal are connected with the plurality of power negative terminals of the first negative terminal in a matching manner to form a negative terminal of the connector; the positive terminal of the connector is of an integrated structure, and the negative terminal of the connector is of an integrated structure.
2. The connector according to claim 1, wherein the first positive terminal has a first power positive terminal, a second power positive terminal, and a third power positive terminal provided independently, and a side of the first power positive terminal facing the first negative terminal is provided with a first terminal connecting portion; the second power positive terminal and the third power positive terminal are respectively arranged at two sides of the first terminal connecting part, the second power positive terminal is provided with a second terminal connecting part, the third power positive terminal is provided with a third terminal connecting part, and the second terminal connecting part and the third terminal connecting part are oppositely arranged;
the second positive terminal is provided with a fourth power positive terminal and a fifth power positive terminal, the fourth power positive terminal comprises a fourth terminal connecting part and a fifth terminal connecting part which are connected, and the fifth power positive terminal comprises a sixth terminal connecting part and a seventh terminal connecting part which are connected; the fourth terminal connecting part and the sixth terminal connecting part are arranged close to each other, and the fifth terminal connecting part and the seventh terminal connecting part are arranged opposite to each other;
the fourth terminal connecting part and the sixth terminal connecting part are connected with the first terminal connecting part, the fifth terminal connecting part is connected with the second terminal connecting part, and the seventh terminal connecting part is connected with the third terminal connecting part to form a positive terminal of the connector.
3. The connector of claim 2, wherein the first terminal connecting portion has a first recess, the fourth terminal connecting portion is configured as a first protrusion, the sixth terminal connecting portion is configured as a second protrusion, and the first protrusion and the second protrusion are both received in the first recess.
4. The connector of claim 3, wherein a first terminal contact and a second terminal contact are disposed within the first recess, the first terminal contact abutting the first protrusion, the second terminal contact abutting the second protrusion.
5. The connector according to any one of claims 2 to 4, wherein the second terminal connecting portion has a second recess, the fifth terminal connecting portion is configured as a third protrusion, and the third protrusion is received in the second recess.
6. The connector according to any one of claims 2 to 4, wherein the third terminal connecting portion has a third recess, and the seventh terminal connecting portion is configured as a fourth protrusion, and the fourth protrusion is received in the third recess.
7. The connector according to any one of claims 2 to 4, wherein at least one first pin is further provided around the first power source positive terminal; and/or at least one second pin is arranged on the periphery side of the positive terminal of the second power supply; and/or at least one third pin is arranged on the peripheral side of the positive terminal of the third power supply.
8. The connector according to any one of claims 2 to 4, wherein at least one fourth pin is further provided around the fourth power source positive terminal; and/or at least one fifth pin is arranged on the periphery side of the positive terminal of the fifth power supply.
9. The connector of claim 2, wherein the female end further comprises a first terminal retention structure disposed on a peripheral side of at least one of the first power positive terminal, the second power positive terminal, and the third power positive terminal;
the male end further comprises a second terminal limiting structure, and the second terminal limiting structure is arranged on the peripheral side of at least one of the fourth power positive terminal and the fifth power positive terminal.
10. The connector of claim 2, wherein at least one first communication terminal is further disposed between the first positive terminal and the first negative terminal, and at least one second communication terminal is further disposed between the second positive terminal and the second negative terminal; the first communication terminals are connected with the second communication terminals in a one-to-one correspondence mode.
11. The connector according to claim 10, wherein the first communication terminal is plural, and the plural first communication terminals are divided into two groups, one group being disposed on a side of the second power supply positive terminal adjacent to the first negative terminal, and the other group being disposed on a side of the third power supply positive terminal adjacent to the first negative terminal;
the second communication terminals are divided into two groups, one group is arranged on one side of the fifth terminal connecting part close to the second negative end, and the other group is arranged on one side of the seventh terminal connecting part close to the second negative end.
12. The connector according to claim 10 or 11, wherein when the female terminal includes a first terminal stopper structure, the first terminal stopper structure is further provided on a side of a periphery of the first communication terminal; and/or the presence of a gas in the gas,
when the male end comprises a second terminal limiting structure, the second terminal limiting structure is further arranged on the periphery side of the second communication terminal.
13. A terminal device comprising a first printed circuit board, a first flexible circuit board, a board-to-board connector, a second printed circuit board, and a connector according to any one of claims 1 to 12 connected in this order, wherein:
the charging interface of the terminal equipment is arranged on the first printed circuit board;
the female end of the connector is fixed on a second printed circuit board, and the male end is connected with the battery of the terminal equipment through a second flexible circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553765.2U CN211858943U (en) | 2019-09-18 | 2019-09-18 | Connector and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553765.2U CN211858943U (en) | 2019-09-18 | 2019-09-18 | Connector and terminal equipment |
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| CN211858943U true CN211858943U (en) | 2020-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594731A (en) * | 2021-07-26 | 2021-11-02 | 珠海冠宇电源有限公司 | Connector and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594731A (en) * | 2021-07-26 | 2021-11-02 | 珠海冠宇电源有限公司 | Connector and battery pack |
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