Terminal assembly and charging pile

Abstract

The utility model provides a terminal assembly and a charging pile, the terminal assembly comprises pins and fixing parts, the pins are used for being rigidly connected to a circuit board, and the fixing parts are arranged on the peripheral sides of the pins so as to wrap at least one part of the pins and form fixation among different pins. According to the terminal assembly, the fixing piece is arranged on the peripheral side of the pin, and then at least one part of the pin is wrapped and fixed in the fixing piece, so that the pin can be protected, and damage caused by the fact that the pin is impacted by an external object is avoided. At least one part of each pin is wrapped and fixed in the fixing piece, so that the pins can form a whole, the pins can be integrally disassembled and assembled, the disassembly and assembly difficulty is reduced, and the disassembly and assembly efficiency and the maintenance efficiency are improved. Meanwhile, the overall strength can be improved, and the risk of damage caused by external force is further reduced. Moreover, the number of components is small, the structure is simple, the size is small, the space is saved, the number of connecting ports is small, and the reliability is high.

Description

Technical Field

[0001] This application belongs to the technical field of charging devices, and particularly relates to a terminal assembly and a charging pile. Background Art

[0002] With the increasing number of new energy vehicles in use, the demand for charging new energy vehicles has also increased accordingly. When a new energy vehicle is charging, one end of the charging gun needs to be connected to the new energy vehicle, and the other end needs to be connected to the charging terminal of the charging pile, and then the connection with the main board of the charging pile is achieved through the charging terminal.

[0003] In the prior art, pins are usually respectively connected to a flexible cable and arranged in a small housing, and the cable is led out from this housing. The use of the cable requires manual operation (by an electrician) for connecting the pins to the cable and for coupling the cable to other parts of the charger, so the assembly cost is high and the wiring is complex.

[0004] In addition, the charging terminal needs to be frequently inserted and removed from the charging gun, so there is a certain probability of damage to the charging terminal. When the charging terminal is damaged, it needs to be removed from the main board and replaced. The charging terminal includes a plurality of independent pins. When disassembling and assembling, each independent pin needs to be disassembled from the main board one by one or connected to the main board one by one, resulting in a relatively cumbersome disassembly and assembly operation, and it is also difficult to control the accuracy of the relative position when each electrode is aligned and welded separately. After the assembly is completed, each pin is also independent of each other, resulting in poor strength and being easily damaged when subjected to external forces, further increasing the risk of damage. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by this application is to provide a terminal assembly and a charging pile, which can reduce the disassembly and assembly difficulty of the terminal assembly, increase the strength of the terminal assembly, and reduce the probability of damage to the terminal assembly during disassembly and assembly.

[0006] To solve the above problems, in the first aspect of this application, a terminal assembly is provided, which includes pins and a fixing member. The pins are used for rigid connection to a circuit board, and the fixing member is arranged on the outer peripheral side of the pins. The fixing member is fixedly connected to the outer peripheral wall of the pins to wrap at least a part of the pins therein and form a fixation between different pins.

[0007] By setting a fixing member and enabling the fixing member to wrap and fix at least a part of the pins therein, it is possible to form a fixation between different pins, so that different pins can be fixed as a whole. When disassembling and assembling, the pins can be synchronously removed from the circuit board or synchronously assembled onto the circuit board as a whole. When assembling, the positions between the electrodes are already relatively fixed, so the accuracy is high, and the disassembly and assembly operations are time-saving and labor-saving. Moreover, after being assembled onto the circuit board, since the pins are connected to each other to form a whole, the overall strength is greater, the stability is stronger, and the damage risk is reduced. And the terminal assembly is directly mounted on the housing of the charging pile, and the fixing member is fixedly connected to the housing of the charging pile, without the need for an additional small housing, saving the space of the charging pile.

[0008] In a design scheme, the fixing member is an integral component with an integrated structure. The fixing member is simultaneously connected to each pin to synchronously wrap and fix different pins therein, thereby wrapping each pin and fixing each pin together, so that each pin is connected to form a whole. While increasing the overall strength, it also facilitates the disassembly and assembly operations.

[0009] In a design scheme, the fixing member includes at least two connecting segments, and the at least two connecting segments are detachably connected. In this design scheme, the fixing member has a split structure and can be divided into at least two connecting segments. After all the connecting segments are connected, the fixing member as a whole is formed. Among them, different connecting segments are detachably connected. When it is necessary to replace the pins, the fixing member can be disassembled, and then the pins can be removed from the fixing member. After loading the pins, the connecting segments are assembled together to form a complete fixing member to fix the pins. Each connecting segment fixes a part of the pins respectively, so that the pins are dispersedly fixed, facilitating the disassembly and assembly of the pins. Specifically, the number of connecting segments can be two, three or more. Taking the number of connecting segments being three and the number of pins being seven as an example, two pins are respectively fixed in two of the connecting segments, and three pins are fixed in the other connecting segment. Then, after the three connecting segments are connected to form the fixing member as a whole, each pin is fixed therein.

[0010] Detachable connection between different connecting segments can be achieved through connection methods such as snap connection, splicing and riveting. Specifically, among adjacent connecting segments, a snap can be provided on one connecting segment, and a hook can be provided on the other connecting segment, and then detachable snap connection can be achieved through the snap and the hook. Similarly, a slot can be provided on one connecting segment, and a tongue can be provided on the other connecting segment, thereby achieving splicing and riveting, etc.

[0011] The pins of the terminal assembly can include various types, such as power output pins, signal pins, ground pins, etc. The specific types of pins can be selected and designed according to actual requirements and industry standards. In this application, the types and numbers of pins are not limited.

[0012] The fixing member wraps part or all of each pin, thereby achieving firm fixation of the pins and avoiding problems such as pin wobbling or detachment from the fixing member. The pins are respectively connected to the circuit board of the charging pile and the charging gun. By setting the fixing member, good connection stability between the pins and the circuit board and between the pins and the charging gun is ensured.

[0013] In a design scheme, the fixing member is arranged on the part of the pin close to the circuit board, so that the part of each pin close to the circuit board is fixed as a whole, which is convenient for disassembly, insertion and extraction with the circuit board, and at the same time ensures good structural strength of the part of the pin close to the circuit board.

[0014] In this design scheme, each pin can be of a cylindrical structure, and a section of each pin close to the circuit board is wrapped and fixed in the fixing member, thereby forming a stable and firm whole.

[0015] In a design scheme, the fixing member is assembled with the pins after being independently manufactured. When the fixing member is manufactured, a plurality of through holes are formed on itself. The through holes are used for inserting the pins, and the through holes are adapted to the corresponding pins, so that the pins can be inserted into and fixed in the through holes one by one. For example, through holes can be formed by drilling holes on the fixing member after it is formed, or through holes can be directly formed when the fixing member is injection-molded separately.

[0016] In a design scheme, the fixing member can be directly injection-molded on the pins, so that the fixing member and the pins form a whole. Specifically, when the fixing member is injection-molded on the pins, due to the occupation of the pins, through holes are formed in the fixing member at the positions of the pins. This connection method between the pins and the through holes can also be called that the pins are fixed in the through holes one by one, ensuring good connection strength between the pins and the fixing member.

[0017] The terminal assembly includes a connecting conductor. The first end of the connecting conductor is connected to the pin, and the second end of the connecting conductor is located outside the fixing member so that the second end can be connected to the circuit board.

[0018] The connecting conductor is respectively connected to the circuit board and the pin, that is, the pin is electrically connected to the circuit board through the connecting conductor.

[0019] As a feasible example in this design scheme, the first end of the connecting conductor and the end of the pin connected to the connecting conductor are jointly wrapped and fixed in the fixing member, so that the fixing member can fix and protect the connection part between the connecting conductor and the pin, avoid disconnection of the connection part between the connecting conductor and the pin due to external force, and thus ensure good conductive stability.

[0020] As a feasible example in this design solution, the connecting conductor is entirely located outside the fixing member. The fixing member wraps and fixes one end of the pin close to the connecting conductor, but the connecting conductor is not wrapped by the fixing member. The connecting conductor is connected to the end face of the pin, which can facilitate the connection between the connecting conductor and the pin and also facilitate the replacement of the connecting conductor.

[0021] The connecting conductor can be made of a conductor with strong electrical conductivity such as copper. The connecting conductor can be in a strip-shaped structure. Specifically, the connecting conductor can be in a straight shape. The first end of the connecting conductor is fixedly connected to the pin, for example, by welding. The second end of the connecting conductor is used for detachable connection with the circuit board, for example, by plugging.

[0022] The number of connecting conductors is the same as the number of pins, and the connecting conductors are connected to the pins in a one-to-one correspondence. The number of connecting conductors can also be the same as the number of plugging positions on the circuit board and be plugged into the plugging positions in a one-to-one correspondence.

[0023] Specifically, the circuit board can be provided with plugging holes, and the connecting conductors are inserted into the plugging holes. Or, through holes can be opened on the connecting conductors, and plugging posts are provided at the plugging positions of the circuit board, and the plugging posts are inserted into the through holes of the connecting conductors to achieve plugging. Or, plugging posts are provided at the plugging positions of the circuit board, through holes are opened on the plugging posts, and the connecting conductors are inserted into the through holes on the plugging posts to achieve plugging.

[0024] In one design solution, the pins are rigidly connected to the circuit board through the connecting conductors, which not only ensures good connection strength among the pins, the connecting conductors, and the circuit board, but also makes the connection operation simpler and easier, with a fast connection speed and high work efficiency.

[0025] Among them, rigid connection means that the connection between two objects has high stiffness and anti-displacement properties and is not prone to relative displacement. Specifically, rigid connection can include firm plugging, welding, etc.

[0026] As a feasible example in this design solution, the connecting conductor is made of a rigid material and is fixedly connected to the circuit board.

[0027] Rigid material refers to a material that is not prone to deformation or distortion under the action of external forces. Rigid materials usually have high elastic modulus and anti-tensile properties, can maintain their shape and structural stability, and are not prone to plastic deformation. Rigid materials include metal materials such as aluminum and copper.

[0028] In this example, the connecting conductor can specifically be made of good metal conductors such as copper, silver, and aluminum. Copper, silver, and aluminum not only have high electrical conductivity but also have a certain rigidity, with a strong ability to conduct current, ensuring smooth current transmission, reducing the resistance in current transmission, enabling good connection strength between the pins, the connecting conductor, and the circuit board, and making it easier to assemble the connecting conductor with the circuit board.

[0029] In this example, the connecting conductor includes a buffer section, and at least a part of the buffer section is a bent structure. By setting at least a part of the buffer section as a bent structure, stress concentration can be reduced, stress can be lowered, and the tensile strength of the structure can be improved. Moreover, by setting the buffer section, tensile stress can also be alleviated, the fatigue of the connecting conductor can be reduced, the mechanical properties can be improved, and the stability and lifespan of the structure can be enhanced.

[0030] In this example, the bent structure includes an arc-shaped bent section. The arc-shaped bent section is arc-shaped and can be composed of a single circular arc or multiple circular arcs connected in sequence. When the arc-shaped bent section is composed of multiple circular arcs connected in sequence, the connected circular arcs are smoothly transitioned, making the arc-shaped bent section approximately form a wavy structure. More specifically, the arc-shaped bent section can be formed by small-angle bending deformations such as S-shaped or C-shaped.

[0031] In this example, the bent structure includes an angled bent section. The angled bent section includes at least two straight sections connected in sequence, and each straight section is connected in sequence with an angle less than 180 degrees between adjacent straight sections, making the angled bent section approximately form a toothed shape.

[0032] In this example, the bent structure can simultaneously include an arc-shaped bent section and an angled bent section, that is, a part of the bent structure is bent along an arc and a part is bent along an angle, which can also provide a good buffering effect.

[0033] As a feasible example in this design solution, at least a part of the fixing member is a bent structure, which can facilitate the operator to insert the pin into the circuit board after holding the fixing member. Specifically, after the operator holds the fixing member, since at least a part of the fixing member is a bent structure, when inserting the pin into the circuit board, it can reduce the obstruction of the fixing member to the operator's line of sight, making it easier for the operator to observe the insertion position on the circuit board. At the same time, it is also more convenient for the operator to hold the fixing member.

[0034] Among them, the fixing member can be arc-shaped bent or angled bent. In the case where the fixing member is arc-shaped bent, the arc formed by the fixing member is a circular arc and is a minor arc, preferably an arc less than a quarter of a circle.

[0035] Specifically, in the example of the angled bend, the fixing member includes a first section and a second section. The first section and the second section are connected along the extending direction of the fixing member, and the first section and the second section are arranged at an obtuse angle, which can facilitate the operator to observe the insertion position on the circuit board and also facilitate the operator to hold.

[0036] Among them, both the first section and the second section extend linearly, and an angled bend is formed at the connection of the first section and the second section, and the angled bend is an obtuse angle.

[0037] In this example, the buffer section of the connecting conductor can also be an angled structure. At least a part of the connecting conductor extends in the same direction as the first section, and at least a part of the connecting conductor extends in the same direction as the second section. The angle of the angled structure of the buffer section can be equal to the angle of the angled structure of the fixing member, and the two angled positions correspond, that is, the connecting conductor and the buffer section are bent at the same place.

[0038] In a design scheme, the connecting conductor is connected to the circuit board through a crown spring connector. Among them, the crown spring connector can also be called a crown spring PCB board connector, which can be used to connect to the circuit board and has the characteristics of simple, reliable and fast connection.

[0039] The crown spring connector includes a female socket and a male head. The female socket is arranged on the circuit board, and the male head is connected to the connecting conductor or the connecting conductor is used as the male head. The male head is used to be inserted into the female socket to realize electrical connection. A spring or a metal spiral piece is used as a connecting element between the female socket and the male head of the crown spring connector, so as to provide certain elasticity and pressure to ensure the reliability and stability of the connection.

[0040] Specifically, place the female socket on the circuit board and weld it in place. Insert the male head into the female socket, ensure correct alignment, and apply appropriate insertion force until the plug is fully inserted. In order to avoid reverse insertion or socket loosening, a corresponding guiding structure can be set between the female socket and the male head.

[0041] In a design scheme, the connecting conductor is detachably plugged into the circuit board, which can ensure good connection stability while facilitating the installation and disassembly between the connecting conductor and the circuit board.

[0042] As a feasible example in this design scheme, the connecting conductor includes a plug joint, a plug hole is arranged on the circuit board, the maximum diameter of the plug joint is greater than the aperture of the plug hole, and the maximum diameter of the plug joint can generate elastic deformation along the radial direction of the plug joint, so that when the plug joint is inserted into the plug hole, the hole wall of the plug hole can press the plug joint to fix the plug joint inside, thereby realizing the detachable plug connection between the connecting conductor and the circuit board.

[0043] In this example, the plug connector can be a fisheye terminal structure, also known as a press-fit terminal. Specifically, the structure of the fisheye terminal mainly includes a base, two elastic parts connected to the base, and a pin part connected to the two elastic parts. The elastic part is arc-shaped, and the two elastic parts are arranged opposite each other, forming a fisheye hole between the two elastic parts. When the fisheye terminal is inserted, the two elastic parts are squeezed and elastically contracted, allowing the fisheye terminal to be smoothly inserted into the plug hole of the circuit board, thereby achieving an electrical connection between the fisheye terminal and the circuit board, eliminating the need for soldering and making replacement convenient. The fisheye terminal relies on the two elastic parts to contract and be inserted into the plug hole of the circuit board to output the signal.

[0044] In one design scheme, a first seal is provided at the connection between the connecting conductor and the circuit board, which can provide good protection and sealing for the connection between the connecting conductor and the circuit board, preventing external dust and moisture from entering the connection, thereby avoiding corrosion and damage to the connection caused thereby.

[0045] As a feasible example of this design solution, the first sealing member can be a sealing strip. The sealing strip is applied to the connection between the conductor and the circuit board, ensuring that the sealing strip completely covers the connection. Use your fingers or a tool to press or knead the sealing strip until it fully adheres to the surface of the connection to ensure a complete seal.

[0046] In a second aspect of the present application, a charging pile is provided, comprising the terminal assembly as described above.

[0047] The charging pile includes a housing, pins are provided through the housing, and a fixing member is connected to the housing. By directly connecting the fixing member to the housing, the housing can support and fix the fixing member. The weight of the fixing member and components such as the pins connected to the fixing member is borne by the housing, thereby reducing the weight borne by the circuit board and preventing the circuit board from being deformed and damaged due to excessive weight. At the same time, by allowing the housing to bear the weight of components such as the fixing member and the pins, the pins can be fixed without the help of the circuit board, which can prevent the impact force on pin 1 from being transmitted to the circuit board, ensuring a long service life for the circuit board and ensuring good connection stability between the pin and the circuit board.

[0048] The housing can be the outer shell of the charging pile or part of the housing at the charging port of the charging pile. The housing is located outside the other components of the charging pile to support and protect them. The pins are arranged from the inside to the outside of the housing. That is, one end of the pin is outside the housing and is used to connect to the charging gun. The other end of the pin is inside the housing and is used to electrically connect to the circuit board also inside the housing to achieve current conduction.

[0049] The housing is fixedly connected to the fixing member, and thus the housing can bear the weights of components such as the fixing member and the pins. Specifically, the housing and the fixing member can be fixed together by gluing, or can be fixedly connected by connecting components such as screws.

[0050] A socket portion is provided on the housing. The socket portion sleeves the outer peripheral side of the terminal assembly, and the pins are located in the space surrounded by the socket portion. The socket portion is connected to the fixing member to fix the fixing member on the housing. By providing the socket portion, the fixing member can be stably fixed. By making the pins located in the space surrounded by the socket portion, the pins can be in the external environment of the housing, and thus the charging gun can be plugged into the pins to achieve charging.

[0051] The socket portion can be an independent component connected to the housing, or can be an integral structure with the housing. Making the socket portion an integral structure with the housing can reduce the number of components and the installation difficulty. In this application, taking the socket portion and the housing as an integral structure as an example, the socket portion can be formed by the housing being recessed into a groove. Specifically, the outer wall of the housing is a plane, and the location of the socket portion is recessed inward to form a circular groove, and the recessed circular groove is the socket portion. An installation hole is opened in the groove bottom of the circular groove along the depth direction of the circular groove. The installation hole sleeves the outer peripheral side of the pin, that is, the pin passes through the housing through the installation hole of the circular groove body. The fixing member is fixed on the outer wall of the groove bottom of the socket portion, and the fixing member and the socket portion are oppositely arranged along the depth direction of the circular groove, ensuring the stable connection between the fixing member and the socket portion.

[0052] The socket portion is generally cylindrical, and the fixing member is also generally cylindrical. The socket portion and the fixing member are coaxially arranged, and the outer diameters of the formed cylinders are approximately equal.

[0053] The end face of the fixing member and the end face of the socket portion can be connected by gluing, or can be connected by detachable connection methods such as snap connection or screw connection, which is convenient for maintenance and disassembly.

[0054] A second sealing member is clamped between the socket portion and the fixing member, that is, a sealing member is provided between the end face of the socket portion close to the fixing member and the end face of the fixing member close to the socket portion, ensuring a good sealing effect, preventing dust and water vapor from entering through the gap between the socket portion and the fixing portion, and thus ensuring a good service life.

[0055] Beneficial effects

[0056] In an embodiment of the present utility model, a terminal component and a charging pile are provided. Among them, by providing a fixing member and arranging the fixing member on the outer peripheral side of the pin, at least a part of the pin is wrapped and fixed inside, which can play a role in protecting the pin and avoid damage caused by external objects hitting the pin. By arranging the fixing member to wrap and fix at least a part of the pin inside, the pin can be formed into a whole, and the overall disassembly and assembly of the pin can be realized, reducing the disassembly and assembly difficulty, improving the disassembly and assembly efficiency and the maintenance efficiency. At the same time, it can also increase the overall strength and further reduce the risk of damage after being subjected to external force. Moreover, the installation of the upper half of the terminal component is disassembled to the housing, and the lower half is directly welded or inserted into the upper plate, making the installation more convenient. Compared with the prior art, the terminal component in this embodiment has fewer components, a simple structure, so it is small in size, saves space, has fewer connection ports, strong reliability, and is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 FIG. 6 is a perspective structural view of the terminal component according to an embodiment of the present application;

[0058] Figure 2 FIG. 10 is a perspective structural view of the terminal component and the circuit board according to an embodiment of the present application;

[0059] Figure 3 FIG. 14 is a cross-sectional view of the terminal component and the circuit board according to the first implementation manner of the embodiment of the present application from the first perspective;

[0060] Figure 4 FIG. 18 is a cross-sectional view of the terminal component and the circuit board according to the second implementation manner of the embodiment of the present application from the first perspective; [[ID=rg=19]]

[0061] Figure 5 FIG. 22 is a structural view of the terminal component and the circuit board according to the second implementation manner of the embodiment of the present application;

[0062] Figure 6 FIG. 26 is a structural view of the terminal component and the circuit board according to the fourth implementation manner of the embodiment of the present application;

[0063] Figure 7 FIG. 30 is a cross-sectional view of the terminal component and the circuit board according to the fifth implementation manner of the embodiment of the present application from the first perspective;

[0064] Figure 8 FIG. 34 is a cross-sectional view of the terminal component and the circuit board according to the fifth implementation manner of the embodiment of the present application from the second perspective;

[0065] Figure 9 FIG. 38 is a structural view of the terminal component and the circuit board according to the sixth implementation manner of the embodiment of the present application;

[0066] Figure 10This is a cross-sectional view of the terminal assembly, circuit board, and housing in the second perspective of the embodiments of the present application.

[0067] The reference numerals are shown as:

[0068] 1. Pin; 11. Connecting conductor; 111. First end; 112. Second end; 113. Plug connector

[0069] 2. Fixing member; 21. First section; 22. Second section

[0070] 3. Circuit board; 31. Insertion hole; 32. Crown spring connector

[0071] 4. Housing; 41. Socket part Detailed implementation manners

[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0073] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0074] In the present application, unless otherwise clearly defined and limited, the terms "install", "connect", "connection", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] The following describes the preferred embodiments of the present invention with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0076] Figure 1The perspective structural schematic diagram of the terminal assembly in the embodiment of the present application is shown. Among them, the terminal assembly includes a pin 1, a fixing member 2, and a rigid connection conductor 11. The fixing member 2 is fixedly connected to the outer peripheral wall of the pin 1. The types of the pins 1 can be various, and the number of the pins 1 can also be multiple. The fixing member 2 is an integral component. The fixing member 2 is connected to each pin 1, and then a section of each pin 1 close to the connection conductor 11 is covered and fixed inside, and then each pin 1 is fixed together, so that each pin 1 is connected into a whole, which not only increases the overall strength but also facilitates disassembly and assembly operations. The fixing member 2 needs to fix a plurality of electrode terminals and also needs to bear the force of the user inserting and pulling out the charging gun multiple times. Therefore, it needs to have a certain thickness, and the connection between the fixing member 2 and the housing 4 needs to be stable.

[0077] As Figure 1 shown, the fixing member 2, the pin 1, and the connection conductor 11 can all be substantially cylindrical structures. The fixing member 2 is arranged on the part of the pin 1 close to the circuit board 3. The fixing member 2 connects and fixes the parts of each pin 1 close to the circuit board 3 into a whole, which is convenient for disassembly, insertion, and extraction with the circuit board 3, and at the same time ensures that the part close to the circuit board 3 has good structural strength. Among them, the fixing member 2 can be directly injection-molded on each pin 1, ensuring good overall stability. And the injection-molding fixing method has the advantages of stable dimensions and accurate positioning. The connection conductor 11 is connected to the pin 1 in a one-to-one correspondence, so that the pin 1 can be connected to the circuit board 3 through the corresponding connection conductor 11. The material between the fixing member 2 and the pin 1 can also be other materials that can provide a fixing clamping force, such as fiber, rubber, or environmentally friendly materials.

[0078] Figure 2 The perspective structural schematic diagram of the terminal assembly, the circuit board 3, and a part of the housing 4 in the embodiment of the present application is shown. Among them, a part of the terminal assembly is connected to the housing 4. The housing 4 is sleeved on the outer peripheral side of the terminal assembly. The connection conductor 11 of the terminal assembly is connected to the circuit board 3 to achieve electrical conduction. The insertion and extraction force borne by the fixing member 2 is transmitted to the housing 4 through the fixed connection with the housing 4 and is borne by the housing 4. The upper half of the terminal is disassembled and installed on the housing, which is further simplified compared with the existing solution.

[0079] As Figure 2 shown, the connection conductor 11 is directly inserted into the circuit board 3. Specifically, the circuit board 3 is provided with insertion holes 31, and the connection conductor 11 is inserted and fixed in the insertion holes 31 to achieve stable insertion. The lower half of the terminal can be directly welded or inserted into the upper board, which is equally simple, saving cost and space.

[0080] Figure 3A cross-sectional view of the terminal assembly and the circuit board 3 in the first implementation manner of the embodiments of the present application is shown. The connecting conductor 11 is made of a rigid material. The pin 1 is rigidly connected to the circuit board 3 through the connecting conductor 11, which can ensure good connection strength between the pin 1, the connecting conductor 11 and the circuit board 3, and at the same time make the connection operation simpler and easier, with a fast connection speed and high working efficiency.

[0081] As Figure 3 shown, the housing 4 is sleeved on the outer peripheral side of a part of the pin 1 away from the connecting conductor 11, and the fixing member 2 is sleeved on the outer peripheral side of a part of the pin 1 close to the connecting conductor 11. The housing 4 and the fixing member 2 jointly wrap and fix the pin 1 inside, thereby achieving a good fixing effect on the pin 1. In the first implementation manner, both the pin 1 and the connecting conductor 11 extend in a straight line, and the connecting conductor 11 is coaxially arranged with the corresponding pin 1, so that there is good connection strength between the connecting conductor 11 and the pin 1. The connecting conductor 11 is perpendicular to the circuit board 3 and is inserted into the insertion hole 31 of the circuit board 3. The first end 111 of the connecting conductor 11 is connected to the pin, and the second end 112 of the connecting conductor 11 is located outside the fixing member 2, so as to be connected to the circuit board 3.

[0082] Figure 4 and Figure 5 A structural schematic diagram of the terminal assembly and the circuit board 3 in the second implementation manner of the embodiments of the present application is shown. In the second implementation manner, the connecting conductor 11 is also made of a rigid material. The pin 1 is rigidly connected to the circuit board 3 through the connecting conductor 11. As Figure 4 shown, the fixing member 2 has a bent structure, that is, a part of the fixing member 2 close to the circuit board 3 and a part away from the circuit board 3 are arranged at an angle. When an operator performs the plugging and unplugging operation on the terminal assembly and the circuit board 3, the operator can hold a part of the fixing member 2 away from the circuit board 3. Since the fixing member 2 has a bent structure, when the pin 1 is inserted into the circuit board 3, the fixing member 2 can reduce the blockage of the operator's line of sight, making it more convenient for the operator to observe the insertion position on the circuit board 3. At the same time, it is also more convenient for the operator to hold the fixing member 2.

[0083] As Figure 4 shown, the fixing member 2 includes a first section 21 and a second section 22. The first section 21 and the second section 22 are connected along the extending direction of the fixing member 2, and the first section 21 and the second section 22 are arranged at an obtuse angle. Correspondingly, the pin 1 is also bent at an obtuse angle, and the angle of the pin 1 is adapted to the angle of the fixing member 2, so that the pin 1 and the fixing member 2 extend in substantially the same direction.

[0084] In the third implementation mode of the embodiments of the present application, the connecting conductor 11 is also made of a rigid material, and the pin 1 is rigidly connected to the circuit board 3 through the connecting conductor 11. The connecting conductor 11 includes a buffer section, and the buffer section is a bent structure. By setting the buffer section as a bent structure, stress concentration can be reduced, stress can be lowered, and the tensile strength of the structure can be improved. Moreover, by setting the buffer section, tensile stress can also be alleviated, the fatigue of the connecting conductor 11 can be reduced, the mechanical properties can be improved, and the stability and lifespan of the structure can be enhanced.

[0085] In the third implementation mode, the bent structure of the buffer section includes a corner bent section, and the corner bent section is composed of two linearly connected straight sections in sequence. The ends of the two straight sections are connected to form a corner, and the angle of the corner is less than 180 degrees. Specifically, it can be an obtuse angle, and the angle can be the same as the angle of the corner formed when the fixing member 2 is bent. For example, the first section 21 and the second section 22 of the fixing member 2 are arranged at 120 degrees, and the angle of the corner of the bent structure of the buffer section is also 120 degrees correspondingly, and the two angles are arranged correspondingly, and thus they are bent at the same position.

[0086] Figure 6 The structural schematic diagram of the terminal assembly and the circuit board 3 in the fourth implementation mode of the embodiments of the present application is shown. Insertion posts are provided at the insertion positions of the circuit board 3. The insertion posts are perpendicular to the circuit board 3, and through holes are opened on the insertion posts. The through holes are opened along the extending direction of the insertion posts, and the connecting conductor 11 is inserted into the through holes along the extending direction of the through holes to achieve insertion.

[0087] As Figure 6 shown, the connecting conductor 11 is made of a rigid material and extends linearly. Specifically, the connecting conductor 11 has a cylindrical structure. Insertion posts are vertically provided at the insertion positions of the circuit board 3, and the insertion posts also extend linearly to form a cylindrical structure. A through hole is provided along the axial direction of the insertion post, and the diameter of the through hole is slightly larger than the outer diameter of the corresponding connecting conductor 11, so that the connecting conductor 11 can just be inserted into the corresponding through hole, and the connecting conductor 11 is fixed in the through hole by the frictional force between the outer wall of the connecting conductor 11 and the hole wall of the through hole to achieve insertion and fixation.

[0088] Figure 7 and Figure 8 The sectional views of the terminal assembly and the circuit board 3 in the first perspective and the second perspective in the fifth implementation mode of the embodiments of the present application are shown. The connecting conductor 11 is connected to the circuit board 3 through a crown spring connector 32, which can make the connection between the connecting conductor 11 and the circuit board 3 simple and reliable.

[0089] As Figure 7 and Figure 8As shown, the crown spring connector 32 includes a female socket, which is disposed on the circuit board 3. The connecting conductor 11 serves as a male connector. The connecting conductor 11 is inserted into the female socket, thereby achieving an electrical connection between the connecting conductor 11 and the circuit board 3. Specifically, a metal spiral sheet is provided in the female socket. The middle portion of the metal spiral sheet is radially inwardly contracted, that is, the aperture in the middle portion of the metal spiral sheet is smaller than the aperture at both ends. This allows the middle portion of the metal spiral sheet to exert a radially inward elastic force. When the connecting conductor 11 is inserted into the metal spiral sheet and passes through the middle portion of the metal spiral sheet, the middle portion of the metal spiral sheet can compress the connecting conductor 11 radially inward, thereby fixing the connecting conductor 11 in the female socket and achieving a stable connection.

[0090] Figure 9 The figure shows a schematic diagram of the structure of the terminal assembly and circuit board 3 according to the sixth embodiment of the present application. The connecting conductor 11 includes a plug connector 113, which is located at the end of the connecting conductor 11 away from the housing 4. The circuit board 3 is provided with a plug hole 31. The maximum diameter of the plug connector 113 is larger than the aperture of the plug hole 31. The maximum diameter of the plug connector 113 can produce elastic deformation along the radial direction of the plug connector 113. When the plug connector 113 is inserted into the plug hole 31, the hole wall of the plug hole 31 can press the plug connector 113 to fix the plug connector 113 therein, thereby achieving a removable plug-in connection between the connecting conductor 11 and the circuit board 3. The plug connector 113 can be roughly shuttle-shaped, with the diameter of the middle portion of the plug connector 113 being larger than the diameter of the two ends. In other words, the plug connector 113 is thin at both ends and thick in the middle, and the diameter of the thicker portion in the middle is larger than the aperture of the plug hole 31. The plug connector 113 can be surrounded by multiple strip-shaped metal sheets, so that the plug connector 113 has the ability to deform. The plug connector 113 is gradually inserted into the plug hole 31, and the plug connector 113 is subjected to the inward squeezing force of the hole wall of the plug hole 31, so that the plug connector 113 is compressed and deformed, and the plug connector 113 shrinks and becomes thinner toward the middle, and the outer wall of the plug connector 113 is pressed against the hole wall of the plug hole 31, thereby increasing the friction between the plug connector 113 and the plug hole 31, thereby fixing the plug connector 113 in the plug hole 31.

[0091] like Figure 9 As shown, in the sixth embodiment, each connecting conductor 11 is provided with a plug connector 113, which is inserted into the corresponding plug hole 31 to achieve electrical connection between the connecting conductor 11 and the circuit board 3. The plug connector 113 is provided on the end surface of the connecting conductor 11 away from the housing 4 and extends perpendicular to the end surface. The plug connector 113 is inserted vertically into the plug hole 31 on the circuit board 3. Specifically, the plug connector 113 can be a fisheye terminal.

[0092] Figure 10A cross-sectional view of the terminal assembly, circuit board 3, and housing 4 in an embodiment of the present application is shown. The pin 1 is disposed through the housing 4 such that one end away from the circuit board 3 is exposed outside the housing 4, and thus can be used to plug in a charging gun. By directly fixedly connecting the fixing member 2 to the housing 4, the housing 4 can support and fix the fixing member 2, and the weight of the fixing member 2 and components such as the pin 1 connected to the fixing member 2 is borne by the housing 4. Furthermore, the weight borne by the circuit board 3 can be reduced, and deformation and damage of the circuit board 3 caused by excessive weight bearing can be avoided. At the same time, by making the housing 4 bear the weight of components such as the fixing member 2 and the pin 1, the pin 1 can be fixed without relying on the circuit board 3, the impact force received by the pin 1 can be prevented from being transmitted to the circuit board 3, the good service life of the circuit board 3 can be ensured, and the good connection stability between the pin 1 and the circuit board 3 can be ensured.

[0093] As Figure 10 shown, a socket portion 41 is provided on the housing 4. The socket portion 41 is sleeved on the outer peripheral side of the terminal assembly, and the pin 1 is located in the space surrounded by the socket portion 41. The socket portion 41 is connected to the fixing member 2 to fix the fixing member 2 on the housing 4. By providing the socket portion 41, the fixing member 2 can be firmly fixed. By making the pin 1 located in the space surrounded by the socket portion 41, the pin 1 can be exposed to the external environment of the housing 4, and thus the charging gun can be plugged into the pin 1 to achieve charging.

[0094] The socket portion 41 and the housing 4 can be an integral structure, that is, the socket portion 41 is formed on the housing 4 synchronously when the housing 4 is manufactured, reducing the number of components and the installation difficulty. The socket portion 41 and the housing 4 can also be a split structure, that is, the socket portion 41 and the housing 4 are fixedly connected by means of bonding or clamping.

[0095] The socket portion 41 is formed by the housing 4 being recessed inward to form a groove. The outer wall of the housing 4 is a plane, and the part where the socket portion 41 is located is recessed inward to form a circular groove. The concave circular groove is the socket portion 41. An installation hole is provided in the bottom of the circular groove along the depth direction of the circular groove. The installation hole is used to be sleeved on the outer peripheral side of the pin 1, that is, the pin 1 passes through the housing 4 through the installation hole in the groove body of the circular groove. The fixing member 2 is fixed on the outer wall of the bottom of the socket portion 41. The fixing member 2 and the socket portion 41 are arranged opposite to each other along the depth direction of the circular groove and the axial direction of the pin 1 to achieve the firm connection between the fixing member 2 and the socket portion 41.

[0096] As Figure 10As shown, the socket part 41 is generally cylindrical, and the fixing part 2 is also generally cylindrical. The socket part 41 and the fixing part 2 are coaxially arranged, and the outer diameters of the formed cylinders are approximately equal. The fixing part 2 can be directly fixed on the socket part 41 through connection methods such as snap connection and adhesive bonding, so that the socket part 41 directly bears the weights of components such as the fixing part 2 and the pin 1. For example, snaps can be uniformly arranged on the fixing part 2 in the circumferential direction, and hooks can be correspondingly arranged on the socket part 41, and then a firm snap connection can be achieved through the cooperation of the hooks and the snaps. For another example, glue can also be evenly applied on the outer walls of the socket part 41 and the fixing part 2 in contact with each other, and then a fixed connection between the socket part 41 and the fixing part 2 can be achieved through the adhesive bonding method.

[0097] A second seal is provided between the socket part 41 and the fixing part 2. The second seal can be a sealing rubber ring, a sealing gasket, etc. One end of the second seal is sealed and abutted against the end face of the socket part close to the fixing part, and the other end of the second seal is sealed and abutted against the end face of the fixing part close to the socket part. The socket part 41 and the fixing part 2 press the second seal, thereby achieving a good sealing effect, preventing dust and moisture from entering through the gap between the socket part and the fixing part, and thus ensuring a good service life.

[0098] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above various methods can be freely combined and superimposed.

[0099] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in the technical field of the present application, several improvements and variations can be made without departing from the technical principle of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A terminal component, characterized in that, It includes a pin (1) and a fixing member (2). The pin (1) is used for rigid connection to a circuit board (3). The fixing member (2) is arranged on the outer peripheral side of the pin (1). The fixing member (2) is fixedly connected to the outer peripheral wall of the pin (1) to wrap at least a part of the pin (1) therein and form a fixation between different pins (1).

2. The terminal assembly according to claim 1, wherein The terminal assembly is used for installation on the housing of a charging pile, and the fixing member (2) is fixedly connected to the housing of the charging pile.

3. The terminal component according to claim 1, wherein The pin (1) is used for connection to the circuit board (3), and the fixing member (2) is of an integral structure to synchronously wrap and fix different pins (1) therein.

4. The terminal assembly according to claim 1, characterized in that, The fixing member (2) includes at least two connecting segments, and at least two of the connecting segments are detachably connected.

5. The terminal assembly according to claim 1, wherein The fixing member (2) is arranged on the part of the pin (1) close to the circuit board (3).

6. The terminal component according to claim 1, characterized in that, A plurality of through holes are formed in the fixing member (2), and the pins (1) are fixedly arranged in the through holes in a one-to-one correspondence.

7. The terminal component according to claim 1, characterized in that, The fixing member (2) is injection molded on the pin (1).

8. The terminal assembly according to claim 3, characterized in that, The terminal assembly includes a connecting conductor (11). The first end (111) of the connecting conductor (11) is connected to the pin (1), and the second end (112) of the connecting conductor (11) is located outside the fixing member (2) for connection to the circuit board (3).

9. The terminal component according to claim 8, wherein The pin (1) is rigidly connected to the circuit board (3) through the connecting conductor (11).

10. The terminal assembly according to claim 8, characterized in that, The connecting conductor (11) is made of a rigid material and is fixedly connected to the circuit board (3).

11. The terminal component according to claim 8, characterized in that, The connecting conductor (11) includes a buffer section, and at least a part of the buffer section is of a bent structure.

12. The terminal assembly according to claim 11, wherein, The bent structure includes an arc-shaped bent section and / or an angled bent section.

13. The terminal component according to any one of claims 1-12, characterized in that, At least a part of the fixing member (2) is of a bent structure.

14. The terminal component according to claim 13, wherein, The fixing member (2) includes a first section (21) and a second section (22). The first section (21) and the second section (22) are connected along the extending direction of the fixing member (2), and the first section (21) and the second section (22) are arranged at an obtuse angle.

15. The terminal component according to claim 8, wherein The connecting conductor (11) is connected to the circuit board (3) through a crown spring connector (32).

16. The terminal component according to claim 8, wherein The connecting conductor (11) and the circuit board (3) are detachably plugged.

17. The terminal assembly according to claim 16, wherein, The connecting conductor (11) includes a plug joint (113). A plug hole (31) is arranged on the circuit board (3). The maximum diameter of the plug joint (113) is greater than the aperture of the plug hole (31). The maximum diameter of the plug joint (113) can elastically deform along the radial direction of the plug joint (113) so that when the plug joint (113) is inserted into the plug hole (31), the hole wall of the plug hole (31) can press the plug joint (113) to fix the plug joint (113) therein.

18. The terminal component according to claim 8, characterized in that, A first sealing member is arranged at the connection between the connecting conductor (11) and the circuit board (3).

19. A charging pile, characterized in that, It includes the terminal assembly according to any one of claims 1 - 18.

20. The charging pile according to claim 19, wherein, The charging pile includes a housing (4), the pin (1) is arranged through the housing (4), and the fixing member (2) is fixedly connected to the housing (4).

21. The charging pile according to claim 20, wherein A socket part (41) is arranged on the housing (4), the socket part (41) is sleeved on the outer peripheral side of the terminal assembly, the pin (1) is located in the space surrounded by the socket part (41), and the socket part (41) is fixedly connected to the fixing member (2) to fix the fixing member (2) on the housing (4).

22. The charging pile according to claim 21, wherein, A second sealing member is clamped between the socket part (41) and the fixing member (2).

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