Electric connector

Abstract

The utility model discloses an electric connector, relates to the connector technical field, the electric connector comprises a housing and a plurality of terminal modules, the housing comprises a pedestal and a plurality of protruding parts, the plurality of protruding parts are arranged on one surface of the pedestal at intervals, the housing is provided with a plurality of through holes, and one through hole passes through one protruding part and the pedestal; each terminal module comprises a tubular metal terminal, an insulating column, an annular terminal and an insulating part, one tubular metal terminal penetrates through one through hole, the insulating part is arranged on the end face, away from the base, of the tubular metal terminal, the tubular metal terminal is provided with a containing cavity with two through ends, one end of the insulating column is connected to the cavity wall of the containing cavity, and the other end of the insulating column is connected to the annular terminal. One end of the insulating column is arranged in the accommodating cavity and divides the accommodating cavity into a first accommodating cavity and a second accommodating cavity, the other end of the insulating column extends from the cavity wall to an opening of the first accommodating cavity, and the annular terminal is arranged in the first accommodating cavity. The electric connector provided by the utility model aims to prevent fingers from electric shock.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an electrical connector. Background Technology

[0002] Electrical connectors are typically used at the power output end. They are interface components that transmit electrical energy from power modules (such as uninterruptible power supplies, battery packs, and distribution cabinets) to downstream devices. They are commonly used to distribute main power to various electrical devices.

[0003] Existing electrical connectors, including male or female connectors, typically enclose metal terminals in an insulating housing. Because they need to be plugged into other electrical connectors, the insulating housing is usually open. Server engineers may accidentally touch the metal terminals during the plugging process, posing a risk of electric shock, especially in the high-current, high-voltage power supply field of servers, where the danger is even greater. Utility Model Content

[0004] The main purpose of this invention is to provide an electrical connector designed to prevent electric shock to the fingers.

[0005] To achieve the above objectives, the present invention provides an electrical connector comprising a housing and multiple terminal modules. The housing includes a base and multiple protrusions, the protrusions being spaced apart on one surface of the base. The housing has multiple through holes, one of which penetrates one of the protrusions and the base. Each terminal module includes a tubular metal terminal, an insulating post, an annular terminal, and an insulating element. The tubular metal terminal passes through one of the through holes. The insulating element is disposed on one end face of the tubular metal terminal away from the base. The tubular metal terminal has a receiving cavity extending through both ends. One end of the insulating post is connected to the cavity wall of the receiving cavity, dividing the receiving cavity into a first receiving cavity and a second receiving cavity. The other end of the insulating post extends from the cavity wall toward the opening of the first receiving cavity. The annular terminal is disposed in the first receiving cavity.

[0006] In one embodiment, the other end of the insulating post extends beyond and is exposed beyond the annular terminal, without protruding from the corresponding protrusion.

[0007] In one embodiment, one of the insulating element and the tubular metal terminal has a barb, and the other has a slot. The barb is engaged in the slot to connect the insulating element and the tubular metal terminal.

[0008] In one embodiment, the outer shell further includes two protruding plates, which are respectively disposed on opposite sides of a surface of the base along its length, and the two protruding plates and the outer wall of the plurality of protrusions enclose each other to form a groove.

[0009] The height of the convex plate accounts for more than 10% and less than or equal to 70% of the height of the protrusion.

[0010] In one embodiment, a gap is formed between the tubular metal terminal and the wall of the through hole;

[0011] The outer wall of the tubular metal terminal is provided with a first protrusion, and the wall of the through hole is provided with a second protrusion, with the first protrusion abutting against the second protrusion.

[0012] The outer wall of the tubular metal terminal is provided with a groove, which is located on the other side of the second boss relative to the first boss. A stop is provided in the groove, and the wall of the through hole abuts against the stop and the bottom of the groove.

[0013] In one embodiment, the insulating post is threadedly connected to the cavity wall of the receiving cavity of the tubular metal terminal.

[0014] In one embodiment, the electrical connector further includes a fastener, and a U-shaped baffle is provided on one side wall of the base. The fastener is rotatably connected to the two side plates of the U-shaped baffle via a pivot, and one end of the fastener is exposed on one surface of the base.

[0015] In one embodiment, an elastic element is connected between the other end of the fastener and a side wall of the housing, the elastic element being used to push the other end of the fastener away from the side wall of the housing;

[0016] And / or, the number of the fastener and the U-shaped baffle are both two, with one fastener and one U-shaped baffle disposed on one side wall of the base.

[0017] In one embodiment, the number of protrusions is greater than or equal to four.

[0018] And / or, the overall thickness of the electrical connector is greater than or equal to 22mm and less than or equal to 40mm.

[0019] And / or, the outer wall of the protrusion is provided with a guide groove or a guide protrusion, and the guide groove or the guide protrusion extends along the axial direction of the protrusion.

[0020] This utility model also proposes an electrical connector, including a housing, multiple tubular metal terminals, multiple annular insulating crowns, and a hook. One surface of the housing has multiple through holes; each of the tubular metal terminals is embedded in one of the through holes, and each of the tubular metal terminals has a through axial hole at its axis; an annular insulating crown is disposed at one end of one of the tubular metal terminals; and the hook is disposed on one side surface of the housing.

[0021] The electrical connector of this utility model includes a housing and multiple terminal modules. The housing includes a base and multiple protrusions, with multiple through holes penetrating the housing. Each through hole contains a terminal module. Each terminal module includes a tubular metal terminal, an insulating post, an annular terminal, and an insulating element. The insulating post is connected to the inner wall of the tubular metal terminal, the insulating element is disposed on the end face of the tubular metal terminal, and the annular terminal is disposed on the cavity wall of the first receiving cavity. Current is mainly conducted through the tubular metal terminal and the annular terminal. The insulating element disposed on the end face of the tubular metal terminal and the insulating post in the middle can prevent accidental insertion of fingers and electric shock. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the electrical connector provided by this utility model;

[0024] Figure 2 A schematic diagram of another embodiment of the electrical connector provided by this utility model;

[0025] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0028] Figure 6 A schematic diagram of another embodiment of the electrical connector provided by this utility model;

[0029] Figure 7 A schematic diagram of another embodiment of the electrical connector provided by this utility model;

[0030] Figure 8 for Figure 7 Cross-sectional view at point BB.

[0031] Explanation of icon numbers:

[0032] 100. Electrical connector; 1. Housing; 11. Base; 111. U-shaped baffle; 12. Protrusion; 121. Guide protrusion; 13. Surface plate; 14. Second protrusion; 15. Guide groove; 2. Terminal module; 21. Tubular metal terminal; 211. Barb; 212. Gap; 213. First protrusion; 214. Groove; 215. Stop; 22. Insulating post; 23. Ring terminal; 24. Insulating component; 241. Slot; 3. Fastener; 31. Elastic component; 4. Ring insulating crown; 5. Hook.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Unless otherwise stated, Figures 1 to 8 It is drawn to a true and accurate scale, and the relative size and position of the components in the drawing should be considered part of the instruction manual.

[0037] Electrical connectors are typically used at the power output end. They are interface components that transmit electrical energy from power modules (such as uninterruptible power supplies, battery packs, and distribution cabinets) to downstream devices. They are commonly used to distribute main power to various electrical devices.

[0038] Existing electrical connectors, including male or female connectors, typically enclose metal terminals in an insulating housing. Because they need to be plugged into other electrical connectors, the insulating housing is usually open. Server engineers may accidentally touch the metal terminals during the plugging process, posing a risk of electric shock, especially in the high-current, high-voltage power supply field of servers, where the danger is even greater.

[0039] This invention proposes an electrical connector designed to prevent electric shock to fingers.

[0040] Please see Figures 1 to 5 In one embodiment of the present invention, the electrical connector 100 includes a housing 1 and a plurality of terminal modules 2. The housing 1 includes a base 11 and a plurality of protrusions 12. The plurality of protrusions 12 are spaced apart on one surface of the base 11. The housing 1 has a plurality of through holes, one through hole passing through a protrusion 12 and the base 11. Each terminal module 2 includes a tubular metal terminal 21, an insulating post 22, an annular terminal 23 and an insulating member 24. A tubular metal terminal 21 passes through a through hole. The insulating member 24 is disposed on one end face of the tubular metal terminal 21 away from the base 11. The tubular metal terminal 21 has a receiving cavity through both ends. One end of the insulating post 22 is connected to the cavity wall of the receiving cavity and divides the receiving cavity into a first receiving cavity and a second receiving cavity. The other end of the insulating post 22 extends from the cavity wall to the opening of the first receiving cavity. The annular terminal 23 is disposed in the first receiving cavity.

[0041] In this embodiment, the electrical connector 100 is used as a wire end. The outer shell 1 is made of an insulating material, such as hard plastic or hard rubber, to prevent current leakage through the outer shell 1 and causing short circuits or other problems. The outer shell 1 includes a base 11 and multiple protrusions 12. The base 11 and the multiple protrusions 12 can be integrally formed by injection molding or connected as a whole by bonding or ultrasonic welding, etc., without further limitation. The tubular metal terminal 21 has a tubular structure with a through-hole inside. The specific material can be copper or aluminum, etc. The tubular metal terminal 21 passes through the through hole. The connection between the tubular metal terminal 21 and the hole wall can be a snap-fit ​​connection or a plug-in connection. The insulating post 22 passes through the cavity of the tubular metal terminal 21 and is connected to the cavity wall. Further, one end of the insulating post 22 is detachably connected to the cavity wall, and the specific connection method can be a threaded connection or a plug-in connection, etc. The insulating post 22 is made of insulating material such as silicone or rubber to prevent electric shock caused by accidental contact with fingers. One end of the insulating post 22 is connected to the cavity wall of the receiving cavity, thereby dividing the receiving cavity inside the tubular metal terminal 21 into a first receiving cavity and a second receiving cavity. The other end of the insulating post 22 extends from the cavity wall into the opening of the first receiving cavity, which is used to insert another electrical connector. The annular terminal 23 is disposed on the cavity wall of the first receiving cavity. The second receiving cavity is used to solder electrical connection wires to realize current input or output. One side of the through hole is open for inserting another electrical connector 100. An insulating element 24 is provided on the end face of the tubular metal terminal 21 facing the opening. The insulating element 24 is an annular structure of insulating material, such as a silicone ring or a rubber ring, to prevent electric shock caused by accidental contact with the end face of the tubular metal terminal 21.

[0042] The annular terminal 23 specifically comprises two metal rings and multiple arc-shaped metal strips connecting the two metal rings. It can be understood that the multiple metal strips are all bent towards the central axis of the first receiving cavity to clamp other connecting terminals inserted into the tubular metal terminal 21, thereby achieving current conduction. The connection between the annular terminal 23 and the cavity wall of the first receiving cavity can be achieved by snap-fitting or welding, or by providing two stepped surfaces at intervals on the cavity wall, clamping the two ends of the annular terminal 23 between the two stepped surfaces to limit the relative position of the annular terminal 23 and the tubular metal terminal 21.

[0043] The electrical connector 100 of this utility model includes a housing 1 and multiple terminal modules 2. The housing 1 includes a base 11 and multiple protrusions 12. Multiple through holes penetrate the housing 1, and a terminal module 2 is disposed in each through hole. Each terminal module 2 includes a tubular metal terminal 21, an insulating post 22, an annular terminal 23, and an insulating element 24. The insulating post 22 is connected to the inner wall of the tubular metal terminal 21, the insulating element 24 is disposed on the end face of the tubular metal terminal 21, and the annular terminal 23 is disposed on the cavity wall of the first receiving cavity. The current is mainly conducted through the tubular metal terminal 21 and the annular terminal 23. The insulating element 24 disposed on the end face of the tubular metal terminal 21 and the insulating post 22 in the middle can prevent accidental insertion of fingers and electric shock.

[0044] In an embodiment of this utility model, the other end of the insulating post 22 extends beyond and is exposed in the annular terminal 23, without protruding from the corresponding protrusion 12.

[0045] In this embodiment, in order to prevent electric shock caused by inserting a finger into the gap between the insulating post 22 and the annular terminal 23, the length of the insulating post 22 should exceed the position of the annular terminal 23, but not be exposed outside the corresponding protrusion 12. In a preferred embodiment, the end face of the insulating post 22 facing the opening is flush with the end face of the tubular metal terminal 21. When a finger accidentally touches the opening, it will first contact the insulating part 24 on the end face of the insulating post 22 or the end face of the tubular metal terminal 21, and will not directly touch the conductive material, thus reducing the risk of electric shock.

[0046] In an embodiment of the present invention, one of the insulating member 24 and the tubular metal terminal 21 is provided with a barb 211, and the other is provided with a slot 241. The barb 211 is engaged in the slot 241 to connect the insulating member 24 and the tubular metal terminal 21.

[0047] In this embodiment, the insulating member 24 is made of an insulating material such as silicone or rubber, while the tubular metal terminal 21 is made of a metal material such as copper or aluminum. The connection between the two can be achieved by having a barb 211 on one side and a slot 241 on the other, so that the barb 211 is engaged in the slot 241, thereby connecting the insulating member 24 to the end face of the tubular metal terminal 21. It is understood that in other embodiments, the insulating member 24 and the tubular metal terminal 21 can also be connected by adhesive bonding or an interference fit to connect the insulating member 24 to the end face of the tubular metal terminal 21.

[0048] In an embodiment of this utility model, the outer shell 1 further includes two protruding plates 13, which are respectively disposed on opposite sides of a surface of the base 11 along the length direction. The two protruding plates 13 and the outer wall of a plurality of protrusions 12 enclose each other to form a groove.

[0049] The height of the protruding plate 13 accounts for more than 10% and less than or equal to 70% of the height of the protruding part 12.

[0050] In this embodiment, the base 11 has a protruding plate 13 on each side of the surface of the protrusion 12 along the length direction. The two protruding plates 13 and the protrusion 12 in the middle surround to form a groove. The two ends of the groove are open in the length direction. The groove is used to accommodate the insertion part of the external electrical connector 100 so that the insertion connection between the two electrical connectors 100 is more stable.

[0051] The ratio of the height of the protruding plate 13 to the height of the protruding part 12 should be greater than or equal to 10% and less than or equal to 50% or 70%, for example, 10%, 20%, 30%, 40%, 50%, 70%, or any value within the above range. The ratio should not be too small, as this will cause unstable connection between the two electrical connectors 100, leading to electrical connection failure and power outages. Similarly, the ratio should not be too large, as this will result in material waste and excessively deep grooves, causing the connection between the two electrical connectors 100 to be too tight and difficult to insert or remove.

[0052] In an embodiment of this utility model, a gap 212 is formed between the tubular metal terminal 21 and the wall of the through hole;

[0053] The outer wall of the tubular metal terminal 21 is provided with a first boss 213, and the wall of the through hole is provided with a second boss 14. The first boss 213 abuts against the second boss 14.

[0054] The outer wall of the tubular metal terminal 21 is provided with a groove 214. The groove 214 is located on the other side of the second boss 14 relative to the first boss 213. A stop member 215 is provided in the groove 214. The wall of the through hole abuts against the stop member 215 and the bottom of the groove 214.

[0055] In this embodiment, the specific connection between the tubular metal terminal 21 and the wall of the through hole is as follows: the outer wall of the tubular metal terminal 21 has a first boss 213 protruding from it, and the wall of the through hole has a second boss 14 protruding from it. The first boss 213 abuts against the second boss 14. The outer wall of the tubular metal terminal 21 has a groove 214, which is located on the other side of the second boss 14 relative to the first boss 213. A stop 215 is provided in the groove 214. The wall of the through hole abuts against the stop 215 and the bottom of the groove 214. The first boss 213 and the stop 215 in the groove 214 are located on opposite sides of the second boss 14. The first boss 213 and the stop 215 work together to limit the relative position between the tubular metal terminal 21 and the wall of the through hole in the axial direction. The stop 215 can be an O-ring or a C-shaped rubber strip, etc., to increase the friction between the tubular metal terminal 21 and the wall of the through hole and prevent relative displacement between them.

[0056] In an embodiment of this utility model, the insulating post 22 is threadedly connected to the cavity wall of the receiving cavity of the tubular metal terminal 21.

[0057] In this embodiment, the outer surface of the insulating post 22 is machined with external threads, and the cavity wall of the receiving cavity of the tubular metal terminal 21 is machined with internal threads. The tightening action of the internal and external threads connects the insulating post 22 to the cavity wall of the tubular metal terminal 21, thus fixing the insulating post 22 to the cavity wall. No additional adhesive or snap-fit ​​structure is required, simplifying the assembly process. This also ensures that the relative position of the insulating post 22 and the metal terminal is fixed, preventing the insulating post 22 from shifting and creating an excessively large gap on one side, allowing a finger to be inserted and touch the annular terminal 23, resulting in electric shock. The threaded connection provides a more durable fixing effect through mechanical engagement, maintaining a stable connection even under high temperature or vibration environments. Furthermore, the threaded connection facilitates disassembly and maintenance, reducing the overall replacement cost due to damage to the fixing structure.

[0058] In an embodiment of this utility model, the electrical connector 100 further includes a fastener 3. A U-shaped baffle 111 is provided on one side wall of the base 11. The fastener 3 is rotatably connected to the two side plates of the U-shaped baffle 111 via a rotating shaft. One end of the fastener 3 is exposed on one surface of the base 11.

[0059] In this embodiment, the electrical connector 100 has a U-shaped baffle 111 on one side wall of the base 11, and a fastener 3 that is rotatably connected to the two side plates of the U-shaped baffle 111. One end of the fastener 3 is exposed on a surface of the base 11 where the protrusion 12 is provided, and is used to fasten with another electrical connector 100 to improve the connection strength between the two connectors and prevent accidental operation that could pull them apart and cause electrical connection failure. The fastener 3 is connected to the two side plates of the U-shaped baffle 111 through a shaft hole engagement, which allows the fastener 3 to rotate relative to the U-shaped baffle 111, thereby achieving the effect of fastening and unfastening with the other electrical connector 100.

[0060] In an embodiment of this utility model, an elastic element 31 is connected between the other end of the fastener 3 and one side wall of the outer shell 1. The elastic element 31 is used to push the other end of the fastener 3 away from the side wall of the outer shell 1.

[0061] And / or, there are two fasteners 3 and two U-shaped baffles 111, with one fastener 3 and one U-shaped baffle 111 located on one side wall of the base 11.

[0062] In this embodiment, the fastener 3 is integrally formed from a metal using processes such as punching or stamping. From head to tail, the fastener 3 sequentially includes a pressing part, a necking part, a connecting part, a turning part, and a connecting frame. The pressing part is cylindrical and hollow, with a space inside to accommodate an elastic element 31, such as a spring. One end of the elastic element 31 is embedded in the hollow pressing part, and the other end is embedded in a shallow groove in the side wall of the base 11. The connecting part has left and right arms that are vertically bent towards the base 11, respectively connected to its left and right sides. Through holes on the left and right arms are rotatably connected to the two side plates of the U-shaped baffle 111 via pivots. The turning part includes two right-angle turns. The connecting frame includes a rectangular through hole for the hook 5 of another connector to be inserted and fixed. The connecting frames of the two fasteners 3 are respectively positioned at the two open ends of the groove along its length and do not protrude from the protruding plate 13. One end of the fastener 3 is used to engage with another electrical connector 100, and the other end of the fastener 3 is provided with an elastic element 31 between it and one side wall of the housing 1. In the initial state, both ends of the fastener 3 are on the same horizontal plane. Pressing down the other end of the fastener 3 compresses the elastic element 31, and one end of the fastener 3 rises away from the side wall of the base 11. At this time, the electrical connector 100 is in the unlocked state, and another electrical connector 100 can be inserted into this electrical connector 100. After releasing, the elastic element 31 returns to its original shape, pushing the other end of the fastener 3 toward the side wall away from the housing 1, so that one end of the fastener 3 descends and approaches the side wall of the base 11, and engages with the other electrical connector 100 to improve the connection stability between the two.

[0063] In one example, in order to further improve the connection stability between the two electrical connectors 100, a U-shaped baffle 111 and a fastener 3 are respectively provided on the two side walls of the base 11, so that the connection on both sides of the base 11 is synchronized and stable, and the electrical connection failure caused by unilateral misalignment is prevented.

[0064] In embodiments of this utility model, the number of protrusions 12 is greater than or equal to 4.

[0065] And / or, the overall thickness of the electrical connector 100 is greater than or equal to 22 mm and less than or equal to 40 mm.

[0066] And / or, the outer wall of the protrusion 12 is provided with a guide groove 15 or a guide protrusion 121, the guide groove 15 or the guide protrusion 121 extending along the axial direction of the protrusion 12.

[0067] In this embodiment, the number of protrusions 12 is greater than or equal to four, for example, four, five, or seven or more. The number of protrusions 12 can be the same as the number of terminal modules 2. Multiple terminal modules 2 can carry a larger current, realizing high current transmission between the two electrical connectors 100. The diameter of each protrusion 12 is the same. However, if needed, auxiliary protrusions with smaller diameters and lower heights can be provided separately for signal transmission.

[0068] In one example, the overall thickness of the electrical connector 100 is greater than or equal to 22mm and less than or equal to 40mm, such as 22mm, 26mm, 30mm, 40mm or any value within the above range. The overall thickness of the electrical connector 100 should not be too small, otherwise the internal terminal module 2 will be too thin and unable to carry a large current. The overall thickness of the electrical connector 100 should also not be too large, otherwise it will not be compatible with the server.

[0069] In one example, to facilitate the insertion and connection of this electrical connector 100 with other electrical connectors 100, this electrical connector 100 is provided with a guide groove 15 or a guide protrusion 121 on the outer wall of the protrusion 12, which serves to guide and limit the insertion direction, and also serves to mark the positive and negative directions.

[0070] Please see Figures 6 to 8 This utility model also proposes an electrical connector 100 for use on a board, including a housing 1, a plurality of tubular metal terminals 21, a plurality of annular insulating crowns 4 and a hook 5. A plurality of through holes are opened on one surface of the housing 1; each tubular metal terminal 21 is embedded in a through hole, and each tubular metal terminal 21 has a through axial through hole opened on its axis; an annular insulating crown 4 is provided at one end of a tubular metal terminal 21; and a hook 5 is provided on one side surface of the housing 1.

[0071] In this embodiment, the outer shell 1 is made of an insulating material, such as hard plastic or hard rubber, to prevent current leakage through the outer shell 1 and causing short circuits. Multiple through holes are provided inside the outer shell 1. The tubular metal terminal 21 is a tubular structure with through holes inside. The material can be copper or aluminum, etc. The tubular metal terminal 21 passes through the through holes. The connection between the tubular metal terminal 21 and the hole wall can be a snap-fit ​​connection or a plug-in connection. An annular insulating crown 4 is provided at one end of the tubular metal terminal 21. The annular insulating crown 4 is an annular structure made of insulating material, such as a silicone ring or a rubber ring, to prevent electric shock caused by accidental contact with the end face of the tubular metal terminal 21. The connection between the annular insulating crown 4 and the tubular metal terminal 21 can be achieved by having a barb 211 on one side and a groove 241 on the other, so that the barb 211 is engaged in the groove 241, thereby connecting the annular insulating crown 4 to the end face of the tubular metal terminal 21. It is understood that, in other embodiments, the annular insulating crown 4 and the tubular metal terminal 21 may also be connected by adhesive bonding or interference fit snap-fit ​​to connect the annular insulating crown 4 to the end face of the tubular metal terminal 21.

[0072] The tubular metal terminal 21 also has a through hole, and the outer shell 1 has a hook 5 on one side. When the electrical connector 100 at the wire end is plugged into the electrical connector 100 at the board end, the insulating post 22 is inserted into the through hole of the tubular metal terminal 21 of the electrical connector 100 at the board end, and the annular terminal 23 of the electrical connector 100 at the wire end abuts against the outer wall of the tubular metal terminal 21 of the electrical connector 100 at the board end to realize the conduction of current. The fastener 3 of the electrical connector 100 at the wire end is engaged with the hook 5 of the electrical connector 100 at the board end to improve the connection strength between the two.

[0073] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electrical connector, characterized in that, The electrical connector includes: The housing includes a base and a plurality of protrusions, the protrusions being spaced apart on one surface of the base. The housing has a plurality of through holes, one of which penetrates one of the protrusions and the base. Multiple terminal modules are provided, each terminal module including a tubular metal terminal, an insulating post, an annular terminal and an insulating element. One of the tubular metal terminals is disposed through a through hole. The insulating element is disposed on the end face of the tubular metal terminal opposite to the base. The tubular metal terminal has a receiving cavity through both ends. One end of the insulating post is connected to the cavity wall of the receiving cavity and divides the receiving cavity into a first receiving cavity and a second receiving cavity. The other end of the insulating post extends from the cavity wall to the opening of the first receiving cavity. The annular terminal is disposed in the first receiving cavity.

2. The electrical connector as claimed in claim 1, characterized in that, The other end of the insulating post extends beyond and is exposed beyond the annular terminal, without protruding from the corresponding protrusion.

3. The electrical connector as described in claim 1, characterized in that, One of the insulating component and the tubular metal terminal has a barb, and the other has a slot. The barb is engaged in the slot to connect the insulating component and the tubular metal terminal.

4. The electrical connector as claimed in claim 1, characterized in that, The outer shell also includes two protruding plates, which are respectively disposed on opposite sides of a surface of the base along the length direction. The two protruding plates and the outer wall of the plurality of protrusions enclose each other to form a groove. The height of the convex plate accounts for more than 10% and less than or equal to 70% of the height of the protrusion.

5. The electrical connector as claimed in claim 1, characterized in that, A gap is formed between the tubular metal terminal and the wall of the through hole; The outer wall of the tubular metal terminal is provided with a first protrusion, and the wall of the through hole is provided with a second protrusion, with the first protrusion abutting against the second protrusion. The outer wall of the tubular metal terminal is provided with a groove, which is located on the other side of the second boss relative to the first boss. A stop is provided in the groove, and the wall of the through hole abuts against the stop and the bottom of the groove.

6. The electrical connector as claimed in claim 1, characterized in that, The insulating post is threadedly connected to the cavity wall of the receiving cavity of the tubular metal terminal.

7. The electrical connector as claimed in any one of claims 1 to 6, characterized in that, The electrical connector also includes a fastener. A U-shaped baffle is provided on one side wall of the base. The fastener is rotatably connected to the two side plates of the U-shaped baffle via a pivot. One end of the fastener is exposed on one surface of the base.

8. The electrical connector as claimed in claim 7, characterized in that, An elastic element is connected between the other end of the fastener and one side wall of the housing, and the elastic element is used to push the other end of the fastener away from the side wall of the housing; And / or, the number of the fastener and the U-shaped baffle are both two, with one fastener and one U-shaped baffle disposed on one side wall of the base.

9. The electrical connector as claimed in any one of claims 1 to 6, characterized in that, The number of protrusions is greater than or equal to four; And / or, the overall thickness of the electrical connector is greater than or equal to 22mm and less than or equal to 40mm; And / or, the outer wall of the protrusion is provided with a guide groove or a guide protrusion, and the guide groove or the guide protrusion extends along the axial direction of the protrusion.

10. An electrical connector, characterized in that, The electrical connector includes: The outer casing has multiple through holes on one surface; Multiple tubular metal terminals, each of which is embedded in a through hole, and each of which has a through axial hole at its axis. Multiple annular insulating crowns, one of which is disposed at one end of one of the tubular metal terminals; and A latch is provided on one side surface of the housing.

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