Electrical connector and electrical connection kit

Abstract

The utility model relates to the field of application connection of lithium ion batteries, in particular to an electric connecting piece and an electric connecting kit. The electric connector comprises a conductor tube body, and an elastic sheet tube made of a conductor material is accommodated in a tube cavity of the conductor tube body; the elastic sheet tube comprises at least three annular sections and a plurality of contact elastic sheet sections; one contact elastic sheet section is arranged between any two adjacent annular sections at intervals, each contact elastic sheet section comprises a plurality of independent contact elastic sheets, two ends of each contact elastic sheet are respectively connected with the two annular sections or are integrated with the two annular sections, and the contact elastic sheets are sequentially distributed along the edges of the two annular sections. At least one position of each contact elastic piece section bends and extends towards the direction of the central shaft, each contact elastic piece section can elastically deform in the radial direction under the action of external force, and when a conductor male piece is inserted into the elastic piece pipe, the outer wall of the conductor male piece is in contact with the portion, closest to the central shaft, of each contact elastic piece section. Under the pressure effect of the conductor male piece, each contact elastic sheet section elastically deforms outwards in the radial direction, and the periphery of each annular section is tightly attached to the inner wall of the conductor tube body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the application connection field of lithium ion battery, especially to a kind of electric connector and electric connection suite. BACKGROUND

[0002] With the more and more widely application of lithium ion battery equipment, the equipment using lithium ion battery is more and more, and people gradually improve the requirement to the connecting device between lithium ion battery and equipment, and the connecting device between battery and charger, and the requirement is higher and higher.

[0003] The utility model discloses the inventor finds that the connector of prior art has the defect of easy loosening, which is not conducive to use. SUMMARY

[0004] One of the purposes of the utility model embodiment is to provide an electric connector and electric connection suite, which is beneficial to improve the reliability of electric connector connection.

[0005] In the first aspect, the utility model provides an electric connector, which comprises a conductor pipe body, and a spring pipe made of a conductor material is arranged in the lumen of the conductor pipe body.

[0006] The spring pipe comprises at least three annular segments and a plurality of contact spring segments.

[0007] Each of the contact spring segments is spaced apart from the adjacent two annular segments by one contact spring segment.

[0008] Each contact spring segment comprises a plurality of independent contact springs, and the two ends of each contact spring are connected to or integrated with the two annular segments.

[0009] Under the action of external force, each contact spring segment can elastically deform radially.

[0010] Optionally, in each contact spring segment, there is a gap between the two laterally adjacent contact springs.

[0011] Optionally, the gaps are the same, and the width of each gap is the same.

[0012] Optionally, a rear seat made of conductor material is arranged at the rear end of the conductor pipe body, the rear seat blocks the rear end of the pipe cavity of the conductor pipe body,

[0013] A protective end is arranged at the front end of the conductor pipe body, the inner diameter of the protective end is smaller than the inner diameter of the annular section of the pellet pipe and larger than the inner diameter of the narrowest part of the pellet pipe,

[0014] The pellet pipe is limited between the rear seat and the protective end.

[0015] Optionally, when the conductor male element is inserted into the pellet pipe, the front and rear ends of the pellet pipe are tightly attached to the rear seat and the protective end respectively.

[0016] Optionally, the rear seat and the conductor pipe body are screwed together.

[0017] Optionally, a cylindrical protrusion matching the pipe cavity of the conductor pipe body is arranged at the front end of the rear seat, an external thread is arranged at the outer periphery of the cylindrical protrusion,

[0018] An internal thread is arranged at the inner periphery of the rear end of the pipe cavity, when the rear seat and the pipe cavity are screwed together, the cylindrical protrusion is located in the pipe cavity.

[0019] Optionally, when the rear seat and the pipe cavity are screwed together, the front end surface of the cylindrical protrusion abuts against the rear end of the pellet pipe, and the front end of the pellet pipe abuts against the protective end.

[0020] Optionally, when no conductor male element is inserted, the distance between each contact pellet and the central axis gradually decreases from the two ends to the middle part, the inner wall and the outer wall of each contact pellet are curved respectively, and each contact pellet is symmetrical relative to the central axis.

[0021] In the second aspect, the utility model provides an electric connection kit, characterized by comprising,

[0022] The first electric connection element is any one of the electric connection elements described above,

[0023] The second electric connection element is a conductor male element, the outer diameter of the conductor male element is larger than the inner diameter of the narrowest part of the pellet pipe of the first electric connection element and larger than or equal to the inner diameter of the widest part of the pellet pipe,

[0024] When the conductor male element is inserted into the pellet pipe, the outer wall of the conductor male element contacts the part of each contact pellet section closest to the central axis respectively, and each contact pellet section elastically deforms radially outward under the pressure of the conductor male element, and the outer periphery of each annular section is tightly attached to the inner wall of the conductor pipe body.

[0025] From the above, relative to the straight pipe type conductive female connector of the prior art, when the conductive connector of the embodiment is connected with the conductive male element, the elastic tube of the electric connector of the embodiment as the conductive female connector is elastically deformed, and under the elastic force, multiple parts of the elastic tube are tightly pressed against the inserted conductive male element, the contact between the connectors is more compact, and the contact stability and reliability are better.

[0026] In addition, the outer wall of the outer periphery of each annular segment of the elastic tube is tightly pressed against the inner wall of the conductive tube body, and under the elastic force of each elastic segment, there is a relative radial pressure between each annular segment and the inner wall of the conductive tube body, and the contact degree of the two is more compact, and the contact stability and reliability are better.

[0027] Compared with the technical solution of providing strip-shaped elastic pieces in the conductive tube body, the strip-shaped elastic pieces have the defects of easy wear and short service life. The elastic tube of the embodiment is composed of multiple continuous annular segments and multiple contact elastic segments, each contact elastic segment is spaced between two annular segments, and each contact elastic segment is composed of multiple independent contact elastic pieces in a discontinuous annular shape (or intermittent annular shape). The two annular segments at both ends of the elastic segment have relatively low rigidity and low deformability because they are continuous annular, can limit the two ends of each contact elastic piece, avoid excessive deformation of each contact elastic piece, and prevent the elastic deformation from being too large and causing damage, which is beneficial to limiting the elastic deformation of each contact elastic piece, ensuring close contact with the inserted conductive male element, and making the elastic tube more durable and reliable. In the embodiment, each contact elastic piece in each contact elastic segment surrounds the central axis and contacts the periphery of the inserted conductive male element, which is more closely contacted with the conductive male element, has a larger contact area, and is beneficial to reducing the contact resistance of the electric connector and the heat generation of the electric connector.

[0028] In summary, the electric connector of the embodiment has more stable and reliable contact, smaller internal resistance, and is beneficial to reducing the temperature of the electric connector. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, do not limit the present application.

[0030] Figure 1 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, do not limit the present application.

[0031] Figure 2 The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, do not limit the present application.

[0032] Figure 3The utility model provides an electric connector's pipe orifice structure schematic diagram provided for the embodiment of the utility model,

[0033] Figure 4 The utility model provides an electric connector's axial section structure schematic diagram provided for the embodiment of the utility model,

[0034] Figure 5 The utility model provides a conductor pipe main body's three -dimensional structure schematic diagram provided for the embodiment of the utility model,

[0035] Figure 6 The utility model provides a conductor pipe main body's axial section structure schematic diagram provided for the embodiment of the utility model,

[0036] Figure 7 The utility model provides a spring piece pipe's front view structure schematic diagram provided for the embodiment of the utility model,

[0037] Figure 8 The utility model provides a spring piece pipe's left view (same right view) structure schematic diagram provided for the embodiment of the utility model,

[0038] Figure 9 The utility model provides a spring piece pipe's axial section structure schematic diagram provided for the embodiment of the utility model,

[0039] Figure 10 The utility model provides a rear seat's three -dimensional structure schematic diagram provided for the embodiment of the utility model,

[0040] Figure 11 The utility model provides an electric connector and conductor male piece are inserted and are assembled structure schematic diagram provided for the embodiment of the utility model,

[0041] Figure 12 The utility model provides an electric connector and conductor male piece are inserted and are front view structure schematic diagram provided for the embodiment of the utility model,

[0042] Figure 13 The utility model provides an electric connector and conductor male piece are inserted and are axial section structure schematic diagram provided for the embodiment of the utility model.

[0043] 1: conductor pipe body; 11: protection end; 12: internal thread; 2: spring piece pipe;

[0044] 21: annular section; 22: contact spring section; 221: contact spring; 222: gap;

[0045] 3: rear seat; 31: cylindrical protrusion; 32: external thread; 4: conductor male piece. DETAILED DESCRIPTION

[0046] The utility model will be combined with the specific embodiment and the drawing to explain the utility model in detail, here, the illustrative embodiment of the utility model and the explanation are used to explain the utility model, but do not as the limitation of the utility model. Embodiment

[0047] Referring to Figures 1-13 as shown.

[0048] The embodiment provides an electric connector which can be used as a female conductor for power plug connection, and is used for plugging with a male conductor 4 at the opposite end to realize electric connection.

[0049] The body of the electric connector of the embodiment includes a conductor pipe body 1 and a spring pipe 2, wherein the conductor pipe body 1 and the spring pipe 2 are made of a conductor material with good conductivity, such as but not limited to copper.

[0050] The conductor pipe body 1 is provided with a cylindrical cavity, and at least the front end of the cavity is a pipe opening for inserting the male conductor 4.

[0051] The spring pipe 2 includes at least three annular segments 21 and a plurality of contact spring segments 221. Referring to the drawings, the spring pipe 2 includes five annular segments 21 and four contact spring segments 221, wherein the inner diameter and the outer diameter of each annular segment 21 are consistent, and each annular segment 21 has a continuous outer periphery and an inner periphery, and the annular segment 21 has a certain thickness to have a certain elastic deformation capacity. Each contact spring segment 22 is arranged between two annular segments 21, so that along the axial direction of the spring pipe 2, the annular segment 21-contact spring segment 221-ring segment 21-contact spring segment 221……-annular segment 21 is sequentially arranged. The two annular segments 21 of the embodiment are respectively used as the front end and the rear end of the spring pipe 2, which is beneficial to improve the structural stability of the spring pipe 2.

[0052] Each annular segment 21 is the widest outer diameter and the widest inner diameter of the spring pipe 2. The outer diameter of each annular segment 21 is consistent, and is equal to or slightly smaller than the inner diameter of the cavity of the conductor pipe body 1, so that when the spring pipe 2 is accommodated in the cavity of the conductor pipe body 1, the outer periphery of each annular segment 21 is in contact or substantially in contact with the inner wall of the cavity.

[0053] The shape of each contact spring segment 22 can be different or the same, and the shape and structure of each contact spring segment 221 in the drawings are the same, but are not limited thereto.

[0054] Each contact spring segment 22 comprises a plurality of contact springs 221 made of sheet conductor and having elastic deformation capability. Two ends of each contact spring 221 are connected to the two annular segments 21, which can be fixedly connected or integrally cut. In each contact spring segment 22, the contact springs 221 are sequentially distributed along the edges of the two annular segments 21 between the two annular segments 21, forming a group of contact springs 221 around the central axis. Each laterally adjacent contact spring 221 is laterally provided with a gap 222 and is not connected together, so that each contact spring 221 in each contact spring segment 22 is independent of each other and can elastically deform outward. At least one position of the middle segment of each contact spring segment 22 extends towards the central axis of the spring tube 2. The at least one position of the middle segment of each contact spring segment 22 is closer to the central axis than other positions of the contact spring segment 22. When the closest positions of each contact spring 221 in the contact spring segment 22 to the central axis are the same and the closest distances are the same, the closest points form a circle with the central axis as the center. The position is the narrowest position of the pipe diameter of the contact spring segment 22. When each contact spring segment 22 has only one circle of the narrowest position of the pipe diameter, the narrowest position of the pipe diameter is taken as the middle of the contact spring segment 22. Each contact spring segment 22 gradually recesses towards the central axis from the middle of the narrowest position of the pipe diameter towards the two ends. The recess curve can be but is not limited to an arc. Each contact spring segment 22 can be but is not limited to symmetrical relative to the middle of the narrowest position of the pipe diameter.

[0055] When the conductor male plug is inserted into the spring tube 2 in the conductor tube body 1, the outer wall of the conductor male plug 4 contacts the inner surface of the position of each contact spring 221 of each contact spring segment 22 at the narrowest position of the pipe diameter. The position of each contact spring 221 contacted by the conductor male plug 4 is subjected to radial outward pressure, and each contact spring 221 elastically deforms. The position of each contact spring 221 elastically deformed to the greatest extent is the position of each contact spring 221 contacted by the conductor male plug 4 at the narrowest position of the pipe diameter. Under the elastic force of each contact spring 221, the outer periphery of each annular segment 21 (i.e. the plurality of annular segments 21) tightly abuts the inner wall of the conductor tube body 1, and the outer periphery of the annular segment 21 and the inner wall of the conductor tube body 1 have relative pressure, so that the spring tube 2 and the conductor tube body 1 are tightly abutted together, have good conductive contact, ensure the contact reliability of the electrical connection, and reduce the internal resistance of the electrical connector.

[0056] Compared with the straight pipe type conductive female plug of the prior art, when the conductive connector of the embodiment is connected with the conductor male plug 4, the spring tube 2 in the conductive connector as the conductor female plug elastically deforms under the elastic force. The spring tube 2 is tightly pressed at multiple positions with the inserted conductor male plug 4, the contact between the connector and the plug is more closely, and the contact stability and reliability are better.

[0057] In addition, the outer wall of each annular segment 21 of the spring tube 2 is tightly pressed against the inner wall of the conductor tube body 1, and under the elastic force of each spring segment, there is a relative radial pressure between each annular segment 21 and the inner wall of the conductor tube body 1, and the contact between the two is more stable and reliable.

[0058] Compared with the technical solution of providing strip-shaped springs in the conductor tube body 1, the strip-shaped springs have the defects of easy wear and short service life. The spring tube 2 of the present embodiment is composed of a plurality of continuous annular segments 21 and a plurality of contact spring segments 22, each contact spring segment 22 is spaced between two annular segments 21, and each contact spring segment 22 is composed of a plurality of independent contact springs 221 in a discontinuous annular shape (or intermittent annular shape). The two annular segments 21 at both ends of the contact spring segment 22 have lower rigidity and lower deformability than the contact spring 221, and can limit the two ends of each contact spring 221 to prevent the elastic deformation of each contact spring 221 from exceeding the acceptable range and causing rapid damage. This is beneficial to limiting the elastic deformation of each contact spring 221 and ensuring close contact with the inserted conductor male element 4, and the spring tube 2 is more durable and reliable. In the present embodiment, each contact spring 221 in each contact spring segment 22 surrounds the central axis and contacts the periphery of the inserted conductor male element 4, which is in close contact with the conductor male element 4 and has a larger contact area, which is beneficial to reducing the contact resistance of the electrical connector and reducing the heat generation of the electrical connector.

[0059] In summary, the electrical connector of the present embodiment has more stable and reliable contact during electrical connection, smaller internal resistance, and is beneficial to reducing the temperature of the electrical connector.

[0060] The electrical connector of the present embodiment can be applied to a plug, such as packaging the conductor tube body 1 of the electrical connector on an insulating base, and the user can hold the insulating base to plug in or plug out the plug. For example, an electrical connector can be packaged on an insulating base to serve as one of the positive or negative poles of the electrical connection. Two electrical connectors insulated from each other can be packaged on an insulating base to design a plug-in connection of two poles.

[0061] The electrical connector of the present embodiment can be applied to a power supply, such as but not limited to a power supply interface of a battery pack. One of the positive and negative poles of the battery pack is connected to the rear end or the outside of the conductor tube body 1 through a wire, and the specific electrical connection method is described above.

[0062] The electrical connector of the present embodiment can also be applied to an electrical device as a power supply interface of the electrical device.

[0063] As an illustration of the embodiment, a predetermined gap 222 is provided between each side of the contact spring 221 segment 22 and the side of the two contact springs 221 adjacent to each other, so that when the contact spring 221 is elastically deformed radially outward, the contact springs 221 are not in contact with each other and are independent of each other, ensuring the freedom of elastic deformation of the contact spring 221, avoiding the friction between the two adjacent contact springs 221 affecting the flexibility of the elastic deformation of the contact spring 221. Therefore, the use of the scheme is beneficial to ensure the reliability of the elastic deformation of the contact spring 221 segment 22, and further ensure the contact reliability of the electrical connection.

[0064] In addition, the two ends of each contact spring 221 segment 22 are respectively an annular segment 21 with a large inner diameter and a large outer diameter, and the annular segment 21 is continuous around one circle. During the radial expansion of each contact spring 221, the elastic deformation ability of the annular segment 21 at the two ends is lower than that of each sheet-shaped contact spring 221, and the outer periphery of the annular segment 21 is attached to the inner wall of the conductor pipe body 1. Therefore, the annular segment 21 at the two ends limits the radial position of the two ends of each contact spring 221, which is beneficial to improve the stability, consistency and reliability of the elastic deformation of each contact spring 221 located between the two annular segments 21.

[0065] As an illustration of the embodiment, the width of the lateral gap 222 between any two adjacent contact springs 221 on the spring pipe 2 can be designed to be uniform.

[0066] As an illustration of the embodiment, the shape of each contact spring 221 can be designed as a sheet with equal width everywhere, wherein in the natural state, the middle segment of each contact spring 221 in the axial direction is the part closest to the center axis. It is preferred but not limited to design each contact spring 221 as a curved surface, and the two curved surface segments on both sides of the middle segment are symmetrical with respect to the middle segment therebetween.

[0067] In addition, it can also be preferred that each contact spring 221 is symmetrical with respect to the center axis. The use of this scheme is beneficial to improve the consistency of the elastic deformation direction of each contact spring 221, improve the contact tightness between the spring pipe 2, the conductor male part 4 and the conductor pipe body 1, and improve the electrical connection reliability and stability.

[0068] As an illustration of the embodiment, a rear seat 3 made of a conductor material is further provided at the rear end of the conductor pipe body 1, which blocks the rear end opening of the pipe cavity of the conductor pipe body 1. A protective end 11 is provided at the front end of the conductor pipe body 1, and the inner diameter of the protective end 11 is smaller than the inner diameter of the pipe cavity of the conductor pipe body 1, smaller than the inner diameter of the annular segment 21 of the spring pipe 2, and greater than the inner diameter of the narrowest part of each contact spring 221 segment 22.

[0069] In the process of assembling the electric connector, the spring tube 2 is inserted into the rear end of the conductor tube body 1, the outer periphery of each annular section 21 of the spring tube 2 is in contact with the inner periphery of the conductor tube, and the spring tube 2 is pushed forward; the rear seat 3 is installed at the rear end of the conductor tube body 1 to block the rear end of the tube cavity; the spring tube 2 is limited in the tube cavity between the rear seat 3 and the protective end 11, and is in close contact with the rear seat 3 and the protective end 11, respectively.

[0070] As an example of the embodiment, the front end and the rear end of the spring tube 2 are preferably in contact with or almost in contact with the front end surface of the rear seat 3 and the inner end surface of the protective end 11 of the front end of the conductor tube body 1 when the conductor male element 4 is not inserted. When the conductor male element 4 is inserted, each contact spring 221 of the spring tube 2 elastically expands outward, and when the front end and the rear end of the spring tube 2 are in contact with the rear seat 3 and the protective end 11, respectively, and the outer periphery of each annular section 21 of the spring tube 2 is in contact with the inner periphery of the tube cavity, the front and rear ends of the spring tube 2 are limited and cannot be axially stretched, the annular section 21 at both ends of each contact spring 221 section 22 cannot move axially or radially, the position of the spring tube 2 is fixed, the both ends of each contact spring 221 in each contact spring 221 section 22 are fixed, the middle part of each contact spring 221 elastically deforms radially outward as a force receiving position, and the middle part of each contact spring 221 section 22 in the spring tube 2 expands radially outward, respectively.

[0071] As an example of the embodiment, matching threads can be provided on the rear seat 3 and the conductor tube body 1, respectively, and the rear seat 3 is screwed on the rear end of the conductor tube body 1, wherein the rear seat 3 can be made of copper but is not limited thereto.

[0072] The electric connector of the embodiment is assembled by three independent components, i.e., the rear seat 3, the conductor tube body 1, and the spring tube 2, and the assembly and disassembly are very simple and easy to operate, which is conducive to reducing the processing cost and improving the work efficiency.

[0073] As an example of the embodiment, a welding position can also be provided at the rear end of the rear seat 3 to weld a wire, and the wire is used to connect the power supply or the electrode of the electrical equipment.

[0074] As an example of the present embodiment, a cylindrical protrusion 31 protruding from the front end face of the rear seat 3 can be provided, which matches the shape of the lumen of the conductor tube body 1, and an external thread 32 can be provided on the outer periphery of the protrusion. Correspondingly, an internal thread 12 can be provided on the inner wall of the lumen of the conductor tube body 1. When the rear seat 3 is screwed to the rear end of the conductor tube body 1, the cylindrical protrusion 31 of the front end face of the rear seat 3 is screwed into the lumen of the conductor tube body 1. When assembling the electrical connection, after the spring tube 2 is inserted into the lumen, the rear seat 3 is screwed to the rear end of the conductor tube body 1 until the front end of the spring tube 2 abuts against the protective end 11 of the front end of the conductor tube body 1, and the cylindrical protrusion 31 of the rear seat 3 abuts against the rear end of the conductor tube body 1. The front end and the rear end of the spring tube 2 are both tightly abutted between the protective end 11 and the rear seat 3, and further screwing into the rear seat 3 is stopped. The present embodiment is advantageous in controlling the positioning of the two ends of the spring tube 2, facilitating the replacement of the spring tube 2, compatible with the length error of the spring tube 2, and expanding the adaptability of spare parts.

[0075] The present embodiment provides an electrical connection kit, as shown in Figures 11-13 As shown in the above description of the present embodiment, the first electrical connection of the electrical connection used as a conductor female part, and the second electrical connection of the conductor male part 4 that can be inserted into the spring tube 2 of the present embodiment. Specifically, the outer diameter of the conductor male part 4 is greater than the inner diameter of the narrowest part of the spring tube 2 in the first electrical connection, and is greater than or equal to the inner diameter of the widest part of the spring tube 2. When the conductor male part 4 is inserted into the spring tube 2, the outer wall of the conductor male part 4 contacts the part of each contact spring segment 22 closest to the central axis on the spring tube 2, respectively. Under the pressure of the conductor male part 4 on each contact spring segment 22, each contact spring segment 22 elastically deforms radially outward, and each annular segment 21 has an outward pressure on the inner wall of the conductor tube body 1. Further application principles of the plug are described above.

[0076] As an example of the present embodiment, a flower basket type copper tube is preferably but not limitedly used as the conductor male part 4 of the present embodiment.

[0077] The above-described embodiments do not constitute a limitation on the protection scope of the technical solutions. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the above-described embodiments shall be included in the protection scope of the technical solutions.

Claims

1. An electrical connector, characterized by Comprising: a conductor tube body, in the tube cavity of which is arranged a spring tube made of conductor material; the spring tube comprises at least three annular segments and a plurality of contact spring segments; between any two adjacent annular segments, there is respectively arranged one contact spring segment, each contact spring segment comprises a plurality of independent contact springs, both ends of each contact spring are respectively connected with or integrated with two annular segments, each contact spring is sequentially distributed along the edge of the two annular segments, and at least one part of each contact spring segment extends in the direction of the central axis, under the action of an external force, each contact spring segment can be elastically deformed radially, when a conductor male element is inserted into the spring tube, the outer wall of the conductor male element contacts the part of each contact spring segment closest to the central axis, under the pressure of the conductor male element, each contact spring segment elastically deforms radially outward, and the outer periphery of each annular segment is tightly attached to the inner wall of the conductor tube body.

2. The electrical connector according to claim 1, wherein in each contact spring segment, there is a gap between the lateral sides of two laterally adjacent contact springs.

3. The electrical connector according to claim 2, wherein each gap is the same, and the width of any gap is the same.

4. The electrical connector according to claim 1, wherein a rear seat made of conductor material is further arranged at the rear end of the conductor tube body, the rear seat blocks the rear end of the tube cavity of the conductor tube body, a protective end is arranged at the front end of the conductor tube body, the inner diameter of the protective end is smaller than the inner diameter of the annular segment of the spring tube and larger than the inner diameter of the narrowest part of the spring tube, the spring tube is limited between the rear seat and the protective end.

5. The electrical connector according to claim 4, wherein when a conductor male element is inserted into the spring tube, the front and rear ends of the spring tube are tightly attached to the rear seat and the protective end respectively.

6. The electrical connector according to claim 4, wherein the rear seat and the conductor tube body are screwed together.

7. The electrical connector according to claim 6, wherein a cylindrical protrusion matching the tube cavity of the conductor tube body is arranged at the front end of the rear seat, and an external thread is arranged on the outer periphery of the cylindrical protrusion, an internal thread is arranged on the inner periphery of the rear end of the tube cavity, and when the rear seat and the tube cavity are screwed together, the cylindrical protrusion is located in the tube cavity.

8. The electrical connector according to claim 7, wherein when the rear seat and the tube cavity are screwed together, the front end face of the cylindrical protrusion abuts against the rear end of the spring tube, and the front end of the spring tube abuts against the protective end.

9. The electrical connector according to claim 1, wherein when there is no conductor male element inserted, the distance between each contact spring and the central axis gradually decreases from the two ends to the middle part, the inner wall and the outer wall of each contact spring are respectively curved surfaces, and each contact spring is symmetrical with respect to the central axis.

10. An electrical connection kit, characterised in that, Comprising: The first electric connecting member is the electric connecting member as claimed in any one of claims 1 to 9, The second electric connecting member is a conductor male member, the outer diameter of the conductor male member is greater than the inner diameter of the narrowest part of the shell of the spring shell, and is greater than or equal to the inner diameter of the widest part of the shell of the spring shell, When the conductor male member is inserted into the spring shell, the outer wall of the conductor male member is in contact with the part of each contact spring segment closest to the central axis, and each contact spring segment is elastically deformed radially outward under the pressure of the conductor male member, and the outer periphery of each ring segment is in close contact with the inner wall of the conductor shell body.

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