Electrical connector and electrical connection kit

Abstract

The invention relates to the field of application connection of lithium ion batteries, in particular to an electric connector and an electric connection 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 present invention relates to the field of application connections of lithium-ion batteries, and particularly to an electrical connector and an electrical connection kit. Background Art

[0002] With the increasingly wide application of lithium-ion battery devices, more and more devices use lithium-ion batteries. People's requirements for the connection devices between lithium-ion batteries and devices, and for the connection devices between batteries and chargers are gradually increasing and getting higher and higher.

[0003] In the process of inventing the present invention, the inventor of the present invention found that the connectors in the prior art have the defect of being prone to loosening, which is not conducive to use. Summary of the Invention

[0004] One of the purposes of the embodiments of the present invention is to provide an electrical connector and an electrical connection kit. Applying this technical solution is beneficial to improving the reliability of electrical plug-in connections.

[0005] In a first aspect, an electrical connector provided by an embodiment of the present invention includes: a conductor tube body, and a spring tube made of a conductor material is accommodated in the tube cavity of the conductor tube body; The spring tube includes at least three annular segments and a plurality of contact spring segments; Between any two adjacent annular segments, one of the contact spring segments is respectively spaced; Each contact spring segment respectively includes a plurality of independent contact spring pieces. The two ends of each contact spring piece are respectively connected to or integral with the two annular segments. Each contact spring piece is sequentially distributed along the edges of the two annular segments. At least one place of each contact spring segment bends and extends towards the central axis direction; Under the action of an external force, each contact spring segment can radially elastically deform. When a conductor male part is inserted into the spring tube, the outer wall of the conductor male part is respectively in contact with the part closest to the central axis of each contact spring segment. Under the pressure of the conductor male part, each contact spring segment radially elastically deforms outwards, and the outer periphery of each annular segment is in close contact with the inner wall of the conductor tube body.

[0006] Optionally, within each contact spring segment, there is a gap between the lateral sides of two adjacent contact spring pieces.

[0007] Optionally, each of the gaps is the same, and the width of each part of any one of the gaps is the same.

[0008] Optionally, a rear seat made of a conductor material is further provided at the rear end of the conductor tube body. The rear seat seals the rear end of the tube cavity of the conductor tube body. A protective end is provided 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 section of the shrapnel tube and larger than the inner diameter of the narrowest part of the shrapnel tube. The shrapnel tube is limited between the rear seat and the protective end.

[0009] Optionally, when a conductor male part is inserted into the shrapnel tube, the front and rear ends of the shrapnel tube are respectively in close contact with the rear seat and the protective end.

[0010] Optionally, the rear seat and the conductor tube body are screwed together.

[0011] Optionally, a cylindrical protrusion matching the lumen of the conductor tube body is provided at the front end of the rear seat, and an external thread is provided on the outer periphery of the cylindrical protrusion. An internal thread is provided on the inner periphery of the rear end of the lumen. When the rear seat is screwed with the lumen, the cylindrical protrusion is located inside the lumen.

[0012] Optionally, when the rear seat is screwed with the lumen, the front end face of the cylindrical protrusion abuts against the rear end of the shrapnel tube, and the front end of the shrapnel tube abuts against the protective end.

[0013] Optionally, when no conductor male part is inserted, from both ends to the middle direction of each contact shrapnel, the distance of the contact shrapnel from the central axis gradually becomes smaller. The inner wall and outer wall of each contact shrapnel are respectively curved surfaces, and each contact shrapnel is symmetrical with respect to the central axis.

[0014] In a second aspect, the electrical connection kit provided by the embodiment of the present invention is characterized by including A first electrical connector, which is any one of the above electrical connectors. A second electrical connector, which is a conductor male part. The outer diameter of the conductor male part is larger than the inner diameter of the narrowest part of the shrapnel tube in the first electrical connector and larger than or equal to the inner diameter of the widest part of the shrapnel tube. When the conductor male part is inserted into the shrapnel tube, the outer wall of the conductor male part is respectively in contact with the part closest to the central axis of each contact shrapnel segment. Under the pressure of the conductor male part, each contact shrapnel segment elastically deforms radially outward, and the outer periphery of each annular segment is in close contact with the inner wall of the conductor tube body.

[0015] As can be seen from the above, compared with the straight tube type conductive female plug of the prior art, when the conductive connector of this embodiment is connected to the conductor male part, the shrapnel tube inside the electrical connector of this embodiment as the conductive female plug elastically deforms elastically. Under the elastic force, multiple parts of the shrapnel tube are tightly pressed against the inserted conductor male part, and the contact between the connectors is closer, and the contact stability and reliability are better.

[0016] In addition, the outer walls of the outer peripheries of each annular segment of the shrapnel tube in this embodiment are tightly pressed against the inner wall of the conductor tube body. Under the elastic force of each shrapnel segment, there is a relative radial pressure between each annular segment and the inner wall of the conductor tube body, and their contact is closer, and the contact stability and reliability are better.

[0017] Compared with the technical solution of arranging strip-shaped shrapnel in the conductor tube body, the strip-shaped shrapnel has defects such as easy loss and short service life. The shrapnel tube in this embodiment is composed of a plurality of continuous circular annular segments and a plurality of contact shrapnel segments. Each contact shrapnel segment is spaced between two annular segments. Each contact shrapnel segment is composed of a discontinuous ring (or intermittent ring) formed by a plurality of independent contact shrapnels. The two annular segments at both ends of the contact shrapnel segment are continuous circular rings, so their rigidity is relatively lower than that of the sheet-shaped contact shrapnel, and the deformability is lower. They can limit the two ends of each contact shrapnel, avoiding excessive elastic deformation of each contact shrapnel and resulting in damage too quickly due to the deformation degree exceeding the tolerable range. That is, it is beneficial to limit the elastic deformation limit of each contact shrapnel, ensure close contact with the inserted conductor male part, and the shrapnel tube is more durable and reliable. Moreover, in this embodiment, each contact shrapnel in each contact shrapnel segment contacts the four sides of the inserted conductor male part around the central axis, and the contact with the conductor male part is closer, and the contact area is larger, which is beneficial to reducing the contact internal resistance of the electrical connector and reducing the heat generation of the electrical connector.

[0018] In summary, by using the electrical connector of this embodiment, the contact during the electrical connection and insertion process is more stable and reliable, the internal resistance is smaller, and it is beneficial to reduce the temperature of the electrical connector. Description of the Drawings

[0019] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not constitute an improper limitation of the present invention.

[0020] Figure 1 It is a schematic assembly structure diagram of the electrical connector provided by the embodiment of the present invention; Figure 2 It is a schematic three-dimensional structure diagram of the electrical connector provided by the embodiment of the present invention; Figure 3 It is a schematic diagram of the pipe orifice structure of the electrical connector provided by the embodiment of the present invention; Figure 4 It is a schematic axial cross-sectional structure diagram of the electrical connector provided by the embodiment of the present invention; Figure 5 It is a schematic three-dimensional structure diagram of the conductor tube body provided by the embodiment of the present invention; Figure 6 It is a schematic axial cross-sectional structure diagram of the conductor tube body provided by the embodiment of the present invention; Figure 7 Schematic front view structure diagram of the shrapnel tube provided by the embodiment of the present invention; Figure 8 Schematic left view (same as right view) structure diagram of the shrapnel tube provided by the embodiment of the present invention; Figure 9 Schematic axial sectional view structure diagram of the shrapnel tube provided by the embodiment of the present invention; Figure 10 Schematic three-dimensional structure diagram of the rear seat provided by the embodiment of the present invention; Figure 11 Schematic assembly structure diagram of the electrical connector inserted into the conductor male part provided by the embodiment of the present invention; Figure 12 Schematic front view structure diagram of the electrical connector inserted into the conductor male part provided by the embodiment of the present invention; Figure 13 Schematic axial sectional view structure diagram of the electrical connector inserted into the conductor male part provided by the embodiment of the present invention.

[0021] 1: Conductor tube body; 11: Protective end; 12: Internal thread; 2: Shrapnel tube; 21: Annular section; 22: Contact shrapnel segment; 221: Contact shrapnel; 222: Gap; 3: Rear seat; 31: Cylindrical protrusion; 32: External thread; 4: Conductor male part. Detailed implementation manners

[0022] The present invention will be described in detail below with reference to the drawings and specific embodiments. Here, the schematic embodiments of the present invention and the descriptions are used to explain the present invention, but do not limit the present invention. Embodiment

[0023] See Figures 1 to 13 as shown

[0024] This embodiment provides an electrical connector, which can be used as the conductor female part during power plug connection, and is used to be inserted into the conductor male part 4 at the opposite end to achieve electrical connection.

[0025] The body of the electrical connector in this embodiment includes a conductor tube body 1 and a shrapnel tube 2. Both the conductor tube body 1 and the shrapnel tube 2 are made of conductor materials with good electrical conductivity, such as but not limited to being made of copper parts respectively.

[0026] Among them, a cylindrical tube cavity is provided inside the conductor tube body 1, and at least the front end of the tube cavity is a tube opening for inserting the conductor male part 4.

[0027] The shrapnel tube 2 includes at least three annular segments 21 and a plurality of contact shrapnel 221 segments 22. Referring to the figure, the shrapnel tube 2 includes five annular segments 21 and four contact shrapnel 221 segments 22. Among them, the inner diameter and the outer diameter of each annular segment 21 are the same, both having a continuous outer circumference and an inner circumference. The annular segment 21 has a certain thickness to enable it to have a certain elastic deformation ability. Each contact shrapnel segment 22 is spaced between two annular segments 21, so that along the axial direction of the shrapnel tube 2, an arrangement in sequence such as annular segment 21 - contact shrapnel 221 segment 22 - annular segment 21 - contact shrapnel 221 segment 22... - annular segment 21 is formed. In this embodiment, two annular segments 21 are respectively used as the front end and the rear end of the shrapnel tube 2, which is beneficial to improving the structural stability of the shrapnel tube 2.

[0028] Each annular segment 21 is the widest position of the outer diameter and the widest position of the inner diameter of the shrapnel tube 2. The outer diameters of each annular segment 21 are the same, all equal to or slightly less than the inner diameter of the lumen of the conductor tube body 1. When the shrapnel tube 2 is placed in the lumen of the conductor tube body 1, the outer circumference of each annular segment 21 contacts or substantially contacts the inner wall of the lumen.

[0029] The shape of each contact shrapnel segment 22 can be different or the same. In the figure, the shape and structure of each contact shrapnel 221 segment 22 are the same as an example, but it is not limited to this.

[0030] Each contact spring piece segment 22 respectively includes: a plurality of contact spring pieces 221 made of sheet-shaped conductors and having a certain elastic deformation ability. Both ends of each contact spring piece 221 are respectively connected to the two annular segments 21, which can be fixedly connected or an integral cutting structure. Within each contact spring piece segment 22, these contact spring pieces 221 are sequentially distributed between the two annular segments 21 along the edges of the two annular segments 21, forming a group of contact spring pieces 221 surrounding the central axis. There is a gap 222 provided laterally between each laterally adjacent contact spring piece 221, and they are not connected together, so that the contact spring pieces 221 within each contact spring piece segment 22 are independent of each other, and each contact spring piece 221 can elastically deform outward respectively. At least one place in the middle section of each contact spring piece segment 22 bends and extends towards the central axis of the spring piece tube 2. At least one place in the middle section of each contact spring piece segment 22 is closer to the central axis than other positions of the contact spring piece 221 segment 22. When the positions of each contact spring piece 221 on the contact spring piece 221 segment 22 that are closest to the central axis are the same and the closest distances are the same, the points closest to the central axis form a circle with the central axis as the center, and this place is the narrowest diameter position of the contact spring piece 221 segment 22. Taking the example that each contact spring piece segment 22 only has one circle of the narrowest diameter position and setting this narrowest diameter position as the middle part of the contact spring piece 221 segment 22, each contact spring piece 221 segment 22 is recessed gradually towards the central axis in the direction from the two end parts to the middle part of the narrowest diameter place, and the recessed curve can be but is not limited to an arc. Optionally, each contact spring piece segment 22 is symmetric with respect to the narrowest diameter place in its middle part.

[0031] When a male conductor is inserted into the spring piece tube 2 within the conductor tube body 1 of this embodiment, the outer wall of the male conductor member 4 contacts the inner surface of the part of each contact spring piece 221 of each contact spring piece segment 22 at the narrowest diameter place. The parts of each contact spring piece 221 that contact the male conductor member 4 are subjected to radially outward pressure, and each contact spring piece 221 elastically deforms. The part with the largest degree of elastic deformation is the part of each contact spring piece 221 that is abutted by the male conductor member 4 and is at the narrowest diameter place. Under the elastic force of each contact spring piece 221, the outer peripheries of the annular segments 21 (i.e., multiple annular segments 21) are closely attached to the inner wall of the conductor tube body 1, and there is a relative pressure between the outer periphery of the annular segment 21 and the inner wall of the conductor tube body 1, so that the spring piece tube 2 and the conductor tube body 1 are closely attached together, having good electrical conductivity contact, ensuring the contact reliability of the electrical connection, and reducing the internal resistance of the electrical connector.

[0032] Compared with the straight tube type conductive female plug of the prior art, when the conductive connector of this embodiment is connected to the male conductor member 4, the spring piece tube 2 inside the electrical connector of this embodiment as the conductive female plug elastically deforms. Under the action of the elastic force, multiple places of the spring piece tube 2 are tightly pressed together with the inserted male conductor member 4, and the contact between the connectors is closer, and the contact stability and reliability are better.

[0033] In addition, the outer walls of the outer circumferences of each annular segment 21 of the elastic sheet tube 2 of this embodiment are all tightly pressed against the inner wall of the conductor tube body 1. Under the elastic force of each elastic sheet segment, there is a relative radial pressure between each annular segment 21 and the inner wall of the conductor tube body 1, and their contact is closer, and the contact stability and reliability are better.

[0034] Compared with the technical solution of arranging strip-shaped elastic sheets in the conductor tube body 1, the strip-shaped elastic sheets have defects such as being easily worn and having a short service life. The elastic sheet tube 2 of this embodiment is composed of a plurality of continuous circular annular segments 21 and a plurality of contact elastic sheet segments 22. Each contact elastic sheet segment 22 is spaced between two annular segments 21. Each contact elastic sheet segment 22 is composed of a discontinuous ring (or intermittent ring) formed by a plurality of independent contact elastic sheets 221. The two annular segments 21 at both ends of the contact elastic sheet segment 221 are continuous circular rings, so their rigidity is relatively lower than that of the sheet-shaped contact elastic sheets 221, and the deformability is lower, which can limit the two ends of each contact elastic sheet 221, and prevent the elastic deformation of each contact elastic sheet 221 from being too large and exceeding the tolerable range and being damaged too quickly. That is, it is beneficial to limit the elastic deformation limit of each contact elastic sheet 221 to ensure close contact with the inserted conductor male part 4, and the elastic sheet tube 2 is more durable and reliable. Moreover, in this embodiment, each contact elastic sheet 221 in each contact elastic sheet segment 22 surrounds the central axis and contacts the four sides of the inserted conductor male part 4 respectively, and the contact with the conductor male part 4 is closer, and the contact area is larger, which is beneficial to reducing the contact internal resistance of the electrical connector and reducing the heat generation of the electrical connector.

[0035] In summary, by using the electrical connector of this embodiment, the contact during electrical connection and insertion is more stable and reliable, the internal resistance is smaller, and it is beneficial to reduce the temperature of the electrical connector.

[0036] The electrical connector of this embodiment can be applied to a plug. For example, the conductor tube body 1 of the electrical connector is encapsulated on an insulating base, and the user can hold the insulating base to insert and remove the plug. For example, an electrical connector can be encapsulated on an insulating base to be used as one of the positive or negative electrodes for electrical connection and insertion. It is also possible to encapsulate two electrically isolated electrical connectors on an insulating base and design the plug-and-play connection of the two electrodes on an insulating base.

[0037] The electrical connector of this embodiment can be applied to a power supply, such as but not limited to being applied to the power interface of a battery pack. One of the positive and negative electrodes of the battery pack is connected to the rear end or the outside of the conductor tube body 1 through a wire. For the specific electrical connection and insertion method, refer to the corresponding records above.

[0038] The electrical connector of this embodiment can also be applied to an electrical device as the power interface of the electrical device.

[0039] As an illustration of this embodiment, there is a predetermined gap 222 between the laterally adjacent two contact elastic pieces 221 of each section 22 of the contact elastic piece. When each contact elastic piece 221 elastically deforms radially outward, the contact elastic pieces 221 do not contact each other and are independent of each other, ensuring the degree of freedom of elastic deformation of each contact elastic piece 221 and avoiding the lateral contact between two adjacent contact elastic pieces 221, which may generate frictional force and affect the flexibility of the elastic deformation of the contact elastic piece 221. Therefore, adopting this solution is beneficial to ensuring the reliability of the elastic deformation of each section 22 of the contact elastic piece 221, and further ensuring the contact reliability of the electrical connection.

[0040] In addition, at both ends of each section 22 of the contact elastic piece 221 are annular sections 21 with larger inner and outer diameters, and the annular sections 21 are continuous for one week. During the process of each contact elastic piece 221 expanding radially outward, the elastic deformation ability of the annular sections 21 at both ends is lower than that of each sheet-shaped contact elastic piece 221, and the outer periphery of the annular section 21 is in contact with the inner wall of the conductor tube body 1. Therefore, the annular sections 21 at both ends define the radial positions of both ends of each contact elastic piece 221, which is beneficial to improving the stability, consistency, and reliability of the elastic deformation of each contact elastic piece 221 located between the two annular sections 21.

[0041] As an illustration of this embodiment, for any lateral gap 222 between two adjacent contact elastic pieces 221 on the elastic piece tube 2, the width of each part of the lateral gap 222 can be designed to be the same.

[0042] As an illustration of this embodiment, the shape of each contact elastic piece 221 can be designed as a sheet with equal width everywhere. Among them, in the natural state, the middle section of each contact elastic piece 221 in the axial direction is the part closest to the central axis. Preferably but not limited to, each contact elastic piece 221 is designed as a curved surface, and the two curved surface sections of each curved surface on both sides of the middle section are symmetrical with respect to the middle section therebetween.

[0043] Moreover, it can be further preferably that each contact elastic piece 221 is symmetrical with respect to the central axis. Adopting this solution is beneficial to improving the consistency of the elastic deformation direction of each contact elastic piece 221, improving the contact tightness among the elastic piece tube 2, the conductor male part 4, and the conductor tube body 1, and improving the reliability and stability of the electrical connection and insertion.

[0044] As an illustration of this embodiment, a rear seat 3 made of a conductor material is further provided at the rear end of the conductor tube body 1, and the rear seat 3 seals the rear end opening of the lumen of the conductor tube body 1. A protective end 11 is provided at the front end of the conductor tube body 1. The inner diameter of the protective end 11 is smaller than the inner diameter of the lumen of the conductor tube body 1, smaller than the inner diameter of the annular section 21 of the elastic piece tube 2, and larger than the inner diameter of the narrowest part of the diameter of each section 22 of the contact elastic piece.

[0045] When assembling the electrical connector, the elastic tube 2 is inserted into the rear end opening of the conductor tube body 1. The outer circumference of each annular segment 21 of the elastic tube 2 is in contact with the inner circumference of the conductor tube, and the elastic 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 opening of the lumen. The elastic tube 2 is limited in the lumen 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.

[0046] As an illustration of this embodiment, it is preferably that when the male conductor member 4 is not inserted, the front end and the rear end of the elastic tube 2 are in contact with or almost in contact with the front end face of the rear seat 3 and the inner end face of the protective end 11 at the front end of the conductor tube body 1 respectively. When the male conductor member 4 is inserted, each contact elastic piece 221 of the elastic tube 2 elastically expands outwards. When the deformation reaches that the front end and the rear end of the elastic tube 2 are in contact with the rear seat 3 and the protective end 11 respectively, and the outer circumference of each annular segment 21 of the elastic tube 2 is in contact with the inner circumference of the lumen, at this time, both the front end and the rear end of the elastic tube 2 are limited and cannot stretch axially, and the annular segments 21 at both ends of each contact elastic piece 221 segment 22 cannot move axially or radially, so the position of the elastic tube 2 is fixed. The two ends of each contact elastic piece 221 in each contact elastic piece 221 segment 22 are fixed, and the middle part of each contact elastic piece 221 is the stress position and elastically deforms radially outwards, and the middle parts of each contact elastic piece 221 segment 22 in the elastic tube 2 expand radially outwards respectively.

[0047] As an illustration of this 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 onto the rear end of the conductor tube body 1 through the threads. The rear seat 3 can be made of copper, but is not limited to this.

[0048] The electrical connector of this embodiment is assembled from three independent components: the rear seat 3, the conductor tube body 1, and the elastic tube 2. Its assembly, disassembly and reinstallation are very simple and easy to operate, which is beneficial to reducing the processing cost and improving the work efficiency.

[0049] As an illustration of this embodiment, a welding position can also be provided at the rear end of the rear seat 3 for wire welding, so as to electrically connect the power supply or the electrodes of the electrical equipment through the wire.

[0050] As an illustration of this embodiment, a cylindrical protrusion 31 that protrudes from the front end face and has a shape matching the lumen of the conductor tube body 1 can be provided at the front end of the rear seat 3. An external thread 32 is provided on the outer periphery of the protrusion. Correspondingly, an internal thread 12 is provided on the inner wall of the lumen of the conductor tube body 1. When the rear seat 3 is screwed onto the rear end of the conductor tube body 1, the cylindrical protrusion 31 on the front end face of the rear seat 3 is screwed into the lumen of the conductor tube body 1. When assembling the electrical connector, after inserting the shrapnel tube 2 into the lumen, the rear seat 3 is screwed onto the rear end of the conductor tube body 1 until the front end of the shrapnel tube 2 abuts against the protective end 11 at 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 and rear ends of the shrapnel tube 2 are tightly abutted between the protective end 11 and the rear seat 3, and then further screwing in the rear seat 3 is stopped. Using this embodiment is beneficial for controlling the positioning of both ends of the shrapnel tube 2, facilitating the replacement of the shrapnel tube 2, accommodating the length error of the shrapnel tube 2, and expanding the adaptability of spare parts.

[0051] This embodiment provides an electrical connection kit. Refer to Figures 11 to 13 As shown, the electrical connector as described above in this embodiment is used as the first electrical connection of the conductor mother part, and the second electrical connector used as the conductor male part 4 that can be inserted into the shrapnel tube 2 of this embodiment. Specifically, the outer diameter of the conductor male part 4 is greater than the inner diameter of the narrowest part of the shrapnel tube 2 in the first electrical connector and greater than or equal to the inner diameter of the widest part of the shrapnel tube 2. When the conductor male part 4 is inserted into the shrapnel tube 2, the outer wall of the conductor male part 4 is in contact with the part closest to the central axis of each contact shrapnel segment 22 on the shrapnel tube 2. Under the pressure of the conductor male part 4 on each contact shrapnel segment 221 of the contact shrapnel 22, each contact shrapnel 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. For the further plugging application principle, refer to the description above.

[0052] As an illustration of this embodiment, preferably but not limited to, a flower basket type copper tube is used as the conductor male part 4 of this embodiment.

[0053] The above-described embodiments do not constitute a limitation on the protection scope of this technical solution. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the above embodiments shall be included within the protection scope of this technical solution.

Claims

1. An electrical connector, characterized in that: include: A conductor tube body, wherein a spring tube made of a conductor material is placed in the tube cavity of the conductor tube body; The shrapnel tube includes at least three annular segments and a plurality of contact shrapnel segments; Between any two adjacent ring segments, there is a contact bullet segment. Each of the contact spring segments comprises a plurality of independent contact spring pieces, and both ends of each of the contact spring pieces are connected to or integrated with the two annular segments respectively. The contact spring pieces are sequentially distributed along the edges of the two annular segments, and at least one portion of each of the contact spring segments is bent and extended toward the central axis. Under the action of external force, each of the contact spring segments can be elastically deformed radially. When a conductor male component is inserted into the spring segment tube, the outer wall of the conductor male component contacts the portion of each contact spring segment closest to the central axis. Under the pressure of the conductor male component, each of the contact spring segments elastically deforms radially outward, and the outer periphery of each of the annular segments is tightly attached to the inner wall of the conductor tube body.

2. The electrical connector according to claim 1, characterized in that: In each contact spring segment, there is a gap between two contact spring segments that are adjacent in the laterally direction.

3. The electrical connector according to claim 2, characterized in that: The gaps are identical to each other, and the width of any gap is identical at all locations.

4. The electrical connector according to claim 1, characterized in that: A rear seat made of a conductive material is also provided at the rear end of the conductor tube body, and the rear seat blocks the rear end of the tube cavity of the conductor tube body. A protection end is provided at the front end of the conductor tube body, and the inner diameter of the protection end is smaller than the inner diameter of the annular segment of the shrapnel tube and larger than the inner diameter of the narrowest part of the shrapnel tube. The shrapnel tube is limited to be located between the rear seat and the protection end.

5. The electrical connector according to claim 4, characterized in that: When a conductor male part 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, characterized in that: The rear seat is screwed together with the conductor tube body through threads.

7. The electrical connector according to claim 6, characterized in that: A cylindrical protrusion matching the tube cavity of the conductor tube body is provided at the front end of the rear seat, and an external thread is provided 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. When the rear seat is screwed together with the tube cavity thread, the cylindrical protrusion is located in the tube cavity.

8. The electrical connector according to claim 7, characterized in that: When the rear seat is screwed together with the tube cavity thread, the front end surface of the cylindrical protrusion abuts against the rear end of the shrapnel tube, and the front end of the shrapnel tube abuts against the protective end.

9. The electrical connector according to claim 1, characterized in that: When the non-conductive male part is inserted, the distance between each contact spring and the central axis gradually decreases from the two ends to the middle, the inner wall and the outer wall of each contact spring are curved surfaces, and each contact spring is symmetrical relative to the central axis.

10. An electrical connection kit, characterized in that: include, The first electrical connector is an electrical connector as claimed in any one of claims 1 to 9, The second electrical connector is a conductor male part, the outer diameter of which is larger than the inner diameter of the shrapnel tube at the narrowest part of the first electrical connector, and larger than or equal to the inner diameter of the shrapnel tube at the widest part of the tube diameter. When the conductor male component is inserted into the shrapnel tube, the outer wall of the conductor male component contacts the portion of each contact shrapnel segment closest to the central axis respectively. Under the pressure of the conductor male component, each contact shrapnel 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.

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