Electric connector

Abstract

The utility model discloses an electric connector, and relates to the technical field of connectors, and the electric connector comprises a male end which comprises a first housing; the female end comprises a second shell; the first electric connection assembly comprises a first conductor and a second conductor, the first conductor and the second conductor are cylindrical, one of the first conductor and the second conductor is arranged in the first shell, the other of the first conductor and the second conductor is arranged in the second shell, and one end, close to the second conductor, of the first conductor is provided with an elastic arm structure; wherein the first shell is inserted into the second shell, so that the first conductor and the second conductor are sleeved to realize electrical connection, and the elastic arm structure generates elastic force applied to the second conductor along the radial direction of the first conductor. According to the technical scheme provided by the utility model, the male end and the female end of the electric connector are in tight butt joint and are not easy to loosen.

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, as key components for achieving electrical connections, are widely used in the transmission of signals and power between various devices. Electrical connectors typically consist of male and female terminals, which are mated together to achieve an electrical connection.

[0003] There is an electrical connector used in products such as fascia guns and massagers. One of the male and female terminals is installed on the massage head, and the other of the male and female terminals is installed on the handle. When the handle is connected to the massage head, the male and female terminals are connected to achieve electrical connection, which facilitates the adaptation of the handle to different types of massage heads.

[0004] However, because such products vibrate at high frequencies during operation, the male and female terminals of the electrical connector can easily become loose. Utility Model Content

[0005] The main purpose of this utility model is to provide an electrical connector that allows for a tight fit between the male and female ends and prevents loosening.

[0006] To achieve the above objectives, the electrical connector proposed in this utility model includes:

[0007] The male end includes the first housing;

[0008] The female end includes a second housing; and

[0009] The first electrical connection assembly includes a first conductor and a second conductor, both of which are cylindrical. One of the first conductor and the second conductor is located inside the first housing, and the other is located inside the second housing. The first conductor has a spring arm structure at one end near the second conductor.

[0010] Wherein, the first housing is inserted into the second housing, so that the first conductor and the second conductor are sleeved to achieve electrical connection, and the elastic arm structure generates an elastic force applied to the second conductor in the radial direction of the first conductor.

[0011] In one embodiment, the first conductor has a first notch at one end near the second conductor. At least two first notches are distributed circumferentially along the first conductor, and each first notch extends axially along the first conductor, such that the end of the first conductor near the second conductor forms the spring arm structure.

[0012] In one embodiment, the second conductor is sleeved outside the first conductor, and the elastic arm structure has a first protrusion facing the outer wall of the second conductor, or the second conductor has a second protrusion facing the inner wall of the elastic arm structure.

[0013] In one embodiment, the electrical connector further includes a second electrical connection assembly, which includes a center pin and a pin seat. The pin seat has a socket corresponding to the center pin. One of the center pin and the pin seat is located inside the first housing, and the other is located inside the second housing.

[0014] The first housing is inserted into the second housing, so that the center pin is inserted into the socket to achieve electrical connection.

[0015] In one embodiment, the needle holder passes through the interior of the first housing and is coaxially arranged with the first housing, and the first conductor is spaced out and sleeved on the exterior of the needle holder and is coaxially arranged with the needle holder;

[0016] The central needle passes through the interior of the second housing and is coaxially arranged with the second housing. The second conductor is spaced out and sleeved on the exterior of the central needle and is coaxially arranged with the central needle.

[0017] In one embodiment, the male terminal further includes a first circuit board, which is fixed inside the first housing, and the pin socket and the first conductor are electrically connected to the first circuit board, respectively; and / or,

[0018] The female end also includes a second circuit board, which is fixed inside the second housing, and the center pin and the second conductor are electrically connected to the second circuit board respectively.

[0019] In one embodiment, the sidewall of the insertion hole is provided with a second notch, at least two of which are distributed circumferentially along the needle seat, and each second notch extends axially along the needle seat.

[0020] In one embodiment, the electrical connector further includes a locking structure disposed between the first housing and the second housing, for preventing the first housing from separating from the second housing along its own axial direction.

[0021] In one embodiment, the locking structure includes an undercut groove and a locking protrusion. The undercut groove is disposed on the outer wall of the first housing, and the locking protrusion is disposed on the inner wall of the second housing. The undercut groove includes a communicating guide groove and a locking groove. The guide groove extends obliquely from one end of the first housing near the second housing to the other end. The locking groove extends circumferentially along the first housing. The locking protrusion enters the locking groove through the guide groove to prevent the first housing from separating from the second housing along its own axial direction.

[0022] In one embodiment, the locking structure further includes an elastic ring. The outer wall of the first housing is provided with a limiting protrusion. The elastic ring is sleeved on the outside of the first housing and is located on the side of the limiting protrusion facing the second housing. The locking protrusion enters the locking groove, so that the second housing and the limiting protrusion squeeze and deform the elastic ring, so that the elastic ring generates an elastic force along its own axis.

[0023] The electrical connector in this utility model includes a male end, a female end, and a first electrical connection component. The first electrical connection component has a first conductor and a second conductor, one of which is disposed in the first housing of the male end and the other is disposed in the second housing of the female end. When the first housing of the male end is inserted into the second housing of the female end, the first conductor and the second conductor are sleeved together to achieve electrical connection, thereby realizing the electrical connection between the male end and the female end. Furthermore, since both the first conductor and the second conductor are cylindrical, the sleeve between them is tighter and the electrical connection is more stable. A spring arm structure is provided at the end of the first conductor facing the second conductor. When the first conductor and the second conductor are sleeved together, the spring arm structure undergoes elastic deformation, generating elastic force. This elastic force is applied to the second conductor radially along the first conductor. On the one hand, this makes the first conductor and the second conductor more tightly contacted in the radial direction, improving the stability of the electrical connection between the male and female terminals. This allows the electrical connector to effectively resist separation caused by external forces or vibrations, thus improving the reliability of the electrical connector. On the other hand, it increases the radial normal pressure between the first conductor and the second conductor, which also increases the static friction between them. This makes it less likely for the first conductor and the second conductor to slide relative to each other in the axial direction, and consequently, it makes it less likely for the first housing and the second housing to slide relative to each other in the axial direction. This allows the male and female terminals to effectively resist separation caused by external forces or vibrations. Furthermore, the sleeved connection of the first conductor and the second conductor makes it less likely for the male and female terminals to move relative to each other in the radial direction. Even if there is slight radial relative movement between the male and female terminals, the spring arm structure has a certain radial displacement compensation capability, preventing the first conductor and the second conductor from separating and improving the reliability of the electrical connection between the male and female terminals. Attached Figure Description

[0024] 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.

[0025] Figure 1 A cross-sectional view of an embodiment of the electrical connector provided by this utility model;

[0026] Figure 2 A schematic diagram of the male end of an embodiment of the electrical connector provided by this utility model;

[0027] Figure 3 An exploded view of the male end of an embodiment of the electrical connector provided by this utility model;

[0028] Figure 4 A schematic diagram of the female end of an embodiment of the electrical connector provided by this utility model;

[0029] Figure 5 An exploded view of the female end of an embodiment of the electrical connector provided by this utility model;

[0030] Figure 6 A cross-sectional view of another embodiment of the electrical connector provided by this utility model;

[0031] Figure 7 A schematic diagram of the male end of another embodiment of the electrical connector provided by this utility model;

[0032] Figure 8 A schematic diagram of the female end of another embodiment of the electrical connector provided by this utility model.

[0033] Explanation of icon numbers:

[0034] 100, Male end; 110, First housing; 111, Inverted groove; 1111, Guide groove; 1112, Locking groove; 120, First circuit board;

[0035] 200, Female end; 210, Second housing; 211, Locking protrusion; 220, Second circuit board;

[0036] 300. First electrical connection assembly; 310. First conductor; 311. Spring arm structure; 312. First notch; 320. Second conductor;

[0037] 400. Second electrical connection assembly; 410. Center pin; 420. Pin holder; 421. Socket; 422. Second notch;

[0038] 500, elastic band.

[0039] 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

[0040] 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 a part of the embodiments of the present utility model, and not all of them. 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 protection scope of the present utility model.

[0041] 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.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation" should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] 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 meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it 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.

[0044] This utility model proposes an electrical connector.

[0045] Please see Figure 1 , Figure 2 and Figure 4 , Figure 1 This is a cross-sectional view of an embodiment of the electrical connector provided by this utility model. Figure 2 This is a schematic diagram of the male end of an embodiment of the electrical connector provided by this utility model. Figure 4 A schematic diagram of the female end of an embodiment of the electrical connector provided by this utility model.

[0046] In one embodiment of this utility model, the electrical connector includes:

[0047] Male end 100 includes a first housing 110;

[0048] The female end 200 includes a second housing 210; and

[0049] The first electrical connection assembly 300 includes a first conductor 310 and a second conductor 320. Both the first conductor 310 and the second conductor 320 are cylindrical. One of the first conductor 310 and the second conductor 320 is located inside the first housing 110, and the other is located inside the second housing 210. The first conductor 310 is provided with a spring arm structure 311 at one end near the second conductor 320.

[0050] The first housing 110 is inserted into the second housing 210, so that the first conductor 310 and the second conductor 320 are sleeved to achieve electrical connection, and the elastic arm structure 311 generates an elastic force that is applied to the second conductor 320 along the radial direction of the first conductor 310.

[0051] The electrical connector in this utility model includes a male end 100, a female end 200, and a first electrical connection component 300. The first electrical connection component 300 has a first conductor 310 and a second conductor 320, one of which is disposed in the first housing 110 of the male end 100, and the other is disposed in the second housing 210 of the female end 200. When the first housing 110 of the male end 100 is inserted into the second housing 210 of the female end 200, the first conductor 310 and the second conductor 320 are sleeved to achieve electrical connection, thereby realizing the electrical connection between the male end 100 and the female end 200. Furthermore, since both the first conductor 310 and the second conductor 320 are cylindrical, the sleeved connection is tighter and the electrical connection is more stable. A spring arm structure 311 is provided at the end of the first conductor 310 facing the second conductor 320. When the first conductor 310 and the second conductor 320 are sleeved, the spring arm structure 311 undergoes elastic deformation, generating an elastic force. This elastic force is applied radially from the first conductor 310 to the second conductor 320. On the one hand, this makes the first conductor 310 and the second conductor 320 more tightly contacted in the radial direction, improving the stability of the electrical connection between the male end 100 and the female end 200. This allows the electrical connector to effectively resist separation caused by external forces or vibrations, improving the reliability of the electrical connector. On the other hand, it increases the radial normal force between the first conductor 310 and the second conductor 320, thus increasing the pressure on the first conductor 310 and the second conductor 320. The static friction between the bodies 320 makes it difficult for the first conductor 310 and the second conductor 320 to slide relative to each other along the axial direction, which in turn makes it difficult for the first housing 110 and the second housing 210 to slide relative to each other along the axial direction. This allows the male end 100 and the female end 200 to effectively resist separation caused by external forces or vibrations. Furthermore, the sleeve connection of the first conductor 310 and the second conductor 320 makes it difficult for the male end 100 and the female end 200 to move relative to each other in the radial direction. Even if the male end 100 and the female end 200 experience slight radial relative movement, the elastic arm structure 311 has a certain radial displacement compensation capability, preventing the first conductor 310 and the second conductor 320 from separating and improving the reliability of the electrical connection between the male end 100 and the female end 200.

[0052] In such Figures 1 to 5 In the illustrated embodiment, the second conductor 320 is disposed within the first housing 110 of the male end 100, and the first conductor 310 is disposed within the second housing 210 of the female end 200. In such... Figures 6 to 8 In the embodiment shown, the first conductor 310 is disposed in the first housing 110 of the male end 100, and the second conductor 320 is disposed in the second housing 210 of the female end 200.

[0053] In one embodiment, the first conductor 310 is provided with a first notch 312 at one end near the second conductor 320. At least two first notches 312 are distributed at intervals along the circumference of the first conductor 310. Each first notch 312 extends along the axial direction of the first conductor 310, so that the end of the first conductor 310 near the second conductor 320 forms a spring arm structure 311.

[0054] Reference Figure 5 In this embodiment of the invention, a first notch 312 is provided at the end of the first conductor 310 near the second conductor 320. Due to the presence of the first notch 312, the end of the first conductor 310 near the second conductor 320 is no longer a complete cylinder, but is divided into multiple independent arms, namely, spring arm structures 311. The structure is simple and easy to manufacture. The first notch 312 can be two, three, or four, as long as the functional requirements are met; no limitation is made here.

[0055] Specifically, in this embodiment, four first notches 312 are arranged at equal intervals along the circumference of the first conductor 310 to form four elastic arm structures 311. Each elastic arm structure 311 has a narrow width, which makes each elastic arm structure 311 have good elasticity. In addition, it ensures the uniformity of elasticity in all directions, so that the elastic force applied by the first conductor 310 to the second conductor 320 is more uniform.

[0056] In one embodiment, the second conductor 320 is sleeved on the outside of the first conductor 310, and the spring arm structure 311 has a first protrusion facing the outer wall of the second conductor 320, or the second conductor 320 has a second protrusion facing the inner wall of the spring arm structure 311.

[0057] Reference Figure 1 and Figure 4 In this embodiment of the invention, the second conductor 320 is sleeved on the outside of the first conductor 310, causing the multiple elastic arm structures 311 to deform inward. Compared to an embodiment where the second conductor 320 is inserted into the first conductor 310, causing the elastic arm structures 311 to deform outward, this embodiment causes less damage to the deformed parts of the elastic arm structures 311, which helps to extend the service life of the first conductor 310. Specifically, a first protrusion can be provided on the outer wall of the elastic arm structure 311, or a second protrusion can be provided on the inner wall of the second conductor 320. When the second conductor 320 is sleeved on the outside of the elastic arm structure 311, the first or second protrusion makes the elastic arm structure 311 more prone to deformation, improving the smoothness of the connection between the first conductor 310 and the second conductor 320, thereby improving the smoothness of the connection between the male end 100 and the female end 200. Specifically, in this embodiment, a groove is provided around the outer wall of the first conductor 310. The groove is located at the root of the elastic arm structure 311, which improves the elasticity of the elastic arm structure 311 and makes the end of the elastic arm structure 311 protrude to form a first protrusion. The structure is simple and easy to process.

[0058] In one embodiment, the electrical connector further includes a second electrical connection assembly 400, which includes a center pin 410 and a pin seat 420. The pin seat 420 is provided with a socket 421 corresponding to the center pin 410. One of the center pin 410 and the pin seat 420 is located inside the first housing 110, and the other is located inside the second housing 210.

[0059] The first housing 110 is inserted into the second housing 210, so that the center pin 410 is inserted into the socket 421 to achieve electrical connection.

[0060] Combination Figure 1 , Figure 2 and Figure 4 In an embodiment of this utility model, the electrical connector further includes a second electrical connection assembly 400. The second electrical connection assembly 400 includes a center pin 410 and a pin seat 420. One of the center pin 410 and the pin seat 420 is disposed in the first housing 110 of the male end 100, and the other is disposed in the second housing 210 of the female end 200. When the first housing 110 of the male end 100 is inserted into the second housing 210 of the female end 200, the center pin 410 is inserted into the socket 421 of the pin seat 420 to achieve electrical connection, thereby realizing the electrical connection between the male end 100 and the female end 200. The provision of two sets of electrical connection structures, the first electrical connection assembly 300 and the second electrical connection assembly 400, can be used to meet the transmission requirements of different electrical signals and can also be used to distribute current loads.

[0061] In such Figures 1 to 5 In the illustrated embodiment, the center needle 410 is disposed within the first housing 110 of the male end 100, and the needle seat 420 is disposed within the second housing 210 of the female end 200. In such... Figures 6 to 8 In the embodiment shown, the needle holder 420 is disposed in the first housing 110 of the male end 100, and the center needle 410 is disposed in the second housing 210 of the female end 200.

[0062] In one embodiment, the needle holder 420 passes through the interior of the first housing 110 and is coaxially arranged with the first housing 110, and the first conductor 310 is spaced out and sleeved on the exterior of the needle holder 420 and is coaxially arranged with the needle holder 420.

[0063] The center pin 410 passes through the interior of the second housing 210 and is coaxially arranged with the second housing 210. The second conductor 320 is spaced around the outside of the center pin 410 and is coaxially arranged with the center pin 410.

[0064] Reference Figure 2In this embodiment of the invention, the needle holder 420 and the first conductor 310 are disposed inside the first housing 110, i.e., both the needle holder 420 and the first conductor 310 are located at the male end 100. The center needle 410 and the second conductor 320 are disposed inside the second housing 210, i.e., both the center needle 410 and the second conductor 320 are located at the female end 200. The needle holder 420, the first conductor 310, and the first housing 110 are coaxially arranged, with the first conductor 310 located between the needle holder 420 and the first housing 110. Similarly, the center needle 410, the second conductor 320, and the second housing 210 are coaxially arranged, with the second conductor 320 located between the center needle 410 and the second housing 210. This coaxial arrangement improves the accuracy of the connection between the needle holder 420, the center needle 410, the first conductor 310, and the second conductor 320, avoiding difficulties or poor contact when the male end 100 and the female end 200 are connected.

[0065] In one embodiment, the male terminal 100 further includes a first circuit board 120, which is fixed inside the first housing 110. The pin header 420 and the first conductor 310 are electrically connected to the first circuit board 120, respectively; and / or,

[0066] The female end 200 also includes a second circuit board 220, which is fixed inside the second housing 210. The center pin 410 and the second conductor 320 are electrically connected to the second circuit board 220 respectively.

[0067] Reference Figure 3 In an embodiment of this utility model, the male terminal 100 further includes a first circuit board 120. The pin holder 420 and the first conductor 310 are electrically connected to the first circuit board 120. Both the first conductor 310 and the pin holder 420 are directly connected to the first circuit board 120, which improves the reliability of the electrical connection. Specifically, two pins are provided at the end of the first conductor 310 near the first circuit board 120. The two pins are located on both sides of the pin holder 420, and the first conductor 310 is connected to the first circuit board 120 through the two pins.

[0068] Reference Figure 5 In an embodiment of this utility model, the female end 200 further includes a second circuit board 220. The center pin 410 and the second conductor 320 are electrically connected to the second circuit board 220, respectively. Both the second conductor 320 and the center pin 410 are directly connected to the second circuit board 220, improving the reliability of the electrical connection. Specifically, two pins are provided at the end of the second conductor 320 near the second circuit board 220. The two pins are located on both sides of the center pin 410, and the second conductor 320 is connected to the second circuit board 220 through the two pins.

[0069] In one embodiment, the sidewall of the insertion hole 421 is provided with a second notch 422, and at least two second notches 422 are provided and distributed circumferentially along the needle seat 420, with each second notch 422 extending axially along the needle seat 420.

[0070] Reference Figure 5 In this embodiment of the invention, the side wall of the insertion hole 421 of the needle holder 420 is provided with a second notch 422. By providing the second notch 422, the side wall of the insertion hole 421 also has a certain elasticity. By setting the inner diameter of the insertion hole 421 to be the same as or slightly smaller than the outer diameter of the central needle 410, the area around the insertion hole 421 can elastically deform when the central needle 410 is inserted into the needle holder 420, thereby improving the tightness of the contact between the central needle 410 and the needle holder 420. Specifically, two, three, or four second notches 422 can be provided, as long as the functional requirements are met, and no limitation is made here.

[0071] In one embodiment, the electrical connector further includes a locking structure disposed between the first housing 110 and the second housing 210, for preventing the first housing 110 from separating from the second housing 210 along its own axial direction.

[0072] In embodiments of this utility model, the electrical connector further includes a locking structure. The locking structure can take the form of a snap, magnetic attraction, threaded engagement, etc., to prevent the first housing 110 and the second housing 210 from moving along the axial direction, thereby preventing the separation of the first housing 110 and the second housing 210, which in turn prevents the male end 100 from separating from the female end 200, thus improving the stability of the connection between the male end 100 and the female end 200.

[0073] In one embodiment, the locking structure includes an undercut groove 111 and a locking protrusion 211. The undercut groove 111 is disposed on the outer wall of the first housing 110, and the locking protrusion 211 is disposed on the inner wall of the second housing 210. The undercut groove 111 includes a guide groove 1111 and a locking groove 1112 that are connected to each other. The guide groove 1111 extends obliquely from one end of the first housing 110 near the second housing 210 to the other end. The locking groove 1112 extends circumferentially along the first housing 110. The locking protrusion 211 enters the locking groove 1112 through the guide groove 1111 to prevent the first housing 110 from separating from the second housing 210 along its own axial direction.

[0074] Combination Figure 2 and Figure 4In an embodiment of this utility model, the locking structure includes an undercut groove 111 and a locking protrusion 211. The locking protrusion 211 is disposed on the inner wall of the second housing 210. The undercut groove 111 includes a guide groove 1111 and a locking groove 1112. The guide groove 1111 is inclinedly disposed on the outer wall of the first housing 110. The locking groove 1112 communicates with the guide groove 1111 and extends along the circumference of the first housing 110. When the first housing 110 is inserted into the second housing 210, the locking protrusion 211 will insert into the guide groove 1111, and the first housing 110 will continue to extend axially into the second housing 210. At time 10, due to the restriction of the guide groove 1111, the first housing 110 and the second housing 210 need to rotate relative to each other at a certain angle until the locking protrusion 211 slides into the locking groove 1112. The first housing 110 can no longer extend into the second housing 210. At this time, the first housing 110 and the second housing 210 continue to rotate relative to each other, so that the locking protrusion 211 enters the locking groove 1112. The locking protrusion 211 is restricted by the locking groove 1112 and cannot move along the axial direction of the first housing 110, which makes it impossible for the first housing 110 and the second housing 210 to separate axially. The axial locking of the first housing 110 and the second housing 210 is achieved by the cooperation of the undercut groove 111 and the locking protrusion 211, which further improves the stability of the connection between the male end 100 and the female end 200, so that the electrical connector can effectively resist separation caused by external force or vibration, and improve the reliability of the electrical connector.

[0075] In one embodiment, the locking structure further includes an elastic ring 500. The outer wall of the first housing 110 is provided with a limiting protrusion. The elastic ring 500 is sleeved on the outside of the first housing 110 and is located on the side of the limiting protrusion facing the second housing 210. The locking protrusion 211 enters the locking groove 1112, so that the second housing 210 and the limiting protrusion squeeze and deform the elastic ring 500, so that the elastic ring 500 generates an elastic force along its own axis.

[0076] Reference Figures 1 to 3In this embodiment of the present invention, a limiting protrusion is provided on the outer wall of the first housing 110, and an elastic ring 500 is provided on the side of the limiting protrusion facing the second housing 210. When the locking protrusion 211 enters the locking groove 1112, that is, when the first housing 110 and the second housing 210 are axially fixed relative to each other, the locking protrusion 211 and the second housing 210 squeeze and deform the elastic ring 500. The elastic force generated by the elastic ring 500 acts on the first housing 110 and the second housing 210 on both sides, increasing the radial normal pressure between the inner wall of the locking groove 1112 and the locking protrusion 211, which also increases the static friction between the inner wall of the locking groove 1112 and the locking protrusion 211, making it difficult for the locking protrusion 211 to slide relative to the locking groove 1112, and making it difficult for the locking protrusion 211 to exit the undercut groove 111. This makes the connection between the male end 100 and the female end 200 more stable, and enables the male end 100 and the female end 200 to more effectively resist separation caused by external force or vibration.

[0077] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection 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 scope of protection of the present utility model.

Claims

1. An electrical connector, characterized in that, include: The male end includes the first housing; The female end includes a second housing; and The first electrical connection assembly includes a first conductor and a second conductor, both of which are cylindrical. One of the first conductor and the second conductor is located inside the first housing, and the other is located inside the second housing. The first conductor has a spring arm structure at one end near the second conductor. Wherein, the first housing is inserted into the second housing, so that the first conductor and the second conductor are sleeved to achieve electrical connection, and the elastic arm structure generates an elastic force applied to the second conductor in the radial direction of the first conductor.

2. The electrical connector as claimed in claim 1, characterized in that, The first conductor has a first notch at one end near the second conductor. At least two first notches are distributed circumferentially along the first conductor. Each first notch extends axially along the first conductor, so that the end of the first conductor near the second conductor forms the spring arm structure.

3. The electrical connector as described in claim 2, characterized in that, The second conductor is sleeved on the outside of the first conductor, and the elastic arm structure has a first protrusion facing the outer wall of the second conductor, or the second conductor has a second protrusion facing the inner wall of the elastic arm structure.

4. The electrical connector as claimed in claim 1, characterized in that, The electrical connector further includes a second electrical connection assembly, which includes a center pin and a pin seat. The pin seat has a socket corresponding to the center pin. One of the center pin and the pin seat is located inside the first housing, and the other is located inside the second housing. The first housing is inserted into the second housing, so that the center pin is inserted into the socket to achieve electrical connection.

5. The electrical connector as described in claim 4, characterized in that, The needle holder is inserted inside the first housing and is coaxially arranged with the first housing; the first conductor is spaced out and sleeved on the outside of the needle holder and is coaxially arranged with the needle holder. The central needle passes through the interior of the second housing and is coaxially arranged with the second housing. The second conductor is spaced out and sleeved on the exterior of the central needle and is coaxially arranged with the central needle.

6. The electrical connector as claimed in claim 5, characterized in that, The male terminal also includes a first circuit board, which is fixed inside the first housing. The pin socket and the first conductor are electrically connected to the first circuit board, respectively; and / or The female end also includes a second circuit board, which is fixed inside the second housing, and the center pin and the second conductor are electrically connected to the second circuit board respectively.

7. The electrical connector as claimed in claim 4, characterized in that, The sidewall of the insertion hole is provided with a second notch, and there are at least two second notches distributed at intervals along the circumference of the needle seat, with each second notch extending along the axial direction of the needle seat.

8. The electrical connector as claimed in claim 1, characterized in that, The electrical connector further includes a locking structure disposed between the first housing and the second housing, which is used to prevent the first housing from separating from the second housing along its own axial direction.

9. The electrical connector as claimed in claim 8, characterized in that, The locking structure includes an undercut groove and a locking protrusion. The undercut groove is located on the outer wall of the first housing, and the locking protrusion is located on the inner wall of the second housing. The undercut groove includes a guide groove and a locking groove that are connected. The guide groove extends obliquely from one end of the first housing near the second housing to the other end. The locking groove extends circumferentially along the first housing. The locking protrusion enters the locking groove through the guide groove to prevent the first housing from separating from the second housing along its own axial direction.

10. The electrical connector as claimed in claim 9, characterized in that, The locking structure also includes an elastic ring. The outer wall of the first housing is provided with a limiting protrusion. The elastic ring is sleeved on the outside of the first housing and is located on the side of the limiting protrusion facing the second housing. The locking protrusion enters the locking groove, so that the second housing and the limiting protrusion squeeze and deform the elastic ring, so that the elastic ring generates an elastic force along its own axis.

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