Crown spring for electric connector jack, electric connector jack and electric connector
By designing the first and second reeds arranged alternately and setting up layered misaligned contact parts, the problems of insufficient conduction capacity and service life of the existing electrical connector jack crown spring are solved, and a higher Conductivity and longer service life.
Patent Information
- Application Number
- CN202420997470.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The crown springs in existing electrical connector sockets have shortcomings in conduction capacity and service life, and cannot meet the requirements of high current transmission.
A crown spring for electrical connector socket is designed, which consists of an alternately arranged first reed and a second reed. The contact portions of the first reed and the second reed are arranged in a misaligned manner to increase the contact point. The quantity improves the conduction capacity and avoids the smallest inner diameter of the crown spring, extending the service life.
By increasing the number of contact points, the current carrying capacity and conduction capacity are improved, while extending the service life of the product, ensuring stable and reliable connection.
Smart Images
Figure CN222515037U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric connectors, in particular to a crown spring for an electric connector jack, an electric connector jack and an electric connector. Background Art
[0002] In the field of electrical connector technology, some electrical connector sockets are usually provided with crown springs, the purpose of which is to achieve a conductive connection between the electrical connector socket and the female pin. With the application trend of new energy and high current transmission, the reliability and stability of the contact transmission between the socket and the pin are becoming more and more stringent. The existing crown spring is generally arranged in a cylindrical shape, and a rectangular spring leaf is arranged between the connecting strips at both ends. A raised contact point is formed in the middle of the spring leaf, facing the inner axis of the cylinder, and electrical contact is made with the pin inserted into the socket through these contact points, thereby playing the role of conducting the circuit. Since these contact points are concentrated in the middle of the spring leaf, the number of contact points can only be set accordingly according to the number of spring leaves. The number of contact points is small, resulting in a small contact area for the conductive connection between the pin and the spring leaf, which affects the conduction ability.
[0003] On the other hand, the smallest inner diameter of the crown spring is generally in the middle of the spring leaf, which is prone to wear and degradation during multiple insertions and extractions, resulting in unstable insertion and extraction forces, which in turn seriously affects the service life of the crown spring.
[0004] Therefore, the existing crown spring still has deficiencies in terms of conduction capacity and service life, and cannot meet the requirements of conduction capacity and service life of electrical connectors in large current transmission. Utility Model Content
[0005] The utility model aims to provide a crown spring, which has strong conducting ability and long service life and can ensure stable and reliable connection.
[0006] Another object of the present utility model is to provide an electrical connector jack using the crown spring.
[0007] Another object of the utility model is to provide an electrical connector using the crown spring and the electrical connector jack.
[0008] Based on the above purpose, the utility model adopts the following technical solutions:
[0009] A crown spring for an electrical connector jack comprises: a crown spring body, the crown spring body comprising a first end band and a second end band provided at two ends, a plurality of first spring leaves and second spring leaves being alternately arranged between the first end band and the second end band; the two ends of the first spring leaf are respectively connected to the first end band and the second end band; one end of the second spring leaf is connected to the first end band or the second end band, and the other end is cantilevered toward the first end band or the second end band; the second spring leaves located on both sides of the first spring leaf have opposite cantilevering directions.
[0010] Furthermore, the first spring piece has at least one first contact portion bent radially inwardly along the crown spring body, and the second spring piece has at least one second contact portion bent radially inwardly along the crown spring body, and the first contact portion and the second contact portion are staggered.
[0011] Furthermore, the first spring leaf has two first contact portions bent radially inwardly along the crown spring body, and the second spring leaf has two second contact portions bent radially inwardly along the crown spring body, and the two first contact portions and the two second contact portions are staggered.
[0012] Furthermore, the crown spring body is a cylindrical body, the first reed and the second reed are structures that gradually bend toward the inside of the cylindrical body from both ends to the middle, the first contact portion deviates from the middle of the first reed and is distributed on both sides of the middle of the first reed, and the second contact portion deviates from the middle of the second reed and is distributed on both sides of the middle of the second reed.
[0013] Furthermore, the first contact portion and the second contact portion have a recess formed toward the inner surface relative to the outer surface of the cylindrical body.
[0014] Further, the recessed center of the first contact portion has the same radial depth relative to the outer surface of the cylindrical body toward the inner surface, and the recessed center of the second contact portion has a different radial depth relative to the outer surface of the cylindrical body toward the inner surface.
[0015] Furthermore, the second spring sheet is provided with a fixed end and a suspended free end, and a third contact portion is provided on a side of the free end facing the inner wall of the insertion hole.
[0016] Further, the third contact portion has a protrusion formed on one side facing the sleeve.
[0017] The utility model also provides an electric connector jack, comprising: a sleeve and the crown spring, wherein the crown spring is installed in the sleeve.
[0018] The utility model also provides an electric connector, comprising: a plug pin and the above-mentioned electric connector jack, wherein the plug pin is inserted into the electric connector jack to realize electrical connection.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] The crown spring provided by the utility model has a first spring piece and a second spring piece arranged alternately, two first contact portions are stamped on the first spring piece, and two second contact portions are stamped on the second spring piece, and the first contact portion and the second contact portion between two adjacent spring pieces have different heights relative to the end of the crown spring body, that is, a layered staggered arrangement. Such a design increases the number of contact points, improves the current carrying capacity, and ultimately improves the conduction capacity of the product.
[0021] The crown spring provided by the utility model is installed inside the socket of the electrical connector. Since the first contact portion and the second contact portion are arranged in layers with a staggered arrangement, the pin will not contact the first contact portion and the second contact portion at the same time when inserted into the socket, thereby ensuring a good plugging and unplugging feel and reducing the plugging and unplugging force to a certain extent.
[0022] In addition, the first contact portion and the second contact portion of the crown spring provided by the utility model avoid the smallest portion of the inner diameter of the crown spring body, thereby greatly extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the crown spring provided by the embodiment of the utility model curled into a cylindrical body;
[0024] Figure 2 It is a schematic diagram of a partial planar structure of a crown spring when it is unfolded provided by an embodiment of the utility model;
[0025] Figure 3 It is a schematic cross-sectional structure diagram of an electrical connector in a plug-in state provided by an embodiment of the utility model;
[0026] Figure 4 yes Figure 3 A schematic diagram of a partially enlarged cross-sectional structure when the first reed is in contact with the pin and the socket of the electrical connector;
[0027] Figure 5 It is another cross-sectional structural schematic diagram of the electrical connector in the plug-in state provided by the embodiment of the utility model;
[0028] Figure 6 yes Figure 5 A schematic diagram of a partially enlarged cross-sectional structure when the second reed is in contact with the pin and the socket of the electrical connector;
[0029] Figure 7It is a schematic diagram of the three-dimensional structure of a crown spring curled into a cylindrical body provided by another embodiment of the utility model. DETAILED DESCRIPTION
[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of a crown spring curled into a cylindrical body according to an embodiment of the utility model. Figure 2 is a schematic diagram of a partial planar structure of a crown spring according to an embodiment of the utility model when it is unfolded, wherein the plane shown corresponds to Figure 1 The outer surface of the cylindrical body shown, the plane not shown corresponds to Figure 1 The inner surface of the cylindrical body shown.
[0037] like Figure 1 and Figure 2As shown, the crown spring body 100 is curled to form a cylindrical body, with a break in the axial direction, a first end band 101 and a second end band 102 at both ends, and a plurality of first spring pieces 103 and second spring pieces 104 are alternately arranged between the first end band 101 and the second end band 102. The two ends of the first spring piece 103 are respectively connected to the first end band 101 and the second end band 102; one end of the second spring piece 104 is connected to the first end band 101 or the second end band 102, and the other end is suspended toward the first end band 101 or the second end band 102. Specifically, the second spring piece 104 is provided with a fixed end and a suspended free end, and the fixed end is either connected to the first end band 101 or the second end band 102. If the fixed section is connected to the first end band 101, the corresponding free end is suspended toward the second end band 102; if the fixed section is connected to the second end band 102, the corresponding free end is suspended toward the first end band 101. In this embodiment, the second reeds 104 located on both sides of the first reed 103 have opposite overhanging directions.
[0038] like Figure 1 and Figure 2 As shown, the crown spring body 100 is a cylindrical body, the first spring piece 103 and the second spring piece 104 are structures that are gradually bent inward from both ends to the middle, the first spring piece 103 has at least one first contact portion 1031 bent inward along the radial direction of the crown spring body 100, and the second spring piece 104 has at least one second contact portion 1041 bent inward along the radial direction of the crown spring body 100, and the first contact portion 1031 and the second contact portion 1041 have a depression formed relative to the outer surface of the cylindrical body toward the inner surface. At the same time, the center of the depression of the first contact portion 1031 has the same radial depth relative to the outer surface of the cylindrical body toward the inner surface, and the center of the depression of the second contact portion 1041 has a different radial depth relative to the outer surface of the cylindrical body toward the inner surface, in order to ensure that the first spring piece 103 forms an effective contact with the plug pin, and the free end of the second spring piece 104 can also form an effective contact with the plug pin during multiple plugging and unplugging processes. The reason for such design is that the second spring piece 104 is provided with a free end. In order to prevent the free end from failing to form effective contact with the insertion pin during multiple insertion and removal processes, the second contact portion 1041 of the second spring piece 104 close to the free end has a radial depth deeper toward the inner surface relative to the outer surface of the cylindrical body.
[0039] Among them, the first contact portion 1031 and the second contact portion 1041 are arranged in a staggered manner. It can be understood that they are arranged in a staggered manner according to a certain rule. The staggered arrangement here means that the recessed centers of the first contact portion 1031 and the second contact portion 1041 have different radial dimensions relative to the crown spring body 100. Therefore, the pin will not contact and connect with the first contact portion 1031 and the second contact portion 1041 at the same time during the insertion process of the electrical connector jack, which is conducive to reducing the insertion and extraction force. It is easy to understand that when the first spring piece 103 and the second spring piece 104 are provided with multiple first contact portions 1031 and multiple second contact portions 1041, the contact points between the pin and the crown spring body are significantly increased, which is conducive to improving the current carrying capacity and ultimately improving the conduction capacity of the product.
[0040] like Figures 1 to 6 As shown, in this embodiment, the first spring piece 103 and the second spring piece 104 are respectively provided with two first contact portions 1031 and two second contact portions 1041. The two first contact portions 1031 deviate from the middle of the first spring piece 103 and are distributed on both sides of the middle of the first spring piece 103, and the two second contact portions 1041 deviate from the middle of the second spring piece 104 and are distributed on both sides of the middle of the second spring piece 104. The two first contact portions 1031 on the first spring piece 103 and the two second contact portions 1041 adjacent to the first spring piece 104 are arranged in a layered staggered manner, that is, the concave centers of the first contact portions 1031 and the concave centers of the second contact portions 1041 have different heights relative to the end of the crown spring body 100, and are arranged in an alternating staggered manner. Specifically, if the height of the depression center of the first contact portion 1031 (the point in contact with the plug pin 105) relative to the bottom of the second end band 102 is H1, H3, and the height of the depression center of the second contact portion 1041 (the point in contact with the plug pin 105) relative to the bottom of the second end portion 102 is H2, H4, then H1≠H2, H3≠H4 are satisfied. When the crown spring of this embodiment is installed in the electrical connector socket, the positions of the first end band 101 and the second end band 102 in the electrical connector socket can be arbitrarily selected, that is, the first end band 101 and the second end band 102 can be oriented toward the opening position of the electrical connector socket, or toward the bottom position of the electrical connector socket. Therefore, when the plug pin 105 is inserted into the electrical connector socket 106, it will not contact and connect with the two first contact portions 1031 and the two second contact portions 1041 at the same time, that is, they contact each other alternately. This arrangement increases the contact points between the plug pin 105 and the crown spring body 100, which is conducive to improving the current carrying capacity and the conduction capacity. Moreover, the operator has a better plugging and unplugging feel, which also reduces the plugging and unplugging force to a certain extent.
[0041] In addition, the depression center of the first contact portion 1031 and the depression center of the second contact portion 1041 have the same depth relative to the outer surface of the cylindrical body toward the inner surface. It is easy to understand that the points where the first contact portion 1031 and the second contact portion 1041 contact the pin 105 have the same inner diameter relative to the cylindrical body, ensuring that the pin 105 maintains a comparable clamping force and insertion and extraction force when in contact with the first contact portion 1031 and the second contact portion 1041. It is worth noting that the first contact portion 1031 and the second contact portion 1041 both avoid the smallest inner diameter of the crown spring body 100, avoiding the defect that the smallest inner diameter is easily subdued during multiple insertion and extraction processes, further extending the service life of the product.
[0042] like Figure 4 and Figure 6 As shown, the electrical connector jack 106 includes a jack body, a sleeve 107 disposed inside the jack body, and a crown spring. The sleeve 107 is cylindrical and has a receiving cavity for receiving the crown spring. The receiving cavity passes through one end of the sleeve 107, and the other end of the sleeve 107 is closed. The crown spring body 100 is installed in the sleeve 107, and the first end band 101 and the second end band 102 are both attached to the inner wall of the receiving cavity. Figure 2 As shown, the second spring piece 104 is provided with a fixed end and a suspended free end. In order to form a reliable elastic supporting force between the crown spring body 100 and the electrical connector jack 106, a third contact portion 1042 is further provided on the side of the free end facing the inner wall of the sleeve 107. The third contact portion 1042 has a protrusion formed toward the side of the sleeve 107, and the protrusion elastically abuts against the inner wall surface of the sleeve 107. The protrusion has a contact surface abutting against the inner wall surface of the sleeve 107, and the contact surface can be any structural shape that can form an effective contact with the sleeve 107. In this embodiment, the protrusion is an arc-shaped convex surface, which not only provides a reliable elastic supporting force for the crown spring body 100, but also facilitates smoother insertion and removal of the pin 105.
[0043] Another embodiment of the utility model further provides a crown spring, such as Figure 7 As shown, the difference is that the second spring pieces 104 on both sides of the first spring piece 103 have the same overhanging direction, that is, the second spring pieces 104 are overhanging in the same direction. In this embodiment, the overhanging direction of the second spring piece 104 is uniformly toward the second end band 102, so that the insertion and extraction force of the pin is softer. In addition, a plurality of installation teeth are provided at the bottom of the second end band 102, which is convenient for the installer to distinguish the installation direction and prevent wrong installation. When the crown spring of this embodiment is installed inside the socket of the electrical connector, the first end band 101 and the second end band 102 are attached to the inner wall surface of the sleeve 107, the first end band 101 is facing the opening position of the socket, and the second end band 102 is facing the bottom position of the socket.
[0044] Another embodiment of the utility model provides an electrical connector jack, comprising a jack body, a sleeve disposed inside the jack body, and a crown spring of any of the above embodiments. The sleeve is cylindrical and has a receiving cavity for receiving the crown spring, the receiving cavity passes through one end of the sleeve, and the other end of the sleeve is closed. The crown spring is installed in the sleeve, and the first end band and the second end band both fit the inner wall of the receiving cavity.
[0045] Another embodiment of the utility model provides an electrical connector, comprising a plug pin and the electrical connector jack of the above embodiment, wherein the plug pin is inserted into the electrical connector jack to realize electrical connection.
[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A crown spring for an electrical connector jack, characterized in that: include: A crown spring body (100), the crown spring body (100) comprising a first end band (101) and a second end band (102) provided at two ends, a plurality of first spring leaves (103) and second spring leaves (104) being alternately arranged between the first end band (101) and the second end band (102); Two ends of the first reed (103) are respectively connected to the first end band (101) and the second end band (102); One end of the second reed (104) is connected to the first end band (101) or the second end band (102), and the other end is cantilevered toward the first end band (101) or the second end band (102); the second reeds (104) located on both sides of the first reed (103) have opposite cantilevering directions.
2. The crown spring according to claim 1, characterized in that: The first spring leaf (103) has at least one first contact portion (1031) bent inwardly along the radial direction of the crown spring body (100), and the second spring leaf (104) has at least one second contact portion (1041) bent inwardly along the radial direction of the crown spring body (100), and the first contact portion (1031) and the second contact portion (1041) are arranged in a staggered manner.
3. The crown spring according to claim 2, characterized in that: The first spring leaf (103) has two first contact portions (1031) bent inwardly along the radial direction of the crown spring body (100), and the second spring leaf (104) has two second contact portions (1041) bent inwardly along the radial direction of the crown spring body (100), and the two first contact portions (1031) and the two second contact portions (1041) are staggered.
4. The crown spring according to claim 3, characterized in that: The crown spring body (100) is a cylindrical body, the first spring leaf (103) and the second spring leaf (104) are structures that gradually bend toward the inside of the cylindrical body from both ends to the middle, the first contact portion (1031) deviates from the middle of the first spring leaf (103) and is distributed on both sides of the middle of the first spring leaf (103), and the second contact portion (1041) deviates from the middle of the second spring leaf (104) and is distributed on both sides of the middle of the second spring leaf (104).
5. The crown spring according to claim 4, characterized in that: The first contact portion (1031) and the second contact portion (1041) have recesses formed toward the inner surface relative to the outer surface of the cylindrical body.
6. The crown spring according to claim 5, characterized in that: The recessed center of the first contact portion (1031) has the same radial depth relative to the outer surface of the cylindrical body toward the inner surface, and the recessed center of the second contact portion (1041) has a different radial depth relative to the outer surface of the cylindrical body toward the inner surface.
7. The crown spring according to claim 1, characterized in that: The second spring leaf (104) is provided with a fixed end and a suspended free end, and a third contact portion (1042) is provided on a side of the free end facing the inner wall of the sleeve (107).
8. The crown spring according to claim 7, characterized in that: The third contact portion (1042) has a protrusion formed on one side facing the sleeve (107).
9. An electrical connector jack, characterized in that: include: A sleeve and a crown spring as claimed in any one of claims 1 to 8, wherein the crown spring is installed in the sleeve.
10. An electrical connector, characterized in that: include: A pin and an electrical connector jack as claimed in claim 9, wherein the pin is inserted into the electrical connector jack to achieve electrical connection.