A throat collar finger connector

Abstract

The application discloses a kind of throat cuff finger connector, comprising: connecting spring leaf and multiple finger pieces, the connecting spring leaf includes fixed band and multiple page sheets, multiple the page sheet is symmetrically arranged in the length direction of the fixed band as center line to the both sides of the fixed band, multiple the page sheet of each side is distributed with interval, and the page sheet of both sides is staggered arrangement, the end of the page sheet away from the fixed band is provided with fixed hole, the finger piece includes main body part and fixed part on the main body part, and the fixed part is riveted in the fixed hole.The application uses keel support frame structure to replace traditional connecting spring leaf design, improves the reliability of structure, solves the problem that traditional spring leaf is easily deformed and the mechanical property is insufficient.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and more particularly to a hose clamp finger connector. Background Technology

[0002] As power transmission and distribution equipment continues to evolve towards miniaturization, lightweighting, and high integration, electrical connectors, as key components in power transmission and distribution systems, face increasingly stringent performance requirements. On the one hand, to adapt to the development trend of power transmission and distribution equipment, electrical connectors need to possess superior high-voltage resistance to meet the demand for stable operation in high-voltage environments. On the other hand, they also need to simultaneously consider environmental resistance, compactness, lightweighting, and ease of installation to meet the design requirements of miniaturization and high integration in power transmission and distribution equipment. However, the widely used traditional hose clamp contact fingers have revealed many problems in actual use. Under long-term cyclic stress or high-voltage environments, the connecting springs of traditional hose clamp contact fingers are prone to plastic deformation. With prolonged operation, this deformation can further lead to loosening of the contact fingers, or even contact finger detachment. Contact finger detachment directly causes a decrease in hose clamp preload, resulting in sealing failure, seriously affecting the performance and reliability of the electrical connector, and failing to meet the ever-increasing performance requirements of power transmission and distribution equipment for electrical connectors. Utility Model Content

[0003] The purpose of this application is to provide a hose clamp finger connector that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a hose clamp finger connector is provided, comprising: a connecting spring and a plurality of finger members. The connecting spring includes a fixing band and a plurality of flaps. The plurality of flaps are symmetrically arranged on both sides of the fixing band with the length direction of the fixing band as the center line. The plurality of flaps on each side are spaced apart and staggered on both sides. A fixing hole is provided at the end of the flap away from the fixing band. The finger member includes a main body and a fixing part protruding from the main body. The fixing part is riveted to the fixing hole.

[0006] Furthermore, the fixing part protrudes from one side of the main body, and the other side of the main body is provided with a groove corresponding to the fixing part.

[0007] Furthermore, the main body includes a first end and a second end, the finger member further includes a foot portion connected to the first end and a conductive portion connected to the second end, and the fixing portion is disposed between the first end and the second end.

[0008] Furthermore, the contact foot includes a first portion protruding from the first end along a first direction and a second portion protruding from the first end along a second direction, wherein a positioning step is formed between the second portion and the main body, wherein the first direction is the protrusion direction of the fixing part, and the second direction is perpendicular to the first direction.

[0009] Furthermore, the conductive part is arc-shaped.

[0010] Furthermore, the contact finger is riveted to one of the blades on one side, and the conductive portion is located in the gap between two adjacent blades on the other side.

[0011] Furthermore, the main body, the fixing part, the contact part, and the conductive part are integrally molded parts.

[0012] Furthermore, the two ends of the connecting spring along its length can be brought relatively close together so that the connecting spring forms a ring structure.

[0013] Furthermore, the annular structure formed by the connecting spring has a middle position that protrudes outward and both ends that are set inward; or the annular structure formed by the connecting spring has a middle position that protrudes inward and both ends that are set outward.

[0014] Furthermore, the contact finger is made of copper alloy; and / or the connecting spring is made of elastic stainless steel.

[0015] The beneficial effects of this application are as follows: the symmetrical and staggered leaf design on the connecting spring can effectively disperse stress when subjected to long-term cyclic stress or high pressure, avoid plastic deformation of the connecting spring, greatly improve structural stability, and extend service life; the contact finger and the connecting spring are tightly joined by riveting, ensuring that the contact finger does not loosen or fall off under long-term working conditions, maintaining stable hose clamp preload, preventing seal failure, and improving connection reliability and safety; at the same time, the riveting fixing method facilitates the installation, disassembly, and replacement of the contact finger, reducing installation difficulty, time cost, and maintenance cost, reducing downtime, improving equipment operating efficiency, bringing great convenience to users, and demonstrating outstanding comprehensive performance advantages. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the hose clamp contact finger connector described in the embodiments of this application;

[0018] Figure 2 The three-dimensional representation of the finger device described in the embodiments of this application Figure 1 ;

[0019] Figure 3The three-dimensional representation of the finger device described in the embodiments of this application Figure 2 ;

[0020] Figure 4 This is a side view of the fingertip device described in an embodiment of this application;

[0021] Figure 5 This is a front view of the connecting spring described in an embodiment of this application.

[0022] In the figure: 1. Connecting spring; 101. Fixing strap; 102. Leaf; 103. Fixing hole; 2. Contact finger; 201. Main body; 202. Fixing part; 203. Contact foot; 204. Conductive part; 205. Positioning step; 206. Groove; 2031. First part; 2032. Second part. Detailed Implementation

[0023] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] like Figures 1-5As shown, this embodiment provides a hose clamp finger connector, including: a connecting spring 1 and a plurality of finger members 2. The connecting spring 1 includes a fixing band 101 and a plurality of leaf pieces 102. The plurality of leaf pieces 102 are symmetrically arranged on both sides of the fixing band 101 with the length direction of the fixing band 101 as the center line. The plurality of leaf pieces 102 on each side are spaced apart, and the leaf pieces 102 on both sides are staggered. The end of the leaf piece 102 away from the fixing band 101 is provided with a fixing hole 103. The finger member 2 includes a main body 201 and a fixing part 202 protruding from the main body 201. The fixing part 202 is riveted to the fixing hole 103.

[0027] Based on the above scheme, the connecting spring 1 includes a fixing strip 101 and multiple leaf blades 102. The multiple leaf blades 102 are symmetrically distributed on both sides of the fixing strip 101 with the length direction of the fixing strip 101 as the center line, and the leaf blades 102 on each side are spaced apart, with the leaf blades 102 on both sides staggered. This special leaf blade layout allows each leaf blade 102 to work together to bear the force when subjected to external forces, dispersing stress and avoiding stress concentration. When the connector is in operation, such as under cyclic stress or high-pressure environments, this layout can effectively reduce the stress borne by a single leaf blade 102 and reduce the risk of plastic deformation of the leaf blade 102.

[0028] The contact finger 2 includes a main body 201 and a fixing part 202 protruding from the main body 201. The fixing part 202 is fixed to the fixing hole 103 at the end of the leaf 102 away from the fixing band 101 by riveting. The riveting method ensures a firm connection between the contact finger 2 and the connecting spring 1, preventing easy loosening during long-term operation. This connection method also facilitates the installation and replacement of the contact finger 2; when a contact finger 2 is damaged, it can be easily disassembled and replaced, improving the maintainability of the connector.

[0029] The hose clamp contact finger connector of this application has several significant advantages. Regarding stress dispersion and deformation resistance, the symmetrical and staggered arrangement of the leaf plates 102 on the connecting spring 1 creates a unique stress dispersion structure. Under long-term cyclic stress or high-pressure environments, the leaf plates 102 work together to evenly distribute stress, effectively avoiding the problem of plastic deformation of the connecting spring 1 due to stress concentration in traditional hose clamp contact fingers. This characteristic greatly improves the structural stability of the connector in complex working environments, extends the connector's service life, and reduces the risk of connection failure due to spring deformation.

[0030] Regarding connection stability, the contact finger 2 and the connecting spring 1 are tightly joined by riveting. This robust connection ensures that the contact finger 2 will not loosen or fall off during long-term operation. Compared to the loosening problem that is common with traditional hose clamp contact fingers, the connector of this application can maintain stable connection performance at all times, thereby ensuring the stability of the hose clamp preload and effectively preventing sealing failure caused by a decrease in preload, thus improving the reliability and safety of the connector.

[0031] In terms of ease of installation and maintenance, the riveting fixing method not only makes the installation process of the contact finger 2 and the connecting spring 1 simpler and faster, reducing installation difficulty and time costs, but also allows for easy disassembly and replacement when the contact finger 2 is damaged. This maintainable design reduces connector maintenance costs and downtime, improves equipment operating efficiency, and brings great convenience to users.

[0032] Furthermore, the fixing part 202 protrudes from one side of the main body 201, and the other side of the main body 201 is provided with a groove 206 corresponding to the fixing part 202. During the riveting process of fixing the finger member 2, since the fixing part 202 protrudes from one side of the main body 201, a large pressure and deformation will be generated when the fixing part 202 is riveted. The groove 206 on the other side of the main body 201, corresponding to the fixing part 202, provides the necessary space for riveting the fixing part 202. During riveting, the fixing part 202 is deformed by external force, and the deformed part will extend to the other side of the main body 201. At this time, the presence of the groove 206 can accommodate this deformation, ensuring that the fixing part 202 has sufficient size to deform and fix during the riveting process, so that the fixing part 202 can fit tightly with the fixing hole 103 on the connecting spring 1 to form a firm connection.

[0033] Furthermore, the main body 201 includes a first end and a second end, and the contact finger 2 further includes a contact foot 203 connected to the first end and a conductive part 204 connected to the second end. The fixing part 202 is disposed between the first end and the second end. The contact foot 203 is connected to the first end of the main body 201, and it mainly serves to make initial contact and position with the external structure. When the connector is connected to other components, the contact foot 203 can first contact the corresponding part, guiding the entire contact finger 2 to be accurately positioned. The fixing part 202 is disposed between the first end and the second end and is fixed to the fixing hole 103 of the connecting spring 1 by riveting, providing stable support and fixation for the contact finger 2, ensuring that the contact finger 2 will not be displaced or loosened during operation. The conductive part 204 is connected to the second end of the main body 201. It is a key part for realizing the electrical connection function. After the connector is connected, the conductive part 204 is in close contact with the corresponding conductive structure to form a reliable current path, realizing the transmission of electrical energy or the transmission of signals. The various parts work together to enable the contact finger 2 to stably and efficiently complete its connection and conductivity tasks.

[0034] Meanwhile, the contact portion 203 includes a first portion 2031 protruding from the first end along a first direction and a second portion 2032 protruding from the first end along a second direction. A positioning step 205 is formed between the second portion 2032 and the main body portion 201, wherein the first direction is the protrusion direction of the fixing portion 202, and the second direction is perpendicular to the first direction. When the connector is installed in the sleeve, the positioning step 205 will accurately insert into the positioning groove on the inner wall of the sleeve. At this time, the positioning step 205 and the positioning groove are tightly fitted. When subjected to the reaction force of the pipeline, the positioning groove plays an axial limiting role on the positioning step 205, restricting the displacement of the contact finger in the axial direction, so that the contact finger will not loosen or fall off due to the reaction force, thus ensuring the stability of the connection.

[0035] The mating design of the positioning step 205 and the sleeve positioning groove forms a reliable anti-disengagement mechanism, effectively preventing axial displacement of the contact fingers under the reaction force of the pipeline. This fundamentally eliminates connection failure caused by contact finger loosening, greatly improving connection reliability. Simultaneously, this design avoids material aging and stress concentration caused by repeated displacement of the contact fingers during long-term operation, reducing material damage due to stress fatigue and significantly improving the connector's temperature resistance and fatigue life, enabling it to maintain stable performance in various harsh working environments. Moreover, this design achieves high connection reliability and long service life without increasing the overall size of the connector, ensuring its compactness and meeting the development needs of miniaturization and high integration in power transmission and distribution equipment. It provides strong support for the stable operation of power transmission and distribution systems, possessing extremely high application value and market prospects.

[0036] Furthermore, the conductive part 204 is arc-shaped. This arc-shaped design is based on careful consideration of contact mechanics and electrical principles. When the connector comes into contact with the external conductive part 204, the arc-shaped conductive part 204 can better adapt to conductive contact surfaces of different shapes and sizes due to its elastic deformation characteristics. When subjected to external pressure, the arc-shaped conductive part 204 undergoes a certain degree of elastic deformation, thereby increasing the actual contact area with the contact surface, making the contact tighter and more complete. This tight contact effectively reduces contact resistance, reduces energy loss and heat generation during current transmission, and ensures stable and efficient transmission of current or signals.

[0037] In some embodiments, the contact finger 2 is riveted to one of the leaf plates 102, and the conductive part 204 is located in the gap between two adjacent leaf plates 102 on the other side. In the working scenario of the hose clamp contact finger connector, the contact finger 2 is fixed to one leaf plate 102 by riveting. This fixing method uses the strong pressure generated by riveting to tightly connect the contact finger 2 and the leaf plate 102, forming a stable mechanical connection. The conductive part 204 is located in the gap between two adjacent leaf plates 102 on the other side. This unique layout makes full use of the structural characteristics of the spaced distribution of the connecting spring 1 leaf plates 102. When the connector comes into contact with the external conductive part 204, the conductive part 204 will undergo a certain degree of elastic deformation at the gap after being subjected to compressive force. This deformation allows the conductive part 204 to fit more tightly against the external conductive part 204, increasing the actual contact area, thereby effectively reducing the contact resistance and ensuring that the current or signal can be transmitted smoothly and efficiently. At the same time, the sheet 102 provides certain support and limit for the conductive part 204, ensuring that the conductive part 204 can be elastically deformed to achieve good contact, while preventing it from being damaged due to excessive deformation.

[0038] It is worth mentioning that the main body 201, the fixing part 202, the contact part 203, and the conductive part 204 are integrally molded. This molding method eliminates the connection interfaces and potential defects that may occur with traditional connection methods (such as welding, riveting, etc.). During operation, when the connector is subjected to external forces, such as pipeline reaction forces or pressure during electrical connection, the integrally molded structure allows each part to share the force collaboratively, and the stress is evenly distributed throughout the overall structure. When the contact part 203 guides the connector into place and bears the initial external force, it quickly transmits the force to the main body 201, which then distributes it to the fixing part 202 and the conductive part 204, avoiding local stress concentration. At the same time, when the conductive part 204 achieves electrical connection, the integrally molded structure ensures smooth current transmission between the parts, reducing the increase in resistance and energy loss caused by the connection interface.

[0039] In some embodiments, the two ends of the connecting spring 1 along its length can be brought close together to form a ring structure. For example, Figure 1 As shown, the annular structure formed by the connecting spring 1 has an inwardly protruding middle section and outwardly extending ends. This unique shape allows the connecting spring 1 to fit tightly against the female end or corresponding assembly position during assembly. When the hose clamp contact connector is assembled onto the female end, the connecting spring 1 bends inward, and the entire connector is assembled within the groove 206 of the female end. This design ensures the stability and accuracy of the connector during assembly. The contact 203 achieves elastic contact with the inner wall of the sleeve, meaning that the contact 203 can flexibly adapt to changes in the shape and size of the inner wall of the sleeve when the connector is mated with the mating component. When the conductive part 204 is pressed down, the contact 203 slides axially along the inner wall of the sleeve. During this process, the connecting spring 1 is compressed and undergoes elastic deformation. Through the anti-deformation force of the connecting spring 1, sufficient positive pressure can be generated between the conductive part 204 and the mating male pin, thereby ensuring good elastic contact between them. This design not only improves the stability and reliability of the electrical connection but also reduces the risk of contact resistance and electrical failure.

[0040] It should be noted that the two ends of the connecting spring 1 are relatively close but not connected to each other to avoid deformation after connection. In addition, a stable connection can also be achieved by setting a connectable structure at both ends, depending on the actual situation. In actual use, since the hose clamp contact connector is placed on the inner wall of the sleeve, a ring structure will be formed under the force of the inner wall of the sleeve even when there is no connecting structure at both ends of the connecting spring 1.

[0041] As an optional specific implementation, the middle position of the annular structure formed by the connecting spring 1 protrudes outward, and the two ends are set inward. The assembly method is similar to the above scheme, but the specific shape of the hose clamp contact connector is different. When the hose clamp contact connector is assembled on the male end, the connecting spring 1 bends towards the male end, and the hose clamp contact connector is assembled in the male end groove 206; the contact foot 203 contacts the inner wall of the male end groove 206. During mating, the conductive part 204 presses down, and the contact foot 203 slides axially along the cylindrical wall of the male end, squeezing the connecting spring 1 to cause elastic deformation. The deformation-resistant force of the connecting spring 1 provides positive pressure for the contact between the conductive part 204 and the sleeve to maintain good elastic contact.

[0042] Specifically, the contact finger 2 is made of copper alloy; and / or the connecting spring 1 is made of elastic stainless steel. In this design, the contact finger 2 is made of copper alloy, which has excellent electrical conductivity. This allows current to flow smoothly between the contact finger 2 and the corresponding conductive parts 204, effectively reducing contact resistance and minimizing heat and energy loss caused by resistance, thus ensuring efficient transmission of electrical energy or signals. Simultaneously, the copper alloy also possesses certain mechanical properties, such as strength and toughness. When the connector is subjected to external forces, such as compression during installation or vibration during operation, it can withstand certain stress without damage, ensuring the structural integrity and stability of the contact finger 2, thereby maintaining good electrical connection performance.

[0043] The connecting spring 1 is made of elastic stainless steel, which has excellent elastic deformation capabilities. When the two ends of the connecting spring 1 are connected to form a ring structure and installed on the pipe, the elastic properties of the stainless steel allow the connecting spring 1 to undergo corresponding elastic deformation according to the size of the pipe and changes in external force. When tightening the connector, the connecting spring 1 can generate sufficient preload to tightly press the contact finger 2 onto the pipe or other conductive parts 204, ensuring the reliability of the connection. Moreover, when subjected to the reaction force generated by the pipe due to thermal expansion and contraction or external vibration, the elasticity of the stainless steel can buffer these external forces, keeping the connecting spring 1 in a pressed state against the contact finger 2 and the pipe, preventing the connection from loosening.

[0044] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A hose clamp contact finger connector, characterized in that, include: A connecting spring (1) and multiple finger elements (2) are provided. The connecting spring (1) includes a fixing band (101) and multiple leaf pieces (102). The multiple leaf pieces (102) are symmetrically arranged on both sides of the fixing band (101) with the length direction of the fixing band (101) as the center line. The multiple leaf pieces (102) on each side are spaced apart and the leaf pieces (102) on both sides are staggered. The end of the leaf piece (102) away from the fixing band (101) is provided with a fixing hole (103). The finger element (2) includes a main body (201) and a fixing part (202) protruding from the main body (201). The fixing part (202) is riveted to the fixing hole (103).

2. The hose clamp finger connector according to claim 1, characterized in that, The fixing part (202) protrudes from one side of the main body part (201), and the other side of the main body part (201) is provided with a groove (206) corresponding to the fixing part (202).

3. The hose clamp contact finger connector according to claim 2, characterized in that, The main body (201) includes a first end and a second end. The finger member (2) also includes a foot part (203) connected to the first end and a conductive part (204) connected to the second end. The fixing part (202) is disposed between the first end and the second end.

4. The hose clamp contact finger connector according to claim 3, characterized in that, The foot portion (203) includes a first portion (2031) protruding from the first end along a first direction and a second portion (2032) protruding from the first end along a second direction. A positioning step (205) is formed between the second portion (2032) and the main body portion (201). The first direction is the protrusion direction of the fixing portion (202), and the second direction is perpendicular to the first direction.

5. The hose clamp contact finger connector according to claim 3, characterized in that, The conductive part (204) is arc-shaped.

6. The hose clamp finger connector according to claim 3, characterized in that, The finger (2) is riveted to one of the leaf plates (102), and the conductive part (204) is located in the gap between two adjacent leaf plates (102) on the other side.

7. The hose clamp finger connector according to claim 3, characterized in that, The main body (201), the fixing part (202), the contact part (203), and the conductive part (204) are integrally molded parts.

8. The hose clamp finger connector according to any one of claims 1-7, characterized in that, The two ends of the connecting spring (1) along the length direction can be brought close to each other so that the connecting spring (1) forms a ring structure.

9. The hose clamp finger connector according to claim 8, characterized in that, The middle position of the annular structure formed by the connecting spring (1) protrudes outward and the two ends are set inward; or the middle position of the annular structure formed by the connecting spring (1) protrudes inward and the two ends are set outward.

10. The hose clamp contact finger connector according to any one of claims 1-7, characterized in that, The finger element (2) is made of copper alloy material; and / or the connecting spring (1) is made of elastic stainless steel material.

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