Contact spring for double charging stations

Abstract

The utility model discloses a double charging station contact spring, which comprises a fixed part and a contact part, the fixed part comprises a first horizontal straight rod and a spiral elastic piece, one end, far away from the spiral elastic piece, of the first horizontal straight rod is firstly bent downwards to form a lower clamping part and then bent upwards to form an upper clamping part, and the tail end of the first horizontal straight rod is bent downwards to form a lockrand. The upper end of the spiral elastic piece is connected with one end of a second horizontal straight rod in the contact part, the other end of the second horizontal straight rod is bent towards the spiral elastic piece to form a first supporting part, the first supporting part is bent twice in the same direction to form a second supporting part, and the second supporting part is bent reversely to form a third supporting part. The end, far away from the second supporting part, of the third supporting part is provided with a horizontal abutting ring. According to the utility model, the installation stability and firmness of the first horizontal straight rod on the circuit board are good; force can be dispersed step by step until stress at all positions is evenly spread, the deformation quantity is small, and the problem that the service life of a product is shortened due to repeated excessive deformation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of springs, and in particular relates to a double-charging platform contact spring. Background Art

[0002] The dual charging station contact spring is usually set up by cooperating with two springs to provide force from different directions during charging contact, ensuring close contact between the charging contacts and the charging interface and ensuring charging stability. In this process, the elastic deformation of the spring is required to achieve close contact between the charging contacts and the charging interface, which requires high stability of the contact spring. The external force of the existing contact spring charging is often concentrated in a local area, which can easily cause local excessive force, resulting in deformation and damage of the elastic components, affecting the stability of the contact pressure, lacking a buffering and force dispersion mechanism, and losing elasticity after multiple charges, resulting in a short product life. Utility Model Content

[0003] The purpose of the present invention is to provide a dual charging platform contact spring to solve the problems mentioned above, such as poor installation stability of existing springs and the like.

[0004] The utility model is realized through the following technical solutions: a dual charging platform contact spring, comprising a fixing part for being fixedly connected to a circuit board and a contact part elastically supported at one end of the fixing part, the fixing part comprising a first horizontal straight rod and a spiral elastic part located at one end of the first horizontal straight rod, the end of the first horizontal straight rod away from the spiral elastic part is first bent downward to form a lower clamping part, then bent upward to form an upper clamping part, and the end is further bent downward to form a lock edge, the upper end of the spiral elastic part is connected to one end of the second horizontal straight rod in the contact part, the other end of the second horizontal straight rod is bent toward the direction close to the spiral elastic part to form a first support part, the first support part is bent twice in the same bending direction to form a second support part, and the second support part is bent in the opposite direction to form a third support part, and the end of the third support part away from the second support part is provided with a horizontal abutment ring.

[0005] Furthermore, the first horizontal straight rod, the upper clamping portion, the lower clamping portion and the locking edge are all located on the same vertical plane.

[0006] Furthermore, the second horizontal straight rod, the first support portion, the second support portion and the third support portion are all located on the same vertical plane.

[0007] Furthermore, the helical elastic member is a torsion spring.

[0008] Furthermore, the maximum horizontal distance between the contact portion and the spiral elastic member is smaller than the minimum horizontal distance between the lower clamping portion and the spiral elastic member.

[0009] Furthermore, the angle between the second horizontal straight rod and the first support portion is 85°, the angle between the first support portion and the second support portion is 150°, and the angle between the second support portion and the third support portion is 95°.

[0010] Furthermore, the horizontal height of the upper clamping portion is greater than the horizontal height of the first horizontal straight rod.

[0011] When the utility model is installed, the first horizontal straight rod in the fixing part is parallel to the surface of the circuit board, the lower clamping part at one end of the first horizontal rod is embedded downward in the circuit board to form a clamping fixation, the upper clamping part is located on the circuit board and is in close contact with the surface, and the locking edge at the end is clamped downward in the circuit board, so that the lower clamping part is embedded and fixed, and the upper clamping part is clamped and fixed, and the two fixing methods share the same edge, so that the installation stability and firmness of the first horizontal straight rod on the circuit board are effectively guaranteed; by arranging the first supporting part, the second supporting part and the third supporting part bent in the same direction and the third supporting part bent in the opposite direction, when the horizontal abutting ring at the end of the third supporting part is pressed downward by force, the force received is dispersed step by step until it reaches the spiral elastic part, and the force is evenly distributed everywhere, so that the deformation of each part is small, thereby avoiding the problem of repeated excessive deformation leading to shortened product service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the main view of the present utility model.

[0013] Figure 2 It is a top view of the present utility model.

[0014] The reference numerals are as follows:

[0015] 1. Fixing part; 11. First horizontal straight rod; 12. Lower clamping part; 13. Upper clamping part; 14. Locking edge; 2. Contact part; 21. Second horizontal straight rod; 22. First supporting part; 23. Second supporting part; 24. Third supporting part; 25. Horizontal abutting ring; 3. Spiral elastic member. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to specific examples and accompanying drawings.

[0017] like Figure 1-Figure 2As shown, the utility model describes a dual charging platform contact spring, comprising a fixing part 1 for being fixedly connected to a circuit board and a contact part 2 elastically supported at one end of the fixing part 1, the fixing part 1 comprising a first horizontal straight rod 11 and a spiral elastic member 3 located at one end of the first horizontal straight rod 11, the end of the first horizontal straight rod 11 away from the spiral elastic member 3 is first bent downward to form a lower clamping part 12, and then bent upward to form an upper clamping part 13, and the end is further bent downward to form a lock edge 14, the upper end of the spiral elastic member 3 is connected to one end of the second horizontal straight rod 21, and the other end of the second horizontal straight rod 21 is bent toward the direction close to the spiral elastic member 3 to form a first support part 22, the first support part 22 is bent twice in the same bending direction to form a second support part 23, and the second support part 23 is bent in the opposite direction to form a third support part 24, and the end of the third support part 24 away from the second support part 23 is provided with a horizontal abutment ring 25.

[0018] During installation, the first horizontal straight rod 11 in the fixing part 1 is parallel to the surface of the circuit board, and the lower clamping part 12 at one end of the first horizontal rod is embedded downward into the circuit board to form a clamping fixation. The upper clamping part 13 is located on the circuit board and is close to the surface, and the locking edge 14 at the end is clamped downward into the circuit board, so that the lower clamping part 12 is embedded and clamped and fixed, and the upper clamping part 13 is clamped and fixed, and the two fixing methods share the same edge, so that the installation stability and firmness of the first horizontal straight rod 11 on the circuit board are effectively guaranteed; by setting the first support part 22, the second support part 23 and the third support part 24 bent in the same direction and the reverse bending, when the horizontal abutting ring 25 at the end of the third support part 24 is pressed downward by force, the force is gradually dispersed until it reaches the spiral elastic part 3. The force is evenly distributed everywhere, so that the deformation of each part is small, thereby avoiding the problem of repeated excessive deformation leading to shortened product service life.

[0019] In the embodiment of the present invention, the first horizontal straight rod 11, the upper clamping portion 13, the lower clamping portion 12 and the locking edge 14 are all located on the same vertical plane, which optimizes the rationality of the structure and is conducive to stable fixation on the circuit board.

[0020] The second horizontal straight rod 21, the first support part 22, the second support part 23 and the third support part 24 in the embodiment of the utility model are all located on the same vertical plane, which enhances the structural stability and elastic recovery ability of the entire contact spring, ensures that good performance can always be maintained during multiple charging contacts, and guarantees stability and efficiency during the use of the product.

[0021] The spiral elastic member 3 in the embodiment of the present invention is a torsion spring, which can store and release a large elastic potential energy in a smaller space. This enables the contact spring to effectively buffer the impact force when subjected to external pressure. The torsion spring has high structural stability and can withstand repeated compression and tension for a long time. It is not easy to undergo plastic deformation or damage, thereby improving the overall service life and reliability of the dual charging platform contact spring and ensuring the continuous and stable charging process.

[0022] In the embodiment of the present invention, the maximum horizontal spacing between the contact portion 2 and the spiral elastic member 3 is smaller than the minimum horizontal spacing between the lower clamping portion 12 and the spiral elastic member 3, that is, the length of the first horizontal straight rod 11 is longer, which can enhance the stability of the entire structure. During the charging process, even if it is slightly disturbed by the outside world or forces in different directions, it can ensure stable contact between the contact portion 2 and the charging platform, maintain a good charging connection state, reduce problems such as charging interruption or low charging efficiency due to poor contact, and improve the performance and reliability of the dual charging platform.

[0023] In the embodiment of the present invention, the angle between the second horizontal straight rod 21 and the first support part 22 is 85°, the angle between the first support part 22 and the second support part 23 is 150°, and the angle between the second support part 23 and the third support part 24 is 95°. The design of the second horizontal straight rod 21 and the first support part 22 being close to a right angle makes the direction of the force change more sharply when it is transmitted from the second horizontal straight rod 21 to the first support part 22, which is conducive to redirecting and partially dispersing the force in the initial stage, creating favorable conditions for subsequent force conduction and dispersion; the angle of 150° between the first support part 22 and the second support part 23 makes it possible to change direction and disperse the force in a relatively gentle but effective manner when the force is transmitted between the two components, avoiding local stress concentration that may be caused by sudden changes in force, while ensuring the reasonable distribution of force over a larger range. The 95° angle between the second support portion 23 and the third support portion 24 further optimizes the force transmission path, allowing the force to adjust its direction again in a change close to a right angle, so that the force transmitted from the contact portion 2 is evenly applied to the spiral elastic member 3 after multiple reasonable direction changes and dispersions, which can effectively prevent local excessive deformation caused by unreasonable force, and ensure the stability and elastic recovery ability of the entire structure when under pressure, thereby extending the service life of the dual charging platform contact spring and improving its reliability and performance during the charging process.

[0024] In the embodiment of the present invention, the horizontal height of the upper clamping part 13 is greater than the horizontal height of the first horizontal straight rod 11. When installed on the circuit board, the upper clamping part 13 with a higher horizontal height first contacts the circuit board, which can form a certain support and positioning effect in the initial installation stage. In the subsequent fixing operation, this height difference enables the upper clamping part 13 to produce a tighter clamping effect when it is fitted with the circuit board. Combined with the fixation of the lower clamping part 12 and the locking edge 14, the installation firmness of the entire contact spring on the circuit board is greatly enhanced, effectively resisting external force interference such as vibration and shaking that may occur during the operation of the equipment, ensuring the stable position of the contact spring, and avoiding the impact of displacement on charging performance.

[0025] The above embodiments are only preferred implementation methods of the present invention and are only used to explain the present invention rather than to limit the present invention. Any changes, replacements, combinations, simplifications, modifications, etc. made by those skilled in the art without departing from the spirit and principles of the present invention shall be considered as equivalent replacement methods and shall be included in the scope of protection of the present invention.

Claims

1. A dual charging station contact spring, characterized by: The invention comprises a fixing portion (1) for fixing on a circuit board and a contact portion (2) elastically supported at one end of the fixing portion (1), wherein the fixing portion (1) comprises a first horizontal straight rod (11) and a spiral elastic member (3) located at one end of the first horizontal straight rod (11), wherein the end of the first horizontal straight rod (11) away from the spiral elastic member (3) is first bent downward to form a lower clamping portion (12), then bent upward to form an upper clamping portion (13), and the end is further bent downward to form a locking edge (14), and the spiral elastic member (3) is bent downward to form a locking edge (14). ) is connected to one end of a second horizontal straight rod (21) in the contact portion (2), the other end of the second horizontal straight rod (21) is bent toward a direction close to the spiral elastic member (3) to form a first support portion (22), the first support portion (22) is bent twice in the same bending direction to form a second support portion (23), and the second support portion (23) is further bent in the opposite direction to form a third support portion (24), and a horizontal abutment ring (25) is provided at one end of the third support portion (24) away from the second support portion (23).

2. The dual charging station contact spring according to claim 1, characterized in that: The first horizontal straight rod (11), the upper clamping portion (13), the lower clamping portion (12) and the locking edge (14) are all located on the same vertical plane.

3. The dual charging station contact spring according to claim 1, characterized in that: The second horizontal straight rod (21), the first support portion (22), the second support portion (23) and the third support portion (24) are all located on the same vertical plane.

4. The dual charging station contact spring according to claim 1, characterized in that: The helical elastic member (3) is a torsion spring.

5. The dual charging station contact spring according to claim 1, characterized in that: The maximum horizontal distance between the contact portion (2) and the spiral elastic member (3) is smaller than the minimum horizontal distance between the lower clamping portion (12) and the spiral elastic member (3).

6. The dual charging station contact spring according to claim 1, characterized in that: The included angle between the second horizontal straight rod (21) and the first support portion (22) is 85°, the included angle between the first support portion (22) and the second support portion (23) is 150°, and the included angle between the second support portion (23) and the third support portion (24) is 95°.

7. The dual charging station contact spring according to claim 1, characterized in that: The horizontal height of the upper clamping portion (13) is greater than the horizontal height of the first horizontal straight rod (11).

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