Damping low-abrasion butt joint type contact
By setting up a triangular push plate and contact docking assembly in the contact, combined with structures such as vertical sliding cavity and return spring, the friction and vibration problems during contact docking are solved, and the docking effect with low wear and high reliability is achieved .
Patent Information
- Application Number
- CN202421147595.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In the prior art, contacts are prone to friction and vibration when they are connected, resulting in a shortened service life and may cause tip discharge and short circuits.
A shock-absorbing and low-wear docking contact is designed. By setting a triangular push plate and contact docking assembly in the main contact and auxiliary contact, low friction docking is achieved, and through vertical sliding cavity and return spring. , reduce vibration and wear.
This design achieves stable contact of the contacts, reduces friction and vibration, extends the service life of the contacts, and eliminates tip discharge during docking, improving the reliability of the circuit.
Smart Images
Figure CN222462629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit docking, in particular to a shock-absorbing and low-wear docking contact. Background Art
[0002] The contact is one of the key components of the switch. 其 The main function is to connect or disconnect the circuit. The contact is required to have good contact performance and conductivity. For electrical appliances with smaller current capacity, the contacts are usually made of silver. The contacts include main contacts and auxiliary contacts. The main contacts are located in the main circuit. The task of the main circuit is to perform the transmission and control of electrical energy. The auxiliary contacts (contacts) are located in the auxiliary circuit. The task of the auxiliary circuit is to perform signal amplification, control and transmission.
[0003] In the prior art, when the contacts are docked, friction and vibration between the main contact and the auxiliary contact are often unavoidable, thereby affecting the service life of the contacts. For some circuits that need to be opened and closed frequently, the contacts will be quickly worn and the contacts will need to be replaced frequently. Vibration during docking will cause a brief tip discharge at the initial contact between the main contact and the auxiliary contact. Long-term and frequent opening and closing of the contacts will increase the frequency of tip discharge, which will also affect the service life of the contacts and even cause a short circuit in the entire circuit. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a shock-absorbing and low-wear docking contact, which has stable contact and can achieve low-friction docking, thus solving the problem of friction vibration between the main contact and the auxiliary contact when the contacts are docked.
[0006] (II) Technical solution
[0007] In order to achieve the above-mentioned purpose of having stable contact and being able to achieve low-friction docking, the utility model provides the following technical solutions: a shock-absorbing and low-wear docking contact, comprising a main contact, a contact inner cavity is arranged in the main contact, triangular push plates are arranged on the left and right sides of the contact inner cavity, a contact docking assembly is arranged between the triangular push plates, the triangular push plates on both sides are respectively connected to the left and right sides of the contact docking assembly, the center of the contact docking assembly coincides with the center of the vertical sliding cavity arranged on the upper and lower cover plates of the main contact, the vertical sliding cavity extends to the outer side surfaces of the upper and lower cover plates of the main contact, the main contact is docked with the auxiliary contact through the triangular push plate, the auxiliary contact comprises a back connecting plate, triangular sliding plates are symmetrically arranged on the left and right sides of the back connecting plate, and an auxiliary connecting contact is arranged at the center of the triangular sliding plate through an extension rod.
[0008] Preferably, the contact docking assembly is a left-right symmetrical structure, and the contact docking assembly includes a fixing part connected to the triangular push plate, and the upper and lower ends of the fixing part are respectively connected to the upper and lower swing rods through a rotating cylinder, the upper end of the swing rod is connected to the downward pressing docking contact, and the lower end of the swing rod is connected to the rising docking contact.
[0009] Preferably, buffer plates are provided on the left and right sides of the downward pressing butt contact point, and their outer dimensions are the same as those of the buffer grooves provided on the left and right sides of the upward butt contact point.
[0010] Preferably, a long strip of contact plate is provided on the contact surface between the downward pressing contact point and the upward pressing contact point.
[0011] Preferably, the fixing member is provided with an upper and lower swing rods, between which a return spring is provided via a sliding cylindrical block.
[0012] Preferably, the extension rod is provided with an inner cavity, and the external wire is connected to the auxiliary connection contact through the inner cavity.
[0013] (III) Beneficial effects
[0014] Compared with the prior art, the utility model provides a shock-absorbing and low-wear docking contact, which has the following beneficial effects:
[0015] 1. This kind of shock-absorbing and low-wear docking contact cooperates with the main contact and the auxiliary contact through the contact docking assembly, so that when the column contact and the auxiliary contact are docked or separated, there will be no friction in the connecting part, avoiding the irreversible wear of the contact caused by long-term friction, so that it can maintain a relatively stable state during docking without vibration to affect the docking, and at the same time eliminates the tip discharge phenomenon caused by poor docking during docking, greatly improving the service life of the contact.
[0016] 2. This kind of shock-absorbing and low-wear docking contact realizes the precise docking of the main contact and the auxiliary contact by setting a triangular push plate and a contact docking assembly, improves the shock-absorbing performance and low-wear performance of the contact, and prolongs the service life of the contact. By setting a vertical sliding cavity, the vertical sliding of the upper and lower covers of the main contact is realized, further improving the shock-absorbing effect. By setting a back connecting plate and a triangular sliding plate, the left-right symmetrical setting of the auxiliary contact is realized, improving the stability and reliability of the contact. By setting an extension rod, the adjustability of the auxiliary connecting contact is realized, and the adaptability of the contact is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a shock-absorbing and low-wear docking type contact in the utility model;
[0018] Figure 2It is a three-dimensional structural schematic diagram of a main contact in a shock-absorbing and low-wear docking contact in the utility model;
[0019] Figure 3 It is a three-dimensional structural schematic diagram of an auxiliary contact in a shock-absorbing and low-wear docking contact in the utility model;
[0020] Figure 4 The utility model is a three-dimensional structural schematic diagram of a contact docking assembly in a shock-absorbing and low-wear docking contact.
[0021] In the figure: 1-main contact, 2-auxiliary contact, 3-contact docking assembly, 11-triangular push plate, 12-vertical sliding cavity, 13-upper and lower cover plates of main contact, 21-back connecting plate, 22-triangular sliding plate, 23-extension rod, 24-auxiliary connecting contact, 31-fixing part, 32-rotating cylinder, 33-swing rod, 34-sliding cylindrical block, 35-return spring, 36-downward pressing contact point, 37-rising contact point, 38-long strip contact plate, 361-buffer plate, 371-buffer groove. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-4 , a shock-absorbing and low-wear docking contact, comprising a main contact 1, a contact inner cavity is provided in the main contact 1, triangular push plates 11 are provided on the left and right sides of the contact inner cavity, a contact docking assembly 3 is provided between the triangular push plates 11, the triangular push plates 11 on both sides are respectively connected to the left and right sides of the contact docking assembly 3, the center of the contact docking assembly 3 coincides with the center of the vertical sliding cavity 12 provided on the upper and lower cover plates 13 of the main contact, the vertical sliding cavity 12 extends out to the outer side of the upper and lower cover plates 13 of the main contact, the main contact 1 is docked with the auxiliary contact 2 through the triangular push plate 11, the auxiliary contact 2 comprises a back connecting plate 21, triangular sliding plates 22 are symmetrically provided on the left and right sides of the back connecting plate 21, and an auxiliary connecting contact 24 is provided at the center of the triangular sliding plate 22 through an extension rod 23.
[0024] The contacts in the contact docking assembly 3 are driven by the triangular push plate 11, so that the main contact 1 and the auxiliary contact 2 can be accurately docked. When the main contact 1 and the auxiliary contact 2 are docked, the back connecting plate 21 and the triangular sliding plate 22 are driven by the extension rod 23 to control the distance between the downward pressing docking contact 36 and the upward docking contact 37, so that the auxiliary connecting contact 24 does not rub against the contact surface when it extends between the two. In terms of shock absorption, the design of the vertical sliding cavity 12 allows the upper and lower cover plates 13 of the main contact to slide vertically, thereby reducing vibration and impact caused by excessive current or poor contact. In terms of low wear, the design of the triangular push plate 11 and the contact docking assembly 3 allows the main contact 1 and the auxiliary contact 2 to adapt and align when docking, thereby reducing friction and wear. In addition, the design of the back connecting plate 21 and the triangular sliding plate 22 also allows the auxiliary contact 2 to be set symmetrically on the left and right, further improving the stability and reliability of the contact.
[0025] The contact docking assembly 3 is a bilaterally symmetrical structure, and includes a fixing member 31 connected to the triangular push plate 11. The upper and lower ends of the fixing member 31 are respectively connected to upper and lower swing rods 33 through a rotating cylinder 32, so that the fixing member 31 can be flexibly rotated through the swing rod 33 when subjected to the force of the triangular push plate 11, thereby achieving precise docking.
[0026] The end of the upper swing rod 33 is connected to the downward pressing docking contact 36, and the end of the lower swing rod 33 is connected to the upward docking contact 37. The contact docking assembly 3 adopts a bilaterally symmetrical structure, which can make the main contact 1 and the auxiliary contact 2 more stable and reliable during the docking process. The end of the upper swing rod 33 is connected to the downward pressing docking contact 36, and the end of the lower swing rod 33 is connected to the upward docking contact 37. When the downward pressing docking contact 36 and the upward docking contact 37 are separated from each other, the force can be transmitted to the fixing member 31 through the swing rod 33, so that the rotating cylinder 32 on the fixing member 31 drives the swing rod 33 to swing, so as to realize the separation and docking of the main contact 1 and the auxiliary contact 2.
[0027] In the implementation process, the main contact 1 and the auxiliary contact 2 can be precisely docked by adjusting the position and angle of the triangular push plate 11, and adjusting the connection position and angle between the fixing member 31 and the swing rod 33. At the same time, by adopting shock-absorbing and low-wear materials and structural designs, the vibration and wear during the docking process can be further reduced, and the performance and service life of the contacts can be improved.
[0028] Buffer plates 361 are provided on the left and right sides of the downward pressing butt contact point 36 , and their outer dimensions are the same as those of the buffer grooves 371 provided on the left and right sides of the upward butt contact point 37 .
[0029] During the contact docking process, when the downward-pressed docking contact 36 contacts the raised docking contact 37, the buffer plate 361 and the buffer groove 371 can play a buffering role, reduce the impact and stress during docking, and thus protect the contact from damage. The design of the buffer plate 361 and the buffer groove 371 can help the downward-pressed docking contact 36 and the raised docking contact 37 to be better aligned, thereby improving the accuracy and stability of docking. The buffer plate 361 and the buffer groove 371 can disperse the pressure during docking and avoid the pressure being concentrated on a certain part of the contact, thereby extending the service life of the contact. Through the buffering effect of the buffer plate 361 and the buffer groove 371, the wear of the contact during the docking process can be reduced, and the good conductive performance of the contact can be maintained. The design of the buffer plate 361 and the buffer groove 371 can enhance the shock resistance of the contact and reduce the impact on the contact caused by external vibration or impact.
[0030] A long strip contact plate 38 is provided on the contact surface of the downward pressing contact point 36 and the upward pressing contact point 37. The fixing member 31 is provided with two upper and lower swing rods 33, between which a return spring 35 is provided through a sliding cylindrical block 34. The extension rod 23 is provided with an inner cavity, and the external wire is connected to the auxiliary connection contact 24 through the inner cavity.
[0031] A long strip of contact plate 38 is provided on the contact surface of the downward pressing contact point 36 and the upward pressing contact point 37. This design can increase the contact area and improve the current transmission efficiency, while also helping to reduce the wear of the contact points. The fixing member 31 is provided with an upper and lower swing rod 33, between which a return spring 35 is provided through a sliding cylindrical block 34. The return spring 35 can provide a rebound force after the contacts are docked, so that the contacts can maintain a contact state more stably, further improving the stability of current transmission. The extension rod 23 is provided with an inner cavity, and the external wire is connected to the auxiliary connection contact 24 through the inner cavity. This design allows the external wire to be quickly connected and disconnected with the auxiliary connection contact 24, increasing the flexibility and convenience of the equipment.
[0032] Working principle: When the main contact 1 and the auxiliary contact 2 are connected, the triangular sliding plate 22 on the auxiliary contact 2 is connected to the triangular push plate 11. When the auxiliary contact 2 slides into the inner cavity of the main contact 1, the triangular sliding plate 22 pushes the triangular push plate 11 to move toward the center of the inner cavity of the main contact 1, so that the swing rod 33 swings and expands upward and downward, thereby separating the downward pressing contact point 36 from the upward pressing contact point 37, so that the two move in opposite directions along the vertical sliding cavity 12, thereby causing an insertion gap to appear between the downward pressing contact point 36 and the upward pressing contact point 37. At this time, the auxiliary connecting contact in the auxiliary contact The head 24 is just stuck between the two. At this time, after the auxiliary connecting contact 24 is fixed by the extension rod 23, the back connecting plate 21 is continued to be pushed to push the auxiliary contact 2 to the bottom of the inner cavity of the main contact 1. In this process, due to the contraction of the triangular inclined surface between the triangular push plate 11 and the triangular sliding plate 22, the triangular push plate 11 is gradually not squeezed by the triangular sliding plate 22. Therefore, the triangular push plate 11 moves to both ends again through the action of the return spring and the swing rod 33, driving the downward pressing docking contact 36 and the rising docking contact 37 to close each other, clamping the auxiliary connecting contact 24 between the two, and completing the docking.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shock-absorbing and low-wear docking contact, comprising a main contact (1), wherein a contact inner cavity is provided in the main contact (1), characterized in that: The left and right sides of the contact inner cavity are provided with triangular push plates (11), and a contact docking assembly (3) is provided between the triangular push plates (11). The triangular push plates (11) on both sides are respectively connected to the left and right sides of the contact docking assembly (3). The center of the contact docking assembly (3) coincides with the center of the vertical sliding cavity (12) provided on the upper and lower cover plates (13) of the main contact. The vertical sliding cavity (12) extends outward from the outer side of the upper and lower cover plates (13) of the main contact. The main contact (1) is docked with the auxiliary contact (2) through the triangular push plates (11). The auxiliary contact (2) includes a back connecting plate (21). The left and right sides of the back connecting plate (21) are symmetrically provided with triangular sliding plates (22), and the center of the triangular sliding plate (22) is provided with an auxiliary connecting contact (24) through an extension rod (23).
2. A shock-absorbing and low-wear docking contact according to claim 1, characterized in that: The contact docking assembly (3) is a bilaterally symmetrical structure, comprising a fixing member (31) connected to the triangular push plate (11), wherein the fixing member (31) is respectively connected to upper and lower swing rods (33) via a rotating cylinder (32), wherein the end of the upper swing rod (33) is connected to a downward pressing docking contact point (36), and the end of the lower swing rod (33) is connected to a rising docking contact point (37).
3. A shock-absorbing and low-wear docking contact according to claim 2, characterized in that: Buffer plates (361) are arranged on the left and right sides of the downward pressing contact point (36), and their outer dimensions are the same as those of the buffer grooves (371) arranged on the left and right sides of the upward pressing contact point (37).
4. The shock-absorbing and low-wear docking contact according to claim 2, characterized in that: A long strip of contact plate (38) is provided on the contact surface between the downward pressing contact point (36) and the upward pressing contact point (37).
5. The shock-absorbing and low-wear docking contact according to claim 2, characterized in that: The fixing member (31) is provided with two upper and lower swing rods (33), between which a return spring (35) is provided via a sliding cylindrical block (34).
6. The shock-absorbing and low-wear docking contact according to claim 2, characterized in that: The extension rod (23) is provided with an inner cavity, and the external electric wire is connected to the auxiliary connection contact (24) through the inner cavity.