阅读说明：本技术 一种信号滑环 (Signal slip ring ) 是由 向雨 向光恒 于 2021-08-24 设计创作，主要内容包括：本发明公开了一种信号滑环,所述信号滑环包括固定端子和滑动端子,所述滑动端子嵌设于所述固定端子,且两者滑动连接；所述固定端子包括若干轴向排列的信号外环,所述滑动端子包括若干轴向排列的信号滑环,所述信号滑环包括环本体和滑齿,所述滑齿设置多个,多个所述滑齿分部于所述环本体的周边,所述滑动端子与所述固定端子相互滑动时,所述滑齿至少部分抵接于所述信号外环的内侧。本发明能够提高信号连接的稳定性,减少信号瞬断现象。(The invention discloses a signal slip ring, which comprises a fixed terminal and a sliding terminal, wherein the sliding terminal is embedded in the fixed terminal and is connected with the fixed terminal in a sliding manner; the fixed terminal comprises a plurality of axially arranged signal outer rings, the sliding terminal comprises a plurality of axially arranged signal sliding rings, each signal sliding ring comprises a ring body and a plurality of sliding teeth, the plurality of sliding teeth are distributed on the periphery of the ring body, and when the sliding terminal and the fixed terminal slide mutually, at least part of the sliding teeth abut against the inner sides of the signal outer rings. The invention can improve the stability of signal connection and reduce the phenomenon of signal instantaneous interruption.)

1. The signal slip ring is characterized by comprising a fixed terminal and a sliding terminal, wherein the sliding terminal is embedded in the fixed terminal and is connected with the fixed terminal in a sliding manner;

the fixed terminal comprises a plurality of axially arranged signal outer rings, the sliding terminal comprises a plurality of axially arranged signal sliding rings, each signal sliding ring comprises a ring body and a plurality of sliding teeth, the plurality of sliding teeth are distributed on the periphery of the ring body, and when the sliding terminal and the fixed terminal slide mutually, at least part of the sliding teeth abut against the inner sides of the signal outer rings.

2. The signal slip ring of claim 1, wherein a plurality of the slip teeth are equally spaced on the ring body.

3. The signal slip ring of claim 2, wherein the sliding teeth comprise abutting sections connected in sequence, the abutting sections are protruded towards the direction of the axis of the ring body, the abutting sections are provided with conducting layers, and the abutting sections abut against the inner side of the signal outer ring.

4. The signal slip ring of claim 3, wherein the sliding tooth further comprises two pressure buffer sections, the two pressure buffer sections being disposed on opposite sides of the abutting section.

5. The signal slip ring of any one of claims 1 to 4, wherein the sliding terminal comprises a slip ring, a plurality of the signal slip rings being sleeved on the slip ring, the slip ring providing a signal weld.

6. The signal slip ring of claim 5, wherein said sliding terminal further comprises an inner barrel, said signal slip ring being sleeved on an outer sidewall of said inner barrel;

the sliding terminal further comprises a sealing upper cover and an insulating lower cover, the sealing upper cover and the insulating lower cover are respectively arranged at two ends of the inner barrel, and a plurality of wire passing holes are formed in the surface of the sealing upper cover.

7. The signal slip ring of claim 6, wherein the sliding terminal further comprises a plurality of insulating inner rings disposed between a plurality of the signal slip rings.

8. The signal slipring of claim 7, wherein: the lateral wall of inner tube sets up a plurality of first location portions, first location portion follows the axial extension of inner tube, insulating inner ring sets up a plurality of first locating ports, insulating inner ring is located the inner tube, first locating port joint in first location portion.

9. The signal slip ring of claim 6, wherein the sliding terminal further comprises a sliding stop pin disposed on the sealing top cover.

10. The signal slip ring of claim 5, wherein the fixed terminal further comprises an outer barrel and a fixed flange, the fixed flange is disposed at one end of the outer barrel, the inner sidewall of the outer barrel is provided with a plurality of second positioning portions, and the second positioning portions extend along the axial direction of the outer barrel;

the fixed terminal further comprises an insulating outer ring, the signal outer ring is arranged on the inner side wall of the outer barrel, the insulating outer ring is arranged between the signal outer ring and the inner side wall of the outer barrel, the insulating outer ring is provided with a plurality of second positioning openings, the insulating outer ring is arranged on the outer barrel, and the second positioning openings are clamped in the second positioning portions.

Technical Field

The invention relates to the technical field of signal connection, in particular to a signal slip ring.

Background

At present, a plurality of sliding signal connecting devices are provided with a sliding terminal and a fixed terminal, and the sliding terminal and the fixed terminal are connected in a sliding mode through a sliding wire and are in contact with a roller sliding groove through the sliding wire. However, in some vibration environments, the slide wire and the roller chute are easily separated under the influence of vibration, so that the connection between the slide terminal and the fixed terminal is unstable, and the problem of signal instantaneous interruption often occurs.

Disclosure of Invention

Therefore, in order to solve the problems that the connection between the conventional sliding terminal and the conventional fixed terminal is unstable and the signal is frequently interrupted instantaneously, it is necessary to provide a signal slip ring which can improve the stability of signal connection and reduce the signal interruption phenomenon.

In order to achieve the above object, the present invention provides a signal slip ring, which includes a fixed terminal and a sliding terminal, wherein the sliding terminal is embedded in the fixed terminal and is connected with the fixed terminal in a sliding manner;

the fixed terminal comprises a plurality of axially arranged signal outer rings, the sliding terminal comprises a plurality of axially arranged signal sliding rings, each signal sliding ring comprises a ring body and a plurality of sliding teeth, the plurality of sliding teeth are distributed on the periphery of the ring body, and when the sliding terminal and the fixed terminal slide mutually, at least part of the sliding teeth abut against the inner sides of the signal outer rings.

In an embodiment of the present application, the sliding teeth are disposed on the ring body at equal intervals.

In an embodiment of this application, the sliding tooth includes the butt section that connects gradually, the butt section orientation deviates from the axle center direction arch of ring body, the butt section sets up the conducting layer, the butt section butt in the inboard of signal outer loop.

In an embodiment of the present application, the sliding tooth further includes two pressure buffering sections, and the two pressure buffering sections are respectively disposed on two sides of the abutting section.

In an embodiment of the present application, the sliding terminal includes a sliding gear base ring, the sliding gear base ring is sleeved with the plurality of signal sliding rings, and the sliding gear base ring is provided with a signal welding portion.

In an embodiment of the present application, the sliding terminal further includes an inner cylinder, and the signal sliding ring is sleeved on an outer side wall of the inner cylinder;

the sliding terminal further comprises a sealing upper cover and an insulating lower cover, the sealing upper cover and the insulating lower cover are respectively arranged at two ends of the inner barrel, and a plurality of wire passing holes are formed in the surface of the sealing upper cover.

In an embodiment of the present application, the sliding terminal further includes a plurality of insulating inner rings, and the insulating inner rings are disposed between the plurality of signal slip rings.

In an embodiment of the present application, a plurality of first positioning portions are disposed on an outer side wall of the inner tube, the first positioning portions extend along an axial direction of the inner tube, a plurality of first positioning ports are disposed on the insulating inner ring, the insulating inner ring is disposed on the inner tube, and the first positioning ports are connected to the first positioning portions in a clamping manner.

In an embodiment of the present application, the sliding terminal further includes a sliding limiting pin, and the sliding limiting pin is disposed on the sealing upper cover.

In an embodiment of the present application, the fixed terminal further includes an outer cylinder and a fixed flange, the fixed flange is disposed at one end of the outer cylinder, and a plurality of second positioning portions are disposed on an inner side wall of the outer cylinder and extend along an axial direction of the outer cylinder;

the fixed terminal further comprises an insulating outer ring, the signal outer ring is arranged on the inner side wall of the outer barrel, the insulating outer ring is arranged between the signal outer ring and the inner side wall of the outer barrel, the insulating outer ring is provided with a plurality of second positioning openings, the insulating outer ring is arranged on the outer barrel, and the second positioning openings are clamped in the second positioning portions.

According to the technical scheme, the sliding terminal is embedded in the fixed terminal, and the sliding terminal can slide along the fixed terminal. The sliding terminal and the fixed terminal are connected with the signal slip ring through the signal outer ring. The sliding teeth are arranged on the outer side of the circumference of the ring body and abut against the inner side of the signal outer ring. The connection of the sliding terminal and the signal terminal is through the sliding teeth of the signal slip ring. Under the vibration environment, the sliding teeth are always abutted against the inner side of the signal outer ring, and even if one sliding tooth is separated from being in contact with the signal outer ring, the sliding teeth are still connected with the signal outer ring at other positions of the ring body. As can be seen, in this embodiment, the contact of a plurality of points is larger in area than the contact of the conventional method, and the connection is more stable. Therefore, the stability of signal connection is improved, and the phenomenon of signal instantaneous interruption is reduced.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of a signal slip ring of the present invention;

FIG. 2 is a schematic structural view of the outer tub of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the inner barrel of FIG. 1 in accordance with the present invention;

FIG. 4 is an exploded view of the fixed terminal of FIG. 1 in accordance with the present invention;

FIG. 5 is an exploded view of the slide terminal of FIG. 1 in accordance with the present invention;

FIG. 6 is a schematic view of the mounting structure of the signal slip ring of FIG. 1 according to the present invention;

FIG. 7 is an enlarged schematic view of portion A of FIG. 6;

fig. 8 is a schematic view of a stack of signal slip rings in accordance with the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Fixed terminal	2121	Abutting section
110	Signal outer ring	2122	Pressure buffer section
				120	Outer cylinder	220	Sliding gear base ring
121	Second positioning part	221	Signal welding part
				130	Fixing flange	230	Inner cylinder
140	Insulating outer ring	231	A first positioning part
				141	Second positioning port	240	Sealing upper cover
150	Sealing ring	250	Insulating lower cover
				160	First bearing	260	Insulating inner ring
170	Second bearing	261	A first positioning port
				20	Sliding terminal	270	Sliding limit pin
210	Signal slip ring	280	Sealing ring
				211	Ring body	30	Signal line
212	Sliding gear

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In the related art, for example, in a blower fan, a slide signal connection device is provided, and the slide signal connection device is provided with a slide terminal and a fixed terminal, and the slide terminal and the fixed terminal are connected by a slide wire in a manner of contacting with a roller chute by the slide wire. The fan work easily receives the influence smooth silk of vibration and cylinder spout and breaks away from easily, leads to from this, and the connection of sliding terminal and fixed terminal is unstable, can appear the problem that the signal breaks momentarily. In some automation systems, for example, signal connections are also provided. Or in the case of a robot, there are cases where vibration occurs.

In order to solve the above problems, the present embodiment provides a signal slip ring, as shown in fig. 1, fig. 4 and fig. 5, the signal slip ring 210 includes a fixed terminal 10 and a sliding terminal 20, the sliding terminal 20 is embedded in the fixed terminal 10, and the two are connected in a sliding manner; the lines for transmitting signals at different positions where the sliding terminal 20 and the fixed terminal 10 slide relative to each other are different, so that transmission of different signal contents or signal sizes is realized.

Referring to fig. 6 and 7, the sliding terminal 20 and the fixed terminal 10 are cylindrical structures, and the fixed terminal 10 includes a plurality of axially arranged signal outer rings 110, and the signal outer rings 110 are sequentially arranged to form a cylindrical shape. The sliding terminal 20 includes a plurality of axially aligned signal slip rings 210, and the signal slip rings 210 are sequentially aligned to form a cylindrical shape. The signal slip ring 210 comprises a ring body 211 and a sliding tooth 212, wherein the sliding tooth 212 has a certain wave-shaped structure, and the sliding tooth 212 protrudes out of the ring body 211. The plurality of sliding teeth 212 are provided, the plurality of sliding teeth 212 are distributed on the periphery of the ring body 211, and when the sliding terminal 20 and the fixed terminal 10 slide with each other, at least part of the sliding teeth 212 abut against the inner side of the signal outer ring 110. Under the vibration environment, even if the fixed terminal 10 and the sliding terminal 20 are eccentric under the influence of vibration, at least one sliding tooth 212 is abutted on the inner side of the signal outer ring 110, and the smooth signal transmission is ensured.

In the solution of the present embodiment, the sliding terminal 20 is embedded in the fixed terminal 10, and the sliding terminal 20 can slide along the fixed terminal 10. The slide terminal 20 and the fixed terminal 10 are connected through the signal outer ring 110 and the signal slip ring 210. Here, a sliding tooth 212 is provided on the outer side of the circumference of the ring body 211, and the sliding tooth 212 abuts on the inner side of the signal outer ring 110. The connection of the slide terminal 20 and the signal terminal is through the sliding teeth 212 of the signal slip ring 210. Under the vibration environment, the sliding teeth 212 are always abutted against the inner side of the signal outer ring 110, and even if one of the sliding teeth 212 is out of contact with the signal outer ring 110, the sliding teeth 212 are still connected with the signal outer ring 110 at other positions of the ring body 211. As can be seen, in this embodiment, the contact of a plurality of points is larger in area than the contact of the conventional method, and the connection is more stable. Therefore, the stability of signal connection is improved, and the phenomenon of signal instantaneous interruption is reduced.

In an embodiment of the present application, the plurality of sliding teeth 212 are disposed on the ring body 211 at equal intervals. Under the vibration environment, the signal slip ring 210 is subjected to different vibration directions, and any direction is possible. Through the equidistant arrangement of the sliding teeth 212, the existence of the sliding teeth 212 can be ensured in multiple directions of the ring body 211, so that the connection between the sliding teeth 212 and the signal outer ring 110 can be ensured in multiple positions.

Further, referring to fig. 7, the sliding tooth 212 includes an abutting section 2121 connected in sequence, the abutting section 2121 protrudes toward the axial direction away from the ring body 211, the abutting section 2121 is provided with a conductive layer, and the abutting section 2121 abuts against the inner side of the signal outer ring 110. A conductive layer is also provided on the inner side of the signal outer ring 110, and when a signal is transmitted, the signal passes through the abutting section 2121 and the signal outer ring 110. The conductive layer may be disposed by gold plating, such as electroplating. The gold plating forms a conductive layer, the plated metal is readily conductive, and the conductive layer may also improve the chemical stability of the contact point of the abutment section 2121 and the signal outer ring 110.

Further, the sliding tooth 212 further includes two pressure buffering sections 2122, and the two pressure buffering sections 2122 are respectively disposed at two sides of the abutting section 2121. The pressure buffering section 2122 can bear certain deformation capacity, and the pressure buffering section 2122 provides elastic buffering to keep the contact in elastic contact, so that the contact is prevented from being over-stressed and deformed due to the fact that the fixed terminal 10 and the sliding terminal 20 are not concentric.

In one embodiment of the present application, to ensure smooth signal transmission. The sliding terminal 20 includes a sliding gear base ring 220, a plurality of signal slip rings 210 are sleeved on the sliding gear base ring 220, and the sliding gear base ring 220 serves as an inner ring for supporting the signal slip rings 210. The sliding gear ring 220 is provided with a signal welding portion 221, and the signal welding portion 221 is used for connecting the signal line 30. For example, there are 16 signal slip rings 210, four signal slip rings 210 in a group, and a group of signal slip rings 210 on a sliding gear base ring 220. The signal line 30 is connected to the signal pad 221, and the signal of the signal slip ring 210 is transmitted to the signal line 30 through the signal pad 221. The signal welding portion 221 is a columnar structure, and the signal welding portion 221 is disposed inside the sliding gear ring 220.

Further, referring to fig. 8, it should be noted that in a group of signal slip rings 210, the position of the sliding tooth 212 of each signal slip ring 210 is different, when a plurality of signal slip rings 210 are stacked together, the positions of the plurality of sliding teeth 212 may be distributed in a staggered manner, and signal contact points may be provided at more points around the sliding terminal 20 by the staggered distribution of the sliding teeth 212.

In an embodiment of the present application, the sliding terminal 20 further includes an inner barrel 230, and the signal slip ring 210 is sleeved on an outer sidewall of the inner barrel 230; the sliding terminal 20 further includes a sealing upper cover 240 and an insulating lower cover 250, the sealing upper cover 240 and the insulating lower cover 250 are respectively disposed at two ends of the inner barrel 230, and a plurality of wire holes are opened on a surface of the sealing upper cover 240. It can be understood that the outer sidewall of the inner cylinder 230, the sealing upper cover 240 and the insulating lower cover 250 form an installation space in which the signal slip ring 210 is disposed. In order to smoothly transmit the signal of the slide terminal 20, a wire hole is provided on the surface of the upper sealing cover 240, and the signal line 30 may pass through the wire hole. For example, the signal slip ring 210 is provided with four groups, and one wire hole is connected to each group, and thus it can be known that four wire holes are provided on the surface of the sealing upper cover 240.

In the present application, the slide terminal 20 is further provided with a seal 280, and the seal 280 is provided inside the seal upper cover 240. The sealing ring 280 is waterproof and dustproof, and prevents moisture and dust from entering the slide terminal 20.

In an embodiment of the present application, to avoid errors in signal transmission, the slide terminal 20 further includes a plurality of insulating inner rings 260, and the insulating inner rings 260 are disposed between the plurality of signal slip rings 210. The signal slip rings 210 are spaced apart by the insulating action of the insulating inner ring 260. The insulating inner ring 260 is typically made of rubber.

In one embodiment of the present application, to improve the stability of the signal slip ring 210. Referring to fig. 3 and 5, the outer sidewall of the inner tube 230 is provided with a plurality of first positioning portions 231, the first positioning portions 231 extend along the axial direction of the inner tube 230, the insulating inner ring 260 is provided with a plurality of first positioning ports 261, the insulating inner ring 260 is provided on the inner tube 230, and the first positioning ports 261 are clamped to the first positioning portions 231. The first positioning port 261 of the inner insulating ring 260 is clamped in the first positioning portion 231, so that dislocation of the inner insulating ring 260 in a vibration environment is avoided. The insulating inner ring 260 can also extend between the signal slip ring 210 and the outer sidewall of the inner barrel 230, thereby avoiding the signal slip ring 210 from contacting the outer sidewall of the inner barrel 230.

In an embodiment of the present application, in order to ensure that the slide terminal 20 can slide within a specified distance, the slide terminal 20 is prevented from being detached from the fixed terminal 10. The slide terminal 20 further includes a slide stopper pin 270, and the slide stopper pin 270 is disposed on the upper sealing cover 240. In this embodiment, there is a stop at the position where the signal slip ring 210 is disposed, when the sliding terminal 20 is far away from the fixed terminal 10, the sliding limiting pin 270 gradually approaches the stop (not shown), and when the sliding terminal 20 moves to the maximum position far away from the fixed terminal 10, the stop abuts against the post sliding limiting pin 270, so as to limit the moving distance of the sliding terminal 20.

Referring to fig. 2 and 4, in an embodiment of the present application, the fixed terminal 10 further includes an outer cylinder 120 and a fixed flange 130, the fixed flange 130 is disposed at one end of the outer cylinder 120, the inner sidewall of the outer cylinder 120 is provided with a plurality of second positioning portions 121, and the second positioning portions 121 extend along the axial direction of the outer cylinder 120; the fixed terminal 10 further includes an insulating outer ring 140, the signal outer ring 110 is disposed on the inner sidewall of the outer cylinder 120, the insulating outer ring 140 is disposed between the signal outer ring 110 and the inner sidewall of the outer cylinder 120, the insulating outer ring 140 is disposed with a plurality of second positioning openings 141, the insulating outer ring 140 is disposed on the outer cylinder 120, and the second positioning openings 141 are clamped to the second positioning portions 121. The fixed terminal 10 may be provided with a sealing ring 150, and the sealing of the fixed terminal 10 by the sealing ring 150 may reduce the entry of moisture and dust into the fixed terminal 10. The second positioning opening 141 of the insulating outer ring 140 is clamped in the second positioning portion 121, so that the position of the insulating outer ring 140 is prevented from being dislocated in a vibration environment. And a first bearing 160 is provided at one end of the outer cylinder 120 and a second bearing 170 is provided at the other end of the outer cylinder 120 in order to fix the mounting of the terminal 10 and the slide terminal 20.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.