Conductive contact structure and slip ring

Abstract

The utility model relates to the technical field of slip rings, and provides a conductive contact structure and a slip ring, the conductive contact structure comprises a conductive ring fixedly arranged in a ring channel and also comprises an outer ring used as a brush body, and the outer ring is connected to a stator part and is in contact with the conductive ring. According to the utility model, the outer ring is used as a brush body to be in contact with the conducting ring, and an electric brush structure in a traditional slip ring is canceled, so that the structure is simpler, and the problem of non-uniform abrasion of each brush body in the traditional slip ring is also avoided; in practical application, direct wiring and charging of the circuit board assembly can be realized on the outer ring, and the internal structure of the slip ring is further simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slip ring, specifically, a kind of electric contact structure and slip ring. BACKGROUND

[0002] Slip ring is usually installed in the rotating center of equipment, and it is a kind of rotary joint connecting two devices and transmitting power and signal in 360-degree rotation.

[0003] In slip ring, including stator part and rotor part, the brush of stator part and the electrically conductive ring in the ring channel of rotor part constitute electric contact structure, when working, electrically conductive ring rotates with rotor part, and the brush and electrically conductive ring slide contact, so as to maintain electrical connection, realize the transmission of power and signal. However, the brush is composed of brush body, brush holder and spring and other components, and the structure is complex;And due to various factors (such as vibration, centrifugal force, etc.), uneven wear of each brush body is prone to occur, and such uneven wear will lead to the change of contact resistance, and if the brush is not replaced in time, even the problem of sparking and short circuit may be caused, and the reliability needs to be improved. SUMMARY

[0004] The utility model aims at providing a kind of electric contact structure and slip ring, to solve the above-mentioned defects of prior art.

[0005] The utility model realizes by the following technical scheme:

[0006] A kind of electric contact structure, including the electrically conductive ring fixed in ring channel, further include the outer ring for acting as brush body, outer ring is connected to stator part and contact with electrically conductive ring.

[0007] Optionally, the outer ring includes several arc segments arranged along the circumferential direction of electrically conductive ring.

[0008] Optionally, the outer ring is circular arc.

[0009] Optionally, the outer ring is circular.

[0010] Optionally, electric contact structure further includes elastic member, one end of elastic member is fixedly connected with stator part, the other end of elastic member is fixedly connected with insulating tablet, and insulating tablet is fixedly connected with outer ring, and outer ring is pressed to electrically conductive ring under the action of elastic member.

[0011] Optionally, the insulating tablet has arc surface that can be attached to the outer side of the outer ring.

[0012] Optionally, the elastic member is a spring.

[0013] The utility model further provides a kind of slip ring, including the electric contact structure described in any one of the above.

[0014] The utility model discloses a technical scheme at least has following advantage and beneficial effect: the utility model discloses, through the outer ring acts as the brush body to contact with the conductive ring, cancelled the brush structure in traditional slip ring, makes the structure more simple, also avoided the uneven problem of each brush body abrasion in traditional slip ring, and the outer ring can be directly wired in practical application, and the charging circuit board subassembly, further simplify the internal structure of slip ring. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure diagram of a conductive contact structure provided for example 1 is shown in the figure.

[0016] Figure 2 A structure diagram of a conductive contact structure provided for example 2 is shown in the figure.

[0017] Figure 3 A structure diagram of a conductive contact structure provided for example 3 is shown in the figure.

[0018] The figure mark: 1 - conductive ring, 2 - outer ring, 3 - elastic piece, 4 - insulating tablet, 5 - shell. DETAILED DESCRIPTION

[0019] Example 1

[0020] Reference Figure 1 A conductive contact structure, including the conductive ring 1 fixed in the ring channel, still including the outer ring 2 for acting as the brush body, the outer ring 2 is connected to the stator portion and contacts with the conductive ring 1. Compared with the traditional slip ring, the utility model cancels the brush structure in traditional slip ring, makes the structure more simple, also avoided the uneven problem of each brush body abrasion in traditional slip ring, and the outer ring 2 can be directly wired in practical application, and the charging circuit board subassembly, further simplify the internal structure of slip ring.

[0021] In the embodiment, the outer ring 2 includes two arc segments arranged along the circumferential direction of the conductive ring 1, of course, in other embodiments, the outer ring 2 can also be composed of a larger number of arc segments.

[0022] It is worth mentioning that, on the basis of the above, the outer ring 2 and the conductive ring 1 are prone to poor contact after long-term wear, therefore, the utility model also makes the following improvements.

[0023] On the basis, the conductive contact structure further comprises an elastic member 3, one end of the elastic member 3 is fixedly connected with the stator part (for example, the housing 5 shown in the figure), and the other end of the elastic member 3 is fixedly connected with the insulating pressing sheet 4, preferably, the elastic member 3 is a spring, on the basis, it should be understood by those skilled in the art that the fixed connection of the spring with the stator part and the insulating pressing sheet 4 can adopt the conventional connection mode of the spring. The insulating pressing sheet 4 is fixedly connected (for example, bonded) with the outer ring 2, further, the insulating pressing sheet 4 has an arc surface capable of being attached to the outer side of the outer ring 2, so as to facilitate the stable connection of the insulating pressing sheet 4 with the outer ring 2.

[0024] According to the above arrangement, the outer ring 2 is pressed towards the conductive ring 1 under the action of the elastic member 3, and when the outer ring 2 is worn after being in contact with the conductive ring 1, the outer ring 2 can continuously maintain contact with the conductive ring 1 under the action of the elastic member 3, that is, the wear compensation is realized through the elastic member 3, so as to solve the problem that the outer ring 2 and the conductive ring 1 are prone to poor contact after long-term wear. In addition, the insulating pressing sheet 4 arranged will not conduct electricity, so as to avoid affecting the power and signal transmission.

[0025] Embodiment 2

[0026] Reference Figure 2 The difference between the embodiment and the embodiment 1 is the structure of the outer ring 2, the outer ring 2 in the embodiment is in the shape of a circular arc, that is, only a segment of a circular ring, which can also be regarded as only a segment of the arc-shaped segment in the embodiment 1.

[0027] Embodiment 3

[0028] Reference Figure 3 The difference between the embodiment and the embodiment 1 is also the structure of the outer ring 2, the outer ring 2 in the embodiment is in the shape of a circular ring, on the basis, it should be understood that the elastic member 3 should be arranged on one side of the outer ring 2, so that the outer ring 2 is stressed, and it is ensured that the outer ring 2 can be in contact with the conductive ring 1 under the action of the elastic member 3 after the outer ring 2 is worn.

[0029] Embodiment 4

[0030] The embodiment provides a slip ring adopting the conductive contact structure provided in the embodiment 1. Of course, in other embodiments, the slip ring can also adopt the conductive contact structure provided in the embodiment 2 or the embodiment 3.

[0031] The preferred embodiments of the utility model have been described above, but the utility model is not limited to the above. Those skilled in the art can make various changes and modifications to the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A conductive contact structure, comprising a conductive ring fixed within a ring channel, characterized in that, It also includes an outer ring that acts as a brush body, which is connected to the stator portion and contacts the conductive ring.

2. The conductive contact structure according to claim 1, characterized in that, The outer ring includes several arc-shaped segments arranged at intervals along the circumference of the conductive ring.

3. The conductive contact structure according to claim 1, characterized in that, The outer ring is arc-shaped.

4. The conductive contact structure according to claim 1, characterized in that, The outer ring is circular.

5. The conductive contact structure according to any one of claims 2-4, characterized in that, The conductive contact structure also includes an elastic element. One end of the elastic element is fixedly connected to the stator part, and the other end of the elastic element is fixedly connected to an insulating pressure plate. The insulating pressure plate is fixedly connected to the outer ring, and the outer ring is pressed against the conductive ring under the action of the elastic element.

6. The conductive contact structure according to claim 5, characterized in that, The insulating sheet has an arc surface that can fit against the outer side of the outer ring.

7. The conductive contact structure according to claim 5, characterized in that, The elastic element is a spring.

8. A slip ring, characterized in that, Includes the conductive contact structure described in any one of claims 1-7.

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