CN214434237U

CN214434237U - Electrode assembly

Info

Publication number: CN214434237U
Application number: CN202022855310.5U
Authority: CN
Inventors: 韩璧丞; 李晓; 古月; 黄琦; 刘裕东
Original assignee: Zhejiang Qiangnao Technology Co ltd
Current assignee: Zhejiang Qiangnao Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-10-22
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses an electrode subassembly for flesh electricity electrode assembly, flesh electricity electrode assembly has the accepting cavity, electrode subassembly includes sensing electrode, electrode shell and mount pad. The electrode shell is provided with a first side and a second side which are opposite to each other, the induction electrode is arranged on the first side, and the mounting seat is clamped on the second side of the electrode shell. And the mounting seat is provided with a threaded connection structure for being in threaded connection with the receiving cavity. The utility model discloses some flesh electricity induction electrode that current can be solved to the electrode subassembly is when the equipment and install among the flesh electricity electrode device convenient enough technical problem.

Description

Electrode assembly

Technical Field

The utility model relates to the technical field of sensing, in particular to electrode subassembly.

Background

Currently, the myoelectricity induction electrode is widely applied to prosthetic devices or myoelectricity electrode devices, and is used for inducing movement or posture change of limbs in the prosthetic devices or the myoelectricity electrode devices and transmitting corresponding myoelectricity signals. However, some of the currently available electromyographic electrodes are not convenient enough to assemble and install into prosthetic devices or electromyographic electrode assemblies.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective provides an electrode subassembly, aims at solving some present flesh electricity induction electrode and when assembling and installing in prosthetic equipment or flesh electricity electrode device convenient technical problem inadequately.

In order to achieve the above object, the present invention provides an electrode assembly for a myoelectric electrode device, the myoelectric electrode device has a receiving cavity, the electrode assembly includes a sensing electrode, an electrode housing and a mounting seat. The electrode shell is provided with a first side and a second side which are opposite to each other, the induction electrode is arranged on the first side, and the mounting seat is clamped on the second side of the electrode shell. And the mounting seat is provided with a threaded connection structure for being in threaded connection with the receiving cavity.

In one embodiment, the second side of the electrode shell is provided with an opening, and the mounting seat is clamped on the inner peripheral wall of the opening of the second side.

In one embodiment, the mounting seat comprises a mounting plate and a buckle protruding from the mounting plate to the first side of the electrode shell, and a clamping groove is formed in the inner wall of the opening of the second side; the buckle is followed the second side of electrode shell inserts to the direction of first side the opening to the joint in the draw-in groove, the periphery butt of mounting panel in the inner periphery of second side.

In one embodiment, the second side of the electrode housing is further provided with an annular support surface, and the mounting plate has a first surface and a second surface which are opposite; the first surface faces the first side of the electrode housing and is mounted in position on the annular support surface, and the second surface is flush with an end face of a second side of the electrode housing.

In one embodiment, the receiving cavity is provided with a positioning groove, and a through hole for a screw to pass through is formed in the positioning groove; the second surface of the mounting plate is also provided with a positioning bulge matched with the positioning groove, the screw connection structure is an inner screw hole arranged in the positioning bulge, and the position of the inner screw hole corresponds to the position of the through hole.

In an embodiment, the inner circumferential surface of the positioning groove and the outer circumferential surface of the positioning protrusion are both conical surfaces, and the positioning protrusion is in clearance fit with the positioning groove

In an embodiment, the electrode housing further comprises an elastic connection portion through which the first side and the second side are connected.

In one embodiment, the outer circumference of the first side is smaller than the opening of the second side, and the elastic connecting part is in a ring-shaped structure and is bent towards the inner direction of the electrode shell.

In one embodiment, the first side is provided with a mounting hole, and the sensing electrode is mounted at the mounting hole and extends out of the electrode shell.

In one embodiment, the electrode assembly further comprises a circuit board mounted to the first side and electrically connected to the sensing electrode; the circuit board is provided with a first fool-proof structure, the first side is provided with a second fool-proof structure, and the first fool-proof structure is connected with the second fool-proof structure in a clamping mode.

The utility model discloses electrode subassembly includes sensing electrode, electrode shell and mount pad. The induction electrode is installed at the first side of electrode shell, and the mount pad is connected with the form of joint with the second side of electrode shell for the mount pad with the electrode shell between equipment convenient and fast more. And the mounting seat is provided with a screw connection structure. The whole electrode assembly can be conveniently and quickly screwed into the receiving cavity of the myoelectricity electrode device on the basis of ensuring the basic induction function. The utility model discloses electrode subassembly has not only improved self equipment and has installed to the convenience of flesh electricity electrode means, still makes electrode subassembly's structure simple compactness more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of an electrode assembly according to the present invention;

FIG. 2 is a schematic view of an embodiment of a mounting seat in an electrode assembly according to the present invention;

fig. 3 is a partial schematic structural view of another embodiment of an electrode assembly according to the present invention;

fig. 4 is a schematic structural view of another embodiment of an electrode assembly according to the present invention;

fig. 5 is a schematic view of a portion of another embodiment of an electrode assembly according to the present invention;

fig. 6 is a top view of the electrode assembly of fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						10	Electrode assembly	35	Elastic connecting part	422	Second surface
20	Induction electrode	36	Mounting hole site	43	Buckle
						30	Electrode shell	37	Second fool-proof structure	44	Positioning projection
31	First side	40	Mounting seat	50	Circuit board
						32	Second side	41	Screw connection structure	51	First fool-proof structure
33	Clamping groove	42	Mounting plate
						34	Annular bearing surface	421	First surface

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

Detailed Description

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. In addition, the technical solutions in the embodiments 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, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides an electrode assembly 10.

In the embodiment of the present invention, as shown in fig. 1, the electrode assembly 10 is used for a myoelectric electrode device (not shown) having a socket capable of comfortably receiving a limb (residual limb) therein, and transmitting a force related to the limb to a distal part of a prosthesis through the electrode assembly 10, a signal processing module, etc. installed therein, which is a cross-sectional component of a human-mechanical system. In the present embodiment, the type of the receiving chamber is not limited, and may be a plug-in receiving chamber, a full contact receiving chamber, a suction receiving chamber, or the like.

The electrode assembly 10 is installed in the receiving cavity and electrically connected with the signal processing module in the receiving cavity, and the electrode assembly 10 is mainly used for abutting against the limb, sensing the movement of the limb and transmitting the sensed myoelectric signals to the signal processing module. The signal processing module processes the electromyographic signals and transmits the processed signals to the far-end part of the artificial limb, so that the far-end part of the artificial limb generates corresponding actions.

Electrode assembly 10 is typically mounted inside the socket and needs to remain in contact with the moving limb, thereby facilitating mounting of electrode assembly 10 and ensuring stability of mounting of electrode assembly 10. As shown in fig. 1 or 4, the electrode assembly 10 of the present invention includes an induction electrode 20, an electrode housing 30 and a mounting seat 40, wherein the electrode housing 30 has a first side 31 and a second side 32 opposite to each other, the induction electrode 20 is disposed on the first side 31, and the mounting seat 40 is fastened to the second side 32 of the electrode housing 30. The mounting seat 40 is provided with a screw structure 41 for screw mounting with the receiving cavity.

It should be noted that the terms "first side 31 and second side 32" refer to the two sides of the electrode assembly 10 that are respectively adjacent to the wall of the receiving cavity and the limb received in the receiving cavity when the electrode assembly 10 is installed in the receiving cavity, and the side adjacent to the limb is the first side 31 and the side adjacent to the wall of the receiving cavity is the second side 32.

Therefore, the motion of the limb can be sensed well when the sensing electrode 20 is mounted on the first side 31. The size, specific structure, number, etc. of the sensing electrodes 20 are not limited, and can be set according to actual needs. In this embodiment, the first side 31 is provided with a mounting hole 36, a step structure is provided in the mounting hole 36, and the sensing electrode 20 is mounted in the mounting hole 36 and extends out of the electrode housing 30. Specifically, the sensing electrode 20 has a sensing portion and a mounting portion, the mounting portion is supported and positioned on the step structure in the mounting hole 36, and the sensing portion extends out of the electrode housing 30 and contacts with the limb. Therefore, the assembly of the sensing electrode 20 is very convenient and fast, and when the assembly is performed, the sensing electrode 20 only needs to be directly placed in the mounting hole 36, and other assembly operations are not needed.

In one embodiment, as shown in fig. 1 or 4, the electrode assembly 10 further includes a circuit board 50, and the circuit board 50 is mounted on the first side 31 and electrically connected to the sensing electrode 20. Specifically, taking the side where the first side 31 is located as the upper side and the side where the second side 32 is located as the lower side (the same applies below), the circuit board 50 directly covers the upper side of the sensing electrode 20 and is fixed to the first side 31 of the electrode shell 30 by heat fusion. Therefore, the circuit board 50 is conveniently electrically connected with the sensing electrode 20, the sensing electrode 20 can be limited, and the sensing electrode 20 is prevented from being separated from the mounting hole 36 towards the inner direction of the electrode shell 30.

The circuit board 50 is also provided with a connector socket for electrical connection with a signal processing module or other device on the receiving cavity via a connecting wire. In another embodiment, as shown in fig. 6, a first fool-proof structure 51 is disposed on the circuit board 50, a second fool-proof structure 37 is disposed on the first side 31, and the first fool-proof structure 51 is connected to the second fool-proof structure 37 in a snap-fit manner. Through first fool-proof structure 51 and second fool-proof structure 37 for circuit board 50 can only be installed with a certain direction, and then makes a plurality of electrode subassembly 10's in the accepting cavity the direction of appearance all unanimous, not only is convenient for the wiring, still conveniently connects management, dismouting and the maintenance in the later stage, also is favorable to improving the convenience that electrode subassembly 10 installed to the accepting cavity like this.

Wherein, the first fool-proof structure 51 can be a notch structure, and the second fool-proof structure 37 can be a bump structure, so as to be convenient for mutual clamping. Of course, the first fool-proof structure 51 may be a bump structure, and the second fool-proof structure 37 may be a notch or a groove structure. The specific setting may be performed according to actual needs, and is not specifically limited herein.

Similarly, the side of electrode assembly 10 adjacent the wall of the receiving cavity is second side 32, and mounting base 40 is attached to second side 32, so that electrode assembly 10 can be better and more easily attached to the receiving cavity via mounting base 40. Specifically, the mounting seat 40 is connected with the second side 32 of the electrode shell 30 in a clamping manner, and during assembly, the mounting seat 40 only needs to be clamped into the second side 32, so that the mounting seat 40 and the electrode shell 30 can be assembled more conveniently and quickly.

For the clamping structure between the mounting seat 40 and the second side 32 of the electrode shell 30, one of the mounting seat 40 and the second side 32 may be provided with a buckle, and the other may be provided with a clamping groove, so as to facilitate mutual clamping. Of course, the mounting seat 40 and the second side 32 may be provided with fasteners, and the fasteners may be fastened to each other, specifically, may be set according to actual conditions.

In one embodiment, as shown in fig. 1 to 3, in order to facilitate the mounting seat 40 to be clamped to the second side 32 of the electrode housing 30, the second side 32 is provided with an opening, and the mounting seat 40 is clamped on the inner peripheral wall of the opening of the second side 32. So make the internal perisporium of second can regard as the location structure when mount pad 40 joint to second side 32, mount pad 40 only need along the internal perisporium of second side 32 with second side 32 joint promptly can, need not carry out relevant location operation before the joint for the equipment of mount pad 40 is convenient and fast more.

In addition, when the mounting seat 40 is fastened to the inner peripheral wall of the second side 32, the whole electrode assembly 10 is more compact in structure, and the whole volume and occupied space are smaller, which is beneficial to the myoelectric electrode device or the prosthetic device to be more flexible and portable.

In an embodiment, the mounting base 40 includes a mounting plate 42 and a buckle 43 protruding from the mounting plate 42 toward the first side 31 of the electrode housing 30, a slot 33 is disposed on an inner wall of an opening of the second side 32, the buckle 43 is inserted into the opening along a direction from the second side 32 to the first side 31 of the electrode housing 30 and is clamped in the slot 33, and an outer periphery of the mounting plate 42 abuts against an inner periphery of the second side 32.

It will be appreciated that, taking the side of the second side 32 of the electrode housing 30 as the upper side, the location of the catch 43 below the mounting plate 42 allows the outer peripheral dimension of the mounting seat 40 to be smaller, further reducing the overall size of the electrode assembly 10. In addition, the outer circumference of the mounting plate 42 abuts against the inner circumference of the second side 32, so that the mounting seat 40 can be mounted more stably, and the mounting plate 42 can have a certain sealing effect on the opening of the second side 32, thereby preventing foreign objects from falling into the electrode housing 30.

In one embodiment, referring to fig. 1 to 3, in order to ensure sufficient stability of the mounting seat 40 during clamping, the second side 32 of the electrode housing 30 is further provided with an annular supporting surface 34, and the mounting plate 42 has a first surface 421 and a second surface 422 opposite to each other. The first surface 421 faces the first side 31 of the electrode casing 30 and is mounted on and positioned on the annular support surface 34, and the second surface 422 is flush with the end surface of the second side 32 of the electrode casing 30, so that the structure of the electrode assembly 10 is more indirectly compact.

Note that, taking the side of the second side 32 of the electrode casing 30 as an upper side as an example, the end surface of the second side 32 of the electrode casing 30 refers to an upper surface of the motor casing.

As shown in fig. 1 or 4, the mounting seat 40 is further provided with a screw structure 41, the electrode assembly 10 is screwed into the receiving cavity through the mounting seat 40, and the screw structure 41 may be an internal thread, an external thread, or the like, and is further connected to the receiving cavity through a screw, a connector with an internal thread, or the like. In this embodiment, the accepting cavity is provided with a positioning groove, and the positioning groove is provided with a through hole for a screw to pass through. The second surface 422 of the mounting plate 42 is further provided with a positioning protrusion 44 adapted to the positioning groove, the screw joint structure 41 is an inner screw hole provided in the positioning protrusion 44, and the position of the inner screw hole corresponds to the position of the through hole.

It will be appreciated that the electrode assembly 10 can be quickly positioned into the correct location in the receiving cavity by the positioning bosses 44 on the mounting base 40 and then directly screwed by screws. Specifically, the positioning protrusion 44 is provided with a screw hole, the opening of the screw hole is disposed upward, and the screw connection structure 41 is an internal thread and is located in the screw hole. After the positioning protrusion 44 is positioned in the positioning cavity of the receiving cavity, the opening of the screw hole is opposite to the through hole of the positioning groove, so that the electrode assembly 10 can be directly fixed in the receiving cavity by the screw.

In an embodiment, in order to facilitate the positioning of the mounting seat 40 more conveniently and quickly, the inner circumferential surface of the positioning groove and the outer circumferential surface of the positioning protrusion 44 are both tapered surfaces, and the positioning protrusion 44 is in clearance fit with the positioning groove. It will be appreciated that the tapered surface provides some guidance, even if initially positioned inaccurately, but the guide of the tapered surface allows the mount 40 to be quickly straightened and positioned into the receiving cavity with the electrode shell 30.

Therefore, the utility model discloses electrode subassembly 10 package not only makes the more convenient and fast of equipment between mount pad 40 and electrode shell 30, still makes whole electrode subassembly 10 on the basis of guaranteeing basic response function, spiro union to flesh electricity electrode device's the accepting cavity that can convenient and fast. In addition, the structure of the electrode assembly 10 is made more simple and compact.

In one embodiment, to enable the sensing electrode 20 to maintain contact with the limb within the socket, the electrode housing 30 further comprises an elastic connection 35, and the first side 31 and the second side 32 are connected by the elastic connection 35. It will be appreciated that the resilient connecting portion 35 allows the first side 31 to move towards the second side 32 when squeezed by the limb and allows the sensing electrode 20 to remain in contact with the limb. When the limb is far away from the first side 31, the elastic connecting part 35 restores the elastic deformation, so that the first side 31 is moved towards the limb, and the sensing electrode 20 is kept in contact with the limb.

As for the manner of forming the elastic connection portion 35 between the first side 31 and the second side 32, it can be obtained by two-shot molding, i.e. the first side 31 and the second side 32 are both injection molded into a hard structure, and the elastic connection portion 35 is injection molded into an elastic structure.

In one embodiment, the outer circumference of the first side 31 is smaller than the opening of the second side 32, and the elastic connection part 35 is in a ring structure and is bent toward the inner direction of the electrode housing 30. When the elastic connection part 35 is elastically deformed, the elastic connection part 35 can be contracted towards the inside of the electrode shell 30, so that the volume of the electrode shell 30 after being expanded and contracted is not increased, and the structure of the myoelectric electrode device is simplified.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electrode assembly for a myoelectric electrode device having a socket, comprising:

an induction electrode;

the electrode shell is provided with a first side and a second side which are opposite, and the induction electrode is arranged on the first side;

a mount snapped to a second side of the electrode housing; and the mounting seat is provided with a threaded connection structure for being in threaded connection with the receiving cavity.

2. The electrode assembly of claim 1, wherein the second side is open and the mounting cup is snapped into place on an inner peripheral wall of the opening in the second side.

3. The electrode assembly of claim 2, wherein the mounting seat comprises a mounting plate and a clip projecting from the mounting plate toward the first side of the electrode housing, and a locking groove is formed on an inner wall of the opening of the second side; the buckle is followed the second side of electrode shell inserts to the direction of first side the opening to the joint in the draw-in groove, the periphery butt of mounting panel in the inner periphery of second side.

4. The electrode assembly of claim 3 wherein the second side of the electrode housing is further provided with an annular support surface, the mounting plate having first and second opposed surfaces;

the first surface faces the first side of the electrode housing and is mounted in position on the annular support surface, and the second surface is flush with an end face of a second side of the electrode housing.

5. The electrode assembly of claim 4, wherein the receiving cavity is provided with a positioning groove, and the positioning groove is provided with a through hole for a screw to pass through;

the second surface of the mounting plate is also provided with a positioning bulge matched with the positioning groove, the screw connection structure is an inner screw hole arranged in the positioning bulge, and the position of the inner screw hole corresponds to the position of the through hole.

6. The electrode assembly of claim 5, wherein the inner circumferential surface of the positioning groove and the outer circumferential surface of the positioning projection are tapered surfaces, and the positioning projection is gap-fitted to the positioning groove.

7. The electrode assembly according to any one of claims 1 to 6, wherein the electrode case further comprises an elastic connection part, and the first side and the second side are connected by the elastic connection part.

8. The electrode assembly of claim 7, wherein the first side has an outer circumference smaller than the opening of the second side, and the elastic connection part has a ring-shaped structure and is bent toward the inside of the electrode case.

9. The electrode assembly of any one of claims 1 to 6, wherein the first side of the electrode case is provided with a mounting hole, and the sensing electrode is mounted at the mounting hole and protrudes outside the electrode case.

10. The electrode assembly of claim 9, further comprising a circuit board mounted to the first side and electrically connected to the sensing electrode;

the circuit board is provided with a first fool-proof structure, the first side is provided with a second fool-proof structure, and the first fool-proof structure is connected with the second fool-proof structure in a clamping mode.