Conductive slurry, electrode and electrode preparation process

Abstract

The present application discloses a conductive slurry, comprising 60-70 parts of water, 10-20 parts of resin, 1-8 parts of dispersant, 1-8 parts of carbon black, and 0.1-3 parts of curing agent. The conductive slurry prepared by the components and their mass parts of the present application has low resistivity and good conductivity. The electrode is made of the conductive slurry of the present application, and the resistivity of the electrode is low and the sensitivity of the electrode induced voltage is high.

Description

Technical Field

[0001] The present application belongs to the research field of electrode technology, and particularly relates to a conductive slurry, an electrode, and an electrode preparation process. Background Art

[0002] Electrodes are used in monitoring devices as conductive media. In order to ensure that the detection results of the monitoring device are accurate, the monitoring device has high requirements for the sensitivity of the electrode induced voltage. The sensitivity of the electrode induced voltage is inversely proportional to the resistivity. In the monitoring devices in the prior art, most electrodes are made of metal materials, and the resistivity of different metal materials is different. It cannot be guaranteed that the resistivity of different metal electrodes can meet the electrode resistivity requirements of the monitoring device. To make electrodes that meet the resistivity requirements, a layer of conductive slurry can be coated on the surface of the electrode to ensure that the resistivity of the electrode meets the requirements. However, the resistivity of the conductive slurry in the prior art is relatively high. After a layer of conductive slurry is coated on the surface of the electrode, the resistivity requirements of the electrode cannot be met.

[0003] In view of the above problems, the present application proposes a conductive slurry. Summary of the invention

[0004] In order to address the deficiencies of the prior art, the present application provides a conductive slurry, which includes water, resin, dispersant, carbon black and curing agent. The conductive slurry is prepared by setting components in different weight portions to produce a conductive slurry whose resistivity meets the electrode requirements of a monitoring device. The conductive slurry has low resistivity and good conductivity, and the electrodes made of the conductive slurry have high sensitivity to induced voltage.

[0005] The technical effects to be achieved by this application are achieved through the following solutions:

[0006] In a first aspect, the present application provides a conductive slurry, which includes the following components in parts by weight: 60 to 70 parts of water, 10 to 20 parts of resin, 1 to 8 parts of dispersant, 1 to 8 parts of carbon black, and 0.1 to 3 parts of curing agent.

[0007] Furthermore, the resin is at least one of phenolic resin, polyester resin and polyamide resin; and / or

[0008] The dispersant is at least one of a polycarboxylate, a poly(meth)acrylic acid derivative, and a maleic anhydride copolymer; and / or

[0009] The carbon black is at least one of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black, and the carbon black needs to be ground in advance; and / or

[0010] The curing agent is at least one of aliphatic polyisocyanate, aliphatic polyamine and alicyclic polyamine; and / or

[0011] The water is deionized water.

[0012] In a second aspect, the present application provides an electrode, which is applied to a monitoring device, the electrode comprising a substrate, and a conductive layer arranged on at least a portion of the surface of the substrate, the conductive layer is formed by coating the conductive slurry described in the first aspect on the substrate, and the substrate is a flexible material.

[0013] Furthermore, the resistivity of the conductive layer is less than 0.5 KΩ·cm.

[0014] Furthermore, the thickness of the conductive layer is less than 0.8 mm.

[0015] Furthermore, a first structure is provided on the surface of the substrate, the first structure is used to attach the conductive layer, and the first structure includes at least one of raised dots, raised stripes, and raised grids uniformly arranged on the surface of the substrate.

[0016] In a third aspect, the present application provides an electrode preparation process for preparing the electrode described in the second aspect, wherein the electrode preparation process comprises the following steps:

[0017] Pre-treatment, cutting the substrate to remove lint and / or filamentous threads;

[0018] Coating: coating the conductive slurry on at least a portion of the outer surface of the substrate;

[0019] Curing: Curing the substrate coated with the conductive slurry at high temperature to allow the conductive slurry to form a conductive layer.

[0020] Further, the curing step comprises:

[0021] Baking: baking the substrate at a temperature of 80 to 120° C. for 20 to 40 minutes;

[0022] The substrate is cooled to obtain the electrode.

[0023] In a fourth aspect, the present application provides a monitoring device, comprising the electrodes as described in the second aspect, the monitoring device being used to monitor the electrocardiogram signals of a person contacting the electrodes or to monitor the signals generated by the contact and release of a person's hands on the electrodes.

[0024] Further, the monitoring device comprises a plurality of left-hand electrodes, and the plurality of left-hand electrodes are connected in parallel; and / or

[0025] The monitoring device comprises a plurality of right-hand electrodes, and the plurality of right-hand electrodes are connected in parallel.

[0026] In a fifth aspect, the present application provides a direction control device, comprising the monitoring device as described in the fourth aspect.

[0027] Furthermore, the direction control device also includes a body, and the electrodes of the monitoring device are arranged on the surface of the body.

[0028] In a sixth aspect, the present application provides a vehicle, comprising the direction control device as described in the fifth aspect.

[0029] This application has the following advantages:

[0030] The present application discloses a conductive slurry, comprising 60-70 parts of water, 10-20 parts of resin, 1-8 parts of dispersant, 1-8 parts of carbon black, and 0.1-3 parts of curing agent. The conductive slurry prepared by the components and their mass parts of the present application has a low resistivity and good conductivity. The electrode prepared by the conductive slurry of the present application has a low resistivity and a high sensitivity to the induced voltage of the electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the existing technical solutions, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 The electrocardiogram obtained by detecting the electrocardiogram activity of a person by the electrocardiogram monitoring device in the first example of the present application;

[0033] Figure 2 The electrocardiogram obtained by detecting the electrocardiogram activity of a person by the electrocardiogram monitoring device in the second example of the present application;

[0034] Figure 3 The electrocardiogram obtained by detecting the electrocardiogram activity of a person by the electrocardiogram monitoring device in the third example of the present application;

[0035] Figure 4 The electrocardiogram obtained by detecting the electrocardiogram activity of a person by the first comparative electrocardiogram monitoring device in one embodiment of the present application;

[0036] Figure 5 The electrocardiogram is obtained by detecting the electrocardiogram activity of a person by the second comparative electrocardiogram monitoring device in one embodiment of the present application;

[0037] Figure 6 The electrocardiogram obtained by detecting the electrocardiogram activity of a person by the third comparative electrocardiogram monitoring device in one embodiment of the present application;

[0038] Figure 7 It is a schematic diagram of the local structure of an electrode in one embodiment of the present application;

[0039] Figure 8 It is another structural schematic diagram of an electrode in one embodiment of the present application;

[0040] Fig. 9 is a cross-sectional view of an electrode in one embodiment of the present application;

[0041] Fig.10 This is a flow chart of an electrode preparation process in one embodiment of the present application;

[0042] Fig.11 This is a schematic diagram of the structure of a monitoring device in one embodiment of the present application;

[0043] Fig.12 Schematic diagram of the structure of a direction control device in one embodiment of the present application.

[0044] Explanation of the symbols in the drawings: 1. Electrode; 11. Substrate; 12. Conductive layer; 13. Wire; 14. Terminal; 15. First structure; 2. Monitoring device; 21. Left-hand electrode; 22. Right-hand electrode; 23. Controller; 3. Direction control device. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0046] In the prior art, the resistivity of the existing conductive slurry is relatively high and cannot be used to make electrodes for monitoring devices. To address this problem, the present application prepares conductive slurry by mixing components and their mass fractions to obtain a relatively low resistivity that meets the resistivity requirements of electrodes for monitoring devices. The electrodes made with the conductive slurry of the present application have a high sensitivity to induced voltage and can improve the accuracy of the detection results of the monitoring device.

[0047] On the other hand, in the prior art, the electrodes of the monitoring device are made of metal. Metal materials have good thermal conductivity, so that under high temperature conditions, the temperature of the metal electrode is higher, and under low temperature conditions, the temperature of the metal electrode is lower. When a person touches the metal electrode, the temperature of the metal electrode is quickly transmitted to the person's skin, making the person feel uncomfortable. In addition, metal materials are relatively hard, and in some environments, for safety reasons, exposed metal parts are not allowed. Therefore, metal electrodes are not suitable. In order to solve these problems, the present application proposes an electrode, the substrate of the electrode is a flexible material, the temperature of the electrode of the present application changes less with the ambient temperature, which can avoid the electrode temperature being too low or too high, and the electrode of the present application is flexible, which can improve the safety of using the electrode.

[0048] The following non-limiting implementation scheme of the present application is described in detail with reference to the accompanying drawings.

[0049] In one embodiment, the conductive slurry of the present application includes the following components in parts by weight: 60-70 parts of water, 10-20 parts of resin, 1-8 parts of dispersant, 1-8 parts of carbon black, and 0.1-3 parts of curing agent. The present application obtains a conductive slurry with good conductive properties by mixing the weight proportions of the components.

[0050] In the first example, the conductive liquid slurry includes 60 parts of water, 20 parts of resin, 1 part of dispersant, 1 part of carbon black, and 3 parts of curing agent.

[0051] In the second example, the conductive liquid slurry includes 70 parts of water, 10 parts of resin, 8 parts of dispersant, 8 parts of carbon black, and 0.1 parts of curing agent.

[0052] In the third example, the conductive liquid slurry includes 65 parts of water, 12 parts of resin, 6 parts of dispersant, 7 parts of carbon black, and 1.2 parts of curing agent.

[0053] In order to test the conductive properties of the electrode made of the conductive slurry of the present application, the present embodiment uses the conductive slurry of the present application to make an electrode, and the electrode is used to make an electrocardiogram monitoring device, which is used to detect the voltage of a person's electrocardiogram activity. Since the voltage generated by the electrocardiogram activity of a person is small, the electrocardiogram monitoring device has a high sensitivity requirement for the induced voltage in order to measure an electrocardiogram with accurate results.

[0054] As attached Figure 1 , shows an electrocardiogram obtained by using the electrode made of the conductive slurry in the first example as an electrode of the electrocardiogram monitoring device to detect the electrocardiogram activity of the human body, from Figure 1 It can be seen that the R wave of the electrocardiogram is clear and can well present the human electrocardiogram activity. The resistivity of the electrode detected by the detection equipment is 474Ω·cm, which shows that the resistivity of the conductive slurry in the first example is low and the sensitivity of the induced voltage is high. The electrode made of the conductive slurry in the first example meets the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage.

[0055] As attached Figure 2 , shows an electrocardiogram obtained by using the electrode made of the conductive liquid slurry in the second example as an electrode of the electrocardiogram monitoring device to detect the electrocardiogram activity of the human body. Figure 2 It can be seen that the R wave of the electrocardiogram is clear and can well present the human electrocardiogram activity. The resistivity of the electrode detected by the detection equipment is 398KΩ·cm, which means that the resistivity of the conductive slurry in the second example is low and the sensitivity of the induced voltage is high. The electrode made of the conductive slurry in the second example meets the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage.

[0056] As attached Figure 3, shows an electrocardiogram obtained by using the electrode made of the conductive liquid slurry in the third example as an electrode of the electrocardiogram monitoring device to detect the electrocardiogram activity of the human body. Figure 3 It can be seen that the R wave of the electrocardiogram is clear and can better present the human electrocardiogram activity. The resistivity of the electrode detected by the detection equipment is 415Ω·cm, which shows that the resistivity of the conductive slurry in the third example is low and the sensitivity of the induced voltage is high. The electrode made of the conductive slurry in the third example meets the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage.

[0057] Next, a first comparative conductive slurry is prepared. The first comparative conductive slurry includes 40 parts of water, 3 parts of resin, 13 parts of dispersant, 10 parts of carbon black and 4 parts of curing agent. The first comparative conductive slurry is used to prepare a first comparative electrode, and the first comparative electrode is used as an electrode of a first comparative electrocardiogram monitoring device. The first comparative electrocardiogram monitoring device is used to detect a person's heart activity to obtain an electrocardiogram, as shown in the attached figure. Figure 4 As shown. Figure 4 It can be seen that the electrocardiogram is abnormal, and the R wave of the electrocardiogram has obvious interference. The detection equipment detects that the electrode resistivity is 786Ω·cm. The electrode made of the first comparative conductive slurry does not meet the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage and cannot detect the human electrocardiogram activity.

[0058] A second comparative conductive slurry is prepared, and the second comparative conductive slurry includes 80 parts of water, 30 parts of resin, 0.5 parts of dispersant, 0.4 parts of carbon black and 0.05 parts of curing agent. The second comparative conductive slurry is used to prepare a second comparative electrode, and the second comparative electrode is used as an electrode of a second comparative electrocardiogram monitoring device. The second comparative electrocardiogram monitoring device is used to detect the heart activity of a person to obtain an electrocardiogram, as shown in the attached figure. Figure 5 As shown. Figure 5 It can be seen that the electrocardiogram is abnormal, and no clear R wave can be observed in the graph. The resistivity of the electrode detected by the detection equipment is 757Ω·cm. The electrode made of the comparative conductive slurry does not meet the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage, and cannot detect the electrocardiogram activity of a person.

[0059] A third comparative conductive slurry is then prepared, wherein the conductive slurry includes 10-20 parts of carbon fiber, 2-8 parts of dispersant, 3-12 parts of binder resin, 0.5-6 parts of active material, 0.3-4 parts of inorganic base, and 30-50 parts of amide organic solvent. A third comparative electrode is prepared using the third comparative conductive slurry, and the third comparative electrode is used as an electrode of a third comparative electrocardiogram monitoring device. The third comparative electrocardiogram monitoring device is used to detect the heart activity of a person to obtain an electrocardiogram, as shown in the attached figure. Figure 6 As shown. Figure 6It can be seen that the electrocardiogram is abnormal, and no clear R wave can be observed in the graph. The resistivity of the electrode detected by the detection equipment is 658Ω·cm. The electrode made of the third contrast conductive liquid slurry does not meet the sensitivity requirements of the electrocardiogram monitoring device for the induced voltage, and cannot detect the electrocardiogram activity of a person.

[0060] From the above comparison, it can be seen that the conductive slurry of the present application has high sensitivity to the induced voltage, good conductivity, and meets the requirements of the monitoring device for electrode conductivity.

[0061] Furthermore, the resin is at least one of phenolic resin, polyester resin, and polyamide resin. Using at least one of phenolic resin, polyester resin, and polyamide resin to make the conductive slurry can improve the brittleness of the conductive slurry and improve the bonding ability of the conductive slurry, so that the conductive slurry can be bonded to the substrate of the electrode and is not easy to fall off; on the other hand, it can improve the heat resistance and corrosion resistance. In one example, the resin in the conductive slurry is a mixture of phenolic resin and polyester resin. In one example, the resin in the conductive slurry is a mixture of phenolic resin and polyamide resin. In one example, the resin in the conductive slurry contains phenolic resin.

[0062] In one example, the carbon black is at least one of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black, and the carbon black needs to be ground in advance. Using at least one of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black to make a conductive slurry can improve the conductivity of the conductive slurry, and the resistivity of the conductive slurry is low and the sensitivity of the induced voltage is high. Before making the conductive slurry, the carbon black needs to be ground into powder, and the powdered carbon black can be mixed more evenly in the conductive slurry. The carbon black can be any one of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black, or it can be a mixture of any combination of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black.

[0063] In one example, the curing agent is at least one of aliphatic polyisocyanate, aliphatic polyamine, and alicyclic polyamine. The conductive slurry is made of at least one of aliphatic polyisocyanate, aliphatic polyamine, and alicyclic polyamine, so that the conductive slurry can be quickly cured into a conductive layer at room temperature or low temperature. The curing agent can be any one of aliphatic polyisocyanate, aliphatic polyamine, and alicyclic polyamine, or a mixture of any combination of aliphatic polyisocyanate, aliphatic polyamine, and alicyclic polyamine.

[0064] In one example, the water is deionized water. Deionized water does not have any ions or charges, and can react with any other components when making the conductive slurry. Deionized water does not have any impurities, and can avoid affecting the conductive properties of the conductive slurry.

[0065] As attached Figure 7, shows the structure of an electrode of the present application, the electrode 1 includes a substrate 11, and a conductive layer 12 arranged on at least a portion of the surface of the substrate. The conductive layer 12 realizes the function of the electrode being able to conduct electricity, and the substrate 11 serves as a carrier of the conductive layer 12, so that the electrode 1 has a specific shape and is easy to connect with other electronic products or wires. The conductive layer 12 is formed after any of the above-mentioned conductive slurries is coated on the substrate 11. The conductive layer 12 is formed by the conductive slurry, has good conductive properties, and has a low resistivity, so that the electrode 1 has a higher sensitivity to induced voltage. The substrate 11 is a flexible material. On the one hand, the electrode 1 can be formed into various shapes and installed on various special-shaped objects; on the other hand, when the flexible material is exposed to the external environment, people directly collide with the electrode 1, which will not cause harm to people, thereby improving safety.

[0066] In one example, the substrate 11 can be at least one of cloth, leather and flexible plastic. On the one hand, cloth, leather and flexible plastic are relatively soft and can be wrapped on the surface of various objects, have good applicability, and will not cause harm when people collide with them directly; on the other hand, cloth, leather and flexible plastic have poor thermal conductivity. Under high or low temperature conditions, the temperature changes little. When people touch them, the temperature is slowly transferred to the skin, which can prevent the discomfort caused by high temperature and low temperature.

[0067] In one example, as shown in the attached Figure 8 As shown, a plurality of wires 13 are evenly arranged on the surface of the substrate 11, and the plurality of wires 13 are located in the conductive layer 12. One ends of the plurality of wires 13 are gathered together to form a terminal 14, and the terminal 14 is used to connect the electrode 1 to the wire or to connect the electrode 1 to the electronic product. Since the conductive layer 12 is layered, it is difficult to directly connect the conductive layer 12 to the wire or the electronic product. The conductive layer 12 is easily detached when directly connected to the wire or the electronic product, causing the electrode 1 to be unable to conduct current to the wire or the electronic product. The plurality of wires 13 are arranged in the conductive layer 12, and then one ends of the plurality of wires 13 are gathered together to form a terminal 14, and the terminal 14 is used to connect to the external wire or electronic product, so as to improve the stability of the connection between the electrode 1 and the wire or the electronic product.

[0068] In order to improve the conductivity of the electrode, the resistivity of the conductive layer 12 is less than 0.5KΩ·cm. When the resistivity of the conductive layer 12 is less than 0.5KΩ·cm, the electrode 1 has a higher sensitivity to the induced voltage, and a monitoring device made of the electrode 1 can detect weak voltages, thereby improving the accuracy of the detection results.

[0069] Furthermore, in order to ensure that the resistivity of the conductive layer 12 is less than 0.5 KΩ·cm, the thickness of the conductive layer 12 is less than 0.8 mm. When the thickness of the conductive layer 12 is less than 0.8 mm, the resistivity can be controlled below 0.5 KΩ·cm, so that the electrode has good conductivity.

[0070] In one example, as shown in the attached Fig. 9 As shown, a first structure 15 is provided on the surface of the substrate 11. The first structure 15 is used to attach the conductive layer 12. The first structure 15 includes at least one of convex points, raised stripes, and raised grids uniformly arranged on the surface of the substrate 11. The first structure 15 makes the surface of the substrate 11 rough. When the conductive slurry is coated on the substrate 11, the conductive slurry adheres to the first structure 15 and then solidifies to form the conductive layer 12. Since the conductive slurry adheres to the first structure 15, the conductive layer adheres to the first structure, and the conductive layer 12 is not easy to fall off from the substrate. Specifically, when the conductive layer 12 is solidified, the first structure 15 is embedded in the conductive layer 12 and forms a whole with the conductive layer 12, so that the conductive layer is firmly attached to the substrate 11. When the substrate 11 is cloth, the first structure 15 can be a mesh pattern on the surface of the cloth. When the substrate 11 is leather, the first structure 15 can be processed on the leather surface to make the surface of the leather rough.

[0071] In one example, see again the attached Fig. 9 The surface of the substrate 11 is provided with a plurality of evenly arranged wires 13, and the surface of the substrate is provided with a first structure 15, the first structure 15 includes a plurality of raised stripes, and a groove is formed between two raised stripes. The wires 13 can be arranged in the groove, so that when the conductive slurry is solidified, the wires 13 can be embedded in the conductive layer 12, so that the wires 13 are electrically connected to the conductive layer 12.

[0072] As attached Fig.10 , shows a flow chart of an electrode preparation process of the present application, and the electrode preparation process of the present application is used to prepare the above-mentioned electrode. In one embodiment, the electrode preparation process of the present application includes the following steps:

[0073] S101: Pre-treatment, cutting the substrate to remove lint and / or filamentous threads.

[0074] Cutting the substrate into the shape required by the electrode does not require modification of the electrode shape after the electrode is made, thereby avoiding cutting again to damage the conductive layer. Removing the lint and / or filamentary wires can avoid the lint and / or filamentary wires protruding after the conductive layer is formed, thereby preventing the conductive slurry from forming a smooth conductive layer.

[0075] S102: coating, coating the conductive slurry on at least a portion of the outer surface of the substrate.

[0076] The conductive liquid slurry is coated on the outer surface of the substrate to form a conductive layer. The conductive liquid slurry can be coated on a portion of the outer surface of the substrate to form a conductive layer that can form a conductive loop, and the conductive layer can transmit weak current of the human body.

[0077] S103: Curing, curing the substrate coated with the conductive slurry at high temperature to allow the conductive slurry to form a conductive layer.

[0078] The conductive slurry is in liquid form and needs to be cured into a solid conductive layer. High-temperature curing of the substrate coated with the conductive slurry can increase the curing speed and form a conductive layer with good high-temperature performance, thereby improving the stability of the conductive layer.

[0079] Specifically, the curing step includes:

[0080] S1031: Baking: Baking the substrate at a temperature of 80-120°C for 20-40 minutes.

[0081] Under baking conditions, the conductive slurry can form a conductive layer with good stability, and the conductive layer is resistant to high temperatures.

[0082] S1032: Cooling the substrate to obtain an electrode. After baking, the temperature of the substrate is relatively high, and the conductive slurry is not completely solidified into a solid. The substrate is naturally cooled at room temperature to cool and solidify the conductive slurry on the surface of the substrate into a conductive layer.

[0083] As attached Fig.11 , shows a monitoring device 2 of an embodiment of the present application, the monitoring device includes the above-mentioned electrodes, and the monitoring device is used to monitor the electrocardiogram signal of a person in contact with the electrodes or to monitor the signal generated by the contact and release of a person's hand on the electrodes. The electrodes have good electrical conductivity and high sensitivity to induced voltage, and the manufactured monitoring device monitors the electrocardiogram signal or hand-off signal more accurately. In this embodiment, the monitoring device may be an electrocardiogram monitoring device for monitoring the electrocardiogram signal of a person in contact with the electrodes. The monitoring device may be a hand-off monitoring device for monitoring the signal generated by the contact and release of a person's hand on the electrodes. The specific structure of the monitoring device refers to the above-mentioned electrode implementation. Since the monitoring device adopts all the technical solutions of all the above-mentioned electrode implementations, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned implementations, which will not be repeated here one by one.

[0084] In one example, the monitoring device 2 includes a left-hand electrode 21, a right-hand electrode 22, and a controller 23, and one end of the left-hand electrode 21 and the right-hand electrode 22 are electrically connected to the controller 23. The left-hand electrode 21 is used to sense the voltage on the left hand of the person, and the right-hand electrode 22 is used to sense the voltage on the right hand of the person. The left hand and the right hand of the person are connected through the human body, so that the monitoring device forms a circuit, which can monitor the person's electrocardiographic activity, or monitor the person's hand-off activity.

[0085] In order to enable the monitoring device to monitor a larger left hand activity area and / or right hand activity area, and improve the accuracy of the monitoring results. The monitoring device includes a plurality of left hand electrodes 21, and the plurality of left hand electrodes 21 are connected in parallel. The left hand electrodes 21 can be evenly distributed in a larger area, so that when a person's left hand touches the area, the voltage of the person's left hand can be monitored, thereby improving the accuracy of monitoring the left hand voltage. The monitoring device includes a plurality of right hand electrodes 22, and the plurality of right hand electrodes 22 are connected in parallel. The right hand electrodes 22 can be evenly distributed in a larger area, so that when a person's right hand touches the area, the voltage of the person's right hand can be monitored, thereby improving the accuracy of monitoring the right hand voltage.

[0086] As attached Fig.12 , shows a direction control device 3 of an embodiment of the present application, and the above-mentioned monitoring device 2. The specific structure of the direction control device refers to the above-mentioned monitoring device implementation. Since the direction control device adopts all the technical solutions of all the above-mentioned monitoring device implementations, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned implementations, which will not be repeated here one by one.

[0087] In one example, the direction control device further includes a body, and the electrode 1 of the monitoring device 2 is arranged on the surface of the body. When a person's hand touches the surface of the body, the monitoring device can sense the voltage of the person's hand.

[0088] The present application also provides a vehicle, which includes the above-mentioned direction control device. The specific structure of the direction control device refers to the above-mentioned direction control device implementation. Since the present vehicle adopts all the technical solutions of all the above-mentioned direction control device implementations, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned implementations, which will not be repeated here one by one.

[0089] When the vehicle is a car, the direction operating device may be a steering wheel; when the vehicle is an aircraft, the direction operating device may be a joystick. Therefore, the type of vehicle is not specifically limited. Based on the above scheme. The present application also proposes a vehicle (not shown in the figure), on which the above-mentioned intelligent direction control device is provided. The specific structure of the intelligent direction control device refers to the above-mentioned embodiment. Since the present vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0090] It is understandable that the vehicle may include various means of transportation, such as cars, aircraft, ships, etc. In addition, the vehicle mentioned in this application may also include some simulation equipment that simulates traditional means of transportation and carries people. For example, operation experience equipment, teaching equipment, VR game equipment, etc. that simulate the operation experience of racing, airplanes, or ships. As long as the equipment carries people and is prone to relatively large vibrations, it can meet the definition of the vehicle of this application.

[0091] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0092] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity 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, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0093] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electrode, which is used in a monitoring device, characterized in that: The electrode comprises a substrate, and a conductive layer disposed on at least a portion of the surface of the substrate, wherein the conductive layer is formed by coating a conductive slurry on the substrate, and the substrate is a flexible material; The conductive liquid slurry is composed of the following components in parts by weight: 60-70 parts of water, 10-20 parts of resin, 1-8 parts of dispersant, 1-8 parts of carbon black, and 0.1-3 parts of curing agent; The resin is at least one of phenolic resin, polyester resin and polyamide resin; The dispersant is at least one of polycarboxylate, poly(meth)acrylic acid derivative, and maleic anhydride copolymer; The carbon black is at least one of electric carbon black, superconductive carbon black, special conductive carbon black and acetylene carbon black, and the carbon black needs to be ground in advance; The curing agent is at least one of aliphatic polyisocyanate, aliphatic polyamine, and alicyclic polyamine; The water is deionized water; The resistivity of the conductive layer is 398 to 474 Ω·cm; The thickness of the conductive layer is less than 0.8 mm.

2. The electrode according to claim 1, characterized in that The substrate surface is provided with a first structure, the first structure is used to attach the conductive layer, and the first structure includes at least one of convex points, convex stripes, and convex grids uniformly arranged on the substrate surface.

3. An electrode preparation process, characterized in that: For preparing the electrode according to claim 1, the preparation process of the electrode comprises the following steps: Pre-treatment, cutting the substrate to remove lint and / or filamentous threads; Coating: coating the conductive slurry on at least a portion of the outer surface of the substrate; Curing: Curing the substrate coated with the conductive slurry at high temperature to allow the conductive slurry to form a conductive layer.

4. The electrode preparation process according to claim 3, characterized in that: The curing step comprises: Baking: baking the substrate at a temperature of 80 to 120° C. for 20 to 40 minutes; The substrate is cooled to obtain the electrode.

5. A monitoring device, characterized in that: The monitoring device comprises an electrode as described in any one of claims 1 to 2, wherein the monitoring device is used to monitor the electrocardiogram signal of a person who contacts the electrode or to monitor the signal generated by the contact and release action of a person's hand on the electrode.

6. The monitoring device according to claim 5, characterized in that: The monitoring device comprises a left-hand electrode, a right-hand electrode and a controller, and one end of each of the left-hand electrode and the right-hand electrode is electrically connected to the controller.

7. The monitoring device according to claim 6, characterized in that: The monitoring device comprises a plurality of left-hand electrodes, wherein the plurality of left-hand electrodes are connected in parallel; and / or The monitoring device comprises a plurality of right-hand electrodes, and the plurality of right-hand electrodes are connected in parallel.

8. A direction control device, characterized in that: Comprising a monitoring device as described in any one of claims 5-7.

9. The direction control device according to claim 8, characterized in that: The direction control device further comprises a body, and the electrodes of the monitoring device are arranged on the surface of the body.

10. A carrier, characterized in that: It comprises a direction control device as described in any one of claims 8-9.

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