Drying device and pole piece drying equipment

Abstract

The utility model discloses a drying device, the drying device is used for processing a to-be-processed pole piece, and the drying device comprises at least two conductive strips and an infrared plate. Each conductive strip comprises a first straight part, a second straight part and a bent part, the bent part comprises two opposite ends, the two ends of the bent part are connected to the first straight part and the second straight part respectively, the first straight parts and the second straight parts are arranged at intervals, and the conductive strips are arranged at intervals. The infrared plates are arranged on the sides, away from the first straight parts, of the second straight parts, and the infrared plates abut against the second straight parts. Wherein each conductive strip is configured to be applied with electric energy to supply power to the infrared board. The infrared plates abut against the second straight parts so that the infrared plates can be connected to the conductive strips, poor connection of the infrared plates in the working state is avoided, and the working stability of the drying device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery production equipment, and in particular to a drying device and a pole piece drying equipment. Background Art

[0002] In modern society, electrode sheets are usually processed by coating, drying, rolling and slitting to meet the performance requirements of batteries. Pole sheet drying is an important part of manufacturing pole sheets. In recent years, infrared heating technology has been widely used in pole sheet processing. Infrared heating technology has the advantages of high efficiency and low energy consumption. The infrared heating plate is based on glass, with a heating layer, electrode and insulating layer coated on it.

[0003] In the prior art, the main way to conduct electricity in infrared heating plates is to sinter lead wires and then connect the lead wires with wires, that is, to connect the infrared heating plates to the wires by welding. However, this process of sintering lead wires on glass requires multiple steps, which is relatively complicated. There is also the problem of poor sintering, that is, the problem of unstable welding, which leads to low stability of the sintering point in a high temperature environment, and the sintering point is prone to burnt black, which results in a short service life of the infrared heating plate, and a high production cost of the infrared heating plate, which increases the production cost of the electrode processing. Utility Model Content

[0004] The main purpose of this application is to propose a drying device and an electrode drying equipment, which aims to solve the technical problems of unstable welding and complicated procedures caused by the fact that the conductive method of the infrared heating plate is mainly through sintering lead wires.

[0005] To achieve the above-mentioned purpose, the present application proposes a drying device, which is used for processing a pole piece to be processed, and the drying device comprises:

[0006] At least two conductive strips, each of which comprises a first straight portion, a second straight portion and a bent portion, the bent portion comprises two oppositely arranged ends, the two ends of the bent portion are respectively connected to the first straight portion and the second straight portion, along a first direction, the first straight portion and the second straight portion are arranged at intervals, and the conductive strips are arranged at intervals;

[0007] an infrared plate, the infrared plate being disposed on a side of each of the second straight portions away from each of the first straight portions, the infrared plate abutting against each of the second straight portions;

[0008] Wherein, each of the conductive strips is configured to be connected to a power source so that the infrared panel generates heat energy.

[0009] In some embodiments, the drying device includes an insulating member, which is disposed on a side of each of the first straight portions away from each of the second straight portions, and the insulating member abuts against each of the first straight portions to provide pressure on each of the conductive strips.

[0010] In some embodiments, the first projection plane is a plane perpendicular to the first direction, each of the conductive strips forms a first orthographic projection on the first projection plane, the insulating member forms a second orthographic projection on the first projection plane, and the first orthographic projection coincides with the second orthographic projection.

[0011] In some embodiments, each of the conductive strips includes a raised portion, which is disposed on a side of the first straight portion that is away from the second straight portion, and is connected to the first straight portion. The raised portion extends out of the first straight portion in a direction opposite to the first direction, and in a working state, the raised portion is configured to be connected to the power supply.

[0012] In some embodiments, the insulating member includes a first through hole, the protrusion is penetrated by the first through hole, and the protrusion extends out of the insulating member in a direction opposite to the first direction.

[0013] In some embodiments, power is provided to the conductive strip via a power supply wire, the insulating member defines a first space, the first space is located on a side of the insulating member away from the conductive strip, the protrusion is disposed in the first space, and the power supply wire is disposed in the first space for connecting the protrusion. In some embodiments, the second direction is set to be a direction perpendicular to the first direction, along the second direction, the insulating member includes a first end wall arranged at intervals, along the first direction, the insulating member includes a second end wall and a third end wall arranged at intervals, the first end wall, the second end wall and the third end wall define the first space, and the power supply wire extends out of the first space in a direction perpendicular to the first direction and the second direction to connect to an external power source.

[0014] In some embodiments, the drying device includes a partition portion, the partition portion is disposed between the first straight portion and the second straight portion, and the partition portion is connected to the second straight portion.

[0015] In some embodiments, the drying device includes at least two conductive strips, the infrared plate includes a first end and a second end arranged at intervals, two conductive strips are arranged at the first end, and the other two conductive strips are arranged at the second end.

[0016] The second aspect of the present application also provides a pole piece drying device, the pole piece drying device comprising:

[0017] The drying device as described in any one of the above embodiments;

[0018] A reflecting device, along the opposite direction of the first direction, the reflecting device is arranged on a side of the conductive strip away from the infrared plate, and the reflecting device is used to reflect infrared rays;

[0019] A temperature measuring device is arranged at intervals on the infrared plate to detect the temperature of the infrared plate; and a power supply device is connected to the conductive strip.

[0020] Compared with the prior art, the beneficial effects of this application are:

[0021] In the technical solution of the present application, the conductive strip of the present application includes a bending portion and a first straight portion, and the bending portion and the first straight portion provide pressure to the second straight portion, and part of the pressure direction is parallel to the first direction, so that the infrared plate in the second straight portion abuts against each second straight portion. Compared with the prior art, in which the conductive strip and the infrared plate are connected by welding, the complexity of the connection method process in the present application is lower, and the production cost of the drying device is reduced. In the present application, each conductive strip is configured to be applied with electrical energy so that the infrared plate generates heat energy. Since the conductive strip is abutted against the infrared plate, so that the electrically connected part in the drying device is the conductive strip, the conductive strip and the infrared plate are not prone to poor sintering problems, so as to improve the reliability of the conduction between the drying device and the external power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a first side view schematic diagram of the first drying device in the embodiment of the present application; wherein the diagram shows a first space, a first end wall, a second end wall and a third end wall;

[0024] Figure 2 This is a second side view schematic diagram of the first drying device in the embodiment of the present application; wherein the figure shows the electrode piece to be processed; it should be noted that the electrode piece to be processed can move in a direction perpendicular to the first direction and the second direction;

[0025] Figure 3 It is a partial side view schematic diagram of the first drying device in the embodiment of the present application;

[0026] Figure 4It is a partial side view schematic diagram of the second drying device in the embodiment of the present application; wherein the drying device includes a partition portion and an insulating member;

[0027] Figure 5 It is a partial side view schematic diagram of the third drying device in the embodiment of the present application; wherein the drying device includes a protruding portion, a spacer portion and an insulating member;

[0028] Figure 6 It is a partial side view schematic diagram of the fourth drying device in the embodiment of the present application; wherein the drying device includes a protruding portion;

[0029] Figure 7 It is a partially enlarged schematic diagram of the third drying device in the embodiment of the present application; wherein the first through hole is shown;

[0030] Figure 8 It is a first side view schematic diagram of the first electrode drying device in the embodiment of the present application; wherein the electrode drying device comprises a power supply wire, a temperature measuring device, a reflection device and a power supply device, and the power supply wire extends from the first through hole to connect the power supply device;

[0031] Fig. 9 This is a second side view schematic diagram of the working state of the first electrode drying equipment in the embodiment of the present application; wherein the figure shows the electrode to be processed.

[0032] Description of Figure Numbers:

[0033] Drying device 10;

[0034] Conductive strip 100;

[0035] A first straight portion 110;

[0036] A second straight portion 120;

[0037] Bending portion 130;

[0038] A raised portion 140;

[0039] A spacer 150;

[0040] Infrared board 200;

[0041] Insulation member 300;

[0042] A first through hole 310;

[0043] First space 320;

[0044] First end wall 321;

[0045] A second end wall 322;

[0046] A third end wall 323;

[0047] The pole piece to be processed 20;

[0048] Pole drying equipment 30;

[0049] Reflection device 40;

[0050] Power supply device 50;

[0051] Temperature measuring device 60;

[0052] Power supply wire 70;

[0053] First direction X;

[0054] The second direction Y.

[0055] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiment is only a component embodiment of the present application, rather than an embodiment of the entire component. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, when an element is said to be "fixed to" another element, it can be directly on the other element, or one or more intervening elements can exist between them. When an element is said to be "connected to" another element, it can be directly connected to the other element, or one or more intervening elements can exist between them.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0060] In the prior art, the main way to conduct electricity in infrared heating plates is to sinter lead wires and then connect the lead wires with wires, that is, to connect the infrared heating plates to the wires by welding. However, this process of sintering lead wires on glass requires multiple steps, which is relatively complicated. There is also the problem of poor sintering, that is, the problem of unstable welding, which leads to low stability of the sintering point in a high temperature environment, and the sintering point is prone to burnt black, which results in a short service life of the infrared heating plate, and a high production cost of the infrared heating plate, which increases the production cost of the electrode processing.

[0061] To solve the above problems, see Figures 1 to 7 The present application proposes a drying device 10, which is used to process a pole piece 20 to be processed. The drying device 10 includes at least two conductive strips 100 and an infrared plate 200. The outer contour of the pole piece 20 to be processed can be in a variety of structures. In some embodiments, the pole piece 20 to be processed can be a rectangular parallelepiped. In other embodiments, the pole piece 20 to be processed can be a polygon. In other embodiments, the pole piece 20 to be processed can be a cylinder, etc., depending on the actual situation. The embodiment of the present application takes the rectangular parallelepiped pole piece 20 to be processed as an example. And the number of pole pieces 20 to be processed that are processed at the same time can be one or more. For example, the number of pole pieces 20 to be processed can be one, two, three, four, five, six, seven, eight, nine, ten, etc., depending on the actual situation. It should be noted that in the working state, the pole piece 20 to be processed is configured to be arranged on one side of the infrared plate 200 and spaced apart from the infrared plate 200. In some embodiments, in the working state, the pole piece 20 to be processed is configured to be spaced apart from the conductive strip 100.

[0062] The number of the conductive strips 100 is one or more. For example, the number of the conductive strips 100 can be one, two, three, four, five, six, seven, eight, nine, ten, etc., depending on the actual situation. Each conductive strip 100 includes a first straight portion 110, a second straight portion 120 and a bent portion 130. The bent portion 130 includes two oppositely arranged ends, and the two ends of the bent portion 130 are respectively connected to the first straight portion 110 and the second straight portion 120. In some embodiments, the third projection plane is a plane parallel to the first direction X, and the bent portion 130 forms a seventh orthographic projection on the third projection plane, and the seventh orthographic projection is a fan. Further, the angle of the arc in the seventh orthographic projection is 180 degrees. The outer contour of the first straight portion 110 can be in a variety of structures. In some embodiments, the first straight portion 110 can be a rectangular parallelepiped. In other embodiments, the first straight portion 110 can be a polygon. In other embodiments, the first straight portion 110 may be in the form of a cylinder, etc., depending on the actual situation. The embodiment of the present application takes the rectangular first straight portion 110 as an example. The outer contour of the second straight portion 120 may be in a variety of structures. In some embodiments, the second straight portion 120 may be in the form of a rectangular parallelepiped. In other embodiments, the second straight portion 120 may be in the form of a polygon. In other embodiments, the second straight portion 120 may be in the form of a cylinder, etc., depending on the actual situation. The embodiment of the present application takes the rectangular second straight portion 120 as an example. Along the first direction X, the first straight portion 110 and the second straight portion 120 are arranged at intervals, and along the first direction X, the conductive strips 100 are arranged at intervals. The material of the conductive strip 100 is a material with good electrical conductivity.

[0063] The infrared plate 200 is disposed on a side of each second straight portion 120 away from each first straight portion 110, and the infrared plate 200 abuts against each second straight portion 120. The outer contour of the infrared plate 200 can be in a variety of structures. In some embodiments, the infrared plate 200 can be in a rectangular parallelepiped. In other embodiments, the infrared plate 200 can be in a polygonal shape. In other embodiments, the infrared plate 200 can be in a cylindrical shape, etc., depending on the actual situation. The embodiment of the present application takes a rectangular parallelepiped infrared plate 200 as an example.

[0064] The conductive strip 100 of the present application includes a bending portion 130 and a first straight portion 110. The bending portion 130 and the first straight portion 110 provide pressure to the second straight portion 120, and part of the pressure direction is parallel to the first direction X, so that the infrared plate 200 in the second straight portion 120 abuts against each second straight portion 120. Compared with the prior art, in which the conductive strip and the infrared plate are connected by welding, the connection method in the present application is less complicated, thereby reducing the production cost of the drying device 10. In addition, in the present application, each conductive strip 100 is configured to be connected to a power source so that the infrared plate 200 generates heat energy. Since the conductive strip 100 and the infrared plate 200 are abutted and connected, so that the electrically connected part in the drying device 10 is the conductive strip 100, the conductive strip 100 and the infrared plate 200 are not likely to have a problem of poor sintering, so as to improve the reliability of the conduction between the drying device 10 and the external power supply. Infrared plate

[0065] The drying device 10 includes an insulating member 300, see Figure 1 , Figure 4 as well as Figure 5 . In some embodiments, the material of the insulating member 300 is a material with good thermal insulation and insulation properties. The insulating member 300 is disposed on a side of each first straight portion 110 that is away from each second straight portion 120, and the insulating member 300 abuts against the first straight portion 110 to provide pressure on each conductive strip 100. In some embodiments, the first straight portion 110 includes a first wall that is away from each second straight portion 120, and the insulating member 300 abuts against the first wall. Further, the first wall is a plane perpendicular to the first direction X, and along the direction perpendicular to the first direction X, the first wall abuts against the insulating member 300 everywhere. Further, the insulating member 300 includes a second wall perpendicular to the first direction X, and along the direction perpendicular to the first direction X, the first wall abuts against the second wall everywhere. It should be noted that, in some embodiments, the drying device 10 includes a working state, in which the insulating member 300 abuts against the first straight portion 110 to reduce the interval between the first straight portion 110 and the second straight portion 120 along the first direction X, that is, to reduce the interval distance from the center of the first straight portion 110 to the center of the second straight portion 120. Further, in the non-working state, along the first direction X, the interval between the first straight portion 110 and the second straight portion 120 is a distance A1, and in the working state, along the first direction X, the interval between the first straight portion 110 and the second straight portion 120 is a distance A2, and the distance A1 and the distance A2 satisfy: 60%≤A2 / A1<100%, and illustratively, the ratio A2 / A1 can be 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, etc.

[0066] The first projection plane is a plane perpendicular to the first direction X. Each conductive strip 100 forms a first orthographic projection on the first projection plane, and the insulating member 300 forms a second orthographic projection on the first projection plane. The first orthographic projection coincides with the second orthographic projection, that is, along the first direction X, each conductive strip 100 completely coincides with the insulating member 300, so that the insulating member 300 is suitable for providing pressure to each conductive strip 100. In some embodiments, the area of ​​the first orthographic projection is S1, and the area of ​​the second orthographic projection is S2. The area S1 and the area S2 satisfy: S1<S2. For example, the area S1 can be 95% S2, 90% S2, 85% S2, 80% S2, 75% S2, 70% S2, and so on.

[0067] Each conductive strip 100 includes a protrusion 140, see Figure 5 as well as Figure 6 , the outer contour of the raised portion 140 can be in a variety of structures. In some embodiments, the raised portion 140 can be a rectangular parallelepiped. In other embodiments, the raised portion 140 can be a polygon. In other embodiments, the raised portion 140 can be a cylinder, etc., depending on the actual situation. The embodiment of the present application takes the rectangular raised portion 140 as an example. The raised portion 140 is arranged on the side of the first straight portion 110 away from the second straight portion 120, the raised portion 140 is connected to the first straight portion 110, and the raised portion 140 extends out of the first straight portion 110 in the opposite direction of the first direction X. In the working state, the raised portion 140 is configured to be connected to a power source to provide electrical energy to each conductive strip 100. In some embodiments, the power source and the raised portion 140 are connected by a conductive wire. Further, the conductive wire is welded to the raised portion 140.

[0068] The insulating member 300 includes a first through hole 310, see Figure 7, the outer contour of the first through hole 310 can be in a variety of structures. In some embodiments, the first through hole 310 can be rectangular. In other embodiments, the first through hole 310 can be polygonal. In other embodiments, the protrusion 140 can be circular, etc., depending on the actual situation. The embodiment of the present application takes the circular first through hole 310 as an example. The protrusion 140 is arranged in the first through hole 310, and the protrusion 140 extends out of the insulating member 300 in the opposite direction of the first direction X. In some embodiments, the power supply and the protrusion 140 are connected by a conductive wire, and the insulating member 300 is arranged between the first straight portion 110 and the conductive wire to separate each first straight portion 110 and the conductive wire. Further, the second projection plane is a plane parallel to the first direction X, each protrusion 140 forms a third orthographic projection on the second projection plane, and the insulating member 300 forms a fourth orthographic projection on the second projection plane, and the third orthographic projection partially overlaps with the fourth orthographic projection. The power supply wire 70 provides electric energy to the conductive strip 100. It should be noted that the power supply wire 70 is electrically connected to the conductive strip 100. In some embodiments, the power supply wire 70 is welded to the conductive strip 100. The insulating member 300 defines a first space 320, and the first space 320 is located on the side of the insulating member 300 away from the conductive strip. The protrusion 140 is disposed in the first space 320, and the power supply wire 70 is disposed in the first space 320 for connecting the protrusion 140. By disposing the power supply wire 70 in the first space 320, the infrared panel 200 and the power supply wire 70 are separated, and the power supply wire 70 is protected from normal operation.

[0069] In some embodiments, the second direction Y is set to be a direction perpendicular to the first direction X. Along the second direction Y, the insulating member 300 includes a first end wall 321 arranged at intervals. Along the first direction, the insulating member 300 includes a second end wall 322 and a third end wall 323 arranged at intervals. Further, the first end wall 321 is connected to the third end wall 323. Further, the first end wall 321 is connected to the second end wall 322. Further, the first end wall 321, the second end wall 322 and the third end wall 323 in the insulating member 300 are integrally formed. The first end wall 321, the second end wall 322 and the third end wall 323 define a first space 320, and the power supply wire 70 extends out of the first space 320 in a direction perpendicular to the first direction and the second direction Y to connect with an external power supply. Further, the first space 320 defines a conductive hole, which is used to connect the external power supply to the power supply wire 70, so as to further separate the infrared panel 200 and the power supply wire 70, and further protect the normal operation of the power supply wire 70.

[0070] The drying device 10 includes a partition 150, see Figure 5, the outer contour of the spacer 150 can be in a variety of structures. In some embodiments, the spacer 150 can be a rectangular parallelepiped. In other embodiments, the spacer 150 can be a polygon. In other embodiments, the spacer 150 can be a cylinder, etc., depending on the actual situation. The embodiment of the present application takes the rectangular spacer 150 as an example. The material of the spacer 150 has heat insulation and insulation properties. In some embodiments, the material of the spacer 150 includes plastic. The spacer 150 is arranged between the first straight portion 110 and the second straight portion 120, and the spacer 150 is used to arrange the first straight portion 110 and the second straight portion 120 at intervals. In some embodiments, the spacer 150 is connected to the second straight portion 120, and in the non-working state, the spacer 150 is arranged at intervals from the first straight portion 110. In other embodiments, the spacer 150 is connected to the first straight portion 110, and in the non-working state, the spacer 150 is arranged at intervals from the second straight portion 120.

[0071] The drying device 10 includes at least two conductive strips 100. It should be noted that, in some embodiments, the number of conductive strips in the same drying device 10 is at least two, and illustratively, the number of conductive strips can be two, three, four, five, six, seven, eight, nine, etc. The infrared panel 200 includes a first end portion and a second end portion arranged at intervals, two conductive strips 100 are provided at the first end portion, and another two conductive strips 100 are provided at the second end portion. In some embodiments, the first straight pieces of each conductive strip 100 at the first end portion are connected to each other, and the first straight pieces of each conductive strip 100 at the second end portion are connected to each other.

[0072] In other embodiments

[0073] The second aspect of the present application also provides a pole piece drying device 30, see Figure 8 as well as Fig. 9 The electrode drying equipment 30 includes any one of the drying devices 10 in the above embodiments, a reflection device 40, a temperature measuring device 60 and a power supply device 50.

[0074] Along the opposite direction of the first direction X, the reflecting device 40 is arranged on the side of the conductive strip 100 away from the infrared plate 200, and is used to reflect infrared rays. The reflecting device 40 is used to reflect the thermal radiation generated by the infrared plate 200 to the electrode 20 to be processed, so as to provide heating efficiency.

[0075] The temperature measuring device 60 is arranged at intervals on the infrared plate 200 to detect the temperature of the infrared plate 200 and to detect the real-time temperature of the infrared plate 200. In some embodiments, the temperature measuring device 60 includes a thermocouple temperature measuring device.

[0076] The power supply device 50 is connected to the conductive strip 100 to provide power to the conductive strip 100. In some embodiments, the power supply device 50 includes a generator.

[0077] It should be noted that other contents of the power supply device 50, the temperature measuring device 60 and the reflection device 40 disclosed in the present application can be referred to in the prior art and will not be described in detail here.

[0078] In addition, it should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A drying device, characterized in that: The drying device is used for processing the electrode to be processed, and the drying device comprises: Conductive strips, each of which comprises a first straight portion, a second straight portion and a bent portion, the bent portion comprises two oppositely arranged ends, the two ends of the bent portion are respectively connected to the first straight portion and the second straight portion, along a first direction, the first straight portion and the second straight portion are arranged at intervals, and each of the conductive strips is arranged at intervals; an infrared plate, the infrared plate being disposed on a side of each of the second straight portions away from each of the first straight portions, the infrared plate abutting against each of the second straight portions; Wherein, each of the conductive strips is configured to be connected to a power source to supply power to the infrared panel.

2. The drying device according to claim 1, characterized in that: The drying device includes an insulating member, which is disposed on a side of each of the first straight portions away from each of the second straight portions, and the insulating member abuts against each of the first straight portions to provide pressure on each of the conductive strips.

3. The drying device according to claim 2, characterized in that: The first projection plane is a plane perpendicular to the first direction. Each of the conductive strips forms a first orthographic projection on the first projection plane. The insulating member forms a second orthographic projection on the first projection plane. The first orthographic projection coincides with the second orthographic projection.

4. The drying device according to claim 2, characterized in that: Each of the conductive strips includes a raised portion, which is arranged on a side of the first straight portion away from the second straight portion, is connected to the first straight portion, and extends out of the first straight portion in a direction opposite to the first direction. In a working state, the raised portion is configured to be connected to the power supply.

5. The drying device according to claim 4, characterized in that: The insulating member includes a first through hole, the protrusion is penetrated by the first through hole, and the protrusion extends out of the insulating member in a direction opposite to the first direction.

6. The drying device according to claim 5, characterized in that: Providing electrical energy to the conductive strips through power conductors, The insulating member defines a first space, the first space is located on a side of the insulating member away from the conductive strip, the protrusion is arranged in the first space, and the power supply wire is arranged in the first space for connecting the protrusion.

7. The drying device according to claim 6, characterized in that: The second direction is set to be a direction perpendicular to the first direction. Along the second direction, the insulating member includes a first end wall arranged at intervals. Along the first direction, the insulating member includes a second end wall and a third end wall arranged at intervals. The first end wall, the second end wall and the third end wall define the first space. The power supply wire extends out of the first space along a direction perpendicular to the first direction and the second direction to be connected to an external power supply.

8. The drying device according to claim 1, characterized in that: The drying device includes a partition portion, the partition portion is disposed between the first straight portion and the second straight portion, and the partition portion is connected to the second straight portion.

9. The drying device according to claim 1, characterized in that: The drying device comprises at least two conductive strips, the infrared plate comprises a first end and a second end which are arranged at intervals, one conductive strip is arranged at the first end, and the other conductive strip is arranged at the second end.

10. A pole piece drying device, characterized in that: The electrode drying equipment comprises: The drying device according to any one of claims 1 to 9; A reflecting device, along the opposite direction of the first direction, the reflecting device is arranged on a side of the conductive strip away from the infrared plate, and the reflecting device is used to reflect infrared rays; A temperature measuring device, wherein the infrared plate of the temperature measuring device is arranged on the electrode drying device to detect the temperature of the infrared plate; and a power supply device, wherein the power supply device is connected to the conductive strip.

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