Charging contact, charging device and AGV

Abstract

The invention belongs to the technical field of AGVs, and particularly relates to a charging contact, a charging device and an AGV, and the charging contact comprises an insulating base, a wire harness body, a contact part, a movable part and a mounting shell; the mounting shell is connected to the insulating base; a mounting cavity is arranged between the mounting shell and the insulating base; the movable part is arranged in the mounting cavity; the contact part is connected with one end of the movable part, so that the contact part moves towards or away from the mounting cavity; one end of the wire harness body penetrates through the insulating base and is connected with the contact component; a mounting gap is formed between the contact part and the mounting shell; and the mounting gap is communicated with the mounting cavity. According to the invention, poor contact between the contact component and the charging contact plate can be avoided; therefore, the use stability and safety are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of AGV vehicles, and in particular relates to a charging contact, a charging device and an AGV vehicle. Background Art

[0002] AGV is the abbreviation of Automated Guided Vehicle. It is a kind of unmanned transportation equipment with charging contacts, charging devices and AGV, which has the functions of automatic navigation, handling, positioning, obstacle avoidance, etc. AGV vehicles usually use laser, vision, electromagnetic and other navigation methods, and can drive autonomously in complex environments to complete various transportation tasks. AGV vehicles are widely used in logistics, manufacturing, medical and other fields. However, the operation of AGV depends on various sensors and electrical components, among which the contact pad is a key component for achieving electrical connection and signal transmission.

[0003] In the prior art, the touch panel usually adopts a relatively simple planar structure design, and the contact mode between the touch panel and the corresponding contact component is relatively simple; the touch panel and the contact component can only be charged in a horizontal ground environment. However, when facing an inclined ground, due to the influence of gravity and vehicle movement, poor contact is likely to occur between the contact head and the contact component, thereby reducing the safety and stability of use. Summary of the invention

[0004] The purpose of the present invention is to provide a charging contact to solve any of the above-mentioned technical problems in view of the deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A charging contact comprises an insulating base, a wiring harness body, a contact component, a movable component and a mounting shell; the mounting shell is connected to the insulating base; a mounting cavity is provided between the mounting shell and the insulating base; the movable component is arranged inside the mounting cavity; and the contact component is connected to one end of the movable component so that the contact component moves toward or away from the mounting cavity; one end of the wiring harness body passes through the insulating base and is connected to the contact component; and a mounting gap is provided between the contact component and the mounting shell; the mounting gap is connected to the mounting cavity.

[0007] Preferably, the size L0 of the installation gap satisfies: 1.00mm≤L0≤1.11mm.

[0008] Preferably: the movable component is a compression spring; one end of the compression spring is connected to the insulating base; the other end of the compression spring passes through the installation cavity 41 and is connected to the contact component.

[0009] Preferably, when the extrusion spring is in a non-extrusion state, an angle α between a vertical plane formed by the vertical direction of the installation cavity and the contact component satisfies: 3.89°≤α≤6.56°;

[0010] And / or, when the extrusion spring is in an extrusion state, an angle β between a vertical plane formed in the vertical direction of the installation cavity and the contact component satisfies: 1.37°≤β≤5.13°.

[0011] Preferably: an assembly cavity is provided on one side end of the contact component facing the wiring harness body; a first conductive connector is provided in the assembly cavity; a second conductive connector is provided on one side end of the wiring harness body facing the contact component; the second conductive connector can penetrate into the assembly cavity and be connected to the first conductive connector.

[0012] Preferably: the second conductive connector includes a limiting section and a clamping section connected to each other; the clamping section is detachably connected to the inner wall of the first conductive connector; the outer wall of the limiting section is tightly attached to the inner wall of the assembly cavity; and the limiting section is connected to the main body of the wiring harness.

[0013] Preferably: the wiring harness body comprises a sleeve, a wire and a terminal; the sleeve is sleeved on the outer surface of the wire; one end of the wire is connected to the second conductive connector; and the other end of the wire is connected to the terminal.

[0014] The present invention also discloses a charging device, comprising a charging connector and the charging contact, wherein the charging connector comprises an insulating support, a conductive component and a conductive touch plate; the conductive touch plate is connected to one side surface of the insulating support; the conductive component passes through the insulating support and is connected to the conductive touch plate; the conductive touch plate can abut against the contact component.

[0015] Preferably: the conductive component includes a conductive block, a screw and a bolt; the conductive block is arranged inside the insulating support and abuts against the bottom of the conductive touch plate; the screw passes through the conductive touch plate and the conductive block, and is threadedly connected to the conductive touch plate and the bolt respectively.

[0016] The invention also discloses an AGV vehicle, comprising the charging device.

[0017] The beneficial effects of the present invention are that the technical solution can promote the convenience and flexibility of contact charging of the contact component through the reciprocating performance of the movable component, and by adding an installation gap between the contact component and the mounting shell during the assembly process, poor contact between the contact component and the charging contact plate can be effectively avoided; thereby effectively avoiding a series of problems such as excessive temperature rise and signal transmission errors caused by unstable current transmission; thereby improving the stability and safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will refer to the attached Figures 1 to 7 To describe the features, advantages and technical effects of exemplary embodiments of the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of a charging contact according to an embodiment of the present invention;

[0020] Figure 2 A front view of a charging contact according to an embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of a charging contact according to an embodiment of the present invention;

[0022] Figure 4 A cross-sectional view of a wiring harness body of a charging contact according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall structure of a charging device according to an embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of a charging connector of a charging device according to an embodiment of the present invention;

[0025] Figure 7 FIG. 4 is a cross-sectional view of a charging connector of a charging device according to an embodiment of the present invention.

[0026] In the figure: 1-insulating base; 11-first positioning hole; 2-contact component; 22-assembly cavity; 21-first conductive connector; 3-movable component; 31-extrusion spring; 4-mounting shell; 41-mounting cavity; 42-mounting gap; 421-horizontal gap; 422-longitudinal gap; 5-wiring harness body; 501-sleeve; 502-conducting wire; 503-connecting terminal; 51-second conductive connector; 511-limiting section; 512-clamping section; 513-assembly gap; 600-charging connector; 610-insulating support; 611-second positioning hole; 612-partitioning heat dissipation groove; 620-conductive component; 621-conductive block; 622-screw; 623-bolt; 624-gasket; 625-protective cover; 630-conductive touch plate. DETAILED DESCRIPTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0028] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and multiple situations exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] The following is combined with Figure 1 to Figure 7 The present invention is further described in detail, but is not intended to limit the present invention.

[0033] like Figure 1 and 2As shown, in one embodiment of the present invention, the charging contact comprises an insulating base 1, a wiring harness body 5, a contact part 2, a movable part 3 and a mounting shell 4; the mounting shell 4 is connected to the insulating base 1; a mounting cavity 41 is provided between the mounting shell 4 and the insulating base 1; the movable part 3 is arranged inside the mounting cavity 41; and the contact part 2 is connected to one end of the movable part 3 so that the contact part 2 moves toward or away from the mounting cavity 41; one end of the wiring harness body 5 passes through the insulating base 1 and is connected to the contact part 2; and a mounting gap 42 is provided between the contact part 2 and the mounting shell 4; the mounting gap 42 is connected to the mounting cavity 41. In some embodiments, the number of contact parts 2 is two, and they are respectively a positive contact head and a negative contact head. And the number of wiring harness bodies 5, movable parts 3 and mounting shells 4 corresponds to the number of contact parts 2.

[0034] The technical solution of the present invention can promote the convenience and flexibility of contact charging of the contact component through the reciprocating performance of the movable part, and can effectively avoid poor contact between the contact component and the charging contact plate by adding an installation gap between the contact component and the installation shell during the assembly process; thereby effectively avoiding a series of problems such as excessive temperature rise and signal transmission errors caused by unstable current transmission; thereby improving the stability and safety of use.

[0035] Wherein, in some embodiments, Figure 2 As shown, at least one first positioning hole 11 is provided on the insulating base 1; the first positioning hole 11 is arranged through the thickness of the insulating base 1. Further, the number of the first positioning holes 11 is at least three, and they are used for assembly with the AGV vehicle.

[0036] Specifically, in some embodiments, the size L0 of the installation gap 42 satisfies: 1.00mm≤L0≤1.11mm. Among them, L0 can be 1.00mm, 1.03mm, 1.05mm, 1.08mm, 1.11mm, etc. Preferably, it is 1.05mm. This structure increases the size of the installation gap 42 to satisfy 1.00mm≤L0≤1.11mm, so that the contact component 2 can meet the working conditions of ±5° under different inclined rings, thereby improving the stability and safety of use.

[0037] Specifically, in some embodiments, Figure 1 and 2As shown, the installation gap 42 includes a horizontal gap 421 and a longitudinal gap 422; the longitudinal gap 422 is set at both ends of the length direction (X axis) of the contact part 2 (i.e., set at the upper and lower ends); the horizontal gap 421 is set at both ends of the height direction (Z axis) of the contact part 2 (i.e., set at the left and right ends); and the relationship between the size L1 of the horizontal gap 421 and the size L2 of the longitudinal gap 422 satisfies: L1<L2. That is, 1.00mm≤L1<1.11mm, and 1.00mm≤L2<1.11mm, and L1<L2. In other words, by increasing the sizes of the horizontal gap 421 and the longitudinal gap 422 at the same time, and the size of the horizontal gap 421 is slightly smaller (because most of it will tilt to the left and right during the tilting process), the control can adapt to the working environment that can meet ±5° in the vertical direction; thereby improving the stability and safety of use.

[0038] Specifically, in some embodiments, Figure 2 and 3 As shown, the movable component 3 is a pressing spring 31; one end of the pressing spring 31 is connected to the insulating base 1; the other end of the pressing spring 31 passes through the mounting cavity 41 and is connected to the contact component 2. This structure can improve the convenience and flexibility of contact charging of the contact component through the pressing movement and automatic recovery performance of the pressing spring 31.

[0039] Specifically, in some embodiments, Figure 1 and 3 As shown, when the extrusion spring 31 is in a non-extrusion state, the angle α between the vertical plane formed in the vertical direction of the installation cavity 41 and the contact component 2 satisfies: 3.89°≤α≤6.56°. α can be 3.89°, 4.15°, 5.17°, 6.26°, 6.56°, etc. It is preferably 6.26°. When the extrusion spring 31 is in an extrusion state (and extruded to the extreme position), the angle β between the vertical plane formed in the vertical direction of the installation cavity 41 and the contact component 2 satisfies: 1.37°≤β≤5.13°. α can be 1.37°, 4.15°, 5.17°, 5.03°, 5.13°, etc. It is preferably 5.03°. In the natural state, the angles of the left and right sides in the vertical direction increase to 3.89°~6.56°; when combined with the state of being compressed to the bottom, the angles of the left and right sides in the vertical direction increase to 1.37°~5.13°; so that the AGV contacts can meet the working conditions of ±5° in the vertical direction, thereby improving the safety and stability of use.

[0040] Specifically, in some embodiments, Figure 1 and 4As shown, the contact part 2 is provided with an assembly cavity 22 on one side end facing the wiring harness body 5; a first conductive connector 21 is provided in the assembly cavity 22; a second conductive connector 51 is provided on one side end of the wiring harness body 5 facing the contact part 2; the second conductive connector 51 can penetrate the assembly cavity 22 and connect with the first conductive connector 21. The first conductive connector 21 is a metal conductive connector with a U-shaped cross section. This structure can improve the stability and convenience of the assembly and electrical connection between the wiring harness body 5 and the contact part 2, ensure the safety of use, and avoid the interruption of the charging signal.

[0041] Specifically, in some embodiments, Figure 4 and 5 As shown, the second conductive connector 51 includes a limiting section 511 and a clamping section 512 connected to each other; the clamping section 512 is detachably connected to (clamped to) the inner wall of the first conductive connector 21; the outer wall of the limiting section 511 is in close contact with the inner wall of the assembly cavity 22; and the limiting section 511 is connected to the main body of the wiring harness body 5. This structure can ensure the stability and safety of signal transmission of the wiring harness body 5 during the compression, contraction and recovery process of the contact component 2 through the detachable assembly of the clamping section 512 and the reinforced assembly of the limiting section 511.

[0042] Specifically, in some embodiments, Figure 5 As shown, the wiring harness body 5 includes a sleeve 501, a wire 502 and a terminal 503; the sleeve 501 is sleeved on the outer surface of the wire 502; one end of the wire 502 is connected to the second conductive connector 51 (limiting section 511); and the other end of the wire 502 is connected to the terminal 503. In some embodiments, Figure 5 As shown, an assembly gap 513 is provided between one side end of the sleeve 501 facing the limiting section 511 and the limiting section 511. The assembly gap 513 can provide a space for adaptive adjustment of the wire 502 during the extrusion activity of the contact component 2, thereby reducing the deformation speed of the wire 502 and further improving the stability and safety of signal transmission.

[0043] The present invention also provides a charging device, such as Figure 5 and 6As shown, the charging device includes a charging contact and a charging connector 600, wherein the charging connector 600 includes an insulating support 610, a conductive component 620 and a conductive touch plate 630; the conductive touch plate 630 is connected to a side surface (connection groove) of the insulating support 610; the conductive component 620 passes through the insulating support 610 and is connected to the conductive touch plate 630; the conductive touch plate 630 can abut against the contact component. The specific structure of the charging contact refers to the above embodiment. Since the present charging device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0044] Wherein, in some embodiments, Figure 4 and 5 As shown, there are two conductive touch pads 630, which are symmetrically arranged on the insulating support 610; and the insulating support 610 is provided with at least one second positioning hole 611; the second positioning hole 611 is used for assembly with the charging host; the insulating support 610 is also provided with at least one separated heat dissipation groove 612; the separated heat dissipation groove 612 is arranged between the two conductive touch pads 630. This structure can increase the amount of heat dissipation airflow through the concave design of the separated heat dissipation groove 612, thereby improving the heat dissipation efficiency.

[0045] Specifically, in some embodiments, Figure 6 and 7 As shown, the conductive assembly 620 includes a conductive block 621, a screw 622 and a bolt 623; the conductive block 621 is disposed inside the insulating support 610 and abuts against the bottom of the conductive contact plate 630; the screw 622 passes through the conductive contact plate 630 and the conductive block 621, and is threadedly connected to the conductive contact plate 630 and the bolt 623 respectively. Figure 7 As shown, the conductive assembly 620 includes a gasket 624 and a protective cover 625; the gasket 624 is disposed between the bolt 623 and the conductive block 621; the protective cover 625 is sleeved on the bolt 623. Further, the gasket 624 includes a flat gasket and a spring gasket.

[0046] The present invention also provides an AGV vehicle, which includes a vehicle body and a charging device, wherein the charging contact is connected to the vehicle body; and the charging connector is used to be installed on the charging base surface. The specific structure of the charging contact refers to the above embodiment, and the specific structure of the charging device refers to the above embodiment. Since the charging device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0047] Among them, AGV is the abbreviation of Automated Guided Vehicle, which is a charging contact, charging device and unmanned transportation equipment of AGV, with functions such as automatic navigation, handling, positioning and obstacle avoidance. AGV usually adopts laser, vision, electromagnetic and other navigation methods, and can drive autonomously in complex environments to complete various transportation tasks. AGV is widely used in logistics, manufacturing, medical and other fields.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0049] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs can also change and modify the above embodiment. Therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the present invention belongs to the protection scope of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A charging contact, characterized in that: It includes an insulating base, a wiring harness body, a contact component, a movable component and a mounting shell; the mounting shell is connected to the insulating base; a mounting cavity is provided between the mounting shell and the insulating base; the movable component is arranged inside the mounting cavity; and the contact component is connected to one end of the movable component so that the contact component moves toward or away from the mounting cavity; one end of the wiring harness body passes through the insulating base and is connected to the contact component; and a mounting gap is provided between the contact component and the mounting shell; the mounting gap is connected to the mounting cavity.

2. The charging contact according to claim 1, characterized in that: The size L0 of the installation gap satisfies: 1.00mm≤L0≤1.11mm.

3. The charging contact according to claim 1, characterized in that: The movable component is a compression spring; one end of the compression spring is connected to the insulating base; the other end of the compression spring passes through the installation cavity and is connected to the contact component.

4. The charging contact according to claim 3, characterized in that: When the extrusion spring is in a non-extrusion state, an angle α between a vertical plane formed by the vertical direction of the installation cavity and the contact component satisfies: 3.89°≤α≤6.56°; And / or, when the extrusion spring is in an extrusion state, an angle β between a vertical plane formed in the vertical direction of the installation cavity and the contact component satisfies: 1.37°≤β≤5.13°.

5. The charging contact according to claim 1, characterized in that: The contact component is provided with an assembly cavity at one side end facing the wiring harness body; a first conductive connector is provided in the assembly cavity; a second conductive connector is provided at one side end of the wiring harness body facing the contact component; the second conductive connector can penetrate into the assembly cavity and be connected to the first conductive connector.

6. The charging contact according to claim 5, characterized in that: The second conductive connector includes a limiting section and a clamping section connected to each other; the clamping section is detachably connected to the inner wall of the first conductive connector; the outer wall of the limiting section is tightly attached to the inner wall of the assembly cavity; and the limiting section is connected to the main body of the wiring harness.

7. The charging contact according to claim 5 or 6, characterized in that: The wiring harness body comprises a sleeve, a wire and a terminal; the sleeve is sleeved on the outer surface of the wire; one end of the wire is connected to the second conductive connector; and the other end of the wire is connected to the terminal.

8. A charging device, characterized in that: It comprises a charging connector and a charging contact as described in any one of claims 1 to 7, wherein the charging connector comprises an insulating support, a conductive component and a conductive touch plate; the conductive touch plate is connected to one side surface of the insulating support; the conductive component passes through the insulating support and is connected to the conductive touch plate; the conductive touch plate can abut against the contact component.

9. The charging device according to claim 8, characterized in that: The conductive assembly includes a conductive block, a screw and a bolt; the conductive block is arranged inside the insulating support and abuts against the bottom of the conductive touch plate; the screw passes through the conductive touch plate and the conductive block, and is threadedly connected to the conductive touch plate and the bolt respectively.

10. An AGV vehicle, characterized in that: Comprising the charging device according to claim 8 or 9.

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