Electric contact structure and air purification device

Abstract

The electric contact structure and air purification device provided by the present invention include: a carrier plate including a limiter, on which a plurality of first conductive sheets are arranged, and the first conductive sheets are suitable for being electrically connected to the power supply electrodes; a purification module, one end of which is provided with a connecting plate, on which a plurality of contact structures corresponding to the first conductive sheets are arranged, the contact structure is provided with an elastic member built in, and is connected to the electrodes inside the purification module, and the connecting plate has a working state in which the contact structure abuts and connects with the first conductive sheet under the action of the limiter. Through the connection and limit of the connecting plate and the carrier plate on the purification module, and the corresponding arrangement of the contact structure and the first conductive sheet, effective connection between the contact structure and the first conductive sheet can be achieved. In addition, since the contact structure is provided with an elastic member built in, it can ensure that the contact structure and the first conductive sheet remain in abutment, avoiding the problem of poor contact of the contact structure due to wear or deformation, thereby improving the working stability and user experience of the ionization purification module.

Description

Technical Field

[0001] The present invention relates to the technical field of electric contact connection, and in particular to an electric contact structure and an air purification device. Background Art

[0002] As people's living standards continue to improve, the requirements for air quality are becoming more stringent. In daily life, the popularity of electric air purification equipment with sterilization and disinfection functions is getting higher and higher. As an easy-to-install air purification equipment, the ionization purification module has the characteristics of less consumables and high sterilization rate. It is widely used in public transportation such as buses, high-speed railways, subways, airplanes and other places. However, the purification module needs to be taken out and cleaned regularly during use.

[0003] However, the prior art uses a socket plug or connector as the connection method, which requires the user to plug and unplug the socket plug or connector during the cleaning process. Since structures such as the conductive pins are prone to wear or deformation, the module may have problems such as poor contact, thereby reducing the working stability of the ionization purification module and the user experience. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor stability of the electric contact structure of the electric purification module in the prior art, thereby providing an electric contact structure and an air purification device.

[0005] The present invention provides an electric contact structure, comprising: a carrier plate, comprising a stopper, on which a plurality of first conductive sheets are arranged, wherein the first conductive sheets are suitable for being electrically connected to power supply electrodes;

[0006] The purification module has a connecting plate at one end, on which a plurality of contact structures corresponding to the first conductive sheet are arranged, wherein the contact structure has an elastic member built in and is connected to the electrode inside the purification module, and the connecting plate has a working state in which the contact structure abuts and is connected to the first conductive sheet under the action of the limiting member.

[0007] The contact structure comprises: a receiving groove, which is arranged on the connecting plate, the opening of which is arranged facing away from the purification module, and an annular protrusion is arranged along the edge of the opening;

[0008] A snap-fit ​​structure is arranged in the receiving groove and protrudes along the opening direction of the receiving groove. The snap-fit ​​structure is respectively provided with a first abutting structure and a second abutting structure protruding in the circumferential direction in the height direction. The first abutting structure is arranged in the receiving groove, and the second abutting structure is arranged outside the receiving groove. A second conductive sheet is arranged at the end of the snap-fit ​​structure facing away from the receiving groove, and the second conductive sheet extends to the receiving groove and is suitable for connecting the working electrode of the purification module;

[0009] The elastic member is respectively in contact with the receiving groove and the buckle structure.

[0010] An abutment groove is arranged inside the accommodating groove, a limiting groove is arranged inside the buckle structure, and an opening of the abutment groove and an opening of the limiting groove are arranged opposite to each other and are suitable for accommodating the elastic member.

[0011] The buckle structure comprises: an abutment portion, which is protruded away from the receiving groove, has a receiving hole in the middle, and the second abutment structure is arranged along the circumference;

[0012] A plurality of extension parts are in sheet form, fixedly connected to the abutment part and extending toward the accommodating groove. The first abutment structure is arranged on the peripheral side of one end of the extension part facing away from the abutment part.

[0013] The second conductive sheet includes: a contact sheet, which is arranged on a side of the abutting portion facing away from the receiving groove;

[0014] The limiting pieces are arranged at two ends of the contact piece along the length direction and extend along the accommodating hole to the inside of the accommodating groove. The limiting pieces are provided with elastic limiting protrusions.

[0015] The limiting pieces arranged along the two ends of the contact piece have different extension lengths, and a connecting hole is arranged on the limiting piece at the end with the longer extension length.

[0016] A ventilation hole is arranged in the receiving groove, and the ventilation hole is arranged on the peripheral side of the abutting groove, which is suitable for balancing the pressure inside and outside the receiving groove.

[0017] The limiting member is a limiting slide groove, which is provided at the edge of the bearing plate and is suitable for accommodating the connecting plate.

[0018] The present invention also provides an air purification device, comprising the above-mentioned electric contact structure.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The electric contact structure provided by the present invention includes: a supporting plate, including a limiting member, on which a plurality of first conductive sheets are arranged, and the first conductive sheets are suitable for being electrically connected to power supply electrodes; a purification module, one end of which is provided with a connecting plate, and the connecting plate is provided with a plurality of contact structures corresponding to the first conductive sheets, the contact structure has an elastic member built in, and is connected to the electrode inside the purification module, and the connecting plate has a working state in which the contact structure abuts and is connected to the first conductive sheet under the action of the limiting member.

[0021] By connecting and limiting the connecting plate and the supporting plate on the purification module, and correspondingly setting the contact structure and the first conductive sheet, effective connection between the contact structure and the first conductive sheet can be achieved. In addition, since the contact structure has built-in elastic parts, the contact structure and the first conductive sheet can be kept in contact, thereby avoiding poor contact of the contact structure due to wear or deformation, thereby improving the working stability and user experience of the ionization purification module.

[0022] 2. The electric contact structure provided by the present invention comprises a contact structure including: a receiving groove, which is arranged on the connecting plate, the opening of which is arranged facing away from the purification module, and an annular protrusion is arranged along the edge of the opening; a snap-fit ​​structure, which is arranged in the receiving groove and protrudes along the opening direction of the receiving groove, and the snap-fit ​​structure is respectively provided with a first abutment structure and a second abutment structure protruding along the circumferential direction along the height direction, the first abutment structure is arranged in the receiving groove, and the second abutment structure is arranged on the outside of the receiving groove, and a second conductive sheet is arranged at the end of the snap-fit ​​structure facing away from the receiving groove, the second conductive sheet extends to the receiving groove, and is suitable for connecting the working electrode of the purification module; an elastic member, which abuts against the receiving groove and the snap-fit ​​structure, respectively.

[0023] An annular protrusion is provided on the opening edge of the accommodating groove, and the snap-fit ​​structure is provided with a first abutment structure and a second abutment structure protruding in the circumferential direction along the height direction. The snap-fit ​​structure can be snapped into the accommodating groove and the displacement range of the snap-fit ​​structure is guaranteed. On the one hand, the snap-fit ​​structure is avoided from being disengaged, and on the other hand, it is also avoided from exceeding the elastic limit of the elastic part, thereby ensuring the effective effect of the elastic part and enhancing the working stability of the electric contact structure.

[0024] 3. In the electric contact structure provided by the present invention, the limiting pieces arranged along the two ends of the contact piece have different extension lengths, and a connecting hole is arranged on the limiting piece at the end with the longer extension length.

[0025] The limiting pieces at both ends of the contact piece are controlled to extend to different lengths, and a connecting hole is provided on the longer end. By providing the connecting hole, it is convenient to connect the working electrode of the purification module.

[0026] 4. In the electric contact structure provided by the present invention, ventilation holes are arranged in the receiving groove, and the ventilation holes are arranged on the peripheral side of the abutting groove, suitable for balancing the pressure inside and outside the receiving groove.

[0027] By setting up ventilation holes, the pressure in the receiving groove can be balanced. Since part of the snap-fit ​​structure is accommodated in the receiving groove, and the first abutting structure is extended in the receiving groove and is limited by the annular protrusion, after the snap-fit ​​structure contacts the first conductive sheet and receives the resistance brought by the abutment, the snap-fit ​​structure moves into the receiving groove. During this process, the gas in the receiving groove will be compressed, increasing the resistance of the snap-fit ​​structure to enter. After the purification module is separated from the supporting plate, the snap-fit ​​structure moves back to the receiving groove, stretching the gas in the receiving groove and increasing the resistance of the snap-fit ​​structure to leave. Setting up ventilation holes can balance the internal and external pressures only by setting up elastic parts, and there is no requirement for the sealing of the receiving groove, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of an electric contact structure provided in an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic structural diagram of a purification module in the electric contact structure shown;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure of a carrier plate in the electric contact structure shown;

[0032] Figure 4 for Figure 3 The structural explosion diagram of the connecting plate in the electric contact structure shown;

[0033] Figure 5 for Figure 4 A schematic structural diagram of the buckle structure of the connecting plate shown;

[0034] Figure 6 for Figure 2 A schematic diagram of the internal structure of the contact structure in the electric contact structure shown;

[0035] Description of reference numerals:

[0036] 1-carrying plate; 11-limiting member; 12-first conductive sheet; 2-purification module; 3-connecting plate; 4-contact structure; 41-accommodating groove; 42-clamping structure; 43-elastic member; 411-annular protrusion; 412-abutting groove; 421-first abutting structure; 422-second abutting structure; 423-limiting groove; 424-abutting portion; 425-accommodating hole; 426-extension portion; 427-second conductive sheet; 428-contact sheet; 429-limiting sheet; 44-ventilation hole. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 - Figure 6 As shown, this embodiment provides an electric contact structure, including a carrier plate 1 and a purification module 2.

[0042] The carrier board 1 includes a stopper 11 on which a plurality of first conductive sheets 12 are arranged. The first conductive sheets 12 can be electrically connected to the power supply electrodes. In this embodiment, a PCB board bracket is arranged on the PCB board to expose a plurality of conductive areas and power-on areas. The conductive area is the area where the first conductive sheets 12 are located, and the power-on area is Figure 3 The area shown at the lower right where the power is connected.

[0043] The purification module 2 is provided with a connecting plate 3 at the bottom end, and two contact structures 4 corresponding to the first conductive sheet 12 are provided on the connecting plate 3. The contact structure 4 has an elastic member 43 built in and is connected to the electrode inside the purification module 2. The connecting plate 3 has a working state in which the contact structure 4 abuts and is connected to the first conductive sheet 12 under the action of the limit member 11.

[0044] By connecting and limiting the connecting plate 3 and the supporting plate 1 on the purification module 2, and correspondingly setting the contact structure 4 and the first conductive sheet 12, effective connection between the contact structure 4 and the first conductive sheet 12 can be achieved. In addition, since the contact structure 4 has an elastic member 43 built in, it can ensure that the contact structure 4 and the first conductive sheet 12 remain in contact, avoiding poor contact of the contact structure 4 due to wear or deformation, thereby improving the working stability and user experience of the ionization purification module 2.

[0045] The contact structure 4 includes a receiving groove 41, a buckle structure 42, and an elastic member 43. In this embodiment, the elastic member 43 is a spring. As a convertible implementation, the elastic member 43 can be an elastic rubber member or a closed air chamber.

[0046] The receiving groove 41 is arranged on the connecting plate 3, and the opening is arranged to face away from the purification module 2, and an annular protrusion 411 is arranged along the edge of the opening; the snap structure 42 is partially arranged in the receiving groove 41 and protrudes along the opening direction of the receiving groove 41, and the snap structure 42 is respectively provided with a first abutment structure 421 and a second abutment structure 422 protruding along the circumferential direction along the height direction, the first abutment structure 421 is arranged in the receiving groove 41, and the second abutment structure 422 is arranged on the outside of the receiving groove 41, and a second conductive sheet 427 is arranged at the end of the snap structure 42 facing away from the receiving groove 41, and the second conductive sheet 427 extends to the receiving groove 41, and can be connected to the working electrode of the purification module 2; the elastic member 43 abuts against the receiving groove 41 and the snap structure 42, respectively.

[0047] An annular protrusion 411 is provided on the opening edge of the accommodating groove 41, and the snap-fit ​​structure 42 is provided with a first abutment structure 421 and a second abutment structure 422 protruding in the circumferential direction along the height direction. The snap-fit ​​structure 42 can be snapped into the accommodating groove 41 and the displacement range of the snap-fit ​​structure 42 is guaranteed. On the one hand, the snap-fit ​​structure 42 is avoided from being disengaged, and on the other hand, it is also avoided from exceeding the elastic limit of the elastic member 43, thereby ensuring the effective effect of the elastic member 43 and enhancing the working stability of the electric contact structure.

[0048] An abutting groove 412 is disposed inside the accommodating groove 41 , and a limiting groove 423 is disposed inside the buckle structure 42 . The opening of the abutting groove 412 and the opening of the limiting groove 423 are disposed opposite to each other and are suitable for accommodating the elastic member 43 .

[0049] The buckle structure 42 includes an abutting portion 424 , a plurality of extending portions 426 , and a plurality of reinforcing portions.

[0050] The abutment portion 424 is arranged in a square platform shape and protrudes away from the receiving groove 41. Two parallel receiving holes 425 are arranged in the middle. A second abutment structure 422 protruding in an annular manner is arranged circumferentially at a position adjacent to the extension portion 426. Two extension portions 426 are sheet-shaped, fixedly connected to the abutment portion 424 and arranged vertically. The two extension portions 426 are arranged opposite to each other and extend toward the inside of the receiving groove 41. One end of the extension portion 426 facing away from the abutment portion 424 is vertically protruded with a first abutment structure 421. In this embodiment, the protruding first abutment structure 421 is arranged on the side of the extension portion 426 facing away from the other extension portion 426 arranged opposite to each other. Two reinforcing portions are arranged adjacent to the extension portion 426 and are provided with a plurality of reinforcing ribs. As a convertible embodiment, the reinforcing portion may not be provided.

[0051] The second conductive sheet 427 includes a contact sheet 428 and a limiting sheet 429 .

[0052] The contact piece 428 is arranged on the side of the abutment portion 424 facing away from the receiving groove 41; the limiting pieces 429 are arranged at both ends of the contact piece 428 along the length direction and extend along the receiving hole 425 to the inside of the receiving groove 41, and an elastic limiting protrusion is arranged on the limiting piece 429. In this embodiment, the connection position of the contact piece 428 and the limiting piece 429 is rounded to facilitate the sliding limiting of the connecting plate 3 on the bearing plate 1. In addition, the elastic limiting protrusion is integrally formed with the limiting piece 429.

[0053] The limiting pieces 429 arranged at both ends of the contact piece 428 have different extension lengths, and a connection hole is arranged on the limiting piece 429 at the end with the longer extension length. The limiting pieces 429 at both ends of the contact piece 428 are controlled to extend to different lengths, and a connection hole is arranged on the longer end. By setting the connection hole, it is convenient to connect the working electrode of the purification module 2.

[0054] As a variable implementation, the connection hole may not be provided, and instead, connection grooves may be provided on both sides of the extension direction of any limiting piece 429, or a detachable snap-fit ​​fixing structure with an electrode, such as a buckle or a hook, may be provided on the limiting piece 429, which is also convenient for connecting the working electrode of the purification module 2. As another variable implementation, the extension lengths of the limiting pieces 429 at both ends of the contact piece 428 may be the same.

[0055] A vent hole 44 is provided in the receiving groove 41, and the vent hole 44 is provided around the abutting groove 412, and is suitable for balancing the pressure inside and outside the receiving groove 41. The pressure inside the receiving groove 41 can be balanced by providing the vent hole 44. Since part of the buckle structure 42 is contained in the receiving groove 41, and the first abutting structure 421 is extended in the receiving groove 41 and limited by the annular protrusion 411, after the buckle structure 42 contacts the first conductive sheet 12 and receives the resistance brought by the abutment, the buckle structure 42 moves into the receiving groove 41. In this process, the gas in the receiving groove 41 is compressed, and the resistance of the buckle structure 42 entering is increased. After the purification module 2 is separated from the carrier plate 1, the buckle structure 42 moves back to the receiving groove 41, and the gas in the receiving groove 41 is stretched, and the resistance of the buckle structure 42 leaving is increased. The vent hole 44 can balance the pressure inside and outside. Only by providing the elastic member 43, there is no requirement for the sealing of the receiving groove 41, which improves the applicability.

[0056] As a convertible embodiment, the ventilation hole 44 may not be provided, and the elastic member 43 may not be provided in the contact structure 4. The snap structure 42 is only provided with an abutment portion 424 and a ring-shaped extension portion 426. The first abutment structure 421 on the extension portion 426 is an elastic sealing structure, and abuts against the inner wall of the accommodating groove 41. The accommodating hole 425 on the snap structure 42 is sealed with the second conductive sheet 427. In this way, the airtightness in the accommodating groove 41 is used to ensure that the snap structure 42 can move up and down in the accommodating groove 41.

[0057] In this embodiment, the limiting member 11 is a limiting sliding groove, which is provided at the edge of the carrier plate 1 and can accommodate the connecting plate 3. As a convertible implementation, the limiting member 11 can also be a limiting slot, which is provided inside the carrier plate 1 and can be engaged with the protrusion provided on the bottom side of the connecting plate 3; as another convertible implementation, the limiting member 11 can also be a magnetic connector with protrusions and depressions, which is provided on the carrier plate 1 and the connecting plate 3, and the limiting is achieved by magnetic force and the matching of the concave and convex.

[0058] This embodiment also provides an air purification device, including the above-mentioned electric contact structure. The air purification device can be an electrostatic electret filter type, a high-voltage electrostatic dust collection type, a negative ion and plasma purification type, and other different air purifiers.

[0059] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. An electric contact structure, characterized in that: include: A carrier plate (1) comprises a stopper (11) on which a plurality of first conductive sheets (12) are arranged, wherein the first conductive sheets (12) are suitable for being electrically connected to power supply electrodes; A purification module (2) is provided with a connecting plate (3) at one end, the connecting plate (3) is provided with a plurality of contact structures (4) corresponding to the first conductive sheet (12), the contact structure (4) has an elastic member (43) built in, and is connected to an electrode inside the purification module (2), and the connecting plate (3) has a working state in which the contact structure (4) abuts against and is connected to the first conductive sheet (12) under the action of the limiting member (11); The contact structure (4) comprises: A receiving groove (41) is arranged on the connecting plate (3), the opening of which is arranged facing away from the purification module (2), and an annular protrusion (411) is arranged along the edge of the opening; A snap-fit ​​structure (42) is arranged in the receiving groove (41) and is protruded along the opening direction of the receiving groove (41); the snap-fit ​​structure (42) is respectively provided with a first abutting structure (421) and a second abutting structure (422) protruding in the circumferential direction in the height direction; the first abutting structure (421) is arranged in the receiving groove (41); the second abutting structure (422) is arranged outside the receiving groove (41); a second conductive sheet (427) is arranged at the end of the snap-fit ​​structure (42) facing away from the receiving groove (41); the second conductive sheet (427) extends to the receiving groove (41) and is suitable for connecting to the working electrode of the purification module (2); The elastic member (43) is respectively in contact with the accommodating groove (41) and the buckle structure (42).

2. The electric contact structure according to claim 1, characterized in that: The accommodating groove (41) is provided with an abutting groove (412) inside, and the buckle structure (42) is provided with a limiting groove (423) inside. The opening of the abutting groove (412) and the opening of the limiting groove (423) are arranged opposite to each other and are suitable for accommodating the elastic member (43).

3. The electric contact structure according to claim 2, characterized in that: The buckle structure (42) comprises: An abutment portion (424) is protrudingly arranged away from the accommodation groove (41), a receiving hole (425) is arranged in the middle, and the second abutment structure (422) is arranged along the circumference; A plurality of extension portions (426) are sheet-shaped, fixedly connected to the abutment portion (424), and extend toward the accommodating groove (41); the first abutment structure (421) is provided on the peripheral side of one end of the extension portion (426) facing away from the abutment portion (424).

4. The electric contact structure according to claim 3, characterized in that: The second conductive sheet (427) comprises: A contact sheet (428) is arranged on a side of the abutting portion (424) facing away from the receiving groove (41); The limiting pieces (429) are arranged at both ends of the contact piece (428) along the length direction and extend along the accommodating hole (425) to the inside of the accommodating groove (41); and the limiting pieces (429) are provided with elastic limiting protrusions.

5. The electric contact structure according to claim 4, characterized in that: The limiting pieces (429) arranged along the two ends of the contact piece (428) have different extension lengths, and a connection hole is arranged on the limiting piece (429) at the end with the longer extension length.

6. The electric contact structure according to claim 4, characterized in that: A ventilation hole (44) is arranged in the containing groove (41), and the ventilation hole (44) is arranged on the peripheral side of the abutting groove (412) and is suitable for balancing the internal and external pressures of the containing groove (41).

7. The electric contact structure according to claim 1, characterized in that: The limiting member (11) is a limiting sliding groove, which is arranged on the edge of the bearing plate (1) and is suitable for accommodating the connecting plate (3).

8. An air purification device, characterized in that: It comprises the electric contact structure as described in any one of claims 1 to 7.

Images