Electric connection structure of wireless wire passing device

Abstract

The utility model discloses a wireless wire passing device electric connection structure which comprises a front plate assembly installed on a door frame and a rear plate assembly installed on a door body, and the installation position of the front plate assembly corresponds to the installation position of the rear plate assembly. An electric connection assembly for realizing electric connection between the front plate assembly and the rear plate assembly after the door body is closed is arranged between the front plate assembly and the rear plate assembly, the electric connection assembly comprises a contact disc and a contact which is in contact with the contact disc after the door body is closed, and the outer side surface of a convex point of the contact, the outer side surface of the contact and the outer side surface of the contact disc are respectively provided with a pure silver layer or a silver compound layer. And a silver-tin oxide-indium oxide material layer is arranged on the outer side of the contact salient point, so that the problem of oxidation of a conductive contact position between the contact and the contact disc under the action of long-time voltage change is solved.

Description

[Technical field]

[0001] The utility model relates to an electrical connection structure of a wireless wire passing device. [Background Technology]

[0002] The existing touch-type wireless wire passers for doors generally have a contact plate on the door frame and a striker on the door leaf to achieve circuit connection when the door is closed. However, due to production process problems, there is a problem that there will be a gap between the striker and the contact plate when the door is closed after installation, and there will be no contact and conduction; at the same time, the conductive contact position between the striker and the contact plate will oxidize under the action of long-term voltage changes, resulting in the problem that the striker and the contact plate are not conductive even after the door is closed; on the other hand, the outer side of the striker and the outer side of the contact plate are exposed to the air, and they are prone to oxidation after long-term use, which will damage the striker and the contact plate, and also affect the conductive effect between the striker, the contact plate and the circuit board. [Contents of the utility model]

[0003] The utility model overcomes the shortcomings of the prior art and provides an electrical connection structure of a wireless wire passer.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wireless wire passer electrical connection structure, characterized in that: it includes a front plate assembly installed on a door frame and a rear plate assembly installed on a door body, the installation positions of the front plate assembly and the rear plate assembly correspond to each other, and an electrical connection assembly is provided between the front plate assembly and the rear plate assembly for realizing electrical connection between the front plate assembly and the rear plate assembly after the door body is closed, the electrical connection assembly includes a contact plate and a contact that contacts the contact plate after the door body is closed, and the outer side surface of the contact protrusion, the outer side surface of the contact, and the outer side surface of the contact plate are respectively provided with a pure silver layer or a silver compound layer.

[0006] The electrical connection structure of a wireless wire passer as described above is characterized in that the silver compound is silver nickel, silver cadmium oxide, silver tin oxide, silver zinc oxide, silver copper or silver tin oxide indium oxide.

[0007] The electrical connection structure of a wireless wire passer as described above is characterized in that a silver tin oxide indium oxide layer is provided on the outer side of the contact protrusion, and a pure silver layer is provided on the outer side of the contact and the outer side of the contact plate.

[0008] The electrical connection structure of a wireless wire passer as described above is characterized in that the contact plate and the contact are respectively arranged on the front plate assembly and the rear plate assembly.

[0009] The electrical connection structure of a wireless wire passer as described above is characterized in that: the contact is arranged in the rear plate assembly, the contact can move in the rear plate assembly and the contact end of the contact extends out of the rear plate assembly, and a spring assembly is arranged in the rear plate assembly between the contact and the rear plate assembly.

[0010] The electrical connection structure of a wireless wire passer as described above is characterized in that: the rear plate assembly includes a rear mounting panel, a rear shell body arranged on the rear side of the rear mounting panel, and a detachable rear cover plate covering the other end of the rear shell body, a rear plate circuit board is arranged in the rear shell body, the contact extends out of the rear mounting panel through a through hole arranged on the rear mounting panel, one end of the spring assembly abuts against the end of the contact, and the other end of the spring assembly conductively abuts against the rear plate circuit board.

[0011] The electrical connection structure of a wireless wire passer as described above is characterized in that an annular step is provided on the outer side of the contact end, and a limiting piece is provided on the rear shell body to cooperate with the annular step to limit the extension length of the contact.

[0012] The electrical connection structure of a wireless wire passer as described above is characterized in that a contact groove is provided on the end surface of the contact terminal, and one end of the spring assembly is arranged in the contact groove.

[0013] The electrical connection structure of a wireless wire passer as described above is characterized in that: the front panel assembly includes a front mounting panel, a front shell arranged on the rear side of the front mounting panel, and a detachable front cover plate covering the other end of the front shell, the touch plate is arranged on the front side surface of the front mounting panel, a front panel circuit board is arranged in the front shell, and the touch plate and the front panel circuit board are electrically connected through a wire.

[0014] The electrical connection structure of a wireless wire passer as described above is characterized in that a touch plate positioning plate is provided on the front side of the front mounting panel, a plurality of positioning plate recesses are provided on the touch plate positioning plate, and the touch plate is arranged in the positioning plate recesses.

[0015] The beneficial effects of the utility model are:

[0016] The utility model arranges a contact protrusion on the contact end of the contact, and after installation, the contact protrusion ensures that the contact and the contact disc are electrically connected through the contact protrusion in a closed state, and at the same time, a silver-tin oxide-indium oxide material layer is arranged on the outer side of the contact protrusion, thereby improving the oxidation problem of the conductive contact position between the contact and the contact disc under the action of long-term voltage changes, and silver material layers are respectively arranged on the outer side of the contact and the outer side of the contact disc, thereby reducing the oxidation influence of the outer side surface, and ensuring a good conductive connection effect between the contact and the contact disc under long-term use. [Drawings]

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is one of the exploded views of the rear panel assembly of the utility model;

[0019] Figure 3 This is the second exploded view of the rear panel assembly of the present utility model;

[0020] Figure 4 This is a schematic diagram of the front panel assembly of the utility model;

[0021] Figure 5 This is an exploded view of the front half of the utility model. [Specific implementation method]

[0022] The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention 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 defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one of the features.

[0024] like Figure 1-5 As shown, an electrical connection structure of a wireless wire passer includes a front panel assembly 1 installed on a door frame and a rear panel assembly 2 installed on a door body, the installation positions of the front panel assembly 1 and the rear panel assembly 2 correspond, and an electrical connection assembly is provided between the front panel assembly 1 and the rear panel assembly 2 for realizing electrical connection between the front panel assembly 1 and the rear panel assembly 2 after the door body is closed, the electrical connection assembly includes a contact plate 3 and a contact 4 which contacts the contact plate 3 after the door body is closed, a contact bump 41 is provided on the contact end of the contact 4, and the outer side surfaces of the contact bump 41, the outer side surfaces of the contact 4 and the outer side surfaces of the contact plate 3 are respectively provided with a pure silver layer or a silver compound layer.

[0025] In this case, a silver-tin-oxide-indium-oxide layer is provided on the outer side of the contact protrusion 41, and a pure silver layer is provided on the outer side of the contact 4 and the outer side of the contact plate 3. In actual use, when the door body is closed on the door frame, the front plate assembly 1 and the rear plate assembly 2 respectively arranged on the door frame and the door body are arranged relative to each other, and the contact plate 3 and the contact 4 respectively arranged on the front plate assembly 1 and the rear plate assembly 2 to form an electrical connection assembly are in contact with each other and electrically connected. By setting the contact protrusion 41, it is ensured that the contact 3 and the contact plate 4 are in contact and electrically connected in the closed state. At the same time, a silver-tin-oxide-indium-oxide layer is provided on the outer side of the contact protrusion 41, which reduces the oxidation effect of the conductive contact position between the contact and the contact plate under the action of long-term voltage changes, and a pure silver layer is provided on the outer side of the contact and the outer side of the contact plate respectively, which reduces the oxidation effect of the outer side, and ensures a good conductive connection effect between the contact and the contact plate under long-term use.

[0026] On the other hand, the silver compound covering the outer side surface of the contact bump 41, the outer side surface of the contact 4, and the outer side surface of the contact pad 3 is silver nickel, silver cadmium oxide, silver tin oxide, silver zinc oxide, silver copper, or silver tin oxide indium oxide.

[0027] Among the above materials, pure silver and crystalline silver have high electrical conductivity and thermal conductivity, low and stable contact resistance, and good welding and processing performance. Crystallized silver has a small amount of nickel added to silver, which greatly refines the material structure grains. Under the condition of almost the same contact resistance, its mechanical strength and temperature resistance are higher than silver. At the same time, it has the highest electrical conductivity and thermal conductivity, and has a very low contact resistance, and is easy to process and weld.

[0028] Silver nickel has good electrical and thermal conductivity, low and stable contact resistance, small and uniform electrical erosion, and less planar material migration under DC conditions. The material increases contact resistance due to the formation of oxides when it is switched on and off, is sensitive to sulfur, and has poor resistance to welding under high current.

[0029] Silver cadmium oxide has good resistance to electrical wear, welding, and electrical and thermal conductivity, and has a small and stable contact resistance. Since cadmium oxide is distributed in a dispersed phase, it can increase the hardness of the material and improve resistance to mechanical wear. Silver cadmium oxide electrical contacts have strong resistance to welding when short-circuit current passes through them.

[0030] Silver tin oxide, compared with silver cadmium oxide, does not contain toxic metal cadmium. The metal oxide in it has high thermal stability and good electrical and thermal conductivity. It has high heat resistance, arc erosion resistance and welding resistance during the switching process, thereby ensuring the reliability of electrical operation and improving service life.

[0031] Compared with silver cadmium oxide, silver zinc oxide does not contain toxic metal cadmium and will not pollute the environment. The metal oxide in it has high thermal stability and good electrical and thermal conductivity. It has high heat resistance, arc erosion resistance and welding resistance during the switching process, thereby ensuring the reliability of electrical operation and improving service life.

[0032] Silver copper has good electrical conductivity and is not easy to oxidize on the surface. When copper (3-30%) is added, the burning resistance of silver can be significantly improved. Therefore, the contact material doped with copper can be used for currents up to 16A. The addition of copper, especially when the copper content is high (such as 10%), can reduce the material transfer phenomenon under DC working conditions.

[0033] Silver tin oxide indium oxide (AgSnO2ln203) is currently the most commercially valuable alternative to silver cadmium oxide (AgCdO). Because it has better stability and higher hardness than silver cadmium oxide, it has better resistance to welding and burning. In particular, the needle-shaped oxides precipitated during the internal oxidation process are oriented perpendicular to the contact surface, which is very beneficial to the performance of the contact and has better resistance to DC metal processes.

[0034] like Figure 1-5 As shown, in this case, the contact plate 3 and the contact 4 are respectively arranged on the front plate assembly 1 and the rear plate assembly 2; similarly, the contact plate 3 and the contact 4 can also be respectively arranged on the rear plate assembly 2 and the front plate assembly 1.

[0035] like Figure 1-3 As shown, the contact 4 is arranged in the rear plate assembly 2, the contact 4 can move in the rear plate assembly 2 and the contact end of the contact 4 extends out of the rear plate assembly 2, and a spring assembly 5 is arranged in the rear plate assembly 2 between the contact 4 and the rear plate assembly 2. In the process of closing the door, after the contact 4 contacts the contact disc 3, the contact 4 presses on the contact disc 4, and then the contact 4 is gradually pressed by the contact disc to move to the inside of the rear plate assembly 2 and compress the spring assembly 5, so as to ensure that the contact 4 contacts the contact disc 4 to realize electrical connection.

[0036] like Figure 1-3 As shown, the rear panel assembly 2 includes a rear mounting panel 21, a rear housing 24 disposed at the rear side of the rear mounting panel 21, and a detachable rear cover 25 covering the other end of the rear housing 24. A rear panel circuit board 22 is disposed in the rear housing 24. The contact 4 extends out of the rear mounting panel 21 through a through hole 23 disposed on the rear mounting panel 21. One end of the spring assembly 5 abuts against the end of the contact 4, and the other end of the spring assembly 5 abuts against the rear panel circuit board 22 in an electrically conductive manner. In the rear panel assembly 2, the spring assembly 5 enables electrical connection between the contact 4 and the rear panel circuit board 22.

[0037] like Figure 2-3 As shown, an annular step 42 is provided on the outer side surface of the end of the contact 4, and a limiting member 26 is provided on the rear housing 24 to cooperate with the annular step 42 to limit the extension length of the contact 4. The limiting member 26 limits the maximum length of the contact 4 after it extends out of the through hole 23 and is installed on the panel 21, and the contact 4 is confined in the through hole 23 to prevent the contact 4 from escaping from the through hole 23; a contact groove 43 is provided on the end surface of the end of the contact 4, and one end of the spring assembly 5 is arranged in the contact groove 43 to confine the spring assembly 5 in the contact 4 to prevent the spring assembly 5 from shifting during movement.

[0038] like Figure 4-5 As shown, the front panel assembly 1 includes a front mounting panel 11, a front housing 13 disposed at the rear side of the front mounting panel 11, and a detachable front cover 14 covering the other end of the front housing 13. The touch plate 3 is disposed on the front side of the front mounting panel 11. A front panel circuit board is disposed in the front housing 13. The touch plate 3 and the front panel circuit board are electrically connected via a wire. A touch plate positioning plate 12 is disposed on the front side of the front mounting panel 11. A plurality of positioning plate recesses 121 are disposed on the touch plate positioning plate 12. The touch plate 3 is disposed in the positioning plate recesses 121. By providing the touch plate positioning plate 12 and the positioning plate recesses 121 on the touch plate positioning plate 12, it is convenient to position and install the touch plate 3 and to facilitate the contact 4 to achieve electrical contact and connection with the touch plate 3 during the door closing process.

[0039] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wireless wire-passing device electrical connection structure, characterized in that: The invention comprises a front panel assembly (1) mounted on a door frame and a rear panel assembly (2) mounted on a door body, wherein the mounting positions of the front panel assembly (1) and the rear panel assembly (2) correspond to each other, and an electrical connection assembly is arranged between the front panel assembly (1) and the rear panel assembly (2) for realizing electrical connection between the front panel assembly (1) and the rear panel assembly (2) after the door body is closed, wherein the electrical connection assembly comprises a contact plate (3) and a contact (4) contacting the contact plate (3) after the door body is closed, wherein a contact protrusion (41) is arranged on the contact end of the contact (4), and a pure silver layer or a silver compound layer is arranged on the outer side surface of the contact protrusion (41), the outer side surface of the contact (4), and the outer side surface of the contact plate (3), respectively.

2. The wireless wire-passing device electrical connection structure according to claim 1, characterized in that: The silver compound is silver nickel, silver cadmium oxide, silver tin oxide, silver zinc oxide, silver copper or silver tin oxide indium oxide.

3. The wireless wire-passing device electrical connection structure according to claim 1, characterized in that: The outer side surface of the contact protrusion (41) is provided with a silver oxide, tin oxide and indium oxide layer, and the outer side surface of the contact (4) and the outer side surface of the contact plate (3) are respectively provided with a pure silver layer.

4. The wireless wire-passing device electrical connection structure according to claim 1, characterized in that: The contact plate (3) and the contact head (4) are respectively arranged on the front plate assembly (1) and the rear plate assembly (2).

5. The wireless wire-passing device electrical connection structure according to claim 4, characterized in that: The contact (4) is arranged in the rear plate assembly (2), the contact (4) can move in the rear plate assembly (2) and the contact end of the contact (4) extends out of the rear plate assembly (2), and a spring assembly (5) is arranged in the rear plate assembly (2) between the contact (4) and the rear plate assembly (2).

6. The wireless wire-passing device electrical connection structure according to claim 5, characterized in that: The rear panel assembly (2) comprises a rear mounting panel (21), a rear shell (24) arranged on the rear side of the rear mounting panel (21), and a detachable rear cover (25) covering the other end of the rear shell (24); a rear panel circuit board (22) is arranged in the rear shell (24); the contact (4) extends out of the rear mounting panel (21) through a through hole (23) arranged on the rear mounting panel (21); one end of the spring assembly (5) abuts against the end of the contact (4), and the other end of the spring assembly (5) abuts against the rear panel circuit board (22) in an electrically conductive manner.

7. The wireless wire-passing device electrical connection structure according to claim 6, characterized in that: An annular step (42) is provided on the outer side of the end of the contact (4), and a limiting piece (26) is provided on the rear housing (24) for cooperating with the annular step (42) to limit the extension length of the contact (4).

8. The wireless wire-passing device electrical connection structure according to claim 6, characterized in that: A contact groove (43) is provided on the end surface of the contact (4), and one end of the spring assembly (5) is arranged in the contact groove (43).

9. The wireless wire-passing device electrical connection structure according to claim 4, characterized in that: The front panel assembly (1) comprises a front mounting panel (11), a front housing (13) arranged at the rear side of the front mounting panel (11), and a detachable front cover (14) covering the other end of the front housing (13); the touch pad (3) is arranged on the front side of the front mounting panel (11); a front panel circuit board is arranged in the front housing (13); and the touch pad (3) and the front panel circuit board are electrically connected via a wire.

10. The wireless wire-passing device electrical connection structure according to claim 9, characterized in that: A touch plate positioning plate (12) is provided on the front side of the front installation panel (11), a plurality of positioning plate recesses (121) are provided on the touch plate positioning plate (12), and the touch plate (3) is arranged in the positioning plate recesses (121).

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