Switching device

Abstract

The switching device provided by the utility model comprises a switching circuit board, the top surface of the switching circuit board is provided with a connector, the connector is electrically connected with the switching circuit board, and the surface of one end of the switching circuit board is provided with a golden finger; the connector is used for plugging the optical module; a fixed cavity is formed in the adapter cavity; one end of the switching circuit board is located in the fixing cavity, and the switching circuit board is fixedly connected with the switching cavity; the switching cavity is used for assembling and connecting the test equipment; and one end of the supporting piece is connected with the switching cavity, and the other end of the supporting piece supports the other end of the switching circuit board. The switching device provided by the utility model is used for realizing switching between the optical module and the test equipment, and replacing direct connection between the optical module and the test equipment, thereby reducing scratches caused by plugging connection between the optical module and the test equipment.

Description

Technical Field

[0001] The present disclosure relates to the field of optical fiber communication technology, and in particular to a switching device. Background Art

[0002] The rapid development of application markets such as big data, blockchain, cloud computing, the Internet of Things, and artificial intelligence has brought explosive growth to data traffic. Optical communication technology has gradually replaced traditional electrical signal communication in various industries with its unique advantages such as fast speed, high bandwidth, and low installation cost. In optical communication technology, optical modules are tools for realizing the mutual conversion of optical and electrical signals. They are one of the key components in optical communication equipment, and the transmission rate of optical modules continues to increase with the development of optical communication technology.

[0003] After the optical module is assembled or shipped out of the factory, it needs to be tested for performance, such as when plugged into a switch or other equipment for performance testing. The sockets of switches and other equipment used to connect optical modules are metal cages. When the optical module is plugged into a switch or other equipment for performance testing, the metal cage can easily scratch the outer shell of the optical module. When the outer shell of the optical module is scratched, the appearance of the optical module is poor, and the optical module does not meet the shipping standards. Utility Model Content

[0004] The disclosed embodiment provides a switching device for reducing scratches caused during testing of an optical module.

[0005] The present disclosure provides a switching device for testing switching between an optical module and a test device, comprising:

[0006] The adapter circuit board has a connector on the top surface, the connector is electrically connected to the adapter circuit board, and a gold finger is provided on the surface of one end of the adapter circuit board; the connector is used to plug the optical module;

[0007] The adapter cavity is formed with a fixed cavity; one end of the adapter circuit board is located in the fixed cavity, and the adapter circuit board is fixedly connected to the adapter cavity; the adapter cavity is used to assemble and connect the test equipment;

[0008] A support member has one end connected to the adapter cavity and the other end supporting the other end of the adapter circuit board.

[0009] The adapter device provided by the present disclosure has one end for connecting the test equipment and the other end for connecting the optical module, so as to realize the transfer between the optical module and the test equipment. When the optical module needs to be tested, the transfer cavity is inserted into the test equipment, the optical module is connected to the connector, the optical module is electrically connected to the test equipment through the transfer circuit board, and the support can support both the transfer circuit board and the optical module. Therefore, the transfer between the optical module and the test equipment is realized by the transfer device provided by the present disclosure, which replaces the direct connection between the optical module and the test equipment, thereby reducing the scratches caused by the plug-in connection between the optical module and the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0011] Figure 1 A schematic diagram of the structure of a switching device provided according to some embodiments of the present disclosure;

[0012] Figure 2 It is an exploded schematic diagram of a switching device provided according to some embodiments of the present disclosure;

[0013] Figure 3 A schematic diagram of the structure of a support member provided according to some embodiments of the present disclosure;

[0014] Figure 4 A schematic diagram of assembling a support member and a first housing according to some embodiments of the present disclosure;

[0015] Figure 5 It is an exploded schematic diagram of a support member and a first shell provided according to some embodiments of the present disclosure;

[0016] Figure 6 A schematic diagram of a partial structure of a switching device provided according to some embodiments of the present disclosure Figure 1 ;

[0017] Figure 7 A schematic diagram of a partial structure of a switching device provided according to some embodiments of the present disclosure Figure 2 ;

[0018] Figure 8 A schematic diagram of the structure of a connection reinforcement member provided according to some embodiments of the present disclosure;

[0019] Fig. 9A schematic diagram of assembling a connecting reinforcement member and a second housing according to some embodiments of the present disclosure Figure 1 ;

[0020] Fig.10 A schematic diagram of assembling a connecting reinforcement member and a second housing according to some embodiments of the present disclosure Figure 2 ;

[0021] Fig.11 A cross-sectional view of a switching device provided according to some embodiments of the present disclosure;

[0022] Fig.12 A diagram showing a use state of a switching device provided according to some embodiments of the present disclosure;

[0023] Fig.13 A cross-sectional view of a switching device in use according to some embodiments of the present disclosure;

[0024] Fig.14 for Fig.13 A partial enlarged view of the middle A;

[0025] Fig.15 This is a usage status diagram of another switching device provided according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0027] In an optical communication system, light signals are used to carry information to be transmitted, and the light signals carrying information are transmitted to information processing equipment such as computers through information transmission equipment such as optical fibers or optical waveguides to complete the transmission of information. Since light has passive transmission characteristics when transmitted through optical fibers or optical waveguides, low-cost and low-loss information transmission can be achieved. In addition, the signals transmitted by information transmission equipment such as optical fibers or optical waveguides are optical signals, while the signals that can be recognized and processed by information processing equipment such as computers are electrical signals. Therefore, in order to establish an information connection between information transmission equipment such as optical fibers or optical waveguides and information processing equipment such as computers, it is necessary to realize the mutual conversion between electrical signals and optical signals.

[0028] Optical modules realize the above-mentioned mutual conversion function between optical signals and electrical signals in the field of optical communication technology. Optical modules include optical ports and electrical ports. Optical modules realize optical communication with information transmission equipment such as optical fibers or optical waveguides through the optical ports, and realize electrical connection with optical network terminals (for example, optical modems) through the electrical ports. The electrical connection is mainly used for power supply, I2C signal transmission, data information transmission, and grounding. Optical network terminals transmit electrical signals to computers and other information processing equipment through network cables or wireless fidelity technology (Wi-Fi).

[0029] The performance test of optical modules before leaving the factory is usually carried out on devices such as switches. The optical modules need to be inserted into the cage of the switch and other devices so that the optical modules are electrically connected to the electrical connectors in the cage. When the optical module is inserted into or pulled out of the cage, the outer shell of the optical module contacts the cage. Since the outer shell of the optical module and the cage are in hard contact, the relative movement of the optical module in the cage may cause the outer shell of the optical module to rub against the cage, causing the cage to scratch the outer shell of the optical module.

[0030] In order to reduce the risk of the cage scratching the housing of the optical module, an embodiment of the present disclosure provides a switching device. One end of the switching device replaces the optical module and is inserted into the cage of a device such as a switch, and the other end of the switching device is connected to the optical module. The switching device is used to achieve the switching of the optical module to the device such as a switch, so as to reduce the direct contact between the optical module and the cage of the device such as the switch through the switching device, thereby reducing the risk of the cage scratching the housing of the optical module.

[0031] Figure 1 is a schematic diagram of the structure of a switching device provided according to some embodiments of the present disclosure, Figure 2 FIG. 1 is an exploded schematic diagram of a switching device provided according to some embodiments of the present disclosure. Figure 1 and Figure 2 As shown, the adapter device 100 includes an adapter circuit board 110, and the adapter circuit board 110 is used to realize the electrical connection between the optical module and a device such as a switch.

[0032] In some embodiments, a gold finger 111 is disposed on the surface of one end of the adapter circuit board 110 , and the gold finger 111 is used to electrically connect to an electrical connector in a cage of a device such as a switch.

[0033] In some embodiments, a connector 120 is disposed on the surface of the adapter circuit board 110, and the connector 120 is electrically connected to the adapter circuit board 110. Exemplarily, the connector 120 is mounted on the adapter circuit board 110 by soldering.

[0034] In some embodiments, the connector 120 includes a plurality of PIN pins, one end of the PIN pins is electrically connected to the adapter circuit board 110, and the other end of the PIN pins is used to electrically connect to the optical module. Therefore, the connector 120 is used to realize the electrical connection between the adapter circuit board 110 and the optical module through the PIN pins.

[0035] In some embodiments, a connector support portion 112 is provided on the adapter circuit board 110, the connector support portion 112 is located in the middle of the adapter circuit board 110, and the connector support portion 112 is welded to connect the connector 120. Exemplarily, a positioning hole 113 is provided on the connector support portion 112, and the positioning hole 113 is positioned to connect the connector 120.

[0036] In some embodiments, the adapter 100 includes an adapter cavity 130, which is used to achieve a fixed connection between the adapter 100 and a device cage such as a switch. Exemplarily, the adapter cavity 130 is inserted into the cage, and the outer side of the adapter cavity 130 is assembled and connected with the cage.

[0037] In some embodiments, the adapter cavity 130 is formed with a fixing cavity 131, and one end of the adapter circuit board 110 extends into the fixing cavity 131, so that the fixing cavity 131 wraps one end of the adapter circuit board 110. Exemplarily, the adapter cavity 130 can be fixedly connected to the adapter circuit board 110 to achieve the fixing of the adapter circuit board 110 in the fixing cavity 131.

[0038] In some embodiments, the adapter cavity 130 includes a first shell 132, and one end of the adapter circuit board 110 extends into the first shell 132. Exemplarily, the side edge of the adapter circuit board 110 is assembled and connected to the inner wall of the first shell 132.

[0039] In some embodiments, the length of one end of the first housing 132 is less than the length of the adapter circuit board 110, so that the end of one end of the adapter circuit board 110 extends out of the first housing 132. This facilitates the connection between the adapter circuit board 110 and an electrical connector in a device cage such as a switch.

[0040] In some embodiments, the adapter cavity 130 includes a second shell 133, which covers and connects to the first shell 132. The second shell 133 and the first shell 132 form a fixed cavity 131 with openings at both ends, and the adapter circuit board 110 passes through both ends of the fixed cavity 131 and passes out from the openings at both ends of the fixed cavity 131.

[0041] In some embodiments, the first shell 132 and the second shell 133 are fixedly connected by screws.

[0042] In some embodiments, the adapter cavity 130 includes a connector 134, which is used to connect the cage of the switch and other equipment. Exemplarily, the connector 134 is located outside the first shell 132, and the connector 134 is assembled to connect the first shell 132. Of course, in the embodiment of the present disclosure, the connector 134 can also be located outside the second shell 133.

[0043] In some embodiments, the connector 134 includes a snap-fitting portion 1341 that matches the cage of a device such as a switch. When the adapter 100 is inserted into the cage, the snap-fitting portion 1341 fixes the adapter 100 in the cage; when the connector 134 is pulled, the snap-fitting portion 1341 of the connector 134 moves accordingly, thereby changing the connection relationship between the snap-fitting portion 1341 and the host computer, so as to release the fixation between the adapter 100 and the device such as the switch, thereby pulling the adapter 100 out of the cage.

[0044] In some embodiments, the adapter device 100 includes a support member 140, and the support member 140 is used to support the adapter circuit board 110 or the optical module, etc. Exemplarily, one end of the support member 140 is connected to the adapter cavity 130, and one end of the support member 140 is located outside the adapter cavity 130, and the support member 140 is used to support the other end of the adapter circuit board 110 and support the optical module through the adapter circuit board 110.

[0045] In some embodiments, the support member 140 includes a support plate 141, one end of the support plate 141 is connected to the first housing 132, and the top surface of the support plate 141 supports the adapter circuit board 110. Exemplarily, the connector support portion 112 is located above the support plate 141, and the support plate 141 supports the connector support portion 112.

[0046] In some embodiments, the support member 140 includes a first limiting plate 142 and a second limiting plate 143, wherein the first limiting plate 142 is located on one side of the support plate 141, and the second limiting plate 143 is located on the other side of the support plate 141. Exemplarily, the bottom of the first limiting plate 142 is connected to one side of the support plate 141, and the bottom of the second limiting plate 143 is connected to the other side of the support plate 141. The first limiting plate 142 and the second limiting plate 143 are used to limit the optical module, so as to facilitate the precise assembly of the optical module during testing.

[0047] In some embodiments, the support member 140 includes a bridging plate 144 , one side of the bridging plate 144 is connected to the top of the first limiting plate 142 , and the other side of the bridging plate 144 is connected to the top of the second limiting plate 143 , so that the bridging plate 144 is suspended above the support plate 141 .

[0048] In some embodiments, the support plate 141, the first limiting plate 142, the second limiting plate 143 and the bridge plate 144 form a limiting cavity 140a, the other end of the adapter circuit board 110 extends into the limiting cavity 140a, and the connector 120 is located at the edge outside the limiting cavity 140a. The limiting cavity 140a is used to assemble the limiting optical module.

[0049] In some embodiments, a bridging plate 144 is provided with an avoidance hole 145, and the avoidance hole 145 is connected to the limiting cavity 140a; one side of the avoidance hole 145 extends to the first limiting plate 142, and the other side of the avoidance hole 145 extends to the second limiting plate 143. The avoidance hole 145 is provided on the bridging plate 144, and when the limiting cavity 140a is satisfied to limit and support the optical module, it is also convenient for the disassembly and assembly of the optical module. Exemplarily, one side of the avoidance hole 145 extends to the top of the first limiting plate 142, and the other side of the avoidance hole 145 extends to the top of the second limiting plate 143.

[0050] In some embodiments, the support member 140 is made of a material such as acrylic or rubber, which has a lower hardness than the optical module housing, so as to further reduce the risk of the support member 140 scratching the optical module housing.

[0051] In some embodiments, the adapter 100 includes a connection reinforcement member 150, one end of which is connected to the adapter cavity 130, and the other end of which is connected to the support member 140. The connection reinforcement member 150 is used to improve the connection strength between the support member 140 and the adapter cavity 130. Exemplarily, the connection reinforcement member 150 spans over the connector 120.

[0052] In some embodiments, one end of the connecting reinforcement 150 is connected to the second housing 133, and the other end of the connecting reinforcement 150 is connected to the bridging plate 144. Of course, in the embodiment of the present disclosure, the connection method of the connecting reinforcement 150 and the transition cavity 130 and the support member 140 is not limited thereto.

[0053] In the adapter device 100 provided in the embodiment of the present disclosure, when it is necessary to test the optical module, the adapter cavity 130 is inserted into the test equipment, the optical module is connected to the connector 120, the optical module is electrically connected to the test equipment through the adapter circuit board 110, and the support member 140 can support both the adapter circuit board 110 and the optical module. Therefore, the adapter device 100 provided in the embodiment of the present disclosure can realize the transfer between the optical module and the test equipment, replace the direct connection between the optical module and the test equipment, and thus reduce the scratches caused by the plug-in connection between the optical module and the test equipment.

[0054] Figure 3 is a schematic structural diagram of a support member provided according to some embodiments of the present disclosure, Figure 4 is a schematic diagram of assembling a support member and a first shell according to some embodiments of the present disclosure, Figure 5 FIG. 1 is a schematic diagram of an exploded view of a support member and a first shell provided according to some embodiments of the present disclosure. Figure 3-Figure 5As shown, a connection groove 146 is provided at one end of the support plate 141, and the connection groove 146 extends along the length direction of the support plate 141. A connection protrusion 1321 is provided on the inner side of the first shell 132, and the connection protrusion 1321 extends along the length direction of the first shell 132. The connection groove 146 is assembled and connected to the connection protrusion 1321, so that the support plate 141 and the first shell 132 are limitedly connected through the connection protrusion 1321 and the connection groove 146.

[0055] In some embodiments, a mounting surface 147 is disposed at the bottom of one end of the support plate 141 , and the mounting surface 147 is located below the connection groove 146 , and a step is formed between the mounting surface 147 and the bottom surface of the support plate 141 . The mounting surface 147 is used to cooperate with and connect to the first housing 132 .

[0056] In some embodiments, the limiting cavity 140 a is close to the other end of the supporting plate 141 .

[0057] In some embodiments, the other end of the support plate 141 is provided with a support extension portion 148, which is located outside the limiting cavity 140a and on a side of the limiting cavity 140a away from the first housing 132. The support extension portion 148 is used to support the optical module.

[0058] Figure 6 A schematic diagram of a partial structure of a switching device provided according to some embodiments of the present disclosure Figure 1 , Figure 7 A schematic diagram of a partial structure of a switching device provided according to some embodiments of the present disclosure Figure 2 , Figure 6 and Figure 7 A support assembly state is shown. Figure 6 and Figure 7 As shown, one end of the adapter circuit board 110 extends to the outside of one end of the first housing 132, and the other end of the adapter circuit board 110 extends to the limiting cavity 140a, and the connector 120 is located between the limiting cavity 140a and the first housing 132. The adapter circuit board 110 is pressed on the support plate 141, and when the adapter circuit board 110 is fixedly connected to the first housing 132, the adapter circuit board 110 makes the support member 140 and the first housing 132 fixedly connected.

[0059] Figure 8 FIG. 1 is a schematic diagram of a structure of a connection reinforcement member provided according to some embodiments of the present disclosure. Figure 8As shown, the connection reinforcement member 150 includes a first connection plate 151 and a second connection plate 152, and one end of the second connection plate 152 is connected to the other end of the first connection plate 151. The top surface of the first connection plate 151 and the top surface of the second connection plate 152 are located at different height positions, and the bottom surface of the first connection plate 151 and the bottom surface of the second connection plate 152 are located at different height positions. Exemplarily, the top surface position of the first connection plate 151 is lower than the top surface position of the second connection plate 152, and the bottom surface position of the first connection plate 151 is lower than the bottom surface position of the second connection plate 152.

[0060] In some embodiments, the first connecting plate 151 and the second connecting plate 152 may be an integral structure. Of course, in the embodiment of the present disclosure, the first connecting plate 151 and the second connecting plate 152 are two pieces, and one end of the second connecting plate 152 is connected to the other end of the first connecting plate 151 by screws.

[0061] Fig. 9 A schematic diagram of assembling a connecting reinforcement member and a second housing according to some embodiments of the present disclosure Figure 1 , Fig.10 A schematic diagram of assembling a connecting reinforcement member and a second housing according to some embodiments of the present disclosure Figure 2 .like Fig. 9 and Fig.10 As shown, one end of the first connecting plate 151 extends into the fixing cavity 131, the first connecting plate 151 is connected to the second housing 133, and the second connecting plate 152 is located at one end of the first connecting plate 151 away from the second housing 133. Exemplarily, the second housing 133 includes an upper bottom plate 1331, the upper bottom plate 1331 extends in a direction parallel to the top surface of the adapter circuit board 110, and the first connecting plate 151 is connected to the upper bottom plate 1331. For example, the first connecting plate 151 is connected to the upper bottom plate 1331 by screws.

[0062] In some embodiments, the bottom surface of the first connecting plate 151 contacts the top surface of the connecting adapter circuit board 110 , so that the connecting adapter circuit board 110 is pressed and fixed by the first connecting plate 151 .

[0063] Fig.11 1 is a cross-sectional view of a switching device provided according to some embodiments of the present disclosure. Fig.11 As shown, the second connecting plate 152 is connected to the bridge plate 144 , and the second connecting plate 152 spans over the connector 120 .

[0064] In some embodiments, the first housing 132 includes a lower bottom plate 1322, and the lower bottom plate 1322 extends in a direction parallel to the bottom surface of the adapter circuit board 110. A second support protrusion 1323 is provided on the lower bottom plate 1322, and the second support protrusion 1323 supports the bottom surface of the adapter circuit board 110. The second support protrusion 1323 can be provided at the edge of the lower bottom plate 1322 or across the top surface of the lower bottom plate 1322.

[0065] In some embodiments, a second support protrusion 1323 is disposed at the top of one end of the lower base plate 1322 , and the second support protrusion 1323 spans the top surface of the lower base plate 1322 , so that the second support protrusion 1323 extends from one side of the lower base plate 1322 to the other side of the lower base plate 1322 .

[0066] In some embodiments, the upper base plate 1331 is provided with a first support protrusion 1332, and the first support protrusion 1332 supports the top surface of the connecting adapter circuit board 110. The first support protrusion 1332 can be provided at the edge of the upper base plate 1331 or across the bottom surface of the upper base plate 1331.

[0067] In some embodiments, a first support protrusion 1332 is disposed at the bottom of one end of the upper base plate 1331 , and the first support protrusion 1332 spans the bottom surface of the upper base plate 1331 , so that the first support protrusion 1332 extends from one side of the upper base plate 1331 to the other side of the upper base plate 1331 .

[0068] In some embodiments, the first support protrusion 1332 and the second support protrusion 1323 are symmetrically arranged above and below the adapter circuit board 110, so that the adapter circuit board 110 is jointly supported by the first support protrusion 1332 and the second support protrusion 1323, so that the adapter circuit board 110 is fixedly connected to the adapter cavity 130.

[0069] Fig.12 13 is a sectional view of a use state of a switching device provided according to some embodiments of the present disclosure, Fig.14 for Fig.13 A partial enlarged view of the middle A. Fig.12 As shown, the optical module 200 is inserted into the limiting cavity 140a, and the support plate 141, the first limiting plate 142, the second limiting plate 143 and the bridge plate 144 are wrapped around the side of the housing of the optical module 200 to fix the optical module 200 on the adapter. The circuit board of the optical module 200 is inserted into the connector 120, so that the circuit board is electrically connected to the connector 120, so as to be electrically connected to the adapter circuit board 110 through the connector 120. Therefore, when the adapter circuit board 110 is electrically connected to a device such as a switch, the optical module 200 is electrically connected to a device such as a switch through the adapter circuit board 110.

[0070] Fig.15is a usage status diagram of another switching device provided according to some embodiments of the present disclosure, Fig.15 A structure in which multiple switching devices are arranged in two layers is shown. Fig.15 As shown, the switching devices 100 on the same layer are arranged in parallel, and the switching devices 100 on the adjacent layers are arranged symmetrically up and down, so that the connection reinforcement members 150 on the switching devices 100 on the adjacent layers are far away from each other. When testing the optical module through a switch or other device, the arrangement of the above-mentioned switching devices 100 is convenient for adapting to the simultaneous connection of multiple optical modules on a switch or other device.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A switching device, characterized in that: Used for test connection between optical modules and test equipment, including: The adapter circuit board has a connector on the top surface, the connector is electrically connected to the adapter circuit board, and a gold finger is provided on the surface of one end of the adapter circuit board; the connector is used to plug the optical module; The adapter cavity has a fixed cavity formed therein; one end of the adapter circuit board is located in the fixed cavity, and the adapter circuit board is fixedly connected to the adapter cavity; the adapter cavity is used to assemble and connect the test equipment; A support member has one end connected to the adapter cavity and the other end supporting the other end of the adapter circuit board.

2. The switching device according to claim 1, characterized in that: The support member includes a support plate, a first limiting plate, a second limiting plate and a bridging plate; One end of the support plate is connected to the transfer cavity, the bottom of the first limit plate is connected to one side of the support plate, and the bottom of the second limit plate is connected to the other side of the support plate; one side of the bridge plate is connected to the top of the first limit plate, and the other side of the bridge plate is connected to the top of the second limit plate; The first limiting plate, the second limiting plate, the bridging plate and the supporting plate form a limiting cavity; the bridging plate is provided with an avoidance hole, and both sides of the avoidance hole extend to the top of the first limiting plate and the top of the second limiting plate.

3. The switching device according to claim 1, characterized in that: The transfer cavity comprises a first shell, a second shell and a connecting piece; the second shell is covered and connected to the first shell to form a fixed cavity; the connecting piece is arranged on the side of the first shell.

4. The switching device according to claim 2, characterized in that: It also includes a connecting reinforcement member, which spans over the top of the connector; one end of the reinforcement member is connected to the transfer cavity, and the other end of the reinforcement member is connected to the bridge plate.

5. The switching device according to claim 2, characterized in that: The adapter circuit board includes a connector support portion, the connector support portion is located outside the adapter cavity, and the connector is arranged on the connector support portion; the support plate supports the connector support portion, and the connector is located outside the limiting cavity.

6. The switching device according to claim 2, characterized in that: A connecting groove is provided at one end of the support plate, a connecting protrusion is provided on the inner side of the adapter cavity, and the connecting protrusion is limitedly connected to the connecting groove; The adapter circuit board is fixedly connected to the support plate and the adapter cavity.

7. The switching device according to claim 2, characterized in that: A support extension portion is disposed at the other end of the support plate, and the support extension portion is located outside the limiting cavity.

8. The switching device according to claim 3, characterized in that: It also includes a connecting reinforcement member, which spans over the top of the connector; one end of the reinforcement member is connected to the inner side of the second shell, and the other end of the reinforcement member is connected to the support member.

9. The switching device according to claim 3, characterized in that: The second shell includes an upper bottom plate, on which a first supporting protrusion is arranged; the first shell includes a lower bottom plate, on which a second supporting protrusion is arranged; The first supporting protrusion is supported and connected to the top surface of the adapter circuit board, and the second supporting protrusion is supported and connected to the bottom surface of the adapter circuit board.

10. The switching device according to claim 4, characterized in that: The connecting reinforcement comprises a first connecting plate and a second connecting plate; one end of the first connecting plate extends into the adapter cavity and is fixedly connected to the adapter cavity, and the top of the other end of the second connecting plate is connected to one end of the second connecting plate; the second connecting plate spans above the connector, and the other end of the second connecting plate is connected to the top of the bridging plate.

Images