Signal converter

Abstract

The utility model discloses a signal converter. The signal converter comprises an outer shell, an inner shell, a first light guide piece, a first sealing ring, a second sealing ring, a connector, a waterproof piece and a stress release piece. The inner shell is arranged in the outer shell. The first light guide piece is arranged between the outer shell and the inner shell and attached to the inner face of the outer shell through sealant. The head end of the inner shell is sleeved with the first sealing ring, and the first sealing ring is clamped between the outer shell and the inner shell. And the second sealing ring is sleeved at the tail end of the inner shell and is clamped between the outer shell and the inner shell. The connector is fixed at the head end of the inner shell. And the waterproof piece is clamped between the connector and the inner surface of the head end of the inner shell. A stress relief is formed on the tails of the outer and inner shells. By arranging the sealant, the first sealing ring, the second sealing ring, the waterproof piece and the stress releasing piece in the gaps of the outer shell, the inner shell, the first light guide piece and the connector, the signal converter can effectively meet the waterproof requirement.

Description

Technical Field

[0001] The utility model relates to a signal converter, in particular to a signal converter which can meet waterproof requirements. Background Art

[0002] The portable respiratory monitor needs to be connected to the corresponding device using RS232, RS422 and Ethernet standard connection options. Therefore, three different cables are used for the three connection options (RS232, RS422 and Ethernet). The signal converter of the portable respiratory monitor needs to be protected by a shell and meet the waterproof requirements. How to make the signal converter meet the waterproof requirements has become a major design issue. Utility Model Content

[0003] In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a signal converter that can meet the waterproof requirements to solve the above problems.

[0004] The utility model adopts the following technical scheme: The purpose of the utility model is to provide a signal converter, including an outer shell, an inner shell, a first light guide, a first sealing ring, a second sealing ring, a connector and a waterproof member. The inner shell is arranged in the outer shell. The first light guide is arranged between the outer shell and the inner shell, and the first light guide is adhered to the inner surface of the outer shell through a sealant. The first sealing ring is sleeved on the head end of the inner shell, and the first sealing ring is clamped between the outer shell and the inner shell. The second sealing ring is sleeved on the tail end of the inner shell, and the second sealing ring is clamped between the outer shell and the inner shell. The connector is fixed to the head end of the inner shell. The waterproof member is clamped between the connector and the inner surface of the head end of the inner shell. The stress release member is molded on the tail of the outer shell and the inner shell.

[0005] The inner shell comprises a base and a cover body, the base has a mounting hole, the connector is fixed to the mounting hole, the cover body is arranged on the base, and the first light guide is located on the cover body.

[0006] The cover body has two slots, and the signal converter further includes two second light guide members, which are disposed in the two slots and correspond to the first light guide members.

[0007] The signal converter further includes a circuit board, which is disposed in the inner shell. The connector is connected to the circuit board. The circuit board includes two light-emitting units, which correspond to the two second light guide members.

[0008] The housing has two through holes, and the first light guide member has two light guide portions, and the two light guide portions are located in the two through holes.

[0009] The connector is a RS232 connector, a RS422 connector or an Ethernet connector.

[0010] Therefore, according to the above technical solution, the signal converter of the utility model has at least the following advantages and beneficial effects: the signal converter of the utility model can meet the waterproof requirements by setting sealant, a first sealing ring, a second sealing ring, a waterproof member and a stress release member at the gaps of the outer shell, the inner shell, the first light guide and the connector. The connector can be an RS232 connector, an RS422 connector or an Ethernet connector to form three different cables for three connection options (RS232, RS422 and Ethernet). In addition, the light emitted by the light-emitting unit on the circuit board can be emitted from the outer shell through the second light guide and the first light guide to form an indicator light for the user to observe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of a signal converter according to an embodiment of the utility model.

[0012] Figure 2 yes Figure 1 Exploded diagram of the signal converter in Figure 1.

[0013] Figure 3 yes Figure 2 Exploded diagram of the signal converter in Figure 1.

[0014] Figure 4 yes Figure 1 Cross-sectional view of the signal converter in FIG.

[0015] Figure 5 It is a three-dimensional diagram of a signal converter according to another embodiment of the utility model.

[0016] Explanation of the reference numerals: 1, 1'-signal converter; 10-outer shell; 12-inner shell; 12a-head end; 12b-tail end; 14-first light guide; 16-first sealing ring; 18-second sealing ring; 20, 20'-connector; 22-waterproof member; 23-stress relief member; 24-second light guide; 26-circuit board; 28-sealant; 100-through hole; 120-base; 122-cover; 140-light guide part; 260-light-emitting unit; 1200-mounting hole; 1220-slot; X-section line. DETAILED DESCRIPTION

[0017] Please refer to Figures 1 to 4 , Figure 1 is a three-dimensional diagram of a signal converter 1 according to an embodiment of the present utility model. Figure 2 yes Figure 1 Exploded view of signal converter 1 in FIG. Figure 3 yes Figure 2Exploded view of signal converter 1 in FIG. Figure 4 yes Figure 1 A cross-sectional view of the signal converter 1 along line XX.

[0018] like Figures 1 to 4 As shown, the signal converter 1 of the utility model includes an outer shell 10, an inner shell 12, a first light guide 14, a first sealing ring 16, a second sealing ring 18, a connector 20, a waterproof member 22, a stress release member 23, two second light guides 24 and a circuit board 26. The inner shell 12 is disposed in the outer shell 10. The first light guide 14 is disposed between the outer shell 10 and the inner shell 12. The first light guide 14 is attached to the inner surface of the outer shell 10 through a sealant 28. In this embodiment, the sealant 28 can be a waterproof foam double-sided adhesive or other similar adhesive materials, depending on the actual application. In this embodiment, the inner shell 12 may include a base 120 and a cover 122. The base 120 has a mounting hole 1200, and the connector 20 is fixed to the mounting hole 1200. In this embodiment, the connector 20 may be an RS232 connector or an RS422 connector. The cover 122 is disposed on the base 120 to cover the components located in the inner shell 12.

[0019] The first light guide 14 is located on the cover 122. In this embodiment, the housing 10 may have two through holes 100, and the first light guide 14 may have two light guide portions 140. When the first light guide 14 is attached to the inner surface of the housing 10 through the sealant 28, the two light guide portions 140 are located in the two through holes 100. In addition, the cover 122 may have two slots 1220. Two second light guides 24 are disposed in the two slots 1220 and correspond to the first light guide 14. In this embodiment, the two second light guides 24 correspond to the two light guide portions 140 of the first light guide 14. The circuit board 26 is disposed in the inner housing 12, and the connector 20 is connected to the circuit board 26. The circuit board 26 may include two light emitting units 260. The light emitting unit 260 may be a light emitting diode or other light source that can emit light. The two light emitting units 260 correspond to the two second light guides 24. Therefore, the light emitted by the light emitting unit 260 can be emitted from the housing 10 through the second light guide member 24 and the first light guide member 14 to form an indicator light for the user to see.

[0020] The first sealing ring 16 is sleeved on the head end 12a of the inner shell 12, wherein the first sealing ring 16 is sandwiched between the outer shell 10 and the inner shell 12. In this embodiment, the first sealing ring 16 can be sleeved on the base 120. The second sealing ring 18 is sleeved on the tail end 12b of the inner shell 12, wherein the second sealing ring 18 is sandwiched between the outer shell 10 and the inner shell 12. In this embodiment, the first sealing ring 16 can be sleeved on the base 120 and the cover 122. The first sealing ring 16 and the second sealing ring 18 can be O-rings or other similar elements. The connector 20 is fixed to the head end 12a of the inner shell 12. The waterproof member 22 is sandwiched between the connector 20 and the inner surface of the head end 12a of the inner shell 12. During assembly, the waterproof member 22 can be first attached to the connector 20, and then the connector 20 is fixed to the mounting hole 1200 of the base 120, so that the waterproof member 22 is sandwiched between the connector 20 and the inner surface of the head end 12a of the inner shell 12. The waterproof member 22 may be waterproof foam or other similar elements. The stress relief member 23 is formed on the tail of the outer shell 10 and the inner shell 12. The stress relief member (SR) 23 can increase the bending radius of the cable and provide protection at weak locations to prevent fatigue damage to the cable during use.

[0021] By providing sealant 28, first sealing ring 16, second sealing ring 18, waterproof member 22 and stress release member 23 at the gaps between outer shell 10, inner shell 12, first light guide member 14 and connector 20, the signal converter 1 of the present invention can effectively meet the waterproof requirements.

[0022] Please refer to Figure 5 , Figure 5 FIG. 1 is a perspective view of a signal converter 1' according to another embodiment of the present invention. Figure 5 As shown, the connector 20' of the signal converter 1' may be an Ethernet connector. It should be noted that the waterproof structure configuration of the signal converter 1' may be the same as the waterproof structure configuration of the signal converter 1 described above, and will not be described in detail here.

[0023] Figure 1 The signal converter 1 and Figure 5 The signal converters 1 ′ shown can be applied to portable respiratory monitors or other devices requiring signal conversion.

[0024] Therefore, according to the above technical solution, the signal converter of the utility model has at least the following advantages and beneficial effects: the signal converter of the utility model can meet the waterproof requirements by setting sealant, a first sealing ring, a second sealing ring, a waterproof member and a stress release member at the gaps of the outer shell, the inner shell, the first light guide and the connector. The connector can be an RS232 connector, an RS422 connector or an Ethernet connector to form three different cables for three connection options (RS232, RS422 and Ethernet). In addition, the light emitted by the light-emitting unit on the circuit board can be emitted from the outer shell through the second light guide and the first light guide to form an indicator light for the user to observe.

[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A signal converter, characterized in that: The signal converter comprises: shell; An inner shell, disposed in the outer shell; A first light guide is disposed between the outer shell and the inner shell, and the first light guide is attached to the inner surface of the outer shell by a sealant; A first sealing ring, sleeved on the head end of the inner shell, and the first sealing ring is sandwiched between the outer shell and the inner shell; A second sealing ring, sleeved on the rear end of the inner shell, and the second sealing ring is sandwiched between the outer shell and the inner shell; A connector fixed to the head end of the inner shell; a waterproof member sandwiched between the connector and the inner surface of the head end of the inner shell; and A stress relief piece is formed on the tail of the outer shell and the inner shell.

2. The signal converter according to claim 1, characterized in that The inner shell comprises a base and a cover body, the base has a mounting hole, the connector is fixed to the mounting hole, the cover body is arranged on the base, and the first light guide is located on the cover body.

3. The signal converter according to claim 2, characterized in that The cover body has two slots, and the signal converter further includes two second light guide members, which are disposed in the two slots and correspond to the first light guide members.

4. The signal converter according to claim 3, characterized in that: The signal converter further includes a circuit board, which is disposed in the inner shell. The connector is connected to the circuit board. The circuit board includes two light-emitting units, which correspond to the two second light guide members.

5. The signal converter according to claim 1, wherein: The housing has two through holes, and the first light guide member has two light guide portions, and the two light guide portions are located in the two through holes.

6. The signal converter according to claim 1, wherein: The connector is a RS232 connector, a RS422 connector or an Ethernet connector.

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