Waterproof connector online detection high-pressure cabin

Abstract

The utility model discloses a watertight connector on -line detection high pressure cabin relates to electric connector technical field. A watertight connector on -line detection high pressure cabin, include: detection cabin, the inside of detection cabin is along the axial and is equipped with the containing cavity of two ends of through, first sealing head and second sealing head, first sealing head and second sealing head are sealed and are connected respectively in the both ends of containing cavity, and the end between the end of first sealing head and second sealing head each into containing cavity forms the detection cavity of airtight, wherein, the wiring assembly of two ends of first sealing head is installed along the axial and is equipped with the both ends of first sealing head, and the connector of first sealing head's end of going in is detachably installed through the wiring assembly and is detected, and the connector is located in the inside of detection cavity, and the one end of second sealing head away from detection cavity is installed with pressurizing device. The utility model can conveniently and reliably detect the performance of connector under high pressure and high humidity environment.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a high-pressure chamber for online testing of watertight connectors. Background Technology

[0002] In fields such as marine engineering, underwater exploration, and diving equipment, underwater connectors are key components for transmitting electrical signals or power, and their reliability directly affects the operational safety of the entire underwater system. The underwater environment is characterized by high pressure, high humidity, and high electrolyte content, placing stringent requirements on the insulation and sealing performance of connectors. Especially during long-term underwater operation, stable insulation resistance must be maintained to prevent equipment failure due to leakage or signal interference.

[0003] Therefore, how to provide a device to reliably test the performance of watertight connectors under high pressure and high humidity environments to ensure product quality has become an urgent technical problem to be solved. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an online high-pressure chamber for testing watertight connectors, which can conveniently and reliably test the performance of connectors under high pressure and high humidity environments.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides an online testing high-pressure chamber for watertight connectors, comprising:

[0007] The testing chamber has an axially extending cavity that extends through both ends.

[0008] A first sealing head and a second sealing head are respectively sealed and connected to both ends of the receiving cavity, and a sealed detection cavity is formed between the ends of the first sealing head and the second sealing head that extend into the receiving cavity.

[0009] The first sealing head is equipped with a wiring assembly that extends axially through both ends of the first sealing head. A connector to be tested is detachably mounted at the extended end of the first sealing head via the wiring assembly. The connector is located inside the testing cavity.

[0010] A pressurizing device is installed at the end of the second sealing head away from the detection cavity. A first channel is formed axially inside the second sealing head, penetrating both ends of the second sealing head. The output end of the pressurizing device is connected to the detection cavity through the first channel.

[0011] Furthermore, the two ends of the receiving cavity are respectively formed with a first stepped hole and a second stepped hole in a direction from the outside to the inside, wherein the diameter of the first stepped hole is larger than that of the second stepped hole.

[0012] The protruding ends of the first sealing head and the second sealing head abut against the interior of the second stepped hole, and a first pressure ring and a second pressure ring are respectively fitted onto the outer walls of the first sealing head and the second sealing head.

[0013] The first pressure ring and the second pressure ring are respectively screwed into the inside of the first stepped hole to press against the respective portions of the first sealing head and the second sealing head that extend into the second stepped hole.

[0014] Furthermore, O-rings are fitted onto the portions of the first sealing head and the second sealing head that extend into the second stepped hole.

[0015] Furthermore, the first sealing head includes a first end and a second end, wherein the diameter of the first end is larger than the diameter of the second end.

[0016] The first end is located inside the second stepped hole, and the O-ring is fitted on the outer side wall of the first end;

[0017] The first pressure ring is sleeved on the outer wall of the second end, and its end near the first end is pressed against the first end by the first pressing assembly.

[0018] Furthermore, an annular first pressing surface is formed at the junction of the first end and the second end.

[0019] A portion of the first pressing surface is located inside the second stepped hole, and another portion is located inside the first stepped hole;

[0020] The first pressing component is positioned in the space between the first pressing surface and the inner sidewalls of the first stepped hole and the second stepped hole.

[0021] Furthermore, the first pressing surface includes a first conical surface near the first end and a first transition surface near the second end.

[0022] The first clamping assembly includes a first clamping ring and a first metal elastic ring.

[0023] A portion of the inner sidewall of the first metal elastic ring is fitted tightly against the first conical surface, and another portion is fitted tightly against the first transition surface.

[0024] The inner wall of the first clamping ring is in close contact with the first transition surface, and the two ends of the first clamping ring abut against the first pressure ring and the first metal elastic ring, respectively.

[0025] Furthermore, the second sealing head includes a third end and a fourth end, wherein the diameter of the third end is larger than the diameter of the fourth end.

[0026] The third end is located inside the second stepped hole, and the O-ring is fitted on the outer wall of the third end;

[0027] The second pressure ring is sleeved on the outer side wall of the fourth end, and its end near the third end is pressed against the third end by the second pressing assembly.

[0028] Furthermore, a second annular pressing surface is formed at the junction of the third end and the fourth end.

[0029] A portion of the second pressing surface is located inside the second stepped hole, and another portion is located inside the first stepped hole;

[0030] The second pressing component is positioned in the space between the second pressing surface and the inner wall of the first stepped hole and the second stepped hole.

[0031] Furthermore, the second pressing surface includes a second conical surface near the third end and a second transition surface near the fourth end.

[0032] The second clamping assembly includes a second clamping ring and a second metal elastic ring.

[0033] A portion of the inner sidewall of the second metal elastic ring fits snugly against the second conical surface, while another portion fits snugly against the second transition surface.

[0034] The inner wall of the second clamping ring is in close contact with the second transition surface, and the two ends of the second clamping ring abut against the second pressure ring and the second metal elastic ring, respectively.

[0035] Furthermore, the interior of the first sealing head is formed with a second channel and a third channel extending through both ends of the first sealing head along the axial direction.

[0036] The second channel is used to install the wiring assembly, and the third channel is used to install the pressure sensor.

[0037] Compared with existing technologies, the advantages of this utility model are:

[0038] This utility model's online high-pressure testing chamber for watertight connectors features a through-cavity within the testing chamber. A first sealing head and a second sealing head are symmetrically installed at both ends of this cavity. The ends of each sealing head within the cavity form a sealed high-pressure testing chamber with the inner wall of the testing chamber. A wiring assembly is axially mounted on the first sealing head, and the connector is inserted into the end of the first sealing head that extends into the cavity. A pressurizing device is installed on the second sealing head, which injects high-pressure water into the testing chamber through a first channel to create a high-pressure environment. An external testing device is connected to the wiring assembly to test the electrical performance of the connector under this high-pressure environment. Therefore, this utility model's online high-pressure testing chamber for watertight connectors can reliably test the electrical performance of connectors under high-pressure and high-humidity conditions, offering convenient operation and high safety. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the high-pressure chamber for online testing of the watertight connector according to an embodiment of the present invention;

[0040] Figure 2 for Figure 1 Enlarged schematic diagram of region a in the middle.

[0041] Figure label:

[0042] 100. Detection chamber; 110. Detection cavity; 120. First step hole; 130. Second step hole; 140. O-ring;

[0043] 200, First sealing head; 210, First pressure ring; 220, First pressing surface; 221, First conical surface; 222, First transition surface; 230, First clamping assembly; 231, First clamping ring; 232, First metal elastic ring; 240, Second channel; 250, Third channel; 300, Second sealing head; 310, First channel; 320, Second pressure ring; 400, Wiring assembly; 500, Pressurizing device; 600, Base; 610, Cavity; 700, Connector. Detailed Implementation

[0044] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] This utility model provides an online testing chamber for watertight connectors, such as... Figure 1 As shown, the device may include a detection chamber 100, a first sealing head 200, and a second sealing head 300. The detection chamber 100 has an axially extending receiving cavity extending through both ends. The first sealing head 200 and the second sealing head 300 are respectively sealed and connected to the two ends of the receiving cavity, forming a sealed detection cavity 110 between the ends of the first sealing head 200 and the second sealing head 300 that extend into the receiving cavity. A wiring assembly 400 extending axially through both ends of the first sealing head 200 is mounted on the first sealing head 200. A connector 700 to be tested is detachably mounted at the extended end of the first sealing head 200 via the wiring assembly 400, and the connector 700 is located inside the detection cavity 110. A pressurizing device 500 is mounted on the end of the second sealing head 300 away from the detection cavity 110. A first channel 310 extending axially through both ends of the second sealing head 300 is formed inside the second sealing head 300, and the output end of the pressurizing device 500 is connected to the detection cavity 110 through the first channel 310.

[0046] Specifically, the online high-pressure chamber for watertight connectors of this invention has a through-cavity inside the testing chamber 100, and a first sealing head 200 and a second sealing head 300 are symmetrically installed at both ends of the cavity. The ends of the first sealing head 200 and the second sealing head 300 inside the cavity form a sealed high-pressure testing chamber 110 with the inner wall of the testing chamber 100. A wiring assembly 400 is axially mounted on the first sealing head 200, and a connector 700 is inserted into the end of the wiring assembly 400 that extends into the cavity. A pressurizing device 500 is mounted on the second sealing head 300, which injects high-pressure water into the testing chamber 110 through a first channel 310 to create a high-pressure environment. A testing device is connected externally to the wiring assembly 400 to test the electrical performance of the connector 700 under this high-pressure environment. Therefore, the online high-pressure chamber for watertight connectors of this invention can reliably test the electrical performance of connectors under high pressure and high humidity conditions, offering convenient operation and high safety.

[0047] In some embodiments, such as Figure 1 and Figure 2 As shown, the two ends of the receiving cavity are respectively formed with a first stepped hole 120 and a second stepped hole 130 in a direction from the outside to the inside. The diameter of the first stepped hole 120 is larger than that of the second stepped hole 130. The protruding ends of the first sealing head 200 and the second sealing head 300 abut against the interior of the second stepped hole 130. A first pressure ring 210 and a second pressure ring 320 are respectively sleeved on the outer walls of the first sealing head 200 and the second sealing head 300. The first pressure ring 210 and the second pressure ring 320 are respectively screwed into the interior of the first stepped hole 120 to press against the respective portions of the first sealing head 200 and the second sealing head 300 that extend into the second stepped hole 130.

[0048] In other words, by providing a first stepped hole 120 and a second stepped hole 130 with different diameters from the outside to the inside at both ends of the receiving cavity, the smaller diameter second stepped hole 130 is adapted to the outer diameter of the first sealing head 200 and the second sealing head 300, while the larger diameter first stepped hole 120 facilitates the positioning and insertion of the first sealing head 200 and the second sealing head 300, thus improving the ease of installation. The inserted ends of the first sealing head 200 and the second sealing head 300 are embedded in the interior of the second stepped hole 130 for limiting, and the portions of the first sealing head 200 and the second sealing head 300 located in the first stepped hole 120 are respectively fitted with a first pressure ring 210 and a second pressure ring 320. The outer walls of the first pressure ring 210 and the second pressure ring 320 are threadedly connected to the inner wall of the first stepped hole 120, so that the ends of the first pressure ring 210 and the second pressure ring 320 can press and fix the portions of the first sealing head 200 and the second sealing head 300 that extend into the second stepped hole 130.

[0049] As an example, such as Figure 1 and Figure 2 As shown, O-rings 140 (rubber material) are fitted onto the portions of the first sealing head 200 and the second sealing head 200 that extend into the second stepped hole 130. Specifically, the first sealing head 200 may include a first end and a second end, the diameter of the first end being larger than the diameter of the second end. The first end is located inside the second stepped hole 130, and an O-ring 140 is fitted onto the outer wall of the first end, thereby achieving a first seal between the first sealing head 200 and the inner wall of the receiving cavity. A first pressure ring 210 is fitted onto the outer wall of the second end, and its end near the first end is pressed against the first end by a first pressing assembly 230.

[0050] In other words, the first sealing head 200 is configured with a first end and a second end with different diameters. The first end with a larger diameter is embedded inside the second stepped hole 130, and the second end with a smaller diameter forms an installation space between itself and the inner wall of the second stepped hole 130 for installing the first pressure ring 210. The crimping end of the first pressure ring 210 simultaneously covers the annular step of the second stepped hole 130 and the annular step formed by the first end protruding from the second end. The crimping end of the first pressure ring 210 securely locks the first sealing head 200 inside the receiving cavity through the first clamping assembly 230.

[0051] In some embodiments, such as Figure 2 As shown, an annular first pressing surface 220 is formed at the junction of the first end and the second end. Part of the first pressing surface 220 is located inside the second stepped hole 130, and another part is located inside the first stepped hole 120. A first clamping assembly 230 is disposed in the space between the first pressing surface 220 and the inner sidewalls of the first stepped hole 120 and the second stepped hole 130.

[0052] Therefore, the first clamping assembly 230 can be reliably and compactly positioned in the space between the first pressing surface 220 and the inner sidewalls of the first stepped hole 120 and the second stepped hole 130, thereby improving the stability of the locking.

[0053] As an example, such as Figure 2 As shown, the first pressing surface 220 includes a first conical surface 221 near the first end and a first transition surface 222 near the second end. The first pressing assembly 230 includes a first pressing ring 231 and a first metal elastic ring 232. A portion of the inner wall of the first metal elastic ring 232 is adapted to fit tightly against the first conical surface 221, and another portion is tightly against the first transition surface 222. The inner wall of the first pressing ring 231 is tightly against the first transition surface 222, and the two ends of the first pressing ring 231 abut against the first pressing ring 210 and the first metal elastic ring 221, respectively.

[0054] Therefore, the tight contact between the first clamping ring 231 and the first metal elastic ring 232 can further seal the gap between the first sealing head 200 and the inner wall of the detection chamber 100. Furthermore, when the O-ring 140 experiences a gas explosion under high pressure, the seal between the first clamping ring 231 and the first metal elastic ring 232 can effectively block the pressure generated by the gas explosion, preventing it from extending outside the detection chamber 100. Specifically, the first clamping ring 231 and the first metal elastic ring 232 can also have a conical contact, but the inclination direction of the conical surface is opposite to that of the first conical surface 221, thereby enhancing the locking stability.

[0055] It should be noted that the metal seal formed by the first clamping ring 231 (e.g., made of 35CrNi3MoVR) and the first metal elastic ring 232 (e.g., made of 40Cr alloy structural steel) generally uses a hard-soft fit. The first clamping ring 231 acts as a compensation structure, providing pre-tightening force at all times to ensure the sealing effect. When there is no pressure inside the equipment, tightening the first clamping ring 210 generates a downward force on the first clamping ring 231, causing the first metal elastic ring 232 to undergo plastic deformation and establish an initial seal. When water pressure is introduced into the detection chamber 110, the pressure acts on the first metal elastic ring 232, generating an upward force that attempts to push open the first metal elastic ring 232. However, this upward force also acts on the first metal elastic ring 232. Since the end face of the first clamping ring 231 is designed as a slope with a certain angle, this upward force is decomposed. The upward thrust generated by the medium pressure is converted into a larger clamping force within the chamber through the inclined surface of the first clamping ring 231. This force further compresses the first metal elastic ring 232 (relative force). The higher the internal medium (water) pressure, the greater this compensating clamping force will be, thereby achieving a strengthened sealing effect.

[0056] In some embodiments, the second sealing head 300 may include a third end and a fourth end, the diameter of the third end being larger than the diameter of the fourth end, the third end being located inside the second stepped hole 130, and an O-ring 140 being fitted onto the outer wall of the third end. A second pressure ring 320 is fitted onto the outer wall of the fourth end, and its end near the third end is pressed against the third end by a second pressing assembly.

[0057] In some embodiments, an annular second pressing surface is formed at the junction of the third end and the fourth end. A portion of the second pressing surface is located inside the second stepped hole 130, and another portion is located inside the first stepped hole 120. A second clamping assembly is disposed in the space between the second pressing surface and the inner sidewalls of the first stepped hole 120 and the second stepped hole 130.

[0058] In some embodiments, the second pressing surface may include a second conical surface near the third end and a second transition surface near the fourth end. The second pressing assembly includes a second pressing ring and a second metal elastic ring. A portion of the inner sidewall of the second metal elastic ring is adapted to fit tightly against the second conical surface, and another portion is tightly against the second transition surface. The inner sidewall of the second pressing ring is tightly against the second transition surface. The two ends of the second pressing ring abut against the second pressing ring 320 and the second metal elastic ring, respectively.

[0059] It should be noted that the mating structure between the second sealing head 300 and the inner wall of the receiving cavity is a mirror image of the mating structure between the first sealing head 200 and the inner wall of the receiving cavity, which will not be elaborated further.

[0060] The only difference is that the second metal elastic ring in the second clamping assembly is made of T2 pure copper material with better plasticity. This is because the second sealing head 300 does not need to be disassembled, while the first sealing head 200 needs to be disassembled frequently, and wear will occur during the disassembly and assembly process. Therefore, compared with the seal at the second sealing head 300, the seal at the first sealing head 200 needs to be made of a material with better wear resistance. Thus, the first sealing head 200 is made of 40Cr alloy structural steel material (higher hardness), while the second sealing head 300 is made of T2 pure copper material (lower hardness, i.e., softer).

[0061] In addition, such as Figure 1 As shown, the online high-pressure chamber for watertight connector testing of this utility model can vertically mount the testing chamber 100 on the base 600. A cavity 610 is formed in the middle of the base 600. The testing chamber 100 is installed aligned with the cavity 610. The end of the testing chamber 100 near the second sealing head 300 is connected to the base 600, thereby accommodating the protruding second sealing head 300 and the pressurizing device 500 in the cavity 610, thus improving the convenience of testing.

[0062] In some embodiments, such as Figure 1 As shown, the interior of the first sealing head 200 has a second channel 240 and a third channel 250 extending axially through both ends of the first sealing head 200. The interior of the second channel 240 is used to mount the wiring assembly 400, and the interior of the third channel 250 is used to mount a pressure sensor (not shown).

[0063] Specifically, the second channel 240 is used to pass a wiring assembly 400 through the inside of the first sealing head 200, so that the connector 700 in the detection chamber 110 can be connected to an external detection device through the wiring assembly 400 to realize electrical performance testing; while the third channel 250 can be used to connect an external pressure sensor, which monitors the water pressure in the detection chamber 110 in real time through the third channel 250. In addition, the third channel 250 also has the functions of venting air when the pressurizing device 500 introduces high-pressure water into the detection chamber 110, and venting water from the detection chamber 110 when the detection stops.

[0064] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-pressure chamber for online testing of watertight connectors, characterized in that, include: The detection chamber (100) has an axially extending cavity extending through both ends inside. A first sealing head (200) and a second sealing head (300) are respectively sealed and connected to both ends of the receiving cavity. A sealed detection cavity (110) is formed between the ends of the first sealing head (200) and the second sealing head (300) that extend into the receiving cavity. The first sealing head (200) is equipped with a wiring assembly (400) that extends axially through both ends of the first sealing head (200). A connector (700) to be tested is detachably mounted at the extended end of the first sealing head (200) via the wiring assembly (400). The connector (700) is located inside the detection cavity (110). A pressurizing device (500) is installed at one end of the second sealing head (300) away from the detection cavity. A first channel (310) is formed axially inside the second sealing head (300) and passes through both ends of the second sealing head (300). The output end of the pressurizing device (500) is connected to the detection cavity (200) through the first channel (310).

2. The online testing high-pressure chamber for watertight connectors according to claim 1, characterized in that, The two ends of the receiving cavity are respectively formed with a first stepped hole (120) and a second stepped hole (130) in the direction from the outside to the inside. The diameter of the first stepped hole (120) is larger than that of the second stepped hole (130). The protruding ends of the first sealing head (200) and the second sealing head (300) abut against the interior of the second stepped hole (130), and the outer walls of the first sealing head (200) and the second sealing head (300) are respectively fitted with a first pressure ring (210) and a second pressure ring (320). The first pressure ring (210) and the second pressure ring (320) are respectively screwed into the inside of the first stepped hole (120) to press against the portions of the first sealing head (200) and the second sealing head (300) that extend into the second stepped hole (130).

3. The online testing high-pressure chamber for watertight connectors according to claim 2, characterized in that, The portions of the first sealing head (200) and the second sealing head (300) that extend into the second stepped hole (130) are fitted with O-rings.

4. The online testing high-pressure chamber for watertight connectors according to claim 3, characterized in that, The first sealing head (200) includes a first end and a second end, wherein the diameter of the first end is larger than the diameter of the second end. The first end is located inside the second stepped hole (130), and the O-ring (140) is fitted on the outer side wall of the first end. The first pressure ring (210) is sleeved on the outer side wall of the second end, and its end near the first end is pressed against the first end by the first pressing assembly (230).

5. The online testing high-pressure chamber for watertight connectors according to claim 4, characterized in that, An annular first pressing surface (220) is formed at the junction of the first end and the second end. A portion of the first pressing surface (220) is located inside the second stepped hole (130), and another portion is located inside the first stepped hole (120); The first pressing assembly (230) is positioned in the space between the first pressing surface (220) and the inner sidewalls of the first stepped hole (120) and the second stepped hole (130).

6. The online testing high-pressure chamber for watertight connectors according to claim 5, characterized in that, The first pressing surface (220) includes a first conical surface (221) near the first end and a first transition surface (222) near the second end. The first clamping assembly (230) includes a first clamping ring (231) and a first metal elastic ring (232). A portion of the inner wall of the first metal elastic ring (232) is fitted and closely attached to the first conical surface (221), and another portion is closely attached to the first transition surface (222). The inner wall of the first clamping ring (231) is in close contact with the first transition surface (222), and the two ends of the first clamping ring (231) abut against the first pressure ring (210) and the first metal elastic ring (232) respectively.

7. The online testing high-pressure chamber for watertight connectors according to claim 3, characterized in that, The second sealing head (300) includes a third end and a fourth end, wherein the diameter of the third end is larger than the diameter of the fourth end. The third end is located inside the second stepped hole (130), and the O-ring (140) is fitted on the outer side wall of the third end. The second pressure ring (320) is sleeved on the outer side wall of the fourth end, and one end of it near the third end is pressed against the third end by the second pressing assembly.

8. The online testing high-pressure chamber for watertight connectors according to claim 7, characterized in that, A second annular pressing surface is formed at the junction of the third end and the fourth end. A portion of the second pressing surface is located inside the second stepped hole (130), and another portion is located inside the first stepped hole (120); The second pressing component is positioned in the space between the second pressing surface and the inner wall of the first stepped hole (120) and the second stepped hole (130).

9. The online testing high-pressure chamber for watertight connectors according to claim 8, characterized in that, The second pressing surface includes a second conical surface near the third end and a second transition surface near the fourth end. The second clamping assembly includes a second clamping ring and a second metal elastic ring. A portion of the inner sidewall of the second metal elastic ring fits snugly against the second conical surface, while another portion fits snugly against the second transition surface. The inner wall of the second clamping ring is in close contact with the second transition surface, and the two ends of the second clamping ring abut against the second pressure ring (320) and the second metal elastic ring, respectively.

10. The online testing high-pressure chamber for watertight connectors according to claim 1, characterized in that, The interior of the first sealing head (200) has a second channel (240) and a third channel (250) extending through both ends of the first sealing head (200) along the axial direction. The second channel (240) is used to install the wiring assembly (400), and the third channel (250) is used to install the pressure sensor.

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