Quick connector for sensor

Abstract

The utility model relates to a quick connector for a sensor, which belongs to the field of electronic devices and comprises a male joint and a female joint. The male connector comprises a first inner core and a first shell, and the female connector comprises a second inner core and a second shell. When the male connector is connected with the female connector, the first connecting end and the second connecting end can be matched in an inserted mode, and the first inner core and the second inner core can be completely wrapped by the first shell and the second shell. The connector provided by the utility model can avoid the problem of wiring errors, and improves the wiring yield. And meanwhile, good anti-noise and anti-electromagnetic radiation effects are achieved.

Description

Technical Field

[0001] The utility model relates to the field of electronic devices, and particularly relates to a quick-connect connector for a sensor. Background Art

[0002] With the development of technology, more and more fields involve cryophysics. For example, in the scientific research field, from small-scale dilution refrigerators to large-scale accelerator projects, and in the civilian field such as medical nuclear magnetic resonance, there are traces of cryophysics.

[0003] Temperature sensors are important components in the cryogenic field. In order to accurately reflect the temperature of the system to be measured, the standard four-wire method of measurement is widely used. Taking a resistive temperature measuring device as an example, an excitation signal (I+, I-) is applied to the sensor through a pair of twisted pairs, and another pair of twisted pairs measures the voltage (V+, V-) across the sensor, so as to accurately calculate the resistance, and the temperature of the system to be measured is detected through the resistance-temperature curve of the device.

[0004] For dilution refrigerators, large-scale accelerators, etc., the cable connections of the temperature sensors at their low-temperature ends are usually made by direct soldering or through connectors without gender distinction.

[0005] When a large number of sensors are used, such as on a large-scale accelerator, thousands of sensors are required. The direct soldering method is extremely unfriendly to sensor replacement and maintenance. If connectors without gender distinction are used, it is easy to connect two input terminals together, increasing the wiring error rate, which will have a certain impact on the smooth progress of the entire project. In addition, the existing connectors have poor anti-noise performance, which easily affects the detection accuracy of electronic devices such as sensors. Content of the Utility Model

[0006] The present utility model is proposed to alleviate or solve at least one aspect or at least one point of the above problems.

[0007] A quick-connect connector for a sensor of the present utility model includes: a male connector and a female connector; the male connector includes a first inner core and a first housing, and the first inner core includes a first body and a first connection end; the first body is fixed inside the first housing, and at least part of the first connection end protrudes from the end of the first housing;

[0008] The female connector includes a second inner core and a second housing, and the second inner core includes a second body and a second connection end; the second body is fixed inside the second housing, and the second connection end is located inside the second housing;

[0009] The first housing and the second housing are electromagnetic radiation-resistant housings;

[0010] When the male connector is connected to the female connector, the first connection end and the second connection end are in plug-in fit, and the first housing and the second housing can completely cover the first inner core and the second inner core.

[0011] When the male connector is connected to the female connector, the end face of the first housing is in contact with the end face of the second housing.

[0012] Preferably, the second inner core is completely buried in the second housing; the second connection end of the first inner core protrudes entirely from the end of the first housing.

[0013] Preferably, the first connection end includes a first metal pin and a first jack; the second connection end includes a second metal pin and a second jack.

[0014] Preferably, the first jack is located on the first socket, and the first socket protrudes from the first body; the second jack is located on the second socket, and the second socket protrudes from the second body.

[0015] Preferably, when the first connection end and the second connection end are in plug-in fit, the first metal pin and the second jack are in a tight fit, and the second metal pin and the first jack are in a tight fit.

[0016] Preferably, there is also a first fixing portion on the outer periphery of the first body, and the first fixing portion is arranged in a circle along the circumferential direction of the outer periphery; there is also a second fixing portion on the outer periphery of the second body, and the second fixing portion is arranged in a circle along the circumferential direction of the outer periphery.

[0017] Preferably, there is also a first extension portion on the outer periphery of the first body, and the first extension portion extends along the axial direction of the first body from one end of the first fixing portion; there is also a second extension portion on the outer periphery of the second body, and the second extension portion extends along the axial direction of the second body from one end of the second fixing portion.

[0018] Preferably, the male connector further includes a first wiring terminal led out from the first body, a first plug for blocking the first housing, and a first wire hole for the cable to pass through is formed inside the first plug; and / or, the female connector further includes a second wiring terminal led out from the second body, a second plug for blocking the second housing, and a second wire hole for the cable to pass through is formed inside the second plug.

[0019] Preferably, the diameters of the first housing and the second housing are both less than 10 mm.

[0020] The quick-connect connector of the present utility model adopts a structure that is easy to distinguish, thus avoiding the problem of wiring errors and improving the wiring yield. For better noise resistance, the connector of the present invention adopts an electromagnetic radiation-resistant housing, such as a metal housing, and preferably adopts a fully enclosed structure of a stainless steel metal shell, so as to play a role in electromagnetic radiation resistance and noise resistance, thereby significantly improving the detection accuracy. Description of the Drawings

[0021] Figure 1Stereoscopic schematic diagram of a quick-connect connector according to an exemplary embodiment of the present utility model.

[0022] Figure 2 Stereoscopic schematic diagram of a male connector according to an exemplary embodiment of the present utility model.

[0023] Figure 3 Front view schematic diagram of a male connector according to an exemplary embodiment of the present utility model.

[0024] Figure 4 Top view schematic diagram of a male connector according to an exemplary embodiment of the present utility model.

[0025] Figure 5 is Figure 4 A-A sectional view schematic diagram of

[0026] Figure 6 Half-sectional stereoscopic schematic diagram of a male connector according to an exemplary embodiment of the present utility model.

[0027] Figure 7 Stereoscopic schematic diagram of the first rubber core of a male connector according to an exemplary embodiment of the present utility model.

[0028] Figure 8 Stereoscopic schematic diagram of a female connector according to an exemplary embodiment of the present utility model.

[0029] Figure 9 Front view schematic diagram of a female connector according to an exemplary embodiment of the present utility model.

[0030] Figure 10 Top view schematic diagram of a female connector according to an exemplary embodiment of the present utility model.

[0031] Figure 11 is Figure 10 B-B sectional view schematic diagram of

[0032] Figure 12 Half-sectional stereoscopic schematic diagram of a female connector according to an exemplary embodiment of the present utility model.

[0033] Figure 13 Stereoscopic schematic diagram of the second rubber core of a female connector according to an exemplary embodiment of the present utility model.

[0034] Figure 14 Stereoscopic schematic diagram of the mating of a male connector and a female connector according to an exemplary embodiment of the present utility model.

[0035] Figure 15 Top view schematic diagram of the mating of a male connector and a female connector according to an exemplary embodiment of the present utility model.

[0036] Figure 16 isFigure 15 Schematic perspective view of the C-C cross-section

[0037] Figure 17 is Figure 15 Schematic perspective view of the D-D cross-section

[0038] Wherein: 10 - male connector, 20 - female connector, 30 - first external wire, 40 - second external wire;

[0039] 11 - first housing, 12 - first body, 13 - first metal pin, 14 - first jack, 15 - first socket, 16 - first fixing part, 17 - first extension part, 18 - first plug, 19 - first wiring terminal;

[0040] 21 - second housing, 22 - second body, 23 - second metal pin, 24 - second jack, 25 - second socket, 26 - second fixing part, 27 - second extension part, 28 - second plug, 29 - second wiring terminal. Detailed implementation mode

[0041] The following description of the embodiments of the present invention with reference to the drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation on the present invention. In the present invention, the same reference numerals represent the same or similar components.

[0042] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. On the contrary, the examples provided herein are only to illustrate some of the many feasible ways of implementing the methods, devices, and / or systems described herein, and many other feasible ways will be apparent after understanding the disclosure of the present invention.

[0043] Although terms such as "first", "second", and "third" may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. On the contrary, these terms are only used to distinguish one component, assembly, region, layer, or part from another.

[0044] In the specification, when an element (such as a layer, region, or substrate) is described as "on", "connected to", or "coupled to" another element, the element can be directly "on", directly "connected to", or "coupled to" another element, or there may be one or more other elements therebetween. On the contrary, when an element is described as "directly on", "directly connected to", or "directly coupled to" another element, there may be no other elements therebetween.

[0045] The terms used herein are for describing various examples only and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including" and "having" specify the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0046] In order to enable those skilled in the art to use the content of the present utility model, the following exemplary embodiments may be given in combination with specific application scenarios, parameters of specific systems, devices and components, and specific connection methods hereinafter. However, for those skilled in the art, these embodiments are only examples, and the general principles defined here can be applied to other embodiments and application scenarios without departing from the spirit and scope of the present utility model.

[0047] According to an exemplary embodiment of the present utility model: as Figure 1-17 shown, a sensor quick-connect connector includes: a male connector 10 and a female connector 20. The male connector 10 is connected to other components through a first external wire 30, and the female connector 20 is connected to other components through a second external wire 40.

[0048] As Figure 2-7 shown, the male connector 10 includes a first inner core and a first housing 11. The first inner core includes a first body 12 and a first connection end; the first body 12 is fixed inside the first housing 11, and at least part of the first connection end protrudes from the end of the first housing 11. The first connection end includes a first metal pin 13 and a first jack 14. The first jack 14 is located in a first socket 15. Exemplarily, the number of the first jacks 14 and the first metal pins 13 is two each.

[0049] As Figure 2 、 5 shown, the connection part between the first body 12 and the first connection end is flush with the end face of the first housing 11. As Figure 6 、 7 shown, there are also a first fixing part 16 and a first extending part 17 on the outer periphery of the first body 12. The first fixing part 16 is arranged in a circle along the circumferential direction of the outer periphery, and the first extending part 17 extends along the axial direction of the first body 12 from one end of the first fixing part 16.

[0050] There is a tight fit or an interference fit between the outer periphery of the first fixing part 16 and the inner periphery of the first housing 11, so that the first inner core can be firmly fixed inside the first housing 11 through the first fixing part 16. The first extending part 17 can play a stable guiding role when the two are fitted.

[0051] In addition, as Figure 1 、 2As shown in FIGS. 5, the male connector 10 further includes a first terminal 19 extending from the first body 12. Optionally, a low-temperature epoxy resin adhesive is filled between the end of the first terminal 19 of the first inner core and the first housing 11 for sealing the first housing 11. Through the above filling, a first plug 18 for sealing the first housing 11 is formed, and a first wire hole for the cable to pass through is formed inside the first plug 18. Figure 5 Only a part of the epoxy resin is schematically shown in the figure. Actually, the epoxy resin fills the gap between the end of the first terminal 19 of the first inner core and the first housing 11.

[0052] As Figure 1 , 8 -13 show, the female connector 20 includes a second inner core and a second housing 21. The second inner core includes a second body 22 and a second connection end; the second body 22 is fixed inside the second housing 21, and the second connection end is located inside the second housing 21. Optionally, as Figure 8-13 shown, the second inner core is buried in the second housing 21.

[0053] The second connection end includes a second metal pin 23 and a second socket 24. The second socket 24 is located inside the second socket 25. Exemplarily, the numbers of the second socket 24 and the second metal pin 23 are both two.

[0054] As Figure 8 , 11 shown, the end face of the second connection end is flush with the end face of the second housing 21. As Figure 12 , 13 shown, there are also a second fixing portion 26 and a second extending portion 27 on the outer periphery of the second body 22. The second fixing portion 26 is arranged in a circle along the circumferential direction of the outer periphery, and the second extending portion 27 extends along the axial direction of the second body 22 from one end of the second fixing portion 26.

[0055] The outer periphery of the second fixing portion 26 and the inner periphery of the second housing 21 are in tight fit or interference fit, so that the second inner core can be firmly fixed inside the second housing 21 through the second fixing portion 26. The second extending portion 27 can play a stable guiding role during their cooperation.

[0056] In addition, as Figure 1 , 8 and 11 show, the female connector 20 further includes a second terminal 29 extending from the second body 22. Optionally, a low-temperature epoxy resin adhesive is filled between the end of the second terminal 29 of the second inner core and the second housing 21 for sealing the second housing 21. Through the above filling, a second plug 28 for sealing the second housing 21 is formed, and a second wire hole for the cable to pass through is formed inside the second plug 28. Figure 5Only a part of the epoxy resin is schematically shown. In fact, the epoxy resin fills the gap between the end of the second terminal 29 of the second inner core and the second housing 21.

[0057] As Figure 2 , 8 and shown in FIGS. 14-17, when the male connector 10 is connected to the female connector 20, the first connection end and the second connection end can be plugged and matched, and the first housing 11 and the second housing 21 can completely cover the first inner core and the second inner core. Preferably, the end face of the first housing 11 is in a fitting state with the end face of the second housing 21.

[0058] As Figure 7 , 13 shown, for the quick-connect connector of the present utility model, the first inner core is the first rubber core, and the second inner core is the second rubber core. As Figure 2 , 8 and shown in FIGS. 14-17, both the first housing 11 and the second housing 21 are electromagnetic shielding housings / anti-electromagnetic radiation housings made of metal materials. Such as a metal housing or a stainless steel housing, so as to play a role in anti-electromagnetic radiation and anti-noise, thereby significantly improving the detection accuracy. The channels to be connected can be laser engraved and silk-screened on the stainless steel housing surfaces of the two to mark the wiring sequence and prevent wrong connection.

[0059] As Figure 2-14 shown, the second rubber core is buried in the second housing 21, and the first joint part of the first rubber core, that is, the first connection end, is completely exposed. Thus, it is convenient to distinguish between the female connector 20 and the male connector 10.

[0060] As Figure 2 , 8 and shown in FIGS. 14-17, the first connection end includes a first metal pin 13 and a first socket 14; the second connection end includes a second metal pin 23 and a second socket 24. The first socket 14 is located on the first socket 15, and the first socket 15 protrudes from the first body 12. The second socket 24 is located on the second socket 25; the second socket 25 protrudes from the second body 22. The first metal pin 13 and the second socket 24 are designed with a tight fit, and the second metal pin 23 and the first socket 14 are designed with a tight fit, thereby ensuring good electrical contact at low temperatures. The above-mentioned tight fit can be an interference fit.

[0061] As Figure 2 , 8 shown, the diameters of both the first housing 11 and the second housing 21 are less than 10 mm. Optionally, the diameters of the first housing 11 and the second housing 21 are the same. Through its small-size design and the design of the internal lightweight rubber core, its weight is extremely small, and it can be conveniently suspended without causing the interface to fall off.

[0062] As Figure 14-17As shown, after the interfaces of the two are tightly fitted, the stainless-steel shells of the two can completely wrap the first rubber core and the second rubber core, thus playing a role in shielding electromagnetic radiation.

[0063] The utility model can be used in dilution refrigerators and other vacuum and low-temperature devices. The first rubber core and the second rubber core are made of low-temperature-resistant insulating rubber cores.

[0064] Such as Figure 2 、 6 As shown in Figures 8 and 12, both the first socket 15 and the second socket 25 are semi-cylindrical structures with a semi-circular cross-section.

[0065] In the actual use process, as Figure 1-9 shown, it is agreed that the M end, i.e., the male connector 10, is connected to the sensor, and the F end, i.e., the female connector 20, is connected to the penetrator of the vacuum device or other devices (such as an aviation socket), which is the necessary interface for the excitation and acquisition of signals of the test device. Thus, during the wiring process of dozens or even hundreds or thousands of wires, the interface can be very prominently distinguished whether it is connected to the sensor or the penetrator, preventing misconnection.

[0066] Usually, the application scenario of the sensor requires a 4-channel structure. Therefore, there are two first jacks 14 and two second jacks 24, and there are also two first metal pins 13 and two second metal pins 23. During the actual manufacturing process, the area between the first shell 11, the second shell 21 and the rubber core is filled with low-temperature epoxy resin glue. The blank areas inside the first plug 18 and the second plug 28 are made of low-temperature epoxy resin glue, which plays a role in fixing the rubber core and heat conduction.

[0067] The quick-connect connector of the utility model has at least the following beneficial effects:

[0068] (1) The connector has a small size, improving the space utilization rate;

[0069] (2) The mating part of the connector adopts a fully wrapped stainless-steel design, playing a role in shielding electromagnetic radiation;

[0070] (3) The differential design of the male and female interfaces prevents misconnection, improving the wiring efficiency and success rate.

[0071] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be changed and combined with elements without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-connect connector for a sensor, comprising: Male connector and female connector; characterized in that: the male connector includes a first inner core and a first housing, and the first inner core includes a first body and a first connection end; the first body is fixed inside the first housing, and the first connection end at least partially protrudes from the end of the first housing; The female connector includes a second inner core and a second housing, and the second inner core includes a second body and a second connection end; the second body is fixed inside the second housing, and the second connection end is located inside the second housing; The first housing and the second housing are electromagnetic radiation-resistant housings; When the male connector and the female connector are connected, the first connection end and the second connection end are in plug-in fit, and the first housing and the second housing can completely cover the first inner core and the second inner core; When the male connector and the female connector are connected, the end face of the first housing and the end face of the second housing are in a fitting state.

2. The connector according to claim 1, characterized in that: The second inner core is completely buried in the second housing; the second connection end of the first inner core completely protrudes from the end of the first housing.

3. The connector according to claim 1, wherein: The first connection end includes a first metal pin and a first jack; the second connection end includes a second metal pin and a second jack.

4. The connector according to claim 3, characterized in that: The first jack is located on the first socket, and the first socket protrudes from the first body; the second jack is located on the second socket, and the second socket protrudes from the second body.

5. The connector according to claim 4, characterized in that: When the first connection end and the second connection end are in plug-in fit, the first metal pin and the second jack are in a tight fit, and the second metal pin and the first jack are in a tight fit.

6. The connector according to claim 1, characterized in that: There is also a first fixing portion on the outer periphery of the first body, and the first fixing portion is arranged in a circle along the circumferential direction of the outer periphery; there is also a second fixing portion on the outer periphery of the second body, and the second fixing portion is arranged in a circle along the circumferential direction of the outer periphery.

7. The connector according to claim 6, wherein: There is also a first extension portion on the outer periphery of the first body, and the first extension portion extends along the axial direction of the first body from one end of the first fixing portion; there is also a second extension portion on the outer periphery of the second body, and the second extension portion extends along the axial direction of the second body from one end of the second fixing portion.

8. The connector according to claim 1, characterized in that: The male connector further includes a first wiring end led out from the first body, a first plug for plugging the first housing, and a first wire hole for the cable to pass through is formed inside the first plug; and / or, the female connector further includes a second wiring end led out from the second body, a second plug for plugging the second housing, and a second wire hole for the cable to pass through is formed inside the second plug.

9. The connector according to any one of claims 1-8, characterized in that: The diameters of the first housing and the second housing are both less than 10 mm.

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