Connector grounding structure

Abstract

To provide a connector grounding structure which can easily achieve space-saving.SOLUTION: A connector grounding structure 1 has: a connector 4 having a first connector part 2 and a second connector part 3 which can be connected to each other; and a grounding component 5. The first connector part 2 has: a protruding outer peripheral surface part 2a; and a first step surface 2b which extends to a radially outside from a base end of the outer peripheral surface part 2a. The second connector part 3 has: an inner peripheral surface part 3a which can be connected to the outer peripheral surface part 2a; and a second step surface 3b which extends to the radially outside from a tip end of the inner peripheral surface part 3a. The grounding component 5 has a conductive insertion part 5a into which the outer peripheral surface part 2a can be inserted. With the outer peripheral surface part 2a inserted into the insertion part 5a and connected to the inner peripheral surface part 3a not via the grounding component 5, the connector 4 can hold the insertion part 5a between the first step surface 2b and the second step surface 3b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a connector grounding structure. [Background technology]

[0002] BACKGROUND ART A connector grounding structure is known that includes a connector having a first connector portion and a second connector portion that are connectable to each other, and a grounding component (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 56-88626 Summary of the Invention [Problem to be solved by the invention]

[0004] The connector grounding structure described in Patent Document 1 is configured to connect the first connector portion and the second connector portion via a grounding component (i.e., by connecting the first connector portion and the grounding component, and by connecting the grounding component and the second connector portion), making it difficult to achieve space savings.

[0005] Therefore, an object of the present disclosure is to provide a connector grounding structure that can easily achieve space saving. [Means for solving the problem]

[0006] One aspect of the present disclosure is as follows.

[0007] [1] a connector having a first connector portion and a second connector portion connectable to each other; a grounding component; the first connector portion has a protruding outer circumferential surface portion and a first stepped surface extending radially outward from a base end of the outer circumferential surface portion, the second connector portion has an inner circumferential surface portion connectable to the outer circumferential surface portion and a second stepped surface extending radially outward from a tip of the inner circumferential surface portion, the grounding part has a conductive insertion part into which the outer circumferential surface part can be inserted, A connector grounding structure in which, when the outer surface portion is inserted into the insertion portion and connected to the inner surface portion without the grounding component, the connector can hold the insertion portion between the first step surface and the second step surface.

[0008] According to this configuration, the first connector portion and the second connector portion can be connected without using a grounding component, so space saving can be easily achieved.

[0009] [2] a washer into which the outer circumferential surface portion can be inserted, The connector grounding structure described in [1], wherein when the outer surface portion is inserted into the insertion portion and the washer and connected to the inner surface portion without the grounding component, the connector can hold the insertion portion and the washer between the first step surface and the second step surface.

[0010] According to this configuration, the gap between the first step surface and the second step surface when the first connector portion and the second connector portion are connected can be adjusted by the washer.

[0011] [3] A nut is provided on the outer peripheral surface portion, and The connector grounding structure described in [1] or [2], wherein the outer surface portion is inserted into the insertion portion, threaded onto the nut further forward than the insertion portion, and connected to the inner surface portion without the grounding component, and the connector can hold the insertion portion and the nut between the first step surface and the second step surface.

[0012] According to this configuration, even before the second connector portion is connected, the grounding part can be held to the first connector portion by the nut threaded onto the outer circumferential surface portion.

[0013] [4] The connector grounding structure according to any one of [1] to [3], wherein the connector connects an electronic device and a cable.

[0014] According to this configuration, the space required for the connector grounding structure is saved, which makes it possible to easily improve the degree of freedom in designing or adopting electronic devices.

[0015] [5] The connector grounding structure according to any one of [1] to [3], wherein the connector connects an antenna and a cable.

[0016] According to this configuration, the space required for the connector grounding structure is saved, which makes it possible to easily improve the degree of freedom in designing or adopting the antenna.

[0017] [6] the grounding part has a conductive mounting part integrally connected to the insertion part, The connector grounding structure according to [5], wherein the mounting portion is attachable to a conductive support structure that is to be grounded.

[0018] With this configuration, the grounding part can also serve as a support for the antenna.

[0019] [7] The connector grounding structure according to [5] or [6], wherein the insertion portion constitutes a ground plane of the antenna.

[0020] With this configuration, the insertion portion of the grounding component can also function as the ground plane of the antenna.

[0021] [8] The connector grounding structure according to any one of [1] to [7], wherein the grounding component constitutes a lightning arrester.

[0022] With this configuration, a lightning protection connector grounding structure that can easily achieve space saving can be realized. [Effects of the Invention]

[0023] According to the present disclosure, it is possible to provide a connector grounding structure that can easily achieve space saving. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a schematic diagram of a wireless communication device having a connector grounding structure according to a first embodiment. [Figure 2] FIG. 2(a) is a side view of the grounding component shown in FIG. 1, and FIG. 2(b) is a front view of the grounding component shown in FIG. [Figure 3] FIG. 2 is a front view of a modified example of the grounding component shown in FIG. [Figure 4] 2 is a schematic diagram showing the connector grounding structure shown in FIG. 1 in a state before the connector is connected. FIG. [Figure 5] 1 is a schematic diagram of a wireless communication device having a connector grounding structure according to a second embodiment in addition to the connector grounding structure according to the first embodiment. [Figure 6] 10 is a schematic diagram of a connector grounding structure according to a third embodiment. FIG. [Figure 7] FIG. 7 is a perspective view of the grounding component shown in FIG. 6. [Figure 8] 10(a) is a side view of a grounding component for a connector grounding structure according to a fourth embodiment, and FIG. 10(b) is a front view of the grounding component shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0026] As shown in Fig. 1, the connector grounding structure 1 according to the first embodiment includes a connector 4 having a first connector portion 2 and a second connector portion 3 connectable to each other, a grounding component 5 constituting a lightning arrester, a washer 6, and a nut 7. The connector grounding structure 1 according to the first embodiment can handle lightning surges. However, the connector grounding structure 1 is not limited to a configuration in which the grounding component 5 constitutes a lightning arrester.

[0027] In the connector grounding structure 1 according to the first embodiment, the connector 4 connects the electronic device 8 to one end of the cable 9. The connector grounding structure 1 is not limited to a structure in which the electronic device 8 and the cable 9 are connected by the connector 4. For example, the connector grounding structure 1 may be configured as a structure in which the antenna 10 and the cable 9 are connected by the connector 4, like the connector grounding structure 1 according to the second embodiment described below.

[0028] In the first embodiment, the electronic device 8 constitutes the main body of the wireless communication device 12, and the other end of the cable 9 is connected to the antenna 10 via an antenna lightning arrester 11 (for example, any commercially available product) (i.e., by connecting the other end of the cable 9 to the antenna lightning arrester 11 and connecting the antenna lightning arrester 11 to the antenna 10). In other words, Fig. 1 shows the wireless communication device 12 having the electronic device 8, cable 9, antenna lightning arrester 11, and antenna 10 that constitute the main body of the wireless communication device 12.

[0029] The connector grounding structure 1 is not limited to a structure in which an electronic device 8 constituting the main body of the wireless communication device 12 is connected to a cable 9 by a connector 4, but may also be a structure in which an electronic device 8 that is not constituting the main body of the wireless communication device 12 is connected to a cable 9 by a connector 4. The type of electronic device 8 is not particularly limited, but it may be, for example, a measuring device used in a plant or the like.

[0030] There is no particular limitation on the type of connector 4. For example, connector 4 is a coaxial connector such as an SMA (Sub Miniature Type A) connector or a BNC (Bayonet Neill Concelman) connector for connecting a coaxial cable as cable 9. Note that cable 9 is not limited to a coaxial cable, and connector 4 is not limited to a coaxial connector.

[0031] The first connector portion 2 has a protruding outer peripheral surface portion 2a and a first stepped surface 2b extending radially outward from the base end of the outer peripheral surface portion 2a. The second connector portion 3 has an inner peripheral surface portion 3a connectable to the outer peripheral surface portion 2a and a second stepped surface 3b extending radially outward from the tip end of the inner peripheral surface portion 3a. For example, the first connector portion 2 constitutes a jack, and the second connector portion 3 constitutes a plug.

[0032] The first connector unit 2 is provided integrally with the electronic device 8, and the second connector unit 3 is provided integrally with one end of the cable 9. However, this is not limited to this, and the first connector unit 2 may be provided integrally with one end of the cable 9, and the second connector unit 3 may be provided integrally with the electronic device 8.

[0033] As shown in FIGS. 2(a) and 2(b), the grounding component 5 has a conductive insertion portion 5a into which the outer peripheral surface portion 2a can be inserted. The insertion portion 5a is annular. The shape of the insertion portion 5a is not limited to annular, and it may be an annular shape other than annular, such as a rectangular annular shape. Furthermore, the insertion portion 5a may be C-shaped with open ends spaced apart by a width W that does not allow the outer peripheral surface portion 2a to pass through, as in the modified example shown in FIG. 3.

[0034] The size of the insertion portion 5a is not particularly limited. For example, the insertion portion 5a can be set to have a thickness T1 of about 1 mm, an inner diameter ID1 of about 6 mm, and an outer diameter OD1 of about 10 mm.

[0035] The grounding component 5 has a conductive protrusion 5b that protrudes radially outward from the insertion portion 5a and is used for connection to a grounding cable 13 (see FIG. 1). Note that the grounding component 5 is not limited to having the protrusion 5b, and may be configured, for example, so that the grounding cable 13 is directly connected to the insertion portion 5a. The grounding component 5 may also be configured to be grounded by a member other than the grounding cable 13.

[0036] 1, the outer peripheral surface portion 2a can be inserted into the washer 6. That is, the washer 6 has an opening into which the outer peripheral surface portion 2a can be inserted. The thickness, inner diameter, and outer diameter of the washer 6 can be set appropriately according to the size of the insertion portion 5a, etc.

[0037] The nut 7 can be screwed onto the outer peripheral surface portion 2a. That is, the nut 7 has an opening into which the outer peripheral surface portion 2a can be inserted, and the inner peripheral surface of the nut 7 can be screwed onto the outer peripheral surface portion 2a.

[0038] As shown in Figure 4, when the outer surface portion 2a is inserted into the insertion portion 5a and the washer 6 and is threaded onto the nut 7 further forward than the insertion portion 5a, the first connector portion 2 and the second connector portion 3 can be connected to or disconnected from each other.

[0039] As shown in Figure 1, when the outer surface portion 2a is inserted into the insertion portion 5a and the washer 6, is threaded onto the nut 7 further forward than the insertion portion 5a, and is connected to the inner surface portion 3a without the grounding component 5, the connector 4 can hold the insertion portion 5a, the washer 6, and the nut 7 between the first step surface 2b and the second step surface 3b.

[0040] According to this configuration using the washer 6, the gap between the first step surface 2b and the second step surface 3b when the first connector portion 2 and the second connector portion 3 are connected can be adjusted by the washer 6. Although the connector grounding structure 1 uses one washer 6 in this embodiment, it is not limited to this, and may be configured to use two or more washers 6, or may not use the washer 6.

[0041] Furthermore, according to the configuration using the nut 7 as described above, even before the second connector portion 3 is connected, the grounding component 5 can be held to the first connector portion 2 by the nut 7 threaded onto the outer peripheral surface portion 2a, as shown in Fig. 4. The connector grounding structure 1 uses one nut 7 in this embodiment, but is not limited to this, and may be configured to use two or more nuts 7, or may not use a nut 7 at all.

[0042] 1, the connector grounding structure 1 is configured such that the outer peripheral surface portion 2a is inserted into the insertion portion 5a, washer 6, and nut 7 in this order, but this is not limited to this. For example, the connector grounding structure 1 may be configured such that the outer peripheral surface portion 2a is inserted into the washer 6, insertion portion 5a, and nut 7 in this order, or the insertion portion 5a, nut 7, and washer 6 in this order, or the washer 6, nut 7, and insertion portion 5a in this order, or in some other order. However, from the viewpoint of holding the grounding component 5 to the first connector portion 2 with the nut 7 even before the second connector portion 3 is connected, it is preferable to configure the outer peripheral surface portion 2a to be inserted into the insertion portion 5 and then the nut 7 in this order.

[0043] The connector grounding structure 1 may be configured without using the washer 6 or the nut 7.

[0044] According to the connector grounding structure 1 of the first embodiment, the first connector portion 2 and the second connector portion 3 can be connected (preferably directly) without using the grounding component 5 (i.e., without connecting the first connector portion 2 to the grounding component 5 and then connecting the grounding component 5 to the second connector portion 3), so space saving can be easily achieved. Furthermore, according to the connector grounding structure 1 of this embodiment, the space saving of the connector grounding structure 1 can easily improve the degree of freedom in designing or adopting the electronic device 8. In particular, if the electronic device 8 has an insulating housing 8a, grounding via the housing 8a is not possible, so the connector grounding structure 1 of this embodiment is particularly suitable for electronic devices 8 that have an insulating housing 8a.

[0045] The connector grounding structure 1 may be configured as a structure in which an antenna 10 and a cable 9 are connected by a connector 4, as in the connector grounding structure 1 according to the second embodiment shown in Fig. 5. In the connector grounding structure 1 according to the second embodiment, the connector 4 connects the antenna 10 to the other end of the cable 9. The wireless communication device 12 shown in Fig. 5 has the connector grounding structure 1 according to the first embodiment described above, as well as the connector grounding structure 1 according to the second embodiment. According to the second embodiment, the space-saving connector grounding structure 1 can easily improve the degree of freedom in designing or adopting the antenna 10.

[0046] In the second embodiment, the first connector unit 2 is provided integrally with the other end of the cable 9, and the second connector unit 3 is provided integrally with the antenna 10. However, this is not limiting, and the first connector unit 2 may be provided integrally with the antenna 10, and the second connector unit 3 may be provided integrally with the other end of the cable 9.

[0047] The size of the insertion portion 5a is not particularly limited in the second embodiment either. For example, as in the first embodiment, the insertion portion 5a can be set to have a thickness T1 of about 1 mm, an inner diameter ID1 of about 6 mm, and an outer diameter OD1 of about 10 mm.

[0048] In the second embodiment, the connector grounding structure 1 is not limited to a configuration in which the grounding part 5 constitutes a lightning arrester.

[0049] When the connector grounding structure 1 is configured as a structure in which the antenna 10 and the cable 9 are connected by a connector 4 as in the second embodiment, it is also possible to make the grounding part 5 also serve as a support function for the antenna 10 as in the third embodiment shown in Figures 6 to 7.

[0050] In the third embodiment, the grounding component 5 has a conductive mounting portion 5c integrally connected to the insertion portion 5a, and the mounting portion can be attached to a conductive support structure 14 (e.g., a metal pole) to be grounded. In the third embodiment, the grounding component 5 has an L-shape as a whole in a side view, with the mounting portion 5c being provided at a right angle to the insertion portion 5a. However, the grounding component 5 is not limited to this L-shape configuration.

[0051] Furthermore, in the third embodiment, the grounding component 5 can be grounded by attaching the conductive mounting portion 5c to a conductive support structure 14 that is to be grounded. Therefore, there is no need to provide a conductive protrusion 5b (see FIGS. 2(a) to 2(b) and the like) for connection to the grounding cable 13.

[0052] Furthermore, when the connector grounding structure 1 is configured as a structure in which the antenna 10 and the cable 9 are connected by the connector 4 as in the second embodiment, the connector grounding structure 1 may be configured as in a fourth embodiment shown in Fig. 8 in which the insertion portion 5a forms the ground plane of the antenna 10. With this configuration, the insertion portion 5a of the grounding component 5 can also function as the ground plane of the antenna 10. The configuration of the fourth embodiment is particularly suitable when the antenna 10 is a monopole antenna, for example.

[0053] In the fourth embodiment, the insertion section 5a has an annular shape, and the outer diameter OD2 is set to λ / 2 or more so that the insertion section 5a forms the ground plane of the antenna 10. Here, λ represents the wavelength used. For example, the wavelength λ in the 2 GHz band (a frequency band ranging from 1920 to 2200 MHz) is approximately 15 cm, and in this case, the outer diameter OD2 of the insertion section 5a is approximately 7.5 cm or more. Note that the insertion section 5a may have an annular shape other than a circular shape as long as it can form the ground plane of the antenna 10.

[0054] The configuration of the insertion portion 5a of the fourth embodiment may be combined with the configuration of the third embodiment described above. In other words, the grounding component 5 may have a configuration including the insertion portion 5a of the fourth embodiment and the attachment portion 5c of the third embodiment.

[0055] The present disclosure is not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present disclosure.

[0056] Therefore, the connector grounding structure 1 of the above-mentioned embodiment can be modified in various ways as long as it is a connector grounding structure 1 that has a connector 4 having a first connector portion 2 and a second connector portion 3 that can be connected to each other, and a grounding component 5, wherein the first connector portion 2 has a protruding outer peripheral surface portion 2a and a first step surface 2b extending radially outward from the base end of the outer peripheral surface portion 2a, the second connector portion 3 has an inner peripheral surface portion 3a that can be connected to the outer peripheral surface portion 2a and a second step surface 3b extending radially outward from the tip of the inner peripheral surface portion 3a, the grounding component 5 has a conductive insertion portion 5a into which the outer peripheral surface portion 2a can be inserted, and when the outer peripheral surface portion 2a is inserted into the insertion portion 5a and connected to the inner peripheral surface portion 3a without the grounding component 5 being interposed, the connector 4 can hold the insertion portion 5a between the first step surface 2b and the second step surface 3b. [Explanation of symbols]

[0057] 1. Connector grounding structure 2 First connector part 2a Outer peripheral surface 2b 1st step surface 3 Second connector part 3a Inner peripheral surface 3b 2nd step surface 4 Connectors 5 Grounding parts 5a Insertion part 5b Protrusion 5c Mounting part 6 washers 7 Nuts 8 Electronic equipment 8a Case 9 Cable 10 Antennas 11 Lightning arrester for antennas 12 Wireless communication devices 13 Grounding cable 14 Support structures ID1 Inner diameter OD1, OD2 outer diameter T1 Thickness W width

Claims

1. a connector having a first connector portion and a second connector portion connectable to each other; a grounding component; the first connector portion has a protruding outer circumferential surface portion and a first stepped surface extending radially outward from a base end of the outer circumferential surface portion, the second connector portion has an inner circumferential surface portion connectable to the outer circumferential surface portion and a second stepped surface extending radially outward from a tip of the inner circumferential surface portion, the grounding part has a conductive insertion part into which the outer circumferential surface part can be inserted, the connector is capable of holding the insertion portion between the first step surface and the second step surface when the outer peripheral surface portion is inserted into the insertion portion and connected to the inner peripheral surface portion without the grounding component; The connector connects the antenna and the cable, the insert portion forms a ground plane of the antenna; A connector grounding structure in which the insertion portion has an annular shape and an outer diameter OD2 set to λ / 2 or more, where λ represents the wavelength used.

2. a washer into which the outer circumferential surface portion can be inserted, 2. The connector grounding structure of claim 1, wherein when the outer peripheral surface portion is inserted into the insertion portion and the washer and connected to the inner peripheral surface portion without the grounding component, the connector can hold the insertion portion and the washer between the first step surface and the second step surface.

3. A nut is provided on the outer peripheral surface portion, 2. The connector grounding structure of claim 1, wherein the outer surface portion is inserted into the insertion portion, threaded onto the nut further forward than the insertion portion, and connected to the inner surface portion without the grounding component, and the connector can hold the insertion portion and the nut between the first step surface and the second step surface.

4. the grounding part has a conductive mounting part integrally connected to the insertion part, 2. The connector grounding structure of claim 1, wherein the mounting portion is attachable to a grounded conductive support structure.

5. The connector grounding structure according to claim 1 , wherein the grounding part constitutes a lightning arrester.

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