connector

Abstract

A connector is provided that reliably and easily holds a die-cast component within a housing. The connector (10) includes a terminal (11), a die-cast component (13) surrounding the outer periphery of the terminal (11), a dielectric (12) disposed between the terminal (11) and the die-cast component (13), and a housing (14) for mounting the die-cast component (13). The die-cast component (13) has a locking protrusion (37), and the housing (14) has a locking recess (49) recessed in the mounting direction of the die-cast component (13). The locking protrusion (37) is pressed into the locking recess (49). A closed portion (53) is formed between the top portion of the locking protrusion (37) in the mounting direction and the inner end portion of the locking recess (49) in the mounting direction, isolating it from the outside.

Description

Technical Field

[0001] This invention relates to connectors. Background Technology

[0002] Patent Document 1 describes a connector for high-speed communication, comprising a terminal as an inner conductor, a die-cast member as an outer conductor, a dielectric disposed between the die-cast member and the terminal, and a housing for mounting the die-cast member. The die-cast member has a locking recess extending through in the mounting direction toward the housing. The housing has a locking protrusion that inserts into the locking recess. When inserted into the locking recess, the tip of the locking protrusion is flattened and enlarged. The die-cast member is held in place as a housing by the tip of the locking protrusion locking against the opening edge of the locking recess. Furthermore, technologies disclosed in Patent Documents 2-7 are also known as connector technologies. Existing technical documents Patent documents

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-109738 Patent Document 2: Japanese Patent Application Publication No. 2014-203538 Patent Document 3: Japanese Patent Application Publication No. 2014-203537 Patent Document 4: Japanese Patent Application Publication No. 2011-60451 Patent Document 5: Japanese Patent Application Publication No. 2006-31961 Patent Document 6: Japanese Patent Application Publication No. 2002-270281 Patent Document 7: Japanese Patent Application Publication No. 2002-260773 Summary of the Invention The problem that the invention aims to solve

[0004] In the above situation, a process of flattening the top of the locking protrusion is required, which increases the processing time. To address this, a configuration can be adopted where the locking protrusion is placed on the die-cast component, and the locking recess is placed on the housing. The die-cast component is held in the housing by pressing the locking protrusion into the locking recess. However, since the die-cast component is a cast body, the locking protrusion must have a simple structure. Furthermore, the locking protrusion scrapes the resin from the housing during the pressing process, posing a risk of resin flakes forming. Therefore, a structure is required to hold the resin flakes in the housing to prevent them from falling off.

[0005] Therefore, this disclosure aims to provide a connector that can reliably and easily hold a die-cast component in a housing. Solution for solving the problem

[0006] The connector disclosed herein comprises: a terminal; a die-cast member surrounding the outer periphery of the terminal; a dielectric body disposed between the terminal and the die-cast member; and a housing for mounting the die-cast member, the die-cast member having a locking protrusion, the housing having a locking recess recessed in the mounting direction of the die-cast member, the locking protrusion being pressed into the locking recess, and in the state where the die-cast member is mounted on the housing, a closed portion isolated from the outside is formed between the top end portion of the locking protrusion in the mounting direction and the inner end portion of the locking recess in the mounting direction. Invention Effects

[0007] According to this disclosure, a connector can be provided that reliably and easily retains a die-cast component in a housing. Attached Figure Description

[0008] Figure 1 This is an exploded perspective view of the connector according to this embodiment. Figure 2 It is a side sectional view showing the state in which the connector is engaged with the other connector. Figure 3 This is a rear view of a dielectric. Figure 4 This is a three-dimensional view of the die-cast component viewed from an angled upward and frontal perspective. Figure 5 This is the front view of the die-cast component. Figure 6 This is a three-dimensional view of the shell from an angled, upper rear perspective. Figure 7 This is the rear view of the casing. Figure 8 It is an enlarged cross-sectional view showing the locking protrusion pressed into the locking recess. Detailed Implementation

[0009] [Description of embodiments of this disclosure] First, the implementation methods of this disclosure are listed and explained. The connector disclosed herein, (1) The device comprises: a terminal; a die-cast member surrounding the outer periphery of the terminal; a dielectric material disposed between the terminal and the die-cast member; and a housing for mounting the die-cast member, the die-cast member having a locking protrusion, the housing having a locking recess recessed in the mounting direction of the die-cast member, the locking protrusion being pressed into the locking recess, and in the state where the die-cast member is mounted on the housing, a closed portion isolated from the outside is formed between the top end of the locking protrusion in the mounting direction and the inner end of the locking recess in the mounting direction.

[0010] The die-cast component is held in place by pressing its locking protrusion into its locking recess. Even if the locking protrusion scrapes resin off the housing during assembly, the resulting resin flakes are retained within the closed portion formed between the locking protrusion and the locking recess. Therefore, resin flakes can be easily prevented from falling to the outside without complicating the structure.

[0011] (2) Preferably, a pressing protrusion is formed in the locking protrusion extending in a direction intersecting the mounting direction, and the closing portion is formed on the inner side of the locking recess, which is closer to the mounting direction than the portion of the inner surface of the locking recess that is locked with the pressing protrusion.

[0012] In this way, the die-cast component is stably held in the housing by being pressed into the inner surface of the locking recess. In addition, the sealing portion is formed on the inner side of the locking recess, which is further inward than the part that is locked by the pressing protrusion, thereby ensuring a good seal.

[0013] (3) Preferably, the die-cast member has a cover portion on which the terminal is disposed inside, and a protrusion portion extending from the base end of the cover portion in a direction intersecting the mounting direction, wherein the locking protrusion portion is formed in such a way that it is connected to the front surface of the protrusion portion facing the mounting direction and the outer peripheral surface of the cover portion.

[0014] When the locking protrusion is formed in this way, the structure of the mold that forms the die-cast component will not be particularly complicated.

[0015] (4) Preferably, the housing has a back surface opposite to the front surface of the protrusion, and a through hole that opens on the back surface and on the inside of the cover, the locking recess communicating with the through hole and opening on the back surface of the housing.

[0016] When the locking recess is formed in this way, the structure of the mold that shapes the shell will not become particularly complicated.

[0017] (5) Preferably, ribs are formed on the outer peripheral surface of the cover portion on both sides of the locking protrusion, which contact the inner peripheral surface of the through hole of the housing.

[0018] When ribs are formed in this way, the holding force of the die-cast component relative to the shell can be increased, and the wobbling between the die-cast component and the shell can be suppressed.

[0019] [Details of the embodiments of this disclosure] The following is a reference to the appendix. Figure 1 Specific examples of embodiments of this disclosure will be described below. Furthermore, the invention is not limited to these examples, but is intended to include all modifications within the meaning and scope of the claims, as indicated by the claims.

[0020] In this embodiment, connector 10 is a substrate connector mounted on circuit board 100, such as... Figure 1 As shown, it includes a terminal 11, a dielectric 12, a die-cast component 13, and a housing 14. Figure 2 As shown, connector 10 engages with the counterpart connector 80. The counterpart connector 80 is a shielded connector that connects to the end of a cable 90 used for transmitting communication signals. Furthermore, in the following description, regarding the front-to-back direction, the faces of connector 10 and counterpart connector 80 that face each other at the start of engagement are considered the front side. The vertical direction is excluded... Figure 8 The vertical direction of all other figures is used as the reference.

[0021] <Partner Connector> like Figure 2 As shown, the counterpart connector 80 includes a counterpart terminal 81 serving as a male terminal, a counterpart dielectric 82 housing the counterpart terminal 81, an outer conductor 83 surrounding the counterpart dielectric 82, and a counterpart housing 84 fitted into the housing 14. The counterpart terminal 81 is connected to the wires 91 of the cable 90. The wires 91 are composed of a pair of sheathed wires, and two counterpart terminals 81 are provided corresponding to each wire 91. Furthermore, the counterpart terminal 81 is configured to be insulated from the outer conductor 83 by the counterpart dielectric 82. The outer conductor 83 is connected to the shielding 92 such as the braided wire of the cable 90. A receiving portion 85 is formed through the front-rear direction inside the counterpart housing 84. The receiving portion 85 houses a module 86 assembled from the counterpart terminal 81, the counterpart dielectric 82, and the outer conductor 83. In addition, a locking arm 87 that can elastically deform is formed on the upper surface of the counterpart housing 84.

[0022] <Terminal> Terminal 11 is made of a conductive metal plate, such as Figure 1 As shown, it is formed in an elongated manner. Terminal 11 has a mating connection portion 15, a substrate connection portion 16, and a connecting portion 17 disposed between the mating connection portion 15 and the substrate connection portion 16. The mating connection portion 15 extends in the front-rear direction, as shown... Figure 2 As shown, the rear portion is held by the dielectric 12, and the front portion is connected to the counterpart terminal 81. The connecting portion 17 and the substrate connecting portion 16 are arranged to be exposed behind the dielectric 12. The connecting portion 17 is formed in a manner that slopes backward and downward from the rear end of the counterpart connecting portion 15. The substrate connecting portion 16 extends backward from the lower end of the connecting portion 17 and is soldered to the conductive portion of the circuit board 100 for connection.

[0023] <Dielectric> The dielectric 12 is integrally formed into a block shape using an insulating synthetic resin material. The dielectric 12 is L-shaped in side view and has a terminal mounting portion 18 extending in the front-to-back direction and a terminal lead-out portion 19 connected to the rear end of the terminal mounting portion 18 and extending in the vertical direction. The terminal mounting portion 18 has a pair of left and right mounting holes 21. Each mounting hole 21 penetrates through the terminal mounting portion 18 in the front-to-back direction. The opposing terminal 81 is inserted into the mounting hole 21 from the rear. The rear portion of the opposing connection portion 15 is held in a pressed-in state into the mounting hole 21. Figure 1 As shown, fitting grooves 22 extending in the front-to-back direction are formed on the left and right sides of the dielectric 12. Figure 1 (Only one is shown in the figure). The fitting protrusion 33, described later, is inserted into the fitting groove 22 into the die-cast component 13 (see Figure 23). Figure 5 ).

[0024] like Figure 3 As shown, on the rear surface of the terminal lead-out portion 19, an opening is formed by a lead-out recess 23 and a pair of left and right extending recesses 24. The lead-out recess 23 extends in the left-right direction from the upper part of the terminal lead-out portion 19, so that each mounting hole 21 opens in the rearward-facing bottom surface. Each extending recess 24 extends downward from the left and right sides of the lead-out recess 23, and its lower end opens in the lower surface of the terminal lead-out portion 19. On the left and right sides of the extending recess 24, a plurality of retaining protrusions 25 are formed in a front-back direction. Each pair of retaining protrusions 25 is arranged on each of the left and right sides of the extending recess 24. The counterpart connection portion 15 of the terminal 11 is led out from the mounting hole 21 within the lead-out recess 23. The connecting portion 17 of the terminal 11 is arranged within the extending recess 24. The connecting portion 17 is positioned in the left-right direction by contacting each retaining protrusion 25. Figure 2 As shown, the rearward-facing bottom surface of the extended recess 24 is formed into an inclined surface along the inclination of the connecting portion 17.

[0025] <Die-cast components> The die-cast component 13 is a cast body, and in this embodiment, it is formed using zinc or a zinc alloy. For example... Figure 2 As shown, a dielectric 12 with a terminal 11 is disposed within the die-cast component 13. The die-cast component 13 is configured as a shielding member that suppresses noise intrusion into the terminal 11 from the outside and suppresses noise leakage from the terminal 11 to the outside. The die-cast component 13 does not have openings such as holes, thus ensuring good shielding performance.

[0026] Specifically, such as Figure 4 As shown, the die-cast component 13 has a surrounding portion 26 at the rear and a cover portion 27 at the front, with a protrusion 28 on the base end side of the cover portion 27 that connects to the surrounding portion 26. Figure 1As shown, the enclosure 26 is shaped like a door when viewed from the rear, and has a top wall 29 and a pair of side wall portions 31 that protrude downward from the left and right ends of the top wall 29. The front ends of the top wall 29 and each side wall portion 31 are connected to the rear surface of the protrusion 28.

[0027] like Figure 2 As shown, the top wall portion 29 and the side wall portion 31 are large enough to cover the connecting portion 17 and the substrate connecting portion 16 in the terminal 11, providing not only shielding but also preventing foreign objects from interfering with the substrate connecting portion 16 from the outside. Furthermore, the surrounding portion 26 has multiple mounting protrusions 32 protruding downwards from the lower end of each side wall portion 31. Each mounting protrusion 32 is cylindrical and is positioned and inserted into a corresponding mounting hole 110 in the circuit board 100.

[0028] The cover 27 is formed into a square tube shape with rounded corners, such as... Figure 2 As shown, the terminal mounting portion 18 of the dielectric 12 can be fitted into the rear part of the inner side. The front part of the counterpart connection portion 15 of the terminal 11 is configured to protrude into the cover portion 27. In addition, when the cover portion 27 is engaged with the counterpart connector 80, an outer conductor 83 is disposed on the front part of the inner side, and the outer conductor 83 is in conductive contact with the cover portion 27. On the inner peripheral surface of the cover portion 27, as shown... Figure 5 As shown, mating protrusions 33 are formed in pairs on the left and right sides. The mating protrusions 33 are pressed into the mating grooves 22 of the dielectric 12 and engage with them, holding the dielectric 12 in the die-cast component 13. Figure 4 As shown, a radially stepped portion 34 is formed at the rear of the outer peripheral surface of the cover portion 27, and a fitting peripheral surface 35 with a larger diameter than the front is formed behind the stepped portion 34. Figure 2 As shown, the fitting peripheral surface 35 of the cover 27 is configured to contact the inner peripheral surface of the through hole 47 of the housing 14, which will be described later.

[0029] like Figure 5 As shown, the protrusion 28 is formed in a rectangular plate shape in the main view, extending radially outward from the base end side of the cover 27. Figure 1 As shown, a pair of protrusions 36 are formed at intervals in the left-right direction on the rear surface of the protrusion 28. Each protrusion 36 extends in the vertical direction, with its lower end connected to the top wall portion 29 and its upper end reaching the upper edge of the protrusion 28. A conductive grounding member (not shown) is positioned between each protrusion 36. The die-cast member 13 is connected to the vehicle body via the grounding member (not shown).

[0030] The die-cast component 13 has a plurality of locking protrusions 37 protruding forward from the front surface of the protrusion 28. Each locking protrusion 37 is also connected to the mating peripheral surface 35 of the cover 27 along the front-rear direction. Specifically, each locking protrusion 37 is disposed at the left and right center portions of the upper and lower mating peripheral surfaces 35 of the cover 27 and at the upper and lower center portions of the left and right mating peripheral surfaces 35 of the cover 27. That is, each locking protrusion 37 is arranged at 90-degree intervals along the circumference when viewed from the front. Each locking protrusion 37 is inserted into and locked with each locking recess 49 of the housing 14 (described later).

[0031] like Figure 4 As shown, the locking protrusion 37 has a rectangular block-shaped convex main body 38, a pressing protrusion 39 extending from the front end of the convex main body 38 in a direction intersecting the front and rear directions, and a head detail 41 connected to the front ends of the convex main body 38 and the pressing protrusion 39 respectively.

[0032] The upper and lower locking protrusions 37 formed on the upper and lower fitting peripheral surfaces 35 of the cover 27 cause the pressing protrusions 39 to protrude to the left and right sides. The left and right locking protrusions 37 formed on the left and right fitting peripheral surfaces 35 of the cover 27 cause the pressing protrusions 39 to protrude to the upper and lower sides. The outer end faces of each locking protrusion 37 facing radially outward (the upper surface of the upper locking protrusion 37, the lower surface of the lower locking protrusion 37, the right side of the right locking protrusion 37, and the left side of the left locking protrusion 37) are flush connected without steps from the convex body 38 to the pressing protrusions 39. The three outer three surfaces of the head detail 41, excluding the front surface, are inclined in a way that narrows into a cone shape towards the front. The front surface of the head detail 41 is formed flat along the vertical and horizontal directions.

[0033] On the upper side of the cover portion 27, on the fitting peripheral surface 35, ribs 42 are formed on the left and right sides, separated by the locking protrusion 37. The ribs 42 extend in the front-rear direction, with their rear ends connected to the front surface of the protrusion 28, and their front ends located in front of the front end of the locking protrusion 37.

[0034] <Shell> The housing 14 is formed using an insulating synthetic resin material. For example... Figure 6 As shown, the housing 14 has a rectangular plate-shaped base wall 43 in rear view and a square cylindrical fitting portion 44 protruding forward from the base wall 43. Figure 2 As shown, the mating cylindrical portion 44 is fitted with the mating housing 84. A locking protrusion 45 is formed on the inner surface of the upper wall of the mating cylindrical portion 44. The mating connector 10 and the mating connector 80 are held in a mating state by the locking arm 87 of the mating housing 84 engaging with the locking protrusion 45.

[0035] A demolding hole 46 is formed in the base wall 43. The demolding hole 46 is caused by pulling out the mold from which the locking protrusion 45 is formed. Figure 6As shown, a through hole 47 is formed on the base wall 43, and below the demolding hole 46. Figure 2 As shown, the inner diameter of the through hole 47 is smaller than the inner diameter of the fitting cylinder portion 44, and the through hole 47 communicates with the fitting cylinder portion 44. The cover portion 27 of the die-cast component 13 is inserted into the through hole 47 in the base wall 43. The cross-sectional shape of the inner circumferential surface of the through hole 47 corresponds to the cross-sectional shape of the fitting circumferential surface 35 of the cover portion 27. (As shown...) Figure 6 As shown, a main inclined portion 48 is formed at the rear of the inner peripheral surface of the through hole 47, which expands toward the rear surface 54 that becomes the base wall 43.

[0036] Additionally, multiple locking recesses 49 are formed on the base wall 43. Each locking recess 49 has a rectangular cross-section, extends in the front-rear direction, opens at its rear end on the back side 54 of the base wall 43, and is closed at its front end on the inner side of the base wall 43. Figure 6 and Figure 7 As shown, the locking recesses 49 are arranged at 90-degree intervals along the circumference when viewed from the rear. The inner end of each locking recess 49 facing radially inward opens into the through hole 47. Specifically, each locking recess 49 is disposed at the left and right center portions of the upper and lower inner surfaces of the through hole 47 and at the upper and lower center portions of the left and right inner surfaces of the through hole 47. The rear portion of each locking recess 49 is formed in the main inclined portion 48. A secondary inclined portion 51 is formed at the rear end of the inner surface of each locking recess 49, expanding toward the back surface 54 of the base wall 43. The front-to-back length of the secondary inclined portion 51 is sufficiently smaller than the front-to-back length of the main inclined portion 48.

[0037] <Assembly structure of die-cast components and shell> The cover 27 of the die-cast component 13 is inserted into the through hole 47 of the housing 14 from the rear. In the final stage of the insertion process, the fitting peripheral surface 35 of the cover 27 is configured to contact the inner peripheral surface of the through hole 47, and each rib 42 is in close contact with the inner peripheral surface of the through hole 47. Additionally, in the final stage of the insertion process, the head tip 41 is guided in by the secondary inclined portion 51, and the locking protrusion 37 is inserted into the locking recess 49 from the rear. The assembly of the die-cast component 13 stops as the front surface of the protrusion 28 of the die-cast component 13 faces and abuts against the back surface 54 of the base wall 43. The demolding hole 46 of the base wall 43 is blocked by the protrusion 28 (see reference). Figure 2 The portion of the cover 27 that is forward of the mating circumferential surface 35 protrudes into the mating cylindrical portion 44 of the housing 14, and is configured to contact the outer conductor 83 when mated with the other connector 80.

[0038] Additionally, when the locking protrusion 37 is properly inserted into the locking recess 49, as... Figure 8 As shown, the press-in protrusion 39 contacts the two opposing surfaces 52 of the locking recess 49 in a press-in state. Thus, the locking protrusion 37 and the locking recess 49 are locked together, and the die-cast component 13 remains in an anti-disengagement state relative to the housing 14.

[0039] Furthermore, with the locking protrusion 37 properly inserted into the locking recess 49, a sealing portion 53, forming a closed space, is formed within the locking recess 49 between the pressing protrusion 39 of the locking protrusion 37 and the inner end side of the locking recess 49, which serves as the front end side. The sealing portion 53 isolates the space from the outside in a manner that restricts the entry and exit of foreign objects. Specifically, the sealing portion 53 is defined by the four sides constituting the inner surface of the locking recess 49, the head detail 41 of the locking protrusion 37, and the fitting peripheral surface 35 of the cover portion 27, forming a sealed state.

[0040] During the insertion of the locking protrusion 37 into the locking recess 49, the protrusion 39 may sometimes shave off the resin on the opposing sides 52 of the locking recess 49, creating a resin sheet. However, in this embodiment, the resin sheet is pressed into the inner end of the locking recess 49, enters the sealing portion 53, and remains there. Therefore, a relatively simple structure can reliably prevent the resin sheet from falling onto the circuit board 100. Furthermore, the sealing portion 53 only needs to isolate the outside to a degree that restricts the entry and exit of foreign objects; it does not need to be completely isolated from the outside.

[0041] In particular, in this embodiment, because the press-in protrusion 39 engages with the inner surface of the locking recess 49, the die-cast member 13 is stably held in the housing 14. Furthermore, by forming the closure portion 53 on the inner side of the locking recess 49, which is further inward than the portion engaging with the press-in protrusion 39, the sealing state of the closure portion 53 can be maintained more effectively.

[0042] Furthermore, because the locking protrusion 37 is formed in a manner that connects to the front surface of the protrusion 28 and the fitting peripheral surface 35 of the cover 27, the structure of the mold for forming the die-cast component 13 is not particularly complicated. Moreover, because the locking recess 49 communicates with the through hole 47 of the base wall 43 and is formed with an opening on the back side 54 of the base wall 43, the structure of the mold for forming the housing 14 is not particularly complicated.

[0043] Furthermore, ribs 42 are formed on both sides of the outer peripheral surface of the cover 27, separated by the locking protrusion 37. The ribs 42 contact the inner peripheral surface of the through hole 47, thereby improving the holding force of the die-cast member 13 relative to the housing 14 and suppressing the shaking between the die-cast member 13 and the housing 14.

[0044] [Other embodiments of this disclosure] The embodiments disclosed herein should be considered illustrative in all respects and not restrictive. In another embodiment, the locking protrusion may not have a pressing protrusion, but rather be shaped to be pressed into the locking recess as a whole. In other embodiments, the closure may not be a space, but rather formed between the surfaces of the top of the locking protrusion and the inner end of the locking recess that are in contact with each other. As another implementation, ribs may not be formed on the outer peripheral surface of the cover. As another implementation, the die-cast component may also be made of aluminum die-casting, which is composed of aluminum alloy or the like. Explanation of reference numerals in the attached figures

[0045] 10… connectors 11…terminal 12…Dielectric 13…Die-cast components 14…shell 15… Opposite connecting part 16…Substrate connection portion 17…connecting part 18…Terminal mounting section 19…Terminal Lead-out Section 21…Mounting holes 22…fitting groove 23... Lead out the concave part 24…extended recess 25…Keep the protrusion 26… Encirclement 27…covering 28…protruding part 29…top wall part 31…Side wall portion 32…Assembly protrusion 33…fitting protrusion 34…Step section 35…fitting peripheral surface 36…protruding part 37…Isolation protrusion 38…convex main body 39… Press in protrusion 41…Head Details 42…ribs 43…base wall 44…fitting cylinder 45… Locking protrusion 46… Demolding hole 47… Through hole 48…Main Inclined Section 49…Latching recess 51…Secondary inclined section 52… Opposite sides 53… Enclosed section 54…back 80… Partner Connector 81…the other terminal 82…Other dielectric material 83…Outer conductor 84… Opposite shell 85…Storage Department 86… module 87…locking arm 90… cable 91…electric wire 92… shielding body 100…Circuit board 110… Assembly hole

Claims

1. A connector comprising: terminal; A die-cast component surrounds the outer periphery of the terminal; A dielectric material is disposed between the terminal and the die-cast member; and The housing, on which the die-cast component is mounted, The die-cast component has a locking protrusion. The housing has a locking recess recessed in the mounting direction of the die-cast component, and the locking protrusion is pressed into the locking recess. With the die-cast component installed in the housing, a closed portion isolated from the outside is formed between the top end of the locking protrusion in the mounting direction and the inner end of the locking recess in the mounting direction. The die-cast component has a cover portion on the inside where the terminal is disposed, and a protrusion portion extending from the base end of the cover portion in a direction intersecting the mounting direction. The locking protrusion is formed in such a way that it is connected to the front surface of the protrusion facing the mounting direction and the outer peripheral surface of the cover.

2. The connector according to claim 1, wherein, A press-in protrusion extending in a direction intersecting the mounting direction is formed on the locking protrusion. The closure portion is formed on the inner side of the locking recess, on the side further in the installation direction than the portion of the inner surface of the locking recess that is locked by the pressing protrusion.

3. The connector according to claim 1, wherein, The housing has a back surface opposite the front surface of the protrusion, and a through hole that opens on the back surface and on the inside of the cover. The locking recess communicates with the through hole and has an opening on the back side of the housing.

4. The connector according to claim 3, wherein, On the outer peripheral surface of the cover, ribs are formed on both sides of the locking protrusion that contact the inner peripheral surface of the through hole of the housing.

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