Automobile wire harness terminal resistor

Abstract

The utility model relates to an automobile wire harness terminal resistor, which comprises a shell, a fixed seat, two metal terminals and a locking piece, the shell is provided with a cavity with an opening on one side, and a stopping part is arranged in the cavity; the fixing base is installed in the cavity, the inner side of the fixing base abuts against the blocking part, and the fixing base and the shell are enclosed to form a closed installation cavity; the two metal terminals are arranged on the fixed seat at intervals, and one end, located in the mounting cavity, of each metal terminal is connected with a resistor; the locking piece is movably installed on the shell in the direction close to and away from the cavity, and the locking piece is used for stretching into the cavity to abut against the outer side of the fixing base so as to fix the fixing base. The device is convenient to mount and dismount, and is beneficial to later dismounting and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile wiring harness terminal resistor. Background Art

[0002] The element that blocks the flow of current in the circuit is called a resistor (abbreviated as resistor). There are many types of resistors, usually fixed resistors, variable resistors, sensitive resistors, resistor arrays, etc. Resistors are one of the most used basic components in automotive circuits, and the quality has a great impact on the stability of circuit operation. The main purpose of automotive resistors is to stabilize and adjust the current and voltage in the circuit, and secondly, they are used as shunts, voltage dividers and loads.

[0003] Terminal resistance refers to the resistance connected in parallel on a pair of communication lines at both ends of a linear network (the two communication ports farthest apart). According to the transmission line theory, terminal resistance can absorb reflected waves on the network and effectively enhance signal strength. The value of two terminal resistances connected in parallel should be basically equal to the characteristic impedance of the transmission line at the communication frequency. Its terminal matching resistance value depends on the impedance characteristics of the cable and has nothing to do with the length of the cable. RS-485 / RS-422 generally uses twisted pair (shielded or unshielded) for connection, and the terminal resistance is generally between 100 and 140Ω, with a typical value of 120Ω. In actual configuration, a terminal resistor is connected to each of the two terminal nodes of the cable, namely the nearest end and the farthest end, while the node in the middle cannot be connected to the terminal resistor, otherwise communication errors will occur.

[0004] Patent CN217740281U discloses a terminal resistor for automotive wiring harness, comprising a housing, a terminal fixing seat, a metal terminal and a resistor; the terminal fixing seat is installed inside the housing; the metal terminal is provided in two pieces, the two metal terminals are installed in parallel on the terminal fixing seat, the heads of the two metal terminals are gold-plated, and are respectively connected to the two ends of the resistor; the resistor and the metal terminal are connected by mechanical crimping.

[0005] The housing and the terminal fixing seat in the above-mentioned prior art are fixed by a clamping structure. Although the clamping structure is easy to install, it has a one-way movement and is difficult to disassemble, which is not conducive to later disassembly and maintenance. Utility Model Content

[0006] In view of this, it is necessary to provide an automotive wiring harness terminal resistor to solve the technical problem that the shell and the terminal fixing seat are fixed by a clip-on structure in the prior art. However, although the clip-on structure is easy to install, the clip-on structure is a unidirectional movement, which makes disassembly more difficult and is not conducive to later disassembly and maintenance.

[0007] The utility model provides a terminal resistor for an automobile wiring harness, which comprises:

[0008] The housing is provided with a cavity with an opening on one side, and a stopper is provided in the cavity;

[0009] A fixing seat is installed in the cavity, the inner side of the fixing seat abuts against the stopper, and the fixing seat and the shell are enclosed to form a closed installation cavity;

[0010] Two metal terminals are arranged at intervals on the fixing seat, and one end of the two metal terminals located in the installation cavity is connected to a resistor; and

[0011] A locking member is movably mounted on the housing along a direction approaching and moving away from the cavity. The locking member is used to extend into the cavity and abut against the outer side of the fixing seat to fix the fixing seat.

[0012] In some embodiments, a mounting groove is provided on the outer side of the housing, a through hole communicating with the cavity is provided on the side wall of the mounting groove, and the locking member is slidably mounted on the through hole;

[0013] The automotive wiring harness terminal resistor also includes a driving member, which is movably installed in the installation groove along the axial direction of the shell, and the driving member is wedge-matched with the locking member, so that when the driving member moves toward the bottom of the installation groove, the driving member abuts against the locking member to drive the locking member to extend from the through hole into the cavity.

[0014] In some embodiments, the locking member includes a limiting portion and a locking portion connected in sequence, the cross-sectional area of ​​the limiting portion is larger than the cross-sectional area of ​​the locking portion, and the limiting portion is located in the mounting groove, the limiting portion is used to abut against the driving member, the locking portion is adapted to the through hole, and the length of the locking portion is greater than the length of the through hole.

[0015] In some embodiments, the automotive wiring harness terminal resistor further includes an elastic member, which is respectively connected to the limiting portion and the side wall of the mounting groove, and the elastic member is used to drive the locking member to move in a direction away from the cavity.

[0016] In some embodiments, there are multiple locking members, and the multiple locking members are evenly arranged along the circumference of the shell. The installation groove is arranged in a ring shape. The driving member is adapted to the installation groove, and the driving member is connected to the multiple locking members for driving the multiple locking members to move synchronously.

[0017] In some embodiments, the side wall of the installation groove is provided with an internal thread, the outer periphery of the locking member is provided with an external thread, and the locking member is threadably matched with the installation groove.

[0018] In some embodiments, the cavity includes a first cavity section and a second cavity section connected in sequence from the opening to the bottom of the cavity, the cross-sectional area of ​​the first cavity section is larger than the cross-sectional area of ​​the second cavity section, and the fixing seat is arranged at one end of the first cavity section close to the second cavity section.

[0019] In some embodiments, the housing, the fixing base, the metal terminal and the locking member together constitute a plug;

[0020] The automobile wiring harness terminal resistor also includes a socket, which is provided with two jacks. The metal parts in the jacks are used to connect to the automobile wiring harness through cables. The socket is adapted to the first cavity section, and the plug is inserted into the socket so that the socket part extends into the first cavity section.

[0021] In some embodiments, the automotive wiring harness terminal resistor also includes a magnetic part and an adsorption part. The magnetic part is provided at one end of the socket facing the plug, and the adsorption part is provided on the outside of the fixing seat so that when the plug is plugged into the socket, the magnetic part and the adsorption part cooperate with each other by magnetic attraction to fix the plug and the socket.

[0022] In some embodiments, the fixing seat is provided with two mounting holes, the central periphery of each metal terminal is covered with an insulating connecting column, the insulating connecting column is fixedly installed in the mounting hole, and the fixing seat constitutes the adsorption member; and / or,

[0023] The automobile wiring harness terminal resistor further comprises a sealing ring, which is sleeved on the outer circumference of the socket so that when the plug is plugged into the socket, the sealing ring abuts against the side wall of the first cavity section.

[0024] Compared with the prior art, the utility model provides an automotive wiring harness terminal resistor, wherein the shell is provided with a cavity with an opening on one side, a stopper is provided in the cavity, the fixing seat is installed in the cavity, the inner side of the fixing seat abuts against the stopper, the fixing seat and the shell are enclosed to form a closed installation cavity, the two metal terminals are arranged on the fixing seat at intervals, one end of the two metal terminals located in the installation cavity is connected to a resistor, both ends of the metal terminals extend out of the fixing seat, one end of the metal terminal located in the installation cavity is connected to a resistor, namely, the wiring harness terminal resistor, the other end of the metal terminal is used for plugging with the wiring harness, the locking piece is movably installed on the shell along the direction of approaching and moving away from the cavity, and the locking piece is used to extend into the cavity and the The outer side of the fixing seat abuts to fix the fixing seat, the fixing seat is adapted to the cavity, the fixing seat is installed in the cavity from the opening, and the inner side surface of the fixing seat abuts against the stop portion to limit the movement of the fixing seat toward the bottom direction of the cavity. After the fixing seat is installed in place, the locking piece is driven to move toward the middle direction of the cavity, so that the locking piece extends into the cavity, the locking piece abuts against the outer side surface of the fixing seat, and the fixing seat is adapted to the cavity, thereby limiting the circumferential movement of the fixing seat, and through the coordinated use of the stop portion and the locking piece, the movement of the fixing seat in the axial direction is limited, thereby achieving the purpose of fixing the fixing seat, facilitating installation and disassembly, and facilitating later disassembly and maintenance.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of an embodiment of an automotive wiring harness terminal resistor provided by the utility model;

[0028] Figure 2 for Figure 1 Cross-sectional view of the terminal resistor of the automobile wiring harness;

[0029] Figure 3 for Figure 1 Explosion diagram of the terminal resistor of the automobile wiring harness;

[0030] Figure 4 for Figure 1 A three-dimensional schematic diagram of the middle locking member;

[0031] Figure 5 for Figure 1 A three-dimensional schematic diagram of the middle socket;

[0032] Figure 6 for Figure 1 Schematic diagram of the middle shell.

[0033] Description of reference numerals:

[0034] 1-plug, 11-housing, 111-cavity, 112-mounting groove, 113-through hole, 12-fixed seat, 13-metal terminal, 14-insulating connecting column, 15-resistance, 16-locking member, 161-limiting part, 1611-abutting side, 162-locking part, 17-driving member, 18-elastic member, 2-socket, 21-jack, 22-magnetic member, 3-sealing ring. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0036] See also Figures 1 to 3 The automotive wiring harness terminal resistor 15 includes a shell 11, a fixing seat 12, two metal terminals 13 and a locking piece 16. The shell 11 is provided with a cavity 111 with an opening on one side, and a stopper is provided in the cavity 111; the fixing seat 12 is installed in the cavity 111, and the inner side of the fixing seat 12 abuts against the stopper, and the fixing seat 12 and the shell 11 are enclosed to form a closed installation cavity; the two metal terminals 13 are arranged at intervals on the fixing seat 12, and one end of the two metal terminals 13 located in the installation cavity is connected to the resistor 15; the locking piece 16 is movably installed on the shell 11 along the direction of approaching and moving away from the cavity 111, and the locking piece 16 is used to extend into the cavity 111 and abut against the outer side of the fixing seat 12 to fix the fixing seat 12.

[0037] The utility model provides an automotive wiring harness terminal resistor 15, wherein the housing 11 is provided with a cavity 111 with an opening on one side, a stopper is provided in the cavity 111, the fixing seat 12 is installed in the cavity 111, the inner side of the fixing seat 12 abuts against the stopper, the fixing seat 12 and the housing 11 are enclosed to form a closed installation cavity, the two metal terminals 13 are arranged at intervals on the fixing seat 12, one end of the two metal terminals 13 located in the installation cavity is connected with the resistor 15, both ends of the metal terminals 13 extend out of the fixing seat 12, one end of the metal terminal 13 located in the installation cavity is connected with the resistor 15, namely, the wiring harness terminal resistor 15, the other end of the metal terminal 13 is used for plugging with the wiring harness, the locking member 16 is movably installed on the housing 11 along the direction of approaching and moving away from the cavity 111, and the locking member 16 is used to extend into the cavity 111 and the fixing ... The outer side of the seat 12 abuts to fix the fixing seat 12, and the fixing seat 12 is adapted to the cavity 111. The fixing seat 12 is installed into the cavity 111 from the opening, and the inner side surface of the fixing seat 12 abuts against the stopper to limit the movement of the fixing seat 12 toward the bottom direction of the cavity 111. After the fixing seat 12 is installed in place, the locking member 16 is driven to move toward the middle direction of the cavity 111, so that the locking member 16 extends into the cavity 111, and the locking member 16 abuts against the outer side surface of the fixing seat 12, and the fixing seat 12 is adapted to the cavity 111, thereby limiting the circumferential movement of the fixing seat 12. Through the coordinated use of the stopper and the locking member 16, the movement of the fixing seat 12 in the axial direction is limited, thereby achieving the purpose of fixing the fixing seat 12, facilitating installation and disassembly, and facilitating later disassembly and maintenance.

[0038] For further information, see Figure 6The outer side of the shell 11 is provided with a mounting groove 112, and the side wall of the mounting groove 112 is provided with a through hole 113 connected to the cavity 111, and the locking member 16 is slidably installed in the through hole 113; the automotive wiring harness terminal resistor 15 also includes a driving member 17, and the driving member 17 is movably installed in the mounting groove 112 along the axial direction of the shell 11, and the driving member 17 and the locking member 16 are wedge-matched, so that when the driving member 17 moves toward the bottom of the mounting groove 112, the driving member 17 abuts against the locking member 16 to drive the locking member 16 to extend from the through hole 113 into the cavity 111. Specifically, the side of the locking member 16 facing away from the cavity 111 is the abutting side 1611, the abutting side 1611 is located in the mounting groove 112, and the abutting side 1611 is gradually inclined toward the middle of the cavity 111 in the direction of the groove opening of the mounting groove 112, the side of the driving member 17 facing the cavity 111 is the driving side, and the driving side is in contact with the abutting side 1611, and when the driving member 17 gradually moves toward the bottom of the mounting groove 112, the locking member 16 is pushed to gradually extend into the cavity 111, thereby locking the fixing seat 12.

[0039] For further information, see Figure 4 The locking member 16 includes a limiting portion 161 and a locking portion 162 connected in sequence. The cross-sectional area of ​​the limiting portion 161 is larger than the cross-sectional area of ​​the locking portion 162, and the limiting portion 161 is located in the mounting groove 112. The limiting portion 161 is used to abut against the driving member 17. The locking portion 162 is adapted to the through hole 113, and the length of the locking portion 162 is greater than the length of the through hole 113. The limiting portion 161 cannot pass through the through hole 113, so that the locking member 16 can be limited to prevent the locking member 16 from being fully extended into the cavity 111. The abutting side 1611 is provided on the limiting portion 161.

[0040] Furthermore, in order to facilitate the locking member 16 to withdraw from the cavity 111, in this embodiment, the automotive wiring harness terminal resistor 15 further includes an elastic member 18, which is respectively connected to the limiting portion 161 and the side wall of the mounting groove 112, and is used to drive the locking member 16 to move in a direction away from the cavity 111. By providing the elastic member 18, when the fixing seat 12 is disassembled, when the driving member 17 moves in a direction away from the bottom of the mounting groove 112, the elastic member 18 can drive the locking member 16 to gradually withdraw from the cavity 111, thereby releasing the limiting of the fixing seat 12 and facilitating the removal of the fixing seat 12.

[0041] Furthermore, in order to improve the locking strength, in this embodiment, a plurality of locking members 16 are provided, and the plurality of locking members 16 are evenly arranged along the circumference of the housing 11, the mounting groove 112 is arranged in an annular shape, the driving member 17 is adapted to the mounting groove 112, and the driving member 17 is connected to the plurality of locking members 16 to drive the plurality of locking members 16 to move synchronously. With such an arrangement, the plurality of locking members 16 can be driven to move synchronously by one driving member 17, thereby improving the efficiency of installation and removal.

[0042] Furthermore, after the driving member 17 drives the locking member 16 to move to the set position, the driving member 17 needs to be fixed to prevent it from accidentally moving. Therefore, in this embodiment, the side wall of the installation groove 112 is provided with an internal thread, and the outer periphery of the locking member 16 is provided with an external thread, and the locking member 16 is threadedly matched with the installation groove 112. Through the threaded match, the axial movement of the driving member 17 can be realized, and the driving member 17 can be fixed, which has a simple structure and is easy to use.

[0043] Furthermore, in order to prevent the connection point of the metal terminal 13 from being exposed to the air when the metal terminal 13 is plugged in, in this embodiment, the cavity 111 includes a first cavity section and a second cavity section sequentially connected from the opening to the bottom of the cavity 111, the cross-sectional area of ​​the first cavity section is larger than the cross-sectional area of ​​the second cavity section, and the fixing seat 12 is arranged at one end of the first cavity section close to the second cavity section. Such an arrangement can prevent the connection point from being exposed to the air.

[0044] Furthermore, in this embodiment, the shell 11, the fixing seat 12, the metal terminal 13 and the locking member 16 together constitute a plug 1; the automobile wiring harness terminal resistor 15 also includes a socket 2, the socket 2 is provided with two jacks 21, the metal parts in the jacks 21 are used to connect to the automobile wiring harness through cables, the socket 2 is adapted to the first cavity section, and the plug 1 is inserted into the socket 2 so that the socket 2 partially extends into the first cavity section.

[0045] Furthermore, after the plug 1 and the socket 2 are plugged in, in order to prevent them from accidentally loosening and causing poor contact, please refer to Figure 5 In this embodiment, the automotive wiring harness terminal resistor 15 further includes a magnetic member 22 and an adsorbent. The magnetic member 22 is provided at one end of the socket 2 facing the plug 1, and the adsorbent is provided on the outside of the fixing seat 12, so that when the plug 1 is plugged into the socket 2, the magnetic member 22 and the adsorbent are magnetically matched to fix the plug 1 and the socket 2. By setting the magnetic attraction match between the magnetic member 22 and the adsorbent, the plug 1 and the socket 2 can be fixed to prevent them from being accidentally loosened.

[0046] Furthermore, the magnetic member 22 is a magnet, and the magnet is provided with two avoidance holes corresponding to the two insertion holes 21, and the aperture of the avoidance holes is larger than the aperture of the insertion holes 21, and the adsorption member is an iron sheet.

[0047] Furthermore, the fixing seat 12 is provided with two mounting holes, and the middle periphery of each metal terminal 13 is covered with an insulating connecting column 14, and the insulating connecting column 14 is fixedly installed in the mounting hole, and the fixing seat 12 constitutes the adsorbent. The fixing seat 12 is made of iron material. In this way, on the one hand, the fixing purpose is achieved through the magnetic attraction cooperation between the fixing seat 12 and the magnet, which simplifies the structure and reduces the cost. On the other hand, through the rigid cooperation between the locking member 16 and the fixing seat 12, a better fixing effect is achieved.

[0048] Furthermore, in order to improve the dustproof and waterproof performance, in an embodiment, the automobile wiring harness terminal resistor 15 also includes a sealing ring 3, which is sleeved on the outer periphery of the socket 2 so that when the plug 1 is plugged into the socket 2, the sealing ring 3 abuts against the side wall of the first cavity section.

[0049] In the description of this application, it should be noted that when there are directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that, in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes, taking "A and / or B" as an example, including scheme A or scheme B or schemes that A and B meet simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An automotive wiring harness terminal resistor, characterized in that: It includes: The housing is provided with a cavity with an opening on one side, and a stopper is provided in the cavity; A fixing seat is installed in the cavity, the inner side of the fixing seat abuts against the stopper, and the fixing seat and the shell are enclosed to form a closed installation cavity; Two metal terminals are arranged at intervals on the fixing seat, and one end of the two metal terminals located in the installation cavity is connected to a resistor; as well as A locking member is movably mounted on the housing along a direction approaching and moving away from the cavity. The locking member is used to extend into the cavity and abut against the outer side of the fixing seat to fix the fixing seat.

2. The automotive wiring harness terminal resistor according to claim 1, characterized in that: The outer side of the housing is provided with a mounting groove, the side wall of the mounting groove is provided with a through hole communicating with the cavity, and the locking member is slidably mounted in the through hole; The automotive wiring harness terminal resistor also includes a driving member, which is movably installed in the installation groove along the axial direction of the shell, and the driving member is wedge-matched with the locking member, so that when the driving member moves toward the bottom of the installation groove, the driving member abuts against the locking member to drive the locking member to extend from the through hole into the cavity.

3. The automotive wiring harness terminal resistor according to claim 2, characterized in that: The locking member includes a limiting portion and a locking portion connected in sequence, the cross-sectional area of ​​the limiting portion is larger than the cross-sectional area of ​​the locking portion, and the limiting portion is located in the mounting groove, the limiting portion is used to abut against the driving member, the locking portion is adapted to the through hole, and the length of the locking portion is larger than the length of the through hole.

4. The automotive wiring harness terminal resistor according to claim 3, characterized in that: The automobile wiring harness terminal resistor also includes an elastic member, which is respectively connected to the limiting portion and the side wall of the installation groove, and the elastic member is used to drive the locking member to move in a direction away from the cavity.

5. The automotive wiring harness terminal resistor according to claim 2, characterized in that: There are multiple locking members, and the multiple locking members are evenly arranged along the circumference of the shell. The installation groove is arranged in an annular shape. The driving member is adapted to the installation groove. The driving member is connected to the multiple locking members and is used to drive the multiple locking members to move synchronously.

6. The automotive wiring harness terminal resistor according to claim 5, characterized in that: The side wall of the installation groove is provided with an internal thread, the outer periphery of the locking member is provided with an external thread, and the locking member is threadably matched with the installation groove.

7. The automotive wiring harness terminal resistor according to claim 1, characterized in that: The cavity includes a first cavity section and a second cavity section connected in sequence from the opening to the bottom of the cavity, the cross-sectional area of ​​the first cavity section is larger than the cross-sectional area of ​​the second cavity section, and the fixing seat is arranged at one end of the first cavity section close to the second cavity section.

8. The automotive wiring harness terminal resistor according to claim 7, characterized in that: The housing, the fixing seat, the metal terminal and the locking member together constitute a plug; The automobile wiring harness terminal resistor also includes a socket, which is provided with two jacks. The metal parts in the jacks are used to connect to the automobile wiring harness through cables. The socket is adapted to the first cavity section, and the plug is inserted into the socket so that the socket part extends into the first cavity section.

9. The automotive wiring harness terminal resistor according to claim 8, characterized in that: The automotive wiring harness terminal resistor also includes a magnetic part and an adsorption part. The magnetic part is provided with one end of the socket facing the plug, and the adsorption part is provided on the outside of the fixing seat, so that when the plug is plugged into the socket, the magnetic part and the adsorption part are magnetically matched to fix the plug and the socket.

10. The automotive wiring harness terminal resistor according to claim 9, characterized in that: The fixing seat is provided with two mounting holes, the central periphery of each metal terminal is covered with an insulating connecting column, the insulating connecting column is fixedly installed in the mounting hole, and the fixing seat constitutes the adsorption member; and / or, The automobile wiring harness terminal resistor further comprises a sealing ring, which is sleeved on the outer circumference of the socket so that when the plug is plugged into the socket, the sealing ring abuts against the side wall of the first cavity section.

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