Horizontal connector and connector combination

Abstract

The utility model discloses a horizontal connector and a connector combination, and the horizontal connector comprises a housing part which is defined to form a mounting surface, the housing part is hollow to form a mounting cavity, one end of the housing part is provided with an insertion port, and the insertion port enables the mounting cavity to be communicated with the outside along the plugging direction parallel to the mounting surface; the two terminal pieces are arranged along the left-right direction which is parallel to the mounting surface and is vertical to the plugging direction; a main body part, an elastic part positioned in the mounting cavity and a butt joint part are formed on each terminal piece; the elastic part comprises a first elastic arm and a second elastic arm, one end of the first elastic arm and one end of the second elastic arm are fixedly connected with the body part, a butt joint gap is formed between the first elastic arm and the second elastic arm in the vertical direction, and a butt joint opening is formed in one end of the first elastic arm and one end of the second elastic arm. The first elastic arm and the second elastic arm can elastically swing in the vertical direction with the ends, fixed to the body part, of the first elastic arm and the second elastic arm as fulcrums.

Description

TECHNICAL FIELD

[0001] The present application relates to a horizontal connector and a connector combination. BACKGROUND

[0002] Vehicles propelled by internal combustion engines have low voltage circuits for operating various devices such as turn indicators, headlamps, brake lights, radios, and electronic instrument panels. However, electric or hybrid vehicles require high voltage circuits to provide the necessary wattage to run the main electric motor and other devices that are typically driven by a belt. They utilize high voltage (typically 300 V, or higher) to power the devices, and require high voltage connectors for these circuits.

[0003] In order to allow easy installation and disconnection of various electronic components for maintenance and replacement, the high voltage circuits used by these electric and hybrid vehicles can have several high voltage connectors (including MSD connectors) that are conveniently placed.

[0004] MSD connectors are high voltage connectors with a fuse, where pulling out the MSD connector can disconnect the high voltage system power supply of a new energy electric vehicle, while achieving the effects of electrical isolation of the high voltage system and short circuit protection. Traditional MSD connectors are generally composed of a plug, a socket that cooperates with the plug, and a handle movably arranged on the MSD connector. In use, the handle is first operated to cause the plug to move, thereby causing the plug to enter or be pulled out of the socket.

[0005] Most of the MSD connectors on the market are vertical, inserted and pulled out perpendicular to the panel. These MSDs have a high height and require a movable space for insertion and pulling out. However, in the application scenario of connecting the battery pack of an electric vehicle or a hybrid vehicle, in order to compress the peripheral space and reduce the gap between the electric piles, a MSD connector with a lower height is needed.

[0006] Therefore, it is necessary to design a new electrical connector and its combination to solve the above technical problems. SUMMARY

[0007] The present application aims to provide a horizontal connector and a connector combination, which is easy to produce and manufacture and can greatly reduce the overall height and docking height of the connector combination.

[0008] To achieve the above purpose, the present application provides the following technical solutions:

[0009] A horizontal connector, characterized in that it comprises:

[0010] A housing member defining a mounting surface, the housing member being hollow to form a mounting cavity and defining an insertion opening at one end, the insertion opening communicating with the outside along an insertion direction parallel to the mounting surface;

[0011] At least two terminal members arranged along a left-right direction perpendicular to the insertion direction and parallel to the mounting surface;

[0012] Each of the terminal members defines a main body portion, an elastic portion, and a mating portion, at least a portion of the main body portion being fixed to the housing member, and the mating portion extending out of the housing member;

[0013] The elastic portion includes a first elastic arm and a second elastic arm, the first elastic arm and the second elastic arm being fixedly connected to the main body portion at one end away from the insertion opening along the insertion direction, the first elastic arm and the second elastic arm defining a mating gap therebetween along an up-down direction perpendicular to the mounting surface, the mating gap defining a mating opening at one end of the insertion opening along the insertion direction;

[0014] The first elastic arm is capable of elastically swinging along the up-down direction about the fixed end of the main body portion as a fulcrum;

[0015] The second elastic arm is capable of elastically swinging along the up-down direction about the fixed end of the main body portion as a fulcrum.

[0016] Further, the housing member includes a base and a cover combined with each other;

[0017] The base defines a main body plate;

[0018] The cover includes a top plate arranged opposite to the main body plate along the up-down direction, and a side plate extending from a peripheral edge of the top plate toward the main body plate along the up-down direction, the mounting cavity being formed by the main body plate, the top plate, and the side plate, and the insertion opening being formed through the side plate along the insertion direction.

[0019] Further, an inner side surface of the main body plate extends upward to form a first ring wall portion;

[0020] The main body portion includes a first segment extending along the insertion direction, and a second segment combined with one end of the first segment and extending along the up-down direction;

[0021] The first segment is arranged on an upper edge of the first ring wall portion;

[0022] The second segment passes through the main body plate downward at an outer side of an interval enclosed by the first ring wall portion, and forms the mating portion at a free end;

[0023] A projection of the elastic portion along the up-down direction falls within the interval enclosed by the first ring wall portion.

[0024] Further, the inner side surface of the top plate extends downward to form a second ring wall portion;

[0025] The second ring wall portion is arranged opposite to the first ring wall portion in the up-down direction and is stacked downward on the first section portion at a corresponding position;

[0026] The projection of the elastic portion in the up-down direction falls within the interval surrounded by the second ring wall portion.

[0027] Further, the first section portion protrudes to form wing portions on both sides of the end close to the elastic portion in the left-right direction along the insertion and extraction direction, the upper end edge of the first ring wall portion corresponds to form a clamping groove, and the wing portions are clamped and supported in the clamping groove from top to bottom.

[0028] Further, the lower end edge of the side plate of the cover seat further extends downward to form a raised plate, and the ring wall formed by the side plate and the raised plate surrounds the periphery of the base;

[0029] The fixing portion is formed by the partial position of the inner side surface of the top plate extending downward;

[0030] The locking bolt is arranged on the base and locks the base below the fixing portion;

[0031] The overhead cavity is formed by the lower surface of the base and the inner side surface of the raised plate;

[0032] The mounting surface is formed by the lower end edge of the raised plate.

[0033] Further, the side plate includes a front side plate and a rear side plate arranged opposite at both ends in the insertion and extraction direction, and two connecting plates integrally connecting both sides of the front side plate and the rear side plate and arranged opposite, and the front side plate, the rear side plate and the two connecting plates collectively form a square shape;

[0034] The insertion opening is formed through the front side plate;

[0035] The ring wall portion is formed by the insertion opening of the front side plate extending inward along the insertion and extraction direction at a position around the insertion opening;

[0036] The docking cavity is formed by the inner ring surface of the ring wall portion and the side surface of the first ring wall portion and the side surface of the second ring wall portion;

[0037] The accommodation hole is formed through the combined position of the first ring wall portion and the second ring wall portion in the insertion and extraction direction, and the accommodation hole communicates the docking opening and the docking cavity in the insertion and extraction direction.

[0038] Further, each of the terminal members includes an upper piece and a lower piece;

[0039] The upper piece body includes an upper main body, the first elastic arm integrally connected to one end of the upper main body, and an upper butt joint integrally connected to the other end of the upper main body;

[0040] The lower piece body includes a lower main body, the second elastic arm integrally connected to one end of the lower main body, and a lower butt joint integrally connected to the other end of the lower main body;

[0041] The upper butt joint and the lower butt joint are attached along the plug-in direction to form the butt joint;

[0042] The upper main body and the lower main body are stacked along the up-down direction and are integrally formed into the main body by rivets.

[0043] Further, each of the terminal pieces further includes an upper auxiliary piece and a lower auxiliary piece;

[0044] The upper auxiliary piece includes an upper substrate and an upper elastic auxiliary part integrally connected to one end of the upper substrate, and the lower auxiliary piece includes a lower substrate and a lower elastic auxiliary part integrally connected to one end of the lower substrate;

[0045] The upper substrate, the upper main body, the lower main body, and the lower substrate are stacked along the up-down direction and are integrally formed into the main body by the rivets;

[0046] The upper elastic auxiliary part is attached above the first elastic arm;

[0047] The lower elastic auxiliary part is attached below the second elastic arm.

[0048] To achieve the above object, the application further provides the following technical solutions:

[0049] A connector combination includes the horizontal connector as described above, and further includes:

[0050] The butt joint connector includes a housing and a butt joint terminal;

[0051] The housing is formed with an insertion tongue part;

[0052] The butt joint terminal includes a butt joint fixed part fixed in the insertion tongue part and a butt joint contact part protruding out of the insertion tongue part along the plug-in direction;

[0053] When the butt joint connector is butt jointed with the horizontal connector, the butt joint contact part is inserted into the butt joint gap of the terminal piece through the butt joint opening to short-circuit at least two terminal pieces.

[0054] Further, the housing includes a front end cover plate, a top end cover plate, and a side cover plate integrally connected, and the insertion tongue part is further formed by extending from one side surface of the front end cover plate;

[0055] When the docking connector is docked with the horizontal connector, the front end cover plate corresponds to cover the outer surface of the docking opening position of the side plate, the side cover plate corresponds to cover the outer surface of the side plate in the left-right direction, and the top end cover plate corresponds to cover the outer surface of the top plate.

[0056] Compared with the prior art, the horizontal connector and the connector combination have the advantages of easy production and manufacturing, and can greatly reduce the overall height and docking height of the connector combination. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 is a perspective view of the connector combination of the present application, which specifically shows the perspective view of the horizontal connector and the docking connector after docking.

[0058] Figure 2 is a perspective view of the connector combination of the present application, which specifically shows the perspective view of the horizontal connector and the docking connector before docking.

[0059] Figure 3 is Figure 2 a perspective view from another angle.

[0060] Figure 4 is Figure 1 a top view of the connector combination in

[0061] Figure 5 is a sectional view from Figure 4 line A-A in

[0062] Figure 6 is Figure 5 the sectional view shown in

[0063] Figure 7 is a perspective exploded view of the horizontal connector and the docking connector of the present application before docking, which specifically shows the perspective view of the cover seat of the horizontal connector and the terminal piece separated from the base, and specifically shows the perspective view of the rotating lock piece of the docking connector separated from the shell.

[0064] Figure 8 in Figure 7 shows the perspective view of the cover seat of the horizontal connector separated from the base, and simultaneously shows the perspective view of the docking connector, Figure 6 the viewing angle is different.

[0065] Figure 9 is a perspective exploded view of the terminal piece of the horizontal connector of the present application. DETAILED DESCRIPTION

[0066] With reference to the drawings, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall into the scope of the present application.

[0067] It should be noted that, in the present application, unless otherwise explicitly specified and limited, the terms "mounting", "assembling", "connecting", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] It should be noted that, in the present application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0069] In addition, for the accuracy of the description, all the directions involved in the present application throughout the description are taken as Figure 2 reference, and the direction in which the X axis is defined as the left-right direction; the direction in which the Y axis is defined as the up-down direction, wherein the positive direction of the Y axis is up; and the direction in which the Z axis is defined as the plug-in direction (i.e. the direction of the docking connector 400 and the horizontal connector 100).

[0070] Please refer to Figures 1 to 9 the connector combination disclosed in the present application, which includes a horizontal connector 100 and a docking connector 400 that are docked with each other. The horizontal connector 100 includes a housing 1 and two terminal pieces 2 fixedly arranged in the housing 1. The housing 1 is defined to form a mounting surface 10 for mounting contact with a device substrate / device housing (not shown). The housing 1 is hollow to form a mounting cavity 101 and forms a plug-in opening 102 at one end, which communicates the mounting cavity 101 with the outside along the plug-in direction parallel to the mounting surface 10.

[0071] Please refer to Figures 5 to 7 and Figure 9As shown, two of the terminal pieces 2 are arranged in a left-right direction parallel to the mounting surface 10 and perpendicular to the plug-in direction. Each of the terminal pieces 2 is formed with a main body portion 21, an elastic portion 22, and a mating portion 23 connected to each other. A part of the main body portion 21 is fixed to the housing piece 1, and the mating portion 23 extends out of the housing piece 1 to be electrically connected to an apparatus. Each of the elastic portions 22 includes a first elastic arm 221 and a second elastic arm 222 fixed to the main body portion 21 at one end thereof away from the insertion opening 102 in the plug-in direction. The first elastic arm 221 and the second elastic arm 222 form a mating gap 220 therebetween in an up-down direction perpendicular to the mounting surface 10, and the mating gap 220 forms a mating opening 2201 at one end thereof away from the insertion opening 102 in the plug-in direction. The first elastic arm 221 is elastically swingable in the up-down direction about the fixed end thereof to the main body portion 21. The second elastic arm 222 is elastically swingable in the up-down direction about the fixed end thereof to the main body portion 21.

[0072] In the preferred embodiment of the present application, each of the terminal pieces 2 includes an upper piece 202 and a lower piece 203. The upper piece 202 includes an upper main body portion 2021, the first elastic arm 221 integrally connected to one end of the upper main body portion 2021, and an upper mating portion 2022 integrally connected to the other end of the upper main body portion 2021. The lower piece 203 includes a lower main body portion 2031, the second elastic arm 222 integrally connected to one end of the lower main body portion 2031, and a lower mating portion 2032 integrally connected to the other end of the lower main body portion 2031. The upper mating portion 2022 and the lower mating portion 2032 are fitted to each other to form the mating portion 23. The upper main body portion 2021 and the lower main body portion 2031 are stacked in the up-down direction and integrally formed with the main body portion 21 by a rivet 5.

[0073] In the preferred embodiments of the present application (i.e. the embodiments shown in the drawings of the present application), each of the terminal pieces 2 can further include an upper auxiliary sheet 201 and a lower auxiliary sheet 204. The upper auxiliary sheet 201 includes an upper base plate 2011 and an upper elastic auxiliary portion 2012 integrally connected to one end of the upper base plate 2011. The lower auxiliary sheet 204 includes a lower base plate 2041 and a lower elastic auxiliary portion 2042 integrally connected to one end of the lower base plate 2041. The upper base plate 2011, the upper main body portion 2021, the lower main body portion 2031, and the lower base plate 2041 are stacked in the up-down direction and are integrally formed into the main body portion 21 by the rivets 5. The upper elastic auxiliary portion 2012 is correspondingly attached above the first elastic arm 221. The lower elastic auxiliary portion 2042 is correspondingly attached below the second elastic arm 222. The upper auxiliary sheet 201 and the lower auxiliary sheet 204 can improve the elastic force of the first elastic arm 221 and the second elastic arm 222, thereby improving the bonding force of the first elastic arm 221 and the second elastic arm 222 with the mating terminal 42 of the mating connector 400, improving the mating stability of the horizontal connector 100 and the mating connector 400, facilitating large-current transmission, and reducing heat generation.

[0074] For reference Figures 2 to 8 In the present application, as shown in the drawings, the housing piece 1 includes a base 11 and a cover 12 combined with each other. The base 11 is formed with a main body plate 111. The cover 12 includes a top plate 121 arranged opposite to the main body plate 111 in the up-down direction and a side plate 122 extending (downward) from the periphery of the top plate 121 toward the main body plate 111 in the up-down direction. Figure 2 The mounting cavity 101 is formed by the main body plate 111, the top plate 121, and the side plate 122. The insertion opening 102 is formed through the side plate 122 in the plug-in direction.

[0075] For reference Figures 2 to 8As shown, in the preferred embodiment of the present application, the inner side surface of the main plate 111 extends upward to form a first ring wall portion 112. The main portion 21 includes a first section 211 extending in the plug-in direction and a second section 212 combined with one end of the first section 211 and extending in the up-down direction. The first section 211 is stacked on the upper edge of the first ring wall portion 112. The second section 212 passes through the main plate 111 on the outside of the interval surrounded by the first ring wall portion 112 downward and forms the docking portion 23 at the free end. The projection of the elastic portion 22 in the up-down direction falls within the interval surrounded by the first ring wall portion 112. In the preferred embodiment, the inner side surface of the top plate 121 extends downward to form a second ring wall portion 1211. The second ring wall portion 1211 is arranged opposite to the first ring wall portion 112 in the up-down direction and is stacked downward on the first section 211 at the corresponding position. The projection of the elastic portion 22 in the up-down direction falls within the interval surrounded by the second ring wall portion 1211.

[0076] Specifically, in the preferred embodiment, the side plate 122 includes a front side plate 1222 and a rear side plate 1223 located at both ends in the plug-in direction and arranged opposite to each other, and two connecting plates 1221 integrally connecting both sides of the front side plate 1222 and the rear side plate 1223 respectively and arranged opposite to each other. The front side plate 1222, the rear side plate 1223 and the two connecting plates 1221 collectively surround to form a square shape. The insertion opening 102 is formed through the front side plate 1222. The insertion opening 102 of the front side plate 1222 extends inward (the perspective view is extended backward) along the plug-in direction to form a ring wall portion 1224 at one position. The inner ring surface of the ring wall portion 1224 and one side surface of the first ring wall portion 112 (the perspective view is the front surface) and one side surface of the second ring wall portion 1211 (the perspective view is the front surface) collectively surround to form a docking cavity 120. Figure 2 Figure 2 Figure 2 The first ring wall portion 112 and the second ring wall portion 1211 are combined at a position corresponding to the insertion opening 102 in the plug-in direction to form a relief hole 104 through. The relief hole 104 communicates the docking opening 2201 with the docking cavity 120 in the plug-in direction.

[0077] In the preferred embodiment, the first section 211 protrudes to form a wing portion 2111 on both sides near one end of the elastic portion 22 in the plug-in direction along the left-right direction. The upper end of the first ring wall portion 112 corresponds to form a clamping groove 1121, and the wing portion 2111 is clamped and supported in the clamping groove 1121 from top to bottom, which is used for assembly positioning, and can also share the force applied to the terminal piece 2 in the plug-in direction when the docking connector 400 is inserted and pulled out.

[0078] ​​Further, in the preferred embodiment of the present application, the lower end of the side plate 122 of the cover seat 12 further extends downward to form a raised plate 123. The annular wall (not numbered) formed by the side plate 122 and the raised plate 123 is arranged around the periphery of the base (11). Specifically, it can be combined with reference to Figures 5 to 8 In the embodiment of the present application, the rear end of the annular wall portion abuts against the front end of the main plate 111. The inner side surface of the top plate 121 has a local position extending downward to form a fixing portion 1212. The base 11 is locked below the fixing portion 1212 by a plurality of locking bolts 3. Specifically, the fixing portion 1212 can be a plurality of downward protruding column structures, preferably distributed at the four corner positions of the mounting cavity 101 (the outer side of the interval surrounded by the first annular wall portion 112; the outer side of the interval surrounded by the second annular wall portion 1211). The lower surface of the base 11 and the inner side surface of the raised plate 123 jointly form an air cavity 103. The mounting surface 10 is formed by the lower end of the raised plate 123. In the embodiment of the present application, the lower end of the raised plate 123 includes a widened skirt portion (not numbered) further extending outward, and the lower surface of the skirt portion defines the mounting surface 10. The air cavity 103 is beneficial for heat dissipation. In some embodiments, a plurality of heat dissipation holes can also be formed in the main plate (111) to communicate the mounting cavity 101 with the air cavity 103.

[0079] The docking connector 400 comprises a housing 41 and a docking terminal 42. The housing 41 is formed with an insertion tongue 411. The docking terminal 42 comprises a docking fixed section 421 fixed in the insertion tongue 411 and a docking contact section 422 protruding out of the insertion tongue 411 along the insertion and extraction direction. When the docking connector 400 is docked with the horizontal connector 100, the docking contact section 422 is inserted into the docking gap (220) of the terminal piece 2 through the insertion opening 102, the accommodation hole 104 and the docking opening 2201, thereby short-circuiting the two terminal pieces 2; the insertion tongue 411 is inserted into the docking cavity 120 through the insertion opening 102; in some embodiments, the free end edge of the insertion tongue 411 can correspond to the insertion stop on the front surface of the first ring wall portion 112 and the front surface of the second ring wall portion 1211. In a preferred embodiment, the housing 41 further comprises a front end cover plate 412, a top end cover plate 413 and a side cover plate 414 which are integrally connected. The insertion tongue 411 is further extended by a side surface of the front end cover plate 412. When the docking connector 400 is docked with the horizontal connector 100, the front end cover plate 412 corresponds to the outer surface of the docking opening 2201 of the side plate 122; the side cover plate 414 corresponds to the outer side surface of the side plate 122 in the left-right direction; and the top end cover plate 413 corresponds to the outer surface of the top plate 121.

[0080] In some embodiments, in order to make the docking of the docking connector 400 and the horizontal connector 100 more stable, a rotating lever handle piece 6 can be assembled on the docking connector 400. The rotating lever handle piece 6 can rotate relative to the housing 41 of the docking connector 400 within a set angle range. When the docking of the docking connector 400 and the horizontal connector 100 is completed, the rotating lever handle piece 6 can be rotated from a first angle position to a second angle position and locked with the horizontal connector 100, thereby achieving the locking of the docking connector 400 and the horizontal connector 100 and preventing the docking connector 400 and the horizontal connector 100 from being accidentally detached.

[0081] In the present application, the two terminal pieces 2 are arranged in the left-right direction, and the insertion direction of the docking connector 400 is designed to be parallel to the mounting surface 10, thereby achieving the overall low height of the connector combination.

[0082] In the embodiments of the present application, the two terminal pieces 2 and the docking terminal 42 are docked to realize the high-voltage circuit loop. In order to realize the triggering safety of the high-voltage circuit, a high-voltage interlock loop (HVIL circuit) is further provided in the preferred embodiments. The high-voltage interlock loop comprises a first connection module 71 arranged at one end of the horizontal connector 100 and a second connection module 72 arranged at one end of the docking connector 400 (seeFigure 7 and Figure 8 In practical use, the HVIL circuit is usually designed to allow the high voltage circuit loop to be interrupted after the HVIL circuit is disconnected and before the terminal member 2 and the mating terminal 42 are physically disconnected, to improve the practical use safety of the connector combination.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A horizontal connector, characterized by, The horizontal connector comprises: a housing member (1) defining a mounting surface (10), the housing member (1) being hollow to form a mounting cavity (101) and having an insertion opening (102) formed at one end to communicate the mounting cavity (101) with the outside along an insertion direction parallel to the mounting surface (10); at least two terminal members (2) arranged in left and right directions perpendicular to the insertion direction and parallel to the mounting surface (10); each terminal member (2) is formed with a main body portion (21), an elastic portion (22) and a mating portion (23), at least part of the main body portion (21) is fixed to the housing member (1), and the mating portion (23) extends out of the housing member (1); the elastic portion (22) comprises a first elastic arm (221) and a second elastic arm (222), the first elastic arm (221) and the second elastic arm (222) are fixedly connected to the main body portion (21) at one end away from the insertion opening (102) along the insertion direction, the first elastic arm (221) and the second elastic arm (222) form a mating gap (220) between them along an up and down direction perpendicular to the mounting surface (10), and the mating gap (220) forms a mating opening (2201) at one end of the insertion opening (102) along the insertion direction; the first elastic arm (221) can elastically swing along the up and down direction with the fixed end of the main body portion (21) as a fulcrum; the second elastic arm (222) can elastically swing along the up and down direction with the fixed end of the main body portion (21) as a fulcrum.

2. The horizontal connector according to claim 1, wherein: the housing member (1) comprises a base (11) and a cover (12) combined with each other; the base (11) is formed with a main body plate (111); the cover (12) comprises a top plate (121) arranged opposite to the main body plate (111) along the up and down direction, and a side plate (122) extending from the periphery of the top plate (121) toward the main body plate (111) along the up and down direction, the mounting cavity (101) is formed by the main body plate (111), the top plate (121) and the side plate (122) together, and the insertion opening (102) is formed through the side plate (122) along the insertion direction.

3. The horizontal connector according to claim 2, wherein: an inner side surface of the main body plate (111) extends upward to form a first ring wall portion (112); the main body portion (21) comprises a first section (211) extending along the insertion direction, and a second section (212) combined with one end of the first section (211) and extending along the up and down direction; the first section (211) is arranged on the upper edge of the first ring wall portion (112); the second section (212) passes through the main body plate (111) downward at the outside of the interval surrounded by the first ring wall portion (112), and forms the mating portion (23) at the free end; a projection of the elastic portion (22) along the up and down direction falls within the interval surrounded by the first ring wall portion (112).

4. The horizontal connector according to claim 3, wherein: an inner side surface of the top plate (121) extends downward to form a second ring wall portion (1211); the second ring wall portion (1211) is arranged opposite to the first ring wall portion (112) in the up-down direction and is stacked downward on the first section portion (211) at a corresponding position; a projection of the elastic portion (22) in the up-down direction falls within an interval surrounded by the second ring wall portion (1211).

5. The horizontal connector according to claim 3, wherein: the first section portion (211) is formed with wing portions (2111) protruding in the left-right direction on both sides of an end close to the elastic portion (22) in the plug-in direction, and an upper end edge of the first ring wall portion (112) is formed with a clamping groove (1121) at a corresponding position, and the wing portions (2111) are clamped and supported in the clamping groove (1121) from top to bottom.

6. The horizontal connector according to claim 2, wherein: a lower end edge of a side plate (122) of the cover seat (12) further extends downward to form a raised plate (123), and a ring wall formed by the side plate (122) and the raised plate (123) surrounds an outer periphery of the base (11); a fixing portion (1212) is formed by extending downward from a partial position of an inner side surface of the top plate (121); a locking bolt (3) is arranged through the base (11) and locks the base (11) below the fixing portion (1212); an overhead cavity (103) is formed by the lower surface of the base (11) and the inner side surface of the raised plate (123); the mounting surface (10) is formed by a lower end edge of the raised plate (123).

7. The horizontal connector according to claim 4, wherein: the side plate (122) includes a front side plate (1222) and a rear side plate (1223) arranged opposite to each other at both ends in the plug-in direction, and two connecting plates (1221) integrally connecting both sides of the front side plate (1222) and the rear side plate (1223) and arranged opposite to each other, and the front side plate (1222), the rear side plate (1223) and the two connecting plates (1221) jointly form a square shape; the insertion opening (102) is formed through the front side plate (1222); a ring wall portion (1224) is formed by extending inward from a position around the insertion opening (102) of the front side plate (1222) in the plug-in direction; a mating cavity (120) is formed by the inner ring surface of the ring wall portion (1224), one side surface of the first ring wall portion (112) and one side surface of the second ring wall portion (1211); a clearance hole (104) is formed through a combined position of the first ring wall portion (112) and the second ring wall portion (1211) in the plug-in direction, and the clearance hole (104) communicates the mating opening (2201) with the mating cavity (120) in the plug-in direction.

8. The horizontal connector according to any one of claims 1 to 7, wherein: Each of the terminal pieces (2) comprises an upper piece (202) and a lower piece (203); The upper piece (202) comprises an upper main body (2021), the first elastic arm (221) integrally connected to one end of the upper main body (2021), and an upper butt joint (2022) integrally connected to the other end of the upper main body (2021); The lower piece (203) comprises a lower main body (2031), the second elastic arm (222) integrally connected to one end of the lower main body (2031), and a lower butt joint (2032) integrally connected to the other end of the lower main body (2031); The upper butt joint (2022) and the lower butt joint (2032) are attached along the plug-in direction to form the butt joint (23); The upper main body (2021) and the lower main body (2031) are stacked along the up-down direction and are integrally formed into the main body (21) by the rivet (5).

9. The horizontal connector according to claim 8, characterized in that: Each of the terminal pieces (2) further comprises an upper auxiliary piece (201) and a lower auxiliary piece (204); The upper auxiliary piece (201) comprises an upper base plate (2011) and an upper elastic auxiliary part (2012) integrally connected to one end of the upper base plate (2011), and the lower auxiliary piece (204) comprises a lower base plate (2041) and a lower elastic auxiliary part (2042) integrally connected to one end of the lower base plate (2041); The upper base plate (2011), the upper main body (2021), the lower main body (2031), and the lower base plate (2041) are stacked along the up-down direction and are integrally formed into the main body (21) by the rivet (5); The upper elastic auxiliary part (2012) is correspondingly attached above the first elastic arm (221); The lower elastic auxiliary part (2042) is correspondingly attached below the second elastic arm (222).

10. A connector assembly comprising a horizontal connector as claimed in any one of claims 2 to 7, characterized in that Further comprising: The mating connector (400) comprises a shell (41) and a mating terminal (42); The shell (41) is formed with an insertion tongue (411); The mating terminal (42) comprises a mating fixed segment (421) fixed in the insertion tongue (411) and a mating contact segment (422) protruding out of the insertion tongue (411) along the plug-in direction; When the mating connector (400) is mated with the horizontal connector (100), the mating contact segment (422) is inserted into the butt joint gap (220) of the terminal piece (2) through the butt joint opening (2201), and at least two terminal pieces (2) are short-circuited.

11. The connector combination according to claim 10, characterized in that: The shell (41) comprises a front end cover plate (412), a top end cover plate (413), and a side cover plate (414) integrally connected, and the insertion tongue (411) is further formed by extending from one side surface of the front end cover plate (412); When the docking connector (400) is docked with the horizontal connector (100), the front end cover plate (412) corresponds to cover the outer surface of the docking opening (2201) position of the side plate (122), the side cover plate (414) corresponds to cover the outer side surface of the left and right direction of the side plate (122), and the top end cover plate (413) corresponds to cover the outer surface of the top plate (121).

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