Pluggable joint

Abstract

The utility model discloses a plugging connector, which comprises a male terminal assembly and a female terminal assembly which are plugged with each other, and the male terminal assembly comprises a male terminal support; the male terminal bracket is inserted into an inner hole of the male end connector jacket; the at least one male terminal is arranged on the male terminal support and located in the male end connector jacket, and the first end of the male terminal penetrates out of the inner hole of the male end connector jacket; and the elastic structure drives the first end of the male terminal to penetrate out of the male-end connector sleeve, and meanwhile, a limiting structure is arranged between the male terminal and the male-end connector sleeve and is used for limiting the stroke of the first end of the male terminal penetrating out of the male-end connector sleeve. According to the utility model, the male terminal has certain elasticity, and the electrical contact performance of the male terminal and the female terminal assembly is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the plug technology field of electric connection spare, especially involves a plug connector. BACKGROUND

[0002] The current user to the car seat demand more and more more diversified, the headrest requires to take the sound, take the electric regulation function, take the heating function. If adopt the traditional connection scheme, will inevitably lead to the headrest of the electric function cannot freely detachable installation requirement.

[0003] Japanese patent application JP2008-49820 discloses an example of a lead connection structure with such a headrest. In the utility model, the structure that the first connector that constitutes the lead connected with the electrical component arranged on the side of the headrest and the second connector that constitutes the connecting terminal of the extended lead are combined. From the vehicle body side, it is arranged on the side of the seat back.

[0004] Specifically, the first connector is arranged to penetrate into the interior of the headrest support column, which is arranged to fixedly mount the headrest on the seat back. The headrest support column is formed like a tube penetrating into the interior, and the first connector is held at the mouth portion (the opening on the lower end side). On the other hand, the second connector is arranged in the lower part of the headrest support member that inserts the headrest support column, and is held by the holder that is fixed integrally with the seat back. Therefore, the second connector is in a standby state, that is, when the headrest support column is subsequently inserted into the headrest support member, the second connector is ready to be connected to the first connector held at the nose portion of the headrest support column. Here, the second connector is configured to be disengaged from the holder when pushed by the insertion force of the headrest support column after the insertion operation of the headrest support column, so as to connect the first connector to the second connector.

[0005] However, in the vehicle seat disclosed in the Japanese patent application JP2008-49820, a holder for holding the second connector needs to be kept beside the headrest support member.

[0006] In another Japanese patent application JP2011140263A, a headrest assembly structure is disclosed, which assembles the headrest to the seat back by inserting the support column of the headrest into the holding member of the seat back, that is, the structure makes the support column can be assembled when the standby member waits on the seat back side. The headrest is configured so that it can be assembled to the seat back in a state that it can be supported by the standby member on the seat back side. When the support column is inserted into the holding member in a state that the standby member is attached to the cover, so that the standby member waits for the support column, the biasing member engages the fitting portion of the support column standby member is also attached to the support column by assembling into the housing. In addition, when the support column is inserted, the standby member is separated from the cover and is attached only to the support column.

[0007] US patent application US10569685B2 discloses a vehicle seat equipped with a seat back having a mounting portion, a headrest having a headrest frame and an electronic component, a first connector, and a second connector. The first connector has an engaging portion that engages with a hole of the headrest frame, a protrusion that engages the second connector, and a first connector terminal that is electrically connected to a lead wire routed in the seat back and the first connector terminal. The second connector has a first engaging piece that engages with a hole of a guide bracket from an outer side of the guide bracket, a second engaging piece that engages with the protrusion of the first connector from an outer side of the first connector, and a second connector terminal that is electrically connected. The lead wire is connected to the first connector terminal and the second connector terminal. The engagement of the hole of the mounting portion with the first engaging piece of the second connector can be irreversibly released.

[0008] There is a problem in the above prior art that the complete extraction and reinsertion of the headrest cannot be freely achieved in the whole vehicle state (without disassembling the seat back). In addition, the male connector of the above prior art is easily damaged on the headrest guide rod. Furthermore, in the above prior art, the male connector cannot be pre-installed in the seat production.

[0009] To this end, the inventor submitted an invention patent application entitled "Plugable connector device and vehicle seat" to the China National Intellectual Property Office on June 26, 2023, with the application number 202310758241.1, and then continued to submit an invention patent application with the patent application as the priority, with the publication number CN117996532A. The male connector assembly in the patent application includes a headrest rod sleeve assembly, a male connector, and a male connector wire harness electrically connected to the male connector, and the male connector is pre-installed in the headrest rod sleeve assembly; the male connector is configured to follow the female connector into and out of the headrest rod sleeve assembly after the male connector is combined with the headrest rod and the female connector; the male connector is also configured to return to the headrest rod sleeve assembly and be in a pre-installed state after the female connector is detached from the male connector.

[0010] It was found that the male terminal in the male connector lacks a certain elasticity, causing poor electrical contact. Practical new type content

[0011] The technical problem to be solved by the present utility model is to provide a male terminal assembly and a female terminal assembly of a plug connector, so that the male terminal has a certain elasticity and has good electrical contact with the female terminal assembly, in view of the problem that the male terminal in the existing male connector lacks a certain elasticity.

[0012] The technical problem to be solved by the present utility model can be solved by the following technical solutions:

[0013] A plug connector, comprising: a male terminal assembly and a female terminal assembly, wherein the male terminal assembly comprises

[0014] a male terminal holder;

[0015] a male terminal connector sleeve, the male terminal holder is inserted into the inner hole of the male terminal connector sleeve;

[0016] at least one male terminal arranged on the male terminal holder and located in the male terminal connector sleeve, the first end of the male terminal passes out of the inner hole of the male terminal connector sleeve;

[0017] at least one elastic structure, the elastic structure drives the first end of the male terminal to pass out of the male terminal connector sleeve, and a limiting structure is arranged between the male terminal and the male terminal connector sleeve to limit the stroke of the first end of the male terminal passing out of the male terminal connector sleeve.

[0018] In a preferred embodiment of the utility model, the limiting structure comprises a terminal stroke limiting part arranged in the inner hole of the male terminal connector sleeve and a terminal bevel part arranged at the intermediate position of the male terminal, and the terminal stroke limiting part and the terminal bevel part interact to limit the stroke of the first end of the male terminal passing out of the male terminal connector sleeve.

[0019] In a preferred embodiment of the utility model, the male terminal further has a second end of the male terminal axially opposite to the first end of the male terminal, and the second end of the male terminal is used to be electrically connected with a wire; a male terminal wire copper wire crimping part and a male terminal wire plastic skin crimping part are arranged at the second end of the male terminal, the male terminal wire copper wire crimping part is closer to the first end of the male terminal than the male terminal wire plastic skin crimping part.

[0020] In a preferred embodiment of the utility model, the first end of the male terminal and the second end of the male terminal are connected through a male terminal intermediate connecting part, and the terminal bevel part is arranged at the connection between the male terminal intermediate connecting part and the first end of the male terminal.

[0021] In a preferred embodiment of the utility model, the elastic structure is a spring, the first end of the male terminal is closed and has a spring hole, the first end of the spring is inserted into the spring hole, and the terminal end of the first end of the spring acts on the closed terminal end of the first end of the male terminal.

[0022] In one preferred embodiment of the utility model, the male terminal middle connecting part is in radial opening shape, so that the spring middle to the second end of the spring exposes the male terminal and makes the second end of the spring act on the male terminal support.

[0023] In one preferred embodiment of the utility model, at least one male terminal clamping groove is arranged on the male terminal support, the connecting part of the male terminal middle and the second end of the male terminal is clamped into the male terminal clamping groove, and the first end of the male terminal and the second end of the male terminal are respectively arranged axially at both ends of the male terminal clamping groove axis direction.

[0024] In one preferred embodiment of the utility model, a step plate is arranged at the position of the male terminal clamping groove on the male terminal support, the male terminal clamping groove is arranged on the step plate and penetrates the step plate, at least one spring fixing part is arranged on the step plate, and each male terminal clamping groove is located at the periphery of the spring fixing part; the second end of the spring is sleeved on the spring fixing part and acts on the surface of the step plate opposite to the first end of the male terminal, the height of each male terminal clamping groove is less than the length of the male terminal middle connecting part, so that the male terminal can axially move on the male terminal support.

[0025] In one preferred embodiment of the utility model, the elastic structure comprises an elastic element and a terminal fixing element, the first end of the male terminal is in closed shape and has a terminal fixing element insertion hole, the first end of the terminal fixing element is inserted into the terminal fixing element insertion hole, and the terminal of the terminal fixing element acts on the closed end of the first end of the male terminal, the second end of the terminal fixing element acts on the first end of the elastic element, and the second end of the elastic element acts on the male terminal support.

[0026] In one preferred embodiment of the utility model, a step plate is arranged at the position of the male terminal clamping groove on the male terminal support, the male terminal clamping groove is arranged on the step plate and penetrates the step plate, at least one spring fixing part is arranged on the step plate, and each male terminal clamping groove is located at the periphery of the spring fixing part; the second end of the spring is sleeved on the spring fixing part and acts on the surface of the step plate opposite to the first end of the male terminal, the height of each male terminal clamping groove is less than the length of the male terminal middle connecting part, so that the male terminal can axially move on the male terminal support.

[0027] In one preferred embodiment of the utility model, at least one support clamping part is arranged on the male terminal support, and at least one terminal support fixing hole is arranged on the male terminal connector sleeve; after the male terminal support is inserted into the inner hole of the male terminal connector sleeve, the support clamping part is clamped in the terminal support fixing hole.

[0028] In one preferred embodiment of the utility model, at least one elastic sheet is arranged on the male connector sleeve, and the terminal support fixing hole is arranged on the elastic sheet.

[0029] In one preferred embodiment of the utility model, at least one snap spring component installation slot is arranged on the outer periphery of the male connector sleeve; the male terminal assembly of the plug connector further comprises at least one snap spring assembly, the snap spring assembly is installed in the snap spring component installation slot; the snap spring assembly is used to be clamped with the connector preassembled with the female terminal assembly after the male terminal assembly is inserted into the female terminal assembly, and the male terminal assembly can be pulled out from the connector after the snap spring assembly is unlocked.

[0030] In one preferred embodiment of the utility model, the snap spring assembly comprises a snap spring, a snap spring recovery part and a snap spring fixing pin shaft, the middle position shaft of the snap spring is arranged on the snap spring fixing pin shaft, one end of the snap spring recovery part is fixed on the snap spring fixing pin shaft, and the other end of the snap spring recovery part is a free end; one end of the snap spring is provided with a snap spring hook used for clamping with the connector, the other end of the snap spring is provided with a snap spring pressing unlocking part, the snap spring pressing unlocking part is arranged on the other end of the snap spring away from the snap spring recovery part; the snap spring component installation slot is defined by a pair of slot edges arranged on the outer periphery of the male connector sleeve, and a snap spring fixing pin shaft installation hole is arranged on each slot edge; the snap spring fixing pin shaft installation holes on the pair of slot edges are coaxially aligned, and when the snap spring assembly is assembled, the snap spring assembly is clamped into the snap spring component installation slot from the direction perpendicular to the axis of the snap spring fixing pin shaft installation hole and makes the two ends of the snap spring fixing pin shaft clamped into the snap spring fixing pin shaft installation holes on the pair of slot edges.

[0031] In one preferred embodiment of the utility model, the female terminal assembly comprises a female terminal connector body and at least one female terminal, the female terminal has a first end of the female terminal, a second end of the female terminal and a female terminal middle connecting part used for connecting the first end of the female terminal and the second end of the female terminal; the female terminal connector body has an inner hole, at least one female terminal installation hole is arranged in the female terminal connector body, the female terminal passes through the female terminal installation hole and is clamped with the female terminal connector body; an insertion boss is arranged at the end of the female terminal connector body into which the male connector sleeve is inserted, the insertion boss is inserted into the inner hole of the female terminal connector body; the first end of the male terminal is distributed on the periphery of the insertion boss, the first end of the male terminal is in electrical contact with the first end of the female terminal; the second end of the female terminal is used for electrical connection with a wire.

[0032] In one preferred embodiment of the utility model, the second end of the female terminal is provided with a female terminal wire copper wire crimping part and a female terminal wire plastic skin crimping part, the female terminal wire copper wire crimping part is closer to the first end of the female terminal than the female terminal wire plastic skin crimping part.

[0033] In one preferred embodiment of the utility model, an outer cutting clamping part is arranged on the female terminal, a female terminal clamping notch is arranged at the position corresponding to the female terminal mounting hole, after the female terminal passes through the female terminal mounting hole, the outer cutting clamping part is clamped into the female terminal clamping notch.

[0034] In one preferred embodiment of the utility model, the male terminal is four, the spring is also four, four male terminals and four springs are evenly distributed on the male terminal support, and each spring corresponds to a male terminal;The female terminal is also four, the female terminal mounting hole is also four, and four female terminal mounting holes are evenly distributed on the female terminal connector body, and each female terminal passes into the corresponding female terminal mounting hole.

[0035] In one preferred embodiment of the utility model, four isolation plates are arranged on the male terminal support in a circumferential direction, each isolation plate is arranged between two male terminals, and the step plate is integrally connected with the four isolation plates, and each male terminal jack hole is located on the step plate between the two isolation plates.

[0036] In one preferred embodiment of the utility model, the four isolation plates are arranged in a cross shape.

[0037] In one preferred embodiment of the utility model, at least one support guide groove is arranged on the outer periphery of the male terminal support, at least one support guide block is arranged on the hole edge of the inner hole of the male terminal connector sleeve, and in the process that the male terminal support is inserted into the inner hole of the male terminal connector sleeve, the support guide block is inserted into the support guide groove, the process that the male terminal support is inserted into the inner hole of the male terminal connector sleeve is guided and the circumferential rotation of the male terminal support is limited.

[0038] In one preferred embodiment of the utility model, the support guide groove is arranged on the isolation plate.

[0039] Due to the adoption of the above technical scheme, the male terminal has a certain elasticity, and the electrical contact performance with the female terminal assembly is good. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is an exploded schematic view of the male terminal assembly of the utility model embodiment 1.

[0041] Figure 2It is the assembly schematic view of the male terminal and the male terminal support in the male terminal assembly of the utility model embodiment 1.

[0042] Figure 3 It is the assembly schematic view of the male terminal and the male terminal support in the male terminal assembly of the utility model embodiment 1.

[0043] Figure 4 It is the assembly schematic view of the male terminal and the male terminal support in the male terminal assembly of the utility model embodiment 1.

[0044] Figure 5 It is the structure schematic view of the male terminal assembly (remove the snap spring assembly) of the utility model embodiment 1.

[0045] Figure 6 It is the structure schematic view of the male terminal assembly (remove the snap spring assembly) of the utility model embodiment 1.

[0046] Figure 7 It is the structure schematic view of the male terminal assembly (remove the snap spring assembly) of the utility model embodiment 1.

[0047] Figure 8 It is the structure schematic view of the male terminal assembly (remove the snap spring assembly) of the utility model embodiment 1.

[0048] Figure 9 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0049] Figure 10 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0050] Figure 11 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0051] Figure 12 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0052] Figure 13 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0053] Figure 14 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0054] Figure 15 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0055] Figure 16 It is the structure schematic view of the male terminal support and the snap spring assembly installation process of the utility model embodiment 1.

[0056] Figure 17 It is one of assembly schematic view of spring, male terminal and male terminal support of the utility model embodiment 1.

[0057] Figure 18 It is two of assembly schematic view of spring, male terminal and male terminal support of the utility model embodiment 1.

[0058] Figure 19 It is the assembly structure schematic view between male terminal, spring, male terminal support and male connector cover of the utility model embodiment 1.

[0059] Figure 20 It is the assembly sectional view between male terminal, spring, male terminal support and male connector cover of the utility model embodiment 1.

[0060] Figure 21 It is the structure schematic view after assembly between male terminal, spring, male terminal support and male connector cover of the utility model embodiment 1.

[0061] Figure 22 It is the A-A sectional view of Figure 21 .

[0062] Figure 23 It is the structure schematic view of male terminal assembly of the utility model embodiment 1.

[0063] Figure 24 It is the A-A sectional view of Figure 23 .

[0064] Figure 25 It is the internal structure schematic view of male terminal assembly of the utility model embodiment 1.

[0065] Figure 26 It is one of structure schematic view of female terminal assembly of the utility model embodiment 1.

[0066] Figure 27 It is two of structure schematic view of female terminal assembly of the utility model embodiment 1.

[0067] Figure 28 It is the internal structure schematic view of female terminal assembly of the utility model embodiment 1.

[0068] Figure 29 It is the exploded schematic view of female terminal assembly of the utility model embodiment 1.

[0069] Figure 30 It is one of structure schematic view of female terminal connector body of the utility model embodiment 1.

[0070] Figure 31It is the structure schematic view two of the female terminal connector body of the embodiment 1 of the utility model.

[0071] Figure 32 It is the V-V section view of the embodiment 1 of the utility model. Figure 30

[0072] Figure 33 It is the W-W section view of the embodiment 1 of the utility model. Figure 30

[0073] Figure 34 It is the structure schematic view of the female terminal of the embodiment 1 of the utility model.

[0074] Figure 35 It is the connection schematic view between the female terminal and wire of the embodiment 1 of the utility model.

[0075] Figure 36 It is the internal structure schematic view of the male terminal assembly in initial state of the embodiment 1 of the utility model.

[0076] Figure 37 It is the plug-in schematic view of the male terminal assembly and female terminal assembly of the embodiment 1 of the utility model.

[0077] Figure 38 It is the exploded schematic view of the male terminal assembly of the embodiment 2 of the utility model.

[0078] Figure 39 It is the structure schematic view of the male connector outer cover of the embodiment 2 of the utility model.

[0079] Figure 40 It is the elastic structure schematic view of the embodiment 2 of the utility model.

[0080] Figure 41 It is the terminal fixed structure schematic view of the embodiment 2 of the utility model.

[0081] Figure 42 It is the plug-in schematic view of the male terminal assembly and female terminal assembly of the embodiment 2 of the utility model.

[0082] Figure 43 It is the structure schematic view of the male terminal assembly in initial state of the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0083] The utility model is described in detail below in combination with the drawings and specific embodiments.

[0084] Embodiment 1

[0085] Referring to Figures 1 to 37 , the plug-in connector shown in the figure includes: the male terminal assembly 100 and female terminal assembly 200 of mutual insertion.

[0086] Particularly referring to​​Figure 1 The male terminal assembly 100 comprises a male terminal holder 110, a male terminal connector jacket 120, four male terminals 130, and four elastic structures. The elastic structures in this embodiment are springs 140.

[0087] In particular reference to Figures 2 to 4 The male terminal holder 110 is composed of four isolation plates 111 and a step plate 112. The inner sides of the four isolation plates 111 are connected together in a cross shape and are connected together with the step plate 112. The step plate 112 is located at the middle position of the length direction of the four isolation plates 111.

[0088] A male terminal placement groove 113 is arranged between two adjacent isolation plates 111, and four male terminal clamping grooves 112a are arranged on the step plate 112.

[0089] Each male terminal clamping groove 112a is located in each male terminal placement groove 113. Thus, there are four male terminal placement grooves 113 and four male terminal clamping grooves 112a for mounting four male terminals 130. The four male terminal placement grooves 113 are uniformly distributed in the circumferential direction (of course, they can also be unevenly distributed, according to the needs).

[0090] A spring fixing portion 114 is arranged on the step plate 112 in each male terminal placement groove 113, for sleeving the four springs 140, so that the springs 140 are stable. Each male terminal clamping groove 112a is located at the periphery of each spring fixing portion 114.

[0091] In order to guide the insertion of the male terminal holder 110 into the male terminal connector jacket 120, a holder guide groove 111a is arranged on each of the two symmetrical isolation plates 111. In order to make the male terminal holder 110 inserted into the male terminal connector jacket 120 firmly and not easily pulled out, a holder clamping portion 115 is arranged on the outer wall of each of the other two isolation plates 111.

[0092] In particular reference to Figure 14 The male terminal 130 has a first end 131 of the male terminal, a second end 132 of the male terminal, and a male terminal intermediate connecting portion 133 for connecting the first end 131 of the male terminal and the second end 132 of the male terminal. The first end 131 of the male terminal and the second end 132 of the male terminal are oppositely arranged at the two ends of the male terminal intermediate connecting portion 133 in the axial direction. The height of each male terminal clamping groove 112a is less than the length of the male terminal intermediate connecting portion 133, so that the male terminal 130 can move axially on the male terminal holder 110.

[0093] The first end 131 of the male terminal is in electrical contact with the female terminal, so the first end 131 of the male terminal is closed and has a spring hole 131a, the middle connecting part 133 of the male terminal is radially open and has a terminal bevel part 134 at the connecting part of the middle connecting part 133 and the first end 131 of the male terminal; the second end 132 of the male terminal is used to be electrically connected with the wire, so the second end 132 of the male terminal is provided with a male terminal wire copper wire crimping part 132a and a male terminal wire plastic sheath crimping part 132b, the male terminal wire copper wire crimping part 132a is closer to the first end 131 of the male terminal than the male terminal wire plastic sheath crimping part 132b.

[0094] In combination with Figure 13 , the wire 160 is inserted into the second end 132 of the male terminal, wherein the male terminal wire copper wire crimping part 132a crimps the copper wire 161 of the wire 160, and the male terminal wire plastic sheath crimping part 132b crimps the plastic sheath 162 of the wire 160, so that the second end 132 of the male terminal is firmly electrically connected with the wire 160.

[0095] The assembly of the four male terminals 130 and the four springs 140 with the male terminal holder 110 can be seen from Figures 15 to 18 , first, the second ends of the four springs 140 are respectively sleeved on the spring fixing parts 114 and make the second ends of the four springs 140 act on the stepped plate 112; then the middle connecting parts 133 of the four male terminals 130 are respectively clamped into the four male terminal clamping grooves 112a, and the first ends of the four springs 140 are compressed and then placed into the spring holes 131a of the four male terminals 130, at this time, under the action of the four springs 140, plus the height of each male terminal clamping groove 112a is less than the length of the middle connecting part 133 of the male terminal, so the male terminal 110 can move axially on the male terminal holder 110.

[0096] In particular, referring to Figures 5 to 8 , the male terminal connector sleeve 120 has an inner hole 121 for inserting the male terminal holder 110, the shape of the inner hole 121 is matched with the shape of the male terminal holder 110. The male terminal connector sleeve 120 is inserted into the inner hole 121 of the female terminal connector body 120 at one end and is provided with an insertion boss 122 and four evenly distributed male terminal through holes 123. In addition, the insertion boss 122 is evenly provided with four male terminal through grooves 122a, and each male terminal through hole 123 is located in each male terminal through groove 122a and communicates the inner hole 121 and the male terminal through groove 122a.

[0097] Two bracket guide blocks 124 are symmetrically arranged on the hole edge of the inner hole 121 of the male terminal connector sleeve 120. Two elastic pieces 125 are symmetrically arranged on the sleeve wall of the male terminal connector sleeve 120, and a terminal bracket fixing hole 125a is arranged on each elastic piece 125. In addition, a circle of terminal stroke limiting parts 126 is arranged on the inner hole 121 of the male terminal bracket 110. The terminal stroke limiting part 126 is a beveled step surface.

[0098] In addition, two snap spring part mounting grooves 127 are symmetrically arranged on the outer periphery of the male terminal connector sleeve 120, each of which is defined by a pair of groove edges 128 arranged on the outer periphery of the male terminal connector sleeve 120, and a snap spring fixing pin shaft mounting hole 128a is arranged on each groove edge 128; the snap spring fixing pin shaft mounting holes 128a on the pair of groove edges 128 are coaxially aligned.

[0099] In particular, referring to Figures 19 to 25 The male terminal bracket 110 assembled with the four male terminals 130 and the four springs 140 is inserted into the inner hole 121 of the male terminal connector sleeve 120 from the end of the inner hole 121 of the female terminal connector body 120 away from the male terminal connector sleeve 120, and during the insertion process, the two bracket guide blocks 124 on the hole edge of the inner hole 121 of the male terminal connector sleeve 120 are inserted into the two bracket guide grooves 111a on the male terminal bracket 110 to guide the insertion process of the male terminal bracket 110 and ensure that the male terminal bracket 110 is stably inserted into the inner hole 121 of the male terminal connector sleeve 120 and is limited from rotating circumferentially.

[0100] After the male terminal bracket 110 is inserted into the inner hole 121 of the male terminal connector sleeve 120 in place, the two bracket clamping parts 115 on the male terminal bracket 110 are clamped into the corresponding terminal bracket fixing holes 125a on the male terminal connector sleeve 120, so that the male terminal bracket 110 is stably inserted into the inner hole 121 of the male terminal connector sleeve 120. At this time, the first ends 131 of the four male terminals 130 pass through the male terminal through holes 123 and enter the corresponding male terminal through grooves 122a, and due to the cooperation of the terminal stroke limiting parts 126 with the terminal beveled edge parts 134 on each male terminal 130, the stroke of the first end of the male terminal 130 out of the male terminal connector sleeve 120 is limited, thereby limiting the four male terminals 130 from being excessively pushed out by the four springs 140.

[0101] In particular, referring to Figure 1In order to clamp the male terminal assembly 100 on some connection member (such as the headrest rod in CN117996532A) pre-installed with the female terminal assembly 200, the male terminal assembly 100 of this embodiment further comprises two clamping spring assemblies 150. The clamping spring assemblies 150 are used to clamp the male terminal assembly 100 after being inserted into the female terminal assembly 200 and the connection member (such as the headrest rod in CN117996532A) pre-installed with the female terminal assembly 200.

[0102] Referring to Figs. 1 and 2, Figure 11 and Figure 12 , each clamping spring assembly 150 comprises a clamping spring 151, a clamping spring restoring part 152 and a clamping spring fixing pin 153. The middle position axis of the clamping spring 151 is arranged on the clamping spring fixing pin 153. One end of the clamping spring restoring part 152 is fixed on the clamping spring fixing pin 153, and the other end is a free end. One end of the clamping spring 151 is provided with a clamping spring hook 151a for clamping the connection member (such as the headrest rod in CN117996532A), and the other end is provided with a clamping spring pressing unlocking part 151b, which is arranged on the side of the other end of the clamping spring 151 away from the clamping spring restoring part 152.

[0103] Referring to Figs. 1 and 2, Figure 9 and Figure 10 , when the clamping spring assembly 150 is assembled, it is clamped into the clamping spring component mounting groove 127 from the direction perpendicular to the axis of the clamping spring fixing pin mounting hole 128a, and the two ends of the clamping spring fixing pin 153 are clamped into the clamping spring fixing pin mounting hole 128a on the two slot edges 128. Pressing the clamping spring pressing unlocking part 151b of the clamping spring 151 is to unlock the clamping spring assembly 150, which can make the male terminal assembly 100 pulled out of the connection member.

[0104] Referring to Fig. 2, Figures 26 to 35 , the female terminal assembly 200 comprises a female terminal connector body 210 and four female terminals 220.

[0105] The female terminal connector body 210 has an inner hole 211 for inserting the insertion boss 122 on the male terminal connector sleeve 120. Four female terminal mounting holes 212 are arranged in the female terminal connector body 210, which are evenly distributed in the circumferential direction. A female terminal clamping notch 213 is arranged on the hole wall of the female terminal connector body 210 corresponding to each female terminal mounting hole 212. In addition, four wire passing holes 214 are evenly arranged on one end wall of the female terminal connector body 210.

[0106] Each female terminal 220 has a first end 221 of the female terminal, a second end 222 of the female terminal, and an intermediate connecting portion 223 of the female terminal connecting the first end 221 of the female terminal with the second end 222 of the female terminal; the second end 222 of the female terminal is provided with a female terminal wire copper wire crimping portion 222a and a female terminal wire plastic sheath crimping portion 222b, the female terminal wire copper wire crimping portion 222a is closer to the first end 221 of the female terminal than the female terminal wire plastic sheath crimping portion 222b. An outer cutting clamping portion 224 is arranged on the intermediate connecting portion 223 of the female terminal 220.

[0107] When the four female terminals 220 are assembled with the female terminal connector body 210, the intermediate connecting portions 223 of the four female terminals 220 are inserted through the female terminal mounting holes 212 and the outer cutting clamping portions 224 on each female terminal 220 are clamped into the corresponding female terminal clamping notches 213. The four wires 230 are inserted through the wire insertion holes 214.

[0108] Particularly referring to Figure 36 and Figure 37 , the plug terminal assembly 100 and the female terminal assembly 200 are inserted as follows:

[0109] When the plug terminal assembly 100 is inserted towards the inner hole 211 of the female terminal assembly 200, after the insertion protrusion 122 on the plug terminal connector outer sleeve 120 in the plug terminal assembly 100 is inserted into the inner hole 211 of the female terminal assembly 200, at this time, each plug terminal 130 is moved towards the female terminal 220 in the female terminal assembly 200 under the action of the spring 140, so that the end of the first end 131 of each plug terminal forms good electrical contact with the end of the first end 221 of the corresponding female terminal, and the action of the spring 140 can keep the end of the first end 131 of each plug terminal and the end of the first end 221 of the corresponding female terminal at a certain contact pressure; at this time, the one end of the clamping spring 151, i.e. the clamping spring hook 151a, is clamped firmly with the connecting member (for example, the headrest rod in CN117996532A). When the plug terminal assembly 100 needs to be pulled out of the female terminal assembly 200, the clamping spring pressing unlocking portion 151b on the clamping spring 151 is pressed to unlock the clamping spring assembly 150, so that the plug terminal assembly 100 can be pulled out of the connecting member and at the same time the plug terminal assembly 100 can be pulled out of the female terminal assembly 200.

[0110] Embodiment 2

[0111] Referring to Figures 38 to 43The embodiment differs from Embodiment 1 in that the elastic structure includes an elastic member 141 and a terminal fixing member 142, the first end 131 of the male terminal is closed and has a terminal fixing member insertion hole 131b (the spring hole 131a of Embodiment 1 can also be used directly), the first end of the terminal fixing member 142 is inserted into the terminal fixing member insertion hole 131b, and the end of the first end of the terminal fixing member 142 acts on the end of the closed first end 131 of the male terminal.

[0112] The spring fixing portion 114 of the stepped plate 112 of Embodiment 1 is removed, and an elastic member mounting hole 114a is provided at the position where the spring fixing portion 114 of Embodiment 1 is provided, each male terminal engaging slot 112a is located at the periphery of each elastic member mounting hole 114a, the second end of the elastic member 141 is positioned in the elastic member mounting hole 114a and acts on the surface of the stepped plate 112 opposite the first end 131 of the male terminal.

Claims

1. A plug connector, comprising: The plug-in male terminal assembly and female terminal assembly are characterized in that the male terminal assembly includes a male terminal bracket; a male connector housing, wherein the male terminal support is inserted into an inner hole of the male connector housing; At least one male terminal is disposed on the male terminal support and is located in the male connector housing, wherein the first end of the male terminal extends out of the inner hole of the male connector housing; At least one elastic structure drives the first end of the male terminal to pass through the male connector sleeve, and at the same time, a limiting structure is provided between the male terminal and the male terminal connector sleeve, and the limiting structure is used to limit the travel of the first end of the male terminal to pass through the male connector sleeve.

2. A plug connector according to claim 1, characterized in that: The limiting structure includes a terminal travel limiting portion arranged in the inner hole of the male connector sleeve and a terminal bevel portion arranged in the middle position of the male terminal. The terminal travel limiting portion interacts with the terminal bevel portion to limit the travel of the first end of the male terminal out of the male connector sleeve.

3. A plug connector according to claim 2, characterized in that: The male terminal also has a second end of the male terminal axially opposite to the first end of the male terminal, and the second end of the male terminal is used to electrically connect to the wire; a male terminal wire copper wire crimping portion and a male terminal wire plastic sheath crimping portion are provided at the second end of the male terminal, and the male terminal wire copper wire crimping portion is closer to the first end of the male terminal than the male terminal wire plastic sheath crimping portion is to the first end of the male terminal.

4. A plug connector according to claim 3, characterized in that: The first end of the male terminal is connected to the second end of the male terminal through a male terminal intermediate connecting portion, wherein the terminal oblique edge portion is provided at the connection between the male terminal intermediate connecting portion and the first end of the male terminal.

5. The plug connector according to claim 4, characterized in that: The elastic structure is a spring, the first end of the male terminal is closed and has a spring hole, the first end of the spring is inserted into the spring hole and the tip of the first end of the spring acts on the closed end of the first end of the male terminal.

6. The plug connector according to claim 5, characterized in that: There are four male terminals and four springs. The four male terminals and four springs are evenly distributed circumferentially on the male terminal bracket, and each spring corresponds to a male terminal; there are four female terminals and four female terminal mounting holes. The four female terminal mounting holes are evenly distributed circumferentially on the female terminal connector body, and each female terminal is inserted into the corresponding female terminal mounting hole.

7. The plug connector according to claim 6, characterized in that: The middle connecting portion of the male terminal is radially open, so that the male terminal is exposed from the middle of the spring to the second end of the spring and the second end of the spring acts on the male terminal bracket.

8. The plug connector according to claim 7, characterized in that: At least one male terminal snap-in groove is provided on the male terminal bracket, and the connection between the middle connecting portion of the male terminal and the second end of the male terminal is snapped into the male terminal snap-in groove, and the first end of the male terminal and the second end of the male terminal are axially arranged at both ends of the axial direction of the male terminal snap-in groove.

9. The plug connector according to claim 8, characterized in that: A step plate is provided at the position where the male terminal clip-in groove is provided on the male terminal bracket, the male terminal clip-in groove is provided on the step plate and passes through the step plate, at least one spring fixing portion is provided on the step plate, each male terminal clip-in groove is located at the periphery of the spring fixing portion; the second end of the spring is sleeved on the spring fixing portion and acts on the surface of the step plate opposite to the first end of the male terminal, the male terminal clip-in groove is located at the periphery of the spring fixing portion, the height of each male terminal clip-in groove is less than the length of the middle connecting portion of the male terminal, so that the male terminal can move axially on the male terminal bracket.

10. The plug connector according to claim 9, characterized in that: Four isolation plates are circumferentially arranged on the male terminal bracket, each isolation plate is arranged between two male terminals, the step plate is integrally connected to the four isolation plates, and each male terminal jack is located on the step plate between two isolation plates.

11. The plug connector according to claim 4, characterized in that: The elastic structure includes an elastic element and a terminal fixing element. The first end of the male terminal is closed and has a terminal fixing element insertion hole. The first end of the terminal fixing element is inserted into the terminal fixing element insertion hole and the tip of the first end of the terminal fixing element acts on the closed end of the first end of the male terminal. The second end of the terminal fixing element acts on the first end of the elastic element, and the second end of the elastic element acts on the male terminal bracket.

12. The plug connector according to claim 11, characterized in that: A step plate is provided at the position where the male terminal clip-in groove is provided on the male terminal bracket, the male terminal clip-in groove is provided on the step plate and passes through the step plate, at least one elastic element mounting hole is provided on the step plate, each male terminal clip-in groove is located at the periphery of each elastic element mounting hole, the second end of the elastic element is positioned in the elastic element mounting hole and acts on the surface of the step plate opposite to the first end of the male terminal.

13. The plug connector according to claim 12, characterized in that: Four isolation plates are circumferentially arranged on the male terminal bracket, each isolation plate is arranged between two male terminals, the step plate is integrally connected to the four isolation plates, and each male terminal jack is located on the step plate between two isolation plates.

14. A plug connector according to any one of claims 12 or 13, characterized in that: At least one bracket clamping portion is provided on the male terminal bracket, and at least one terminal bracket fixing hole is provided on the male end connector sleeve; after the male terminal bracket is inserted into the inner hole of the male end connector sleeve, the bracket clamping portion is clamped in the terminal bracket fixing hole.

15. The plug connector according to claim 14, characterized in that: At least one elastic piece is provided on the male connector housing, and the terminal support fixing hole is provided on the elastic piece.

16. The plug connector according to claim 15, characterized in that: At least one retaining spring component mounting groove is provided on the outer periphery of the male connector sleeve; the male terminal assembly of the plug connector further comprises at least one retaining spring assembly, which is mounted in the retaining spring component mounting groove; the retaining spring assembly is used to insert the male terminal assembly into the female terminal assembly and then engage with the connector pre-installed with the female terminal assembly, and after pressing the retaining spring assembly to unlock it, the male terminal assembly can be pulled out of the connector.

17. The plug connector according to claim 16, characterized in that: The clamping spring assembly includes a clamping spring, a clamping spring recovery part and a clamping spring fixing pin shaft, the middle position axis of the clamping spring is arranged on the clamping spring fixing pin shaft, one end of the clamping spring recovery part is fixed on the clamping spring fixing pin shaft, and the other end of the clamping spring recovery part is a free end; one end of the clamping spring is provided with a clamping spring hook for clamping with the connecting piece, and the other end of the clamping spring is provided with a clamping spring press unlocking part, and the clamping spring press unlocking part is arranged on the side of the other end of the clamping spring facing away from the clamping spring recovery part; the clamping spring component mounting groove is defined by a pair of groove boundaries arranged on the outer peripheral edge of the male end connector sleeve, and a clamping spring fixing pin shaft mounting hole is provided on each groove edge; the clamping spring fixing pin shaft mounting holes on a pair of groove edges are coaxially aligned, and when the clamping spring assembly is assembled, it is clamped into the clamping spring component mounting groove from a direction perpendicular to the axis of the clamping spring fixing pin shaft mounting hole and the two ends of the clamping spring fixing pin shaft are clamped into the clamping spring fixing pin shaft mounting holes on a pair of groove edges.

18. The plug connector according to claim 15, characterized in that: The female terminal assembly includes a female terminal connector body and at least one female terminal, the female terminal having a first end of the female terminal, a second end of the female terminal and a female terminal intermediate connection portion for connecting the first end of the female terminal with the second end of the female terminal; the female terminal connector body has an inner hole, and at least one female terminal mounting hole is provided in the female terminal connector body, the female terminal passes through the female terminal mounting hole and is clamped with the female terminal connector body; an insertion boss is provided at the end of the male connector sleeve that is inserted into the inner hole of the female terminal connector body, and the insertion boss is inserted into the inner hole of the female terminal connector body; the first end of the male terminal is distributed on the periphery of the insertion boss, and the first end of the male terminal is electrically in contact with the first end of the female terminal; the second end of the female terminal is used to be electrically connected to the wire.

19. The plug connector according to claim 18, characterized in that: The second end of the female terminal is provided with a female terminal wire copper wire crimping portion and a female terminal wire plastic skin crimping portion, and the female terminal wire copper wire crimping portion is closer to the first end of the female terminal than the female terminal wire plastic skin crimping portion is to the first end of the female terminal.

20. The plug connector according to claim 19, characterized in that: An outward-facing snap-fitting portion is provided on the female terminal, and a female terminal snap-fitting slot is provided at a position corresponding to the female terminal mounting hole. After the female terminal passes through the female terminal mounting hole, the outward-facing snap-fitting portion is snapped into the female terminal snap-fitting slot.

21. The plug connector according to claim 16, characterized in that: Four isolation plates are circumferentially arranged on the male terminal bracket, each isolation plate is arranged between two male terminals, the step plate is integrally connected to the four isolation plates, and each male terminal jack is located on the step plate between two isolation plates.

22. The plug connector according to claim 21, characterized in that: The four isolation plates are arranged in a cross shape.

23. The plug connector according to claim 21, characterized in that: At least one bracket guide groove is provided on the outer periphery of the male terminal bracket, and at least one bracket guide block is provided on the hole edge of the inner hole of the male end connector sleeve. During the process of inserting the male terminal bracket into the inner hole of the male end connector sleeve, the bracket guide block is inserted into the bracket guide groove to guide the male terminal bracket during the insertion process into the inner hole of the male end connector sleeve and limit the circumferential rotation of the male terminal bracket.

24. The plug connector according to claim 23, characterized in that: The bracket guide groove is configured on the isolation plate.

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