CN103887626B - Coaxial connector - Google Patents

Abstract

A coaxial connector includes: a housing, an insulating base, a central terminal, a first connecting terminal, and a second connecting terminal. The first connection terminal includes a first welding arm extending from the outside of the housing to the second end of the insulating base, and a fixing arm integrally connected with the first welding arm and extending into the channel of the insulating base. The second connection terminal includes a second welding arm extending from the outside of the housing to the second end of the insulating base, and an elastic arm integrally connected with the second welding arm and extending into the channel. When the mating connector is not coupled to the joint portion of the housing, the switching end of the central terminal leaves the elastic arm, so that the elastic arm is electrically connected to the fixed arm; when the mating connector is coupled to the coupling portion, the switching end of the central terminal and the The elastic arm is electrically connected and pressed to elastically deform the elastic arm, so that the elastic arm is separated from the electrical connection with the fixed arm. The coaxial connector can reduce the number of electrical connections of conductive parts through mechanical contact, thereby reducing contact resistance and improving the transmission performance of electrical signals.

Description

coaxial connector

technical field

The present invention relates to a coaxial connector, in particular to a coaxial connector capable of controlling switching of signal transmission paths.

Background technique

During the transmission of electrical signals, a coaxial connector is usually used to realize the electrical connection between two electronic devices. For example, in a wireless communication system, coaxial connectors are usually used to transmit electrical signals between wireless transceiver devices such as antennas and electronic equipment such as televisions, vehicle positioning devices, and vehicle navigation devices, so that both Realize the shielding of electrical signals, ensure that the signal distortion is small, and can be connected conveniently.

FIG. 15 shows a cross-sectional view of a coaxial connector 300 and a mating connector 400 in the prior art. The coaxial connector 300 includes a shell 301 , a central terminal 302 , a metal inner sleeve 303 , a spring 304 , an insulating shell 305 , an insulating base 306 , and a switch terminal 307 . The insulating shell 305 is installed in the accommodation portion of the shell 301, the insulating base 306 is installed in the insulating shell 305, the switch terminal 307 is installed between the insulating shell 305 and the insulating base 306, and the spring 304 is installed between the metal inner sleeve 303 and the insulating base. Between the bottoms of the seat 306 , the central terminal 302 passes through the spring 304 and the metal inner sleeve 303 and extends into the junction of the outer shell 301 .

In the state where the mating connector 400 is not combined with the coaxial connector 300, due to the elastic force of the spring 304, the metal inner sleeve 303 is in contact with the switch terminal 307 and the center terminal 302 respectively, so that the switch terminal 307 contacts the center terminal through the metal inner sleeve 303. 302 electrical connection. In the state where the mating connector 400 is coupled to the coaxial connector 300, the mating terminal 401 of the mating connector 400 is electrically connected to the center terminal 302, and at the same time the spring 304 is compressed, and the metal inner sleeve 303 leaves the switch terminal 307, so that the switch terminal 307 The electrical connection to the center terminal 302 is disconnected.

In the above-mentioned coaxial connector 300, the electrical connection between the switch terminal 307 and the center terminal 302 needs to be realized through two mechanical contacts between the switch terminal 307 and the metal inner sleeve 303 and between the metal inner sleeve 303 and the center terminal 302. , too much mechanical contact will affect the transmission of electrical signals from the switch terminal 307 to the center terminal 302 . Specifically, mechanical contact will result in a contact voltage, and since the center terminal 302 and the metal inner sleeve 303 have arc-shaped contact surfaces, and the metal inner sleeve is inclined during contact, the switch terminal 307 and the metal inner sleeve will The contact area between 303 and between the metal inner sleeve 303 and the central terminal 302 is small, and the resistance is large, which affects the transmission performance of electrical signals, especially high-frequency electrical signals. In addition, in the state where the coaxial connector 300 is not combined with the mating connector 400, the size of the conductive path formed by the switch terminal 307, the metal inner sleeve 303 and the center terminal 302 is relatively long. For the signal transmission system, this conductive path will An antenna-like function is produced, which further affects the performance of the entire signal transmission system.

Contents of the invention

The invention provides a coaxial connector, which can reduce the number of electrical connections of conductive parts through mechanical contact, thereby reducing contact resistance and improving the transmission performance of electrical signals.

According to a further aspect of the present invention, there is provided a coaxial connector, comprising: a housing including a coupling portion for combining with a mating connector and an accommodating portion; an insulating base mounted on the accommodating portion , and includes a first end facing the joint, a second end opposite to the first end, and a channel passing through the first end and the second end; a central terminal configured to be able to The center terminal includes a connection end arranged in the joint portion for electrical connection with the mating connector, and a switching end opposite to the connection end; a first connection terminal includes a a first welding arm extending from the exterior of the housing to the second end of the insulating base, and a fixed arm integrally connected with the first welding arm and extending into the channel; and a second connection The terminal includes a second welding arm extending from the outside of the housing to the second end of the insulating base, and an elastic arm integrally connected with the second welding arm and extending into the channel. Wherein, when the mating connector is not coupled to the joint part, the switching end of the central terminal leaves the elastic arm, so that the elastic arm is electrically connected to the fixed arm; when the mating connector When coupled to the joint portion, the switching end of the central terminal is electrically connected to the elastic arm and presses the elastic arm to undergo elastic deformation, so that the elastic arm is separated from the electrical connection with the fixed arm.

In the above-mentioned coaxial connector, the fixed arm of the first connecting terminal extends in the channel along a direction substantially parallel to the axial direction of the channel; the elastic arm of the second connecting terminal extends in the channel extending in a direction oblique to the axial direction of the channel.

In the above coaxial connector, the elastic arm is provided with a contact arm extending toward the fixed arm at a predetermined distance away from the free end of the elastic arm, and when the mating connector is not coupled to the When the connecting part is connected, the contact arm is electrically connected with the fixed arm; when the mating connector is connected to the connecting part, the switching end of the central terminal is electrically connected with the elastic arm and presses the The elastic arm is elastically deformed, so that the contact arm is separated from the electrical connection with the fixed arm.

In the above coaxial connector, the contact arm has a substantially L-shape, and when the mating connector is coupled to the coupling portion, the switching end of the central terminal can be inserted into the L-shaped contact arm. and elastic arm.

In the above coaxial connector, the contact arm has a substantially circular through hole into which the switching end of the center terminal can be inserted when the mating connector is coupled to the coupling portion. middle.

In the above coaxial connector, the elastic arm is provided with a groove corresponding to the switching end of the central terminal.

In the above coaxial connector, the fixed arm of the first connecting terminal extends in the channel along a direction substantially perpendicular to the axial direction of the channel; the elastic arm of the second connecting terminal extends in the channel Extending in a direction substantially perpendicular to the axial direction of the channel, the elastic arm is configured to be detachably electrically connected to the fixing arm.

In the above coaxial connector, the first connection terminal and the second connection terminal are respectively provided with at least one mounting portion for fixing the first connection terminal and the second connection terminal to the insulating base .

In the above coaxial connector, two notches are provided on the receiving portion of the housing, and the first welding arm and the second welding arm respectively pass through the corresponding notches.

In the above coaxial connector, grooves for accommodating the first soldering arm and the second soldering arm are provided on the surface of the second end of the insulating base.

In the above-mentioned coaxial connector, the housing further includes a first annular flange located between the coupling portion and the receiving portion and extending radially inward, and the central terminal further includes a flange located between the connecting end and the receiving portion. a second annular flange extending radially outward between the switching ends, the first annular flange blocks movement of the second annular flange from the accommodating portion into the joint portion, and an elastic member is mounted on Between the second annular flange and the first end of the insulating base.

In the above coaxial connector, the first end of the insulating base is provided with a supporting portion for supporting one end of the elastic member.

The coaxial connector further includes a mobile base, the mobile base includes: a main body part, the main body part can move through the first annular flange, and the connecting end of the central terminal passes through the main body portion; and a third annular flange extending radially outward from the main body portion and positioned between the first annular flange and the second annular flange.

In the above coaxial connector, the housing further includes at least one positioning protrusion located outside the joint portion, the positioning protrusion is configured to position the mating connector on the housing.

According to another embodiment of the present invention, a connector assembly is provided, including: a coaxial connector as described in any one of the above embodiments; and a circuit board, the circuit board includes two The connecting portion for electrically connecting the first welding arm and the second welding arm.

According to the coaxial connector of various embodiments of the present invention, when the coaxial connector is combined with the mating connector, the electrical connection between the central terminal and the second connecting terminal is realized through the movement of the central terminal, and the second connecting terminal is disconnected at the same time. The electrical connection between the first connection terminal and the second connection terminal can reduce the number of electrical connections of the conductive parts through mechanical contact, thereby reducing contact resistance and improving the transmission performance of electrical signals.

Description of drawings

The present invention will be described in further detail with reference to accompanying drawing, wherein:

1 is a sectional view showing a coaxial connector according to an exemplary embodiment of the present invention;

Fig. 2 is a bottom view showing the coaxial connector shown in Fig. 1;

Figure 3 is a top view showing a circuit board to be used in conjunction with the coaxial connector shown in Figure 1;

Figure 4A is a bottom view showing the insulating base in the coaxial connector shown in Figure 1;

Figure 4B is a sectional view showing the line A-A of Figure 4A;

Fig. 4C is a sectional view showing along line B-B of Fig. 4A;

FIG. 5 is a schematic perspective view showing a first connection terminal in the coaxial connector shown in FIG. 1;

6A is an axial sectional view showing the first connection terminal shown in FIG. 5;

FIG. 6B is a top view showing the first connecting terminal shown in FIG. 5;

FIG. 6C is a right side view showing the first connecting terminal shown in FIG. 5;

Fig. 7 is a schematic perspective view showing an exemplary embodiment of a second connection terminal in the coaxial connector shown in Fig. 1;

8A is an axial sectional view showing the second connection terminal shown in FIG. 7;

FIG. 8B is a top view showing the second connecting terminal shown in FIG. 7;

FIG. 8C is a left side view showing the second connecting terminal shown in FIG. 7;

Fig. 9 is a schematic perspective view showing another exemplary embodiment of a second connection terminal according to the present invention;

Fig. 10 is a side view showing a housing in the coaxial connector shown in Fig. 1;

Fig. 11 is a cross-sectional view showing the coaxial connector shown in Fig. 1 before being connected to the mating connector;

Fig. 12 is a cross-sectional view showing the coaxial connector shown in Fig. 1 after being connected to the mating connector;

Fig. 13 shows a cross-sectional view of a coaxial connector according to another exemplary embodiment of the present invention;

Figure 14 is a cross-sectional view showing the coaxial connector shown in Figure 13 after being connected to the mating connector; and

FIG. 15 is a cross-sectional view showing a prior art coaxial connector and a mating connector.

detailed description

While the present invention will be fully described with reference to the accompanying drawings containing preferred embodiments of the invention, it should be understood before proceeding that those skilled in the art may modify the invention described herein while obtaining the technical effects of the present invention. Therefore, it should be understood that the above description is a broad disclosure for those skilled in the art, and its content is not intended to limit the described exemplary embodiments of the present invention.

1-12 illustrate a coaxial connector according to an exemplary embodiment of the present invention. The coaxial connector 100 of the present invention can be used to realize the electrical connection between two electronic devices. For example, in a wireless communication system, the coaxial connector 100 of the present invention can be used to realize the transmission of electrical signals between wireless transceiver devices such as antennas and electronic equipment such as televisions, vehicle positioning devices, and vehicle navigation devices. . A coaxial connector 100 according to an exemplary embodiment of the present invention includes: a substantially cylindrical housing 1, including a joint portion 11 for combining with a mating connector 200 (see FIGS. 11 and 12 ) and An accommodating portion 12; an insulating base 2, installed in the accommodating portion 12 of the housing 1, and including a first end (upper end in FIG. 1 ) facing the joint portion 11, and a second end opposite to the first end (the lower end in Fig. 1), and the channel 21 that runs through the first end and the second end in the axial direction; a central terminal 3 with a roughly ten-shaped shape, and the central terminal 3 is configured to be able to be placed in the channel 21 and includes a connection end 31 arranged in the joint portion 11 for electrical connection with the mating connector 200, and a switching end 32 opposite to the connection end 31; a first connection terminal 4, including a connection from the housing 1 A first welding arm 41 extending from the outside to the second end of the insulating base 2, and a stationary fixed arm 42 integrally connected with the first welding arm 41 and extending into the channel 21; and a second connecting terminal 5, including a A second welding arm 51 extending from the outside of the housing 1 to the second end of the insulating base 2 , and an elastic arm 52 integrally connected with the second welding arm 51 and extending into the channel 21 . Referring to Figures 11 and 12, when the mating connector 200 is not coupled to the joint portion 11 of the housing 1, the switching end 32 of the central terminal leaves the elastic arm 52, so that the elastic arm 52 is electrically connected to the fixed arm 42; when the mating connector When the 200 is coupled to the coupling portion 11 , the switching end 32 of the central terminal 3 is electrically connected to the elastic arm 52 and presses the elastic arm 52 to undergo elastic deformation, so that the elastic arm 52 is disconnected from the electrical connection with the fixed arm 42 .

1, 5-8C, in the coaxial connector of the present invention, the fixed arm 42 of the first connection terminal 4 is roughly opposite to the elastic arm 52 of the second connection terminal 5 in the channel. The first connecting terminal 4 has a substantially L shape, and the fixing arm 42 extends in the channel 21 of the insulating base 2 in a direction substantially parallel to the axial direction of the channel 21 . The main body portion of the second connection terminal 5 also has a substantially L shape, and the elastic arm 52 extends in the channel 21 in a direction inclined to the axial direction of the channel 21 . Further, the elastic arm 52 is provided with a contact arm 53 extending toward the fixed arm 42 at a predetermined distance (D) away from the free end (upper end in FIG. 8A ) of the elastic arm 52 . Referring to FIG. 11 , when the mating connector is not coupled to the coupling portion, the free end of the elastic arm 52 extends obliquely from the side of the second connection terminal 5 toward the side of the first connection terminal 4 beyond the channel 21 axis, and the contact arm 53 is electrically connected to the fixed arm 42 due to the elastic force of the elastic arm 52 . On the other hand, referring to FIG. 12 , during the process of coupling the mating connector 200 to the joint part 11, the switch end 32 of the central terminal 3 first makes mechanical contact with the free end of the elastic arm 52 and is electrically connected, and presses the elastic arm 52 to generate The elastic deformation means that the elastic arm 52 shrinks toward the inner wall of the channel 21 on the side of the second connecting terminal 5 , so that the contact arm 53 is detached from the electrical connection with the fixing arm 42 .

Further, the contact arm 53 is formed by bending at the side of the elastic arm 52 and has a substantially L-shape. After contacting and biasing the free end of the elastic arm 52 , it is inserted between the L-shaped contact arm 53 and the elastic arm 52 . In this way, the switching end 32 is surrounded by the L-shaped contact arm 53, and the switching end 32 and the elastic arm 52 are respectively electrically connected at the free end and the L-shaped contact arm 53, while improving the mechanical stability of the switching end 32, It also increases the electrical contact area between the switching end 32 and the elastic arm 52, reducing the contact resistance.

In a further embodiment of the second connecting terminal 5 , the elastic arm 52 is provided with a groove 521 corresponding to the switching end 32 of the central terminal 3 . The groove 521 can further increase the electrical connection area between the switching end 32 and the elastic arm 52 .

In an alternative embodiment of the second connecting terminal, the contact arm has a substantially circular through hole, and when the mating connector is coupled to the coupling part, the switching end of the central terminal can be inserted into into the through hole. In this way, the contact area between the switching end 32 of the central terminal 3 and the elastic arm can also be increased.

Referring again to FIG. 1 , in a further exemplary embodiment of the coaxial connector 100 according to the present invention, the housing 1 further includes a first annular protrusion located between the joint portion 11 and the receiving portion 12 and extending radially inward. Edge 14. The central terminal 3 further includes a second annular flange 33 located between the connection end 31 and the switching end 32 and extending radially outward. The first annular flange 14 blocks the movement of the second annular flange 33 from the receiving portion 12 to the joint. Section 11. An elastic member 6 such as a spring is installed between the second annular flange 33 and the upper portion (first end) of the insulating base 2 . Furthermore, the first end of the insulating base 2 is provided with a support portion 22 for supporting one end of the elastic component 6 . The support part 22 can be an annular protrusion protruding from the upper part of the insulating base 2 for accommodating the lower end of the elastic component 6 to maintain the stability of the elastic component 6 . In addition, the supporting portion 22 with the annular boss structure can also block the movement of the second annular flange 33, thereby limiting the moving distance of the entire central terminal 3, and ensuring that the connecting end 31 of the central terminal 3 is mated with the mating terminal of the mating connector 200 201 is fully electrically connected.

The coaxial connector 100 of the present invention further includes a movable base 7 made of insulating material, and the movable base 7 includes: a substantially cylindrical main body and a third annular flange 72 . The main body can move through the first annular flange 14 of the housing 1 , and the connection end 31 of the central terminal 3 passes through the main body to position the connection end 31 . In addition, the main body can also protect the connecting end 31 from being damaged during the combination process of the coaxial connector 100 and the mating connector 200 . The third annular flange 72 radially extends outward from the main body, and is located between the first annular flange 14 of the housing 1 and the second annular flange 33 of the central terminal 3 . The outer diameter of the third annular flange 72 is greater than the inner diameter of the first annular flange 14, like this, allows the main body portion of the mobile base 7 to pass through the first annular flange 14, but prevents the third annular flange 72 from passing through the first annular flange 14. Ring flange 14. In this way, when the mating connector 200 is not coupled to the coupling portion 11 of the housing 1 , due to the elastic force of the elastic member 6 , the first annular flange 14 , the third annular flange 72 and the second annular flange 33 are sequentially in close contact. During the process of coupling the mating connector 200 to the joint portion 11 of the housing 1, as shown in FIG. Overcome the elastic force of the elastic member 6 and move toward the accommodation portion 12 of the housing 1 , and at the same time drive the main body of the mobile base 7 to pass through the first annular flange 14 and move toward the accommodation portion 12 . During the movement of the central terminal 3 , the switching end 32 first mechanically contacts and electrically connects with the outer side of the free end of the elastic arm 52 , and presses the elastic arm 52 to undergo elastic deformation, so that the contact arm 53 breaks away from the electrical connection with the fixed arm 42 . In this way, the elastic arm 52 switches from the state of being electrically connected with the fixed arm 42 to the state of being electrically connected with the central terminal 3 .

Referring to FIGS. 1 , 2 and 5 , the housing 1 further includes at least one positioning protrusion 15 located outside the coupling portion 11 , and the positioning protrusion 15 is configured to position the mating connector 200 on the housing 1 . In addition, two notches 13 are provided on the receiving portion 12 of the housing 1, and the first welding arm 41 and the second welding arm 51 respectively pass through the corresponding notches 13 from the outside of the housing 1 and are attached to the second part of the insulating base 2. on the surface of both ends. Further, grooves for accommodating the first welding arm 41 and the second welding arm 51 are provided on the surface of the second end of the insulating base 2 to keep the surface of the second end of the insulating base 2 flat.

6B, 6C, 7, 8B and 8C, in a further embodiment of the coaxial connector 100, at least one connecting terminal 4 and the second connecting terminal 5 are respectively provided with at least one connecting terminal 4 and The second connecting terminal 5 is fixed to the mounting portions 44 , 54 on the insulating base 2 . Advantageously, the mounting portion 44 of the first connecting terminal 4 is disposed on the fixed arm 42 , while the mounting portion 54 of the second connecting terminal 5 is disposed on the elastic arm. However, in the case where the grooves are provided on the insulating base 2 , the installation parts can also be respectively provided on the first welding arm 41 and the second welding arm 51 . For example, the mounting portion may be formed as an outwardly protruding barb structure.

Although it has been described above that both the first connection terminal 4 and the second connection terminal 5 have a substantially L-shape, the present invention is not limited thereto. As shown in FIGS. 13 and 14 , in another exemplary embodiment of a coaxial connector 100 ′, the fixing arm 42 ′ of the first connecting terminal 4 ′ is approximately in the direction of the axis of the channel 21 in the channel 21 The vertical direction extends, but does not pass through the axis of the channel 21; the elastic arm 52' of the second connection terminal 5' extends in the channel 21 in a direction substantially perpendicular to the axis of the channel 21 and exceeds the axis of the channel 21, the The elastic arm 52' is configured to be detachably electrically connected to the fixed arm 42'. Other structures of the coaxial connector 100' of this embodiment are the same as those of the coaxial connector 100, and a detailed description thereof is omitted here.

Specifically, as shown in FIG. 13, when the mating connector 200 is not coupled to the coupling portion 11 of the coaxial connector 100' shell 1, the switching end 32 of the central terminal leaves the elastic arm 52', so that the elastic arm 52 ' is electrically connected to the fixed arm 42'; as shown in Figure 14, when the mating connector 200 is combined on the joint part 11, the switching end 32 of the central terminal 3 is electrically connected to the elastic arm 52' and presses the elastic arm 52' The elastic deformation occurs, so that the elastic arm 52' is disconnected from the electrical connection with the fixed arm 42'. In this way, the elastic arm 52' is switched from the state of being electrically connected with the fixed arm 42' to the state of being electrically connected with the central terminal 3.

In a further exemplary embodiment, the switching end 32 of the central terminal 3 includes an insulating portion facing the fixed arm of the first connection terminal, and a conductive portion facing the elastic arm of the second connection terminal. When the mating connector 200 is not coupled to the joint portion of the coaxial connector housing, the switching end of the central terminal is away from the elastic arm, so that the elastic arm is electrically connected to the fixed arm; when the mating connector is coupled to the joint portion, the The switching end of the central terminal is inserted between the fixed arm and the elastic arm, and presses the elastic arm to undergo elastic deformation, so that the elastic arm is separated from the electrical connection with the fixed arm due to the insulating part on the switching end. In this way, the elastic arm is switched from the state of being electrically connected with the fixed arm to the state of being electrically connected with the central terminal.

According to another embodiment of the present invention, a connector assembly is provided, including: a coaxial connector 100, 100' as described in the various embodiments above; and a circuit board 10 as shown in FIG. 3 , the circuit board 10 includes two connection portions 101 electrically connected to the first welding arm and the second welding arm respectively. The coaxial connector of the present invention can realize the switch function, and can be applied to the connector of normal polarity and the connector of reverse polarity.

According to the coaxial connectors of the above-mentioned various embodiments of the present invention, when the coaxial connector is combined with the mating connector, the electrical connection between the central terminal and the second connecting terminal is realized through the movement of the central terminal, and at the same time the The electrical connection between the first connection terminal and the second connection terminal can reduce the number of electrical connections of the conductive components through mechanical contact, thereby reducing contact resistance and improving the transmission performance of electrical signals. In addition, surface contact can be realized between the first connection terminal and the second connection terminal, and between the center terminal and the second connection terminal, which reduces the contact resistance and further improves the transmission performance of electrical signals.

Further, since the fixed arm of the first connection terminal is directly electrically connected with the elastic arm of the second connection terminal, the size of the first connection terminal and the second connection terminal is shortened, and the size of the first connection terminal and the second connection terminal is reduced. The conductive path minimizes the antenna effect when the coaxial connector is not bonded to the mating connector.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Under the circumstances, free combination can be carried out, so as to realize more kinds of electrical connectors and connector assemblies on the basis of solving the technical problems of the utility model.

After describing the preferred embodiments of the present invention in detail, those skilled in the art can clearly understand that various changes and changes can be made without departing from the scope and spirit of the appended claims, and the present invention is not limited by Implementation is limited to the exemplary embodiments set forth in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any element references in the claims should not be construed as limiting the scope of the present invention.

Claims (13)

1. a coaxial connector, comprising:

A housing, comprise one for the joint portion that a matching connector is combined and an accommodation section;

An insulating base, is arranged in described accommodation section, and comprises a first end towards described joint portion, second end relative with described first end and run through the passage of described first end and the second end;

A center terminal, is configured to move in described passage, described center terminal comprise one be arranged in described joint portion for the link that described matching connector is electrically connected and the switch terminal relative with described link;

First splicing ear, comprise first welding arm extending to the second end of described insulating base from the outside of described housing and one be connected with described first welding arm one and extend to the fixed arm described passage; And

Second splicing ear, comprise second welding arm extending to the second end of described insulating base from the outside of described housing and one be connected with described second welding arm one and extend to the elastic arm described passage,

Wherein, when described matching connector is not attached on described joint portion, the switch terminal of described center terminal leaves described elastic arm, and described elastic arm is electrically connected with described fixed arm; When described matching connector is attached on described joint portion, the switch terminal of described center terminal is electrically connected with described elastic arm and oppresses described elastic arm generation strain, makes described elastic arm depart from the electrical connection with described fixed arm,

Described housing comprises first annular flange flange also radially extended between described joint portion and accommodation section further,

Described center terminal comprises the second annular flange flange of an also outward radial extension between described link and switch terminal further, and described first annular flange flange stops that described second annular flange flange moves to described joint portion from described accommodation section,

An elastomeric element is arranged between described second annular flange flange and the first end of described insulating base,

Described coaxial connector comprises a mobile foundation further, and described mobile foundation comprises:

A main part, described main part can move through described first annular flange flange, and the link of described center terminal is through described main part; And

3rd annular flange flange, extends from described main part outward radial, and between described first annular flange flange and the second annular flange flange.

2. coaxial connector as claimed in claim 1, wherein, the fixed arm of described first splicing ear extends along the direction almost parallel with the axis direction of described passage in described passage;

The elastic arm direction that edge and the axis direction of described passage tilt in described passage of described second splicing ear extends.

3. coaxial connector as claimed in claim 2, wherein, described elastic arm is provided with a contact arm extended to described fixed arm in the position of the free end preset distance leaving described elastic arm, when described matching connector is not attached on described joint portion, described contact arm is electrically connected with described fixed arm; When described matching connector is attached on described joint portion, the switch terminal of described center terminal is electrically connected with described elastic arm and oppresses described elastic arm generation strain, makes described contact arm depart from the electrical connection with described fixed arm.

4. coaxial connector as claimed in claim 3, wherein, described contact arm has L shape roughly, and when described matching connector is attached on described joint portion, the switch terminal of described center terminal can be inserted between the described contact arm of L shape and elastic arm.

5. coaxial connector as claimed in claim 3, wherein, described contact arm has the through hole of circle roughly, and when described matching connector is attached on described joint portion, the switch terminal of described center terminal can be inserted in described through hole.

6. coaxial connector as claimed in claim 2, wherein, described elastic arm is provided with the groove corresponding with the switch terminal of described center terminal.

7. coaxial connector as claimed in claim 1, wherein, the fixed arm of described first splicing ear extends along the direction substantially vertical with the axis direction of described passage in described passage;

The elastic arm of described second splicing ear extends along the direction substantially vertical with the axis direction of described passage in described passage, and described elastic arm is configured to can be disconnected to be electrically connected with described fixed arm.

8. the coaxial connector as described in any one in the claims, wherein, described first splicing ear and the second splicing ear are respectively equipped with at least one for described first splicing ear and the second splicing ear being fixed to the installation portion on described insulating base.

9. the coaxial connector as described in any one in claim 1-7, wherein, the accommodation section of described housing is provided with two breach, and described first welding arm and the second welding arm are each passed through corresponding breach.

10. coaxial connector as claimed in claim 9, wherein, the surface of the second end of described insulating base is provided with the groove for holding described first welding arm and the second welding arm.

11. coaxial connectors as claimed in claim 1, wherein, the first end of described insulating base is provided with the support portion for the end supporting described elastomeric element.

12. coaxial connectors as described in any one in claim 1-7, described housing comprises the locator protrusions that at least one is positioned at the outside of described joint portion further, and described locator protrusions is configured to by described matching connector location on the housing.

13. 1 kinds of connector assemblies, comprising:

A coaxial connector according to any one of claim 1-12; And

A circuit board, described circuit board comprises two connecting portions be electrically connected with described first welding arm and the second welding arm respectively.