CN213845565U

CN213845565U - Connector and equipment box

Info

Publication number: CN213845565U
Application number: CN202022826207.8U
Authority: CN
Inventors: 王恒; 李立新; 柳先波; 刘向阳; 许蔚; 全硒硼; 张志中
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-30
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a connector and equipment box. The connector comprises a shell, an insulator, a contact element and a switching conductive element. The switching conductive piece is in upper-lower conductive sliding fit with the contact piece, and the switching conductive piece is used for being conductive with a conductive part of a printed board on the printed board, so that the contact piece can be in conductive connection with the printed boards at different positions up and down through the switching conductive piece. When the position between contact and the printing board changes, the switching is electrically conductive can compensate the positional deviation between contact and the printing board, because the utility model discloses a switching is electrically conductive with contact sliding fit, the contact is difficult to warp, and switching is electrically conductive also difficult to warp, and the dismouting back contact can normally repetitious usage installation with switching is electrically conductive, and is longe-lived, has solved present connector and has adopted when the installation to make the contact warp the contact life-span of the contact that supplementary connector positional deviation caused lower and maintain inconvenient problem.

Description

Connector and equipment box

Technical Field

The utility model relates to a connector and equipment box.

Background

In order to connect the printed board inside the equipment box body with a circuit outside the equipment box body, an external socket is generally installed on the box wall of the equipment box body, and then the external socket is connected with the printed board through a switched printed board connector so as to realize transmission of power or signals.

Because the space in the equipment box is limited, the existing installation sequence is that the printed board connector is connected with the printed board firstly, then the printed board is fixed in the equipment box, and finally the external connector can be inserted into the equipment box to be in splicing fit with the printed board connector.

Chinese patent No. CN211456101U, granted as 2020.09.08 discloses a transfer connector, in which a contact of the transfer connector is fixed to a conductive portion of a printed board by crimping, a screw locking sleeve is disposed inside the contact, and a crimping section and the conductive portion are pressed by the screw locking sleeve and a locking member. When the position of the printed board has larger deviation with the position of the connector, the contact element needs to supplement the distance between the printed board through deformation, and the tolerance capacity is stronger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a connector, which is used for solving the problems of lower service life and inconvenient maintenance of a contact element caused by adopting the deformation of the contact element to supplement the position deviation of the connector when the existing connector is installed; in addition, the utility model also aims at providing an equipment box of using above-mentioned connector.

The utility model discloses a connector adopts following technical scheme:

the connector includes:

a housing;

the insulator is arranged on the shell, and the front end of the insulator is used for extending into the equipment box body;

the contact element is arranged on the insulator, the front end of the contact element is used for extending into the equipment box body, and the rear end of the contact element is used for being inserted into the contact element of the adaptive plug;

and the switching conductive piece is in up-down conductive sliding fit with the contact piece and is used for conducting electricity with a conductive part of the printed board on the printed board, so that the contact piece can be in conductive connection with the printed boards at different positions up and down through the switching conductive piece.

Has the advantages that: the utility model discloses a connector can be through setting up the electrically conductive piece of gliding switching from top to bottom with the contact, during the position change between contact and the printing board, the electrically conductive piece of switching can compensate the positional deviation between contact and the printing board, realizes the normal electrically conductive connection of the two, because the utility model discloses an electrically conductive piece of switching and contact sliding fit, the contact is difficult to warp, and the electrically conductive piece of switching also is difficult to warp simultaneously, and the electrically conductive piece of dismouting back contact and the electrically conductive piece of switching can normally repetitious usage installation, and the life-span is higher, has solved present connector and has adopted the contact life-span that makes the contact warp supplementary connector positional deviation cause lower and the inconvenient problem of maintenance when the installation.

Furthermore, the switching conductive piece is provided with a threaded hole matched with the threaded fastener, the threaded hole extends up and down, and the switching conductive piece is matched with the insulator or the contact piece in a rotation stopping manner, so that the switching conductive piece and the conductive part of the printed board are fastened by the threaded fastener to realize conductive connection. The switching conductive piece is fastened with the conductive part of the printed board through the threaded fastener, so that the printed board and the connector are convenient to install.

Furthermore, the contact element comprises a plug bush which is in up-down conductive sliding fit with the switching conductive piece, the switching conductive piece is provided with a threaded sleeve which is inserted into the plug bush, and the inner hole of the threaded sleeve forms the threaded hole. The plug bush is in plug-in fit with the threaded sleeve, so that the structure is more compact.

Furthermore, in order to improve the operation stability of the switching conductive piece, the switching conductive piece further comprises a contact cap connected with the upper end of the threaded sleeve, the upper end face of the contact cap is used for being pressed against the conductive part of the printed board, and the contact cap and the threaded sleeve are enclosed to form an insertion slot for inserting the insertion sleeve. The plug bush is inserted in the slot, and the swing amplitude of the switching conductive piece can be reduced through the interaction of the inner side wall and the outer side wall of the slot and the plug bush.

Furthermore, a convex rib in sliding fit with the inner wall of the contact cap is arranged on the outer wall surface of the plug bush, and the inner wall surface of the plug bush is in conductive contact fit with the outer wall surface of the threaded sleeve. The swing amplitude of the switching conductive piece is reduced, and meanwhile, the switching conductive piece is in good conductive contact with the plug bush.

Furthermore, in order to improve the conductivity and facilitate installation, at least two split grooves extending from top to bottom are arranged on the plug bush. The split groove can be arranged to ensure that the radial dimension of the plug bush changes according to the actual situation, so that the plug bush and the switching conductive piece have good electric contact.

Furthermore, the contact cap is arranged on the insulator in a vertically guiding and sliding manner, and a rotation stopping boss matched with the insulator in a rotation stopping manner is arranged on the contact cap. The contact cap is arranged on the insulator, so that the stability is better, the structure of the rotation stopping boss is simple, and the installation and the processing are convenient.

Furthermore, the rotation stopping lug boss is matched with the insulator in a stopping way up and down so as to limit the separation of the contact cap and the insulator. The rotation stopping boss is matched with the insulator in a vertically stopping manner, so that the rotation stopping boss is prevented from being separated from the insulator, and the structure of the contact cap is simpler.

Furthermore, the insulator comprises a left insulating block and a right insulating block, and the left insulating block and the right insulating block are oppositely combined left and right to clamp and fix the contact. The insulator facilitates installation of the contact when separated.

Furthermore, the contact cap is arranged on the insulator in a vertically guiding and sliding manner, and the contact cap and the insulator are in up-and-down stop fit to limit the separation of the contact cap and the insulator. The switching conductive piece is prevented from being separated from the insulator, and the installation is convenient.

The utility model discloses technical scheme of equipment box:

the equipment box comprises a box body and a connector fixed on the box body, wherein a printed board connected with the connector is arranged in the box body;

the connector includes:

a housing;

the switching conductive piece is in conductive sliding fit with the upper and lower conductive parts of the contact piece and is used for conducting electricity with the conductive parts of the printed boards on the printed boards, so that the contact piece can be in conductive connection with the printed boards at different positions up and down through the switching conductive piece;

the switching conductive piece is provided with a threaded hole matched with the threaded fastener, the threaded hole extends up and down, and the switching conductive piece is matched with the insulator or the contact piece in a rotation stopping manner, so that the switching conductive piece and the conductive part of the printed board are fastened by the threaded fastener to realize conductive connection.

Drawings

Fig. 1 is a schematic view of a state of a connector according to embodiment 1 of the present invention after the connector is fixed to a printed board;

fig. 2 is an exploded view of the connector of embodiment 1 of the connector of the present invention;

fig. 3 is a partial cross-sectional view of a contact and a contact cap of a connector according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a contact member in embodiment 1 of the connector of the present invention;

fig. 5 is a partial cross-sectional view of the connector of embodiment 1 of the present invention after installation;

fig. 6 is a partial cross-sectional view of another state of the connector of embodiment 1 of the present invention after installation;

fig. 7 is a partial structural schematic view of a contact cap, a contact member and an insulator according to embodiment 1 of the present invention;

fig. 8 is a partial structural view of a contact cap and an insulator according to embodiment 1 of the present invention;

fig. 9 is a partial structural schematic view of a contact cap and a contact member according to embodiment 1 of the present invention;

fig. 10 is a partial sectional view of the connector according to embodiment 1 of the present invention after the connector is fixed to a printed board;

fig. 11 is a state diagram of the connector before being assembled with the printed board and the adaptor in embodiment 2 of the present invention;

fig. 12 is a state diagram of the assembled connector, printed board and adaptor in the embodiment 2 of the present invention;

in fig. 1 to 10: 1-a shell; 2-an insulator; 21-a rotation stopping matching groove; 211-upper side slot wall; 22-left side insulator block; 23-right side insulating block; 3-a contact member; 31-a plug bush; 32-pin insertion; 33-connecting conductors; 34-splitting a groove; 35-convex ribs; 4-equipment box body; 5-a printed board; 51-a plate body; 52-printed board conductive parts; 521-printed board through holes; 6-switching conductive parts; 61-a contact cap; 611-upper end face; 612-rotation stopping boss; 613-cap body; 62-thread insert; 621-a threaded hole; 63-slot; 7-fastening bolts;

in fig. 11 and 12: 5-a printed board; 51-a plate body; 52-printed board conductive parts; 521-board body conductive member; 522-an adaptor; 61-contact cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The terms "upper", "lower", "front", "rear", "left", "right", and the like in the present invention indicate orientations or positional relationships that are assumed to be merely for convenience of describing relative positions of parts, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses embodiment 1 of connector:

as shown in fig. 1 to 10, the connector of the present invention is a switching connector, the front end of the connector is used for connecting with the printed board 5, and the rear end of the connector is used for plugging with an adapter plug.

The connector comprises a shell 1, an insulator 2 and a contact element 3, wherein the shell 1 is a metal conductive shell and is fixed on the wall of an equipment box body 4 through bolts, a connector mounting hole is formed in the equipment box body 4, the contact element 3 and the insulator 2 of the connector penetrate through the connector mounting hole to be inserted into the equipment box body 4 and are connected with a printed board 5 in the equipment box body 4, and the printed board 5 comprises a board body 51 and a printed board conductive part 52. The device housing 4 is in electrically conductive contact with the housing 1 of the connector to achieve shielding of the contacts 3 within the housing 1.

The insulator 2 is fixed with the shell 1, the front end of the insulator extends into the equipment box 4, and the contact 3 is fixed in the insulator 2. The front end of the contact 3 extends into the equipment box body 4 along with the insulator 2, and the rear end is used for being inserted with the contact of the adaptive plug. The contact 3 extends back and forth integrally and comprises three parts, namely a plug bush 31 at the front end, a pin 32 at the rear end and a connecting conductor 33 for connecting the plug bush 31 and the pin 32, wherein the three parts are arranged back and forth, and in the embodiment, the connecting conductor 33 is riveted with the plug bush 31 and is fixed with the pin 32 through a rivet. The contact 3 with the split structure is convenient to process, and the processing cost is reduced. In other embodiments, the connecting conductor may be connected to the socket or the pin by welding, integral molding, or the like.

The connector comprises a switching conductive piece 6 which is in up-and-down guiding sliding fit with the plug bush 31, the switching conductive piece 6 comprises a contact cap 61 and a screw bush 62, the lower end of the screw bush 62 is inserted into the plug bush 31, the contact cap 61 is connected to the upper end of the screw bush 62, and the contact cap 61 and the screw bush 62 are integrally arranged in the embodiment. In other embodiments, the contact cap may be separate from the threaded sleeve, for example, by welding.

After fastening bolt 7 screws up printed board conductive part 52 and switching conductive part 6, upper end surface 611 of contact cap 61 is used for pressing conductive contact with printed board conductive part 52, switching conductive part 6 is in upper and lower conductive sliding fit with plug bush 31 of contact element 3, contact element 3 is in conductive connection with printed board 5 through switching conductive part 6, meanwhile, switching conductive part 6 can slide up and down, namely switching conductive part 6 can move in a direction perpendicular to printed board 5, contact element 3 can adapt to printed boards 5 at different positions up and down and is in conductive connection with printed boards 5 at different positions up and down.

The screw sleeve 62 extends up and down, the inner hole of the screw sleeve 62 is a threaded hole 621 matched with the fastening bolt 7, a printed board through hole 521 corresponding to the threaded hole 621 is arranged on the printed board conductive part 52, the fastening bolt 7 penetrates through the printed board through hole 521 and then is in threaded connection with the screw sleeve 62, the printed board conductive part 52 and the switching conductive part 6 are fastened, and the upper end surface 611 of the contact cap 61 of the switching conductive part 6 is in pressing conductive contact with the printed board conductive part 52. The fastening bolt 7 in the present embodiment constitutes a threaded fastener.

The contact cap 61 is slidably disposed on the insulator 2 in a vertically guided manner, and as shown in fig. 8 and 9, the contact cap 61 is provided with a rotation stop boss 612 which is engaged with the insulator 2 in a rotation stop manner, and the insulator 2 is provided with a rotation stop engagement groove 21 which is engaged with the rotation stop boss 612 in a vertically sliding manner. The upper groove wall 211 of the rotation stopping matching groove 21 is in up-and-down stop matching with the rotation stopping boss 612, so that the rotation stopping boss 612 and the insulator 2 are stopped up and down to limit the separation of the contact cap 61 and the insulator 2. In this embodiment, two rotation stopping bosses 612 are symmetrically arranged. The contact cap 61 includes a cap body 613 extending in a cylindrical shape in the vertical direction, and a rotation stop boss 612 is provided at a lower end of the cap body 613.

In order to improve the conductive stability of the switching conductive piece 6 and the contact piece 3, the plug bush 31 is provided with four vertically extending split grooves 34, the four split grooves 34 are uniformly arranged in the circumferential direction of the plug bush 31, the split grooves 34 extend to the lower end of the plug bush 31 from top to bottom, the upper end of the split grooves is communicated with the upper end opening of the plug bush 31, and thus the upper end of the plug bush 31 can be retracted inwards. In this embodiment, the inner wall surface of the plug 31 is in conductive contact with the outer wall surface of the screw nut 62, and the portions of the upper end of the plug 31 are slightly inwardly retracted toward the center, whereby good conductive contact between the plug 31 and the screw nut 62 can be ensured.

In this embodiment, the insert groove 63 into which the insert 31 is inserted is formed in the insert 62 and the contact cap 61, the insert groove 63 is an annular groove, the outer peripheral surface of the insert 62 is an inner groove wall surface of the insert groove 63, and the inner peripheral surface of the cap body 613 is an outer groove wall surface of the insert groove 63.

The upper part of the plug bush 31 is provided with a convex rib 35 positioned on the periphery of the plug bush 31, the convex rib 35 extends along the circumferential direction of the plug bush 31, and the convex rib 35 is in conductive sliding fit with the inner wall of the contact cap 61 so as to prevent the screw sleeve 62 and the plug bush 31 from swinging relatively and improve the contact reliability of the switching conductive piece 6 and the contact piece 3.

The utility model discloses a connector adopts the form of swivel nut 62 and plug bush 31 to inserting, and fastening bolt can be dodged to the plug bush hole, has both increased the area of removing of the electrically conductive 6 of contact 3 and switching, and the structure is compacter simultaneously.

For the convenience of assembly, in the present embodiment, the insulator 2 is a split structure with left and right involutions, the insulator 2 includes a left insulating block 22 and a right insulating block 23, after the left insulating block 22 and the right insulating block 23 are involuted and fixed by bolts, the contact 3 is clamped and fixed, and the adapting conductive piece 6 is also clamped between the left insulating block 22 and the right insulating block 23.

When the equipment box is assembled, the connector is arranged in the connector mounting hole of the equipment box, the printed board 5 is fixed in the equipment box, the printed board conductive part 52 on the printed board 5 is fastened with the switching conductive part 6 through the bolt, and when the printed board 5 has position deviation in the up-down direction, the printed board 5 can slide up and down through the plug bush 31 and the switching conductive part 6, so that the normal installation of the connector and the printed board 5 is ensured. As shown in fig. 5 and 6, when the perpendicular distance between the printed board 5 and the center line of the connector is between L1 and L2, the printed board can be normally mounted and used. In the process of fastening the fastening bolt 7 with the screw sleeve 62, if the perpendicular distance between the printed board 5 and the center line of the connector is greater than L1, because the screw sleeve 62 cannot rotate, under the action of the fastening bolt 7, the screw sleeve 62 will move upwards until the upper end surface 611 of the contact cap 61 abuts against the printed board conductive part 52 on the printed board 5, at this time, the fastening bolt 7 is continuously screwed until the contact cap 61 is pressed against the printed board conductive part 52 after the fastening bolt 7 fastens the printed board conductive part 52 with the adapting conductive part 6, and good electrical contact is realized. If printed board 5 is at a vertical distance equal to L1 from the center line of the connector, the end face of the upper end of the contact cap is pressed directly against printed board conductive part 52 on printed board 5.

In other embodiments, a plurality of ribs may be disposed up and down, or a plurality of convex points may be disposed instead of the ribs.

In other embodiments, in addition to the matching form of the screw sleeve and the sliding sleeve in the above embodiments, a conductive post may be disposed on the adapting conductive piece, a jack inserted into the conductive post is disposed on the contact piece, and a threaded hole parallel to the conductive post is further disposed on the adapting conductive piece. In other embodiments, the shell is further provided with a conductive column on the contact element, and the switching conductive piece is provided with a jack electrically connected with the conductive column.

In other embodiments, a vertically extending convex-concave matching structure may be disposed between the threaded sleeve and the sliding sleeve to achieve rotation stopping, and at this time, the switching conductive member is in rotation stopping fit with the contact member. In other embodiments, the form of the rotation stopping of the switching conductive element and the insulator can also have other modes, such as: the outer peripheral surface of the cylinder body of the contact cap is non-circular, a rotation stopping plane is arranged on the outer peripheral surface, the rotation stopping plane is matched with the insulator in a rotation stopping mode, a guide column can be arranged at the lower end of the contact cap, and an insertion hole for the guide column to insert is formed in the insulator.

In other embodiments, the printed board conductive member may not be in direct contact with the switching conductive member, and the printed board conductive member and the switching conductive member are electrically conducted through the fastening bolt.

In other embodiments, the length of the threaded sleeve is long enough, and the adapting conductive contact element may not be in up-and-down stop fit with the insulator.

In other embodiments, the number of the splitting slots may be set according to the requirement, for example, two, three, etc. may be set. In other embodiments, only the sliding sleeve and the contact cap can be in conductive contact, and the upper end of the sliding sleeve can be expanded. Of course, in other embodiments, the sliding sleeve may only be in conductive contact with the threaded sleeve.

In other embodiments, the contact cap may further include a stop structure and an insulator stop, such as a groove on the contact cap and a stop on the insulator that mates with the groove.

In other embodiments, the printed board can be fixed with the switching conductive piece through riveting, in other embodiments, the printed board can also be fixed through clamping, and reliable connection can be guaranteed through spot welding after clamping.

The utility model discloses embodiment 1 of equipment box, including the box with fix the connector on the box, be provided with the printing board of being connected with the connector in the box, the structure of connector and any one above-mentioned embodiment in the structure of connector the same, wherein the structure of printing board and box also with above-mentioned connector embodiment in the structure the same.

The utility model discloses specific embodiment 2 of equipment box, the structure of equipment box in this embodiment only lies in with the difference of above-mentioned embodiment, as shown in fig. 11 and 12, in this embodiment, printed board conductive part 52 is including fixing plate body conductive part 521 on plate body 51 of printed board 5 and adaptor 522 with plate body conductive part 521 conductive connection. The interposer 522 is in compressive conductive contact with the contact cap 61.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A connector, comprising:

a housing (1);

the insulator (2) is arranged on the shell (1), and the front end of the insulator is used for extending into the equipment box body (4);

the contact element (3) is arranged on the insulator (2), the front end of the contact element (3) is used for extending into the equipment box body (4), and the rear end of the contact element is used for being plugged with the contact element of the adaptive plug;

the switching conductive piece (6) is in up-down conductive sliding fit with the contact piece (3), and the switching conductive piece (6) is used for being conductive with a printed board conductive part (52) on the printed board (5) so that the contact piece (3) can be in conductive connection with the printed boards (5) at different positions up and down through the switching conductive piece (6).

2. The connector of claim 1, wherein the adapting conductive piece (6) is provided with a threaded hole (621) for matching with a threaded fastener, the threaded hole (621) extends up and down, and the adapting conductive piece (6) is matched with the insulator (2) or the contact piece (3) in a rotation stopping way, so that the threaded fastener fastens the adapting conductive piece (6) and the printed board conductive part (52) to realize conductive connection.

3. Connector according to claim 2, characterized in that said contact element (3) comprises a socket (31) in up-and-down conductive sliding fit with a transition conductor (6), said transition conductor (6) having a threaded sleeve (62) inserted into said socket (31), the inner bore of said threaded sleeve (62) forming said threaded hole (621).

4. A connector according to claim 3, wherein the lower end of the screw sleeve (62) is inserted into the plug sleeve (31), the transition conductive member (6) further comprises a contact cap (61) connected with the upper end of the screw sleeve (62), the upper end surface of the contact cap (61) is used for pressing against the conductive portion (52) of the printed board, and the contact cap (61) and the screw sleeve (62) enclose a slot (63) for inserting the plug sleeve (31).

5. A connector according to claim 4, characterized in that the outer wall of the insert (31) is provided with ribs (35) which are in sliding engagement with the inner wall of the contact cap (61), and the inner wall of the insert (31) is in conductive contact engagement with the outer wall of the screw sleeve (62).

6. Connector according to claim 3 or 4 or 5, characterized in that the plug sleeve (31) is provided with at least two split grooves (34) extending from top to bottom.

7. The connector according to claim 4 or 5, wherein the contact cap (61) is slidably disposed on the insulator (2) in a vertically guiding manner, and the contact cap (61) is provided with a rotation stopping boss (612) which is engaged with the insulator (2) in a rotation stopping manner.

8. The connector of claim 7, wherein the rotation stop bosses (612) are in up-and-down stop engagement with the insulator (2) to limit separation of the contact cap (61) from the insulator (2).

9. The connector according to claim 4 or 5, wherein the contact cap (61) is slidably disposed on the insulator (2) in an up-and-down guiding manner, and the contact cap (61) is in up-and-down stop fit with the insulator (2) to limit the separation of the contact cap (61) from the insulator (2).

10. The connector according to any one of claims 1 to 5, wherein the insulator (2) comprises a left insulating block (22) and a right insulating block (23), and the left insulating block (22) and the right insulating block (23) are engaged left and right to hold the contact (3) in place.

11. Equipment box, comprising a box body and a connector fixed on the box body, wherein a printed board (5) connected with the connector is arranged in the box body, characterized in that the connector is the connector of any one of claims 1-10.