CN210429633U

CN210429633U - Rotary switch with double-contact movable contact piece structure

Info

Publication number: CN210429633U
Application number: CN201921766031.2U
Authority: CN
Inventors: 邱基振; 朱洲阳
Original assignee: Foshan Jiulong Machine Co ltd
Current assignee: Foshan Jiulong Machine Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-04-28
Anticipated expiration: 2029-10-21

Abstract

The utility model relates to a rotary switch of two contact movable contact spring structures, including main part, terminal and movable contact spring, the terminal is with two liang of a set of forms along inserting side by side along the straight line and locate among the main part, both sides be equipped with the movable contact spring who counts the same quantity with the terminal group among the terminal, the movable contact spring both sides respectively are equipped with 1 moving contact, the terminal is equipped with the static contact that corresponds with the moving contact, be close to in the main part of movable contact spring wherein be equipped with the little spring between one side and the main part of 1 moving contact, both sides the terminal passes through main part fixed connection, be equipped with the dustcoat on the both sides terminal of main part, the main part both ends are equipped with the camshaft that passes the terminal central authorities of both sides, be equipped with the cam of being connected with the movable contact spring contact on the camshaft, the main shaft is: the product terminal can be combined at will, the double-contact structural design improves the service life of the product, and the electric conductivity is superior.

Description

Rotary switch with double-contact movable contact piece structure

Technical Field

The utility model belongs to the technical field of electrical components, concretely relates to rotary switch of double contact movable contact spring structure.

Background

The rotary switch is generally practical on household appliances, such as household appliances like an electric oven, a cooker and a deep fryer, the household appliances are high in power, high in temperature and bad in service environment, most rotary switches produced by most manufacturers use a hook structure principle to control the on-off of a circuit, the hook position is easy to oxidize, the contact resistance is large (the contact resistance is easy to abrade and oxidize after a terminal is plated with silver and the time is long), the switch is easy to generate heat after being electrified and loaded, the temperature rise of the terminal is serious, a fused plastic part is caused, the switch is invalid, and the service life is short. To this end, we propose a rotary switch of a double-contact moving contact structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem among the background art, provide a rotary switch of double contact movable contact spring structure, satisfied the correlation technique demand, concrete technical scheme is as follows:

a rotary switch with a double-contact movable contact piece structure comprises a main body, terminals and movable contact pieces, wherein the terminals are inserted into the main body side by side along a straight line in a group of two terminals, the movable contact pieces with the same number as the terminal groups are arranged in the terminals on two sides, 1 movable contact is respectively arranged on two sides of each movable contact piece, the terminals are provided with static contacts corresponding to the movable contacts, a small spring is arranged between one side, close to 1 movable contact, of the main body of each movable contact piece and the main body, the terminals on two sides are fixedly connected through the main body, outer covers are arranged on the terminals on two sides of the main body, cam shafts penetrating through the centers of the terminals on two sides are arranged at two ends of the main body, cams in contact connection with the movable contact pieces are arranged on the cam shafts, and.

As a further technical scheme of the utility model, the group number of terminal is 11 groups, the kind of terminal includes single-pin terminal and bipod terminal, and the terminal kind that is located both ends is the bipod terminal, and the terminal of all the other intermediate positions is the single-pin terminal, be equipped with spacing department between terminal and the static contact, it is adjacent through two foot connection pieces or four foot connection piece bridging between the terminal.

As a further technical scheme of the utility model, the part of movable contact spring and cam contact is equipped with first bending, the movable contact spring is equipped with the second with the part of little spring contact and bends, the tip that the movable contact spring is close to the second one side moving contact of bending is equipped with the third and bends, the tip bending of third bending is located among the spacing.

As a further technical scheme of the utility model, cam quantity on the camshaft with the movable contact spring is unanimous, the cam is equipped with different profiles according to the order with the movable contact spring contact and long, the one end of camshaft is equipped with the gear shaft section, the position that the main part corresponds to the gear shaft section is equipped with big spring, the top of big spring is equipped with the pole, the pole both sides are positioned in the main part through the cubic nut to contradict with gear shaft section elasticity.

As a further technical scheme of the utility model, the main shaft is for having a cylindrical shaft of plane tangent plane, and whole most part wears to locate among the camshaft to extend in the one end that is close to the gear shaft section.

As a further technical scheme of the utility model, the dustcoat includes first dustcoat and second dustcoat, first dustcoat or second dustcoat pass through the mode that the buckle is connected and link to each other with the main part.

As a further technical proposal of the utility model, the movable contact spring is made of H62Y2 brass with the thickness of 0.8 mm.

The beneficial effects of the utility model are that:

1. the number of the product terminal groups is 11, the connection among the terminals is 2-11 connecting sheets, and the terminals can be combined at will, so that the requirements of customers on 1-11 terminal group combination design are met;

2. the movable contact piece contact is designed in a double-contact structure, so that the heating problem caused by terminal oxidation of the hook structure end is solved, the heating is reduced, the service life of the product is greatly prolonged, and the effective use times can reach more than 5 ten thousand;

3. the movable contact piece is made of brass H62Y2 with the thickness of 0.8mm, and has good wear resistance and excellent electric conductivity.

Drawings

Fig. 1 is an explosion structure diagram of the present invention.

Fig. 2 is a schematic view showing the engagement of the terminal 5 with the movable contact 14.

Fig. 3 is a schematic diagram of the action of the small spring 15.

Fig. 4 is a schematic overall view of the forward direction of the present invention.

Fig. 5 is a back-to-back overall view of the present invention.

Fig. 6 is a schematic diagram of the fitting of parts of the present invention.

Wherein: the device comprises a first outer cover 1, a second outer cover 2, a cam shaft 3, a main shaft 4, a terminal 5, a static contact 6, a round bar 7, a large spring 8, a square nut 9, a two-pin connecting piece 11, a movable contact 12, a movable contact 14, a small spring 15, a main body 16, a four-pin connecting piece 17, a cam 18, a gear shaft section 19, a first bend 20, a second bend 21, a third bend 22 and a limiting part 23.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings and related embodiments, wherein the following embodiments are only preferred embodiments for better illustrating the present invention, and the embodiments of the present invention are not limited to the following embodiments, and the related essential components of the present invention related to the technical field should be considered as known in the art and can be known and mastered by those skilled in the technical field.

In the description of the present invention, it is to be understood that the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and the like are used in the orientation or positional relationship indicated in the drawings, merely for the purpose of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

A rotary switch of a double-contact movable contact structure shown in the attached drawings comprises a main body 16, a terminal 5 and a movable contact 14, the terminals 5 are inserted in the main body 16 in a group by two along a straight line, the terminals 5 on both sides are provided with the same number of movable contact pieces 14 as the number of the groups of the terminals 5, two sides of the movable contact piece 14 are respectively provided with 1 movable contact 12, the terminal 5 is provided with a static contact 6 corresponding to the movable contact 12, a small spring 15 is arranged between one side of the main body of the movable contact piece 14 close to 1 of the movable contacts 12 and the main body 16, the terminals 5 at two sides are fixedly connected through the main body 16, the terminals 5 on two sides of the main body 16 are provided with outer covers, the two ends of the main body 16 are provided with cam shafts 3 which penetrate through the centers of the terminals 5 on two sides, the camshaft 3 is provided with a cam 18 in contact connection with the movable contact piece 14, and the center of the camshaft 3 is provided with a main shaft 4 in a penetrating way.

With reference to fig. 1 to 3, the utility model discloses an implement the principle to lie in, customize as required the profile of cam 18 on camshaft 3, make cam 18 when camshaft 3 rotates along with main shaft 4, can follow predetermined order and live time and trigger movable contact 14 in proper order, make movable contact 14 when the trigger state, under little spring 15 and cam 18's combined action, the other end does not have limited movable contact 12 can break off with the static contact 6 of terminal 5, the reunion is to the bridging between different terminals 5, thereby realize the different terminal 5's of control signal of telecommunication output as required, realize the free collocation of customization.

With reference to fig. 1 and 2, it is further noted that the number of the terminal groups is 11, the terminal 5 includes a single-pin terminal and a two-pin terminal, the terminal 5 located at both ends is a two-pin terminal, the terminal 5 located at the other intermediate positions is a single-pin terminal, a position limiting portion 23 is arranged between the terminal 5 and the static contact 6, the position limiting portion is preferably groove-shaped and adjacent to the terminal 5 and is bridged by a two-pin connecting piece 11 or a four-pin connecting piece 17, so that the terminal 5 can be bridged according to different two-pin connecting piece 11 or four-pin connecting piece 17, different circuit combinations are realized, and the use flexibility of the utility model is improved.

Referring to fig. 2, 3 and 4, further, a first bend 20 is provided at a portion where the movable contact 14 contacts the cam 18, a second bend 21 is provided at a portion where the movable contact 14 contacts the small spring 15, a third bend 22 is provided at an end of the movable contact 13 near the second bend 21, an end of the third bend 22 is bent and provided in a limit 23, the first bend 20 can control on/off of the movable contact 14 by cooperating with the cam 18, the second bend 21 can cooperate with the small spring 15 to limit and reset the movable contact 14, the third bend 22 cooperates with the limit 23 to realize limiting and become a fulcrum of the small lever mechanism, so that the movable contact 14 cannot be released from the position, and reliability and flexibility of the structure are ensured, wherein when the limit 23 is in a groove shape, the third bend 22 can be directly blocked, if the position-limiting part 23 is in a hole shape, in order to reduce the difficulty of position-locking, the end of the third bend 22 may be a pointed end.

As shown in fig. 1 and 6, further, the number of the cams 18 on the camshaft 3 is the same as that of the movable contact pieces 14, the cams 18 are provided with different profiles according to the sequence and duration of contact with the movable contact pieces 14, one end of the camshaft 3 is provided with a gear shaft section 19, the main body 16 is provided with a large spring 8 corresponding to the gear shaft section 19, the top end of the large spring 8 is provided with a round bar 7, two sides of the round bar 7 are positioned in the main body 16 through square nuts 9 and elastically abut against the gear shaft section 19, the profile of the cam 18 is also the arc length of the effective stroke of the cam 18, the combination can be continuous, intermittent or even instantaneous, by controlling the profile of the cam 18, there can be tens of thousands of different combinations, so the utility model has extremely high flexibility and high accuracy, and the shape combination of the cam 18 is very free as can be seen in conjunction with the drawings, the shape and the combination of the cam 18 of the camshaft 3 are customized according to the needs of users, and the round bar 7 is matched with the gear shaft section 19 through the large spring 8, so that the positioning and the stroke control of the camshaft 3 are realized, and the reliability of the structure is improved.

As shown in fig. 1, 5 and 6, further, the main shaft 4 is a cylindrical shaft with a plane section, most of the whole is inserted into the camshaft 3 and extends out from one end of the camshaft section 19, the main shaft 4 is used for connecting external power so as to drive the camshaft 3 to rotate, and the plane section is used for limiting.

As shown in fig. 1, further, the housing includes a first housing 1 and a second housing 2, the first housing 1 or the second housing 2 is connected to the main body 16 by means of a snap connection, the first housing 1 and the second housing 2 may be different colors so as to distinguish different terminals 5, and the housings can be used for insertion connection of terminal pins.

Further, the movable contact piece 14 is made of H62Y2 brass with the thickness of 0.8mm, so that the durability is improved, and the electric conductivity is good.

The beneficial effects of the utility model are that:

1. the number of the product terminal groups is 11 groups of terminals 5, the connection among the terminals 5 is 2-11 connecting sheets, and the terminals can be combined at will, so that the requirements of customers on 1-11 groups of terminal combination design are met;

2. the contact of the movable contact spring 14 is designed in a double-contact structure, so that the heating problem caused by terminal oxidation of the hook structure end is solved, the heating is reduced, the service life of the product is greatly prolonged, and the effective use times can reach more than 5 ten thousand times;

3. the movable contact piece 14 is made of brass H62Y2 with the thickness of 0.8mm, and has good wear resistance and excellent electric conductivity.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A rotary switch with a double-contact movable contact piece structure comprises a main body, terminals and movable contact pieces and is characterized in that the terminals are inserted into the main body side by side along a straight line in a group of two terminals, the movable contact pieces with the same number as the terminal groups are arranged in the terminals on two sides, 1 movable contact is arranged on each of two sides of each movable contact piece, the terminals are provided with static contacts corresponding to the movable contacts, small springs are arranged between one side, close to 1 of the movable contacts, of the main body of each movable contact piece and the main body, the terminals on two sides are fixedly connected through the main body, outer covers are arranged on the terminals on two sides of the main body, cam shafts penetrating through the centers of the terminals on two sides are arranged at two ends of the main body, cams in contact connection with the movable contact pieces are arranged on the cam shafts.

2. The rotary switch of a double-contact movable contact spring structure as claimed in claim 1, wherein the number of the groups of the terminals is 11, the types of the terminals include a single-pin terminal and a double-pin terminal, the types of the terminals at two ends are double-pin terminals, the terminals at the other middle positions are single-pin terminals, a limiting position is arranged between each terminal and the corresponding fixed contact, and the adjacent terminals are bridged by a two-pin connecting piece or a four-pin connecting piece.

3. The rotary switch of a double-contact moving contact spring structure as claimed in claim 1, wherein the portion of the moving contact spring contacting the cam is provided with a first bend, the portion of the moving contact spring contacting the small spring is provided with a second bend, the end portion of the moving contact spring near the second bend side is provided with a third bend, and the end portion of the third bend is bent and arranged in the limit position.

4. The rotary switch of a double-contact moving contact piece structure as claimed in claim 1, wherein the number of the cams on the cam shaft is consistent with the moving contact piece, the cams are provided with different profiles according to the contact sequence and duration with the moving contact piece, one end of the cam shaft is provided with a gear shaft section, the main body is provided with a large spring at the position corresponding to the gear shaft section, the top end of the large spring is provided with a round bar, and two sides of the round bar are positioned in the main body through square nuts and elastically abut against the gear shaft section.

5. A rotary switch of a dual contact moving contact structure as claimed in claim 1, wherein said main shaft is a cylindrical shaft having a planar section, and a majority of the whole is inserted into the cam shaft and extends from an end adjacent to the gear shaft section.

6. A rotary switch of a dual contact moving contact structure as claimed in claim 1, wherein the housing comprises a first housing and a second housing, and the first housing or the second housing is connected to the main body by means of a snap-fit connection.

7. A rotary switch of a dual contact moving contact structure as claimed in claim 1, wherein said moving contact is made of H62Y2 brass with a thickness of 0.8 mm.