CN217822637U

CN217822637U - Overload protection switch

Info

Publication number: CN217822637U
Application number: CN202222014286.1U
Authority: CN
Inventors: 王建平
Original assignee: Cixi Minghe Xinghua Electric Appliance Co ltd
Current assignee: Cixi Minghe Xinghua Electric Appliance Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-15
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses an overload protection switch, comprising a main body, be provided with zero terminal, quiet terminal in the main part and move the terminal, just the regulation is installed at the main part top move the shift knob that the terminal was used, insulating protection apron is installed to the main part side, install in the main part with the LED subassembly that quiet terminal is connected, it is provided with the bimetallic strip on the terminal to move, the bimetallic strip with be provided with adjustment mechanism between the zero terminal. The utility model discloses its reasonable in design is changed into the adjustable electric current by the current of traditional fixed knot structure can not adjust to can better test whole quick-witted temperature rise, and then can improve the qualification rate that the product dispatched from the factory, be favorable to avoiding unqualified product to flow in market, cause loss and producer for the consumer and cause negative effects.

Description

Overload protection switch

Technical Field

The utility model relates to the technical field of switches, especially, relate to an overload protection switch.

Background

The overload protection switch is mainly an overload protection device which is additionally arranged for preventing the main power supply circuit from being damaged due to overheat of a protector caused by overload. The overload protection switch is subject to the standard IEC60934 of "circuit breaker for equipment", in which the temperature rise of the components of the circuit breaker for equipment, measured under defined conditions, should not exceed a defined temperature rise value. For example, chinese utility model patent that the bulletin number is CN216957937U authorizes, an overload switch is disclosed, including the switch seat, the switch of being connected with the switch seat swing, the switch seat is including the inner chamber, wear to establish on the switch seat and be fixed with two electrically conductive pieces, the one end of two electrically conductive pieces is worn to establish in the inner chamber, the other end of two electrically conductive pieces is worn to establish in the outside of switch seat and is formed with binding post, still be provided with the bimetallic strip in the inner chamber of switch seat, the one end of this bimetallic strip is connected with the one end of one of them electrically conductive piece, the other end of bimetallic strip is provided with the moving contact, the one end of another electrically conductive piece then is provided with the static contact of break-make with the moving contact cooperation, its one end integrated into one piece corresponding with the moving contact has the support column, swing joint has the drive strap between the one end of support column and bimetallic strip, and be based on the drive strap constitutes the transmission connection between switch and the bimetallic strip one end. The switch can drive moving contact and the static contact of bimetallic strip one end electrically conductively or keep away from the disconnection respectively when pressing towards equidirectional swing along with pressing, wherein utilize bimetallic strip deformation location and the deformation characteristic that resets when transshipping, can make the switch keep at the on-state when pressing, and can break off by oneself when transshipping, however the electric current of moving contact and static contact switch-on in the current overload protection switch all is that production technology made, the bimetallic strip later stage intervenes not, so later stage assembly and debugging has the limitation, it hardly reaches to carry out the temperature rise test requirement before dispatching from the factory, and then it reaches the standard of dispatching from the factory to be difficult to detect out, lead to out the product of nonconformity to flow in market easily, thereby cause the loss and bring negative effects for the manufacture factory for the consumer, consequently need to improve current overload switch urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an overload protection switch, its reasonable in design can not adjust by the electric current of traditional fixed knot structure and change into the adjustable electric current to can better test whole quick-witted temperature rise, and then can improve the qualification rate that the product dispatched from the factory, be favorable to avoiding unqualified product to flow in market, cause loss and producer to cause negative effects for the consumer.

(II) technical problems to be solved

In order to realize the purpose, the utility model adopts the technical scheme that:

the utility model provides an overload protection switch, includes the main part, be provided with zero terminal, quiet terminal in the main part and move the terminal, just the regulation is installed at the main part top move the shift knob that the terminal was used, insulating protection apron is installed to the main part side, install in the main part with the LED subassembly that quiet terminal is connected, it is provided with the bimetallic strip on the terminal to move, the bimetallic strip with be provided with adjustment mechanism between the zero terminal.

Preferably, adjustment mechanism is including setting up contact on the bimetallic strip, install the U-shaped ring on the bimetallic strip, the U-shaped ring is connected on the bimetallic strip, the U-shaped ring other end is provided with adjusting screw, adjusting screw sets up on the main part.

Preferably, the U-shaped ring includes the U-shaped body, U-shaped body pot head is in bimetallic strip is served, the U-shaped body other end is provided with the installation department, it has the block to open on the installation department adjusting screw's recess, with it correspondingly, adjusting screw's pole portion open have with recess matched with cooperation groove.

Preferably, the groove takes a V shape.

Preferably, the LED assembly comprises an LED lamp, a first pin and a second pin are arranged on the LED lamp, the first pin is connected with a first spring, the first spring is arranged on the zero terminal, the second pin is connected with a second spring, and the second spring is arranged on the static terminal.

Preferably, the first spring is fixed on the zero terminal, and the second spring is arranged on the fixed terminal.

Preferably, the first spring is in contact with the adjusting screw

Preferably, a pull rod is arranged on the bimetallic strip, and the other end of the pull rod is arranged on the switch button.

Preferably, pull rod one end is provided with the draw-in groove, the draw-in groove can be used to on the bimetallic strip, just the pull rod other end is provided with the mounting hole, the mounting hole card is in on shift knob's the erection column.

(III) technical effects to be achieved

Compared with the prior art, the beneficial effects of the utility model are that:

one of which, the utility model discloses be provided with the bimetallic strip on moving the terminal, be provided with adjustment mechanism between bimetallic strip and the zero terminal, the current that sets up through adjustment mechanism by traditional fixed knot constructs can not be adjusted and change into the adjustable electric current to can test whole quick-witted temperature rise better, and then can improve the qualification rate that the product dispatched from the factory, be favorable to avoiding unqualified product to flow in market, cause loss and producer to cause negative effects for the consumer.

Two, the utility model discloses adjustment mechanism is including setting up the contact on the bimetallic strip, install the U type ring on the bimetallic strip, the U type ring is connected on the bimetallic strip, the U type ring other end is provided with adjusting screw, adjusting screw sets up in the main part, its reasonable in design, moreover, the steam generator is simple in structure, not only be convenient for manufacture and installation, also be convenient for large batch production manufacturing, and the regulation through adjusting screw is because extrusion U type ring warp, thereby the U type ring is inseparabler with contact connection, the current by traditional fixed knot structure can not be adjusted and is changed into the adjustable electric current, thereby can better test the complete machine temperature rise, and then can improve the qualification rate that the product dispatched from the factory, be favorable to avoiding unqualified product to flow in market, cause loss and producer to cause negative effects for the consumer.

Thirdly, the utility model discloses the U type ring includes the U type body, and U type body pot head is served at bimetallic strip, and the U type body other end is provided with the installation department, and it has the recess that is used for block adjusting screw to open on the installation department, and with it correspondingly ground, adjusting screw's pole portion is opened has the cooperation groove with recess matched with, and the setting of this kind of U type ring is simple, the design and the manufacturing of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is an explosion diagram of the present invention.

Fig. 4 is an exploded view of the adjusting screw and the U-shaped ring of the present invention.

Fig. 5 is the installation schematic diagram of the adjusting mechanism, the LED module zero terminal and the bimetallic strip of the present invention.

Fig. 6 is the schematic view of the installation of the pull rod and the switch button of the present invention.

Fig. 7 is the installation schematic diagram of the insulation protection cover plate and the movable terminal and the bimetallic strip of the present invention.

In the figure: 1, a main body; 2, a zero terminal; 3, a static terminal; 5, adjusting screws; 6, U-shaped ring; 7, an LED component; 8, insulating and protecting a cover plate; 9, moving the terminal; 10, a bimetallic strip; 11, a contact point; 12, a pull rod; 13, a switch button; 41, a first spring; 42, a second spring; 51, a fitting groove; 61, U-shaped body; 62, a mounting portion; 63, a groove.

Detailed Description

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to which the description refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: referring to fig. 1, 2 and 3, an overload protection switch comprises a main body 1, wherein a zero terminal 2, a static terminal 3 and a movable terminal 9 are arranged in the main body 1, a switch button 13 for adjusting the movable terminal 9 is installed at the top of the main body 1, an insulating protective cover plate 8 is installed on the side surface of the main body 1, an LED assembly 7 connected with the static terminal 3 is installed in the main body 1, a bimetallic strip 10 is arranged on the movable terminal 9, and an adjusting mechanism is arranged between the bimetallic strip 10 and the zero terminal 2.

Example two: as shown in fig. 3, fig. 5, fig. 6 and fig. 7, it can be further based on the first embodiment, the adjusting mechanism includes a contact 11 disposed on the bimetal 10, a U-shaped ring 6 is installed on the bimetal 10, the U-shaped ring 6 is connected to the bimetal 10, an adjusting screw 5 is disposed at the other end of the U-shaped ring 6, the adjusting screw 5 is disposed on the main body 1, and when the adjusting screw 5 is tightened or loosened, it is beneficial to realize the tightness between the U-shaped ring 6 and the contact 11 on the bimetal 10. As shown in fig. 4, it is to be noted that the U-shaped ring 6 includes a U-shaped body 61, one end of the U-shaped body 61 is sleeved on one end of the bimetal strip 10 (wherein one end of the U-shaped body 61 is provided with a mounting hole, and correspondingly, one end of the bimetal strip 10 is provided with a plug, and such plug is inserted into the mounting hole to enable one end of the U-shaped body 61 to be sleeved on one end of the bimetal strip 10, so as to connect and cooperate with the bimetal strip 10, thereby achieving tight connection between the two, and facilitating communication between the two, the other end of the U-shaped body 61 is provided with a mounting portion 62, the mounting portion 62 is provided with a groove 63 for clamping the adjusting screw 5, in this embodiment, the groove 63 is in a V shape, and correspondingly, the rod of the adjusting screw 5 is provided with a matching groove 51 matched with the groove 63, thereby facilitating connection between the two more stably.

Example three: as shown in fig. 3, 5 and 6, based on the second embodiment, the LED assembly 7 includes an LED lamp, the LED lamp is provided with a first pin and a second pin, the first pin is connected to a first spring 41, the first spring 41 is disposed on the zero terminal 2, the second pin is connected to a second spring 42, and the second spring 42 is disposed on the static terminal 3. It is noted that the first spring 41 is fixed on the zero terminal 2, and the second spring 42 is arranged on the fixed terminal 3, which further facilitates the installation and is more secure and stable. It is also contemplated that the first spring 41 contacts the adjusting screw 5, which further facilitates the tightness adjustment of the adjusting screw 5 to the U-shaped ring 6.

Example four: as shown in fig. 3, 5, 6 and 7, based on the first embodiment, the second embodiment or the third embodiment, a pull rod 12 is disposed on the bimetal 10, and the other end of the pull rod 12 is disposed on the switch button 13, specifically, one end of the pull rod 12 is provided with a locking slot, the locking slot can be used on the bimetal 10, and the other end of the pull rod 12 is provided with a mounting hole, the mounting hole is locked on the mounting post of the switch button 13, so that the switch button 13 adjusts the on/off of the movable terminal 9.

Because the bimetallic strip 10 has two deformation states, one is a normal state, and the bimetallic strip is in a state of corresponding to the separation of the static terminal 3 and the movable terminal 9 in the normal state; and the second is a deformation state, one end of the second is driven by the adjusting mechanism to swing and deform into the deformation state, and in the deformation state, the upper point 11 of the bimetallic strip 10 keeps contact and conduction with the static terminal 3. When the current is overloaded, the temperature of the bimetallic strip 10 is increased, and the bimetallic strip is automatically deformed from the deformation state to the normal state, so that the circuit can be automatically cut off when the current is overloaded. The automatic power-off protection device is safe to use, has overload protection, and can realize automatic power-off and protect electric appliances under the condition of overhigh current.

The utility model discloses when using: only need be through the clockwise rotation to adjusting screw 5, adjusting screw 5 can be to carrying out U type ring 6 extrusion this moment, and 6 one end of U type ring will closely overlap more and serve 10 one ends of bimetallic strip like this, and when carrying out anticlockwise rotation to adjusting

screw

5, 6 pressure reductions will be said to U type ring this moment, and 6 one end of U type ring cup joints pressure reduction with 10 one ends of bimetallic strip like this, is favorable to adjusting current size. This kind of mode can be tested reducing the temperature rise, then can test complete machine temperature rise test 45K on the contrary, and then can improve the qualification rate that the product dispatched from the factory, is favorable to avoiding unqualified product to flow into market, causes the loss and the producer to cause negative effects for the consumer.

The concrete connected mode of each part in this application file all adopts conventional means such as ripe bolt among the prior art, rivet, and switch and treater internal component all adopt conventional model among the prior art, and its internal structure belongs to prior art structure, and the workman just can accomplish according to the prior art manual and carry out normal operation to it, and circuit connection adopts conventional connected mode among the prior art, does not make specific mention here again.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims

1. The utility model provides an overload protection switch, includes main part (1), be provided with zero terminal (2), quiet terminal (3) and move terminal (9) in main part (1), just main part (1) top is installed and is adjusted move shift knob (13) that terminal (9) were used, main part (1) side-mounting has insulating protection apron (8), install in main part (1) with LED subassembly (7) that quiet terminal (3) are connected, its characterized in that: the movable terminal (9) is provided with a bimetallic strip (10), and an adjusting mechanism is arranged between the bimetallic strip (10) and the zero terminal (2).

2. An overload protection switch as claimed in claim 1, wherein: adjustment mechanism is including setting up contact (11) on bimetallic strip (10), install U type ring (6) on bimetallic strip (10), U type ring (6) are connected on bimetallic strip (10), U type ring (6) other end is provided with adjusting screw (5), adjusting screw (5) set up on main part (1).

3. An overload protection switch as claimed in claim 2, wherein: u type ring (6) are including U type body (61), U type body (61) one end cover is served bimetallic strip (10), U type body (61) other end is provided with installation department (62), it has and is used for the block to open on installation department (62) recess (63) of adjusting screw (5), with it correspondingly, the pole portion of adjusting screw (5) open have with recess (63) matched with cooperation groove (51).

4. An overload protection switch as claimed in claim 3, wherein: the groove (63) is V-shaped.

5. An overload protection switch as claimed in claim 2, 3 or 4 wherein: the LED assembly (7) comprises an LED lamp, a first pin and a second pin are arranged on the LED lamp, the first pin is connected with a first spring (41), the first spring (41) is arranged on the zero terminal (2), the second pin is connected with a second spring (42), and the second spring (42) is arranged on the static terminal (3).

6. An overload protection switch as claimed in claim 5, wherein: the first spring (41) is fixed on the zero terminal (2), and the second spring (42) is arranged on the static terminal (3).

7. An overload protection switch as claimed in claim 5 wherein: the first spring (41) is in contact with the adjusting screw (5).

8. An overload protection switch as claimed in claim 1 or 2 or 3 or 4 or 6 or 7 wherein: and a pull rod (12) is arranged on the bimetallic strip (10), and the other end of the pull rod (12) is arranged on the switch button (13).

9. An overload protection switch as claimed in claim 8, wherein: and a clamping groove is formed in one end of the pull rod (12), the clamping groove can be used for being formed in the bimetallic strip (10), a mounting hole is formed in the other end of the pull rod (12), and the mounting hole is clamped on a mounting column of the switch button (13).