CN219203040U - On-off assembly of liquid expanding type temperature controller - Google Patents

Abstract

The utility model discloses an on-off assembly of a liquid expansion type temperature controller, which comprises an insulating mounting column, a spring plate base, a switch spring plate and a fixing plate, wherein the spring plate base and the fixing plate are both arranged on the insulating mounting column in a cantilever mode, the fixing plate is positioned above the spring plate base, a spring plate mounting boss is arranged at the suspension end of the spring plate base, the switch spring plate is arranged at the top of the spring plate mounting boss in a cantilever mode, the suspension end of the switch spring plate extends into the lower part of the fixing plate, a static contact is arranged at the bottom of the fixing plate, and a movable contact is arranged at the position, corresponding to the static contact, of the switch spring plate. According to the utility model, the elastic sheets and the fixing sheets are arranged in a relatively staggered manner, so that the structure arrangement is compact and reasonable, the internal arrangement space is fully utilized, the temperature control range of the temperature controller is enlarged, and the switch control is easy to accurately perform. Meanwhile, by arranging the limiting structure, the action of the switch can be limited in a reasonable range, so that the smoothness and stability of the on-off process of the switch are ensured, and the temperature control accuracy and efficiency are improved.

Description

On-off assembly of liquid expanding type temperature controller

Technical Field

The utility model relates to the technical field of temperature control instruments, in particular to an on-off assembly of a liquid expansion type temperature controller.

Background

The on-off assembly of the liquid expansion temperature controller is a common temperature control instrument for temperature control occasions such as household appliance industry, electric heating equipment and refrigeration industry. Working principle of on-off assembly of liquid expansion temperature controller: by applying the principle of thermal expansion and cold contraction, a medium is filled into a die box power assembly which is formed into a closed space by connecting a diaphragm box, a capillary tube and a temperature sensing cylinder, and the characteristics of thermal expansion and cold contraction of the internal medium are utilized, when the temperature sensing cylinder senses the external temperature change, the volume change of the internal medium enables the diaphragm of the diaphragm box to generate displacement, on-off action is generated on a switch contact, the switch action is switched off when the temperature rises, and the switch is recovered to be closed when the temperature decreases, so that the temperature control function is realized.

The existing liquid expanding type temperature controller is unreasonable and compact in structural arrangement of on-off components and low in space utilization rate, so that the movable range of a switch contact is limited, the problems that the temperature control range is small and the on-off of the switch is difficult to accurately control exist, and meanwhile the problems that the size of the temperature controller is large, the miniaturization is difficult to achieve and the production cost is high are easily caused.

Disclosure of Invention

Aiming at the problems in the background technology, the utility model provides an on-off component of a liquid expansion type temperature controller, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the on-off assembly of the liquid expanding temperature controller comprises an insulating mounting column, a spring plate base, a switch spring plate and a fixing plate, wherein the spring plate base and the fixing plate are all installed on the insulating mounting column in a cantilever mode, the fixing plate is located above the spring plate base, a spring plate installation boss is arranged at the hanging end of the spring plate base, the switch spring plate is installed at the top of the spring plate installation boss in a cantilever mode, the hanging end of the switch spring plate stretches into the lower portion of the fixing plate, a static contact is arranged at the bottom of the fixing plate, and a movable contact is arranged at the position corresponding to the static contact on the switch spring plate.

Preferably, a limiting block is arranged on the spring plate base, an arc-shaped reset spring plate is arranged on the left side wall of the limiting block, an opening for the limiting block and the reset spring plate to pass through is formed in the switch spring plate, the top of the limiting block passes through the opening to extend to the upper side, a reset bayonet is arranged between the movable contact and the opening, and the left end part of the reset spring plate passes through the opening and is inserted into the reset bayonet.

Preferably, the limiting block is provided with a socket, and the right end of the reset elastic piece is inserted into the socket.

Preferably, the reset bayonet is in an M shape as a whole.

Preferably, a limiting protrusion is arranged on the elastic sheet base corresponding to the position of the movable contact.

Preferably, the top of the spring plate installation boss is provided with a convex column, and the switch spring plate is installed on the convex column through the installation hole.

Preferably, guard plates are respectively arranged on the front side and the rear side of the elastic sheet base.

Preferably, the elastic sheet base and the fixing sheet are sleeved on the insulating mounting column, the elastic sheet terminal is sleeved on the upper side of the elastic sheet base, and the fixing sheet terminal is sleeved on the upper side of the fixing sheet.

The utility model has the beneficial effects that:

according to the utility model, the elastic sheets and the fixing sheets are arranged in a relatively staggered manner, so that the structure arrangement is compact and reasonable, the internal arrangement space is fully utilized, and the elastic sheets can be longer under the same space condition to increase the movable range of the movable contact arranged at the end part of the elastic sheets, thereby increasing the temperature control range of the temperature controller and being easy to accurately control the switch. Meanwhile, by arranging the limiting structure, the action of the switch can be limited in a reasonable range, so that the smoothness and stability of the on-off process of the switch are ensured, and the temperature control accuracy and efficiency are improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a schematic view of a spring base structure according to the present utility model;

FIG. 5 is a schematic view of a spring plate according to the present utility model;

in the figure, an insulating mounting column 1; a spring plate base 2; a switch spring 3; a fixing piece 4; a stationary contact 5; a movable contact 6; a limiting block 7; a limit protrusion 8; a knob 9; a spring plate mounting boss 10; a post 11; a guard plate 12; a mounting hole 13; an opening 14; resetting the bayonet 15; a reset spring 16; a socket 17; spring terminals 18; a stator terminal 19.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

Referring to fig. 1 to 5, the on-off assembly of the liquid expanding temperature controller comprises an insulation mounting column 1, a spring plate base 2, a switch spring plate 3 and a fixing plate 4, wherein the spring plate base 2 and the fixing plate 4 are all installed on the insulation mounting column 1 in a cantilever mode, the fixing plate 4 is located above the spring plate base 2, a spring plate installation boss 10 is arranged at the suspended end of the spring plate base 2, the switch spring plate 3 is installed at the top of the spring plate installation boss 10 in a cantilever mode, the suspended end of the switch spring plate 3 extends into the lower portion of the fixing plate 4, a fixed contact 5 is arranged at the bottom of the fixing plate 4, and a movable contact 6 is arranged at the position corresponding to the fixed contact 5 on the switch spring plate 3. In the switching process, a knob insulator 9 is arranged on the upper side of the fixed end close to the switch elastic sheet 3, and the knob insulator 9 is driven by a temperature sensing die box assembly arranged above the temperature controller to realize up-and-down movement. The switch shrapnel 3 is pushed by the knob 9 to make the movable contact 6 and the static contact 5 attracted or separated, so as to realize automatic temperature control. In this example, through setting up switch shell fragment 3 and stationary blade 4 crisscross relatively, structural arrangement is compact and reasonable, can set up stationary blade 4 longer and increase the movable range of the movable contact 6 that sets up in its tip under the same space condition, can increase the control by temperature change scope of temperature controller, also improved the accuracy and the flexibility of control by temperature change, satisfies the user demand of different control by temperature change application scenes.

Further, a limiting block 7 is arranged on the spring plate base 2, an arc-shaped reset spring plate 16 is arranged on the left side wall of the limiting block 7, an opening 14 for the limiting block 7 and the reset spring plate 16 to pass through is formed in the switch spring plate 3, the top of the limiting block 7 passes through the opening 14 to extend to the upper side, a reset bayonet 15 is arranged between the movable contact 6 and the opening 14, and the left end part of the reset spring plate 16 passes through the opening 14 and is inserted into the reset bayonet 15. The limiting block 7 is arranged corresponding to the limiting opening position of the knob insulator 9, and can limit the falling process of the knob insulator 9. Meanwhile, when the suspension end of the switch spring plate 3 swings downwards under the pushing of the knob insulator 9, the reset spring plate 16 is compressed through the reset bayonet 15, and at the moment, the reset spring plate 16 plays a role in stabilizing the downward swinging of the switch spring plate 3 and the disconnection process of the contact. After the knob insulator 9 rises, the switch spring plate 3 rebounds, and at the moment, the restoring force of the reset spring plate 16 acts on the auxiliary switch spring plate 3 to stably rebound and reset, so that the switch on-off action is stabilized. And, be provided with spacing protruding 8 on the shell fragment base 2 in the position of corresponding movable contact 6, can play support and spacing effect after moving down to movable contact 6, further promote switch break-make action stability. The limiting block 7 is provided with a socket 17, and the right end of the reset elastic piece 16 is inserted into the socket 17, so that the reset elastic piece 16 can be detached and replaced. In addition, the whole reset bayonet 15 is M-shaped, the inner wall of the reset bayonet 15 is in point contact with the side wall of the reset elastic piece 16, so that the contact area is reduced, and the possibility of mutual abrasion and interference is reduced.

Further, the top of the spring plate installation boss 10 is provided with the convex column 11, the switch spring plate 3 is installed on the convex column 11 through the installation hole 13, the switch spring plate 3 is ensured to be stably installed and is easy to detach, and maintenance and replacement are facilitated. Guard plates 12 are respectively arranged on the front side and the rear side of the spring plate base 2, so that the stability of the on-off structure is ensured.

Further, the shell fragment base 2 and the stationary blade 4 are all sheathed on the insulating mounting column 1, the shell fragment terminal 18 is sheathed on the upper side of the shell fragment base 2, the stationary blade terminal 19 is sheathed on the upper side of the stationary blade 4, the shell fragment terminal 18 and the stationary blade terminal 19 are used for communicating with an external temperature control loop, and the shell fragment terminal 18 and the stationary blade terminal 19 are sheathed on the insulating mounting column 1 and are respectively communicated with the shell fragment base 2 and the stationary blade 4, so that the shell fragment base is easy to detach and replace.

Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims (8)

1. An on-off assembly of a liquid expansion temperature controller is characterized in that: including insulating erection column (1), shell fragment base (2), switch shell fragment (3) and stationary blade (4), shell fragment base (2) and stationary blade (4) are all cantilever-mounted on insulating erection column (1), stationary blade (4) are located shell fragment base (2) top, set up shell fragment installation boss (10) on the unsettled end of shell fragment base (2), switch shell fragment (3) are cantilever-mounted at shell fragment installation boss (10) top, switch shell fragment (3) suspension end stretches into stationary blade (4) below, stationary blade (4) bottom sets up stationary contact (5), the position that corresponds stationary contact (5) on switch shell fragment (3) sets up movable contact (6).

2. The on-off assembly of a liquid expansion thermostat of claim 1, wherein: be provided with stopper (7) on shell fragment base (2), install arc formula shell fragment (16) that reset on stopper (7) left side wall, open on switch shell fragment (3) and supply stopper (7) and opening (14) that shell fragment (16) passed reset, stopper (7) top is passed opening (14) and is stretched to the top, is provided with between movable contact (6) and opening (14) and resets bayonet socket (15), inserts in reset bayonet socket (15) after opening (14) are passed to reset shell fragment (16) left end.

3. An on-off assembly of a liquid expansion thermostat according to claim 2, wherein: the limiting block (7) is provided with a socket (17), and the right end of the reset spring piece (16) is inserted into the socket (17).

4. An on-off assembly of a liquid expansion thermostat according to claim 2 or 3, characterized in that: the reset bayonet (15) is in an M shape as a whole.

5. The on-off assembly of a liquid expansion thermostat of claim 4, wherein: and a limiting bulge (8) is arranged on the elastic sheet base (2) corresponding to the position of the movable contact (6).

6. An on-off assembly of a liquid expansion thermostat according to claim 1 or 5, characterized in that: the top of the installation boss (10) is provided with a convex column (11), and the switch elastic sheet (3) is installed on the convex column (11) through an installation hole (13).

7. The on-off assembly of a liquid expansion thermostat of claim 6, wherein: guard plates (12) are respectively arranged on the front side and the rear side of the elastic sheet base (2).

8. An on-off assembly of a liquid expansion thermostat according to claim 1 or 7, characterized in that: the elastic sheet base (2) and the fixing sheet (4) are sleeved on the insulating mounting column (1), the elastic sheet terminal (18) is sleeved on the upper side of the elastic sheet base (2), and the fixing sheet terminal (19) is sleeved on the upper side of the fixing sheet (4).

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