CN214678628U

CN214678628U - Temperature control coupler

Info

Publication number: CN214678628U
Application number: CN202023347821.2U
Authority: CN
Inventors: 赵崇双
Original assignee: Yueqing Chuanghui Electrical Co ltd
Current assignee: Yueqing Chuanghui Electrical Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-12
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a temperature control coupler, which comprises a seat shell, a contact piece assembly, an anti-dry burning mechanism and a breaking switch mechanism, wherein the breaking switch mechanism comprises a contact breaking stirring piece, the anti-dry burning mechanism is matched with a manual reset assembly, the manual reset assembly comprises a manual reset push rod with a contact end, the manual reset push rod is matched on the seat shell in a sliding way and is matched with a push rod reset spring, the manual reset push rod drives displacement through the push rod reset spring so as to drive the anti-dry burning mechanism to complete the unlocking action of releasing the breaking position of a movable contact piece, the stroke of the manual reset push rod driven by the push rod reset spring comprises an unlocking stroke of driving the anti-dry burning mechanism to release the breaking position of the movable contact piece and a stroke of driving the contact stirring piece to push the movable contact piece and a static contact piece to break, the contact breaking stirring piece realizes the control of the movable contact piece and the static contact piece through the manual reset push rod, the breaking stroke is located after the unlocking stroke. The device has the advantages of single trigger point control and simple and compact structure.

Description

Temperature control coupler

Technical Field

The utility model relates to a temperature control coupler used for electric connection on heating appliances such as a hot water kettle, a tea boiling device and the like.

Background

At present, the electric coupler is widely applied to appliances such as an electric kettle, a tea boiler and the like, wherein a temperature sensing component (a bimetallic strip is widely adopted) is additionally arranged on a temperature control coupler, and the on-off of the temperature control coupler is controlled by the temperature. The traditional temperature control coupler has the phenomenon of repeated on-off dry burning, and when the temperature control coupler is electrically connected with or separated from a corresponding matched connector, the phenomenon of electrode arcing and carbon deposition is easily generated between the electrically connected copper pin and the conductive ring, so that the service life is influenced.

In order to solve the above problems, for example, the chinese patent nos.: CN 201921281924.8, entitled "temperature controlled coupler with dry pot self-locking and segmented disconnection", discloses: the dry-cooking prevention self-locking device (dry-cooking prevention and manual reset) and the temperature control coupler of the sectional disconnecting device are respectively designed on two dynamic and static contact sets (the dynamic and static contact sets comprise a movable contact piece and a static contact piece which are mutually matched), so that the reverse-burning prevention and the dry-cooking prevention are realized, the corresponding dynamic and static contact sets can be electrically connected again only after the temperature control coupler and the corresponding connector are manually disconnected, the power input of a conductive coil on the temperature control coupler is disconnected after the temperature control coupler and the corresponding connector are disconnected, the copper pins of the connector and the conductive coil of the temperature controller can be separated after the movable contact piece and the static contact piece are disconnected, and when the temperature control coupler and the corresponding connector are re-coupled, the copper pins of the connector and the copper coils of the temperature controller can be contacted with each other before the dynamic and static contact sets, so that the connection or separation of the copper pins of the connector and the copper coils of the temperature controller is prevented from being ignited, and the service life of the temperature control coupler is prolonged. However, the device realizes two functions by two completely independent devices, and has the defect of complex structure through the control of two trigger points (formed by a dry pot self-locking ejector rod 301 and a segmented breaking ejector rod member 401 in the literature).

Disclosure of Invention

The utility model discloses the invention purpose: for overcoming the defects existing in the prior art, the utility model provides a temperature control coupler with single trigger point control and simple and compact structure.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a temperature control coupler comprises a seat shell, a connecting support, a contact piece assembly for controlling the conducting ring to be connected with and disconnected from a power supply access pin, an anti-dry heating mechanism and a breaking switch mechanism, wherein the contact piece assembly comprises a movable contact piece and a static contact piece, the breaking switch mechanism comprises a contact breaking toggle piece for toggling the movable contact piece to be separated from the static contact piece in corresponding fit, the anti-dry heating mechanism is matched with a manual reset assembly for removing the breaking position of the anti-dry heating mechanism on the movable contact piece, the manual reset assembly comprises a manual reset push rod with a contact end, the manual reset push rod is matched on the seat shell in a sliding manner, the manual reset push rod is matched with a push rod reset spring for driving the manual reset push rod to reset in a sliding manner, the manual reset push rod is driven to move by the push rod reset spring, so that the anti-dry heating mechanism is driven to complete the unlocking action of removing the breaking position of the movable contact piece, and the manual reset push rod is driven to reset by the push rod reset spring to reset in a stroke including driving the anti-dry heating mechanism to remove the breaking position of the movable contact piece Put the unblock stroke of keeping, its characterized in that: the contact breaking toggle piece is driven by the manual reset push rod to control the on-off of the movable contact piece and the static contact piece correspondingly matched with the movable contact piece, the manual reset push rod is driven by the push rod reset spring to slide in the reset stroke, the contact breaking toggle piece is driven to push the breaking stroke of the movable contact piece and the static contact piece correspondingly matched with the movable contact piece, and the breaking stroke is located behind the unlocking stroke.

By adopting the technical scheme, the contact breaking toggle piece is driven by the manual reset push rod, the manual reset push rod is simultaneously used as a control part for the contact breaking toggle piece and the dry burning prevention mechanism to reset, the dry burning prevention mechanism unlocking and the contact piece assembly breaking are sequentially completed by utilizing the reset stroke of the manual reset push rod resetting, the control of a single trigger point is realized, and the contact breaking mechanism has the advantages of reliable action and compact structure.

Preferably, the seat shell is provided with two groups of contact piece assemblies respectively corresponding to the N-pole conductive ring and the L-pole conductive ring, and the movable contact pieces of the same group of contact piece assemblies are matched with an anti-dry heating mechanism and a contact breaking toggle piece. Under this structural design, same contact subassembly can have simultaneously prevents dry combustion method protection to and the power supply cut-off function after temperature control coupler and the connector separation, use safe and reliable more.

Preferably, the anti-dry burning mechanism comprises an anti-reset locking piece movably arranged on the seat shell, the anti-reset locking piece comprises a mounting part movably mounted on the seat shell, a pushing part for pushing by the manual reset push rod and a locking part for stopping the movable reed at the position where the anti-reset locking piece is opened with the static contact piece, the anti-reset locking piece is matched with an automatic driving piece, the automatic driving piece provides driving force for driving the anti-reset locking piece to move to the position where the locking part stops the movable reed at the position where the anti-reset locking piece is opened with the static contact piece, the contact breaking toggle piece is fixed on the anti-reset locking piece and moves along with the anti-reset locking piece, the manual reset push rod drives the anti-reset locking piece to drive the contact breaking toggle piece to push the movable reed to be broken with the static contact piece during the breaking stroke, and the automatic driving part stores energy, and the manual reset push rod drives the anti-reset locking part to drive the contact breaking toggle part to control the movable reed to be contacted with the static contact through the energy storage force of the automatic driving part during the reverse stroke of the breaking stroke. Under this structural design, the contact divides to stir the piece and combines on preventing the locking piece that resets, and the action through preventing the locking piece that resets drives the contact divides to stir the piece action, has compact structure and the reliable advantage of action.

Preferably, the mounting part of the anti-reset locking part is pivotally mounted on the seat shell, the mounting part of the anti-reset locking part extends towards one side to form a reed control arm and a pushing part which swing around the pivot central axis of the mounting part, the automatic driving part provides driving force for driving the pushing part of the anti-reset locking part to abut against a manual reset push rod, the swinging end of the reed control arm is provided with a fork-shaped end extending to the movable reed, the fork-shaped end comprises long fork teeth and short fork teeth which are arranged along the swinging direction of the reed control arm, the front end of the short fork teeth is shorter than the front end of the long fork teeth, a fork opening is formed between the long fork teeth and the short fork teeth, the short fork teeth are located on one side, facing away from the movement direction of the static contact, of the movable reed corresponding to the movable reed, when the movable reed is in the contact position with the static contact, the movable reed is located in the fork opening, and the long fork teeth form the contact breaking shifting part, and the short fork teeth form the locking part. Under the structural design, the pushing part of the anti-reset locking piece is driven by the automatic driving piece to tend to abut against the manual reset push rod, the movable spring is positioned in the fork opening when the movable spring is in the contact position with the static contact piece, when the movable spring leaf is driven by the temperature control component (usually a bimetallic strip) to deform, the movable spring leaf pushes the short fork tooth to enable the anti-reset locking piece to swing to pass the short fork tooth, then the anti-reset locking piece resets under the driving of the automatic driving piece, the short fork tooth enters the position for stopping the reset of the movable spring leaf, therefore, the movable contact spring is prevented from repeatedly acting under the driving of the temperature control part, the force applied on the manual reset push rod is cancelled, the manual reset push rod is reset and displaced under the driving of the push rod reset spring, the manual reset push rod pushes the anti-reset locking piece to swing, and the unlocking of the movable contact spring by the short fork teeth and the breaking of the movable contact spring and the static contact piece by the shifting of the long fork teeth are sequentially completed; otherwise, when the manual reset push rod is moved by applying force again, the anti-reset locking piece is reset under the driving of the automatic driving piece, and the movable contact piece is reset to be communicated with the static contact piece; the device has the advantages of compact integral structure and stable and reliable action.

Preferably, a counterweight arm extends from the mounting part of the anti-reset locking piece, and the counterweight arm forms the automatic driving piece. Under this structural design, the locking piece that prevents resetting relies on the gravity drive that the counter weight arm formed, has simple structure's advantage.

Preferably, the seat shell is provided with two groups of contact piece assemblies respectively corresponding to the N-pole conducting ring and the L-pole conducting ring, movable springs of the two groups of contact piece assemblies are correspondingly matched with anti-reset locking pieces, and the anti-reset locking pieces of the two groups of contact piece assemblies are connected into a whole through the counterweight arm. Under this structural design, two sets of contact assemblies all have contact on-off control and prevent dry combustion method control function, and two sets of contact assemblies correspond the complex locking piece that prevents resetting and link into an integrated entity through the counter weight arm, and overall structure is compact, and the action is reliable and stable.

The present invention will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a temperature-controlled coupler according to an embodiment of the present invention;

FIG. 2 is an exploded view of a temperature controlled coupler according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the dry burning prevention mechanism according to the embodiment of the present invention.

Detailed Description

Referring to fig. 1-3, the utility model discloses a temperature control coupler, which comprises a seat shell 1, a connecting bracket 2, a contact piece assembly 5 for controlling the conducting ring 31 to be connected with or disconnected from a power input pin 32, an anti-dry burning mechanism and a breaking switch mechanism, wherein the contact piece assembly 5 comprises a movable contact piece 51 and a static contact piece 52, the movable contact piece 51 of the contact piece assembly 5 is matched with a temperature control assembly, the temperature control assembly comprises a bimetallic strip 61 and a top pressure rod 62 in pushing fit with the bimetallic strip 61, the temperature control coupler is provided with power input pins corresponding to two poles of the power, the corresponding conducting ring 31 comprises an N-pole conducting ring and an L-pole conducting ring, therefore, usually, two groups of contact piece assemblies 5 respectively corresponding to the N-pole conducting ring and the L-pole conducting ring are arranged on the seat shell 1, the breaking switch mechanism comprises a contact poking part 7 for poking the movable contact piece 51 to be separated from the static contact piece 52 correspondingly matched, the anti-dry burning mechanism is matched with a manual reset assembly for releasing the position of the breaking contact piece 51 kept by the movable contact piece by the anti-dry burning mechanism, the manual reset assembly comprises a manual reset push rod 81 with a contact end 811, the manual reset push rod 81 is matched on the seat shell 1 in a sliding way, the manual reset push rod 81 is matched with a push rod reset spring 82 for driving the manual reset push rod 81 to slide and reset, the manual reset push rod 81 is driven by the push rod reset spring 82 to displace, so that the anti-dry burning mechanism is driven to complete the unlocking action for releasing the holding of the breaking position of the movable contact piece 51, the stroke of the manual reset push rod 81 driven by the push rod reset spring 82 comprises the unlocking stroke for driving the anti-dry burning mechanism to release the holding of the breaking position of the movable contact piece 51, the contact poking member 7 is driven by the manual reset push rod 81 to realize the on-off of the movable contact piece 51 and the static contact piece 52 correspondingly matched, the manual reset push rod 81 is driven by the push rod reset spring 82 to push the contact poking member 7 to push the breaking stroke of the movable contact piece 51 and the static contact piece 52 correspondingly matched, and the breaking stroke is positioned after the unlocking stroke, and the manual reset push rod continues to drive the contact breaking toggle piece to push the movable contact pieces of one group of contact pieces to break with the corresponding matched static contact pieces after driving the anti-dry heating mechanism to unlock the movable contact pieces of one group of contact pieces. The contact breaking toggle piece is driven by the manual reset push rod, the anti-dry heating mechanism unlocking and the contact piece component breaking are sequentially completed by utilizing the reset stroke of the manual reset push rod resetting, the control of a single trigger point is realized, and the contact breaking toggle piece has the advantages of reliable action and compact structure.

The contact breaking toggle piece and the dry burning prevention mechanism can be arranged in different groups of contact piece assemblies to respectively implement power supply on-off control and dry burning prevention control on an N pole and an L pole, but in order to ensure the safety and reliability of power utilization and make the whole structure compact, the dry burning prevention mechanism and the contact breaking toggle piece 7 are matched on the movable spring leaf 51 of the same group of contact piece assembly 5. Therefore, the same contact piece assembly can simultaneously have the dry burning prevention protection and the contact breaking function after the temperature control coupler is separated from the connector, so that the use is safer and more reliable.

In this embodiment, the anti-dry-burning mechanism includes an anti-reset locking member 41 movably disposed on the housing 1, the anti-reset locking member 41 includes a mounting portion 411 movably mounted on the housing 1, a pushing portion 412 for pushing the manual reset push rod 81 and a locking portion 413 for stopping the movable reed 51 at a position disconnected from the static contact 52, the anti-reset locking member 41 is coupled with an automatic driving member 42, the automatic driving member 42 provides a driving force for driving the anti-reset locking member 41 to move to the locking portion 413 for stopping the movable reed 51 at the position disconnected from the static contact 52, the contact-poking member 7 is fixed on the anti-reset locking member 41 to move along with the anti-reset locking member 41, the manual reset push rod 81 drives the anti-reset locking member 41 to drive the contact-poking member 7 to push the movable reed 51 to the static contact 52 during a breaking stroke, and the automatic driving member 42 stores energy, the manual reset push rod 81 drives the anti-reset locking member 41 to drive the movable reed 51 to push the static contact 52 through the energy storing force of the automatic driving member 42 during a reverse breaking stroke of the manual reset push rod 81 The contact breaking toggle member 7 controls the movable contact piece 51 to be in contact with the stationary contact piece 52. The contact breaking toggle piece is fixedly combined with the anti-reset locking piece, and the action of the anti-reset locking piece drives the contact breaking toggle piece to act, so that the contact breaking toggle piece has the advantages of compact structure and reliable action. Certainly as the utility model discloses feasible scheme, the contact divides disconnected stirring piece can be with prevent that the locking piece is independent through the independent component of manual push rod direct drive that resets, like the extension arm that stretches out on the manual push rod that resets, but just so need set up two drive points on the manual push rod that resets, the structure is complicated.

Further, the mounting portion 411 of the reset-proof locking member 41 is pivotally mounted on the housing 1, the mounting portion 411 of the reset-proof locking member 41 extends towards one side to form a reed control arm and a pushing portion 412 which swing around the pivot central axis of the mounting portion 411, the automatic driving member 42 provides a driving force for driving the pushing portion 412 of the reset-proof locking member 41 to abut against the manual reset push rod 81, the swing end of the reed control arm is provided with a fork-shaped end extending to the movable reed 51, the fork-shaped end comprises a long fork tooth and a short fork tooth arranged along the swing direction of the reed control arm, the front end 4131 of the short fork tooth is shorter than the front end 71 of the long fork tooth, a fork opening 415 is formed between the long fork tooth and the short fork tooth, the short fork tooth is located at one side of the long fork tooth corresponding to the moving direction of the movable reed 51 departing from the static contact 52, the movable reed 51 is located in the fork opening 415 when the movable reed 51 is in the contact position with the static contact 52, and the long fork tooth forms the contact breaking toggle member 7, the short prongs constitute the locking portion 413. The pushing part of the reset-proof locking piece is driven by the automatic driving piece to tend to abut against the manual reset push rod, the movable spring leaf is positioned in the fork opening when the movable spring leaf is in the contact position with the static contact piece, when the movable spring leaf is driven to deform by the temperature control component (usually a bimetallic strip), the movable spring leaf pushes the short fork teeth to drive the anti-reset locking piece to swing until the movable spring leaf is separated from the fork opening and passes the short fork teeth, then the anti-reset locking piece is reset under the driving of the automatic driving piece, the pushing part is abutted against the manual reset push rod, the short fork teeth enter the position for stopping the reset of the movable spring leaf, therefore, the movable contact spring is prevented from repeatedly acting under the driving of the temperature control part, the force applied on the manual reset push rod is cancelled, the manual reset push rod is reset and displaced under the driving of the push rod reset spring, the manual reset push rod pushes the anti-reset locking piece to swing, and the unlocking of the movable contact spring by the short fork teeth and the breaking of the movable contact spring and the static contact piece by the shifting of the long fork teeth are sequentially completed; otherwise, when the manual reset push rod is moved by applying force again, the anti-reset locking piece is reset under the driving of the automatic driving piece, and the movable contact piece is reset to be communicated with the static contact piece; the device has the advantages of compact integral structure and stable and reliable action. In the art, the anti-reset locking piece may be a sliding fit on the seat shell, for example, as described in the CN 201921281924.8 document in the background art, a contact breaking toggle piece may extend from one end of the slider-shaped anti-reset locking piece, and the stroke of the manual reset push rod and the length of the slope surface of the inclined block on the manual reset push rod are increased, so that after the manual reset push rod releases the dry burning protection, the anti-reset locking piece is continuously pushed to slide, and the breaking control of the movable spring piece is realized. However, the stability of the operation is not sufficient, so the pivot design in this embodiment is preferred.

A weight arm extends from the mounting portion 411 of the reset prevention locking member 41, and the weight arm constitutes the automatic driving member 42. The anti-reset locking piece is driven by the gravity formed by the counterweight arm, and has the advantage of simple structure. Certainly as the utility model discloses feasible scheme, automatic drive spare can also be torsional spring or elastic rod or coil spring etc. nevertheless relies on locking piece self gravity that prevents restoring to the throne to form drive power, has simple structure, the convenient advantage of processing.

The movable reeds 51 of the two groups of contact assemblies 5 are correspondingly matched with anti-reset locking pieces 41, and the anti-reset locking pieces 41 of the two groups of contact assemblies 5 are connected into a whole through balance weight arms. Two sets of contact assemblies all have contact on-off control and prevent dry combustion method control function, and two sets of contact assemblies correspond the complex locking piece that prevents resetting and link into an integrated entity through the counter weight arm, and overall structure is compact, and the counter weight arm drive of an organic whole is more reliable and more stable, and the action is reliable and stable.

Claims

1. A temperature control coupler comprises a seat shell, a connecting support, a contact piece assembly for controlling the conducting ring to be connected with and disconnected from a power supply access pin, an anti-dry burning mechanism and a breaking switch mechanism, wherein the contact piece assembly comprises a movable contact piece and a static contact piece, the breaking switch mechanism comprises a contact breaking toggle piece for toggling the movable contact piece to be separated from the static contact piece in corresponding fit, the anti-dry burning mechanism is matched with a manual reset assembly for removing the breaking position of the anti-dry burning mechanism on the movable contact piece, the manual reset assembly comprises a manual reset push rod with a contact end, the manual reset push rod is matched on the seat shell in a sliding manner, the manual reset push rod is matched with a push rod reset spring for driving the manual reset push rod to reset in a sliding manner, the manual reset push rod is driven to move by the push rod reset spring, so that the anti-dry burning mechanism is driven to complete the unlocking action of removing the breaking position of the movable contact piece, and the manual reset push rod is driven to reset by the push rod reset spring to reset in a stroke including driving the anti-dry burning mechanism to remove the breaking position of the movable contact piece The unblock stroke that disconnected position kept, its characterized in that: the contact breaking toggle piece is driven by the manual reset push rod to control the on-off of the movable contact piece and the static contact piece correspondingly matched with the movable contact piece, the manual reset push rod is driven by the push rod reset spring to slide in the reset stroke, the contact breaking toggle piece is driven to push the breaking stroke of the movable contact piece and the static contact piece correspondingly matched with the movable contact piece, and the breaking stroke is located behind the unlocking stroke.

2. The temperature-controlled coupler of claim 1, wherein: the seat shell is provided with two groups of contact piece assemblies respectively corresponding to the N-pole conducting ring and the L-pole conducting ring, and the movable contact pieces of the same group of contact piece assemblies are matched with an anti-dry burning mechanism and a contact breaking toggle piece.

3. The temperature-controlled coupler of claim 1, wherein: the anti-dry burning mechanism comprises an anti-reset locking piece movably arranged on the seat shell, the anti-reset locking piece comprises a mounting part movably mounted on the seat shell, a pushing part for pushing by a manual reset push rod and a locking part for stopping the movable reed at the position where the anti-reset locking piece is opened with the static contact piece, the anti-reset locking piece is matched with an automatic driving piece, the automatic driving piece provides driving force for driving the anti-reset locking piece to move to the position where the locking part stops the movable reed at the position where the anti-reset locking piece is opened with the static contact piece, the contact breaking toggle piece is fixed on the anti-reset locking piece and moves along with the anti-reset locking piece, the manual reset push rod drives the anti-reset locking piece to drive the contact breaking toggle piece to push the movable reed to be broken with the static contact piece during the breaking stroke, and the automatic driving part stores energy, and the manual reset push rod drives the anti-reset locking part to drive the contact breaking toggle part to control the movable reed to be contacted with the static contact through the energy storage force of the automatic driving part during the reverse stroke of the breaking stroke.

4. The temperature-controlled coupler of claim 3, wherein: the installation part of the anti-reset locking part is pivoted on the seat shell, the installation part of the anti-reset locking part extends towards one side to form a reed control arm and a pushing part which swing around the pivoting central axis of the installation part, the automatic driving part provides driving force for driving the pushing part of the anti-reset locking part to abut against a manual reset push rod, the swinging end of the reed control arm is provided with a fork-shaped end extending to the movable reed, the fork-shaped end comprises long fork teeth and short fork teeth which are distributed along the swinging direction of the reed control arm, the front end of the short fork teeth is shorter than the front end of the long fork teeth, fork openings are formed between the long fork teeth and the short fork teeth, the short fork teeth are positioned on one side of the long fork teeth corresponding to the movable reed towards the moving direction separated from the static contact, the movable reed is positioned in the fork openings when being in contact position with the static contact, the long fork teeth form the contact shifting part, and the short fork forms the locking part.

5. The temperature-controlled coupler of claim 4, wherein: the automatic driving piece is a counterweight arm fixed on the mounting part of the anti-resetting locking piece.