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CN-122028231-A - Heating device

CN122028231ACN 122028231 ACN122028231 ACN 122028231ACN-122028231-A

Abstract

The application discloses a heating device, which comprises a base, a driving mechanism and a first heating mechanism, wherein the base comprises a fixed part and a movable part, the fixed part is used for being connected with a liquid storage device, the first heating mechanism is arranged between the fixed part and the movable part, the driving mechanism can drive the first heating mechanism to switch between a first position and a second position, the driving mechanism comprises a shape memory alloy spring and a biasing piece, the shape memory alloy spring and the biasing piece are both arranged between the fixed part and the movable part, the shape memory alloy spring is used as the second heating mechanism, and the biasing piece is used for biasing the shape memory alloy spring from a first state to a second state. According to the heating device disclosed by the application, the expansion and the contraction of the heating device under the working state are realized through the synergistic effect of the shape memory alloy spring and the biasing piece, so that the adaptability requirement on a working space is reduced. The shape memory alloy spring integrates heating and driving functions, and can realize high-efficiency, compact and intelligent self-adaptive heating.

Inventors

  • LIU RUI
  • LI BING
  • LI YUHAN
  • ZHANG RUOCHEN
  • HAO HAN

Assignees

  • 中钢设备有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. A heating device, which is characterized by comprising a base (100), a driving mechanism (300) and a first heating mechanism (400), wherein the base (100) comprises a fixed part (110) and a movable part (120), the fixed part (110) and the movable part (120) are oppositely arranged, and the fixed part (110) is used for being connected with a liquid storage device; The first heating mechanism (400) is arranged between the fixed part (110) and the movable part (120), and the driving mechanism (300) can drive the first heating mechanism (400) to switch between a first position and a second position, wherein the first heating mechanism (400) has a first heating length, and the first heating mechanism (400) has a second heating length, and the second heating length is larger than the first heating length; The drive mechanism (300) comprises a shape memory alloy spring (310) and a biasing member (320), the shape memory alloy spring (310) and the biasing member (320) being both disposed between the fixed portion (110) and the movable portion (120), the shape memory alloy spring (310) being configured to act as a second heating mechanism, the biasing member (320) being configured to bias the shape memory alloy spring (310) from a first state to a second state.
  2. 2. The heating device of claim 1, wherein the shape memory alloy spring (310) assumes its high temperature memory shape when heated above an austenite phase transition finish temperature, the shape memory alloy spring (310) having a first length that returns to a second length under the influence of the biasing member (320) when the temperature of the shape memory alloy spring (310) cools below a martensite phase transition finish temperature, the second length being less than the first length.
  3. 3. The heating device according to claim 1, wherein the first heating mechanism (400) comprises at least one heating assembly (410), the heating assembly (410) comprises a first heating element (411) and a second heating element (412), a first end of the first heating element (411) is connected to the fixed part (110), a first end of the second heating element (412) is connected to the movable part (120), and a second end of the second heating element (412) is slidably arranged inside the first heating element (411).
  4. 4. A heating device according to claim 3, characterized in that a guiding structure is provided between the first heating element (411) and the second heating element (412) to enable the first heating element (411) to move in the axial direction of the second heating element (412).
  5. 5. A heating device according to claim 4, wherein the guiding structure comprises a guiding groove provided on one of the first heating element (411) and the second heating element (412), the guiding groove extending in the axial direction of the heating element, and a guiding protrusion provided on the other and cooperating with the guiding groove.
  6. 6. A heating device according to claim 3, wherein the heating assembly (410) comprises a plurality of heating elements arranged at intervals along the circumference of the fixing portion (110).
  7. 7. A heating device according to claim 4, wherein the biasing member (320) is a biasing spring coaxially arranged with the shape memory alloy spring (310).
  8. 8. A heating device according to any one of claims 1-7, wherein the fixing portion (110) is detachably connected to the reservoir.
  9. 9. The heating device according to claim 8, wherein the heating device comprises a control mechanism (200), the control mechanism (200) is arranged at the fixing portion (110), the control mechanism (200) comprises a driving circuit and a control module, the driving circuit is respectively connected with the shape memory alloy spring (310) and the first heating mechanism (400), the control module is in communication connection with the driving circuit, and the control module is used for controlling the driving circuit to supply power to the shape memory alloy spring (310) and the first heating mechanism (400).
  10. 10. A heating device according to claim 9, wherein the housing of the control mechanism (200) is a metal housing, the housing being configured as a heat conducting wall.

Description

Heating device Technical Field The application relates to the technical field of heating devices, in particular to a heating device. Background In a hydraulic lubrication system, the viscosity of the oil is critical to the proper operation of the system. When the oil temperature is too low, the viscosity is too high, so that the oil pumping is difficult, cavitation is generated, a pump is damaged, the system starting pressure is high, the energy consumption is high, the fluidity is poor, and the action of an executing mechanism is slow. In the prior art, fluid reservoirs typically employ a fixed size heater, such as a flanged heating tube or an immersed heating rod. The traditional scheme has the defects of single function, complex overall structure due to the fact that the on-off control of the traditional scheme depends on an independent temperature control system, low energy efficiency, incapability of self-adaptive adjustment of heating length along with a working space, large volume, certain requirements on the oil depot space due to the fact that the heating length is fixed and the change of a heater, difficulty in realizing optimal layout of a rigid structure in an irregular liquid storage device with limited space, easiness in causing uneven temperature field and local overheating. Therefore, how to adjust the heating length to widen the application range of the heating device is a technical problem to be solved by those skilled in the art. Disclosure of Invention Therefore, the present application aims to provide a heating device, which can adjust the heating length to widen the application range of the heating device. In order to achieve the purpose, the application provides the following technical scheme: The heating device comprises a base, a driving mechanism and a first heating mechanism, wherein the base comprises a fixed part and a movable part, the fixed part and the movable part are oppositely arranged, and the fixed part is used for being connected with a liquid storage device; The first heating mechanism is arranged between the fixed part and the movable part, and the driving mechanism can drive the first heating mechanism to switch between a first position and a second position; in the first position, the first heating mechanism has a first heating length, and in the second position, the first heating mechanism has a second heating length, the second heating length being greater than the first heating length; the drive mechanism includes a shape memory alloy spring and a biasing member, each disposed between the fixed portion and the movable portion, the shape memory alloy spring configured to act as a second heating mechanism, the biasing member configured to bias the shape memory alloy spring from a first state to a second state. Optionally, in the above heating device, the shape memory alloy spring assumes its high temperature memory shape when heated above an austenite transformation ending temperature, the shape memory alloy spring having a first length that returns to a second length under the action of the biasing member when the temperature of the shape memory alloy spring cools below the martensite transformation ending temperature. Optionally, in the above heating device, the first heating mechanism includes at least one heating component, the heating component includes a first heating element and a second heating element, a first end of the first heating element is connected with the fixed portion, a first end of the second heating element is connected with the movable portion, and a second end of the second heating element is slidably disposed inside the first heating element. Optionally, in the above heating device, a guide structure is provided between the first heating element and the second heating element, so that the first heating element moves in an axial direction of the second heating element. Optionally, in the above heating device, the guide structure includes a guide groove and a guide protrusion, the guide groove is disposed on one of the first heating element and the second heating element, the guide groove extends along an axial direction of the heating element, and the guide protrusion is disposed on the other and is matched with the guide groove. Optionally, in the above heating device, the heating assembly includes a plurality of heating elements disposed at intervals along a circumferential direction of the fixing portion. Optionally, in the heating device, the biasing member is a biasing spring, and the biasing spring is disposed coaxially with the shape memory alloy spring. Optionally, in the heating device, the fixing portion is detachably connected with the liquid storage device. Optionally, in the above heating device, the heating device includes a control mechanism, the control mechanism is disposed on the fixing portion, the control mechanism includes a driving circuit and a control module, the driving circuit is connected with the shape memory allo