System for adjusting temperature of transmission oil, heat exchange assembly and valve assembly

Patent metadata

Field	Value
Publication number	US-11187464-B2
Application number	US-201716332333-A
Country	US
Kind code	B2
Filing date	May 31, 2017
Priority date	Nov 21, 2016
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

A system for adjusting transmission oil temperature and a heat exchange assembly are provided. The heat exchange assembly includes a heat exchange core, a valve assembly, an adapter base, and a mounting plate fixed with the heat exchange core. The valve assembly is arranged in or partially located in a second passage of the heat exchange core. The valve assembly has a first valve port and a first notch. The heat exchange core further includes a through passage in communication with a fourth port. When a first valve port is opened, a third port is in communication with the fourth port through a first passage, the second passage, the first notch and the first valve port in turn. When the first valve port is closed, the third port is in communication with a fifth port through the first passage, the second passage and the first notch in turn.

First claim

The invention claimed is:

1. A heat exchange assembly, comprising a heat exchange core and a mounting plate fixed to the heat exchange core, and the heat exchange assembly further comprising a first port, a second port, a third port, and a fourth port; the heat exchange core comprising an end plate, and the heat exchange core further comprising a first flow passage and a second flow passage which are isolated from each other, the first flow passage being in communication with the first port and the second port, and the second flow passage being in communication with the third port and the fourth port; and the second flow passage comprising a first passage and a second passage, and
wherein the heat exchange core further comprises a through passage passing through the heat exchange core, the mounting plate is provided with a connection passage for communicating the through passage with the fourth port, and the second passage passes through the heat exchange core and one end of the second passage is in communication with the fourth port;
the heat exchange assembly further comprises a valve assembly and an adapter base, the adapter base is provided with a cavity opposite to the second passage and a fifth port in communication with the cavity, and the adapter base is further provided with a sixth port in communication with the through passage; the valve assembly is provided in or partially provided in the second passage, and the valve assembly comprises a main valve body and a thermal actuator mounted in the main valve body, and one end of the main valve body is fixed to an inner wall corresponding to the cavity in the adapter base in a sealed manner, and another end of the main valve body is fittingly connected to the fourth port or an inner wall of the second passage in a sealed manner, a side wall of the main valve body is provided with a first notch, and a first valve port is provided in the main valve body, the first valve port is located between the first notch and the fourth port, and the first valve port is not in communication or in communication with the fourth port under an action of the thermal actuator; and
wherein, when the first valve port is opened, the third port is in communication with the fourth port through the first passage, the second passage, the first notch, and the first valve port sequentially; and
when the first valve port is closed, the third port is in communication with the fifth port through the first passage, the second passage, and the first notch sequentially.

2. The heat exchange assembly according to claim 1 , wherein the another end of the main valve body is fixed to an inner wall of the fourth port in a sealed manner; the main valve body further comprises a flow guide portion located in the second passage, the first notch is located at the flow guide portion, and an outer diameter of the flow guide portion is smaller than an inner diameter of the second passage.

3. The heat exchange assembly according to claim 2 , wherein two ends of the main valve body are provided with a first opening and a second opening, respectively; the main valve body comprises an accommodation cavity, and the accommodation cavity is located between the first opening and the second opening; a part, corresponding to the accommodation cavity, of the side wall of the main valve body is provided with the first notch; the valve assembly is provided with an upper valve bush at the first opening or at a position close to the first opening, and an end of the thermal actuator is supported by the upper valve bush; the upper valve bush comprises a support portion and a main body portion, a diameter of the first opening is greater than an inner diameter of the accommodation cavity, and a stepped portion is formed between the first opening and the accommodation cavity; a first retainer is provided to allow the support portion to abut against the stepped portion between the first opening and the accommodation cavity, the support portion is in a clearance fit with an inner wall of the first opening, and the main body portion is spaced apart from the inner wall of the first opening at a distance to form a flow passage.

4. The heat exchange assembly according to claim 3 , wherein a first spring and a second spring are provided in the main valve body, and the first spring and the second spring are in a compressed state, two ends of the thermal actuator respectively abut against one end of the first spring and one end of the second spring, and an initial elastic deformation force of the second spring is greater than an elastic deformation force of the first spring when the first valve port is closed; a support cap and a second retainer are further provided inside a cavity of the main body portion, and the support cap is fixed by the second retainer, one end of the second spring abuts against an inner bottom surface of a bottom portion of the main body portion, and another end of the second spring abuts against the support cap, the second spring is in the compressed state, and the second notch is located between the support portion and the second retainer.

5. The heat exchange assembly according to claim 4 , wherein the support cap comprises an outer extension portion, and the outer extension portion is in a clearance fit or a sliding fit with an inner wall of the cavity of the main body portion, the outer extension portion is provided with at least one slot opening, and a passage allowing fluid to flow through is formed between the slot opening and the inner wall of the cavity of the main body portion; and
the main body portion is provided with a third notch at a portion opposite to an upper end portion of the support cap, and the third notch is in communication with the passage allowing fluid to flow through and formed between the slot opening and the inner wall of the cavity of the main body portion.

6. The heat exchange assembly according to claim 5 , wherein the support portion is further provided with a second valve port, and the second valve port is opened and closed by the thermal actuator;
when the first valve port is closed, the second notch is in communication with the first notch through the second valve port, the third notch is in communication with the first notch through the passage allowing fluid to flow through and formed between the slot opening and the inner wall of the cavity of the main body portion and the second valve port sequentially, and a third opening is provided at the bottom portion of the main body portion, and the third opening is in communication with the first notch through the allowing fluid to flow through and formed between the slot opening and the inner wall of the cavity of the main body portion and the second valve port sequentially;
when the second valve port is closed and the first valve port is opened, the third port is in communication with the fourth port through the first passage, the second passage, the first notch and the first valve port sequentially, and the third port is not in communication with the fifth port; and
when the first valve port is closed and the second valve port is opened, the third port is in communication with the fifth port through the first passage, the second passage, the first notch and the second valve port sequentially, and the third port is not in communication with the fourth port.

7. The heat exchange assembly according to claim 1 , wherein the mounting plate comprises a first mounting plate and a second mounting plate, the second mounting plate is further provided with a connection hole connected to the through hole, and the first mounting plate is provided with a groove, two ends of the groove are respectively in communication with the connection hole and the fourth port, and the groove cooperates with the second mounting plate

Assignees

• Zhejiang Sanhua Automotive Components Co Ltd

Inventors

• Qiu Haoming
• Liao Zhiyong
• Luo Yongjin

Classifications

• F28D1/00 Primary

  Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators (F28D5/00 takes precedence) · CPC title

• F01M5/002 Primary

  Cooling · CPC title

• F01M5/007

  Thermostatic control · CPC title

• F28F9/0075

  Supports for plates or plate assemblies · CPC title

• F28F2250/06

  Derivation channels, e.g. bypass · CPC title