Mounting structure of current sensor

• US 20060216800A1
• Filed: 01/19/2006
• Published: 09/28/2006
• Est. Priority Date: 03/02/2005
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Ishihara, Masato, Aratani, Masahiro, Saitou, Takashige
• Granted Patent: US 7,491,097 B2
• Time in Patent Office: Days
• US Class Current: 435/135
• CPC Class Codes: G01R 1/04 Housings; Supporting members; Arrangements of terminals
• CPC Class Codes: G01R 15/207 Constructional details independent of the type of device used
• CPC Class Codes: G01R 31/364 Battery terminal connectors with integrated measuring arrangements
• CPC Class Codes: Y10S 439/957 Auxiliary contact part for circuit adaptation

Abstract

A mounting structure of a current sensor includes: the current sensor including a detection portion; and a connection member for electrically connecting between a battery post of a battery and a harness. The current sensor is mounted on the connection member. The connection member includes a predetermined portion, a current density of which is higher than that of other portions of the connection member. The detection portion of the current sensor is disposed on the predetermined portion of the connection member when the current sensor is mounted on the connection member.

Claims

1. A mounting structure of a current sensor comprising:

the current sensor including a detection portion; and

a connection member for electrically connecting between a battery post of a battery and a harness, wherein

the current sensor is mounted on the connection member,

the connection member includes a predetermined portion, a current density of which is higher than that of other portions of the connection member, and

the detection portion of the current sensor is disposed on the predetermined portion of the connection member when the current sensor is mounted on the connection member.

2. The structure according to claim 1, wherein

the predetermined portion of the connection member includes at least one portion having a cross section, which is smaller than that of the other portions of the connection member.

3. The structure according to claim 1, wherein

the connection member has two ends, one of which is connected to a battery terminal, and the other one of which is connected to a connection terminal of the harness, and

the battery terminal is connected to the battery post of the battery.

4. The structure according to claim 1, wherein

the connection member includes a notch so that a narrow portion of the connection member provides the predetermined portion having high current density, and

at least a part of the current sensor is press-inserted into the notch of the connection member so that the detection portion of the current sensor is disposed on the narrow portion of the connection member.

5. The structure according to claim 4, wherein

the connection member has an oblong plate shape with a width, and

the notch has a width, which is equal to or smaller than a half of the width of the connection member.

6. The structure according to claim 5, wherein

the notch has an oblong shape, and

the connection member includes one side, which is opposite to the notch, the one side of the connection member having L-shape for increasing mechanical strength of the connection member.

7. The structure according to claim 4, wherein

the current sensor includes a magneto resistance effect element.

8. The structure according to claim 7, wherein

the current sensor includes an anisotropic magneto resistance effect element.

9. The structure according to claim 8, wherein

the anisotropic magneto resistance effect element faces the narrow portion of the connection member.

10. The structure according to claim 1, wherein

the current sensor includes a concavity,

the connection member includes a protrusion corresponding to the concavity of the current sensor, and

the protrusion of the connection member is engageable to the concavity of the current sensor.

11. The structure according to claim 1, wherein

the current sensor includes a protrusion,

the connection member includes a concavity corresponding to the protrusion of the current sensor, and

the protrusion of the current sensor is engageable to the concavity of the connection member.