Fuse unit and conductive module

Abstract

To increase manufacturing flexibility. [Solution] The circuit protection component comprises a circuit protection component 30, a first terminal fitting 40 that directly electrically connects a first electrical connection portion 41 to a first electrode 31 of the circuit protection component, a second terminal fitting 50 that directly electrically connects a second electrical connection portion 51 to a second electrode 32 of the circuit protection component, and a housing component 70 in which the first electrical connection portion, the second electrical connection portion, and the circuit protection component installed spanning the first and second electrical connection portions are housed in a housing chamber 70a. The housing component comprises a plurality of housing members 70A, 70B that are assembled and fixed together to form a housing chamber inside, and the plurality of housing members are molded as separate members from the first electrical connection portion, the second electrical connection portion, and the circuit protection component, and surround the first electrical connection portion, the second electrical connection portion, and the circuit protection component to house them in the housing chamber.

Claims

1. A circuit protection component that melts a fusible part when an overcurrent flows between the first electrical connection target and the second electrical connection target, A first terminal fitting that directly electrically connects the first electrical connection portion to the first electrode of the circuit protection component, and also directly or indirectly electrically connects to the first object to be electrically connected, A second terminal fitting that directly electrically connects the second electrical connection portion to the second electrode of the circuit protection component, and also directly or indirectly electrically connects to the second object to be electrically connected, An electrically insulating housing component in which the first electrical connection, the second electrical connection, and the circuit protection component installed spanning the first electrical connection and the second electrical connection are housed in a housing chamber, Equipped with, The aforementioned housing component comprises a plurality of housing members that are assembled and fixed together to form the housing chamber inside, A fuse unit characterized in that the plurality of housing members are molded as separate members from the first electrical connection portion, the second electrical connection portion, and the circuit protection component, and surround the first electrical connection portion, the second electrical connection portion, and the circuit protection component and house them in the housing chamber.

2. The housing component comprises a plurality of housing members, a first housing member and a second housing member, which house the first electrical connection part, the second electrical connection part and the circuit protection part by sandwiching them between each other and housing them in the housing chamber. The first housing member is provided with an installation surface on which the first electrical connection and the second electrical connection are placed. A first positioning structure is provided between the mounting surface and the first electrical connection portion, which is responsible for positioning the first electrical connection portion relative to the mounting surface. A second positioning structure is provided between the mounting surface and the second electrical connection portion, which is responsible for positioning the second electrical connection portion relative to the mounting surface. The fuse unit according to claim 1, characterized in that the first positioning structure and the second positioning structure position the first electrical connection and the second electrical connection by matching the distance between the contact portion with the first electrode in the first electrical connection and the contact portion with the second electrode in the second electrical connection to the electrode pitch between the first electrode and the second electrode.

3. The fuse unit according to claim 2, characterized in that the first housing member is molded as a base member on which the first electrical connection portion and the second electrical connection portion are placed on the mounting surface.

4. The aforementioned housing component has connecting portions that are connected to the first housing member and the second housing member, respectively. The fuse unit according to claim 2, characterized in that the connecting portion displaces the relative positions between the first housing member and the second housing member between a first state in which the first electrical connection portion and the second electrical connection portion can be installed on the installation surface and a second state in which the housing chamber is formed.

5. The device includes a wiring component interposed between the second terminal fitting and the second object to be electrically connected, The fuse unit according to claim 1, 2, 3, or 4, characterized in that the wiring component has a conductor portion that directly electrically connects one end to the second terminal fitting and the other end to the second object to be electrically connected, either directly or indirectly.

6. The fuse unit according to claim 1, 2, 3, or 4, characterized in that it comprises an electrically insulating covering resin portion enclosing the circuit protection component, the first electrical connection portion, and the second electrical connection portion.

7. A connecting conductor that is directly electrically connected to the electrode terminals of the battery cells that make up the battery module, A fuse unit that indirectly electrically connects the connecting conductor to a battery monitoring unit that monitors the battery state of the battery cell, Equipped with, The aforementioned fuse unit is A circuit protection component that melts a fusible part when an overcurrent flows between the connecting conductor and the battery monitoring unit, A first terminal fitting that directly electrically connects the first electrical connection portion to the first electrode of the circuit protection component, and directly or indirectly electrically connects to the connecting conductor, A second terminal fitting that directly electrically connects the second electrical connection portion to the second electrode of the circuit protection component and indirectly electrically connects to the battery monitoring unit, A wiring component interposed between the second terminal fitting and the battery monitoring unit, An electrically insulating housing component in which the first electrical connection, the second electrical connection, and the circuit protection component installed spanning the first electrical connection and the second electrical connection are housed in a housing chamber, Equipped with, The aforementioned wiring component includes a conductor portion that has one end directly electrically connected to the second terminal fitting and the other end directly or indirectly electrically connected to the battery monitoring unit. The aforementioned housing component comprises a plurality of housing members that are assembled and fixed together to form the housing chamber inside, A conductive module characterized in that the plurality of housing members are molded as separate members from the first electrical connection portion, the second electrical connection portion, and the circuit protection component, and surround the first electrical connection portion, the second electrical connection portion, and the circuit protection component and house them in the housing chamber.

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