Injection mold and injection molding method

An injection molding method, comprising:

• providing an injection mold, wherein the injection mold comprises a housing and at least two covers and an elastic connection structure, the housing is provided with a mold cavity, each of the at least two covers is provided with a plurality of vias, arrangement manners of the plurality of vias on different covers are different, and the elastic connection structure is connected to each of the at least two covers, to implement an elastic connection between each of the at least two covers and the housing;
• selecting one of the covers as a selected cover based on a distribution status of pins of a to-be-injection-molded power module, wherein an arrangement manner of the plurality of vias on the selected cover matches an arrangement manner of the pins of the to-be-injection-molded power module;
• placing the to-be-injection-molded power module in the mold cavity;
• and
• mounting the selected cover to the to-be-injection-molded power module, so that the pins pass through the plurality of vias,
• wherein the elastic connection structure comprises a support rod and an elastic part, the support rod is elastically connected to the at least two covers by using the elastic part, and the support rod is in contact with an inner surface of the housing.

An injection mold, comprising:

• a housing, provided with a mold cavity, wherein the mold cavity is configured to accommodate a power module;
• and
• at least two covers, wherein each of the at least two covers is provided with a plurality of vias, and arrangement manners of the plurality of vias on different covers are different, to match a plurality of pins of power modules of different models, wherein
• the housing selectively fits with one of the at least two covers to jointly locate the power module,
• wherein the injection mold further comprises an elastic connection structure connected to each of the at least two covers, to implement an elastic connection between each of the at least two covers and the housing, and
• wherein the elastic connection structure comprises a support rod and an elastic part, the support rod is elastically connected to the at least two covers by using the elastic part, and the support rod is in contact with an inner surface of the housing.