Housing assembly and electronic device

A housing assembly, comprising:

• a middle frame with a middle frame body, an avoidance part, a border frame and a groove;
• a support with a support body and a tailbone;
• and
• a decorative part;
• wherein the border frame is connected to an outer edge of the middle frame body by the avoidance part, the groove is formed by the middle frame body, the avoidance part and the border frame, and the groove is concavely disposed from a first surface of the middle frame towards a thickness direction of the housing assembly;
• wherein the support body comprises a first support surface and a second support surface, the first support surface and the second support surface facing away from each other, the tailbone is connected to an outer edge of the support body and the tailbone is partially located in the groove, and wherein the tailbone comprises a protrusion protruding from the first support surface;
• and
• wherein the decorative part is mounted on the first support surface with an end of the decorative part connected to the tailbone, and wherein the support is mounted on the middle frame with the second support surface facing the middle frame.

An electronic device, comprising:

• a body;
• and
• the housing assembly;
• wherein the body is mounted in the housing assembly;
• wherein the housing assembly comprising:
• a middle frame with a middle frame body, an avoidance part, a border frame and a groove;
• a support with a support body and a tailbone;
• and
• a decorative part;
• wherein the border frame is connected to an outer edge of the middle frame body by the avoidance part, the groove is formed by the middle frame body, the avoidance part and the border frame, and the groove is concavely disposed from a first surface of the middle frame towards a thickness direction of the housing assembly;
• wherein the support body comprises a first support surface and a second support surface, the first support surface and the second support surface facing away from each other, the tailbone is connected to an outer edge of the support body and the tailbone is partially located in the groove, and wherein the tailbone comprises a protrusion protruding from the first support surface;
• and
• wherein the decorative part is mounted on the first support surface with an end of the decorative part connected to the tailbone, and wherein the support is mounted on the middle frame with the second support surface facing the middle frame.