Paper packaging box for electrical components

Abstract

The application discloses a paper packaging box of an electric appliance element, which comprises a box body and an upper cover, the box body is cut and folded from a paper plate, the box body comprises a first side plate, a second side plate, a third side plate, a fourth side plate and a bottom plate, one end of the upper cover is rotatably connected with the upper end of the first side plate, the other end of the upper cover is buckled with the upper end of the second side plate of the box body, the upper end of the second side plate is rotatably connected with a first supporting mechanism which can be embedded into the inner cavity of the box body and forms a support for the packaged product, the upper end of the third side plate and the fourth side plate is rotatably connected with a second supporting mechanism which can be embedded into the inner cavity of the box body and forms a support for the packaged product. The paper packaging box of the electric appliance element is suitable for packaging contactors or molded case circuit breakers and other electric appliance elements, has a good packaging effect and a low packaging cost.

Description

Technical Field

[0001] This invention relates to a paper packaging box for electrical components. Background Technology

[0002] Currently, electrical components such as contactors and molded case circuit breakers are typically packaged in cardboard boxes before leaving the factory. To prevent damage from vibration and collision during handling and transportation, foam padding, cardboard, or other fillers are usually inserted between the cardboard box and the product. These materials provide cushioning and shock absorption, preventing damage during handling and transportation. However, foam padding, cardboard, and other fillers are relatively independent components and need to be manufactured or purchased separately, making the packaging process more cumbersome and increasing product packaging costs.

[0003] In addition, existing paper packaging boxes used to package the above-mentioned products are usually made by cutting a piece of paperboard and then folding it. The base board after cutting is usually cross-shaped, and a lot of waste is generated during cutting, which also increases the production cost of paper packaging boxes.

[0004] There are some electrical components, such as... Figure 1 , 2 The contactor product shown typically includes a narrower upper part a and a wider lower part b, with a stepped surface c1 or c2 between the upper part a and the lower part b, and auxiliary contacts d are also provided on the side of the contactor. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a paper packaging box suitable for packaging electrical components such as contactors or molded case circuit breakers, which has better packaging effect and lower packaging cost.

[0006] This invention provides a paper packaging box for electrical components, comprising a box body and a top cover made of paperboard cut and folded. The box body includes two opposing first and second side panels, two opposing third and fourth side panels, and a bottom plate. The box body has an inner cavity. The first, second, third, and fourth side panels respectively form the four sides of the inner cavity, and the bottom plate forms the bottom wall of the inner cavity. One end of the top cover is rotatably and integrally connected to the upper end of the first side panel, and the other end of the top cover is engaged with the upper end of the second side panel of the box body to close it with an opening at the upper end of the inner cavity. The upper end of the second side panel is rotatably and integrally connected to a first... The first support mechanism can be rotatably embedded into the inner cavity of the box. The first support mechanism includes a first support plate and a connecting plate. The connecting plate is integrally connected between the upper ends of the first support plate and the second side plate. When the first support plate is embedded in the inner cavity of the box, its four edges cooperate with the four side plates of the box to limit its movement, preventing it from wobbling. The first support plate divides the inner cavity of the box into an upper chamber for accommodating the upper part of the packaged product and a lower chamber for accommodating the lower part of the packaged product. When the packaged product is placed in the inner cavity of the box, its upper part is accommodated in the upper chamber, and its lower part is accommodated in the lower chamber. The first support plate includes and The packaged product has a first connecting hole for fitting. A first support plate can be fitted through the first connecting hole between the upper and lower parts of the packaged product. The first support plate is used to abut and limit the movement of the packaged product upwards by engaging with the stepped surface between the upper and lower parts of the packaged product. The upper ends of the third and fourth side plates are rotatably and integrally connected to a second support mechanism. The second support mechanism can be rotatably embedded in the inner cavity of the box. The second support mechanism includes a support block, which includes a top plate, a side plate, and a bottom plate integrally connected in sequence. The top plate is connected to the upper end of the third or fourth side plate. The support block is embedded in the box. When the inner cavity is in place, the top plate of the support block and the upper ends of the four side plates of the box are flush. The bottom plate of the support block and the first support plate cooperate to limit the movement. This allows the support block to be held between the top cover and the first support plate when the top cover and the top of the box are fastened together, preventing the support block from shaking. The side plates of the support block are provided with second connecting holes that cooperate with the upper part of the packaged product. The upper part of the packaged product is embedded in the second connecting holes and is restricted by the inner edge of the second connecting holes, which further improves the positioning effect of the packaged product. The top plate, bottom plate, and sides of the support block cooperate with the first side plate and the connecting plate to limit the movement, preventing the support block from shaking.

[0007] Furthermore, a storage chamber is formed between the top plate, bottom plate, side plate of the support block and the side plate of the box body. The storage chamber can be used to accommodate accessories of the packaged product, making the overall structure more compact.

[0008] Furthermore, the top plate of the support block is provided with a first through hole. The first through hole can be used to observe whether there is an object in the storage chamber, and can also be used to insert a finger to facilitate the removal of the second support mechanism from the inner cavity of the box.

[0009] Furthermore, a second through hole is provided on the first support plate or between the first support plate and the side plate of the box body. The second through hole allows a finger to be inserted, making it convenient to remove the first support mechanism from the inner cavity of the box body.

[0010] Furthermore, the first connecting hole of the first support plate includes two opposing first side edges and two opposing second side edges. The two opposing first side edges and the two opposing second side edges are rotatably connected to the second support plate. The second support plate can be used to make contact with the upper side of the packaged product, thereby improving the contact effect with the packaged product and thus improving the positioning and protection effect of the packaged product.

[0011] Furthermore, both second side edges are provided with notches, and the second support plate connected to the second side edge forms a rotatable integral connection with the inner edge of the notch. The notch allows the protrusion on the side of the packaged product to be inserted. For example, when the packaged product is a contactor, the auxiliary contact installed on its side can be inserted into the notch. The second support plate connected to the second side edge can improve the contact and engagement effect with the auxiliary contact.

[0012] Furthermore, the second connecting hole is arranged on the side plate and bottom plate of the support block, which can improve the limiting fit with the packaged product. In other embodiments, the second connecting hole can also be arranged on the side plate, bottom plate, and top plate of the support block simultaneously.

[0013] Furthermore, the device also includes a shock-absorbing pad embedded in the bottom of the box cavity. The shock-absorbing pad includes a bottom plate and side baffles arranged around the upper part of the bottom plate. A slot is formed between the bottom plate and the side baffles to accommodate the lower part of the packaged product. The side baffles and the bottom plate are integrally connected. The shock-absorbing pad is formed by cutting and folding sponge or foam board. The bottom plate is formed in the middle of the sponge board, and the side baffles are formed around its perimeter. A rotating connection is formed between the side baffles and the bottom plate. When the shock-absorbing pad is embedded in the bottom of the box cavity, its bottom plate cooperates with the box bottom plate for support, and its side baffles cooperate with the side plates around the box cavity for positioning. The shock-absorbing pad improves the shock absorption effect on the packaged product and enhances the positioning effect of the lower part of the packaged product, making it less prone to shaking. The shock-absorbing pad of the present invention has a simple structure and is easy to manufacture.

[0014] Furthermore, the four side panels of the box are integrally connected into a strip structure. The two side panels at the farthest ends of the strip structure are bonded together by an inner lining plate integrally connected to one of the side panels. The bottom plate of the box is formed by four plates integrally connected to the lower ends of the four side panels and fastened together. This makes the overall shape of the box and the top cover relatively regular and tends to be rectangular when they are not folded. This reduces waste when the paper board is cut into basic boards.

[0015] Furthermore, the other end of the top cover is rotatably and integrally connected with a tongue and a lock hole. When the tongue is inserted into the inner cavity of the box, it engages with the connecting plate of the first support mechanism. The upper end of the second side plate of the box is rotatably and integrally connected with a lock tongue that engages with the lock hole for locking. The top cover is locked by the engagement of the lock tongue and the lock hole, preventing the top cover from opening on its own.

[0016] The beneficial effects of this invention are: This invention is applicable to the packaging of electrical components (such as contactors, molded case circuit breakers, etc.) that have a narrow upper part and a wide lower part, and a stepped surface between the upper and lower parts. The box body, the top cover, the first support mechanism and the second support mechanism are all made of a single piece of paperboard through cutting and folding. The structure is simple, which facilitates the processing and manufacturing of the packaging box. The packaging operation is convenient, which can reduce the packaging cost of the product and has a good packaging effect. The packaged product is not easy to shake in the packaging box. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a contactor in the prior art according to an embodiment of the present invention;

[0018] Figure 2 This is a front view of a contactor in the prior art according to an embodiment of the present invention;

[0019] Figure 3 This is a structural diagram of an embodiment of the present invention;

[0020] Figure 4 This is a top view of an embodiment of the present invention;

[0021] Figure 5 for Figure 4 Sectional view along section line AA;

[0022] Figure 6 for Figure 4 Sectional view along section line BB;

[0023] Figure 7 This is an exploded view of the structure of an embodiment of the present invention;

[0024] Figure 8 This is a diagram showing the usage state of the second support mechanism according to an embodiment of the present invention;

[0025] Figure 9 This is a diagram showing the usage state of the first support mechanism according to an embodiment of the present invention;

[0026] Figure 10 This is a structural diagram of the sponge or foam board according to an embodiment of the present invention;

[0027] Figure 11 The structure of the shock-absorbing pad in an embodiment of the present invention Figure 1 ;

[0028] Figure 12 The structure of the shock-absorbing pad in an embodiment of the present invention Figure 2 ;

[0029] Figure 13 This is a partial cross-sectional view of the shock-absorbing pad according to an embodiment of the present invention;

[0030] Figure 14 This is a structural diagram of the base plate (unfolded state) that constitutes the box body and the top cover in an embodiment of the present invention. Detailed Implementation

[0031] Examples of paper packaging boxes for electrical components of the present invention Figure 1-14 As shown: It includes a box body 11 and a top cover 12 made of paperboard cut and folded. The box body 11 includes two opposing first side plates 111 and 112, two opposing third side plates 113 and 114, and a bottom plate 115. The box body 11 has an inner cavity 110. The first, second, third, and fourth side plates respectively form the four sides of the inner cavity 110, and the bottom plate 115 forms the bottom wall of the inner cavity 110. One end of the top cover 12 is rotatably and integrally connected to the upper end of the first side plate 111, and the other end of the top cover 12 is engaged with the upper end of the second side plate 112 of the box body 11, and is closed by engaging with the opening at the upper end of the inner cavity 110.

[0032] The upper end of the second side plate 112 is rotatably and integrally connected to a first support mechanism 13. The first support mechanism 13 can be rotatably embedded into the inner cavity 110 of the box body 11. The first support mechanism 13 includes a first support plate 131 and a connecting plate 132. The connecting plate 132 is rotatably and integrally connected between the first support plate 131 and the upper end of the second side plate 112. When the first support plate 131 is embedded in the inner cavity 110 of the box body, its four edges cooperate with the four side plates of the box body to limit its movement, so that the first support plate 131 will not shake. The connecting plate 132 is vertically placed close to the inner side of the second side plate 112. The first support plate 131 divides the inner cavity of the box body. The box is divided into an upper chamber for accommodating the upper part a of the packaged product and a lower chamber for accommodating the lower part b of the packaged product. When the packaged product is placed in the inner cavity 110 of the box, its upper part a is accommodated in the upper chamber and its lower part b is accommodated in the lower chamber. The first support plate 131 includes a first connecting hole 1310 that fits into the packaged product. The first support plate 131 can be fitted between the upper and lower parts of the packaged product through the first connecting hole 1310. The first support plate 131 is used to cooperate with the stepped surface c1 between the upper and lower parts of the packaged product for abutment and limitation. In other embodiments, it can also cooperate with the stepped surface c2 for limitation, restricting the upward movement of the packaged product.

[0033] The first support plate 131 has an open second through hole 133, which allows a finger to be inserted to facilitate removing the first support mechanism 13 from the inner cavity 110 of the box, making disassembly and assembly convenient. In other embodiments, the second through hole 133 may also be closed.

[0034] The first connecting hole 1310 of the first support plate 131 includes two oppositely arranged first side edges and two oppositely arranged second side edges. The two oppositely arranged first side edges and the two oppositely arranged second side edges are rotatably connected to the second support plate 1311. The second support plate 1311 can be used to cooperate and contact with the side of the upper part a of the packaged product, improve the contact effect with the packaged product, and thus improve the positioning and protection effect of the packaged product.

[0035] Both second side edges are provided with recesses 1312. The second support plate 1311 connected to the second side edge forms a rotatable integral connection with the inner edge of the recess 1312. The recess 1312 allows the protrusions on the side of the packaged product to be inserted. For example, when the packaged product is a contactor, the auxiliary contact d installed on its side can be inserted into the recess 1312. The second support plate 1311 connected to the second side edge can improve the contact fit with the auxiliary contact d. When the upper part of the contactor product is only provided with an auxiliary contact d on one side, the second support plate 1311 connected to the second side edge on the other side does not need to be folded, which facilitates the installation of contactor products with one or two auxiliary contacts d, and also facilitates the forward and reverse installation of contactor products with one auxiliary contact d.

[0036] The upper ends of the third side plate 113 and the fourth side plate 114 are rotatably and integrally connected to a second support mechanism 14. The second support mechanism 14 can be rotatably embedded into the inner cavity 110 of the box. The second support mechanism 14 includes a support block, which includes a top plate 141, a side plate 142, and a bottom plate 143 integrally connected in sequence. The top plates 141 of the two second support mechanisms 4 are rotatably and integrally connected to the upper ends of the third side plate 113 and the fourth side plate 114, respectively. When the support block is embedded into the inner cavity 110 of the box, its top plate 141 is flush with the upper ends of the four side plates of the box. The bottom plate 143 of the support block and the first support plate The first support plate 131 is used for positioning, which allows the support block to be abutted between the top cover 12 and the upper part of the box body 11 when the top cover 12 and the upper part of the box body 11 are fastened together, preventing the support block from shaking. The side plate 142 of the support block is provided with a second connecting hole 144 that mates with the upper part a of the packaged product. The upper part of the packaged product is fitted into the second connecting hole 144, and the inner edge of the second connecting hole 144 restricts the positioning effect of the packaged product. The top plate 141, bottom plate 143, and sides of the side plate 142 of the support block respectively mate with the first side plate 111 and the connecting plate 132 for positioning, preventing the support block from shaking. Figure 6 As shown.

[0037] like Figure 5 As shown, a storage chamber 145 is formed between the top plate 141, bottom plate 143, side plate 142 of the support block and the third side plate 113 or fourth side plate 114 of the box body. The storage chamber 145 can be used to accommodate accessories of the packaged product, making the overall structure more compact.

[0038] The top plate 141 of the support block is provided with a first through hole 1411. The first through hole 1411 can be used to observe whether there is an object in the storage chamber 145, and can also be used to insert a finger to facilitate the removal of the second support mechanism 14 from the inner cavity 110 of the box, making it easy to disassemble and assemble.

[0039] like Figure 5 , 7 As shown, the second connecting hole 144 is arranged on the side plate 142 and the bottom plate 143 of the support block, which can improve the limiting fit with the packaged product. In other solutions, the second connecting hole 144 can also be arranged on the side plate 142, the bottom plate 143, and the top plate 141 of the support block simultaneously. In addition, the second support plate 1311 is also embedded in the second connecting hole 144, and the two sides of the second support plate 1311 also form a limiting fit with the inner edge of the second connecting hole 144, further improving the packaging effect.

[0040] The bottom of the inner cavity 110 of the box is also fitted with a shock-absorbing pad 2. The shock-absorbing pad 2 includes a bottom pad plate 21 and side baffles 22 arranged around the upper part of the bottom pad plate 21. A slot 20 is formed between the bottom pad plate 21 and the side baffles 22 to fit into the lower part of the packaged product. The side baffles 22 and the bottom pad plate 21 are integrally connected. The shock-absorbing pad 2 is formed by cutting and folding sponge or foam board. Figure 10 As shown, a bottom pad 21 is formed in the middle of the sponge board, and side baffles 22 are formed around the perimeter of the sponge board. A rotating connection 23 is cut between the side baffles 22 and the bottom pad 21. Specifically, a portion is retained during the cutting process as the rotating connection 23. When the shock-absorbing pad 2 is embedded in the bottom of the box cavity 110, its bottom pad 21 cooperates with the box bottom plate 115 for support, and its surrounding side baffles 22 cooperate with the surrounding side plates of the box cavity for positioning. The shock-absorbing pad 2 improves the shock absorption effect on the packaged product and enhances the positioning effect on the lower part b of the packaged product, making it less prone to shaking. The shock-absorbing pad 2 of this invention has a simple structure and is easy to manufacture.

[0041] The other end of the upper cover 12 is rotatably and integrally connected with a tongue 121, and also has a locking hole 122. When the tongue 121 is inserted into the inner cavity 110 of the box, it engages with the connecting plate 132 of the first support mechanism (e.g., Figure 6As shown), the upper end of the second side plate 112 of the box is rotatably connected to a locking tongue 1121 that engages with the lock hole 122 for locking. The upper cover 12 is locked by the engagement of the locking tongue 1121 and the lock hole 122, preventing the upper cover 12 from opening on its own.

[0042] In this embodiment of the invention, the structure of the base plate (unfolded state) constituting the box body and the top cover is as follows: Figure 14 As shown, the four side panels (111, 112, 113, 114) of the box body are integrally connected to form a strip structure. The two side panels located at the farthest ends of the strip structure (the first side panel 111 and the third side panel 113 in this embodiment) are rotatably and integrally connected to the inner lining panel 1111 on the first side panel 111 and glued to the inner side of the third side panel 113. The bottom plate 115 of the box body is formed by four plates 1151 that are rotatably and integrally connected to the lower ends of the four side panels and are connected by fastening. This makes the overall shape of the box body and the top cover relatively regular and tends to be rectangular when they are not folded, which can reduce the generation of waste when the paper board is cut into the basic board.

[0043] The rotatable integral connection described in this invention refers to two connected components that are integrally connected, but the relative rotation between the two components can be achieved through natural or machine-generated creases / indentations at the connection point.

[0044] The above embodiments are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A paper packaging box for an electrical component, comprising a box body cut and folded from paperboard, a top cover, the box body including two opposing first and second side plates, two opposing third and fourth side plates, and a bottom plate, one end of the top cover being rotatably and integrally connected to the upper end of the first side plate, and the other end of the top cover being fastened to the upper end of the second side plate of the box body, characterized in that: The upper end of the second side plate is rotatably and integrally connected to a first support mechanism. The first support mechanism can be rotatably embedded into the inner cavity of the box. The first support mechanism includes a first support plate and a connecting plate. The connecting plate is connected between the upper ends of the first support plate and the second side plate. When the first support plate is embedded into the inner cavity of the box, its four edges cooperate with and limit the position of the four side plates of the box. The first support plate divides the inner cavity of the box into an upper chamber for accommodating the upper part of the packaged product and a lower chamber for accommodating the lower part of the packaged product. The first support plate includes a first connecting hole for fitting with the packaged product. The first support plate is used for step-like contact and limiting the position of the upper and lower parts of the packaged product. The upper ends of the third and fourth side plates are rotatably and integrally connected to a second support mechanism. The second support mechanism can be rotatably embedded into the inner cavity of the box. The second support mechanism includes a support... The support block includes a top plate, side plates, and a bottom plate integrally connected in sequence. The top plate is connected to the upper end of the third or fourth side plate. When the support block is embedded in the inner cavity of the box, the upper ends of its top plate and the four side plates of the box are flush. The bottom plate of the support block cooperates with the first support plate for positioning. The side plates of the support block are provided with second connecting holes that cooperate with the upper part of the packaged product for insertion. The top plate, bottom plate, and side plates of the support block are respectively cooperated with the first side plate and the connecting plate for positioning. The first connecting hole of the first support plate includes two oppositely arranged first side edges and two oppositely arranged second side edges. The two oppositely arranged first side edges and the two oppositely arranged second side edges are integrally connected with the second support plate, which is rotatably integrated. Both second side edges are provided with notches, and the second support plate connected to the second side edges and the inner edge of the notches form a rotatable integral connection.

2. The paper packaging box for electrical components according to claim 1, characterized in that: A storage chamber is formed between the top plate, bottom plate, and side plate of the support block and the side plate of the box.

3. The paper packaging box for electrical components according to claim 2, characterized in that: The top plate of the support block is provided with a first through hole.

4. The paper packaging box for electrical components according to claim 1, characterized in that: A second through hole is provided on the first support plate or between the first support plate and the side plate of the box.

5. The paper packaging box for electrical components according to claim 1, characterized in that: The second connecting hole is arranged on the side plate and bottom plate of the support block.

6. The paper packaging box for electrical components according to claim 1, characterized in that: The device includes a shock-absorbing pad embedded in the bottom of the inner cavity of the box. The shock-absorbing pad includes a bottom pad plate and side baffles arranged around the upper part of the bottom pad plate. A slot is formed between the bottom pad plate and the side baffles to fit into the lower part of the packaged product. The side baffles and the bottom pad plate are integrally connected. The shock-absorbing pad is formed by cutting and folding sponge or foam board. The bottom pad plate is formed in the middle of the sponge board, and the side baffles are formed around the perimeter of the sponge board. The side baffles and the bottom pad plate are cut and processed into a rotating connection part.

7. The paper packaging box for electrical components according to claim 1, characterized in that: The four side panels of the box are integrally connected to form a strip structure. The two side panels at the farthest ends of the strip structure are bonded together by an inner lining plate integrally connected to one of the side panels. The bottom plate of the box is formed by four plates integrally connected to the lower ends of the four side panels and then fastened together.

8. The paper packaging box for electrical components according to claim 1, characterized in that: The other end of the top cover is rotatably connected to a tongue and also has a lock hole. The upper end of the second side plate of the box is rotatably connected to a lock tongue that engages with the lock hole for locking.

Images