Electric bicycle integrated down tube motor seat and its processing technology

Abstract

The present invention discloses an integrated lower tube motor seat for an electric bicycle, comprising a lower tube body, a middle tube connecting portion formed on the upper portion of the lower tube body for connecting to the middle tube, a battery mounting portion provided on the outer side of the lower tube body for mounting a battery on the outer side of the lower tube body, a seat body formed on the bottom of the lower tube body, a mounting cavity with a downward opening provided inside the seat body for mounting a motor, and threading holes provided through the surface of the seat body, the threading holes being connected to the mounting cavity. The beneficial effects are as follows: the middle tube connecting portion, the lower tube body, and the seat body are integrally formed, which simplifies the process, can reduce subsequent processing errors, and save costs; the battery can be mounted on the outer side of the lower tube body through the battery mounting portion, and the battery is electrically connected to the motor inside the seat body through the threading holes, which facilitates the disassembly and assembly of the battery; by mounting the battery on the outer side of the lower tube body, the integrity of the lower tube body can be ensured, thereby improving the overall strength and making it strong and durable.

Description

Technical Field

[0001] The present invention relates to the technical field of electric bicycle components, and in particular to an integrated downtube motor seat for an electric bicycle and a processing technology thereof. Background Art

[0002] The downtube and motor mount are two critical components of electric bicycles. To improve their production quality, simplify processes, and reduce production costs, the downtube and motor mount are often molded as a single piece. However, current integrated downtube motor mounts place the battery inside the downtube, requiring a window on the outside. This makes battery removal difficult and compromises the overall strength of the downtube, resulting in unsatisfactory performance. Furthermore, current processing techniques for integrated downtube motor mounts fail to reduce overall wall thickness while maintaining overall strength, resulting in material waste. Summary of the Invention

[0003] The purpose of the present invention is to provide an integrated downtube motor mount for an electric bicycle and a processing technology thereof in order to solve the above-mentioned problems, which will be described in detail below.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The electric bicycle integrated downtube motor seat provided by the present invention includes a downtube body, a middle tube connecting portion is formed on the upper part of the downtube body for connecting to the middle tube, a battery mounting portion is provided on the outer side of the downtube body for mounting the battery on the outer side of the downtube body, a seat body is formed on the bottom of the downtube body, a mounting cavity with a downward opening is provided inside the seat body for mounting the motor, a threading hole is provided through the surface of the seat body, the threading hole is communicated with the mounting cavity for electrically connecting the battery and the motor.

[0006] By adopting the above-mentioned integrated downtube motor seat of the electric bicycle, the battery can be installed on the outside of the downtube body through the battery mounting seat, and the battery is electrically connected to the motor installed inside the mounting cavity in conjunction with the threading hole. The battery is installed on the outside of the downtube body, which is convenient for disassembly and assembly of the battery, while ensuring the integrity of the downtube body, and ensuring the overall strength, firmness and durability; the seat body, the downtube body and the middle tube connecting part are integrally formed, the process is simplified, and the processing errors of subsequent processes can be reduced, saving costs.

[0007] Preferably, the battery mounting portion includes a connecting threaded hole and a positioning groove, the positioning groove is close to the connection between the lower tube body and the base body, and is used to position the bottom end of the battery, and the connecting threaded hole is close to the middle tube connection portion, and is used to cooperate with the screws to fix the battery.

[0008] Preferably, a groove is provided on the surface of the seat body, the groove is correspondingly connected to the threading hole, and a threaded hole is provided inside the groove.

[0009] Preferably, a through hole is provided through the outer side of the seat body, and a plurality of through holes are provided and correspond to the connection holes on the outer side of the motor; wherein the through holes are countersunk structures.

[0010] Preferably, an avoidance cutout is provided on an edge of one side of the seat body close to the port of the installation cavity, and the shape of the avoidance cutout matches the surface shape of the motor.

[0011] Preferably, a waist-shaped groove and a mounting hole are provided on the side of the seat away from the lower tube body.

[0012] The processing technology of the integrated down tube motor mount of an electric bicycle includes the following steps:

[0013] a. Perform tube shrinkage treatment on one end of the raw material tube to reduce the outer diameter of the end;

[0014] b. performing annealing and saponification treatments on the pipe obtained in step a in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0015] c. Perform a tube drawing and shrinking process on the tube obtained in step b, so that the diameter of the portion of the tube near the small diameter end of the tube in step a becomes smaller and longer, forming the base of the connection between the lower tube body and the middle tube, and the unchanged portion becomes the base of the base body;

[0016] d. Perform a secondary pipe drawing and shrinking process on the pipe fitting obtained in step c, so that the diameter of the base of the lower pipe body and the middle pipe connection portion becomes smaller and the overall length becomes longer;

[0017] e. performing annealing and saponification treatments on the pipe obtained in step d in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0018] f. Perform three pipe-drawing and pipe-shrinking steps on the pipe fitting obtained in step e, so that the diameter of the base of the lower pipe body and the middle pipe connection portion becomes smaller and the overall length becomes longer;

[0019] g. Performing four pipe-drawing and pipe-shrinking steps on the pipe obtained in step f, so that the diameter of the base of the lower pipe body and the middle pipe connection portion becomes smaller and the overall length becomes longer;

[0020] h. Perform a cutting process on the pipe obtained in step g, and cut off the small diameter end obtained in step a;

[0021] i. performing annealing and saponification treatments on the pipe obtained in step h in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0022] j. Performing an intermediate tube shrinking process on the tube obtained in step i, so that the tube is sequentially formed into a middle tube connecting portion, a lower tube body and a base body;

[0023] k. Perform a tail end shrinking process on the tube body obtained in step j to achieve trimming of the base body;

[0024] l. Performing annealing and saponification treatments on the pipe obtained in step k in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0025] m. Performing a pipe expansion process on the pipe obtained in step 1 to expand the port of the base of the middle pipe connecting portion;

[0026] n. Perform an elliptical pressing process on the pipe obtained in step m, so that the cross section of the entire pipe body has an elliptical structure;

[0027] o. Perform a displacement process on the pipe fitting obtained in step n to flatten the base of the middle pipe connecting portion and the base of the seat body;

[0028] p. performing annealing and saponification treatments on the pipe obtained in step o in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0029] q. Perform a bending process on the pipe obtained in step p to achieve bending of the base body;

[0030] r. Perform a secondary bending process on the pipe obtained in step q to achieve bending of the base body;

[0031] s. Perform three bending processes on the pipe obtained in step r to achieve bending of the base body;

[0032] t. Performing four secondary bending processes on the pipe obtained in step s to achieve bending of the entire pipe;

[0033] u. Performing a shaping process on the pipe obtained in step t to realize the ejection of the convex point shape of the entire pipe;

[0034] v. performing annealing and saponification treatments on the pipe obtained in step u in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0035] w. Performing a water sealing process on the pipe obtained in step v to achieve flattening of the base body;

[0036] x. Performing a hydroforming process on the pipe fitting obtained in step w to achieve overall forming of the pipe fitting;

[0037] y. Perform CNC machining on the pipe fitting obtained in step x to obtain the final product.

[0038] Preferably, the heating temperature during the annealing process is 400-460° C., the heating time is 0.8-1.2 hours, and the temperature is naturally lowered after heating.

[0039] Preferably, the saponification treatment is:

[0040] s1. Place the pipe fittings in a normal temperature water tank with degreaser for 8-16 minutes;

[0041] s2. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes;

[0042] s3. Place the pipe fittings in a water tank with a coating agent at a temperature of 80-90 degrees for 2-4 minutes;

[0043] s4. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes;

[0044] s5. Place the pipe fittings in a water tank with lubricant and a temperature of 80-90 degrees for 2-4 minutes.

[0045] Preferably, steps s2 and s3 are both performed twice.

[0046] The beneficial effects are: 1. The middle tube connecting part, the lower tube body and the seat body are integrally formed, which simplifies the process, can reduce the subsequent process errors and save costs;

[0047] 2. The battery can be installed on the outside of the lower tube through the battery installation part, and the battery is electrically connected to the motor inside the base through the threading hole, making it easy to disassemble and install the battery;

[0048] 3. By installing the battery on the outside of the lower tube, the integrity of the lower tube can be ensured, thereby improving the overall strength and durability;

[0049] 4. The multiple pipe drawing and shrinking processes can ensure the strength of the pipe while reducing the thickness of the pipe, thereby ensuring the overall strength and durability;

[0050] 5. During the whole process, annealing and saponification treatment are carried out regularly. The hardness of the pipe fittings is adjusted by annealing treatment to ensure smooth molding of the pipe fittings and ensure molding quality. A lubricating film is formed on the surface of the pipe fittings by saponification treatment to prevent inner core scratches and mold bumps, thereby ensuring the molding quality of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0053] Figure 2It is a schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0054] Figure 3 It is a front view of the present invention;

[0055] Figure 4 is a schematic structural diagram of the pipe fitting obtained in step a;

[0056] Figure 5 is a schematic structural diagram of the pipe fitting obtained in step c;

[0057] Figure 6 is a schematic structural diagram of the pipe fitting obtained in step d;

[0058] Figure 7 is a schematic structural diagram of the pipe fitting obtained in step f;

[0059] Figure 8 is a schematic structural diagram of the pipe fitting obtained in step g;

[0060] Figure 9 is a schematic structural diagram of the pipe fitting obtained in step h;

[0061] Figure 10 is a schematic structural diagram of the pipe fitting obtained in step j;

[0062] Figure 11 is the structural diagram of the pipe fitting obtained in step k;

[0063] Figure 12 is a schematic structural diagram of the pipe fitting obtained in step m;

[0064] Figure 13 is a schematic structural diagram of the pipe fitting obtained in step n;

[0065] Figure 14 is a schematic structural diagram of the pipe fitting obtained in step o;

[0066] Figure 15 is a schematic structural diagram of the pipe fitting obtained in step q;

[0067] Figure 16 is a schematic structural diagram of the pipe fitting obtained in step r;

[0068] Figure 17 is a schematic structural diagram of the pipe fitting obtained in step s;

[0069] Figure 18 is a schematic structural diagram of the pipe fitting obtained in step t;

[0070] Figure 19 is a schematic structural diagram of the pipe fitting obtained in step u;

[0071] Figure 20 is a schematic structural diagram of the pipe fitting obtained in step w;

[0072] Figure 21 It is a schematic diagram of the structure of the pipe fitting obtained in step x.

[0073] The following are the descriptions of the reference numerals:

[0074] 1. Lower tube body; 2. Battery mounting part; 201. Connecting threaded hole; 202. Positioning groove; 3. Base body; 301. Threading hole; 302. Groove; 303. Waist-shaped groove; 304. Mounting hole; 305. Through hole; 306. Mounting cavity; 307. Avoidance cut; 4. Middle tube connection part. DETAILED DESCRIPTION

[0075] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0076] See also Figure 1-Figure 3 As shown, the present invention provides an integrated downtube motor mount for an electric bicycle, comprising a downtube body 1, a middle tube connecting portion 4 formed on the upper portion of the downtube body 1 for connecting to the middle tube, a battery mounting portion 2 provided on the outer side of the downtube body 1 for mounting the battery on the outer side of the downtube body 1, further, the battery mounting portion 2 comprises a connecting threaded hole 201 and a positioning groove 202, the positioning groove 202 being close to the connection between the downtube body 1 and the mount body 3 for positioning the bottom end of the battery, the connecting threaded hole 201 being close to the middle tube connecting portion 4 for cooperating with screws to secure the battery, and the battery can be positioned and mounted on the outer side of the downtube body 1 through the positioning groove 202 and the connecting threaded hole 201;

[0077] A seat body 3 is formed at the bottom of the lower tube body 1, and a mounting cavity 306 with an opening facing downward is provided inside the seat body 3 for installing the motor. A threading hole 301 is provided through the surface of the seat body 3, and the threading hole 301 is connected to the mounting cavity 306 for electrically connecting the battery and the motor. Preferably, a groove 302 is provided on the surface of the seat body 3, and the groove 302 is correspondingly connected to the threading hole 301. A threaded hole is provided inside the groove 302, and an electrical connection socket can be installed inside the groove 302 through the threaded hole and the screw. The electrical connection socket is connected to the motor through electric wires, and the battery is connected to a plug that plugs into the electrical connection socket through electric wires, which can realize quick electrical connection between the battery and the motor, thereby facilitating the disassembly and assembly of the battery.

[0078] As an optional embodiment, a through hole 305 is provided on the outside of the base body 3. There are multiple through holes 305 corresponding to the connection holes on the outside of the motor. The through holes 305 are countersunk structures. This arrangement makes it easy to fix the motor inside the installation cavity 306 with the help of screws.

[0079] An avoidance cutout 307 is provided on the edge of one side of the seat body 3 near the port of the installation cavity 306. The shape of the avoidance cutout 307 matches the surface shape of the motor. This arrangement can prevent the edge of the seat body 3 near the port of the installation cavity 306 from interfering with the installation of the motor, thereby ensuring the installation accuracy of the motor.

[0080] A waist-shaped groove 303 and a mounting hole 304 are provided on the side of the seat body 3 away from the lower tube body 1. This arrangement facilitates the positioning connection between the seat body 3 and the frame.

[0081] By adopting the above structure, the battery can be installed on the outside of the lower tube body 1 through the battery mounting seat, and the battery can be electrically connected to the motor installed inside the mounting cavity 306 in conjunction with the threading hole 301. The battery is installed on the outside of the lower tube body 1, which is convenient for disassembly and assembly of the battery, while ensuring the integrity of the lower tube body 1, and ensuring the overall strength, firmness and durability; the seat body 3, the lower tube body 1 and the middle tube connecting part 4 are integrally formed, the process is simplified, and the subsequent processing errors can be reduced, saving costs.

[0082] The processing technology of the integrated down tube motor mount of an electric bicycle includes the following steps:

[0083] a. Reduce the outer diameter of one end of the raw material tube. Specifically, use a rotary tube reducing machine to reduce the port diameter to block the iron core for the subsequent tube reducing process. Figure 4 The structure shown;

[0084] b. performing annealing and saponification treatments on the pipe obtained in step a in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0085] c. Perform a tube drawing and shrinking process on the tube obtained in step b, so that the diameter of the part near the small diameter end of the tube obtained in step a becomes smaller and longer, forming the base of the lower tube body 1 and the middle tube connecting part 4. The unchanged part is the base of the seat body 3. Specifically, use an outer mold with a circular inner and outer diameter and an oblique mouth, and an iron core, put the tube obtained in step b on the iron core, and change the outer diameter of the tube by drawing the tube from the outer mold, so that the outer diameter of the base of the lower tube body 1 and the middle tube connecting part 4 is Shrink tube to Get as Figure 5 The structure shown;

[0086] d. Perform a secondary tube drawing and shrinking process on the pipe fitting obtained in step c to reduce the diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4 and lengthen the whole. Specifically, use an outer mold with a circular inner and outer diameter and an oblique mouth, and an iron core with a step drop, put the pipe fitting obtained in step c on the iron core, and change the outer diameter and thickness of the pipe fitting by drawing the tube from the outer mold, so that the outer diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4 is reduced. Shrink tube to The thickness of T3.8mm is reduced to T2.8mm, and the result is as follows Figure 6 The structure shown;

[0087] e. performing annealing and saponification treatments on the pipe obtained in step d in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0088] f. The pipe fitting obtained in step e is subjected to three pipe drawing and shrinking processes to reduce the diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4 and to lengthen the whole. Specifically, an outer mold with a circular inner and outer diameter and an oblique mouth and an iron core with a step height difference are used, and the pipe fitting obtained in step e is put on the iron core. The outer diameter and thickness of the pipe fitting are changed by drawing the pipe from the outer mold to achieve the outer diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4. Shrink tube to The thickness T2.8mm is thinned into two thicknesses T2.4-T2.0mm, and the following is obtained: Figure 7 The structure shown;

[0089] g. The pipe fitting obtained in step f is subjected to four pipe drawing and shrinking processes to reduce the diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4 and to lengthen the whole. Specifically, an outer die with a circular inner and outer diameter and an oblique opening and an iron core with a step height difference are used. The pipe fitting obtained in step f is put on the iron core, and the outer diameter and thickness of the pipe fitting are changed by drawing the pipe from the outer die. The outer diameter of the base of the lower pipe body 1 and the middle pipe connecting portion 4 is reduced. Shrink tube to The thickness T2.4-T2.0mm is thinned into two thicknesses T2.1-T1.55mm, and the following is obtained: Figure 8 The structure shown;

[0090] h. Cut the pipe obtained in step g and cut off the small diameter end obtained in step a to obtain the pipe as shown in FIG. Figure 9 The structure shown;

[0091] i. performing annealing and saponification treatments on the pipe obtained in step h in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0092] j. Perform an intermediate tube shrinking process on the tube obtained in step i, so that the tube is formed into the base of the middle tube connecting part 4, the lower tube body 1 and the base body 3 in sequence. Specifically, a TP tube shrinking machine is used to change the size of the tube diameter. The mold rotates inside the machine. The tube obtained in step i is first placed in the machine mold. The insert inclined top mold inside the machine is used to rotate and shrink the mold to change the intermediate tube diameter, and the tube is obtained as shown in the figure. Figure 10 The structure shown;

[0093] k. Perform the tail end shrinking process on the tube body obtained in step j to achieve the trimming of the base body 3. Specifically, use the TP shrinking machine to change the size of the tube diameter. The mold rotates inside the machine and slowly pushes the tube obtained in step j into it. The diameter of the tube is changed by rotating and extruding. Figure 11 The structure shown;

[0094] l. Performing annealing and saponification treatments on the pipe obtained in step k in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0095] m. Perform the pipe expansion process on the pipe obtained in step 1 to expand the port of the base of the middle pipe connecting portion 4. Specifically, the upper and lower molds wrap the pipe obtained in step 1, and the expanded end is inserted into the inner core to expand the pipe. Figure 12 The structure shown;

[0096] n. Perform an elliptical pressing process on the pipe obtained in step m to make the cross section of the pipe body into an elliptical structure. Specifically, the upper and lower molds press the pipe obtained in step m into an elliptical shape. Figure 13 The structure shown;

[0097] o. Perform displacement process on the pipe fitting obtained in step n to realize flattening of the base of the middle pipe connecting part 4 and the base of the seat body 3. Specifically, the upper and lower molds flatten the two ends of the pipe fitting obtained in step n. The inner core needs to be drawn into the two ends to level them. Figure 14 The structure shown;

[0098] p. performing annealing and saponification treatments on the pipe obtained in step o in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0099] q. Perform a bending process on the pipe obtained in step p to achieve bending of the base body 3, and obtain the following Figure 15 The structure shown;

[0100] r. Perform a secondary bending process on the pipe obtained in step q to achieve bending of the base body 3, and obtain Figure 16 The structure shown;

[0101] s. Perform three bending processes on the pipe obtained in step r to achieve bending of the base body 3, and obtain the following Figure 17The structure shown;

[0102] t. Perform four bending steps on the pipe obtained in step s to achieve bending of the entire pipe. Figure 18 The structure shown;

[0103] u. Perform a shaping process on the pipe obtained in step t to realize the ejection of the convex shape of the pipe as a whole. Specifically, the upper and lower molds wrap the pipe obtained in step t, and use the inner core to eject the convex shape of the pipe. Figure 19 The structure shown;

[0104] v. performing annealing and saponification treatments on the pipe obtained in step u in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe;

[0105] w. Perform a water sealing process on the pipe obtained in step v to achieve the flattening of the base body 3. Specifically, the upper and lower molds flatten the tail end and fit the water injection mold to obtain the following Figure 20 The structure shown;

[0106] x. Perform a hydraulic forming process on the pipe fitting obtained in step w to achieve the overall forming of the pipe fitting. Specifically, the upper and lower molds press the pipe fitting obtained in step w together. One end of the mold presses the pipe fitting together, and the other end injects water into the pipe fitting. The internal water pressure makes the pipe fitting fit the mold to achieve accurate size and beautiful appearance. Figure 21 The structure shown;

[0107] y. Perform CNC machining on the pipe fitting obtained in step x to obtain the final product.

[0108] As an optional embodiment, the heating temperature during the annealing process is 400-460° C., the heating time is 0.8-1.2 hours, and the temperature is naturally cooled after heating.

[0109] If the pipe is made of 6061 material, place the pipe in a tempering furnace at a temperature of 400-460℃ for 0.8-1.2 hours. After natural cooling, the hardness of the pipe will be reduced to 0-3 degrees.

[0110] If the pipe is made of 7005 material, place the pipe in a tempering furnace at a temperature of 400-460℃ for 1.3-1.8 hours. After natural cooling, the hardness of the pipe is 6-8 degrees.

[0111] If the pipe is made of 6066 material, place the pipe in a tempering furnace at a temperature of 400-460℃ for 0.8-1.2 hours. After natural cooling, the hardness of the pipe is 3-5 degrees.

[0112] As an optional embodiment, the saponification treatment is:

[0113] s1. Place the pipe fittings in a normal temperature water tank with degreaser for 8-16 minutes;

[0114] s2. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes;

[0115] s3. Place the pipe fittings in a water tank with a coating agent at a temperature of 80-90 degrees for 2-4 minutes;

[0116] s4. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes;

[0117] s5. Place the pipe fittings in a water tank with lubricant and a temperature of 80-90 degrees for 2-4 minutes.

[0118] The operations of steps s2 and s3 are both performed twice. This arrangement can ensure the film-forming effect on the surface of the pipe.

[0119] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An integrated downtube motor mount for an electric bicycle, characterized by: The invention comprises a lower tube body (1), wherein a middle tube connecting portion (4) is formed on the upper portion of the lower tube body (1) for connecting to the middle tube, a battery mounting portion (2) is provided on the outer side of the lower tube body (1) for mounting the battery on the outer side of the lower tube body (1), a seat body (3) is formed on the bottom of the lower tube body (1), a mounting cavity (306) with an opening facing downward is provided inside the seat body (3) for mounting a motor, and a threading hole (301) is provided through the surface of the seat body (3), the threading hole (301) is connected to the mounting cavity (306) for electrically connecting the battery and the motor; The battery mounting portion (2) comprises a connecting threaded hole (201) and a positioning groove (202), wherein the positioning groove (202) is close to the connection between the lower tube body (1) and the base body (3) and is used to position the bottom end of the battery, and the connecting threaded hole (201) is close to the middle tube connecting portion (4) and is used to cooperate with screws to fix the battery; The seat (3) is provided with a groove (302) on its surface, the groove (302) correspondingly connected to the threading hole (301), a threaded hole is provided inside the groove (302), an electrical connection socket is installed inside the groove (302) through the threaded hole and a screw, the electrical connection socket is connected to the motor through an electric wire, and the battery is connected to a plug that plugs into the electrical connection socket through the electric wire, thereby realizing a quick electrical connection between the battery and the motor.

2. The integrated down tube motor mount for an electric bicycle according to claim 1, characterized in that: A through hole (305) is provided on the outside of the seat body (3), and a plurality of through holes (305) are provided and correspond to the connection holes on the outside of the motor; Wherein, the through hole (305) is a countersunk hole structure.

3. The integrated down tube motor mount for an electric bicycle according to claim 2, characterized in that: An avoidance cutout (307) is provided on one side of the seat body (3) near the end of the installation cavity (306), and the shape of the avoidance cutout (307) matches the surface shape of the motor.

4. The integrated downtube motor mount for an electric bicycle according to claim 3, characterized in that: A waist-shaped groove (303) and a mounting hole (304) are provided on the side of the seat body (3) away from the lower tube body (1).

5. The processing technology of the integrated down tube motor mount for electric bicycle according to claim 1 is characterized in that The following steps are involved: a. Perform tube shrinkage treatment on one end of the raw material tube to reduce the outer diameter of the end; b. performing annealing and saponification treatments on the pipe obtained in step a in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; c. Performing a pipe drawing and shrinking process on the pipe obtained in step b, so that the diameter of the portion of the pipe near the small diameter end of step a becomes smaller and longer, forming the base of the lower pipe body (1) and the middle pipe connecting portion (4), and the unchanged portion becomes the base of the seat body (3); d. Performing a secondary pipe drawing and shrinking process on the pipe obtained in step c, so that the diameter of the base of the lower pipe body (1) and the middle pipe connecting portion (4) becomes smaller and the overall length becomes longer; e. performing annealing and saponification treatments on the pipe obtained in step d in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; f. Performing three pipe-drawing and pipe-shrinking steps on the pipe obtained in step e, so that the diameters of the bases of the lower pipe body (1) and the middle pipe connecting portion (4) become smaller and the overall length becomes longer; g. Performing four pipe-drawing and pipe-shrinking processes on the pipe obtained in step f, so that the diameters of the base of the lower pipe body (1) and the middle pipe connecting portion (4) become smaller and the overall length becomes longer; h. Perform a cutting process on the pipe obtained in step g, and cut off the small diameter end obtained in step a; i. performing annealing and saponification treatments on the pipe obtained in step h in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; j. Performing an intermediate tube shrinking process on the tube obtained in step i, so that the tube is sequentially formed into a base of a middle tube connecting portion (4), a lower tube body (1), and a seat body (3); k. Perform a tail end shrinking process on the tube body obtained in step j to achieve trimming of the base body of the seat body (3); l. Performing annealing and saponification treatments on the pipe obtained in step k in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; m. Performing a pipe expansion process on the pipe obtained in step 1 to expand the port of the base of the middle pipe connecting portion (4); n. Perform an elliptical pressing process on the pipe obtained in step m, so that the cross section of the entire pipe body has an elliptical structure; o. Performing a displacement process on the pipe obtained in step n to achieve flattening of the base of the middle pipe connecting portion (4) and the base of the seat body (3); p. performing annealing and saponification treatments on the pipe obtained in step o in sequence to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; q. Perform a bending process on the pipe obtained in step p to achieve bending of the base of the seat body (3); r. Perform a secondary bending process on the pipe obtained in step q to achieve bending of the base of the seat body (3); s. Perform three bending processes on the pipe obtained in step r to achieve bending of the base of the seat body (3); t. Performing four secondary bending processes on the pipe obtained in step s to achieve bending of the entire pipe; u. Performing a shaping process on the pipe obtained in step t to realize the ejection of the convex point shape of the entire pipe; v. performing annealing and saponification treatments on the pipe obtained in step u in order to adjust the hardness of the pipe and form a lubricating film on the surface of the pipe; w. Performing a water sealing process on the pipe obtained in step v to achieve flattening of the base of the seat body (3); x. Performing a hydroforming process on the pipe fitting obtained in step w to achieve overall forming of the pipe fitting; y. Perform CNC machining on the pipe fitting obtained in step x to obtain the final product.

6. The processing technology of the integrated down tube motor mount for an electric bicycle according to claim 5, characterized in that: The heating temperature during the annealing process is 400-460° C., the heating time is 0.8-1.2 hours, and the temperature is naturally lowered after heating.

7. The processing technology for the integrated down tube motor mount for an electric bicycle according to claim 5, characterized in that: Saponification treatment is: s1. Place the pipe fittings in a normal temperature water tank with degreaser for 8-16 minutes; s2. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes; s3. Place the pipe fittings in a water tank with a coating agent at a temperature of 80-90 degrees for 2-4 minutes; s4. Place the pipe fittings in a clean water tank at room temperature for 0.5-1.5 minutes; s5. Place the pipe fittings in a water tank with lubricant and a temperature of 80-90 degrees for 2-4 minutes.

8. The processing technology for the integrated down tube motor mount for an electric bicycle according to claim 7, characterized in that: Steps s2 and s3 are both performed twice.

Images