Motor stator coil holder circuit board connecting structure and electronic oil pump

Abstract

The utility model provides a motor stator coil holder circuit board connection structure and an electronic oil pump, and belongs to the technical field of automobile motors, and the motor stator coil holder circuit board connection structure comprises a motor stator coil holder which is provided with a clamping head, the clamping head is provided with a clamping recess, and the clamping head is an elastic member; the circuit board is provided with a clamping port, the circuit board can be clamped with the clamping head of the motor stator coil holder through the clamping port, and the inner circumference of the clamping port is larger than or equal to the outer circumference of the clamping recess; and the clamping port is positioned in the clamping recess when being clamped with the clamping head. The motor stator coil holder has the beneficial effects that the circuit board can be fixed on the motor stator coil holder by clamping the clamping port and the clamping head, so that the connection between the circuit board and the motor stator coil holder is simplified, the disassembly is convenient, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile motor belongs to the technical field of automobile motor, and relates to a motor stator line frame circuit board connecting structure and electronic oil pump. BACKGROUND

[0002] At present, the connection between the motor stator line frame and the circuit board generally adopts traditional bolt fixing or welding and other complex processes.

[0003] For example, a utility model patent with the application number CN202223468569.X provides a printed circuit board assembly PCBA of an oil pump motor, which comprises a circuit board substrate and electronic elements arranged on the circuit board substrate. A plurality of PIN needle plate holes, a plurality of wire terminal plate holes and a plurality of hot riveting holes are formed on the circuit board substrate. The plurality of PIN needle plate holes are arranged in parallel at the edge of the circuit board substrate, and the arrangement direction of the PIN needle plate holes is parallel to the tangential direction of the circuit board substrate. The PIN needle plate holes are used for inserting PIN needles, so that the PCBA is fixedly connected with the PIN needles. During use, the PIN needles are electrically connected with the client. The arrangement direction of the PIN needle plate holes is the direction of a straight line formed by one row of PIN needle plate holes. The plurality of wire terminal plate holes are distributed along the circumference of the circuit board substrate. The wire terminal plate holes are circular rectangular in shape, and the length direction is along the radial direction of the circuit board substrate. The wire terminal plate holes are used for inserting wire terminals. The wire terminals are located on the stator assembly of the oil pump motor, so that the PCBA is electrically connected with the stator assembly. The plurality of hot riveting holes are distributed along the circumference of the circuit board substrate. The plurality of hot riveting holes are used for fixedly connecting with the hot riveting columns on the mounting surface through hot riveting during assembly.

[0004] In summary, in some existing technical solutions, the connection between the PCBA circuit board and the stator is fixed by using bolts, welding or hot riveting. There are problems such as high cost and inconvenience of disassembly, and there is a large room for improvement. SUMMARY

[0005] The utility model aims at the above problems existing in the prior art and provides a motor stator line frame circuit board connecting structure and an electronic oil pump.

[0006] The utility model can be realized by the following technical scheme: a motor stator line frame circuit board connecting structure, comprising: a motor stator line frame provided with a clamping joint, the clamping joint has a clamping recess, and the clamping joint is an elastic member; a circuit board having a clamping port, the circuit board can be clamped with the clamping joint of the motor stator line frame through the clamping port, and the inner circumference of the clamping port is greater than or equal to the outer circumference of the clamping recess; and the clamping port and the clamping joint are clamped in the clamping recess.

[0007] In the motor stator bobbin circuit board connecting structure, the clamping joint comprises a clamping seat and at least two clamping arms, the clamping arms are connected with the clamping seat, a deformation space is formed between the clamping arms, the clamping arms have clamping portions, the clamping portions are located at one end of the clamping arms away from the clamping seat, the clamping recesses are located between the clamping arms and the clamping seat, the outer periphery of the clamping portion is greater than the inner periphery of the clamping hole, and each clamping arm can be bent towards the deformation space so that the outer periphery of the clamping portion is less than or equal to the inner periphery of the clamping hole.

[0008] In the motor stator bobbin circuit board connecting structure, the clamping portion has a first sliding portion, the first sliding portion is located at one end of the clamping portion away from the clamping seat, and the outer periphery of the first sliding portion gradually increases when approaching the clamping arm.

[0009] In the motor stator bobbin circuit board connecting structure, the clamping arm has a second sliding portion, the second sliding portion is located at one end of the clamping portion close to the clamping recess, and the outer periphery of the second sliding portion gradually decreases when approaching the clamping arm.

[0010] In the motor stator bobbin circuit board connecting structure, the clamping seat has a first positioning surface, and the circuit board further has a second positioning surface, the first positioning surface and the second positioning surface are in contact when the clamping hole is clamped with the clamping joint.

[0011] In the motor stator bobbin circuit board connecting structure, the motor stator bobbin further comprises a positioning seat, the positioning seat has a third positioning surface, the circuit board has a fourth positioning surface, and the third positioning surface and the fourth positioning surface are in contact when the clamping hole is clamped with the clamping joint.

[0012] In the motor stator bobbin circuit board connecting structure, the inner periphery of the clamping hole is greater than the outer periphery of the clamping recess, and a movement gap is formed between the clamping hole and the clamping recess.

[0013] The electronic oil pump further comprises the motor stator bobbin circuit board connecting structure, and further comprises a pump body, and the motor stator bobbin and the circuit board are located in the pump body.

[0014] Compared with the prior art, the motor stator bobbin circuit board connecting structure has the following beneficial effects:

[0015] 1. The circuit board can be clamped with the clamping joint through the clamping hole, so as to be fixed on the motor stator bobbin, the connection between the circuit board and the motor stator bobbin is simplified, the disassembly is convenient, and the cost is saved.

[0016] 2. Under the action of external force, the clamping arm can be elastically deformed towards the deformation space, so that the outer circumference of the clamping part is less than or equal to the inner circumference of the clamping hole, and the clamping arm restores to the state before deformation when the clamping head can pass through the clamping hole.

[0017] 3. The clamping hole and the clamping recess are formed with a moving gap, so that the stress between the circuit board and the motor stator bobbin is reduced, and the components on the circuit board are not easy to loosen. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the circuit board and the motor stator bobbin after assembly of the utility model.

[0019] Figure 2 is a top view of Figure 1

[0020] Figure 3 is a sectional view of Figure 2 A-A perspective.

[0021] Figure 4 is a schematic view of the circuit board and the motor stator bobbin before assembly of the utility model.

[0022] Figure 5 is a top view of Figure 4

[0023] Figure 6 is a sectional view of Figure 5 B-B perspective.

[0024] Figure 7 is an enlarged view of Figure 6 C part.

[0025] Figure 8 is a top view of the electronic oil pump of the utility model.

[0026] Figure 9 is a sectional view of Figure 8 D-D perspective.

[0027] In the drawing, 100, motor stator bobbin; 110, clamping head; 111, clamping recess; 120, clamping seat; 130, clamping arm; 131, clamping part; 132, first sliding part; 133, second sliding part; 134, first positioning surface; 140, positioning seat; 141, third positioning surface; 200, circuit board; 210, clamping hole; 220, second positioning surface; 230, fourth positioning surface; 300, deformation space; 400, moving gap; 500, pump body. DETAILED DESCRIPTION

[0028] ​​The technical solutions of the utility model will be further described below in combination with the embodiments of the utility model and the accompanying drawings, but the utility model is not limited to these embodiments.

[0029] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, used in the embodiments of the utility model are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, the description of "first", "second", "one" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0031] In the utility model, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] In addition, the technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0033] The specific embodiments described herein are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

[0034] As Figures 1-7 shown, a motor stator bobbin circuit board connecting structure, comprising: motor stator bobbin 100 and circuit board 200.

[0035] The motor stator frame 100 is provided with a snap-fit ​​connector 110, which has a snap-fit ​​recess 111 and is an elastic element.

[0036] The circuit board 200 has a card interface 210, which can be engaged with the card connector 110 of the motor stator frame 100. The inner circumference of the card interface 210 is greater than or equal to the outer circumference of the card recess 111.

[0037] When the card interface 210 is engaged with the card connector 110, it is located within the card engagement recess 111.

[0038] In this embodiment, the circuit board 200 can be fixed to the motor stator frame 100 by snapping it into the card connector 110 via the card interface 210, which simplifies the connection between the circuit board 200 and the motor stator frame 100, making disassembly convenient and saving costs.

[0039] like Figures 1-7 As shown, based on the above embodiment, the snap-fit ​​connector 110 includes a snap-fit ​​base 120 and at least two snap-fit ​​arms 130. Each snap-fit ​​arm 130 is connected to the snap-fit ​​base 120, and a deformation space 300 is formed between each snap-fit ​​arm 130. Each snap-fit ​​arm 130 has a snap-fit ​​portion 131, which is located at the end of the snap-fit ​​arm 130 away from the snap-fit ​​base 120. The snap-fit ​​recess 111 is located between the snap-fit ​​arm 130 and the snap-fit ​​base 120. The outer periphery of the snap-fit ​​portion 131 is larger than the inner periphery of the snap-fit ​​interface 210. Each snap-fit ​​arm 130 can be bent toward the deformation space 300, so that the outer periphery of the snap-fit ​​portion 131 is smaller than or equal to the inner periphery of the snap-fit ​​interface 210.

[0040] In this embodiment, under the action of external force, the snap-fit ​​arm 130 can undergo elastic deformation toward the deformation space 300, so that the outer periphery of the snap-fit ​​portion 131 is smaller than or equal to the inner periphery of the snap-fit ​​interface 210. When the snap-fit ​​connector 110 can pass through the snap-fit ​​interface 210, the snap-fit ​​arm 130 returns to the state before deformation.

[0041] like Figures 1-7 As shown, based on the above embodiment, the snap-fit ​​portion 131 has a first sliding portion 132, which is located at the end of the snap-fit ​​portion 131 away from the snap-fit ​​base 120, and the outer periphery of the first sliding portion 132 gradually increases as it approaches the snap-fit ​​arm 130.

[0042] In this embodiment, the outer periphery of the first sliding portion 132 gradually increases as it approaches the card arm 130, so that the end of the card portion 131 away from the card seat 120 can be guided by the first sliding portion 132 to extend into the card interface 210.

[0043] like Figures 1-7 As shown, based on the above embodiment, the snap-fit ​​arm 130 has a second sliding portion 133, which is located at one end of the snap-fit ​​portion 131 near the snap-fit ​​recess 111, and the outer periphery of the second sliding portion 133 gradually decreases as it approaches the snap-fit ​​arm 130.

[0044] In this embodiment, the outer periphery of the second sliding part 133 gradually decreases as it approaches the card arm 130, so that when the card connector 110 needs to be removed, the card connector 110 can be guided and moved out of the card interface 210 through the second sliding part 133.

[0045] like Figures 1-7 As shown, based on the above embodiment, the card holder 120 has a first positioning surface 134, and the circuit board 200 also has a second positioning surface 220. When the card interface 210 is engaged with the card connector 110, the first positioning surface 134 contacts the second positioning surface 220.

[0046] In this embodiment, when the card interface 210 and the card connector 110 are engaged, the first positioning surface 134 contacts the second positioning surface 220, thereby positioning the circuit board 200 and the motor stator frame 100.

[0047] like Figures 1-7 As shown, based on the above embodiment, the motor stator frame 100 is further provided with a positioning seat 140, the positioning seat 140 having a third positioning surface 141, and the circuit board 200 having a fourth positioning surface 230. When the card interface 210 is engaged with the card connector 110, the third positioning surface 141 contacts the fourth positioning surface 230.

[0048] In this embodiment, when the card interface 210 and the card connector 110 are engaged, the third positioning surface 141 and the fourth positioning surface 230 come into contact, thereby positioning the circuit board 200 and the motor stator frame 100.

[0049] like Figures 1-7 As shown, based on the above embodiment, the inner periphery of the card interface 210 is larger than the outer periphery of the card recess 111, and a moving gap 400 is formed between the card interface 210 and the card recess 111.

[0050] In this embodiment, a moving gap 400 is formed in the card interface 210 and the card recess 111, thereby reducing the stress between the circuit board 200 and the motor stator frame 100, making the components on the circuit board 200 less likely to loosen.

[0051] like Figures 1-9As shown in the figure, an electronic oil pump comprises the motor stator bobbin circuit board connecting structure, further comprises: a pump body 500, the motor stator bobbin 100 and the circuit board 200 are located in the pump body 500.

Claims

1. A connection structure for a motor stator frame circuit board, characterized in that, include: Motor stator wire frame, which is provided with a snap-fit ​​connector, the snap-fit ​​connector having a snap-fit ​​recess, the snap-fit ​​connector being an elastic element; A circuit board having a card interface, the circuit board being able to be snapped into the card connector of the motor stator frame via the card interface, wherein the inner circumference of the card interface is greater than or equal to the outer circumference of the card connector recess; When the card interface is engaged with the card connector, it is located within the card connector recess.

2. The motor stator frame circuit board connection structure as described in claim 1, characterized in that: The snap-fit ​​connector includes a snap-fit ​​base and at least two snap-fit ​​arms. Each snap-fit ​​arm is connected to the snap-fit ​​base, and a deformation space is formed between each snap-fit ​​arm. Each snap-fit ​​arm has a snap-fit ​​portion located at the end of the snap-fit ​​arm away from the snap-fit ​​base. A snap-fit ​​recess is located between the snap-fit ​​arm and the snap-fit ​​base. The outer perimeter of the snap-fit ​​portion is larger than the inner perimeter of the snap-fit ​​interface. Each snap-fit ​​arm can be bent toward the deformation space so that the outer perimeter of the snap-fit ​​portion is smaller than or equal to the inner perimeter of the snap-fit ​​interface.

3. The motor stator frame circuit board connection structure as described in claim 2, characterized in that: The snap-fit ​​portion has a first sliding portion, which is located at the end of the snap-fit ​​portion away from the snap-fit ​​base, and the outer periphery of the first sliding portion gradually increases as it approaches the snap-fit ​​arm.

4. The motor stator frame circuit board connection structure as described in claim 2, characterized in that: The snap-fit ​​arm has a second sliding portion, which is located at one end of the snap-fit ​​portion near the snap-fit ​​recess. The outer periphery of the second sliding portion gradually decreases as it approaches the snap-fit ​​arm.

5. The motor stator frame circuit board connection structure as described in claim 1, characterized in that: The card connector has a first positioning surface, and the circuit board also has a second positioning surface. When the card interface is engaged with the card connector, the first positioning surface and the second positioning surface are in contact.

6. The motor stator frame circuit board connection structure as described in claim 1, characterized in that: The motor stator frame is also provided with a positioning seat, the positioning seat has a third positioning surface, and the circuit board has a fourth positioning surface. When the card interface is engaged with the card connector, the third positioning surface is in contact with the fourth positioning surface.

7. The motor stator frame circuit board connection structure as described in claim 1, characterized in that: The inner circumference of the card interface is larger than the outer circumference of the card recess, and a movable gap is formed between the card interface and the card recess.

8. An electronic oil pump, characterized in that, The device includes a motor stator wire frame circuit board connection structure as described in any one of claims 1-7, and further includes a pump body, wherein the motor stator wire frame and the circuit board are both located within the pump body.

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