CN216721055U - Motor end cover and low-voltage wire harness fixing structure - Google Patents
Motor end cover and low-voltage wire harness fixing structure Download PDFInfo
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- CN216721055U CN216721055U CN202123082067.9U CN202123082067U CN216721055U CN 216721055 U CN216721055 U CN 216721055U CN 202123082067 U CN202123082067 U CN 202123082067U CN 216721055 U CN216721055 U CN 216721055U
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Abstract
The utility model relates to a motor end cover and a low-voltage wiring harness fixing structure, wherein a low-voltage plug-in mounting cavity, a wiring harness accommodating cavity and a wire inlet and outlet wiring terminal fixing cavity are arranged on an end cover body, the wire inlet and outlet wiring terminal fixing cavity is hollow inside and is provided with an opening, the opening end of the low-voltage plug-in mounting cavity is positioned on the outer wall of the end cover body, one end of the wiring harness accommodating cavity is communicated with the inside of the low-voltage plug-in mounting cavity, the other end of the wiring harness accommodating cavity is communicated with the inside of the wire inlet and outlet wiring terminal fixing cavity through an output end wiring harness outlet hole, and the inside of the wire inlet and outlet wiring terminal fixing cavity is communicated with the inside of a motor shell through an input end wiring harness inlet hole. The low-voltage wiring harness output end plug-in and the low-voltage wiring harness input end plug-in the motor shell are arranged in the inlet and outlet wiring terminal fixing cavity by utilizing the motor end cover, the two plug-ins are plugged to realize electric signal connection, the wiring harness outlet hole and the wire inlet hole are sealed, and the open end of the inlet and outlet wiring terminal fixing cavity is covered by the pressing plate.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a motor end cover and a low-voltage wire harness fixing structure.
Background
The low-voltage wiring harness of the driving motor for the new energy vehicle is mainly used for connecting a temperature sensor wiring harness for measuring the temperature of a motor winding, a rotary transformer wiring harness for measuring the position of a motor rotor and a Motor Controller (MCU). Motor temperature sensor pencil and motor whirl pencil all arrange inside motor casing generally, and motor controller then arranges outside motor casing, and motor low pressure pencil needs pass motor casing and realizes the connection of the inside and outside low pressure part of motor. Therefore, considering the safety and reliability of the driving motor, the waterproof and dustproof grade (i.e., IP protection) of the low-voltage wire harness of the motor and the accuracy of the connection of the low-voltage wire harness are the key points for designing the low-voltage wire harness of the motor. How to realize better waterproof dustproof and convenient, swift, accurate connection of automobile-used driving motor low pressure pencil is the core of new forms of energy automobile-used driving motor low pressure pencil technique.
The low-voltage wire harnesses of the motor at home and abroad are mainly designed in a segmented structure, namely the low-voltage wire harnesses of the motor are disconnected with the wire harness of the temperature sensor and the rotary transformer wire harness and are spliced through PIN PINs; the integrated special jar connector that wears of motor low pressure pencil tip realizes passing the sealed protection of motor casing and being connected with the motor controller. In order to prevent water from entering the motor along the wiring harness, the requirement is also provided for the independent sealing performance of the low-voltage plug-in unit outside the motor, so that the research and development cost of the waterproof design is higher, and the popularization and the application of the motor project are not facilitated. The inventor changes the conventional research and development idea, does not independently provide requirements for the sealing performance of the low-voltage plug-in unit outside the motor shell, but solves the waterproof sealing of the low-voltage wiring harness inlet and outlet through the structural adjustment of the end cover of the motor, and further solves the fixation of the low-voltage wiring harness.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a motor end cover which can fix wire inlet and outlet connecting terminals of a low-voltage wire harness in a motor shell and play a role in waterproof sealing of the low-voltage wire harness in and out of the motor, and the motor end cover is realized by adopting the following technical scheme:
the utility model provides a motor end cover, includes the end cover body, sets up low pressure plug-in components installation cavity and business turn over line binding post fixed cavity on the end cover body, business turn over line binding post fixed cavity is inside cavity and one side open structure, and the open end in low pressure plug-in components installation cavity is located end cover body outer wall, and the inside of low pressure plug-in components installation cavity is link up through output pencil wire hole with the inside link up of business turn over line binding post fixed cavity, and the inside of business turn over line binding post fixed cavity is passed through input pencil wire hole and motor casing.
Further, a wiring harness accommodating cavity is further formed between the low-voltage plug-in mounting cavity and the incoming and outgoing line wiring terminal fixing cavity, one end of the wiring harness accommodating cavity is communicated with the inside of the low-voltage plug-in mounting cavity, and the other end of the wiring harness accommodating cavity is communicated with the inside of the incoming and outgoing line wiring terminal fixing cavity through an output end wiring harness outlet hole.
Furthermore, two crossed inclined planes are formed in the fixing cavity of the wire inlet and outlet wiring terminal close to the inner wall of the end cover body, and an output end wire harness wire outlet hole and an input end wire harness wire inlet hole are respectively formed in the two inclined planes.
Furthermore, a fixing hole is formed in the outer wall of the opening end of the inlet and outlet wiring terminal fixing cavity.
Further, the end cover body comprises a first connecting surface and a second connecting surface which are perpendicular to each other, the first connecting surface and the second connecting surface are connected to form an L-shaped structure, the open end of the low-voltage plug-in mounting cavity is arranged on the first connecting surface, and the low-voltage plug-in mounting cavity and the inlet and outlet wire connecting terminal fixing cavity are arranged on the same inner wall of the second connecting surface in a laminating mode.
On the basis of disclosing the motor end cover structure, the motor end cover is utilized to fix the low-voltage wiring harness inlet and outlet wiring terminal inside the motor shell, so that the low-voltage wiring harness wiring terminal is prevented from being disconnected due to overlarge vibration of the motor during working, therefore, the utility model further discloses a low-voltage wiring harness fixing structure, which is realized by adopting the following technical scheme:
the utility model provides a low pressure pencil fixed knot constructs, including the motor end cover that the aforesaid given, low pressure pencil output plug-in components, low pressure pencil input plug-in components and clamp plate, business turn over line binding post fixed cavity is arranged in to low pressure pencil output plug-in components and low pressure pencil input plug-in components, and two plug-in components realize signal of telecommunication connection to inserting, the output pencil that is drawn forth by low pressure pencil output plug-in components is drawn forth from output pencil wire hole, the input pencil that is drawn forth by low pressure pencil input plug-in components is drawn forth from input pencil wire hole, output pencil wire hole and input pencil wire hole department set up sealing device respectively, the open end in business turn over line binding post fixed cavity is covered with the clamp plate.
Furthermore, a sealing device is arranged between the pressing plate and the opening end of the inlet and outlet wire connecting terminal fixing cavity.
Furthermore, the pressing plate is detachably arranged at the opening end of the fixing cavity of the incoming and outgoing line wiring terminal by adopting a fastener.
The waterproof sealing of the low-voltage wire harness inlet and outlet wire is realized by adjusting the structure of the motor end cover, the cavity for accommodating the low-voltage wire harness wiring terminal inside the motor shell is arranged on the inner wall of the end cover, and the inlet and outlet wire connecting terminal of the low-voltage wire harness inside the motor shell is fixed by utilizing the cavity, so that the loosening condition caused by the vibration of the motor is avoided; in addition, the end cover and the motor shell are originally designed in a sealing mode, so that the interior of the motor shell is ensured to be isolated from the outside, even if a low-voltage plug-in outside the motor shell does not adopt an independent sealing structure, water can flow to an electrical interface on the end cover along a low-voltage line and can also be blocked by the original sealing structure of the motor shell, and further, even if the electrical interface on the end cover fails in sealing, the water can enter the interior of the end cover along the low-voltage line. The sealing scheme adopted by the utility model has the advantages of simple structure, easy implementation and low cost.
Drawings
Fig. 1 is a partial structural schematic view of a motor end cover in an embodiment of the utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of fixing a low-voltage wire harness by using the motor end cover in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The embodiment firstly discloses a motor end cover, as shown in fig. 1 to 3, the motor end cover is used for fixing a low-voltage wiring harness wiring terminal inside a motor shell and performing waterproof sealing treatment. The motor end cover comprises an end cover body which is partially in an L-shaped structure, and the end cover body can be divided into a first connecting surface 1 and a second connecting surface 2 which are connected in a mutually perpendicular mode. A hollow space is formed in the thickness direction of the first connecting surface 1 as a low-voltage plug-in mounting cavity 3, in which a low-voltage plug-in connected to the outside of the motor housing can be arranged. The inner wall of the second connecting surface 2 attached to the lower part of the low-voltage plug-in mounting cavity 3 is provided with a wiring harness accommodating cavity 4 for accommodating a low-voltage wiring harness, the outer side opening end of the low-voltage plug-in mounting cavity 3 is communicated with the outside of the motor shell, and the inner side opening end of the low-voltage plug-in mounting cavity 3 is communicated with the inside of the wiring harness accommodating cavity 4. The wiring harness accommodating cavity 4 is mainly arranged to enable the wiring harness to be stretched, and abnormal conditions such as needle withdrawing and poor contact of the PIN needle caused by narrow space are avoided. The lower part of the wire harness accommodating cavity 4 is provided with the wire inlet and outlet wiring terminal fixing cavity 5, in order to realize the waterproof sealing of the low-voltage wire harness, the wire inlet and outlet wiring terminal fixing cavity 5 is not directly communicated with the wire harness accommodating cavity 4, but is communicated through an output wire harness outlet hole 6 arranged between the wire harness accommodating cavity 4 and the wire inlet and outlet wiring terminal fixing cavity 5, and on the basis of meeting the wire harness outlet requirement, the sealing treatment of the output wire harness outlet hole 6 is also facilitated. An input end wire harness inlet hole 7 is formed in the inner wall of the other end of the inlet and outlet wire connecting terminal fixing cavity 5, and the input end wire harness inlet hole 7 is communicated with the inner space of the motor shell.
Business turn over line binding post fixes chamber 5 for inside cavity and one side open structure, for reaching better fixed effect to low pressure pencil binding post in the motor casing, its inner space size need not too big, designs according to binding post plug-in components's structure as far as possible, avoids it to rock. Using to mutually to insert the binding post that forms to have the wedge structure as the example, being close to end cover body second in this embodiment and connecting the inner wall department of face 2 with the inside of business turn over line binding post fixed cavity 5 and designing into two crossing inclined planes, make things convenient for the wedge to the fixed of plug-in components, set up output pencil wire hole 6 and input pencil wire inlet 7 respectively on two inclined planes.
The layout of each functional cavity designed on the end cover is considered, the functional cavities are integrally distributed along a straight line, wiring of low-voltage wiring harnesses is facilitated, and the wiring harnesses are prevented from being bent to influence insulativity. When the end cover is used for fixing and sealing the low-voltage wire harness in the motor shell, a low-voltage wire harness output end plug-in and a low-voltage wire harness input end plug-in (not shown in the figure) are inserted into each other to realize electric signal connection, then the low-voltage wire harness output end plug-in and the low-voltage wire harness input end plug-in are placed in the wire inlet and outlet terminal fixing cavity 5, the output end wire harness 11 led out by the low-voltage wire harness output end plug-in is led out from the output end wire harness outlet hole 6, the input end wire harness 12 led out by the low-voltage wire harness input end plug-in is led out from the input end wire harness wire inlet hole 7, and sealing treatment is respectively carried out at the positions of the output end wire harness outlet hole 6 and the input end wire harness wire inlet hole 7, if a glue applying mode is adopted to seal the gap between the wire hole and the wire harness, the sealing can also be considered to realize by adopting a sealing ring, so that even if the low-voltage wire harness outside the motor shell is infiltrated to the wire harness accommodating cavity 4, because of the isolation sealing protection of the wire inlet and outlet terminal fixing cavity 5, the motor shell can not be entered into, and the influence on the reliability of the motor is avoided. The open end of the inlet and outlet wiring terminal fixing cavity 5 is covered by a pressing plate 9, considering that the wiring terminals are convenient to disassemble and assemble, the pressing plate 9 and the open end of the inlet and outlet wiring terminal fixing cavity 5 are fixed by adopting a detachable structure, if a fixing hole 8 is formed in the outer wall of the open end of the inlet and outlet wiring terminal fixing cavity 5, the pressing plate 9 is locked with the fixing hole 8 by a fastener (such as a screw 10) after covering the open end. Because the open end of the inlet and outlet wiring terminal fixing cavity 5 is positioned in the motor shell, on the basis that waterproof sealing treatment is performed on the motor shell and gaps at the outlet terminal wiring harness outlet hole 6 and the inlet terminal wiring harness inlet hole 7 are sealed, whether sealing is considered between the pressing plate 9 and the open end of the inlet and outlet wiring terminal fixing cavity 5 is not necessary, but a sealing device can be arranged between the pressing plate 9 and the open end of the inlet and outlet wiring terminal fixing cavity 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a motor end cover, includes the end cover body, its characterized in that: set up low pressure plug-in components installation cavity and business turn over line binding post fixed cavity on the end cover body, business turn over line binding post fixed cavity is inside cavity and one side open structure, and the open end of low pressure plug-in components installation cavity is located the end cover body outer wall, and the inside of low pressure plug-in components installation cavity is link up through output pencil wire hole with the inside of business turn over line binding post fixed cavity, and the inside of business turn over line binding post fixed cavity is link up through input pencil wire hole and motor casing inside.
2. A motor end cap in accordance with claim 1, wherein: still be equipped with the pencil between low pressure plug-in components installation cavity and the business turn over line binding post fixed cavity and accept the chamber, the pencil accepts the one end in chamber and the inside link up each other of low pressure plug-in components installation cavity, and the other end in pencil accepts the chamber link up each other through output pencil wire hole and the inside in business turn over line binding post fixed cavity.
3. A motor end cap in accordance with claim 1, wherein: two crossed inclined planes are formed in the fixing cavity of the wire inlet and outlet wiring terminal close to the inner wall of the end cover body, and an output end wire harness wire outlet hole and an input end wire harness wire inlet hole are respectively formed in the two inclined planes.
4. A motor end cap in accordance with claim 1, wherein: and a fixing hole is formed in the outer wall of the open end of the inlet and outlet wire connecting terminal fixing cavity.
5. A motor end cap in accordance with claim 1, wherein: the end cover body comprises a first connecting surface and a second connecting surface which are perpendicular to each other, the first connecting surface and the second connecting surface are connected to form an L-shaped structure, the open end of the low-voltage plug-in mounting cavity is arranged on the first connecting surface, and the low-voltage plug-in mounting cavity and the inlet and outlet wire connecting terminal fixing cavity are arranged on the same side of the inner wall of the second connecting surface in a fit mode.
6. A low pressure pencil fixed knot constructs which characterized in that: the motor end cover comprises the motor end cover, a low-voltage wiring harness output end plug-in unit, a low-voltage wiring harness input end plug-in unit and a pressing plate according to any one of claims 1 to 5, wherein the low-voltage wiring harness output end plug-in unit and the low-voltage wiring harness input end plug-in unit are arranged in a fixing cavity of an incoming and outgoing wiring terminal, the two plug-in units are plugged in oppositely to realize electric signal connection, an output wiring harness led out by the low-voltage wiring harness output end plug-in unit is led out from an output wiring harness outlet hole, an input wiring harness led out by the low-voltage wiring harness input end plug-in unit is led out from an input wiring harness inlet hole, sealing devices are respectively arranged at the output wiring harness outlet hole and the input wiring harness inlet hole, and the open end of the fixing cavity of the incoming and outgoing wiring terminal is covered by the pressing plate.
7. A low-voltage wire harness fixing structure according to claim 6, wherein: and a sealing device is arranged between the pressing plate and the open end of the inlet and outlet wire connecting terminal fixing cavity.
8. A low-voltage wire harness fixing structure according to claim 6, wherein: the clamp plate adopts the fastener detachable to install at the open end of business turn over line binding post fixed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082067.9U CN216721055U (en) | 2021-12-09 | 2021-12-09 | Motor end cover and low-voltage wire harness fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123082067.9U CN216721055U (en) | 2021-12-09 | 2021-12-09 | Motor end cover and low-voltage wire harness fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216721055U true CN216721055U (en) | 2022-06-10 |
Family
ID=81882648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123082067.9U Active CN216721055U (en) | 2021-12-09 | 2021-12-09 | Motor end cover and low-voltage wire harness fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216721055U (en) |
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2021
- 2021-12-09 CN CN202123082067.9U patent/CN216721055U/en active Active
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