Electromagnetic valve, refrigerant circulating system and vehicle

Abstract

The utility model relates to the technical field of valve bodies, in particular to an electromagnetic valve, a refrigerant circulating system and a vehicle, the electromagnetic valve provided by the utility model comprises a valve body and a control assembly, the valve body is provided with a plurality of passages extending along a first direction and an adjusting channel extending along a second direction, and the plurality of passages are communicated with the adjusting channel; the passage is used for medium circulation; the control assembly comprises a driving unit and a valve element, and the driving unit can drive the valve element to move along the adjusting channel so that the valve element can control opening, closing and partial opening of the multiple channels. The first direction and the second direction intersect, the electromagnetic valve can control connection and disconnection of a plurality of channels, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve body technical field especially relates to a kind of electromagnetic valve, refrigerant circulation system and vehicle. BACKGROUND

[0002] At present, the refrigerant circulation system of new energy vehicle generally includes two passages, one passage is used for the temperature control of battery pack, and the other passage is used for the temperature control of vehicle interior in cooperation with air conditioning system. The existing refrigerant circulation system generally uses a single electromagnetic valve to control the passage, that is, one electromagnetic valve is configured for each passage to control the on-off of the passage, resulting in high overall cost. SUMMARY

[0003] The utility model provides a kind of electromagnetic valve, refrigerant circulation system and vehicle, the electromagnetic valve can control the on-off of multiple passages, reduce cost.

[0004] In a first aspect, the utility model embodiment provides an electromagnetic valve, comprising: a valve body having a plurality of passages extending in a first direction and an adjusting channel extending in a second direction, the plurality of passages being in communication with the adjusting channel, and the passages being used for the flow of medium;A control assembly including a drive unit and a valve core, the drive unit can drive the valve core to move along the adjusting channel to control the opening, closing and partial opening of the plurality of passages;Wherein, the first direction and the second direction are arranged intersectingly.

[0005] In a possible implementation manner, the adjusting channel includes a communication section and an avoidance section, the communication section is in communication with the passage, and the avoidance section is located between the adjacent two passages;In the case that the valve core is located in the communication section, the passage in communication with the communication section is controlled to be closed;In the case that the valve core is located in the avoidance section, the two passages on both sides of the avoidance section are controlled to be opened;In the case that the valve core is partially located in the communication section, the passage in communication with the communication section is controlled to be partially opened.

[0006] In a possible implementation manner, a communication hole is provided between the passage and the communication section, the valve core has a sealing surface for sealing the communication hole, and the sealing surface can completely cover the communication hole.

[0007] In a possible implementation manner, the communication section is provided with a sealing portion, and the sealing portion is used to fit the sealing surface to close the communication hole.

[0008] In a possible implementation manner, two passages are provided, and one valve core is provided, the valve core moves along the adjusting channel to control at least one of the two passages to be opened or partially opened.

[0009] In a possible implementation manner, three passages are provided, and the control assembly includes two drive units and two valve cores, the two valve cores are respectively arranged at the moving end of the two drive units, and are used to control at least one of the three passages to be opened or partially opened.

[0010] In a possible implementation, the driving unit comprises: a base connected with the valve body; a motor arranged on the base; and a screw rod arranged at a power output end of the motor, the screw rod extending in the second direction, and the screw rod being threadedly connected with the valve core.

[0011] In a possible implementation, the driving unit further comprises a limiting piece arranged between the base and the valve core, for limiting rotation of the valve core.

[0012] In a second aspect, the utility model provides a kind of refrigerant circulation system, comprising the solenoid valve described above.

[0013] In a third aspect, the utility model provides a kind of vehicle, comprising the refrigerant circulation system described above.

[0014] The solenoid valve, refrigerant circulation system and vehicle provided by the utility model, the valve core is moved in the adjusting channel by the driving unit, the position of the valve core in the adjusting channel is adjusted, the passage is opened, closed or partially opened, and then the on-off of multiple passages and the distribution of flow can be controlled by one solenoid valve, so that the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is a three-dimensional structure schematic view of the solenoid valve provided by the utility model.

[0017] Figure 2 It is a cross-sectional structure schematic view of the solenoid valve provided by the utility model.

[0018] Figure 3 It is a cross-sectional structure schematic view of the valve body provided by the utility model.

[0019] Figure 4 It is an explosion structure schematic view of the solenoid valve provided by the utility model.

[0020] Figure 5 It is a structure schematic view of the base, limiting piece and valve core connection provided by the utility model.

[0021] Figure 6 It is Figure 5 Another angle structure schematic view.

[0022] Figure label:

[0023] X, first direction; Y, second direction;

[0024] 1. Valve body; 11. Passage; 12. Adjustment channel; 121. Connecting section; 122. Clearance section; 123. Sealing part; 13. Connecting hole;

[0025] 2. Control components; 21. Drive unit; 211. Base; 2111. First fixing hole; 212. Motor; 213. Lead screw; 214. Limiting component; 22. Valve core; 221. Sealing surface; 222. Second fixing hole;

[0026] 3. Sealing element; 4. Sealing plug. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The following is combined Figures 1-6 This invention describes a solenoid valve provided in an embodiment of the present invention, comprising a valve body 1 and a control component 2. Wherein:

[0029] The valve body 1 has multiple passages 11 extending along a first direction X and a regulating channel 12 extending along a second direction Y. The multiple passages 11 are connected to the regulating channel 12, and the passages 11 are used for the flow of a medium. Specifically, the multiple passages 11 are arranged in parallel, the medium is refrigerant, and all multiple passages 11 are used for the delivery of refrigerant.

[0030] The control component 2 includes a drive unit 21 and a valve core 22. The drive unit 21 can drive the valve core 22 to move along the adjustment channel 12 so that the valve core 22 controls the opening, closing and partial opening of multiple passages 11.

[0031] The first direction X and the second direction Y are intersecting. Specifically, the first direction X and the second direction Y are perpendicular to each other. The medium is transported through the passage 11 along the first direction X, and the valve core 22 moves along the adjustment channel 12 along the second direction Y. By changing the position of the valve core 22 in the adjustment channel 12, the opening, closing or partial opening of the passage 11 is controlled.

[0032] The utility model discloses, through drive unit 21 drive spool 22 moves in the adjusting channel 12, through the position of spool 22 in adjusting channel 12, control passageway 11 opens, closes or partial opening, further realize an electromagnetic valve can control the on-off of multiple passageway 11 and the distribution of flow, reduce cost.

[0033] In the related art, one electromagnetic valve is configured for each passageway 11 in the refrigerant circulation system of the new energy vehicle, and the on-off or partial opening of the corresponding passageway 11 is controlled through the electromagnetic valve, so as to realize the directional delivery and flow distribution of the refrigerant. However, the cost is high. Moreover, when the flow distribution is performed, the opening degree of the multiple electromagnetic valves needs to be adjusted according to the flow condition in each passageway 11, and the control cost is high.

[0034] However, in the embodiments of the utility model, the spool 22 is moved in the adjusting channel 12 through the drive unit 21, and the corresponding passageway 11 can be controlled to open, close or partially open by changing the position of the spool 22 in the adjusting channel 12, so as to realize the control of the multiple passageways 11. For the flow distribution of the refrigerant, the position of the spool 22 can be adjusted according to the pre-set position, and the opening degree of the passageway 11 can be adjusted, so that the control of the multiple passageways 11 can be realized through one electromagnetic valve, and the cost is saved.

[0035] Specifically, the electromagnetic valve provided by the utility model realizes the control of the multiple passageways 11 through the orthogonal design (the first direction X intersects with the second direction Y), controls the opening state of the passageway 11 by the movement of the spool 22 in the adjusting channel 12, controls the multiple passageways 11 by the single drive unit 21, and reduces the number of components. The function of controlling the multiple passageways 11 through one electromagnetic valve can reduce the system cost, improve the integration degree, and simplify the control structure.

[0036] As shown in FIG. Figure 3 In some embodiments, the adjusting channel 12 includes a communication section 121 and an avoidance section 122, the communication section 121 communicates with the passageway 11, and the avoidance section 122 is located between the two adjacent passageways 11. When the spool 22 is located in the communication section 121, the passageway 11 communicating with the communication section 121 is controlled to be closed. When the spool 22 is located in the avoidance section 122, the two passageways 11 on both sides of the avoidance section 122 are controlled to be opened. When the spool 22 is partially located in the communication section 121, the passageway 11 communicating with the communication section 121 is controlled to be partially opened.

[0037] The utility model discloses, the communication section 121 of adjusting channel 12 is communicated with passageway 11, and the avoiding section 122 is located between two passageways 11, when the valve element 22 is located in the communication section 121, can close passageway 11, when the valve element 22 is located in the avoiding section 122, both sides passageway 11 are in the open state, when the valve element 22 is partially located in the communication section 121 and is partially located in the avoiding section 122, the passageway 11 corresponding to the communication section 121 where the valve element 22 is located is in the partial open state, and the passageway 11 on the other side of the avoiding section 122 is in the open state, and by adjusting the opening of the partial open passageway 11, the distribution of flow can be realized.

[0038] Specifically, different state switching is realized through the structural design of the communication section 121 and the avoiding section 122, the flow is controlled by the position change of the valve element 22 in the adjusting channel 12, the adjacent passageways 11 can be opened simultaneously due to the setting of the avoiding section 122, and the partial open state is realized by the partial covering of the communication hole 13 by the valve element 22. Further, the switching of multiple working states (full opening, full closing, partial opening) can be realized, the flow size can be accurately controlled, the combined open state of multiple passageways 11 can be controlled simultaneously, and continuous adjustable flow control is provided.

[0039] In some embodiments, the passageway 11 is provided with the communication hole 13 between the communication section 121, and the valve element 22 has a sealing surface 221 for sealing the communication hole 13, and the sealing surface 221 can completely cover the communication hole 13.

[0040] In the utility model, the sealing surface 221 is arranged on the outer surface of the valve element 22, and the sealing surface 221 can completely cover the communication hole 13. The communication hole 13 is completely covered by the sealing surface 221 of the valve element 22, and the corresponding passageway 11 is in a closed state. The communication hole 13 is partially covered by the sealing surface 221 of the valve element 22, and the corresponding passageway 11 is in a partially open state. The structure design of the communication hole 13 and the sealing surface 221 ensures the sealing effect through complete covering design, and the design of the sealing surface 221 facilitates accurate adjustment. Reliable sealing effect is provided, accurate flow control is realized, leakage risk is reduced, and the service life of the valve is prolonged.

[0041] As shown in the drawings, Figure 3 In some embodiments, the communication section 121 is provided with a sealing portion 123, and the sealing portion 123 is used for abutting against the sealing surface 221 to close the communication hole 13.

[0042] The utility model discloses a sealing part 123 is provided with in the communication section 121 of adjusting channel 12, is pasted through sealing part 123 and sealing surface 221, through setting up the sealing part 123 specially in the communication section 121, adopts the pasting design of sealing part 123 and sealing surface 221, realizes the synergism of sealing part 123 and sealing surface 221, disperses sealing pressure through the pasting design, forms double -sided sealing protection, improves the sealing reliability, reduces sealing surface 221 abrasion, prolongs the service life of device.

[0043] Specifically, the sealing part 123 can include a rubber seal ring, a metal seal ring, and a composite seal.

[0044] The sealing surface 221 and the sealing part 123 can be flat, convex, or elastic.

[0045] Preferably, the adjusting channel 12 is a cylindrical cavity, and the valve core 22 is a cylindrical structure. The outer surface of the valve core 22 is pasted with the inner surface of the adjusting channel 12, which can ensure the sealing effect and wear resistance, and can ensure the service life.

[0046] In a specific embodiment, the passage 11 is provided with two, the valve core 22 is provided with one, the valve core 22 moves along the adjusting channel 12, and is used for controlling at least one of the two passages 11 to be opened or partially opened.

[0047] In the utility model, the single valve core 22 is used to control the structure design of the multi-passageway 11. The position change of the valve core 22 realizes the combination of different passages 11, the movement of the valve core 22 realizes the accurate flow regulation, and the driving mechanism design is simplified. The single valve core 22 controls the double passage 11, reduces the system complexity, reduces the number of components, reduces the production cost, and improves the control integration.

[0048] Specifically, the two passages 11 are respectively a first passage 11 and a second passage, and the driving unit 21 drives the valve core 22 to move in the adjusting passage 12. When the valve core 22 moves to the communication section 121 in communication with the first passage 11, the first passage 11 is closed, and the second passage 11 is in an open state; when the valve core 22 moves to the communication section 121 in communication with the second passage 11, the second passage 11 is closed, and the first passage 11 is in an open state; when the valve core 22 moves to the avoidance section 122, the first passage 11 and the second passage 11 are both in an open state; when the valve core 22 is partially located in the avoidance section 122 and partially located in the communication section 121 in communication with the first passage 11, the first passage 11 is in a partially open state, and the second passage 11 is in an open state, and the flow of the second passage 11 is greater than that of the first passage 11, at this time, the flow of the first passage 11 and the second passage 11 can be distributed by adjusting the opening degree of the first passage 11; when the valve core 22 is partially located in the avoidance section 122 and partially located in the communication section 121 in communication with the second passage 11, the second passage 11 is in a partially open state, and the first passage 11 is in an open state, and the flow of the first passage 11 is greater than that of the second passage 11, at this time, the flow of the first passage 11 and the second passage 11 can be adjusted by adjusting the opening degree of the second passage 11.

[0049] In another specific embodiment, the passage 11 is provided with three, the control assembly 2 includes two driving units 21 and two valve cores 22, and the two valve cores 22 are arranged at the moving end of the two driving units 21, and are used for controlling at least one of the three passages 11 to be opened or partially opened.

[0050] In the utility model, the innovative design that three passages 11 are controlled by two valve cores 22 is adopted, independent control is realized through two driving units 21, a variety of working conditions are realized by position combination of valve core 22, and simultaneous control of any two or three passages 11 can be realized. The cooperative control of three passages 11 is realized, more flexible flow distribution scheme is provided, system adaptability is enhanced, compared with three independent electromagnetic valve scheme, cost is reduced, and control precision and response speed are improved.

[0051] Specifically, two driving units 21 are arranged at two ends of the valve body 1 along the second direction Y, respectively controlling two valve cores 22 to slide in the adjusting channel 12, the adjusting channel 12 is provided with three communication sections 121 and two avoidance sections 122, the three communication sections 121 are respectively communicated with the three passages 11.

[0052] In another specific embodiment, when four passages 11 need to be controlled, two electromagnetic valves can be selected, each of which controls two passages 11. When five passages 11 need to be controlled, two electromagnetic valves can be selected, one of which controls two passages 11 and the other controls three passages 11.

[0053] As shown in Figure 2 , 4 In some embodiments, the driving unit 21 comprises a base 211 connected with the valve body 1, a motor 212 arranged on the base 211, and a screw rod 213 arranged at the power output end of the motor 212, the screw rod 213 extending along the second direction Y, and the screw rod 213 being threadedly connected with the valve core 22.

[0054] In the utility model, the motor 212 drives the screw rod 213 to rotate, the screw rod 213 is threadedly connected with the valve core 22, and the screw rod 213 drives the valve core 22 to slide along the adjusting channel 12, so that the position of the valve core 22 in the adjusting channel 12 is changed. The transmission mode of the motor 212 and the lead screw is adopted, the rotary motion is converted into linear motion through thread connection, the position is kept by using the self-locking characteristic of the lead screw, the motor 212 provides accurate angle control, and accurate position control is realized.

[0055] Specifically, the motor 212 adopts a stepping motor 212, the rotation angle of the screw rod 213 can be accurately controlled, a larger driving force is provided, the stepping motor 212 has a self-locking function, movement is stable and controllable, positioning accuracy is high, and power consumption is low.

[0056] The valve core 22 comprises a transmission part, the transmission part is a cylindrical structure, an internal thread structure is arranged in the transmission part, and the internal thread structure is threadedly connected with the lead screw.

[0057] Optionally, the drive unit 21 can also adopt other linear drive forms, such as cylinders, electric actuators, etc.

[0058] The solenoid valve also includes a sealing element 3, which is disposed between the valve body 1 and the base 211. The valve body 1 is also provided with an opening that communicates with the end of the regulating channel 12. A sealing plug 4 is provided at the opening. The sealing element 3 is also disposed between the sealing plug 3 and the valve body 1.

[0059] In some embodiments, the drive unit 21 further includes a limiting member 214, which is disposed between the base 211 and the valve core 22 to limit the rotation of the valve core 22.

[0060] In this invention, the limiting member 214 constrains the rotation of the valve core 22, ensuring that the valve core 22 only moves axially. This prevents sealing failure caused by the rotation of the valve core 22, provides stable motion guidance, ensures the motion stability of the valve core 22, improves sealing reliability, extends service life, and enhances control accuracy.

[0061] The limiting component 214 may include guide pins, guide grooves, anti-rotation keys, etc. The method of limiting rotation can be point contact limiting, surface contact limiting, or multi-point limiting.

[0062] like Figures 5-6 As shown, preferably, the limiting member 214 provided in this embodiment is a spring. One end of the spring is connected to the base 211, and the other end is connected to the valve core 22. The spring prevents the valve core 22 from rotating with the lead screw. Specifically, a first fixing hole 2111 is provided on the base 211, and a second fixing hole 222 is provided on the valve core 22. The spring can also extend and compress as the valve core 22 moves.

[0063] Specifically, both the regulating channel 12 and the valve core 22 are cylindrical. The cylindrical shape of the regulating channel 12 facilitates machining and ensures a good fit between the valve core 22 and the regulating channel 12, thus guaranteeing a sealing effect. However, a problem with both the cylindrical regulating channel 12 and the cylindrical valve core 22 is that the valve core 22 tends to rotate within the regulating channel 12. When synchronous transmission occurs between the valve core 22 and the lead screw, it affects the accuracy of the valve core 22's displacement within the regulating channel 12. The accuracy of the valve core 22's displacement within the regulating channel 12 is ensured by setting a limiting element 214 to allow the valve core 22 to rotate with the lead screw.

[0064] In another optional embodiment, the adjustment channel 12 can be configured as a square, rectangular or other irregular structure to limit the valve core 22 by the shape, preventing the valve core 22 from rotating with the lead screw, thereby ensuring the accuracy of the displacement of the valve core 22 in the adjustment channel 12.

[0065] The electromagnetic valve drives the valve core 22 to move in the adjusting channel 12 through the driving unit 21, controls the opening, closing or partial opening of the passage 11 by adjusting the position of the valve core 22 in the adjusting channel 12, and thus realizes that one electromagnetic valve can control the on-off and flow distribution of multiple passages 11, thereby reducing the cost.

[0066] The utility model embodiment provides a kind of refrigerant circulation system, comprising above-mentioned electromagnetic valve.

[0067] Specifically, the refrigerant circulation system includes a plurality of refrigerant pipelines, which are respectively communicated with the plurality of passages 11 of the electromagnetic valve, and the on-off and flow distribution of the plurality of refrigerant pipelines can be controlled by one electromagnetic valve, thereby reducing the cost.

[0068] The utility model embodiment provides a kind of vehicle, comprising above-mentioned refrigerant circulation system.

[0069] The vehicle in the utility model includes a pure electric vehicle, a hybrid electric vehicle, a hydrogen fuel cell vehicle, an intelligent network connected vehicle and the like. It can include a passenger car, a commercial vehicle, a special purpose vehicle and the like.

[0070] Specifically, the vehicle provided by the utility model embodiment is a new energy vehicle, because the refrigerant circulation system of the new energy vehicle is not only used for temperature control in the vehicle, but also used for battery temperature control, and generally has two refrigerant pipelines. By using the electromagnetic valve in the utility model, the control of the two refrigerant pipelines can be realized, thereby saving cost, reducing occupied space and optimizing the layout in the vehicle.

[0071] The device embodiments described above are only schematic, wherein the units illustrated as separate components can or can not be physically separated, and the components illustrated as units can or can not be physical units, i.e., they can be located in one place, or distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement it without creative labor.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An electromagnetic valve characterized by comprising: The utility model relates to a valve body (1) having a plurality of passages (11) extending in a first direction and an adjustment channel (12) extending in a second direction, the plurality of passages (11) being in communication with the adjustment channel (12), the passages (11) being for the flow of a medium; A control assembly (2) comprising a drive unit (21) and a valve core (22), the drive unit (21) being capable of driving the valve core (22) to move along the adjustment channel (12) so that the valve core (22) controls the opening, closing and partial opening of the plurality of passages (11); Wherein, the first direction and the second direction are arranged intersectingly. The adjustment channel (12) comprises a communication section (121) and an avoidance section (122), the communication section (121) being in communication with the passages (11), and the avoidance section (122) being located between two adjacent passages (11); 2. The electromagnetic valve according to claim 1, characterized by In the case that the valve core (22) is located in the communication section (121), the passage (11) in communication with the communication section (121) is controlled to be closed; In the case that the valve core (22) is located in the avoidance section (122), the two passages (11) on both sides of the avoidance section (122) are controlled to be opened; In the case that the valve core (22) is partially located in the communication section (121), the passage (11) in communication with the communication section (121) is controlled to be partially opened. A communication hole (13) is arranged between the passage (11) and the communication section (121), and the valve core (22) has a sealing surface (221) for sealing the communication hole (13), and the sealing surface (221) can completely cover the communication hole (13).

3. The electromagnetic valve according to claim 2, characterized by The communication section (121) is provided with a sealing part (123) for abutting against the sealing surface (221) so that the communication hole (13) is closed.

4. The electromagnetic valve according to claim 3, characterized by The passages (11) are provided in two, the valve core (22) is provided in one, and the valve core (22) moves along the adjustment channel (12) to control at least one of the two passages (11) to be opened or partially opened.

5. The electromagnetic valve according to any one of claims 1 to 4, characterized by The passages (11) are provided in three, the control assembly (2) comprises two drive units (21) and two valve cores (22), and the two valve cores (22) are arranged at the moving ends of the two drive units (21) respectively to control at least one of the three passages (11) to be opened or partially opened.

6. The electromagnetic valve according to any one of claims 1 to 4, characterized by The drive unit (21) comprises:

7. The electromagnetic valve according to claim 1, characterized by A base (211) connected with the valve body (1); A motor (212) arranged on the base (211); A screw rod (213) arranged at the power output end of the motor (212), the screw rod (213) extending in the second direction, and the screw rod (213) being threadedly connected with the valve core (22). The drive unit (21) further comprises a limiting piece (214) arranged between the base (211) and the valve core (22) to limit the rotation of the valve core (22).

8. The electromagnetic valve according to claim 7, characterized by ​ 9. A refrigerant circulating system characterized by comprising: The electromagnetic valve according to any one of claims 1 to 8.

10. A vehicle characterized by comprising: The refrigerant circulation system according to claim 9.

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