CN208548431U

CN208548431U - Battery ptc heater and its shell, battery heating system and electric car

Info

Publication number: CN208548431U
Application number: CN201820761939.3U
Authority: CN
Inventors: 游辉; 黄炳健
Original assignee: BYD Auto Industry Co Ltd
Current assignee: BYD Auto Co Ltd; BYD Auto Industry Co Ltd
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2019-02-26
Anticipated expiration: 2028-05-21

Abstract

This disclosure relates to a kind of battery ptc heater and its shell, battery heating system and electric car, the shell includes detachably connected first shell and second shell, second shell is sealably coupled to the cavity body structure being surrounded by first shell for accommodating control panel, be formed in first shell for harness horizontal through evacuation aperture so that pass through evacuation aperture harness can be installed on control panel in a control panel lateral edge opposite with first shell perpendicular to the direction of control panel.Since the direction that the direction that harness passes through shell is installed to control panel with harness is staggered, before second shell is assembled into first shell, the side opposite with first shell of control panel is installed to for harness provides sufficient installation space on control panel, without additionally opening up skylight on skylight, convenient for the assembly of high-low pressure connector, also enable harness to retain with length as short as possible prevents the harness being trapped in shell when vibration from damaging other components inside the housing.

Description

Battery ptc heater and its shell, battery heating system and electric car

Technical field

This disclosure relates to power battery technology field, and in particular, to a kind of battery ptc heater and its shell, battery Heating system and electric car.

Background technique

In the related art, the shell of cell heater structure is usually formed as laminated construction clearly demarcated up and down, i.e., under It is supreme successively include lower box body, PTC (Positive Temperature Coefficient, positive temperature coefficient), control panel and Upper cover.When assembling, the connector of high-voltage wiring harness and low voltage wiring harness protrudes into inside from upper outer side of lid, is then consolidated by way of playing screw It is scheduled on the joint chair of control panel, because harness cannot stay too long surplus in shell, shell intracorporal zero can be broken when otherwise vibrating Component, therefore screw can not be played before upper cover is installed, lower cover, PTC, control panel and upper cover can only be successively assembled, upper cover is then passed through The skylight opened up in advance assembles high-voltage connector and low pressure connector in a manner of playing screw, finally seals skylight.

Since the assembly of high-low pressure connector needs to put in a skylight on shell, the production technology of shell is not only increased, is also increased The sealing process of skylight when shell having been added to assemble, and also reduce the sealing effect of cabinet.

Utility model content

Purpose of this disclosure is to provide a kind of battery ptc heater and its shell, battery heating system and electric car, with Solve above-mentioned technical problem.

According to the disclosure in a first aspect, a kind of battery ptc heater shell is provided, including detachably connected first Shell and second shell, the second shell are sealably coupled to the chamber being surrounded by the first shell for accommodating control panel Body structure, be formed in the first shell for harness horizontal through evacuation aperture so that passing through the evacuation aperture The harness can be installed in a control panel lateral edge opposite with the first shell perpendicular to the direction of the control panel Onto the control panel.

Optionally, the evacuation aperture is located at the top of the control panel, and is arranged close to the control panel.

Optionally, the first shell is formed as the cover body structure placed vertically, and the second shell is formed as the court that is open To the cover structure of the cover body structure, the evacuation aperture is formed on the cover body structure, the control panel and the lid Body structure is arranged in a mutually vertical manner.

Optionally, the second shell is formed as horizontal positioned cover body structure, and the first shell is formed as the court that is open To the cover structure of the cover body structure, the evacuation aperture is formed on the side wall of the cover structure, the control panel with The cover body structure is arranged in parallel.

According to the second aspect of the disclosure, a kind of battery ptc heater is provided, which includes PTC heating The battery ptc heater shell that component and the control panel being electrically connected with the PTC heating component and the disclosure provide, it is described The inside of the cavity body structure is arranged in PTC heating component.

Optionally, high device is electrically connected on the control panel, the PTC heating component and the high device mutually stagger Ground is distributed on the lower surface of the control panel.

Optionally, the inside of the cavity body structure is additionally provided with the heat-exchanging water on the lower surface fixed to the control panel Road, the heat exchange water channel are configured with mutually independent first holding tank and second in the inside of the cavity body structure respectively and accommodate Slot, the PTC heating component are embedded in first holding tank, with the heat exchange water channel contact heat-exchanging, the high device It is contained in second holding tank.

Optionally, the heat exchange water channel includes that a pair is parallel to each other and spaced main channel, and connection is in a pair Side between the main channel is parallel to each other and spaced multiple diversion channels, and each diversion channel and each main channel are mutual Vertically, collectively as first holding tank, the PTC heating component includes in the gap between all adjacent diversion channels The multiple PTC element being embedded in the gap of the adjacent diversion channel correspondingly, it is another between a pair of main channel Side and multiple diversion channels surround second holding tank jointly.

Optionally, each diversion channel includes spaced roof and bottom wall, and is connected to the roof and the bottom Being parallel to each other between wall and spaced a pair of sidewalls, the wall thickness of any direction of each main channel are all larger than each point of water The wall thickness of any direction in road, multiple PTC element side relative to each other with a pair of adjacent diversion channel respectively Wall contact heat-exchanging.

Optionally, the electric-controlled switch for controlling the heating power of the PTC heating component, institute are electrically connected on the control panel The cover body structure that first shell is formed as placing vertically is stated, the second shell is formed as the cover being open towards the cover body structure Body structure, the evacuation aperture are formed on the cover body structure, and the control panel is arranged in a mutually vertical manner with the cover body structure, The potsherd for insulating and exchanging heat is fitted on the side wall for being exposed to second holding tank of the diversion channel, it is described In electric-controlled switch setting to the potsherd.

Optionally, the electric-controlled switch is the IGBT fitted on the potsherd.

Optionally, at least one of the water inlet pipe mouth of the heat exchange water channel and effluent pipe mouth pass through the first shell and set It sets, is respectively positioned on institute across the water inlet pipe mouth of first shell setting and/or the effluent pipe mouth and the evacuation aperture It states on the same side of cavity body structure, first holding tank is arranged far from the evacuation aperture, and second holding tank is close to institute State evacuation aperture setting.

According to the third aspect of the disclosure, a kind of battery heating system, including power battery are provided, and for heating The heating structure of power battery is stated, the battery PTC heater which uses the disclosure to provide.

According to the fourth aspect of the disclosure, a kind of electric car is provided, the battery which uses the disclosure to provide Heating system.

Through the above technical solutions, due to harness pass through shell direction (i.e. horizontal direction) and harness be installed to control panel Direction (i.e. vertical direction) mutually stagger, and before second shell is assembled into first shell, control panel and first shell Opposite side is installed to for harness provides sufficient installation space on control panel, consequently facilitating the assembly of high-low pressure connector Meanwhile the harness being fixed on the high-low pressure plug connector also being enabled to retain inside the housing with length as short as possible, prevent The harness being only trapped in when heater vibration in shell damages other components.Also, the heater housing group that the disclosure provides Dress is convenient, without additionally open up on the shell for assemble such as high-low pressure connector such as skylight open-celled structure, avoid outside The sealing process of open-celled structure, promotes the sealing effect of shell when shell assembles.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is the stereoscopic schematic diagram of the battery ptc heater provided according to an illustrative embodiments of the disclosure；

Fig. 2 is the local overlooking schematic diagram of the battery ptc heater provided according to an illustrative embodiments of the disclosure, Wherein to clearly show that the components in second shell 12, second shell 12 is omitted；

Fig. 3 is the assembling signal of the control panel 2 provided according to an illustrative embodiments of the disclosure and heat exchange water channel 6 Figure；

Fig. 4 is the sectional perspective schematic diagram of the battery ptc heater provided according to an illustrative embodiments of the disclosure, Wherein to clearly show that the components in second shell 12, second shell 12 is omitted；

Fig. 5 is the stereoscopic schematic diagram of the battery ptc heater provided according to the another exemplary embodiment of the disclosure；

Fig. 6 is to provide the sectional perspective schematic diagram of battery ptc heater according to the another exemplary embodiment of the disclosure, Wherein to clearly show that the components in first shell 11, second shell 12 is omitted；

Fig. 7 is the assembling of the first shell 11 provided according to the another exemplary embodiment of the disclosure and heat exchange water channel 6 Schematic diagram；

Fig. 8 is that the assembling of the control panel 2 provided according to the another exemplary embodiment of the disclosure and heat exchange water channel 6 is shown It is intended to.

Description of symbols

10 evacuation 11 first shell of aperture, 12 second shells

2 control panel, 3 harness, 4 PTC heating component

The high heat exchange of device 6 water channel of 40 PTC element 5

61 water inlet pipe mouth, 62 effluent pipe mouth, 63 main channel

64 diversion channel, 640 roof, 641 side wall

7 electric-controlled switch, 8 potsherd

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, bottom, top " be usually with It is defined based on state when the battery ptc heater that the disclosure provides is in normal use, " inside and outside " refers to corresponding component Profile it is inner and outer.

As shown in Figures 1 to 7, the disclosure provides a kind of battery ptc heater shell, using the battery ptc heater outside The battery ptc heater of shell, it is electronic using the battery heating system of the battery ptc heater and using the battery heating system The technical solution of automobile.PTC heating component 4, the heat exchange water channel 6 with 4 contact heat-exchanging of PTC heating component, and with the PTC The control panel 2 that heating component 4 is electrically connected is sealingly arranged in the inside of the cavity body structure of the battery ptc heater shell and is formed Battery ptc heater.Wherein, the course of work that battery ptc heater heats the power battery in battery heating system It is well known to those skilled in the art with working principle, that is, passed to and changed by the Joule heat that the work of PTC heating component generates Heat is then passed to power battery via heat exchange water channel by the medium for absorbing heat, successively by the medium in hot water channels 6 It moves in circles, the disclosure does not elaborate to this.

The battery ptc heater shell that disclosure offer is described in detail below is (following by battery PTC heater housing All be referred to as shell) specific structure, as shown in Figures 1 to 8, which includes detachably connected first shell 11 and the Two shells 12, second shell 12 are sealably coupled to the cavity body structure being surrounded by first shell 11 for accommodating control panel 2, the Be formed on one shell 11 for harness 3 horizontal through evacuation aperture 10 so that the harness 3 for passing through evacuation aperture 10 can be One lateral edge of the separate first shell 11 of control panel 2 is installed on control panel 2 perpendicular to the direction of control panel 2.

In the disclosure, harness 3 is that PTC heating component 4 is such as realized the high-voltage wiring harness being electrically connected with high voltage power supply, may be used also Think such as that control panel 2 is total with low-tension supply and CAN (Controller Area Network, controller local area network) respectively Line is electrically connected and that realizes communicates interactive low voltage wiring harness.The high-voltage wiring harness for example can be electric by it by high-voltage connector It is connected on control panel 2, which can be for example electrically coupled on control panel 2 by low pressure connector.Certainly, should Harness 3 can also need to be any other across shell and the connection wiring harness that is electrically connected with control panel, and the disclosure does not limit this System.

In this way, when assembled battery ptc heater, it can be first by each zero in the ptc heater including control panel 2 Part is assembled into first shell 11, and keeps control panel 2 horizontal positioned, then in the opposite with first shell 11 of control panel 2 Harness is installed on control panel by side along the direction perpendicular to control panel 2, such as can pass through the line of evacuation aperture 10 The connector of beam end is fixed on the joint chair being welded on control panel 2 in the direction perpendicular to control panel 2 in a manner of playing screw, Then second shell 12 is assembled into first shell 11 from the side opposite with first shell 11 of control panel 2, that is, is completed outer The assembling of shell.

Since the direction that harness passes through the direction (i.e. horizontal direction) of shell and harness is installed to control panel is (i.e. vertical square To) mutually stagger, and before second shell 12 is assembled into first shell 11, one opposite with first shell 11 of control panel 2 Side is installed to for harness provides sufficient installation space on control panel 2, consequently facilitating while high-low pressure connector assembles, also The harness being fixed on the high-low pressure plug connector is retained inside the housing with length as short as possible, prevents heater The harness being trapped in shell when vibration damages other components.Also, the heater housing that the disclosure provides is easy to assembly, nothing Need additionally to open up on the shell for assemble such as high-low pressure connector such as skylight open-celled structure, avoid when shell assembles and open The sealing process of pore structure promotes the sealing effect of shell.

In the various illustrative embodiments that the disclosure provides, to enable harness to store with length as short as possible In the inside of cavity body structure, as shown in fig. 6, evacuation aperture 10 can be located at the top of control panel 2, and set close to control panel 2 It sets.That is, evacuation aperture 10 is arranged close to the edge of control panel 2, in this way, the harness for passing through the evacuation aperture 10 on the shell can be with It is fixed on circuit board with straight state, and avoids that harness is unnecessary inside the housing to turn around, so that the harness of interior of shell It moves towards more succinct, and the harness being trapped in shell when heater vibration is avoided to damage other components.

In the disclosure, above-mentioned cavity body structure can be realized in several ways, as shown in Figures 1 to 4, in the disclosure In a kind of illustrative embodiment provided, for convenience of the assembling of shell, what first shell 11 can be formed as placing vertically Cover body structure, second shell 12 can be formed as the cover structure being open towards cover body structure, and evacuation aperture is formed in lid knot On structure, control panel 2 is arranged in a mutually vertical manner with cover body structure.

In this way, for example PTC heating component 4 can be snapped fit onto heat exchange water channel 6, will be then arranged just like height when installation The control panel 2 of multiple components such as device is fixed to the top of heat exchange water channel 6, and PTC heating component 4 is electrically connected to control On plate 2, it will be subsequently formed and be assembled on the circuit board 2 for the first shell 11 of cover body structure, and will be horizontal through the line of shell Beam 3 is installed on horizontal positioned control panel along the direction perpendicular to control panel 2, finally again from control panel 2 and first shell The second shell 12 that the opposite side of body 11 is formed into cover structure is assembled on the cover body structure, that is, is completed outside the heater The assembly of shell.

As shown in Fig. 5 to Fig. 8, in the illustrative embodiment of another kind that the disclosure provides, for convenience of the group of shell Dress, second shell 12 may be formed as horizontal positioned cover body structure, and first shell 11 may be formed as opening towards lid The cover structure of body structure, that is, cover structure it is opening up, evacuation aperture 10 be formed on the side wall of cover structure, control Plate 2 and cover body structure are arranged in parallel.

In this way, the water channel 6 that will can for example exchange heat is fixed in the first shell 11 for being formed as cover structure when installation Then PTC heating component 4 is electrically connected on control panel 2 by portion, then the control by setting just like multiple components such as high device Plate 2 is fixed to the top of heat exchange water channel 6, and PTC heating component 4 is snapped fit onto heat exchange water channel 6, then will be horizontal through outer The harness 3 of shell is installed on horizontal positioned control panel along the direction perpendicular to control panel 2, is finally formed into again from top The second shell 12 of cover body structure is assembled into the cover structure, that is, completes the assembly of the heater housing.

Disclosure offer is described in detail below in the specific structure of battery ptc heater shell described in detail above The distribution relation of other each components inside the cavity body structure of battery ptc heater.

As shown in Figures 1 to 8, in a kind of illustrative embodiment that the disclosure provides, to improve battery PTC heating Space utilization rate inside the cavity body structure of device reduces the overall volume of the heater, and high device 5 is electrically connected on control panel 2, PTC heating component 4 and high device 5 are distributed in mutually staggered on the lower surface of control panel 2.In such manner, it is possible to make full use of control The same side of control panel 2 is arranged in, so that each in the biggish each components of height dimension by the plate face area on plate 2 Components are compactly distributed on control panel, are improved space utilization rate, are reduced the whole height of heater.

Wherein, high device 5 can be such as at least one of inductance element and capacity cell, can also be this field skill Other are set to the biggish electronic component of the height dimension on control panel known to art personnel.

For the space utilization rate for further improving cavity body structure, as shown in Figures 1 to 8, the inside of cavity body structure is also set The heat exchange water channel 6 being equipped on the lower surface fixed to control panel 2, heat exchange water channel are configured with mutually respectively in the inside of cavity body structure Independent first holding tank and the second holding tank, PTC heating component 4 are embedded in the first holding tank, to connect with heat exchange water channel 6 Touching heat exchange, high device 5 are contained in the second holding tank.Since high device 5 and PTC heating component 4 are arranged in heat exchange water channel 6 In the receiving slot structure of cage structure, that is, high device 5, PTC heating component 4 and heat exchange water channel 6 are generally in the same height of shell Degree, therefore, can reduce the whole height of shell, promotes the space utilization rate of cavity body structure.

Further, it is the structure for simplifying heat exchange water channel 6, facilitates processing, while improving the heat exchange efficiency of heater, such as schemes 1 to shown in Fig. 8, and heat exchange water channel 6 may include that a pair is parallel to each other and spaced main channel 63, and connection are main in a pair Side between water channel 63 is parallel to each other and spaced multiple diversion channels 64, each diversion channel 64 and each 63 phase of main channel Mutually vertical, the gap between all adjacent diversion channels 64 is collectively as the first holding tank, that is, first holding tank includes along master The spaced multiple rectangular slots of the length direction of water channel 63.PTC heating component 4 is adjacent including being embedded correspondingly Diversion channel 64 gap in multiple PTC element 40, that is, the quantity of rectangular slot is identical with the quantity of PTC element 40, and Multiple PTC element 40 are inserted into correspondingly in multiple rectangular slots.In this way, interior in a limited space heat-exchanging water can be increased The contact area in road 6 and PTC heating component 4 improves the two heat exchange efficiency, in addition, the structure of heat exchange water channel 6 is simple, is easy to real It is existing.

Wherein, the other side between a pair of of main channel 64 and multiple diversion channels 64 surround the second holding tank jointly.That is, multiple The diversion channel 64 of the other side near main channel 64 of diversion channel 64 and a pair of of main channel 64 surround jointly is formed as U-shaped fluting The second holding tank, to accommodate the electronic component of enough such as high devices.

To further improve the heat exchange efficiency of exchange heat water channel 6 and PTC heating component 4, and guarantee that heat exchange water channel 6 has foot Enough structural strengths, as shown in Figures 1 to 8, each diversion channel 64 include spaced roof 640 and bottom wall, and connection Being parallel to each other between roof 640 and bottom wall and spaced a pair of sidewalls 641, any direction of each main channel 63 Wall thickness is all larger than the wall thickness of any direction of each diversion channel 64, multiple PTC element 40 respectively with a pair of adjacent diversion channel 64 641 contact heat-exchanging of side wall relative to each other.For example, main channel 63 may include that a pair is parallel to each other and spaced main channel Roof and main channel bottom wall, and it is connected to being parallel to each other between main channel roof and main channel bottom wall and spaced one To main channel side wall, wherein the side wall 641 of main channel side wall and the diversion channel 64 is arranged in a mutually vertical manner.At this point, the main channel The wall thickness of any one in 63 main channel roof, main channel side wall and main channel bottom wall is all larger than the top of the diversion channel 64 Any one in wall, bottom wall and side wall.Thus it is possible, on the one hand, by the side wall of PTC element 40 and the relatively thin diversion channel 64 of wall thickness 641 contact heat-exchangings, reduce the heat exchange thickness of heat exchange water channel 6 and PTC heating component 4, to reduce thermal resistance, improve the heat exchange of the two Efficiency；On the other hand, since a pair of of main channel 63 of heat exchange water channel 6 is primarily subjected to the weight of other components in short transverse Amount, therefore, is designed thicker than the wall thickness of any direction of diversion channel 64 for the wall thickness of any direction of main channel 63, Ke Yiti The stock utilization of height heat exchange water channel 6, saves cost, and improve its service life.

Wherein, in a kind of illustrative embodiment, the diversion channel 64 can using Sheet Metal Forming Technology be fabricated to thickness compared with The thicker water channel channel of thickness can be made using casting technique in thin water channel channel, the main channel 63.

In the disclosure, it is the heating power for controlling the PTC heating component 4, control institute is electrically connected on the control panel 2 The electric-controlled switch 7 of the heating power of PTC heating component 4 is stated, for example, the electric-controlled switch 7 can be IGBT (Insolated Gat Bipolar Transistor, insulated gate bipolar transistor), or can be relay.

Further, for convenience of the heat dissipation of the electric-controlled switch 7, the side wall 641 for being exposed to the second holding tank of diversion channel 64 On be fitted with potsherd 8 for insulating and exchanging heat, in the setting to potsherd 8 of electric-controlled switch 7.Since potsherd 8 has well Electrical insulating property and good heating conduction, therefore electric-controlled switch 7 is contacted with the side wall 641 of diversion channel 64 and is changed by potsherd 8 The heat exchange efficiency of the two can be improved in heat, and the heat convenient for generating electric-controlled switch work is rapidly transferred on heat exchange water channel 6. In other modes of texturing, which can also be substituted with two components for being respectively provided with insulation and heat sinking function, such as Potsherd 8 can be replaced with the combination of the silicon wafer with insulation performance and the aluminium flake with heating conduction.

For save the cost, the occupied space of electric-controlled switch 7 is reduced, electric-controlled switch 7 can be to fit on potsherd 8 IGBT。

For the packaging efficiency for improving heater, as shown in Figures 1 to 8, the water inlet pipe mouth 61 and outlet pipe of the water channel 6 that exchanges heat At least one of mouth 62 passes through first shell 11 and is arranged, that is, situation there are three types of depositing herein: the first, as shown in figure 5, only changing The water inlet pipe mouth 61 of hot water channels 6 is arranged across first shell 11；The second, the effluent pipe mouth 62 of only heat exchange water channel 6 passes through first Shell 11 is arranged；Third, as shown in Fig. 2, heat exchange water channel 6 water inlet pipe mouth 61 and effluent pipe mouth 62 both pass through first shell 11 and set It sets.

And it passes through water inlet pipe mouth 61 and/or effluent pipe mouth 62 that first shell 11 is arranged to be respectively positioned on aperture 10 is avoided On the same side of cavity body structure.That is, by each components for passing through shell be arranged in as far as possible shell be located at evacuation aperture 10 it is ipsilateral on, the packaging efficiency of shell not only can be improved, but also can be avoided or reduce and open up in other sides of shell Open-celled structure, consequently facilitating in other side arrangement other function components, the i.e. space utilization rate of vehicle of shell.

It further, is the heat exchange efficiency for improving heater, the first holding tank is arranged far from evacuation aperture 10, and second accommodates Slot is arranged close to evacuation aperture 10.That is, the first holding tank is located at ipsilateral water inlet pipe mouth 61 with evacuation aperture 10 far from shell And/or effluent pipe mouth 62 is arranged, and so as to extend the total length inside cavity body structure of heat exchange water channel 6, extends medium and exists The residence time in heat exchange water channel 6 in shell, to improve the heat exchange efficiency of heater.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.It is further to note that in above-mentioned specific embodiment Described in each particular technique feature can be combined in any appropriate way in the case of no contradiction, be Avoid unnecessary repetition, no further explanation will be given to various combinations of possible ways for the disclosure.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims

1. a kind of battery ptc heater shell, which is characterized in that including detachably connected first shell (11) and second shell Body (12), the second shell (12) are sealably coupled on the first shell (11) to be surrounded by for accommodating control panel (2) Cavity body structure, be formed on the first shell (11) for harness (3) horizontal through evacuation aperture (10) so that passing through The harness (3) of evacuation aperture (10) can be in the control panel (2) and the first shell (11) opposite side It is installed on the control panel (2) along the direction perpendicular to the control panel (2).

2. battery ptc heater shell according to claim 1, which is characterized in that the evacuation aperture (10) is located at institute The top of control panel (2) is stated, and is arranged close to the control panel (2).

3. battery ptc heater shell according to claim 1 or 2, which is characterized in that the first shell (11) is formed For the cover body structure placed vertically, the second shell (12) is formed as the cover structure being open towards the cover body structure, institute It states evacuation aperture to be formed on the cover body structure, the control panel (2) is arranged in a mutually vertical manner with the cover body structure.

4. battery ptc heater shell according to claim 1 or 2, which is characterized in that the second shell (12) is formed For horizontal positioned cover body structure, the first shell (11) is formed as the cover structure being open towards the cover body structure, institute It states evacuation aperture (10) to be formed on the side wall of the cover structure, the control panel (2) is parallel to each other with the cover body structure Setting.

5. a kind of battery ptc heater, including PTC heating component (4) and the control being electrically connected with the PTC heating component (4) Plate (2), which is characterized in that it further include battery ptc heater shell according to any one of claim 1 to 4, it is described The inside of the cavity body structure is arranged in PTC heating component (4).

6. battery ptc heater according to claim 5, which is characterized in that be electrically connected with high device on the control panel (2) Part (5), the PTC heating component (4) and the high device (5) are distributed in the lower surface of the control panel (2) mutually staggered On.

7. battery ptc heater according to claim 6, which is characterized in that the inside of the cavity body structure is additionally provided with Heat exchange water channel (6) on lower surface fixed to the control panel (2), inner part of the heat exchange water channel in the cavity body structure It is not configured with mutually independent first holding tank and the second holding tank, the PTC heating component (4) is embedded at described first and accommodates In slot, with heat exchange water channel (6) contact heat-exchanging, the high device (5) is contained in second holding tank.

8. battery ptc heater according to claim 7, which is characterized in that the heat exchange water channel (6) includes a pair of mutual Be arranged in parallel and at interval main channel (63), and side of the connection between a pair of main channel (63) be parallel to each other and Every multiple diversion channels (64) of setting, each diversion channel (64) is mutually perpendicular to each main channel (63), all adjacent described Collectively as first holding tank, the PTC heating component (4) includes embedding correspondingly in gap between diversion channel (64) The multiple PTC element (40) being set in the gap of the adjacent diversion channel (64), it is another between a pair of main channel (64) Side and multiple diversion channels (64) surround second holding tank jointly.

9. battery ptc heater according to claim 8, which is characterized in that each diversion channel (64) includes interval setting Roof (640) and bottom wall, and be connected to being parallel to each other between the roof (640) and the bottom wall and spaced A pair of sidewalls (641), the wall thickness of any direction of each main channel (63) are all larger than any direction of each diversion channel (64) Wall thickness, multiple PTC element (40) side wall (641) relative to each other with a pair of adjacent diversion channel (64) respectively Contact heat-exchanging.

10. battery ptc heater according to claim 9, which is characterized in that be electrically connected with control on the control panel (2) Make the electric-controlled switch (7) of the heating power of the PTC heating component (4), what the first shell (11) was formed as placing vertically Cover body structure, the second shell (12) are formed as the cover structure being open towards the cover body structure, the evacuation aperture shape On cover body structure described in Cheng Yu, the control panel (2) is arranged in a mutually vertical manner with the cover body structure, the diversion channel (64) it is sudden and violent It is exposed to the potsherd (8) being fitted on the side wall (641) of second holding tank for insulating and exchanging heat, it is described automatically controlled to open It closes in (7) setting to the potsherd (8).

11. battery ptc heater according to claim 10, which is characterized in that the electric-controlled switch (7) is fits to State the IGBT on potsherd (8).

12. battery ptc heater according to any one of claims 7 to 11, which is characterized in that the heat exchange water channel (6) at least one of water inlet pipe mouth (61) and effluent pipe mouth (62) are arranged across the first shell (11), pass through described The water inlet pipe mouth (61) and/or the effluent pipe mouth (62) of first shell (11) setting and the equal position of the evacuation aperture (10) In on the same side of the cavity body structure, first holding tank is arranged far from the evacuation aperture (10), and described second accommodates Slot is arranged close to the evacuation aperture (10).

13. a kind of battery heating system, including power battery, and the heating structure for heating the power battery, special Sign is that the heating structure includes the battery ptc heater according to any one of claim 5 to 12.

14. a kind of electric car, which is characterized in that the electric car is provided with battery heating according to claim 13 system System.